SECTION 05120 - STRUCTURAL STEEL PART 1 - …rlscg.com/site/wp-content/uploads/Division-5.pdf ·...

Juniata County School District 05120-1East Juniata High School Industrial Arts Addition STRUCTURAL STEEL

SECTION 05120 - STRUCTURAL STEEL

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General andSupplementary Conditions and Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes the following:

1. Structural steel.2. Architecturally exposed structural steel.3. Loose masonry lintels.4. Grout.

B. Related Sections include the following:

1. Division 1 Section "Quality Requirements" for independent testing agencyprocedures and administrative requirements.

2. Division 5 Section "Metal Fabrications" for not defined as structural steel.3. Division 9 painting Sections and Division 9 Section "High-Performance Coatings"

for surface preparation and priming requirements.

1.3 DEFINITIONS

A. Structural Steel: Elements of structural-steel frame, as classified by AISC 303, "Codeof Standard Practice for Steel Buildings and Bridges," that support design loads.

B. Architecturally Exposed Structural Steel: Structural steel designated as architecturallyexposed structural steel in the Contract Documents.

1.4 PERFORMANCE REQUIREMENTS

A. Connections: Provide final design and details of all connections required for theProject. All connections are to be engineered, selected and completed by structural-steel fabricator to withstand the ASD loads indicated by the Contract Documents and tocomply with other information and restrictions indicated.

1. Select and complete connections using schematic details indicated and AISC's"Manual of Steel Construction, Thirteenth edition.

2. Engineering Responsibility: Fabricator's responsibilities include using a qualifiedprofessional engineer to prepare structural analysis data for structural-steelconnections.AISC's "Load and Resistance Factor Design Specification forStructural Steel Buildings" requires that the basic type of construction, identifiedin options in paragraph below, be indicated.


1.5 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Shop Drawings: Show fabrication of structural-steel components.

1. Include details of cuts, connections, splices, camber, holes, and other pertinentdata.

2. Include embedment drawings.3. Indicate welds by standard AWS symbols, distinguishing between shop and field

welds, and show size, length, and type of each weld.4. Indicate type, size, and length of bolts, distinguishing between shop and field

bolts. Identify pretensioned and slip-critical high-strength bolted connections.5. For structural-steel connections indicated to comply with design loads, include

structural analysis data signed and sealed by the qualified professional engineerresponsible for their preparation.

C. Welding certificates.

D. Qualification Data: For Installer, fabricator, professional engineer and testing agency.

E. Mill Test Reports: Signed by manufacturers certifying that the following productscomply with requirements:

1. Structural steel including chemical and physical properties.2. Bolts, nuts, and washers including mechanical properties and chemical analysis.3. Direct-tension indicators.4. Tension-control, high-strength bolt-nut-washer assemblies.5. Shear stud connectors.6. Shop primers.7. Nonshrink grout.

F. Source quality-control test reports.

1.6 QUALITY ASSURANCE

A. Installer Qualifications: A qualified installer who participates in the AISC QualityCertification Program and is designated an AISC-Certified Erector, Category CSE.

B. Fabricator Qualifications: A qualified fabricator who participates in the AISC QualityCertification Program and is designated an AISC-Certified Plant, Category Sbd.

C. Shop-Painting Applicators: Qualified according to AISC's Sophisticated PaintEndorsement P2 or SSPC-QP 3, "Standard Procedure for Evaluating Qualifications ofShop Painting Applicators."

D. Welding: Qualify procedures and personnel according to AWS D1.1, "StructuralWelding Code--Steel."

E. Comply with applicable provisions of the following specifications and documents:

1. AISC 303, "Code of Standard Practice for Steel Buildings and Bridges."2. AISC 360, "Specification for Structural Steel Buildings.”


3. AISC 341 and 341s1, “Seismic Provisions for Structural Steel Buildings" and"Supplement No. 1."

4. RCSC's "Specification for Structural Joints Using ASTM A 325 or A 490 Bolts."

F. Preinstallation Conference: Conduct conference at Project site to comply withrequirements in Division 1 Section "Project Management and Coordination."

1.7 DELIVERY, STORAGE, AND HANDLING

A. Store materials to permit easy access for inspection and identification. Keep steelmembers off ground and spaced by using pallets, dunnage, or other supports andspacers. Protect steel members and packaged materials from erosion anddeterioration.

1. Store fasteners in a protected place. Clean and relubricate bolts and nuts thatbecome dry or rusty before use.

2. Do not store materials on structure in a manner that might cause distortion,damage, or overload to members or supporting structures. Repair or replacedamaged materials or structures as directed.

1.8 COORDINATION

A. Furnish anchorage items to be embedded in or attached to other construction withoutdelaying the Work. Provide setting diagrams, sheet metal templates, instructions, anddirections for installation.

1.9 SHOP DRAWINGS

A. Shop drawings are not contract documents, but are intended to demonstrateconformance to the requirements provided in the contract documents.

B. Prepare and submit original Shop Drawings detailing fabrication of structural steelcomponents. The use of the engineer or architect’s drawings as a reproduction forshop drawings or details is not permitted.

1. Include details of cuts, connections, splices, camber, holes, and other pertinentdata.

2. Indicate welds by standard AWS symbols, distinguishing between shop and fieldwelds, and show size, length, and type of each weld.

3. Indicate type, size, and length of bolts, distinguishing between shop and field bolts.Identify high-strength bolted slip-critical, direct-tension, or tensioned shear/bearingconnections.

4. Include plans, elevations, sections and complete details to describe clearly, at anample scale, all work to be provided. Erection drawings shall show clearly thesize, grade, and location, both in plan and in elevation, of each member. Inaddition to basic information given in the contract drawings, erection drawingsshall contain (for each piece) the erection mark, the location, size and reinforcingfor web penetrations, the elevation of top of beam, (where sloped), and camber.

5. Shop drawings shall be accurately dimensioned and clearly noted.


C. Only shop drawings marked “approved” or “approved as noted” may be used in thework. Shop drawings marked “revise and re-submit” shall be corrected as required andre-submitted as many times as necessary until the drawings are marked “approved” or“approved as noted.” All revisions made on subsequent shop drawing submissionsshall be clouded or circled. Re-submitted shop drawings, which do not have allchanges circled and clearly identified, will be returned to the contractor “not reviewed.”Do not fabricate or deliver work to the site before drawings are reviewed and returned.

D. Shop drawings shall bear the Contractor’s stamp indicating approval with respect tomeans, methods, techniques, sequences, and procedures of construction and safetyprecautions incidental thereto. Drawings not reviewed and stamped by the Contractorwill be stamped “not reviewed”, and returned to the Contractor.

E. Review of shop drawings is performed only to review conformance with design intentand contract documents. Errors and/or omissions in the shop drawings will be notedon the drawings accordingly. Reviewer is not responsible for the completeness andaccuracy of shop drawings. Acceptance of shop drawings, including deviations notdetected during the review, will not relieve the contractor from the responsibility toprovide work in conformance with the contract documents. Review of shop drawingswill include the following:

1. Member size, grade, spacing and elevation.2. Structural integrity of connections.

F. Temporary, shipping, handling or erection loading will not be considered in the review.

G. Any mark added to the shop drawings during the review that would or could result inincorrect fit of any part, or result in insufficient strength or stability of the structure shallbe reported to the Architect in writing. Failure to provide prompt and immediatenotification shall result in responsibility for the incorrect mark or correction restingsolely with the contractor.

H. Connections: Prior to the submission of individual structural steel piece drawings,contractor shall submit job standard connection details, and accompanying calculationsfor the same, to be used throughout the project.

1. Each job standard detail shall be labeled with the prefix JS, followed by a detailnumber, and shall be numbered consecutively.

2. Job standard details will be reviewed by structural engineer and returned to thecontractor stamped “approved” or “revise and re-submit”.

3. At all connections indicated on structural steel piece drawings, the approved jobstandard detail to be used shall be referenced.

4. Job standard connections may not be referenced on piece drawings until it isreturned to the contractor stamped “approved.”

5. Reactions indicated on the Contract Drawings shall be transcribed onto theerection drawings.

6. Indicate on each individual column and beam connection the load (in kips) whichthat particular connection is capable of supporting.

I. Prepare anchor bolt and base plate erection drawings containing complete location andplacing details, including details of all templates. Provide anchor bolt erection drawingsto the concrete trade in advance of applicable concrete work and in coordination withconcrete construction sequence.


J. Prior to making shop drawings for any portion of the work involving alterations to or tie-in to existing structure, make all necessary field observations and measurements andsurveys of existing conditions. If probes are required to accomplish suchmeasurements, give timely notice where probes will be required.

PART 2 - PRODUCTS

2.1 STRUCTURAL-STEEL MATERIALS

A. Recycled Content of Steel Products: Provide products with an average recycledcontent of steel products so postconsumer recycled content plus one-half ofpreconsumer recycled content is not less than 25 percent.

B. W-Shapes: ASTM A 992/A 992M.

C. Channels, Angles, M, S-Shapes: ASTM A 36/A 36M.

D. Plate and Bar: ASTM A 36/A 36M.

E. Cold-Formed Hollow Structural Sections: ASTM A 500, Grade B, structural tubing.

F. Welding Electrodes: Comply with AWS requirements.

2.2 BOLTS, CONNECTORS, AND ANCHORS

A. High-Strength Bolts, Nuts, and Washers: ASTM A 325 (ASTM A 325M), Type 1, heavyhex steel structural bolts; ASTM A 563 (ASTM A 563M) heavy hex carbon-steel nuts;and ASTM F 436 (ASTM F 436M) hardened carbon-steel washers.

1. Finish: Plain for locations where final installation is not exposed to weather.Unless otherwise noted on the drawings, apply hot-dip zinc coating,ASTM A 153/A 153M, Class C at locations where steel is permanently exposedto weather.

2. Direct-Tension Indicators: ASTM F 959, Type 325 (ASTM F 959M, Type 8.8,)compressible-washer type.

a. Finish: Plain for locations where final installation is not exposed toweather. Unless otherwise noted on the drawings, apply hot-dip zinccoating, ASTM A 153/A 153M, Class C at locations where steel ispermanently exposed to weather.

B. Tension-Control, High-Strength Bolt-Nut-Washer Assemblies: ASTM F 1852, Type 1,round head steel structural bolts with splined ends; ASTM A 563 (ASTM A 563M)heavy hex carbon-steel nuts; and ASTM F 436 (ASTM F 436M) hardened carbon-steelwashers.

1. Finish: Plain for locations where final installation is not exposed to weather.Unless otherwise noted on the drawings, apply hot-dip zinc coating,ASTM A 153/A 153M, Class C at locations where steel is permanently exposedto weather.


C. Shear Connectors: ASTM A 108, Grades 1015 through 1020, headed-stud type, cold-finished carbon steel; AWS D1.1, Type B.

D. Unheaded Anchor Rods: ASTM F 1554, Grade 55, weldable.

1. Configuration: Hooked.2. Nuts: ASTM A 563 (ASTM A 563M) heavy hex carbon steel.3. Plate Washers: ASTM A 36/A 36M carbon steel.4. Washers: ASTM F 436 (ASTM F 436M) hardened carbon steel.5. Finish: Plain.

E. Headed Anchor Rods: ASTM F 1554, Grade 55, weldable, straight.

1. Nuts: ASTM A 563 (ASTM A 563M) heavy hex carbon steel.2. Plate Washers: ASTM A 36/A 36M carbon steel.3. Washers: ASTM F 436 (ASTM F 436M) hardened carbon steel.4. Finish: Plain.

F. Threaded Rods: ASTM A 36/A 36M.

1. Nuts: ASTM A 563 (ASTM A 563M) heavy hex carbon steel.2. Washers: ASTM A 36/A 36M carbon steel.3. Finish: Plain.

2.3 PRIMER

A. Primer: SSPC-Paint 23, latex primer. Coordinate compatibility of primer with finalpaint finish as specified in Division 9 Sections.

B. Primer: Fabricator's standard lead- and chromate-free, nonasphaltic, rust-inhibitingprimer.

C. Galvanizing Repair Paint: MPI#18, MPI#19, or SSPC-Paint 20.

2.4 GROUT

A. Nonmetallic, Shrinkage-Resistant Grout: ASTM C 1107, factory-packaged, nonmetallicaggregate grout, noncorrosive, nonstaining, mixed with water to consistency suitablefor application and a 30-minute working time.

2.5 FABRICATION

A. Structural Steel: Fabricate and assemble in shop to greatest extent possible.Fabricate according to AISC's "Code of Standard Practice for Steel Buildings andBridges" and AISC's "Load and Resistance Factor Design Specification for StructuralSteel Buildings."

1. Camber structural-steel members where indicated.2. Identify high-strength structural steel according to ASTM A 6/ A 6M and maintain

markings until structural steel has been erected.3. Mark and match-mark materials for field assembly.


4. Complete structural-steel assemblies, including welding of units, before startingshop-priming operations.

B. Thermal Cutting: Perform thermal cutting by machine to greatest extent possible.

1. Plane thermally cut edges to be welded to comply with requirements inAWS D1.1.

C. Bolt Holes: Cut, drill, or punch standard bolt holes perpendicular to metal surfaces.

D. Finishing: Accurately finish ends of columns and other members transmitting bearingloads.

E. Cleaning: Clean and prepare steel surfaces that are to remain unpainted and notexposed to public view according to SSPC-SP 1, "Solvent Cleaning." All other steelsurfaces to be cleaned and prepared according to SSPC-SP 3, “Power Tool Cleaning.”

F. Shear Connectors: Prepare steel surfaces as recommended by manufacturer of shearconnectors. Use automatic end welding of headed-stud shear connectors according toAWS D1.1 and manufacturer's written instructions.

G. Welded Door Frames: Build up welded door frames attached to structural steel. Weldexposed joints continuously and grind smooth. Plug-weld fixed steel bar stops toframes. Secure removable stops to frames with countersunk, cross-recessed headmachine screws, uniformly spaced not more than 10 inches (250 mm) on-center,unless otherwise indicated.

H. Holes: Provide holes required for securing other work to structural steel and forpassage of other work through steel framing members.

1. Cut, drill, or punch holes perpendicular to steel surfaces. Do not thermally cutbolt holes or enlarge holes by burning.

2. Base-Plate Holes: Cut, drill, mechanically thermal cut, or punch holesperpendicular to steel surfaces.

3. Weld threaded nuts to framing and other specialty items indicated to receiveother work.

2.6 SHOP CONNECTIONS

A. High-Strength Bolts: Shop install high-strength bolts according to RCSC's"Specification for Structural Joints Using ASTM A 325 or A 490 Bolts" for type of boltand type of joint specified.

1. Joint Type: Snug tightened.

B. Weld Connections: Comply with AWS D1.1 for welding procedure specifications,tolerances, appearance, and quality of welds and for methods used in correctingwelding work.

1. Remove backing bars or runoff tabs, back gouge, and grind steel smooth.2. Assemble and weld built-up sections by methods that will maintain true alignment

of axes without exceeding tolerances of AISC's "Code of Standard Practice forSteel Buildings and Bridges" for mill material.


3. Verify that weld sizes, fabrication sequence, and equipment used forarchitecturally exposed structural steel will limit distortions to allowabletolerances. Prevent weld show-through on exposed steel surfaces.

a. Grind butt welds flush.b. Grind or fill exposed fillet welds to smooth profile. Dress exposed welds.

2.7 SHOP PRIMING

A. Shop prime steel surfaces except the following:

1. Surfaces embedded in concrete or mortar. Extend priming of partially embeddedmembers to a depth of 2 inches (50 mm).

2. Surfaces to be field welded.3. Surfaces to be high-strength bolted with slip-critical connections.4. Surfaces to receive sprayed fire-resistive materials.5. Galvanized surfaces.

B. Surface Preparation: Clean surfaces to be painted. Remove loose rust and mill scaleand spatter, slag, or flux deposits. Prepare surfaces according to the followingspecifications and standards:

1. SSPC-SP 6/NACE No. 3, “Commercial Blast Cleaning.”

C. Priming: Immediately after surface preparation, apply primer according tomanufacturer's written instructions and at rate recommended by SSPC to provide a dryfilm thickness of not less than 1.5 mils (0.038 mm). Use priming methods that result infull coverage of joints, corners, edges, and exposed surfaces.

1. Stripe paint corners, crevices, bolts, welds, and sharp edges.2. Apply two coats of shop paint to inaccessible surfaces after assembly or erection.

Change color of second coat to distinguish it from first.3. Apply two coats of shop paint to all steel that is permanently exposed to weather

in its final state.

2.8 GALVANIZING

A. Hot-Dip Galvanized Finish: Apply zinc coating by the hot-dip process to structural steelaccording to ASTM A 123/ A 123M.

1. Fill vent holes and grind smooth after galvanizing.2. Galvanize lintels and shelf angles attached to structural-steel frame and located

in exterior walls.

2.9 SOURCE QUALITY CONTROL

A. Owner will engage an independent testing and inspecting agency to perform shop testsand inspections and prepare test reports.

1. Provide testing agency with access to places where structural-steel work is beingfabricated or produced to perform tests and inspections.


B. Correct deficiencies in Work that test reports and inspections indicate does not complywith the Contract Documents.

C. Bolted Connections: Shop-bolted connections will be inspected according to RCSC's"Specification for Structural Joints Using ASTM A 325 or A 490 Bolts."

D. Welded Connections: In addition to visual inspection, shop-welded connections will betested and inspected according to AWS D1.1 and the following inspection procedures,at testing agency's option:

1. Liquid Penetrant Inspection: ASTM E 165.2. Magnetic Particle Inspection: ASTM E 709; performed on root pass and on

finished weld. Cracks or zones of incomplete fusion or penetration will not beaccepted.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify elevations of concrete- and masonry-bearing surfaces and locations of anchorrods, bearing plates, and other embedments, with steel erector present, for compliancewith requirements.

B. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Provide temporary shores, guys, braces, and other supports during erection to keepstructural steel secure, plumb, and in alignment against temporary construction loadsand loads equal in intensity to design loads. Remove temporary supports whenpermanent structural steel, connections, and bracing are in place, unless otherwiseindicated.

3.3 ERECTION

A. Set structural steel accurately in locations and to elevations indicated and according toAISC's "Code of Standard Practice for Steel Buildings and Bridges" and "Load andResistance Factor Design Specification for Structural Steel Buildings."

B. Base and Bearing Plates: Clean concrete- and masonry-bearing surfaces of bond-reducing materials, and roughen surfaces prior to setting base and bearing plates.Clean bottom surface of base and bearing plates.

1. Set base and bearing plates for structural members on wedges, shims, or settingnuts as required.

2. Weld plate washers to top of base plate.3. Snug-tighten anchor rods after supported members have been positioned and

plumbed. Do not remove wedges or shims but, if protruding, cut off flush withedge of base or bearing plate before packing with grout.


4. Promptly pack grout solidly between bearing surfaces and base or bearing platesso no voids remain. Neatly finish exposed surfaces; protect grout and allow tocure. Comply with manufacturer's written installation instructions for shrinkage-resistant grouts.

C. Maintain erection tolerances of structural steel and architecturally exposed structuralsteel within AISC's "Code of Standard Practice for Steel Buildings and Bridges."

D. Align and adjust various members forming part of complete frame or structure beforepermanently fastening. Before assembly, clean bearing surfaces and other surfacesthat will be in permanent contact with members. Perform necessary adjustments tocompensate for discrepancies in elevations and alignment.

1. Level and plumb individual members of structure.2. Make allowances for difference between temperature at time of erection and

mean temperature when structure is completed and in service.

E. Splice members only where indicated.

F. Remove erection bolts on welded, architecturally exposed structural steel; fill holes withplug welds; and grind smooth at exposed surfaces.

G. Do not use thermal cutting during erection unless approved by Architect. Finishthermally cut sections within smoothness limits in AWS D1.1.

H. Do not enlarge unfair holes in members by burning or using drift pins. Ream holes thatmust be enlarged to admit bolts.

I. Shear Connectors: Prepare steel surfaces as recommended by manufacturer of shearconnectors. Use automatic end welding of headed-stud shear connectors according toAWS D1.1 and manufacturer's written instructions.

3.4 FIELD CONNECTIONS

A. High-Strength Bolts: Install high-strength bolts according to RCSC's "Specification forStructural Joints Using ASTM A 325 or A 490 Bolts" for type of bolt and type of jointspecified.

1. Joint Type: Snug tightened.

B. Weld Connections: Comply with AWS D1.1 for welding procedure specifications,tolerances, appearance, and quality of welds and for methods used in correctingwelding work.

1. Comply with AISC's "Code of Standard Practice for Steel Buildings and Bridges"and "Load and Resistance Factor Design Specification for Structural SteelBuildings" for bearing, adequacy of temporary connections, alignment, andremoval of paint on surfaces adjacent to field welds.

2. Remove backing bars or runoff tabs, back gouge, and grind steel smooth.3. Assemble and weld built-up sections by methods that will maintain true alignment

of axes without exceeding tolerances of AISC's "Code of Standard Practice forSteel Buildings and Bridges" for mill material.


4. Verify that weld sizes, fabrication sequence, and equipment used forarchitecturally exposed structural steel will limit distortions to allowabletolerances. Prevent weld show-through on exposed steel surfaces.

a. Grind butt welds flush.b. Grind or fill exposed fillet welds to smooth profile. Dress exposed welds.

3.5 FIELD QUALITY CONTROL

A. Testing Agency: The General Contractor shall engage a qualified independent testingand inspecting agency to inspect field welds and high-strength bolted connections.

B. Bolted Connections: Shop-bolted connections will be inspected according to RCSC's"Specification for Structural Joints Using ASTM A 325 or A 490 Bolts."

C. Welded Connections: Field welds will be visually inspected according to AWS D1.1.

1. In addition to visual inspection, field welds will be tested according to AWS D1.1and the following inspection procedures, at testing agency's option:

a. Liquid Penetrant Inspection: ASTM E 165.b. Magnetic Particle Inspection: ASTM E 709; performed on root pass and on

finished weld. Cracks or zones of incomplete fusion or penetration will notbe accepted.

c. Ultrasonic Inspection: ASTM E 164.d. Radiographic Inspection: ASTM E 94.

D. Correct deficiencies in Work that test reports and inspections indicate does not complywith the Contract Documents.

3.6 REPAIRS AND PROTECTION

A. Repair damaged galvanized coatings on galvanized items with galvanized repair paintaccording to ASTM A 780 and manufacturer's written instructions.

B. Touchup Painting: Cleaning and touchup painting are specified in Division 9 paintingSections.

END OF SECTION

Juniata County School District 05210-1

East Juniata High School Industrial Arts Addition STEEL JOISTS

SECTION 05210 - STEEL JOISTS

PART 1 - GENERAL


A. Drawings and general provisions of the Contract, including General and Supplemen-tary Conditions and Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY


1. Open-web K-series steel joists.2. KCS-type, open-web K-series steel joists.3. Joist accessories.


1. Division 9 Section "Painting" for prime painting.

1.3 DEFINITIONS

A. Special Joists: Joists requiring modification by the manufacturer to support nonuni-form, unequal, or special loading conditions that invalidate SJI's "Standard Specifica-tions Load Tables and Weight Tables for Steel Joists and Joist Girders."


A. Structural Performance: Provide special joists and connections capable of withstand-ing design loads within limits and under conditions indicated.

B. Structural Performance: Provide special joists and connections capable of withstand-ing the following design loads within limits and under conditions indicated:

1. Refer to Structural Drawings

C. Design joists to withstand design loads with Live and Total load deflections no greaterthan the following:

1. Roof Joists: Vertical deflection of 1/360 for Live Loads and 1/240 of Total Loadsof the span.

1.5 SUBMITTALS

A. Product Data: For each type of joist, accessory, and product indicated.



B. Shop Drawings: Show layout, mark, number, type, location, and spacings of joists. In-clude joining and anchorage details, bracing, bridging, accessories; splice and connec-tion locations and details; and attachments to other construction.

1. Indicate locations and details of anchorage devices and bearing plates to be em-bedded in other construction.

2. Comprehensive engineering analysis certified by the qualified professional engi-neer responsible for its preparation.

C. Welding Certificates: Copies of certificates for welding procedures and personnel.

D. Mill certificates signed by manufacturers of bolts certifying that their products complywith specified requirements.

E. Qualification Data: For firms and persons specified in "Quality Assurance" Article todemonstrate their capabilities and experience. Include lists of completed projects withproject names and addresses, names and addresses of architects and owners, andother information specified.

F. Research/Evaluation Reports: Evidence of steel joists' compliance with building codein effect for Project, from a model code organization acceptable to authorities havingjurisdiction.


A. Manufacturer Qualifications: A firm experienced in manufacturing joists similar to thoseindicated for this Project and with a record of successful in-service performance.

1. Manufacturer must be certified by SJI to manufacture joists complying with SJIstandard specifications and load tables.

2. Assumes responsibility for engineering special joists to comply with performancerequirements. This responsibility includes preparation of Shop Drawings andcomprehensive engineering analysis by a qualified professional engineer.

3. Professional Engineer Qualifications: A professional engineer who is legally au-thorized to practice in jurisdiction where Project is located and who is experi-enced in providing engineering services of the kind indicated. Engineering ser-vices are defined as those performed for installations of joists that are similar tothose indicated for this Project in material, design, and extent.

B. SJI Specifications: Comply with SJI's "Standard Specifications Load Tables andWeight Tables for Steel Joists and Joist Girders" (hereafter, "Specifications"), applica-ble to types of joists indicated.

C. Welding: Qualify procedures and personnel according to AWS D1.1, "Structural Weld-ing Code--Steel"; and AWS D1.3 "Structural Welding Code--Sheet Steel."


A. Deliver, store, and handle joists as recommended in SJI's "Specifications."

B. Protect joists from corrosion, deformation, and other damage during delivery, storage,and handling.



1.8 SEQUENCING

A. Deliver steel bearing plates and other devices to be built into concrete and masonryconstruction.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Steel: Comply with SJI's "Specifications" for chord and web members.

B. Steel Bearing Plates: ASTM A 36/A 36M.

C. High-Strength Bolts and Nuts: ASTM A 325, Type 1, heavy hex steel structural bolts,heavy hex carbon-steel nuts, and hardened carbon-steel washers.

1. Finish: Plain uncoated

D. Welding Electrodes: Comply with AWS standards.

2.2 PRIMERS

A. Primer: SSPC-Paint 15, Type I, red oxide; FS TT-P-636, red oxide; or manufacturer'sstandard shop primer complying with performance requirements of either of these red-oxide primers.

B. Primer: Fast-curing, lead- and chromate-free, universal modified-alkyd primer withgood resistance to normal atmospheric corrosion, complying with performance re-quirements in FS TT-P-664.

2.3 OPEN-WEB K-SERIES STEEL JOISTS

A. Manufacture steel joists according to "Standard Specifications for Open Web SteelJoists, K-Series," in SJI's "Specifications," with steel-angle top- and bottom-chordmembers, underslung ends, and parallel top chord; of joist type indicated.

1. Joist Type: K-series steel joists and KCS-type K-series steel joists.

B. Comply with AWS requirements and procedures for shop welding, appearance, qualityof welds, and methods used in correcting welding work.

C. Provide holes in chord members for connecting and securing other construction tojoists.

D. Top-Chord Extensions: Extend top chords of joists with SJI's Type S top-chord exten-sions where indicated, complying with SJI's "Specifications."

E. Extended Ends: Extend bearing ends of joists with SJI's Type R extended ends whereindicated, complying with SJI's "Specifications."



F. Do not camber joists.

G. Camber joists according to SJI's "Specifications.

H. Equip bearing ends of joists with manufacturer's standard beveled ends or slopedshoes if joist slope exceeds 1/4 inch per 12 inches.

2.4 JOIST ACCESSORIES

A. Bridging: Provide bridging anchors and number of rows of horizontal or diagonal bridg-ing of material, size, and type required by SJI's "Specifications" for type of joist, chordsize, spacing, and span.

B. Bridging: Schematically indicated. Detail and fabricate according to SJI's "Specifica-tions."

C. Bridging: Fabricate as indicated and according to SJI's "Specifications."

1. Furnish additional erection bridging if required.

2. Furnish uplift bridging as required

D. Supply ceiling extensions, either extended bottom-chord elements or a separate exten-sion unit of enough strength to support ceiling construction. Extend ends to within 1/2inch of finished wall surface, unless otherwise indicated.

E. Supply miscellaneous accessories, including splice plates and bolts required by joistmanufacturer to complete joist installation.

2.5 CLEANING AND SHOP PAINTING

A. Clean and remove loose scale, heavy rust, and other foreign materials from fabricatedjoists and accessories to be primed.

B. joists and accessories.

C. Apply one shop coat of primer to joists and joist accessories to be primed to provide acontinuous, dry paint film not less than 1 mil thick.

D. Painting of joists and joist accessories is specified in Division 9 Section "Painting."

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine supporting substrates, embedded bearing plates, and abutting structuralframing, with Installer present, for compliance with requirements for installation toler-ances and other conditions affecting performance.

B. Proceed with installation only after unsatisfactory conditions have been corrected.



3.2 INSTALLATION

A. Do not install joists until supporting construction is in place and secured.

B. Install joists and accessories plumb, square, and true to line; securely fasten to sup-porting construction according to SJI's "Specifications," joist manufacturer's writtenrecommendations, and requirements in this Section.

1. Before installation, splice joists delivered to Project site in more than one piece.2. Space, adjust, and align joists accurately in location before permanently fas-

tening.3. Install temporary bracing and erection bridging, connections, and anchors to en-

sure that joists are stabilized during construction.4. Delay rigidly connecting bottom-chord extensions to columns or supports until

dead loads have been applied.

C. Field weld joists to supporting steel bearing plates. Coordinate welding sequence andprocedure with placement of joists. Comply with AWS requirements and proceduresfor welding, appearance and quality of welds, and methods used in correcting weldingwork.

D. Bolt joists to supporting steel framework using carbon-steel bolts, unless otherwise in-dicated.

E. Bolt joists to supporting steel framework using high-strength structural bolts, unlessotherwise indicated. Comply with RCSC's Allowable Stress Design Specification forStructural Joints Using ASTM A 325 or ASTM A 490 Bolts for high-strength structuralbolt installation and tightening requirements.

F. Install and connect bridging concurrently with joist erection, before construction loadsare applied. Anchor ends of bridging lines at top and bottom chords if terminating atwalls or beams.


A. Testing Agency: Owner will engage a qualified independent testing and inspectingagency to inspect field welds.

B. Field welds will be visually inspected according to AWS D1.1.

C. In addition to visual inspection, field welds will be tested according to AWS D1.1 andthe following procedures, as applicable:

1. Radiographic Testing: ASTM E 94 and ASTM E 142.2. Magnetic Particle Inspection: ASTM E 709.3. Ultrasonic Testing: ASTM E 164.4. Liquid Penetrant Inspection: ASTM E 165.

D. Bolted connections will be visually inspected.

1. High-strength, field-bolted connections will be tested and verified according toprocedures in RCSC's Allowable Stress Design Specification for Structural JointsUsing ASTM A 325 or ASTM A 490 Bolts.



E. Correct deficiencies in Work that inspections and test reports have indicated are not incompliance with specified requirements.

F. Additional testing will be performed to determine compliance of corrected Work withspecified requirements.


A. Repair damaged galvanized coatings on galvanized items with galvanized repair paintaccording to ASTM A 780 and manufacturer's written instructions.

B. Touchup Painting: After installation, promptly clean, prepare, and prime or reprimefield connections, rust spots, and abraded surfaces of prime-painted joists and acces-sories, abutting structural steel.

1. Clean and prepare surfaces by hand-tool cleaning, SSPC-SP 2, or power-toolcleaning, SSPC-SP 3.

2. Apply a compatible primer of the same type as the shop primer used on adjacentsurfaces.

C. Touchup Painting: Cleaning and touchup painting are specified in Division 9 Section"Painting."

D. Provide final protection and maintain conditions, in a manner acceptable to manufac-turer and Installer, that ensure joists and accessories are without damage or deteriora-tion at time of Substantial Completion.

END OF SECTION

Juniata County School District 05310-1 East Juniata High School Industrial Arts Addition STEEL DECK

SECTION 05310 - STEEL DECK

PART 1 - GENERAL


A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY


1. Roof deck.


1. Division 3 Section "Cast-in-Place Concrete" for concrete fill. 2. Division 5 Section "Metal Fabrications" for framing deck openings with

miscellaneous steel shapes. 3. Division 9 painting Sections for repair painting of primed deck. 4. Floor Deck

1.3 SUBMITTALS

A. Product Data: For each type of deck, accessory, and product indicated.

B. Shop Drawings: Show layout and types of deck panels, anchorage details, reinforcing channels, pans, cut deck openings, special jointing, accessories, and attachments to other construction.

C. Product Certificates: For each type of steel deck, signed by product manufacturer.

D. Welding certificates.

E. Field quality-control test and inspection reports.

F. Research/Evaluation Reports: For steel deck.


A. Testing Agency Qualifications: An independent agency qualified according to ASTM E 329 for testing indicated.

B. Welding: Qualify procedures and personnel according to AWS D1.3, "Structural Welding Code - Sheet Steel."


C. Fire-Test-Response Characteristics: Where indicated, provide steel deck units identical to those tested for fire resistance per ASTM E 119 by a testing and inspecting agency acceptable to authorities having jurisdiction.

1. Fire-Resistance Ratings: Indicated by design designations of applicable testing and inspecting agency.

2. Steel deck units shall be identified with appropriate markings of applicable testing and inspecting agency.

D. AISI Specifications: Comply with calculated structural characteristics of steel deck according to AISI's "North American Specification for the Design of Cold-Formed Steel Structural Members."

E. FMG Listing: Provide steel roof deck evaluated by FMG and listed in its "Approval Guide, Building Materials" for Class 1 fire rating and Class 1-90 windstorm ratings.

F. Recycled Content of Steel Products: Provide products with an average recycled content of steel products so postconsumer recycled content plus one-half of preconsumer recycled content is not less than 25 percent.


A. Protect steel deck from corrosion, deformation, and other damage during delivery, storage, and handling.

B. Stack steel deck on platforms or pallets and slope to provide drainage. Protect with a waterproof covering and ventilate to avoid condensation.

1. Protect and ventilate acoustical cellular roof deck with factory-installed insulation to maintain insulation free of moisture.

1.6 COORDINATION

A. Coordinate installation of sound-absorbing insulation strips in topside ribs of acoustical deck with roofing installation specified in Division 7 Section to ensure protection of insulation strips against damage from effects of weather and other causes.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1. Steel Deck: a. Canam Steel Corp.;The Canam Manac Group. b. Consolidated Systems, Inc. c. New Millennium Building Systems, LLC. d. Nucor Corp.; Vulcraft Division. e. Roof Deck, Inc.


f. United Steel Deck, Inc.

2.2 ROOF DECK

A. Steel Roof Deck: Fabricate panels, without top-flange stiffening grooves, to comply with "SDI Specifications and Commentary for Steel Roof Deck," in SDI Publication No. 30, and with the following:

1. Galvanized Steel Sheet: ASTM A 653/A 653M, Structural Steel (SS), Grade 33 (230), G60 (Z180) zinc coating.

2. Galvanized and Shop-Primed Steel Sheet: ASTM A 653/A 653M, Structural Steel (SS), Grade 33 (230), G60 (Z180) zinc coating; cleaned, pretreated, and primed with manufacturer's standard baked-on, rust-inhibitive primer.

a. Color: Gray top surface with white underside.

3. Deck Profile: As indicated. 4. Profile Depth: As indicated. 5. Design Uncoated-Steel Thickness: As indicated, but not less than 0.0358 inch

(0.91 mm). 6. Span Condition: Triple span or more. 7. Side Laps: Overlapped or interlocking seam at Contractor's option.

2.3 COMPOSITE ROOF DECK

A. Composite Steel Floor Deck: Fabricate panels, with integrally embossed or rasisedpattern ribs

and interlocking side laps, to comply with “SDI specifications and commrntary for Composite

Steel Floor Deck,” in SDI Publication No. 30, with the minimum section properties indicated,

and with the following:

1. Galvanized Steel Sheet: ASTM A 653/A 653M, Structural Steel (SS), Grade 33, G60

zinc coating.

2. Profile Depth: As indicated

3. Design Uncoated-Steel Thickness: 0.0358 inch

4. Span Condition: Triple span or more

5. Floor Deck

2.4 ACCESSORIES

A. General: Provide manufacturer's standard accessory materials for deck that comply with requirements indicated.

B. Mechanical Fasteners: Corrosion-resistant, low-velocity, power-actuated or pneumatically driven carbon-steel fasteners; or self-drilling, self-threading screws.

C. Side-Lap Fasteners: Corrosion-resistant, hexagonal washer head; self-drilling, carbon-steel screws, No. 10 (4.8-mm) minimum diameter.

D. Flexible Closure Strips: Vulcanized, closed-cell, synthetic rubber.


E. Miscellaneous Sheet Metal Deck Accessories: Steel sheet, minimum yield strength of 33,000 psi (230 MPa), not less than 0.0359-inch (0.91-mm) design uncoated thickness, of same material and finish as deck; of profile indicated or required for application.

F. Pour Stops and Girder Fillers: Steel sheet, minimum yield strength of 33,000 psi (230 MPa), of same material and finish as deck, and of thickness and profile recommended by SDI Publication No. 30 for overhang and slab depth.

G. Column Closures, End Closures, Z-Closures, and Cover Plates: Steel sheet, of same material, finish, and thickness as deck, unless otherwise indicated.

H. Flat Sump Plate: Single-piece steel sheet, 0.0747 inch (1.90 mm) thick, of same material and finish as deck. For drains, cut holes in the field.

I. Galvanizing Repair Paint: SSPC-Paint 20 or DOD-P-21035, with dry film containing a minimum of 94 percent zinc dust by weight.

J. Repair Paint: Manufacturer's standard rust-inhibitive primer of same color as primer.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine supporting frame and field conditions for compliance with requirements for installation tolerances and other conditions affecting performance.

3.2 INSTALLATION, GENERAL

A. Install deck panels and accessories according to applicable specifications and commentary in SDI Publication No. 30, manufacturer's written instructions, and requirements in this Section.

B. Install temporary shoring before placing deck panels, if required to meet deflection limitations.

C. Locate deck bundles to prevent overloading of supporting members.

D. Place deck panels on supporting frame and adjust to final position with ends accurately aligned and bearing on supporting frame before being permanently fastened. Do not stretch or contract side-lap interlocks.

E. Place deck panels flat and square and fasten to supporting frame without warp or deflection.

F. Cut and neatly fit deck panels and accessories around openings and other work projecting through or adjacent to deck.

G. Provide additional reinforcement and closure pieces at openings as required for strength, continuity of deck, and support of other work.


H. Comply with AWS requirements and procedures for manual shielded metal arc welding, appearance and quality of welds, and methods used for correcting welding work.

I. Mechanical fasteners may be used in lieu of welding to fasten deck with the approval of the Structural Engineer. Locate mechanical fasteners and install according to deck manufacturer's written instructions.

3.3 ROOF-DECK INSTALLATION

A. Fasten roof-deck panels to steel supporting members by arc spot (puddle) welds of the surface diameter indicated or arc seam welds with an equal perimeter that is not less than 1-1/2 inches (38 mm) long, and as follows:

1. Weld Diameter: 5/8 inch (16 mm), nominal. 2. Weld Spacing: Weld edge and interior ribs of deck units with a minimum of two

welds per deck unit at each support. Space welds 12 inches (305 mm) apart in the field of roof and 6 inches (150 mm) apart in roof corners and perimeter, based on roof-area definitions in FMG Loss Prevention Data Sheet 1-28.

3. Weld Washers: Install weld washers at each weld location if required by deck thickness and as per SDI requirements.

B. Side-Lap and Perimeter Edge Fastening: Fasten side laps and perimeter edges of panels between supports, at intervals not exceeding the lesser of 1/2 of the span or 24 inches, and as follows:

1. Mechanically fasten with self-drilling, No. 10 (4.8-mm-) diameter or larger, carbon-steel screws.

C. End Bearing: Install deck ends over supporting frame with a minimum end bearing of 1-1/2 inches (38 mm), with end joints as follows:

1. End Joints: Lapped 2 inches (51 mm) minimum.

D. Roof Sump Pans and Sump Plates: Install over openings provided in roof deck and weld flanges to top of deck. Space welds not more than 12 inches (305 mm) apart with at least one weld at each corner.

1. Install reinforcing channels or zees in ribs to span between supports and weld or mechanically fasten.

E. Miscellaneous Roof-Deck Accessories: Install ridge and valley plates, finish strips, end closures, and reinforcing channels according to deck manufacturer's written instructions. Weld or mechanically fasten to substrate to provide a complete deck installation.

1. Weld cover plates at changes in direction of roof-deck panels, unless otherwise indicated.

F. Flexible Closure Strips: Install flexible closure strips over partitions, walls, and where indicated. Install with adhesive according to manufacturer's written instructions to ensure complete closure.


G. There shall be NO hanging of any items such as ceilings, conduit, piping, duckwork, etc. from the roof deck.


A. Testing Agency: The General Contractor shall engage a qualified independent testing and inspecting agency to perform field tests and inspections and prepare test reports.

B. Field welds will be subject to inspection.

C. Testing agency will report inspection results promptly and in writing to Contractor and Architect.

D. Remove and replace work that does not comply with specified requirements.

E. Additional inspecting, at Contractor's expense, will be performed to determine compliance of corrected work with specified requirements.


A. Galvanizing Repairs: Prepare and repair damaged galvanized coatings on both surfaces of deck with galvanized repair paint according to ASTM A 780 and manufacturer's written instructions.

B. Repair Painting: Wire brush and clean rust spots, welds, and abraded areas on both surfaces of prime-painted deck immediately after installation, and apply repair paint.

1. Apply repair paint, of same color as adjacent shop-primed deck, to bottom surfaces of deck exposed to view.

C. Provide final protection and maintain conditions to ensure that steel deck is without damage or deterioration at time of Substantial Completion.

END OF SECTION

Juniata County School District 05400-1East Juniata High School Industrial Arts Addition COLD FORMED METAL FRAMING

SECTION 054000 - COLD-FORMED METAL FRAMING

PART 1 - GENERAL


A. Drawings and general provisions of the Contract, including General andSupplementary Conditions and Division 01 Specification Sections, apply to thisSection.

1.2 SUMMARY


1. Interior load-bearing wall framing.


1. L/480 for Live Loads.

2. L/360 for Total Loads.

3. L/600 at locations where wall studs back up masonry veneer.


A. Structural Performance: Provide cold-formed metal framing capable of withstandingdesign loads within limits and under conditions indicated.

1. Design Loads: As indicated.

2. Deflection Limits: Design framing systems to withstand design loads withoutdeflections greater than the following:

a. Interior Load-Bearing Wall Framing: Horizontal deflection of 1/360 of thewall height under a horizontal load of 5 lbf/sq. ft.

b. Floor Joist Framing: Vertical deflection of 1/480 for live loads and l/360 fortotal loads of the span.

c. Ceiling Joist Framing: Vertical deflection of 1/240 of the span.d. Trusses: Vertical deflectionof 1/360 of the span.

3. Design framing systems to provide for movement of framing members withoutdamage or overstressing, sheathing failure, connection failure, undue strain onfasteners and anchors, or other detrimental effects when subject to a maximumambient temperature change of 120 deg F.

4. Design framing system to maintain clearances at openings, to allow forconstruction tolerances, and to accommodate live load deflection of primarybuilding structure as follows:


a. Upward and downward movement of 3/4 inch.

B. Cold-Formed Steel Framing, General: Design according to AISI's "Standard for Cold-Formed Steel Framing - General Provisions."

1. Headers: Design according to AISI's "Standard for Cold-Formed Steel Framing -Header Design."

2. Design exterior non-load-bearing wall framing to accommodate horizontaldeflection without regard for contribution of sheathing materials.

1.4 SUBMITTALS

A. Product Data: For each type of cold-formed metal framing product and accessoryindicated.

B. Shop Drawings: Show layout, spacings, sizes, thicknesses, and types of cold-formedmetal framing and trusses; fabrication; and fastening and anchorage details, includingmechanical fasteners. Show reinforcing channels, opening framing, supplementalframing, strapping, bracing, bridging, splices, accessories, connection details, andattachment to adjoining work.

1. For cold-formed metal framing and trusses indicated to comply with design loads,include structural analysis data signed and sealed by the qualified professionalengineer responsible for their preparation.

C. Welding certificates.

D. Qualification Data: For professional engineer and testing agency.

E. Product Test Reports: From a qualified testing agency, unless otherwise stated,indicating that each of the following complies with requirements, based on evaluation ofcomprehensive tests for current products:

1. Steel sheet.2. Expansion anchors.3. Power-actuated anchors.4. Mechanical fasteners.5. Vertical deflection clips.6. Horizontal drift deflection clips7. Miscellaneous structural clips and accessories.

F. Research/Evaluation Reports: For cold-formed metal framing.


A. Engineering Responsibility: Preparation of Shop Drawings, design calculations, andother structural data by a qualified professional engineer.

B. Professional Engineer Qualifications: A professional engineer who is legally qualifiedto practice in jurisdiction where Project is located and who is experienced in providingengineering services of the kind indicated. Engineering services are defined as those


performed for installations of cold-formed metal framing that are similar to thoseindicated for this Project in material, design, and extent.

C. Testing Agency Qualifications: An independent testing agency, acceptable toauthorities having jurisdiction, qualified according to ASTM E 329 to conduct the testingindicated.

D. Product Tests: Mill certificates or data from a qualified independent testing agencyindicating steel sheet complies with requirements, including base-metal thickness, yieldstrength, tensile strength, total elongation, chemical requirements, ductility, andmetallic-coating thickness.

E. Welding: Qualify procedures and personnel according to AWS D1.1/D1.1M, "StructuralWelding Code--Steel," and AWS D1.3, "Structural Welding Code--Sheet Steel."

F. Fire-Test-Response Characteristics: Where indicated, provide cold-formed metalframing identical to that of assemblies tested for fire resistance per ASTM E 119 by atesting and inspecting agency acceptable to authorities having jurisdiction.

G. AISI Specifications and Standards: Comply with AISI's "North American Specificationfor the Design of Cold-Formed Steel Structural Members" and its "Standard for Cold-Formed Steel Framing - General Provisions."

1. Comply with AISI's "Standard for Cold-Formed Steel Framing – Header Design."

H. Comply with AISI's "Standard for Cold-Formed Steel Framing - Prescriptive Method forOne and Two Family Dwellings."

I. Preinstallation Conference: Conduct conference at Project site to comply withrequirements in Division 01 Section "Project Management and Coordination."


A. Protect cold-formed metal framing from corrosion, deformation, and other damageduring delivery, storage, and handling.

B. Store cold-formed metal framing, protect with a waterproof covering, and ventilate toavoid condensation.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Manufacturers: Subject to compliance with requirements, provide cold-formed metalframing and trusses by one of the following:

1. AllSteel Products, Inc.2. Clark Steel Framing.3. Custom Stud, Inc.4. Dietrich Metal Framing; a Worthington Industries Company.5. MarinoWare; a division of Ware Industries.


6. SCAFCO Corporation7. The Steel Network, Inc.8. United Metal Products, Inc.9. All-Span, Inc.10. Aegis Metal Framing11. ITW Building Components Group, Alpine Trussteel.

2.2 MATERIALS

A. Recycled Content of Steel Products: Provide products with an average recycledcontent of steel products so postconsumer recycled content plus one-half ofpreconsumer recycled content is not less than 25 percent.

B. Steel Sheet: ASTM A 1003/A 1003M, Structural Grade, Type H, metallic coated, ofgrade and coating weight as follows:

1. Grade: As required by structural performance.2. Coating: G90 for all exterior wall framing, G60 or equivalent elsewhere.

C. Steel Sheet for Vertical Deflection and Drift Clips: ASTM A 653/A 653M, structuralsteel, zinc coated, of grade and coating as follows:

1. Grade: As required by structural performance.2. Coating: G90.

2.3 FRAMING ACCESSORIES

A. Fabricate steel-framing accessories from steel sheet, ASTM A 1003/A 1003M,Structural Grade, Type H, metallic coated, of same grade and coating weight used forframing members.

B. Provide accessories of manufacturer's standard thickness and configuration, unlessotherwise indicated, as follows:

1. Supplementary framing.2. Bracing, bridging, and solid blocking.3. Web stiffeners.4. Anchor clips.5. End clips.6. Foundation clips.7. Gusset plates.8. Stud kickers, knee braces, and girts.9. Joist hangers and end closures.10. Hole reinforcing plates.11. Backer plates.

2.4 ANCHORS, CLIPS, AND FASTENERS

A. Steel Shapes and Clips: ASTM A 36/A 36M, zinc coated by hot-dip process accordingto ASTM A 123/A 123M.


B. Expansion Anchors: Fabricated from corrosion-resistant materials, with capability tosustain, without failure, a load equal to 5 times design load, as determined by testingper ASTM E 488 conducted by a qualified independent testing agency.

C. Power-Actuated Anchors: Fastener system of type suitable for application indicated,fabricated from corrosion-resistant materials, with capability to sustain, without failure,a load equal to 10 times design load, as determined by testing per ASTM E 1190conducted by a qualified independent testing agency.

D. Mechanical Fasteners: ASTM C 1513, corrosion-resistant-coated, self-drilling, self-tapping steel drill screws.

1. Head Type: Low-profile head beneath sheathing, manufacturer's standardelsewhere.

E. Welding Electrodes: Comply with AWS standards.

2.5 MISCELLANEOUS MATERIALS

A. Galvanizing Repair Paint: SSPC-Paint 20 or DOD-P-21035 and/or ASTM A 780.

B. Nonmetallic, Nonshrink Grout: Premixed, nonmetallic, noncorrosive, nonstaining groutcontaining selected silica sands, portland cement, shrinkage-compensating agents,and plasticizing and water-reducing agents, complying with ASTM C 1107, with fluidconsistency and 30-minute working time.

C. Shims: Load bearing, high-density multimonomer plastic, nonleaching.

D. Sealer Gaskets: Closed-cell neoprene foam, 1/4 inch thick, selected frommanufacturer's standard widths to match width of bottom track or rim track members.

2.6 FABRICATION

A. Fabricate cold-formed metal framing and accessories plumb, square, and true to line,and with connections securely fastened, according to referenced AISI's specificationsand standards, manufacturer's written instructions, and requirements in this Section.

1. Fabricate framing assemblies using jigs or templates.2. Cut framing members by sawing or shearing; do not torch cut.3. Fasten cold-formed metal framing members by welding, screw fastening, clinch

fastening, or riveting as standard with fabricator. Wire tying of framing membersis not permitted.

a. Comply with AWS D1.3 requirements and procedures for welding,appearance and quality of welds, and methods used in correcting weldingwork.

b. Locate mechanical fasteners and install according to Shop Drawings, withscrew penetrating joined members by not less than three exposed screwthreads.

4. Fasten other materials to cold-formed metal framing by welding, bolting, or screwfastening, according to Shop Drawings.


B. Reinforce, stiffen, and brace framing assemblies to withstand handling, delivery, anderection stresses. Lift fabricated assemblies to prevent damage or permanentdistortion.

C. Fabrication Tolerances: Fabricate assemblies level, plumb, and true to line to amaximum allowable tolerance variation of 1/8 inch in 10 feet and as follows:

1. Spacing: Space individual framing members no more than plus or minus 1/8 inchfrom plan location. Cumulative error shall not exceed minimum fasteningrequirements of sheathing or other finishing materials.

2. Squareness: Fabricate each cold-formed metal framing assembly to a maximumout-of-square tolerance of 1/8 inch.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine supporting substrates and abutting structural framing for compliance withrequirements for installation tolerances and other conditions affecting performance.

1. Proceed with installation only after unsatisfactory conditions have beencorrected.

3.2 PREPARATION

A. Before sprayed fire-resistive materials are applied, attach continuous angles,supplementary framing, or tracks to structural members indicated to receive sprayedfire-resistive materials.

B. After applying sprayed fire-resistive materials, remove only as much of these materialsas needed to complete installation of cold-formed framing without reducing thickness offire-resistive materials below that are required to obtain fire-resistance rating indicated.Protect remaining fire-resistive materials from damage.

C. Install load bearing shims or grout between the underside of wall bottom track or rimtrack and the top of foundation wall or slab at stud or joist locations to ensure a uniformbearing surface on supporting concrete or masonry construction.

D. Install sealer gaskets to isolate the underside of wall bottom track or rim track and thetop of foundation wall or slab at stud or joist locations.


A. Cold-formed metal framing may be shop or field fabricated for installation, or it may befield assembled.

B. Install cold-formed metal framing according to AISI's "Standard for Cold-Formed SteelFraming - General Provisions" and to manufacturer's written instructions unless morestringent requirements are indicated.


C. Install shop- or field-fabricated, cold-formed framing and securely anchor to supportingstructure.

1. Screw, bolt, or weld wall panels at horizontal and vertical junctures to produceflush, even, true-to-line joints with maximum variation in plane and true positionbetween fabricated panels not exceeding 1/16 inch.

D. Install cold-formed metal framing and accessories plumb, square, and true to line, andwith connections securely fastened.

1. Cut framing members by sawing or shearing; do not torch cut.2. Fasten cold-formed metal framing members by welding, screw fastening, clinch

fastening, or riveting. Wire tying of framing members is not permitted.

a. Comply with AWS D1.3 requirements and procedures for welding,appearance and quality of welds, and methods used in correcting weldingwork.

b. Locate mechanical fasteners and install according to Shop Drawings, andcomplying with requirements for spacing, edge distances, and screwpenetration.

E. Install framing members in one-piece lengths unless splice connections are indicatedfor track or tension members.

F. Install temporary bracing and supports to secure framing and support loadscomparable in intensity to those for which structure was designed. Maintain bracesand supports in place, undisturbed, until entire integrated supporting structure hasbeen completed and permanent connections to framing are secured.

G. Do not bridge building expansion and control joints with cold-formed metal framing.Independently frame both sides of joints.

H. Install insulation, specified in Division 07 Section "Thermal Insulation," in built-upexterior framing members, such as headers, sills, boxed joists, and multiple studs atopenings, that are inaccessible on completion of framing work.

I. Fasten hole reinforcing plate over web penetrations that exceed size of manufacturer'sstandard punched openings.

J. Erection Tolerances: Install cold-formed metal framing level, plumb, and true to line toa maximum allowable tolerance variation of 1/8 inch in 10 feet and as follows:

1. Space individual framing members no more than plus or minus 1/8 inch from planlocation. Cumulative error shall not exceed minimum fastening requirements ofsheathing or other finishing materials.

K. Installation, Trusses:

1. Install trusses in accordance with manufacturer’s instructions.2. Make provisions for erection stresses. Provide temporary alignment and bracing.3. Place trusses at spacing indicated on drawings. Connect trusses using fasteners

as designed by the manufacturer.4. Provide and design permanent bracing and bridging.


5. Touch-up field welds and damaged galvanizing with zinc-rich primer.


A. Testing: Owner will engage a qualified independent testing and inspecting agency toperform field tests and inspections and prepare test reports.

B. Field and shop welds will be subject to testing and inspecting.

C. Testing agency will report test results promptly and in writing to Contractor andArchitect.

D. Remove and replace work where test results indicate that it does not comply withspecified requirements.

E. Additional testing and inspecting, at Contractor's expense, will be performed todetermine compliance of replaced or additional work with specified requirements.


A. Galvanizing Repairs: Prepare and repair damaged galvanized coatings on fabricatedand installed cold-formed metal framing with galvanized repair paint according toASTM A 780 and manufacturer's written instructions.

B. Provide final protection and maintain conditions, in a manner acceptable tomanufacturer and Installer, that ensure that cold-formed metal framing is withoutdamage or deterioration at time of Substantial Completion.

END OF SECTION

Juniata County School District 05500-1East Juniata High School Industrial Arts Addition METAL FABRICATIONS

SECTION 05500 - METAL FABRICATIONS

PART 1 - GENERAL


A. Drawings and general provisions of the Contract, including General andSupplementary Conditions and Division 1 Specification Sections, apply to thisSection.

1.2 SUMMARY

A. This Section includes the following, but is not limited to:

1. Steel framing supports for mechanical rooftop equipment.2. Steel angle bracing for stability of interior partitions and bulkheads.3. Steel elements fabricated from iron and steel shapes, plates, bars, strips,

tubes, and pipes which are not a part of the structural steel frame work in othersections of these specifications.

4. Fasteners for connecting metal elements within this Section.5. Protective primer paint and coatings for metal elements within this Section.6. Grout for installation of metal elements within this Section.


1. Division 3 Section, "Cast-In-Place Concrete" for installing anchor bolts, wedge-type inserts and other items indicated to be cast into concrete.

2. Division 4, Section, “Unit Masonry Assemblies” for installing loose lintels,anchor bolts, and other items indicated to be built into unit masonry.

3. Division 5, Section, “Structural Steel”.4. Division 9, Section, “Painting”.

1.3 SUBMITTALS

A. Product Data: Submit the following for review:

1. Paint products. Also provide a copy to painter who will be applying painttopcoat.

2. Grout.3. Nonslip aggregates and nonslip-aggregate surface finishes.

B. Shop Drawings: Detail fabrication and erection of each metal fabrication indicated.Include plans, elevations, sections, and details of metal fabrications and theirconnections. Show anchorage and accessory items.

1. Provide setting diagrams, or templates for anchors and bolts which are to beembedded in concrete or masonry.

C. Welding Certificates: Copies of certificates for welding personnel must be availableat Project site for review by Architect.



A. Fabricator Qualifications: A firm experienced in producing metal fabrications similarto those indicated for this Project and with a record of successful in-serviceperformance, as well as sufficient production capacity to produce required units.

B. Welding: Qualify procedures and personnel according to the following:

1. AWS D1.1-92, "Structural Welding Code--Steel”.2. Certify that each welder has satisfactorily passed AWS qualification tests for

welding processes involved and, if pertinent, has undergone recertification.

1.5 PROJECT CONDITIONS

A. Field Measurements: Verify actual locations of walls and other constructioncontiguous with metal fabrications by field measurements before fabrication andindicate measurements on Shop Drawings.

1. Established Dimensions: Where field measurements cannot be made withoutdelaying the Work, establish dimensions and proceed with fabricating metalfabrications without field measurements. Coordinate wall and other contiguousconstruction to ensure that actual dimensions correspond to establisheddimensions.

2. Provide allowance for trimming and fitting at site.

1.6 DELIVERY AND COORDINATION

A. Coordinate installation of anchorages for metal fabrications. Furnish settingdrawings, templates, and directions for installing anchorages, including sleeves,concrete inserts, anchor bolts, and items with integral anchors, that are to beembedded in concrete or masonry. Deliver such items to Project site in time forinstallation.

B. Deliver fabrications to the project site and store to avoid damage.

C. Identify pieces with suitable mark for easy location.

D. Deliver products in their original wrappings or cartons clearly marked for identificationand bearing manufacturer's name, and model or part number, if applicable. Store toavoid damage.

PART 2 - PRODUCTS

2.1 METALS, GENERAL

A. Metal Surfaces, General: For metal fabrications exposed to view in the completedWork, provide materials with smooth, flat surfaces without blemishes. Do not usematerials with exposed pitting, seam marks, roller marks, rolled trade names, orroughness.


2.2 FERROUS METALS

A. Steel Plates, Shapes, and Bars: ASTM A 36/A 36M, except all wide flange and WTshapes shall conform to ASTM A992/A572, Grade 50.

B. Cold-finished steel bars: ASTM A 108.

C. Checkered Plate: ASTM A 786, rolled from plate complying with ASTM A 36 orASTM A283, Grade C or D.

D. Steel Tubing: Cold-formed steel tubing complying with ASTM A 500, or hot-rolledASTM A 501.

E. Steel Pipe: ASTM A 53, standard weight (Schedule 40), unless another weight isindicated or required by structural loads; welded or seamless; uncoated or hot-dippedgalvanized as indicated on Contract Drawings.

F. Welding Rods and Bare Electrodes: Select according to AWS specifications formetal alloy welded.

2.3 PAINT

A. Shop Primer for Ferrous Metal: Fast-curing, lead- and chromate-free, universalmodified-alkyd primer complying with performance requirements in FS TT-P-664;selected for good resistance to normal atmospheric corrosion, compatibility with finishpaint systems indicated, and capability to provide a sound foundation for field-appliedtopcoats despite prolonged exposure.

B. Bituminous Paint: Cold-applied asphalt mastic complying with SSPC-Paint 12,except containing no asbestos fibers, or cold-applied asphalt emulsion complyingwith ASTM D 1187.

C. Shop Primer for Galvanized Metal: Factory-formulated galvanized metal primer forexterior application.

1. ICI Dulux Paints; 4160-XXXX Devguard Multi-purpose Tank and StructuralPrimer.

2. Kelly-Moore: 1722 Kel-Guard Acrylic Galvanized Iron Primer.3. MAB Paints: Rust-O-Lastic Hydro-Prime II Acrylic (DTM) Maintenance Primer

073-189.4. Pittsburgh Paints: 90-709 Pitt-Tech One Pack Interior/Exterior Primer/Finish

DTM Industrial Enamel.5. Sherwin Williams: Galvite HS Paint B50WZ3.

2.4 FASTENERS

A. Machine Screws: ASME B18.6.3.

B. Lag Bolts: ASME B18.2.1.

C. Wood Screws: Flat head, carbon steel, ASME B18.6.1.

D. Plain Washers: Round, carbon steel, ASME B18.22.1.


E. Lock Washers: Helical, spring type, carbon steel, ASME B18.21.1.

F. Expansion Anchors: Anchor bolt and sleeve assembly of material indicated belowwith capability to sustain, without failure, a load equal to six times the load imposedwhen installed in unit masonry and equal to four times the load imposed wheninstalled in concrete, as determined by testing per ASTM E 488, conducted by aqualified independent testing agency.

1. Material: Carbon-steel components zinc-plated to comply with ASTM B 633,Class Fe/Zn 5.

G. Toggle Bolts: FS FF-B-588, tumble-wing type, class and style as needed.

2.5 GROUT

A. Nonshrink, Nonmetallic Grout: Factory-packaged, nonstaining, noncorrosive,nongaseous grout complying with ASTM C 1107. Provide grout specificallyrecommended by manufacturer for interior and exterior applications.

2.6 FABRICATION, GENERAL

A. Shop Assembly: Preassemble items in shop to greatest extent possible to minimizefield splicing and assembly. Disassemble units only as necessary for shipping andhandling limitations. Use connections that maintain structural value of joined pieces.Clearly mark units for reassembly and coordinated installation.

B. Shear and punch metals cleanly and accurately. Remove burrs.

C. Ease exposed edges to a radius of approximately 1/32 inch, unless otherwiseindicated. Form bent-metal corners to smallest radius possible without causing grainseparation or otherwise impairing work.

D. Weld corners and seams continuously to comply with the following:

1. Use materials and methods that minimize distortion and develop strength andcorrosion resistance of base metals.

2. Obtain fusion without undercut or overlap.3. Remove welding flux immediately.4. At exposed connections, finish exposed welds and surfaces smooth and

blended so no roughness shows after finishing and contour of welded surfacematches that of adjacent surface.

E. Provide for anchorage of type indicated; coordinate with supporting structure.Fabricate and space-anchoring devices to secure metal fabrications rigidly in placeand to support indicated loads.

F. Cut, reinforce, drill, and tap metal fabrications as indicated to receive finish hardware,screws, and similar items.

G. Fabricate joints that will be exposed to weather in a manner to exclude water, orprovide weep holes where water may accumulate.


H. Form exposed work true to line and level with accurate angles and surfaces andstraight sharp edges.

I. Remove sharp or rough areas on exposed traffic surfaces.

J. Form exposed connections with hairline joints, flush and smooth, using concealedfasteners where possible. Use exposed fasteners of type indicated or, if notindicated, Phillips flat-head (countersunk) screws or bolts. Locate joints where leastconspicuous.

2.7 MISCELLANEOUS FRAMING AND SUPPORTS

A. General: Provide steel framing and supports that are not a part of structural-steelframework as necessary to complete the Work.

B. Fabricate units from structural-steel shapes, plates, and bars of welded construction,unless otherwise indicated. Fabricate to sizes, shapes, and profiles indicated and asnecessary to receive adjacent construction retained by framing and supports. Cut,drill, and tap units to receive hardware, hangers, and similar items.

1. Where units are indicated to be cast into concrete or built into masonry, equipwith integrally welded steel strap anchors 1-1/4 inches wide by 1/4 inch thick by8 inches long at 24 inches o.c., unless otherwise indicated.

2. Furnish inserts if units must be installed after concrete is placed.

C. Galvanize miscellaneous framing and supports where indicated.

2.8 MISCELLANEOUS STEEL TRIM

A. Unless otherwise indicated, fabricate units from structural-steel shapes, plates, andbars of profiles shown with continuously welded joints, and smooth exposed edges.Miter corners and use concealed field splices where possible.

B. Provide cutouts, fittings, and anchorages as needed to coordinate assembly andinstallation with other work. Provide anchors, welded to trim, when members will beembedded in concrete or masonry construction, spaced not more than 6 inches fromeach end, 6 inches from corners, and 24 inches o.c., unless otherwise indicated.

2.9 LOOSE STEEL LINTELS

A. Fabricate loose steel lintels from steel angles and shapes of size indicated foropenings and recesses in masonry walls and partitions at locations indicated. Weldadjoining members together to form a single unit where indicated.

B. Size loose lintels to provide bearing length at each side of openings equal 10 1/12 ofclear span but not less than 8 inches, unless otherwise indicated.

C. Galvanize loose steel lintels located in exterior walls.

D. Prime loose steel lintels located in exterior walls with zinc-rich primer.


2.10 FINISHES, GENERAL

A. Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal Products"for recommendations for applying and designating finishes.

B. Finish metal fabrications after assembly.

2.11 STEEL FINISHES

A. Galvanizing: Hot-dip galvanize items where indicated to comply with applicablestandard listed below:

1. ASTM A 123, for galvanizing steel and iron products.2. ASTM A 153/A 153M, for galvanizing steel and iron hardware.

B. Preparation for Shop Priming: Prepare uncoated ferrous-metal surfaces to complywith minimum requirements indicated below for SSPC surface-preparationspecifications and environmental exposure conditions of installed metal fabrications:

1. Exteriors (SSPC Zone 1A): SSPC-SP3 , "Power Tool Cleaning”.

2. Interiors (SSPC Zone 1A): SSPC-SP3 , "Power Tool Cleaning”.

C. Apply shop primer to uncoated surfaces of metal fabrications, except those to receivesprayed-on fireproofing unless otherwise indicated. Comply with SSPC-PA 1, "PaintApplication Specification No. 1”, for shop painting. Apply primer to obtain a dry filmthickness of 2.0 mils.

1. Stripe paint corners, crevices, bolts, welds, and sharp edges.

D. Painting Galvanized Metal: When galvanized metal is indicated to receive paint onthe Contract Drawings, apply primer to galvanized surfaces producing a minimum dryfilm thickness of 2.0 mils.

E. Bituminous Paint: Paint metal elements which are to be in contact with but not fullyembedded in concrete with a heavy coat of bituminous paint. Apply bituminous paintto dissimilar metals which are or will be in contact with one another. Coating shall notextend onto surfaces which will be exposed in the final structure.

PART 3 - EXECUTION


A. Fastening to In-Place Construction: Provide anchorage devices and fasteners wherenecessary for securing metal fabrications to in-place construction. Include threadedfasteners for concrete and masonry inserts, toggle bolts, through-bolts, lag bolts,wood screws, and other connectors.

B. Cutting, Fitting, and Placement: Perform cutting, drilling, and fitting required forinstalling metal fabrications. Set metal fabrications accurately in location, alignment,and elevation; with edges and surfaces level, plumb, true, and free of rack; andmeasured from established lines and levels.


C. Provide temporary bracing or anchors in formwork for items that are to be built intoconcrete, masonry, or similar construction.

D. Fit exposed connections accurately together to form hairline joints. Weldconnections that are not to be left as exposed joints but cannot be shop weldedbecause of shipping size limitations. Do not weld, cut, or abrade surfaces of exteriorunits that have been hot-dip galvanized after fabrication and are for bolted orscrewed field connections.

E. Field Welding: Comply with the following requirements:

1. Use materials and methods that minimize distortion and develop strength andcorrosion resistance of base metals.

2. Obtain fusion without undercut or overlap.3. Remove welding flux immediately.4. At exposed connections, finish exposed welds and surfaces smooth and

blended so no roughness shows after finishing and contour of welded surfacematches that of adjacent surface.

3.2 INSTALLING MISCELLANEOUS FRAMING AND SUPPORTS

A. General: Install framing and supports to comply with requirements of items beingsupported, including manufacturers' written instructions and requirements indicatedon Shop Drawings, if any.

3.3 ADJUSTING AND CLEANING

A. Touchup Painting: Immediately after erection, clean bolted connections, field welds,and abraded areas of shop paint, and paint exposed areas with the same material asused for shop painting to comply with SSPC-PA 1 for touching up shop-paintedsurfaces. Completely remove slag and flux from field welds.

1. Apply by brush or spray to provide a minimum 2.0-mil dry film thickness.

B. Galvanized Surfaces: Clean abraded areas and repair galvanizing to comply withASTM A 780.

END OF SECTION

Juniata County School District 05510-1East Juniata High School Industrial Arts Addition METAL ALTERNATING TREAD STAIR

SECTION 05510 – METAL ALTERNATING TREAD STAIR

PART 1 - GENERAL

1.1.1 SCOPE OF WORK

Fabricate and Install metal alternating tread stair assemblies in accordance with therequirements set forth in this section.

1.2 RELATED DOCUMENTS:

Drawings and general provisions of Contract, including General and SupplementaryConditions and Division-1 Specification sections, apply to work of this section.

1.3 SUMMARY:

A. Provide all material, labor, equipment and services and perform all operations necessaryor required for the work of this section, in accordance with the Drawings andSpecifications, and including fabrication and installation of alternating tread steel stairs.

1.4 PERFORMANCE REQUIREMENTS:

A. Alternating Tread Stair Treads: shall be capable of withstanding a single concentrated1000 pound load without permanent deformation; or 100 pounds per square foot or 300pounds on an area of 4 square inches without exceeding the allowable working stress ofthe material.

B. Alternating Tread Stair Guard/Handrail: shall be capable of withstanding a singleconcentrated load of 200 pounds or a uniform load of 50 pounds per linear foot appliedin any direction at any point on the rail without exceeding the allowable working stress ofthe material.

C. Alternating Tread Stair Stringers: shall be capable of withstanding a single concentratedload of 1000 pounds at any point on the stair without permanent deformation; or auniform live loading of 100 pounds per square foot applied in a downward direction to alltread surfaces or a 300 pound load on an area of 4 square inches without exceeding theallowable working stress of the material.

1.5 CONSTRUCTION REQUIREMENTS:

A. Landings, Treads, and Mounting Base: shall be stamped and formed from single piecematerial. Stock shapes, hand forming, or welded remnants shall not be permitted. Allstamped parts shall have integrally formed rigidizing bends and shall be spot welded tostringers of like material.

B. Welds: shall be a minimum of 6 welds per tread, and 12 welds each on the landing andmounting base. Each weld shall be quality controlled and be capable of withstanding aminimum of 2800 lbs. in shear.


C. Pedestrian Surfaces: shall be punched through with upset non-skid openings.

D. Riser Spacing: shall be equally spaced to within 3/16" for adjacent risers and to within3/8" for any two non-adjacent risers on a stair.

E. Guards and Handrails: shall be contoured for body guidance and underarm support andshall be attached to the outside stringers and landings by bolting.

F. Landing Reinforcement: shall be with 1/4" steel angle notched and punched and factorywelded to the landing at the points of a guard or handrail attachment.

G. Rubber Foot Divider: shall be affixed to the central portion of the landing. A rubberbumper strip shall be attached or will be provided for field attaching to the centralstringer.

1.6 DIMENSIONS:

A. Alternating Tread Stair Angle: 56 degrees from horizontal as specified in the drawings.

B. Vertical Drop: the change in elevation, as shown in the drawings, between the upperfinished floor surface where the top landing will be attached and the lower finished floorsurface where the base of the alternating tread stair will be secured.

1.7 SUBMITTALS:

Dimensional Prints: shall be submitted for approval prior to fabrication.

1.8 DELIVERY STORAGE AND HANDLING

A. Deliver materials to the job-site in good condition and properly protected againstdamage to finished surfaces.

A. Store material in a location and manner to avoid damage. Do not stack components.Lay out components on firm foundation material such that bending can not occur.

B. Store metal components in a clean dry location, away from uncured concrete, cement,or masonry products, acids, oxidizers, rain water, or any other chemical or substancethat might damage the material or finish.

C. Plan work and storage locations to keep on-site handling to a minimum.D. Exercise particular care to avoid damage to material finishes or unprotected surfaces

when handling.

PART 2 - PRODUCTS

2.1 ACCEPTABLE MANUFACTURERS:

A. Lapeyre Stair, Inc.5117 Toler St.Harahan, LA. 70123;1-(800)-535-7631

B. Equal substitutions will be considered.


2.2 MATERIALS:

A. Carbon Steel:1. Treads: 13 Gauge AISI 1010/15 HRPO per ASTM A569 / A1011 grade 36 (or

higher).2. Landing & Foot Stampings: 11 Gauge AISI 1010/15 per ASTM A569 / A1011 grade

36 (or higher). 3. Top Landing Support Clips: L2 x 2 x ¼” x 4” lg. with 5/8” Φ round holes and 5/8” x 1”

slot holes, ASTM A569/A1011 grade 36 (or higher)4. Stringers:

a. 3" x 1 3/4" x 11 Gauge U section; AISI 1010/15 per ASTM A569/A1011 grade 36or higher.

5. Handrails: 1 1/2" OD x 0.083" AISI 1010/15 CS per ASTM A569/A1011 cold drawn,fully annealed tube per ASTM A513 grade 1008 or higher As-welded tubing or ASTMA500 Grade B..

A. Fastenersa. Bolts: handrail to stringer; Hex Head SAE J429 Grade 5, ½” Φ x 13 TPI

Landing to structure; Carriage Head A307 or Hex Head SAE J429 Grade 5, ½” Φ x 13 TPI

b. Nuts: ASTM A563 Grade 0c. Washers ASTM F844

D. Miscellaneous Material:1. Rubber Spine: Hollow neoprene2. Rubber Foot Divider: Solid neoprene

2.3 FINISHES:

A. Carbon Steel:1. Gray Primer: Powder Coat Baked Enamel

2.4 FABRICATION:

General: Fabricate alternating tread steel stairs to conform with performance andconstruction requirements, and in accordance with approved shop drawings ordimensional prints. Fabricate and shop-assemble to greatest extent possible.

A. Carbon Steel: gas metal arc welded with treads spot welded to stringers and bolt-onhandrails with included bolts using the specified materials.

PART 3 - EXECUTION:

3.1 PREPARATIONS:

A. Coordination: Coordinate start and installation of steel alternating tread stair with allother related and adjacent work. Installation shall not start until the construction hasprogressed to the point that weather conditions and remaining construction operationswill not damage alternating tread stair installation.


B. Verification: Verify that dimensions and angle are correct and that substrate is in propercondition for alternating tread stair installation. Do not proceed with installation until allnecessary corrections have been made.

3.2 INSTALLATION:

A. If bumper has not been installed at the factory, install the bumper in accordance with themanufacturer's instructions using glue supplied with the alternating tread stair.

B. Prepare mounting holes.

C. Position alternating tread stair with top tread at same elevation as upper finished floor orroof surface.

D. Secure alternating tread stair with not less than 2 bolts or studs at top and with not lessthan 2 at bottom of stair.

E. Touch up with matching paint any chipped or abraded damage to factory finish or

Juniata County School District 05520-1East Juniata High School Industrial Arts Addition HANDRAILS AND RAILINGS

SECTION 05520 – HANDRAILS AND RAILINGS

PART 1 GENERAL


A. The provisions of the General Conditions, Supplementary Conditions, andthe

Sections included under Division 1, General Requirements, are included asa part of this Section as though bound herein.

1.2 SUMMARY

A. Provide labor, materials, services, and equipment necessary for completeinstallation of the following items:1. Steel handrails and railings.2. Aluminum handrails and railings.

B. Related Work Specified Elsewhere1. Section 03300 - Cast-in-Place Concrete: For post-installed anchors.2. Section 04080 - Masonry Accessories: For post-installed anchors.3. Section 09910 - Paints.

1.3 SYSTEM DESCRIPTION

A. General: In engineering handrail and railing systems to withstand structuralloads indicated, determine allowable design working stresses of railingmaterials based on the following:1. Cold-Formed Structural Steel: AISI SG-673, Part I, "Specification for

the design of Cold-Formed Steel Structural Members."2. Aluminum: AA 30, "Specifications for Aluminum Structures."

B. Loads on handrails and guardrails: All required handrails and guardrailsshall be designed and constructed to the structural loading conditions inSection 4.4 of ASCE 7 — 95: Minimum Design Loads for Buildings and OtherStructures.

1.4 SUBMITTALS

A. Product data for mechanically connected handrails and railing systems,each kind of fitting, grout, anchoring cement, and paint products

B. Shop drawings showing fabrication and installation of handrails andrailing systems including plans, elevations sections, details ofcomponents, and attachments to other units of work.

1. For installed handrails and railings indicated to comply withdesign loads, include structural analysis data signed andsealed by the qualified professional engineer responsible fortheir preparation.



A. Engineer Qualifications: Professional engineer legally authorized topractice in the jurisdiction where Project is located andexperienced in providing engineering services of the kind indicatedfor handrails and railing systems similar to this Project in material,design, and extent, and that have a record of successful in-service performance.

1.6 STORAGE

A. Store handrails and railings in a dry, well ventilated, weather tightplace.

1.7 PROJECT CONDITIONS

A. Field Measurements: Where handrails and railing systems areindicated to fit to other construction, check actual dimensions of otherconstruction by accurate field measurements on final shop drawings.Coordinate fabrication schedule with construction progress to avoiddelaying the Work.

1.8 COORDINATION

A. Coordinate installation of anchorages for handrails and railings.Furnish setting drawings, templates, and directions for installinganchorages, including sleeves, concrete inserts, anchor bolts,and items with integral anchors, that are to be embedded inconcrete or masonry. Deliver such items to project site in time forinstallation.

1.9 SEQUENCING AND SCHEDULING

A. Mount handrails only on completed walls. Do not support handrailstemporarily by any means not satisfying structural performancerequirements.

B. Mount handrails on plaster or gypsum board assemblies only wherereinforced to receive anchors and where the location of concealedreinforcements has been clearly marked for benefit of Installer.

PART 2 PRODUCTS

2.01 METALS

A. General: Provide metal free from pitting, seam marks, rollermarks, stains, discolorations, and other imperfections where exposed toview on finished units.

B. Steel and Iron: Provide steel and iron in the form indicated, complyingwith the following requirements:1. Steel Pipe: ASTM A 53; finish, type, and weight class as follows:

a. Black finish, unless otherwise indicated.b. Galvanized finish for exterior installations and where indicated.c. Type F or Type S, Grade A, standard weight (Schedule 40),

unless another grade and weight are required by structuralloads.


2. Steel Tubing: Cold-formed steel tubing, ASTM A 500, Grade A,unless another grade is required by structural loads.

3. Steel Plates, Shapes, and Bars: ASTM A 36.4. Iron Castings: Gray iron complying with ASTM A 48, Class 30.

C. Aluminum: Alloy and temper recommended by aluminum producer andfinisher for type of use and finish indicated, and with not less than thestrength and durability properties of alloy and temper designated below foreach aluminum form required.1. Extruded Bar and Tube: ASTM B 221 (ASTM B 221M), alloy 6063-T51

T52.2. Plate and Sheet ASTM B 209 (ASTM B 209M), alloy 6061-T6.3. Die and Hand Forgings: ASTM B 247 (ASTM B 247M), alloy 6061-T6.4. Castings: ASTM B 26/B 26M, alloy A356-T6.

D. Brackets, Flanges, and Anchors: Cast or formed metal of same type ofmaterial and finish as supported rails, unless otherwise indicated.

2.02 GROUT AND ANCHORING CEMENT

A. Nonshrink, Nonmetallic Grout: Premixed, factory-packaged, nonstaining,Noncorrosive, nongaseous grout complying with ASTM C 1107. Providegrout specifically recommended by manufacturer for interior and exteriorapplications of type specified in this Section.

B. Erosion Resistant Anchoring Cement: Factory-packaged, nonshrink,nonstaining, hydraulic controlled expansion cement formulation for mixingwith water at Project site to create pourable anchoring, patching, andgrouting compound. Provide formulation that is resistant to erosionfrom water exposure without need for protection by a sealer orwaterproof crating and is recommended for exterior use by manufacturer.1. Product shall be Super Par-Rok; Minwax Construction Products Division.

2,03 WELDING MATERIALS. FASTENERS, AND ANCHORS

A. Welding Electrodes and Filler Metal: Provide type and alloy offiller metal and electrodes as recommended by producer of metal tobe welded and as required for color match, strength, and compatibilityin fabricated items.

B. Fasteners for Anchoring Handrails and Railings to OtherConstruction: Select fasteners of type, grade, and class requiredto produce connections suitable for anchoring handrails andrailings to other types of construction indicated and capable ofwithstanding design loads.1. For steel handrails, railings, and fittings, use plated fasteners

complying with ASTM B 633, Class Fe/Zn 25 forelectrodeposited zinc coating.

2. For aluminum handrails and railings, use fasteners fabricatedfrom Type 304 or Type 316 stainless steel.

3. For stainless steel handrails and railings, use fastenersfabricated from Type 304 or Type 316 stainless steel.

C. Fasteners for Interconnecting Handrail and Railing Components:Use fasteners fabricated from same basic metal as fastened metal,unless otherise indicated. Do not use metals that are corrosive orincompatible with materials joined. Provide concealed fastenersfor interconnecting handrail and railing components and for


attaching them to other work, unless otherewise indicated. Cast-In-Place Anchors: Anchors of type indicated below, fabricated fromcorrosion resistant materials with capability to sustain, without failure,a load equal to 6 times the load imposed when installed in unitmasonry and equal to 4 times the load imposed when installed inconcrete, as determined by testing per ASTM E 488 conducted bya qualified independent testing agency. Cast-in-place anchors.

2.04 PAINT

A. Shop Primers: Provide primers to comply with applicablerequirements in Section 09910 - Paints.

B. Bituminous Paint: Cold applied asphalt mastic complying with SSPC-Paint 12,except containing no asbestos fibers, or cold applied asphaltemulsion complying with ASTM D 1187.

2.05 STEEL HANDRAILS AND RAILINGS

A. Fabricate pipe railings to dimensions and details shown withsmooth bends and welded joints ground smooth and flush. Wheredetails are not shown, use 1-1/4 inch minimum nominaldiameter,1.66 inch O.D. to 1-112 inch maximum nominal diameter,1.90 inch O.D. standard weight steel pipe.

B. Close exposed ends of pipe by welding 3/16 inch thick steel plate inplace or by use of prefabricated fittings.

2.06 FINISHES, GENERAL

A. Comply with NAAMM's "Metal Finishes Manual for Architectural and MetalProducts” for recommendations for applying and designating finishes.

2.07 STEEL FINISHES

A. Galvanized Handrails and Railings: Hot-dip galvanize exterior steeland iron handrails and railings to comply with ASTM A 123. Hot-dipgalvanize hardware for exterior steel and iron handrails and railings tocomply with ASTM A 153/A 153M.

B. Fill vent and drain holes that will be exposed in finished Work, unlessindicated to remain as weep holes, by plugging with zinc solder and filing offsmooth.

C. For galvanized handrails and railings, provide galvanized fittings,brackets, fasteners, sleeves, and other ferrous components.

E. Preparation for Shop Priming: After galvanizing, thoroughly cleanhandrails and railings of grease, dirt, oil, flux, and other foreign matter,and treat with metallic phosphate process.

F. Preparation for Shop Priming: Prepare uncoated ferrous metal surfacesto comply with minimum requirements indicated below for SSPCsurface preparation specifications and environmental exposure


conditions of installed handrails and railings.1. SSPC-SP 3 "Power Tool Cleaning."

2.08 ALUMINUM FINISHES

A. Finish designations prefixed by AA comply with system established by theAluminum Association for designating aluminum finishes.

B. Class 1, Clear Anodic Finish: AA-MN12C22A41 (Mechanical Finish:nonspecular as fabricated; Chemical Finish: etched, medium matte;Anodic Coating: Architectural Class I, clear coating 0.018 mm or thicker)complying with AAMA 607.

2.09 FABRICATION

A. General: Fabricate handrails and railings to comply with requirementsindicated for design, dimensions, member sizes and spacing,details, finish, and anchorage, but not less than that required tosupport structural loads.

B. Assemble handrails and railings in the shop to greatest extentpossible to minimize field splicing and assembly. Disassembleunits only as necessary for shipping and handling limitations. Clearlymark units for reassembly and coordinated installation. Useconnections that maintain structural value of joined pieces.

C. Interconnect railing and handrail members by butt-welding or weldingwith internal connectors, at fabricators option, unless otherwiseindicated.1. At tee and cross intersections, provide coped joints.2. At bends, interconnect members by means of prefabricated

elbow fittings or flush radius bends, as applicable, of radiusesindicated.

3. Form bends by use of prefabricated elbow fittings and radiusbends or by bending members at fabricators option.

D. Form simple and compound curves by bending members in jigs toproduce uniform curvature for each repetitive configuration required;maintain cylindrical cross-section of pipe throughout entire bendwithout buckling, twisting, or otherwise deforming exposed surfacesof handrail and railing components.

E. Welded Connections: Fabricate handrails and railings for connectingmembers by welding. Cope components at perpendicular and skewconnections to provide close fit, or use fittings designed for thispurpose. Weld connections continuously tocomply with the following:1. Use materials and methods that minimize distortion and

develop strength and corrosion resistance of base metals.2. Obtain fusion without undercut or overlap.3. Remove flux immediately.4. At exposed connections, finish exposed surfaces smooth and

blended so no roughness shows after finishing and weldedsurface matches contours of adjoining surfaces.

F. Nonwelded Connections: Fabricate handrails and railings byconnecting members with concealed mechanical fasteners andfittings, unless otherwise indicated. Fabricate members and fittings


to produce flush, smooth, rigid, hairline joints.

G. Provide inserts and other anchorage devices for connecting handrailsand railings to concrete or masonry work. Fabricate anchoragedevices capable of withstanding loads imposed by handrails andrailings. Coordinate anchorage devices with supporting structure.

H. Provide wall returns at ends of wall-mounted handrails, except whereotherwise indicated. Close ends of railing.

I. Brackets, Flanges, Fittings, and Anchors: Provide wall brackets, endclosures, flanges, miscellaneous fittings, and anchors forinterconnections of pipe and attachment of railings and handrails toother work. Furnish inserts and other anchorage devices forconnecting railings and handrails to concrete or masonry work.1. Wall Bracket (located at ramps, passageways, aisles, and corridors)

a. Acceptable Malleable Iron Wall Brackets (Steel Handrails)1) "382" by Julius Blum & Co., Carlstadt, New Jersey2) "1765" by R&B Wagner Inc., Butler, Wisconsin3) "4596" by J.G. Braun Co., Skokie, Illinois

b. Acceptable Aluminum Wall Brackets (Aluminum Handrails)1) "384" by Julius Blum & Co., Carlstadt, New Jersey2) "1767" by R&B Wagner Inc., Butler, Wisconsin3) "4579" by J.G. Braun Co., Skokie, Illinois

2. Wall Bracket (located at stairways)a. Acceptable Malleable Iron Wall Brackets (Steel Handrails)

1) "306" by Julius Blum & Co., Carlstadt, New Jersey2) "1770" by R&B Wagner Inc., Butler, Wisconsin3) "4549" by J.G. Braun Co., Skokie, Illinois

b. Acceptable Aluminum Wall Brackets (Aluminum Handrails)1) "316A" by Julius Blum & Co., Carlstadt, New Jersey2) "1772" by R&B Wagner Inc., Butler, Wisconsin3) "4494" by J.G. Braun Co., Skokie, Illinois

J. Shear and punch metals cleanly and accurately. Remove burrsfrom exposed cut edges.

K. Ease exposed edges to a radius of approximately 1/32 inch,unless otherwise indicated. Form bent metal corners to smallest radiuspossible without causing grain separation or otherwise impairing the Work.

L. Cut, reinforce, drill, and tap components, as indicated, to receive finishhardware, screws. and similar items.

M. Provide weep holes or another means to drain entrapped water in hollowsections of handrail and railing members that are exposed to exterioror to moisture from condensation or other sources.

N. Fabricate joints that will be exposed to weather in a watertight manner.

0. Stair Railings and Handrails: Comply with applicable requirementsspecified elsewhere in this Section for steel pipe railings and handrails,andas follows.1. Railings may be bent at corners, rail returns, and wall

returns, instead of using prefabricated fittings.2. Connect railing posts to stair framing by direct welding,

unless otherwise indicated.


PART 3 EXECUTION


A. Fit exposed connections together to form tight, hairline joints.

B. Perform cutting, drilling, and fitting required to install handrails andrailings. Set handrails and railings accurately in location,alignment, and elevation; measured from established lines andlevels and free from rack.1. Do not weld, cut, or abrade surfaces of handrail and railing

components that have been coated or finished after fabricationand that are intended for field connection by mechanical or othermeans without further cutting or fitting.

2. Set posts plumb within a tolerance of 1/16 inch in 3 feet.

3. Align rails so variations from level for horizontal members andfrom parallel with rake of steps and ramps for sloping membersdo not exceed 114 inch in 12 feet.

C. Corrosion Protection: Coat concealed surfaces of aluminum that willbe in contact with grout, concrete, masonry, wood, or dissimilarmetals with a heavy coat of bituminous paint.

D. Adjust handrails and railings before anchoring to ensure matchingalignment at abutting joints. Space posts at interval indicated, butnot less than that required by structural loads.

E. Fastening to In-Place Construction: Use anchorage devices andfasteners where necessary for securing handrails and railings andfor properly transferring loads to in-place construction.

3.02 RAILING CONNECTIONS

A. Nonwelded Connections: Use mechanical or adhesive jointsfor permanently connecting railing components. Use wood blocksand padding to prevent damage to railing members and fittings. Sealrecessed holes of exposed locking screws using plastic cement fillercolored to match finish of handrails and railings.

B. Welded Connections: Use fully welded joints for permanentlyconnecting railing components. Comply with requirements forwelded connections in "fabrication" Article whether welding isperformed in the shop or in the field.

3.03 ANCHORING POSTS

A. Form or core drill holes not less than 5 inches deep and 3/4 inch largerthan OD of post for installing posts in concrete. Clean holes of loosematerial, insert posts, and fill annular space between post and concretewith the following anchoring material, mixed and placed to comply withanchoring material manufacturer's written instructions:1. Nonshrink, nonmetallic grout.

B. Leave anchorage joint exposed; wipe off surplus anchoring material; andleave 1/8 inch build-up, sloped away from post.

C. Anchor posts to metal surfaces with oval flanges, angle type, or floor type


as required by conditions, connected to posts and to metal supportingmembers as follows:1. For steel pipe railings, weld flanges to post and bolt to metal

supporting surfaces.

3.04 ANCHORING RAILING ENDS

A. Anchor railing ends into concrete and masonry with round flangesconnected to railing ends and anchored into wail construction withpostinstalled anchors and bolts.

B. Anchor railing ends to metal surfaces with flanges bolted to metalsurfaces.1. Weld flanges to railing ends for steel pipe railings.2. Connect flanges to railing ends using nonwelded connections.

3.05 ATTACHING HANDRAILS TO WALLS

A. Attach handrails to walls with wall brackets.

B. Locate brackets as indicated or, if not indicated, at spacing required tosupport structural loads.

C. Secure wall brackets to building construction as follows:1. For concrete and solid masonry anchorage, use drilled-in

expansion shields and hanger or lag bolts.2. For hollow masonry anchorage, use toggle bolts.3. For steel framed gypsum board assemblies, use hanger or lag

bolts set into wood backing between studs. Coordinate with studinstallation to locate backing members.

3.06 CLEANING

A. Clean aluminum and stainless steel by washing thoroughly withclean water and soap and rinsing with clean water.

B. Touchup Painting: Cleaning and touchup painting of field welds, boltedconnections, and abraded areas of shop paint are specified in Section09910 - Paints.

C. Galvanized Surfaces: Clean field welds, bolted connections, andabraded areas and repair galvanizing to comply with ASTM A 780.

END OF SECTION

Juniata County School District 05810-1East Juniata High School Industrial Arts Addition EXPANSION JOINT COVER ASSEMBLIES

SECTION 05810 – EXPANSION JOINT COVER ASSEMBLIES

PART 1 GENERAL


A. The provisions of the General Conditions, SupplementaryConditions, and the Sections included under Division 1, GeneralRequirements, are included as a part of this Section as though boundherein.

1.2 SUMMARY

A. This Section includes floor, wall and ceiling expansion joint covers.

B. Related Work Specified Elsewhere1 Section 03300 - Cast-In-Place Concrete: For cast-in anchorage

and frames for expansion joints in concrete floors.2. Section04080 - Masonry Anchorage and Reinforcement: For

preformed expansion joint material.3. Section 07600 - Flashing and Sheet Metal: For roof expansion

joint systems.4. Section 07920 - Joint Sealants: For elastomeric sealants.

1.3 SUBMITTALS

A, Submit product data, installation instructions, and generalrecommendations for each type of expansion joint cover assemblyindicated.

B. Submit shop drawings showing full extent of expansion joint coverassembly; include large-scale details indicating profiles of each type ofexpansion joint cover assembly, splice joints between sections,joining with other types, special end conditions, anchorages,fasteners, and relationship to adjoining work and finishes. Includedescription of materials and equipment.

C. Submit samples for selection purposes in the form of manufacturer'scolor charts, actual units, or sections of units showing full range ofcolors, textures, and patterns available for each exposed metal andelastomeric material of expansion joint cover assembly indicated.


A, Single - Source Responsibility: Obtain expansion joint cover assembliesfrom one source from a single manufacturer, unless otherwise noted orapproved by Architect.

B. Fire-Test-Response Characteristics: Where indicated, provideexpansion joint cover assemblies identical to those assemblies whosefire resistance has been determined per ANSI/UL 263, NFPA 251,


U.B.C. 43-1, or ASTM E 119, including hose stream test of verticalwall assemblies, by a testing and inspecting agency acceptable toauthorities having jurisdiction.1. Fire Resistance Ratings: Not less than the rating of adjacent

construction.

PART 2 PRODUCTS

2.01 MANUFACTURERS

A. Products of the following manufacturers will be considered, providingtheir products equal or exceed the quality specified; and they canprovide products of the type, size, function, and arrangementrequired:1. Conspec Systems, Inc., Muncy, Pennsylvania.2. Balco/Metalines, Inc., Wichita, Kansas3. MM Systems Corporation, Tucker, Georgia4. Watson Bowman Acme, Amherst, New York

B. Products of other manufacturers will be considered for acceptanceprovided they equal or exceed the material requirements andfunctional qualities of the specified product. Requests for Architect'sapproval must be accompanied by the "Substitution Request Form"and complete technical data for evaluation. All materials forevaluation must be received by the Project Manager and SpecificationDepartment at least 10 days prior to bid due date. Additionalapproved manufacturers will be issued by Addendum.1. Refer to Section 00100 - Instruction To Bidders and Section

00121 -Substitution Request Form for additional requirements.

2.02 MATERIALS

A. Aluminum: ASTM B221, alloy 6063-T5 for extrusions; ASTM B209, alloy6061-15, sheet and plate.1. Protect aluminum surfaces in contact with cementitious materials

with zinc chromate primer or chromate conversion coating.B. Extruded Preformed Seals: Single or multilayered rubber extrusions

as classified under ASTM D2000, designed with continuous,longitudinal, internal baffles and formed to fa compatible frames. Coloras selected by Architect from manufacturer's standard colors.

C. Fire Barriers: Designed for indicated or required dynamic structuralmovement without material degradation of fatigue when testedaccording to ASTM E 1399 tested in maximum joint width conditionwith a field splice as a component of an expansion joint cover perANSI/UL 263, NFPA 251, U.B.C. 43-1, or ASTM E 119, including hosestream test of vertical wall assemblies by a nationally recognizedtesting and inspecting agency acceptable to authorities havingjurisdiction.

D. Accessories: Manufacturer's standard anchors, fasteners, setscrews, spacers, adhesive and other accessories compatible withmaterial in contact, as indicated or required for complete installation.


2.03 MANUFACTURED UNITS

A. Floor to Floor (New to Existing)1. Balco 75FTE-22. MM Systems Series FS-NE-2003. Watson Boman Acme Series LPF-C4. Nystrom Building ProductsTMF200RFMW

B. Floor to Wall (New to New/Existing)1. Conspec Systems GFRW-2002. Balco 6FVP-23. MM Systems FSNE-2004. Nystrom Building ProductsTMB200W

C. Wall to Wall (Interior only, 180 degrees)1. Conspec Systems FWF-2002. Balco TCWW-23. MM Systems Series KX4. Watson Boman Acme Model CWS-2005. Nystrom Building Products TCW-200

D. Wall to Wall (Interior only, 90 degrees)1. Conspec Systems FWFC-2002. Balco TCWW-23. Watson Boman Acme CWC-2004. Nystrom Building Products TCF200W

2.04 FABRICATION

A. Provide expansion joint cover assemblies of design, basic profile,materials, and operation indicated. Select units comparable to thoseindicated or required to accommodate joint size, variations in adjacentsurfaces, and structural movement. Furnish units in longestpracticable lengths to minimize number of end joints. Providehairline mitered corners where joint changes directions or abutsother materials. Include closure materials and transition pieces, tee-joints, corners, cross connections, and other accessories asrequired to provide continuous joint cover assemblies.

B. Moisture Barrier: Provide manufacturers continuous, standard,flexible vinyl moisture barrier under covers at locations indicated.

2.05 FINISHES

A. General: Comply with NAAMM "Metal Finishes Manual" for finishdesignations and application recommendations, except as otherwiseindicated. Apply finishes in factory after products are fabricated.Protect finishes on exposed surfaces with protective covering beforeshipment.

B. Aluminum Finishes: Finishes designations prefixed by AA conform tothe system established by the Aluminum Association for designating


aluminum finishes.1. Clear Anodized Finish: AA-C22A41; medium matte etched finish

with 0.7-mill minimum thick anodic coating.

C. Factory-Primed Concealed Surfaces: Protect concealed metalsurfaces that will be in contact with concrete and masonry surfaceswhen installed by applying a shop coat of manufacturer' standardprimer to contact surfaces. Provide minimum dry film thickness of 2.0mils.

END OF SECTION

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