H. METALWORK - University of Melbournepeople.eng.unimelb.edu.au/lua/CH2/documentation/... · ·...

TIVOLI CARPARK SITE DEVELOPMENT, 218 - 242 LITTLE COLLINS ST 1H

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H. METALWORK H1. ENVIRONMENTAL MANAGEMENT Refer to the approved Environmental Management Plan submitted in accordance with the requirements of Section 6, ENVIRONMENTAL MANAGEMENT, and ensure the mitigation and waste management processes to counter any environmental impact are established and in place. All materials intended for use in this project shall, as applicable, conform to the requirements of Section 6, ENVIRONMENTAL MANAGEMENT, Part 7 “SELECTION AND SUPPLY OF PRODUCTS AND MATERIALS”. H2. GENERAL REQUIREMENTS & STANDARDS Fabricate and pre-assemble items in the workshop wherever practicable. Use metals suited to their required function, finish and method of fabrication, in sections of adequate strength and stiffness for their purpose. Unless specified otherwise, all materials and workmanship shall comply with the following Australian Standards as applicable: - WORKMANSHIP AS 1554 SAA Structural Steel Welding Code AS 1627 Metal finishing - Preparation and pre-treatment of surfaces AS 1657 Fixed platforms, walkways, stairways and ladders - Design, construction and installation AS / NZS 1170 Structural Design Actions AS 1170.1 Dead and live loads and load combinations STEEL AS 1163 Structural steel hollow sections AS 1397 Steel sheet and strip - Hot-dipped zinc-coated or aluminium/zinc coated AS 1449 Wrought alloy steels - Stainless and heat-resisting steel plate, sheet and strip AS 1450 Steel tubes for mechanical purposes AS 1554 SAA Structural Steel Welding Code AS 1554.1 Welding of steel structures AS 1554.6 Welding stainless steel for structural purposes AS 3678 Structural steel - Hot-rolled plates, floor plates and slabs AS 3679 Structural steel AS 3679.1 Hot-rolled bars and sections AS 3679.2 Welded sections ALUMINIUM AS 1665 Welding of aluminium structures AS 1734 Aluminium and aluminium alloys - Flat sheet, coiled sheet and plate AS 1866 Aluminium and aluminium alloys - Extruded rod, bar, solid and hollow shapes AS 1867 Aluminium and aluminium alloys - Drawn tube FIXINGS AS 1111 ISO metric hexagon commercial bolts and screws AS 1112 ISO metric hexagon nuts, including thin nuts, slotted nuts and castle nuts AS 1420 ISO metric hexagon socket head cap screws


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H2. GENERAL REQUIREMENTS & STANDARDS (Continued) AS 1421 ISO metric hexagon socket set screws AS 1427 ISO metric machine screws AS 3566 Screws - Self-drilling - For the building and construction industries AS B194 Tapping and metallic drive screws COATINGS AS 1192 Electroplated coatings - Nickel and chromium AS 1231 Aluminium and aluminium alloys - Anodic oxidation coatings AS 1397 Steel sheet and strip - Hot-dipped zinc-coated or aluminium/zinc coated AS / NZS 4680 Hot-dipped galvanised coatings and ferrous articles AS / NZS 3750.15 Inorganic zinc silicate paint AS / NZS 3750.9 Zinc-rich organic priming paint AS 3715 Metal finishing - Thermoset powder coatings H3. MATERIALS Use only metals which are free from warp, hammer marks, burrs, scale, dirt, grease and other defects. All non-ferrous metals are to be uniformly finished, surfaced, machined and buffed free from defects and the sections are to be accurately formed to the sizes and shapes required. Mild steel shall comply with AS 3670 and AS 3679 - Structural Steel. Steel tubes - CHS and RHS shall be commercial quality, grade GR 200 complying with AS 1163. Stainless steel to AS 1449 and grade 304 generally or grade 316 where noted. H4. WORKMANSHIP Fabrication Form all metalwork neatly and accurately, bent and assembled as shown in the detail drawings and as specified. Keep edges and surfaces clean, neat and free from burrs and indentations. Remove sharp edges where exposed without excessive radiusing. Fit joints accurately and finish visible joints made by welding, brazing or soldering by grinding, buffing or the like methods appropriate to the class of work before painting, galvanising, or further treatment. Self-finished metals shall be free of surface colour variations after jointing. Provide suitable and sufficient marks or other means for identifying each member of site-erected assemblies, and for their correct setting out, location, erection and connection. Mark bolted connections to show the bolting category. All markings shall be concealed in the finished works. Form bends in tube without deforming the true cross section. Bends shall be smooth and even and not less than the minimum radius recommended by the manufacturer.


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H4. WORKMANSHIP (Continued) Match colours of sheets, extrusions and heads of fastenings in colour finished work. Make provision for thermal movements in joints and fastenings. H5. WELDING Steel welding shall comply with AS 1554. Aluminium welding to AS 1665. Provide finished welds which are free of surface and internal cracks, slag inclusion, and porosity. Do not site weld without prior approval. Wherever possible locate site welds in positions for down hand welding. All welds shall be continuous, ground and buffed smooth where visible in the finished work to form a neat even finish between the welded parts. H6. PREVENTION OF CORROSION Take adequate precautions in the design and installation of metalwork to prevent corrosion due to electrolytic action between dissimilar metals or rusting of ferrous metals. Use Densochrome tape separator where contact is unavoidable. Ferrous metals located in damp areas shall be hot dip galvanised. H7. FASTENINGS All patent fasteners for fixing metalwork items shall be used in accordance with the manufacturer’s direction. Provide fastenings, including bolts, anchors, screws, rivets and welds �� sufficient to ensure the rigidity of the assembly; �� of types appropriate to the work; �� in materials of mechanical strength and corrosion resistance at least equal to that of the

lowest resistant metal joined; �� capable of transmitting the loads and stresses imposed; �� installed so as to prevent galvanic corrosion. Fastenings to aluminium (including aluminium alloys) shall be aluminium alloy or non-magnetic stainless steel. Fastenings to stainless steel shall be appropriate stainless steel materials only. Passivate the threads of threaded fastenings. Screws shall comply with AS 1420, AS 1421, AS 1427, AS 3566, or AS B194, as applicable. Masonry anchors shall be proprietary types comprising screws or bolts in self-expanding sockets and used in accordance with the manufacturer’s recommendations.


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H8. PREPARATION FOR COATING Before applying decorative or protective coatings to metalwork, complete welding, cutting, drilling and other fabrication, and prepare the surface by a suitable method to AS 1627.2 Class 1. Finally clean surface with a suitable solvent such as mineral turps or white spirits. H9. PREFINISHES Galvanised Coatings or Pre-Painting Where scheduled or specified for prepainting, metal components shall comply with the requirements of AS 2728 as applicable. Steel items to be galvanised or prime coat finished shall be grit blasted to Class 2 ½ in accordance with AS 1627.4. Steel items to be powder coated shall be electro-galvanised to 15 micron thickness Type C before coating. Damage Where decorative or protective factory pre-finishes are or become damaged or discoloured, remove and replace the damaged item unless the surface can be satisfactorily restored to its specified condition. Repair hot dipped zinc or aluminium/zinc coatings by cleaning the affected area and applying a two-pack zinc rich paint containing 92% zinc dust in the dry film. Repair plain mild steel primer coats as next. Priming of Steel Surfaces Generally structural and fabricated exterior metalwork steel items are to be in galvanise finish, unprimed. Fabricated interior metalwork and sheet metal items other than zincalume finish, shall be prime coat finished or over coated as scheduled or specified. Carry out all prime painting in the shop where possible. Primary paints shall be as manufactured by Jotun Australia Pty Ltd as follows:- Non-Galvanised Steelwork: Jotacote 5 2-pack water borne in-organic zinc rich silicate primer. Apply to a minimum dry fill build of 75 microns. All damage repairs to be in the same material. Priming paints shall conform to the requirements of AS 3884 and shall comply with the relevant APAS specifications. H10. METAL FINISHES Galvanised Coatings Mild steel shall be galvanised by the hot dip process after fabrication and in largest sections practical. Weight of galvanising shall be minimum of 550g/m2. The process shall include surface preparation, dipping, testing, etc., all to be carried out by an affiliated member of the Galvaniser’s Association of Australia in accordance with AS 1650. Anodised Coatings Comply with the requirements of AS 1231. External applications shall be coating grade 4 with an average thickness of 25 microns. Internal applications, unless otherwise noted, shall be coating grade 3 with an average thickness of 20 microns.


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H10. METAL FINISHES (Continued) Include for all pre-treatment to ensure an even appearance of the finished surfaces. All coatings shall be sealed. The anodised surfaces shall match colour and texture of approved samples and, unless otherwise noted, shall be natural satin finish. Thermoset Powder Coatings Prepare material as follows:- Unprotected steel: Remove rust, scale and other impurities by abrasive blast cleaning to

AS 1627.4 Class 3, clean by immersion in trichloroethylene or an alkaline solution and apply a coat of iron phosphate.

Galvanised steel: Clean by immersion in a suitable alkaline or acidic solution, apply a

chromate or zinc phosphate chemical conversion coating, rinse and degrease.

Aluminium: Clean by immersion in a suitable alkaline or acidic solution, caustic

etch and apply a chromate chemical conversion coating. Apply powder using an electrostatic spray gun or fluidised bed such that no dust particles or other impurities blemish the final product. After application, bake the film in an oven accurately controlled to the temperature recommended by the powder manufacturer. Film thickness to be 60 - 80 microns with a 60% gloss level. Polyester powder coat finish is to be a selected colour and preliminary colour samples are to be submitted for approval before any manufacture is commenced. After colour approval, six samples are to be submitted for use as production colour control. Chrome Plating To comply with AS 1192 and �� shall be Service Condition Number 2, �� shall be regular chromium deposit throughout. �� on iron or steel shall comply with Table 2, �� on zinc alloy shall comply with Table 3, �� on copper or copper alloy shall comply with Table 4, �� on aluminium or aluminium alloy shall comply with Table 5.


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H11. PROTECTION Protect all metalwork whilst on site, before and after erection, against damage by impact, staining, corrosion, scratching or other defacement. Protect stainless steel, chrome plating, and other metal finishes liable to damage by approved means, or as recommended by the manufacturer. H12. SUNDRY METALWORK Supply all fastenings such as nails, screws, bolts, packers and other sundry metalwork items in this or other trades and incidental to the proper completion of the Works. H13. ACCESS FLOOR MG05 General The access floor system shall consist of interchangeable square panels selected to meet specific load requirements as detailed. Access floor shall be Tasman Tascor type as listed in materials specification. Support panels on adjustable pedestal assemblies which will positively locate panels. Provide test results from an approved NATA testing laboratory to confirm that the access floor system complies with all the performance requirements of this specification. Refer to services specification regarding the maximum allowable air leakage rates of the Access Floor System. Shop Drawings Submit shop drawings showing the complete access floor system including floor panel layout and all accessories that are part of the system. Submit details and descriptive notes for finishes of components, anchoring, edge details and interfaces with adjoining work. Samples Submit to the Superintendent for approval one full size floor panel with finished surface and understructure components for type of access floor system being supplied. Access Floor Panels The panels shall be 600mm x 600mm in size and shall be interchangeable with other panels except where cut for special conditions. The panels shall be easily removed and replaced without disturbing adjacent panels, by one person using a portable lifting device. The panels shall consist of a full hard steel top sheet and die formed bottom pan with a corrosion resistant protection, inside and out, filled with a structural cementitious core. The panels shall be rigid structural assemblies, fabricated to size with a size and squareness tolerance of + 0.25mm and a flatness tolerance of + 0.5mm measured on a diagonal across the top of the panel. Each corner of the panel shall be formed to accept a single locking bolt designed to secure a single corner of each of four adjacent panels at the pedestal head. The maximum weight of each panel shall not exceed 12.0 kg.


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H13. ACCESS FLOOR (Continued) Understructure System The understructure shall be a stringerless corner fixed system and shall consist of steel pedestal base and aluminium head assemblies fabricated with zinc coated corrosive resistant finishes. All components to be factory assembled. Pedestal bases shall be not less than 10,000mm2 in foot print area. The assembly shall be fabricated with sufficient height to provide overall depth of 250mm. For finished floor heights of 150mm and over vertical adjustment shall be accomplished over a range of not less than + 25mm without requiring the rotation of the pedestal head. The pedestals shall be provided with a means of levelling and locking the assembly at a selected height which requires a deliberate action to change the height setting and which prevents vibration displacement. Each pedestal field head shall be designed to receive a single lock bolt to secure four adjacent panels so that the entire structural system is fully engaged as a structural membrane. Where required provide additional deflection pedestals as required to support heavier loadings to manufacturer’s recommendations. Accessories Provide service outlets in locations as required by the Contract Drawings. The outlets shall accommodate power, communications and data signal cables. Provide air grilles in locations and of sizes as detailed. The access floor system shall include steps and handrails in locations where shown. Provide panel lifting devices as required by the Superintendent. Performance Requirements The access floor system shall meet or exceed the specific performance requirements set out below:- General: All components shall be protected against corrosion with the manufacturers standard factory applied protective finishes. Australian Standards: The entire access floor system under this specification shall meet or exceed all of the requirements for Medium Grade under AS 4154 General Access Floors (Elevated Floors) 1993. Point Load Capacity: The rated point load capacity of the access floor system when tested in accordance with AS 4154 shall not be less than 3.0 kN.


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H13. ACCESS FLOOR (Continued) Impact Load: An impact load imposed on the access floor system by dropping a 45 kg mass from 900mm height onto a 25mm x 25mm square indentor shall not create structural failure. Fire Hazard: The panels, without floor coverings, shall provide zero indices for ignitability, spread of flame, heat evolved and smoke developed. These indices shall not change when the panel is cut. Tests shall comply with AS 1530 Part 3. Occupational Health and Safety: The access floor system shall not include any toxic substances which could prove harmful to building occupants nor shall it create dust or contaminants which are harmful to personnel or equipment. Floor Coverings: As outlined in the materials legend and finishes schedule. Installation The floor system and accessories shall be installed by the manufacturer’s authorised representative to maintain the integrity of the products and acceptable performance of the completed installation. Examine the subfloor for unevenness, irregularities and dampness that could affect the quality and execution of the work. Do not proceed with installation until the subfloor surface is clean, dry, clear of other trades and ready to receive access flooring. The access floor shall be prepared and installed in accordance with the access floor manufacturer’s instructions, covering preparation, layout, alignment, and installation. The installed access floor shall be level within + 1.5mm in 3 metres or + 2.5mm over the entire floor and shall be rigid and free of rocking panels. The perimeter fit of cut panels around perimeters, columns and other such structures shall have a maximum gap of 2mm and the system shall not rely for its lateral stability on such structures. Adjustment and Cleaning Make all final adjustments for accurate level and alignment and remove installation debris as the work progresses maintaining the area under the finished panels in a clean and tidy condition. Be responsible for providing protection to the finished floor installation to prevent damage or defacement and remove same at Practical Completion. Maintenance and Handover Prior to Practical Completion submit maintenance manual as required by the Contract to provide clear instruction for the safe use, cleaning and application of the access floor.


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H14. ACCESS FLOOR AIR GRILLES MM.02 Supply and install perforated steel grilles built-in flush with finished carpet surface of access floors to the lengths and widths detailed on architectural drawings. Allow unit to carry a floor loading of 1.8 k Pa. H15. METAL FLOORING H15.1 MAINTENANCE WALKWAYS MG.03 Extent: To walkways located from Levels 1 to Level 10, West elevation, and Stair 5. Material: Expamet Gridwalk steel as supplied by Expanded and Metal Perforators Pty Ltd or equal product. Panels shall be galvanised finish, punched and expanded with mesh size 135 x 45mm, 5mm thick, code WK4514. Installation: Prefix m.s. support angle by welding to structural wall floor beams before hot-dip galvanizing process. Lay panels with long way mesh (LWM) across the walkways, clamped to the inner and outer steel framing with Expamet patent galvanised bolted clamps WK45, at normal 450mm centres. Finish: Natural galvanised. H15.2 BALCONY FLOORS MS.03 Extent: To all North and East facing balconies from level 1 to roof. Refer also to finishes schedules. Material: BHP ‘Floor Plate’ with raised angular pattern on top surface, perforated to 50% openness in a layout of circular holes max 7mm diameter, positioned between the plate pattern to approval. Plate panels shall be in single size to North balconies and in maximum 1500mm size elsewhere. Plate shall conform to AS 3678 – 250, in 6mm thickness. Installation: Support panels onto structural beams or purlins as detailed with bolt fixings to perimeter steel framing, not intermediate cross members. Bolt holes shall be oversize, bolts fitted with flexible washers.


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H15.2 BALCONY FLOORS MS.03 (Continued) Ensure panel butt joints are true and flush. Finish: Natural galvanised. H16. SHEET STEEL SOFFITS MS.06 H16.1 GENERAL Install sheet steel soffits to the lowest level balconies of North, South and East elevations. Metal sheeting shall conform to AS 1397, having base grade of G300 and coating Class AZ150. H16.2 NORTH BALCONIES Form self supporting trays of 2.0mm zincalume sheet with folded perimeter flange, upstand and shaped base with falls to integral outlet pop. Set flanges onto perimeter steel framing and secure with continuous silicone bedding. H16.3 SOUTH & EAST BALCONY Form self supporting trays of 2.0mm zincalume sheet with folded perimeter flange, upstand and flat bases. Trays shall be of constant width to fit between structural crossbeams at nominal 1500mm centres (to be site verified), secured in position as for H16.2 BALCONIES. Lengths shall vary to suit the outer edge profile of the balcony and to suit the corner mitre junction. At building wall each tray shall incorporate an integral angled pop, 75 x 150mm discharging to a continuous wall gutter. Wall gutter, collection head, cast in drain leading to concealed downpipe shall be formed in zincalume sheet with required support brackets in accordance with the details.


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H17. GATIC COVERS & GRATINGS MG08 H17.1 FLOOR ACCESS PANELS Provide 2 hour fire rated and water sealed removable access panels to the Phase Change Pit and Sub-station where shown and of size indicated on the drawings. Access panels shall be Gatic Class D Heavy duty 21 part multi-part cover with steel perimeter frame and intermediate beams. Infill cover and frame rebates with 32 MPa minimum strength concrete as per AS 3996-1992. Access covers to be installed in accordance with manufacturer’s instructions and supplied with lifting keys. H17.2 TRENCH GRATING Supply and install slot gratings to the Ground Floor external S.W. entrance as indicated on the drawings, set into pavement trench to finish flush to pavement. Units shall be longitudinal bar type, complete with cast in edge support frame and in stainless steel finish, of extra light duty capacity. H18. METAL WALL COVERS MS.06 / MR.06 H18.1 MS.06 GENERAL Install vertical metal tray panels to the North wall of service entrance at ground floor, in modules matching the door/wall grille widths. (refer to North Elevation for panel breakup) Metal sheeting shall conform to AS 1397, having base grade of G300 and coating Class AZ150. Form trays of 2.0mm zincalume sheet with folded vertical flanges to form nominal 25mm edge recess joint. H18.2 MS.06 INSTALLATION Install rear fixing rails of zincalume ‘top-hat’ sections horizontally at 1200mm centres to the masonry base wall. Fix panels over rails, fixed at the recesses with galvanised metal self-tap screws fitted with EPDM washers. Precut panels at base edges to match pavement grades and set up 20mm clear. At heads butt closely to soffits or extend up into louvre base sill. H18.3 MS.06 FINISH Natural zincalume.


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H18.4 MR.06 GENERAL Install vertical metal paneling to external walls scheduled. Panelling shall by “Lysaght Panelrib” in selected colorbond finish over zincalume coated steel in accordance with AS 1397 – AZ 200. H18.5 MR.06 INSTALLATION & FINISH Ensure wall framing is fitted with noggin rows at maximum spacing of 600mm. Set panels out vertically with end laps and side laps to manufacturer’s recommendation. Line all end taps up across the wall face to a true straight line. Fix panels with pan-head thread forming galvanised steel screws fitted with neoprene scaling washers. Screws to be colorbond finished to match walling. H19. METAL WALL SCREENS MS.01/02 H19.1 GENERAL Perforated metal screens shall be supplied and installed to the east elevation and returns in two layers to the extent and shapes shown on the elevations and details. Panel material shall be nominally 2mm thick cold rolled steel sheet to AS 1595 produced with a surface quality for external exposure and to take protective coatings without any surface ageing or stretcher straining visible. General panel size shall be 1200mm wide x full height with vertical edges folded to the profiles shown on the drawings. At vertical return corners east front panels shall be bent around to the mid-line of corner post supports of north and south faces. H19.2 PERFORATIONS AND FINISH Front panels (MS.01) shall be perforated as listed in materials specification. Rear panels (MS.02) shall be perforated as listed in materials specification. All sheets shall be prepared and primed in Zinc-rich silicate primers as specified in cl. H9. H19.3 INSTALLATION Panels Erect rear panels as detailed to the SHS support mullions with side butt joints on frame centre lines. Panels shall extend above and below the outer panels as detailed. Fit cleats to clear of rear sheets in horizontal alignment for field fixings and at a regular distance from profiled edges. (refer to structural engineers details for top and bottom profiles).


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H19.3 INSTALLATION (Continued) Brackets Rear panel brackets: 1.6mm flats extending clear each side of framing. Front panel ‘stand-out’ brackets, (refer to structural engineers details) Fixings Bracket bolts Welded to mullions. Panel bolts, tech screw and front seal. H20. METAL WALL LOUVRES ML01, ML02, ML03 H20.1 GENERAL Supply and install galvanised steel, fixed blade louvres to the details and where scheduled. Louvre sets shall be as manufactured by IVR Equipment (Vic) or equal product of depth and pitch scheduled type ML. Sets shall be complete with channel surround frame and zed shaped base sill. Fabricate units with concealed mullions and provide a continuous horizontal louvre appearance. Install units fully sealed to the frame perimeters, solidly fixed to base framing and construction with the following accessories and finishes. H20.2 PLANT ROOMS ML.01 Provide rear fixed, galvanised steel bird mesh to areas requiring through ventilation as noted on the drawings. Louvre sets – natural galvanise. H20.3 TOILETS ML.02, EAST CORE EXTERNAL WALL, DOOR HEAD INFILL LOUVRES Provide framed and fixed, galvanised steel insect wire screens, demountable from the louvre frame. Louvre sets built into door heads shall have similar bird mesh fitted into removable frames, in finish as for louvers. Wire mesh to be similar to type MM03 Louvre sets – natural galvanise. H20.4 NORTH FACADE RELIEF LOUVRES ML.03 Provide rear fixed, galvanised steel bird mesh to Services and Store Room louvres and to Roof Level tapered relief louvres for the height of the relief shaft. Provide 0.8mm zincalume steel blanking panels fixed to the louvre frames for the height of the louvres above the relief shaft (as detailed on architectural drawings). Louvre sets, mesh and blanking – selected powder coating over galvanising.


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H21. METAL STAIRS H21.1 FOLDED STEEL PLATE STAIRS Extent: Stair 1, Stair 4. Fabrication: M.S. flat plate strings with welded, folded m.s. plate tread/riser units to the thicknesses detailed. Tread unit shall comprise riser, tread and short turn-up to form concealed lap with next unit. Front nosings shall have a radius of minimum 15mm. Fabricate units and strings into flights, grind all welds to a smooth surface finish. Finish: Prepare and prime all surfaces in zinc-rich silicate primer as specified in Clause H9. Refer to Flooring Finishes for tread and nosing coverings. H21.2 STEEL FORMED CONCRETE STAIRS Extent: Lower flights Stair 1, All flights to Stair 2 and Stair 3. Fabrication: Forming comprising steel soffit, strings and step risers shall be as manufactured by Stairform Australia Pty Ltd or equal approved and to the details. Finish: Prepare and prime all finally exposed surfaces in zinc-rich silicate primer as specified in Clause H9. Refer to Flooring Finishes for tread and nosing coverings. H21.3 OPEN GRID EXTERNAL, STAIR 5 Extent: Lift Motor Room access stair and walkway extension. Fabrication: M.S. wall plate and channel strings with welded prefabricated treads. Strings shall be fitted with welded base plates drilled for bolting to deck level supports.


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H21.3 OPEN GRID EXTERNAL, STAIR 5 (Continued) Treads shall be MG03 as detailed on architectural drawings. Floor to walkway extension to match stair MG03. Finish: Strings shall be prepared and hot-dip galvanised, treads shall be galvanised steel. H21.4 BASEMENT ACCESS LADDER Extent: Between basements B2, B3. Fabrication: Similar to external stair with flat plate strings welded fixing plates and welded Webforge treads, Type T1. Finish: Hot dipped galvanised H21.5 INSTALLATION Construct all stairs and ladder to the layouts and dimensions detailed and to the requirements of the Architectural and Structural Engineering drawings. Provide all welded and bolted connections in the sizes noted, of galvanised finish to all bolts, nuts and washers. H22. BALUSTRADES & HANDRAILS Balustrades and all components shall conform to AS 1288 ‘Human Impact Safety Requirements’. H22.1 GLASS & STEEL ROD BALUSTRADES Extent: South East Balcony ends, Stair 1 lower flights between levels ground to 1. Framing: Fabricate base framing of 100 x 12mm mild steel, fully welded, ground smooth and hot dip galvanised, to the dimensions and shapes detailed to AS / NZS 4680. Baluster posts shall be site welded to strings and structural framing as occurs, cropped around the upstanding strings to finish flush on the outer face. Handrails: (refer to architectural drawings A8.51, A8.52, A8.53 for balustrade and handrail types. Provide additional handrails where required at landings and half landings, set to a level to match the main centre stair handrail, fixed with end plates where occurring between solid walls or welded to protective balustrades otherwise.


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H22.1 GLASS BALUSTRADES (Continued) Finish: Hot-dip galvanized. Provide all wreaths and angle changes required in accordance with the details. After welding implement touch-up repairs with zinc-rich silicate primer to all disturbed galvanised surfaces. Infill panels: For toughened glass balustrade panels and supporting channels refer to GLAZING Section. H22.2 STEEL TUBE BALUSTRADES & GUARDRAILS Extent: Stairs 2 and 3 Framing: Top rail, handrail and baluster posts shall be Tubeline or equal manufacture steel tube of size 42.4mm ID x 2.6mm. Intermediate rails shall be similar, of size 33.7mm ID x 2.6mm. Bolting plate shall be 6mm thick, anchor bolts shall be 10mm galvanised. All tubing shall comply with AS 1163 of min. grade C25OLO. Fabricate to the dimensions and shapes detailed with all wreaths and angle changes, wall rail connection plates and base plates as required. Fabricated sections are to be hot dip galvanised to AS / NZS 4680 in lengths to leave a minimum of site welding. Grind all site welds to a smooth even surface and implement touch-up repairs with zinc-rich silicate primer to welds and all disturbed galvanised surfaces. H22.3 PREFABRICATED COMPONENT BALUSTRADE & HANDRAIL Extent: External Stair 5, Basement 2-3 ladder. Framing: Fabricate from Monowills standard galvanized steel tube components with all posts, handrails, secondary rails, wreaths, bends and connection plates as required in accordance with the layout drawings. Installation: Bolt fix baluster posts to channel strings with flat or angled base plates and galvanised bolts. Weld ladder handrail direct to plate strings, ground smooth and touch-up repaired with zinc-rich silicate primer.


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H23. MEZZANINE GLAZED PARTITIONS FS05 Framing: Fabricate steel framed partitions incorporating glazed balustrade sections where noted on the drawings, constructed generally as for GLASS BALUSTRADES, Clause H22.1 and to the details. Make provision to incorporate glazing channels as specified as part of GLAZING Section and additional welded angle fixings for timber slat balustrades as part of CARPENTRY Section. Finish: Hot dip galvanised to AS / NZS 4680, site welds repaired and touch-up repaired as for Clause H22.1. H24. BOLLARDS General: Bollards shall be fabricated from 165 O.D. x 5.4mm CHS galvanised m.s. tube completely filled with concrete and with 20mm thick welded base plates. After filling weld in 5mm thick domed m.s. caps ground smooth. Installation: Refer to Engineering detail for bolting requirements. Set external bollards min. 500mm below pavement surface and finishing 1500mm above. Set internal bollards into floor slab recesses to leave bolt heads min. 20mm below finished floor surface and 1500mm above, and fill recesses after installation with non-shrink mortar grout, of colour to match floor finish. Protect waterproofing membranes and where bollards intersect ensure the penetration is fully sealed by the membrane installer and to their warranty requirements. Finish: Prime coat over galvanised base finish with zinc-rich silicate primer in accordance with Clause H9. Apply gloss enamel finishing coats in selected colour/pattern as specified in PAINTING Section. H25. MAINTENANCE ACCESS SAFETY SYSTEM FS12 Allow the provisional sum stated in the PRELIMINARIES Section for the installation of a ‘Static Line and Safety Harness’ system to provide roof and façade maintenance access, the whole installation to comply with AS / NZS 1891


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H26. RAIN WATER HEADS Fabrication: Major collection heads located on the north face shall be fabricated from m.s. plate in accordance with the details and the finished units hot-dip galvanized to AS / NZS 4680. Incorporate m.s. galvanised flashing angles, cast into abutting concrete with welded rear anchor lugs, set down flush with concrete surfaces. At outlets form m.s. pops of size to fit internally with downpipes – refer to ROOFING Section for down pipe collar straps. Installation: Bolt fix to structural concrete with 4 no. 16mm dia. H.S. masonry anchors with galvanized bolts and washers. Seal the rear edge of flashing angles in silicon for watertight finish. H27. BUILT-IN GUTTER CHANNELS – LEVEL 1 SOUTH H27.1 CAST-IN GUTTERS To concrete hoods of the South façade, supply and cast in with the concrete, galvanized steel gutters in accordance with the details. Gutter channels shall be flat without fall and project each end to overlap the adjacent canopies by 200mm. Depress the outer lips to form a drip line. H27.2 FASCIA GUTTERS (EXTERNAL) FS08 To steel framed canopies of the South façade, fabricate fascia gutters of 5mm m.s. plate with stop ends and cut out for 1 no. rainwater, rear-face downpipe in accordance with detail A8.60. Channels shall be welded to the structural framing plate fins, and in conjunction with the internal gutter next specified the complete welded unit then hot-dip galvanised to AS / NZS 4680. Refer to ROOFING section for zincalume gutter inserts and downpipe. H27.3 FASCIA GUTTERS (INTERNAL) FS08 To steel framed canopies of the South façade, fabricate window head gutters to serve the shower tower discharge extent, in 5mm m.s. plate, galvanized all similar to H27.2 gutters above. (refer to architectural detail A8.60) Vertical faces shall form head fascias, for the full width of window bays, the internal face to have cut out for concealed downpipe outlet adjacent discharge. Refer to ROOFING section for zincalume gutter insert and fit shallow cross ribs to raise insert clear of window head fixings and to provide fall to downpipe.


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H28. NORTH FACADE BALCONIES Fabrication: Frame up in welded SHS tube as detailed on architectural drawings. Front faces shall be infilled with balustrade m.s. rods, welded in vertically at 120mm centres. All units shall have welds ground smooth and be hot-dip galvanized after fabrication. Installation: Weld vertical posts to structural framing, ground smooth and all post-galvanizing welds shall be touch-up repaired with metal primer as specified at Clause H9. Planter Containers / inserts Refer to Landscape Works. H29. PLANTING CONTAINER CAGES H29.1 ROOF PLANT ROOMS – SOUTH (refer to architectural drawing A7.03) Fabricants roof mounted cages similarly to Balconies, Clause H28 in accordance with the details and including bolting angles for connection to exposed roof framing. Completed units shall be hot-dip galvanized and bolt fixed with 8mm diam. galvanized bolts with washers, through each portal frame. H29.2 SUMMER TERRACES Refer to Landscape Consultant drawings for extent of works. H29.3 PLANTER CONTAINER INSERTS Refer to Landscape Consultant drawings for extent of works. H30. VEGETATION MESH SUPPORT SYSTEM H30.1 PLANT CLIMBING TRELLIS MG.02 Provide full height steel cable attached to the level 1 concrete slab and roof level steel beams, restrained only at light shelf edges. Cable system shall be supplied and installed by Ronstan International Pty Ltd or equivalent comprising Stranded stainless steel ropes in pairs, raking as per north elevation and details, with bolted top level connections, base level turn-buckle tensioners and intermediate eyebolt spaces. For stainless steel climbing mesh “X-TEND” to be clipped to the cable system, complete with supporting cross bars, refer to Landscape Works. Contact Ronstan International on: Telephone 03 8599 0000 Fax 03 8599 0099 E-mail [email protected] Att. Mr Don Hart


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H30.2 ROOF WIRES MG.02 Provide stainless steel cable system over the Mechanical Plant Room roofs and open pergola area attached to the exposed purlin system and to the layout indicated. Cable system shall be supplied and installed by Ronstan International Pty Ltd comprising stranded stainless steel ropes at nominal 300mm centres in groups symmetrically about each main structural pergola frame. Cables shall pass through purlin webs with nylon washers to eliminate rubbing and fitted with turn buckle tensioners at base level points. Co-ordinate the installation with other roof mounted elements – voltaic cell array, maintenance walkways, etc. Contact Ronstan International as for Clause H30.1. H30.3 PLANT CLIMBING TRELLIS MM.01 Install extruded mesh to the South wall of each Summer Terrace. Fix to steel tube wall framing with galvanized saddle brackets, mounted on spacer blocks for plant clearance. Set brackets out to even spacing and alignment both ways. H31. CHILLED BEAM ENCLOSURES Refer to Ceiling Finishes Section P. H32. EXTERNAL LIGHT REFLECTING SHELVES PP.02 Install into the structural channel framing of the external shelves an exterior grade glass fibre fabric. Material shall be white with shading coefficient of 0.22 or other approved fabric with matching characteristics. (refer to materials specification) Fit perimeter channel fixing frame with fabric held in by continuous rolled in plastic rod, the fabric stretched taut. Fixing channels shall be in natural anodized aluminium with one leg extended for bolt fixing to the frame webs. Provide a warranty in the Principal’s name guaranteeing the materials and installation against defect for a period of 5 years from the date of Practical Completion. H33. SHOWER TOWERS PP.01 Provide 3 storey high tubular plastic water shower containment towers to the south facade. Units shall be supplied and installed by Shade Structures Birdair comprising transparent plastic towers fabricated in Covertex ETFE membrane, thickness 200Um, tapered at the lower end and securely held into projecting steel outriggers as shown on the details.


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H33. SHOWER TOWERS PP.01 (Continued) Extend towers into concealed water discharge plenum. (FS08) Contact Shade Structures Birdair on: Telephone 1800 777 727 Fax (03) 8379 9240 Email [email protected] ATT. Mr Dean Spencely H34. WATER ASSEMBLY ENCLOSURE Construct chain mesh enclosure including double gates where shown on the plans. Framing: Gate posts: 60.3 x 2.9mm CHS Intermediate / wall posts: 42.4 x 2.6mm CHS Mesh: 3.15mm woven wire Gates: Frame: 33.7 x 2mm CHS Mesh: as above Finish: All items natural galvanised. Fixing: Provide bolting plates to posts and bolted saddle brackets to wall posts Height: 2.4m Locking: Provide galvanised heavy duty pad bolt to take Podlock in hardware supply H35. BIKE RACKS Provide wall-mounted racks to Basement 2 level to the extent shown on the plan. Units shall be supplied and installed by Bicycle Victoria, type “Ned Kelly”, arranged at alternating heights, finished in nylon sheathing to selected colour. Installation shall comply with AS 2890 for Class Secure Parking. Contact Bicycle Victoria on: Telephone (03) 8636 8888 Fax (03) 8636 8800 Email [email protected] H36. INTERNAL ROLLER SHUTTERS Smoothline aluminium roller shutters, 63 series as manufactured by Airport Doors or equivalent. Install to garbage bin recesses, as scheduled. Curtain The curtain shall be constructed using 63mm by 1.5mm thick aluminium interlocking slats. Each alternative slat shall be fitted with nylon end clips to prevent lateral movement. Extruded slats to have punched rectangular pattern in each slat, to the extent detailed. Final pattern to be confirmed.


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H36. INTERNAL ROLLER SHUTTERS (Continued) Bottom Rail The bottom rail shall be specially extruded heavy duty interlocking aluminium angle section. Guide Channels Guide Channels shall be manufactured from heavy duty aluminium channel section matched to suit doorway. Finish All aluminium surfaces to be natural matt anodised. Roller Drum The drum shall be a steel cylindrical tube encasing helical torsion springs matched to suit door weight and size and revolving on a steel axle, designed for minimal deflection over the door width. Support Brackets The support brackets shall be fabricated from mild steel plate having a minimum thickness of 6mm and matched to the door weight and size with provision made for fixing to building structure. Operation The shutters shall be motorised and electrically operated. Refer to Electrical Engineering drawings. Warranty The roller shutters shall be warranted against defects in materials, workmanship and performance for a period of 2 years in accordance with the requirements of the contract. H37. INTERNAL ROLLER BLINDS FX.01 Installation Installation shall be by manufacturer trained, skilled tradesmen and installed in strict accordance with manufacturer’s recommendations. All items installed, plumbed, squared, rigidly coupled and adequately anchored. Maintaining uniform clearances, accurate alignment/levels, and parallel with the window plane. Fabric shall not travel more than 5mm in any direction after installation. The shading system and fabric element shall be pre-measured on site and manufactured off-site. Fabrication before site measure is not acceptable. Commissioning, Adjusting and Cleaning Adjust shades and operating components as required ensuring smooth, trouble free operation without binding.


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H37. INTERNAL ROLLER BLINDS FX.01 (Continued) Adjust fabric element to hang flat without buckling or distortion. Clean all systems, components and surrounding work areas. Replace work that cannot be satisfactorily repaired, adjusted, or cleaned. Provide roller blinds of types and in locations noted in the schedules and on the details. Blinds shall be as manufactured by Reflex Shading Systems, Helioscreen Australia Pty Limited or other equal approved and shall be installed to manufacturer’s instructions by a specialist subcontractor nominated by the blind manufacturer. Blind Type To North Facade Windows �� Electrically operated, interior fitted, refer to architectural drawings for details. Blind Fabric �� The fabric shall have a flame retardancy as required by the Building Regulations in

accordance with AS 1530.2/3. �� The blind fabric shall be “Sunpro Weave 3000 P01 Pearl White” PVC coated polyester

or other equal approved, with a maximum weave openness of 18% - 20%. Submittals �� Submit fully detailed shop drawings showing all components, finishes and perimeter

construction conditions, installation, wiring and controls, and all applicable dimensions. �� Submit samples of the specified sections of fascia, closure, pelmet, housing, trim, roller

tube, hembar, operating hardware, brackets and side channel for review. �� Submit copy of operating and maintenance instructions including, name and contact

details of original manufacturer and local service company. �� Submit copy of periodical maintenance contract for approval. Inspection and Preparation Verify that all substrate and framing necessary to carry shade assembly hardware is properly secured and ready to accept the product. Allow for total compatibility between motor, electrical system and timeclock control system, for end of day retraction. Verify that electrical and control wiring (by others) is completed correctly. Notify Superintendent in writing of any deficiencies in the work of other trades that would affect the integrity of the shading system. Make accurate measurements at the site before fabrication. Check layout of glazing, framing sections, spans, and loading capabilities for tolerance to shading system installation. Delivery Storage and Handling Do not deliver to site until areas to receive shading system are completely finished, all walls, floors and ceilings completed and painted.


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H37. INTERNAL ROLLER BLINDS FX.01 (Continued) Deliver materials in original protective wrappings or containers, with manufacturers labels, sealed and intact. Handle and store materials according to manufacturer’s recommendations, protecting materials and finishes from damages, marring of finishes or soiling. Hardware Provide all hardware for the satisfactory operation of the blinds. Allow for 1 no. electric motor for each blind. Include all components for unit operation. All fasteners and fixings shall be non-corrosive and installed to manufacturer’s recommendations. Finishes All exposed aluminium surfaces shall be powdercoat colour, to be advised. No exposed unfinished metal surfaces will be accepted. Fabrication Shading system components shall be manufactured and assembled allowing for installation techniques to suit project requirements e.g. motor grouping, positioning etc. All finished assemblies shall be, square, true to size and free from distortion, twist, or other defects that could affect their strength, operation or appearance. Factory applied finish shall be uniform, smooth and without blemishes Warranty Submit a warranty in the name of the Principal against faulty materials, workmanship and operation of the blinds for a period of not less than 5 years from the date of Practical Completion of the Contract. H38. SUNDRY METALWORK Supply all fastenings such as nails, screws, bolts, packers and other sundry metalwork items in this or other trades and incidental to the proper completion of the Works. Supply and fix minor steel framing sections of m.s. flats, angles and channels required by the details for supports as required, in galvanized finish to exposed and roof supporting items, otherwise primer coated in accordance with Claude H9. Supply and install sub floor ventilation tubes built into masonry sleeper walls. For built-in flooring division strips refer to Section P.


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H39. FLOOR DIVIDING STRIPS Unless otherwise noted, provide stainless steel dividing strips at junction between differing floor finishes. Strip shall be 3mm thick type 304 stainless steel epoxy grouted in saw cut in slab and set to finish flush with adjacent floor finishes. Where necessary build up substrate with Ardit or similar underlay to ensure flush finish on both sides of dividing strip.

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