JOSEPH A. C MAYOR

Addendum No. 3, IFB 20-58

Somerville City Hall • 93 Highland Avenue • Somerville, Massachusetts 02143 (617) 625-6600, Ext. 3400 • TTY: (617) 666-0001 • Fax: (617) 625-1344

www.ci.somerville.ma.us 1

CITY OF SOMERVILLE, MASSACHUSETTS

Department of Purchasing JOSEPH A. CURTATONE

MAYOR

To: Prospective Bidders IFB 20-58, Parking Repairs and Waterproofing – Buena Vista Garage From: Angela M. Allen, Director of Purchasing Date: March 10, 2020 Re: Responses to Questions from Prospective Applicants; Corrections of Mathematical Errors on Two Filed Sub-bids

Addendum No. 3 to IFB 20-58

The City is issuing this addendum to address the questions received by prospective applicants. Refer to the following table. Two of the Filed Sub-bids (one for Division 7 and one for Division 22) contained mathematical errors that were clearly evident on the face of those bids. Pursuant to the General Terms (Section 1.6) of IFB 20-58, “If a mistake and the intended bid are clearly evident on the face of the bid document, the mistake will be corrected to reflect the intended correct bid, and the proposer will be notified in writing; the proposer may not withdraw the bid.” The bids in question and the corresponding bid tabulations have been corrected and are appended to this addendum.

**ACKNOWLEDGE THIS ADDENDUM** Please sign below and include this form in your application package.

XName of Authorized SignatoryTitle of Authorized Signatory

http://www.ci.somerville.ma.us/




Answers to Questions from Prospective Bidders

Item Number Question Answer 1 Can the General Contractor bid date be extended? Yes, the general bid due date has been extended to

March 13, 2020 at 11:00 AM. 2 At the Pre-Bid, it was observed there is existing

shoring under two inverted-tee beams, which were installed by one of the bidders for this project. Should the shoring towers need to be replaced by that of the newly contracted GC, then the circumstance provides the shoring contractor (current bidder as well) an unreasonable advantage in time and material costs on shoring installation and shoring design-engineering costs. Is there a way to address this to make it a level field for everyone?

After consulting the Mass AG’s office, it was determined that if the contract for rental of the temporary shoring equipment placed during the previous emergency work remains under that separate contract and is removed under that contract when it is no longer needed, there is no unreasonable advantage to any of the bidders, even if the contractor that performed the emergency work submits a bid. Attached, submitted as part of this addendum, are the documents used for the emergency work for reference. Additional shoring required to complete new work will be part of this contract resulting from IFB 20-58.

3 Regarding Detail 1/S-400, is the elevation view depicting 18.5 kips per post or per assembly unit?

The 18.5 kips service load is per assembly (both posts as shown in the elevation view).

4 Based on the plan drawing S-102 and the shoring detail S-400, are the shoring layouts designed to withstand both ST and IT repairs where they may occur in the same location?

Yes, the shoring is schematically designed to support the structure in both repair instances. It is the responsibility of the contractor to evaluate the need for, designing, and providing additional shoring as required to safely support the existing structure.

5 The specifications specify all epoxy coated WWF. The drawings do not explicitly say epoxy coated. Please confirm all new reinforcement called out in the concrete details shall be epoxy coated.

Yes, all WWF shall be epoxy coated as specified in the specification.

6 Is there a detail associated with bid item 20 (Crossover topping at inverted-tee beam)?

The crossover topping at the inverted-tee beams shall be repaired in accordance with Details 9, 12/S-302 and 15/S-303.

7 Regarding Detail 18/S-303, please clarify how the 10 lf of repair is measured. Is it 10 lf across the bottom?

The 10 lf of repair quantity is measured along the height (vertical dimension) at the back of the double-tee stem. The depth of the repair shall extend at a minimum ¾” behind the existing reinforcement.

8 Is Detail 21/S-303 – Type 2 a complete repair around the entire perimeter in all repair locations?

No, it is not necessarily. Please see S-100 for the approximate extents of the repairs at the concrete column encasements.

9 Regarding Detail 24/S-303, please confirm if there is only one (1) L6x4x3/8x6” mounted to each tee stem, or if there are (2) angles mounted to each tee stem on either side of the C8x11.5 channel.

Yes, there is only (1) angle mounted to the double-tee beam stem at each end of the channel.

10 Does the existing subframing within the garage need to be removed to perform the repairs?

The existing channels at the subframes need to be removed to perform the required repairs. In addition, the existing welds between the double-tee beam flanges need to be broken to perform the repairs. The existing angles may remain. The channels shall be reinstalled once the repairs are completed. The connections at the double-tee beam flanges will be rewelded once the repairs are completed as well. These associated costs will be included as part of the concrete repair costs. See the attached drawing S-101 with revised note for additional information.





Item Number Question Answer 11 Regarding Detail 6/C-300, what is the size/with of

the 4’ deep footing? Is it (2) 18” dia. footing for the (2) new bollards?

Yes, it is the footing for the bollards.


Somerville IFB 20‐58 Parking Repairs and Waterproofing ‐ Buena Vista GarageFILED SUB BIDS ‐ Opened 3/5/2020 at 2:00 p.m.

Bidder Name Base Bid Amount Alternates N/A TotalGeneral Bidder

Restrictions/Exclusions

TWC $302,800.00 $302,800.00 None

Contracting Specialists, Inc. $206,471.00 $206,471.00 Restricted to Self

P.J. Spillane Co., Inc. $230,000.00 $230,000.00 Restricted to Self

Structural Preservation Systems, LLC $224,015.00 $224,015.00 None

Heritage Restoration, LLC $138,651.00 $138,651.00 Restricted to Self

ACME Waterproofing Company, Inc. $237,714.00 $237,714.00 Restricted to Self

Chapman Waterproofing Company $267,890.00 $267,890.00 None

Commercial Masonry Corporation $180,800.00 $180,800.00 Restricted to Self

DIVISION 7 ‐ THERMAL & MOISTURE PROTECTION (corrected)

Somerville IFB 20‐58 Parking Repairs and Waterproofing ‐ Buena Vista GarageFILED SUB BIDS ‐ Opened 3/5/2020 at 2:00 p.m.

Bidder Name Base Bid Amount Alternates N/A TotalGeneral Bidder

Restrictions/Exclusions

Richman Corp. $116,400.00 $116,400.00 None

Robert W. Irvine & Sons $71,068.00 $71,068.00 None

Araujo Bros. Plumbing & Heating, Inc. $96,000.00 $96,000.00 None

DIVISION 22 ‐ PLUMBING (corrected)

FORM FOR FILED SUB·BID Division 7 - Thermal and Moisture Protection

CITY OF SOMERVILLE JFB 20-58

PARKING REPAIRS AND WATERPROOFING-BUENA VISTA PARKING GARAGE SOMERVILLE, MASSACHUSETTS

FORM FOR FILED SUB-BID - DUE: March 5, 2020 - 2:00 PM ET

A. Pursuant to and in compliance with your Invitation to Bid relating thereto, the undersigned, ACME WATERPROOFING COMPANY. INC. having visited the site, familiarized himself with the conditions present, and carefully examined the Contract Documents, together with all Addenda issued and received prior to closing time for receipt of Bids as prepared by the Architect,

Simpson, Gumpertz & Heger, Inc. 800 Boylston Street, Suite 2320 Boston, MA 02199

hereby offers and agrees to provide all labor and materials required for construction of

DIVISION 7 -Thermal and Moisture Protection Section 010001 ------------------Buen a Vista Garage Repairs Somerville, MA

to the satisfaction of the Owner and the Architect and in accordance with the accompanying Contract Documents with all addenda, for the Contract Price specified below, subject to additions and deductions according to the terms of the Contract Documents.

B. This Bid includes Addenda numbered ONE, DATED MARCH 3, 2020

C. The proposed Contract Price is:

Sub-Trade Name of Sub-Bidder

Base Bid Amount (Total from items from Division I Name of Trade below)

7, WATERPROOFIND, DAMPROOFING ACME WATERPROOFING COMPANY, INC. $ 352,274.00 CAULKING

The proposed Contract Prices for each item are as follows (see Basis of Payment for additional information and requirements for each item):

Description

DMsion I

I. Project Mobilization

Specification or Drawing

Divisions 0 and I

Quantity Unit Price Bid Price

I Is s 6,700.00

$237,714

amallen

Cross-Out

amallen

Inserted Text

Description Specification or Quantity Unit Price Bid Price Drawing

2. Project General Requirements Divisions I Is s 3,500.00 0 and I

DMsion 7

3. Hot-Applied Waterproofing- Remove and 071300 I ls s 52,500.00 Replace the Waterproofing System and Details 1-3/WP-100, 1-Expansion Joint at the Plaza Area 6/WP-200. 7-9/WP-20 I

4. Vehicular· T raflic-Bearing Waterproofing - 071816 I Is s 22,360.00 install at Crossover at Inverted-Tee Beams Details 1-5/S-500

5. Penetrating Sealer - Install nt Upper Level 071900 I ls s 21,225.00

6. Joint Sealants - Remove ood Replace: 079200 I Is s 38,424.00 ~tween Double-Tee Beams at Upper Detail 6/S-500 Level

7. Joint Sealants - Remove and Replace at 079200 I Is s 17,930.00 Vertical Facade Joints Detail 7/S-500

&. Joint Sealants - Rout and Seal Cracks 079200 4.500 If s 9.50 s 42,750.00 Detail 8/S-500

9. Joint Sealants - Rout and Seal Cracks at 079200 201f $ 70.00 s 1,400.00 Column Encasements Detail 8/S-500

10. Expansion Jo in ts - Remove and Replace al 079500 351f s 755.00 s 26,425.00 Upper-Level Entrance Detail 9/S-500

11. Expansion Joints - Remove and Replace 079500 100 If s 45.00 s 4,500.00 the Termination Bars

TOTAL s 352,274.00

Should certain additional work be required, or should the quantities of certain classes of work be increased or decreased from those required by the Contract Documents, by authorization of the City, unit prices listed on the attached "Unit Price Form" (and listed above) shall at the option of the City be the basis of payment to the Contractor or credit to the City, for such increase or decrease in the work. The unit prices shall represent the exact net amount per unit to be paid the Contractor (in the case of addition or increase) or to be refunded the City (in the case of decrease). The unit prices shall remain firm regardless of variations between the estimated and actual quantities. The quantities appearing in the schedules in the Contract Documents are approximate only and are prepared for the comparison of bids. Contractually noted adjustments will be allowed for overhead, profit, insurance or other direct or indirect expenses of the Contractor or Subcontractors.

D. The Basis for Payment is as follows:

1. Removal and replacement of waterproofing system at the plaza area over the double-tee beams shall be paid for at the Contract lump-sum price. Cost shall include all work associated with preparing substrate surface, install a new hotapplied fluid waterproofing system, installing a new topping slab, installing a providing new sealant joints where existing joints were removed, and installing a new expansion joint.

2. Installation of vehicular-traffic-bearing waterproofing at the crossover topping at the inverted-tee beams shall be paid for at the Contract

$237,714

amallen

Cross-Out

$116,400

One hundred sixteen thousand four hundred dollars

$116,400

LEGEND: REPAIR DETAIL

S-101

UPPER LEVELTOPSIDE REPAIR

PLAN

BUENA VISTAPARKING GARAGE

2020 PARKINGGARAGE REPAIRS AND

WATERPROOFING52 Holland StreetSomerville, MA

BID

SET

Project No.

Drawing No.

Drawn Scale

DateChecked

Drawing Title

Project

No. DescriptionDate

Seal

Consultant

By

Approved

SIMPSON GUMPERTZ & HEGEREngineering of Structuresand Building Enclosures

Simpson Gumpertz & Heger Inc.800 Bolyston Street, Suite 2320Boston, Massachusetts 02199main: 617.963.5400 fax: 617.963.5401www.sgh.com

BostonChicagoHouston

Los AngelesNew York

San FranciscoWashington, DC

1 Addendum No. 13/3/20 BBR



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ENTRANCE

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EXIT

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REMOVE AND REPLACE (E) JOINT SEALANT BETWEEN DOUBLE-TEE BEAM FLANGES, ENDS OF DOUBLE-TEE BEAMS, AND AT THE PERIMETER OF THE DECK. WELD MISSING OR BROKEN CONNECTIONS AS DIRECTION BY THE ENGINEER IN THE FIELD, TYP.

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ROUT AND SEAL CRACKS ON ALL THE DOUBLE-TEE FLANGES, TYP.

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(E) CONCRETE CURB

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(E) BRICK PAVERS

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(E) AIR VENT, TYP.

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(E) MASONRY WALL

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(E) CONCRETE CURB

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(E) ADJACENT GARAGE BELOW OFFICE BUILDING

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WP-200

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WP-100

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INSTALL STEEL SUPPLEMENTAL FRAMES ALONG THE JOINT AT LOCATIONS IDENTIFIED BY THE ENGINEER (NO. OF FRAMES ARE PROVIDED AT EA. JOINT). SEE DETAIL 24/S-303, TYP.

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REMOVE (E) CHANNELS AT (E) SUBFRAMING ALONG JOINT TO PERFORM CONCRETE REPAIRS. (E) SUBFRAMING ANGLES MAY REMAIN DURING REPAIR WORK. BREAK WELDS AT DOUBLE-TEE BEAM FLANGE CONNECTIONS. REINSTALL CHANNELS AND SHIM TO BOTTOM OF REPAIR PER DETAIL 24/S-303 ONCE REPAIR HAS BEEN PERFORMED. WELD DOUBLE-TEE BEAM FLANGE CONNECTIONS ONCE SUBFRAMING CHANNELS HAVE BEEN REINSTALLED. COST SHALL BE INCLUDED IN COST FOR CONCRETE REPAIR

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INDICATES APPROXIMATE LOCATION AND EXTENT OF CONCRETE REPAIR ON THE TOPSIDE OF THE DECK

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6-7,9-13/S-302

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INDICATES APPROXIMATE LOCATION AND EXTENT OF TOPSIDE CRACK TO BE ROUTED AND SEALED

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25/S-304

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8/S-500

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INDICATES APPROXIMATE LOCATION OF EXISTING DRAIN TO BE REMOVED AND REPLACED (REFER TO PLUMBING DRAWINGS)

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INDICATES APPROXIMATE LOCATION FOR INSTALLATION OF SUPPLEMENTAL STEEL FRAME

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24/S-303

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NOTES: : 1. REFER TO THE TECHNICAL SPECIFICATIONS FOR THE DETAILED REFER TO THE TECHNICAL SPECIFICATIONS FOR THE DETAILED REQUIREMENTS FOR MATERIALS AND WORKMANSHIP. 2. THE CONTRACTOR SHALL FIELD-VERIFY ALL EXISTING CONDITIONS, THE CONTRACTOR SHALL FIELD-VERIFY ALL EXISTING CONDITIONS, INCLUDING THE CONFIGURATIONS OF ALL THE STRUCTURAL AND ARCHITECTURAL ELEMENTS AFFECTING THE WORK. 3. THE CONTRACTOR SHALL FIELD-VERIFY ALL ELEVATIONS AND THE CONTRACTOR SHALL FIELD-VERIFY ALL ELEVATIONS AND DIMENSIONS BEFORE PROCEEDING WITH CONSTRUCTION. 4. THE DRAWINGS SHOW THE APPROXIMATE LOCATION AND EXTENT THE DRAWINGS SHOW THE APPROXIMATE LOCATION AND EXTENT OF CONCRETE DETERIORATION REVEALED BY CONDITION ASSESSMENTS PERFORMED IN THE SUMMER OF 2017 ON AREAS AND ELEMENTS READILY VISIBLE OR NOT CONCEALED. THUS, THE DRAWINGS DO NOT SHOW ALL THE AREAS REQUIRING REPAIRS. THE CONTRACTOR IS RESPONSIBLE FOR VISUALLY INSPECTING AND SOUNDING ALL CONCRETE SURFACES TO DISCOVER AND REPAIR ALL AREAS OF DETERIORATED CONCRETE. THE ENGINEER WILL APPROVE ALL THE REPAIR LOCATIONS. 5. WHERE DEMOLITION RESULTS IN REPAIR GEOMETRIES THAT DIFFER WHERE DEMOLITION RESULTS IN REPAIR GEOMETRIES THAT DIFFER FROM THOSE SHOWN IN THE DETAILS OF THE DRAWINGS, PROVIDE THE REPAIR GEOMETRY TO THE ENGINEER FOR REVIEW PRIOR TO COMPLETING THE REPAIR. 6. REFER TO PROPOSED PHASING PLANS ON PH-1OO.REFER TO PROPOSED PHASING PLANS ON PH-1OO.

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TYPICAL INVERTED-TEE BEAM PROFILE

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DOUBLE-TEE BEAM, TYP.

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INVERTED-TEE BEAM

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JGT

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BBR

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SAC

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190065.00

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3/10/2020

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AS NOTED

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i:\bos\projects\2019\190065.00-park\drawings\working_set\190065.00 - buena vista parking garage - 2019 repairs.dwg 9-Mar-20 7:06 PM by:benjamin b. rybaltowski 9-Mar-20 7:06 PM by:benjamin b. rybaltowski9-Mar-20 7:06 PM by:benjamin b. rybaltowski 7:06 PM by:benjamin b. rybaltowski7:06 PM by:benjamin b. rybaltowski by:benjamin b. rybaltowskibenjamin b. rybaltowski

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HOLLAND ST.DAVIS SQ.

MEA

CHAM

RD.

BUENA

VISTA

RD.

PROJECT SITE

C-001

COVER SHEET

BUENA VISTA PARKING GARAGE2019 TEMPORARY STABILIZATION

52 Holland Street, Somerville, MA

DRAWING LISTC-001 COVER SHEETS-100 UPPER LEVEL TOPSIDE STABILIZATION PLANS-101 UPPER LEVEL UNDERSIDE STABILIZATION PLANS-200 DETAILS


2019 TEMPORARYSTABILIZATION

52 Holland StreetSomerville, MA

BID

SET

Project No.

Drawing No.

Drawn Scale

DateChecked

Drawing Title

Project

No. DescriptionDate

Seal

Consultant

By

Approved




Los AngelesNew York


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GENERAL NOTES GENERAL REQUIREMENTS A. Prior to bidding, all bidders must view the premises and note conditions at and Prior to bidding, all bidders must view the premises and note conditions at and to bidding, all bidders must view the premises and note conditions at and to bidding, all bidders must view the premises and note conditions at and bidding, all bidders must view the premises and note conditions at and bidding, all bidders must view the premises and note conditions at and all bidders must view the premises and note conditions at and all bidders must view the premises and note conditions at and bidders must view the premises and note conditions at and bidders must view the premises and note conditions at and must view the premises and note conditions at and must view the premises and note conditions at and view the premises and note conditions at and view the premises and note conditions at and the premises and note conditions at and the premises and note conditions at and premises and note conditions at and premises and note conditions at and and note conditions at and and note conditions at and note conditions at and note conditions at and conditions at and conditions at and at and at and and and around where work is to be performed. Bidders shall fully inform themselves of all where work is to be performed. Bidders shall fully inform themselves of all where work is to be performed. Bidders shall fully inform themselves of all work is to be performed. Bidders shall fully inform themselves of all work is to be performed. Bidders shall fully inform themselves of all is to be performed. Bidders shall fully inform themselves of all is to be performed. Bidders shall fully inform themselves of all to be performed. Bidders shall fully inform themselves of all to be performed. Bidders shall fully inform themselves of all be performed. Bidders shall fully inform themselves of all be performed. Bidders shall fully inform themselves of all performed. Bidders shall fully inform themselves of all performed. Bidders shall fully inform themselves of all Bidders shall fully inform themselves of all Bidders shall fully inform themselves of all shall fully inform themselves of all shall fully inform themselves of all fully inform themselves of all fully inform themselves of all inform themselves of all inform themselves of all themselves of all themselves of all of all of all all all conditions affecting the work of this project. B. The dimensions of the parking garage and typical sections are approximate. The The dimensions of the parking garage and typical sections are approximate. The dimensions of the parking garage and typical sections are approximate. The dimensions of the parking garage and typical sections are approximate. The of the parking garage and typical sections are approximate. The of the parking garage and typical sections are approximate. The the parking garage and typical sections are approximate. The the parking garage and typical sections are approximate. The parking garage and typical sections are approximate. The parking garage and typical sections are approximate. The garage and typical sections are approximate. The garage and typical sections are approximate. The and typical sections are approximate. The and typical sections are approximate. The typical sections are approximate. The typical sections are approximate. The sections are approximate. The sections are approximate. The are approximate. The are approximate. The approximate. The approximate. The The The contractor shall field verify all existing conditions, including the configuration of all shall field verify all existing conditions, including the configuration of all shall field verify all existing conditions, including the configuration of all field verify all existing conditions, including the configuration of all field verify all existing conditions, including the configuration of all verify all existing conditions, including the configuration of all verify all existing conditions, including the configuration of all all existing conditions, including the configuration of all all existing conditions, including the configuration of all existing conditions, including the configuration of all existing conditions, including the configuration of all conditions, including the configuration of all conditions, including the configuration of all including the configuration of all including the configuration of all the configuration of all the configuration of all configuration of all configuration of all of all of all all all structural, architectural, mechanical, and plumbing elements affecting the work. C. The Drawings show the approximate location of concrete deterioration. The Engineer The Drawings show the approximate location of concrete deterioration. The Engineer Drawings show the approximate location of concrete deterioration. The Engineer Drawings show the approximate location of concrete deterioration. The Engineer show the approximate location of concrete deterioration. The Engineer show the approximate location of concrete deterioration. The Engineer the approximate location of concrete deterioration. The Engineer the approximate location of concrete deterioration. The Engineer approximate location of concrete deterioration. The Engineer approximate location of concrete deterioration. The Engineer location of concrete deterioration. The Engineer location of concrete deterioration. The Engineer of concrete deterioration. The Engineer of concrete deterioration. The Engineer concrete deterioration. The Engineer concrete deterioration. The Engineer deterioration. The Engineer deterioration. The Engineer The Engineer The Engineer Engineer Engineer will identify the locations requiring concrete removal, patching, netting, and installation identify the locations requiring concrete removal, patching, netting, and installation identify the locations requiring concrete removal, patching, netting, and installation the locations requiring concrete removal, patching, netting, and installation the locations requiring concrete removal, patching, netting, and installation locations requiring concrete removal, patching, netting, and installation locations requiring concrete removal, patching, netting, and installation requiring concrete removal, patching, netting, and installation requiring concrete removal, patching, netting, and installation concrete removal, patching, netting, and installation concrete removal, patching, netting, and installation removal, patching, netting, and installation removal, patching, netting, and installation patching, netting, and installation patching, netting, and installation netting, and installation netting, and installation and installation and installation installation installation of steel subframing. D. Discrepancies and conflicts between the repairs and new elements, and the existing Discrepancies and conflicts between the repairs and new elements, and the existing and conflicts between the repairs and new elements, and the existing and conflicts between the repairs and new elements, and the existing conflicts between the repairs and new elements, and the existing conflicts between the repairs and new elements, and the existing between the repairs and new elements, and the existing between the repairs and new elements, and the existing the repairs and new elements, and the existing the repairs and new elements, and the existing repairs and new elements, and the existing repairs and new elements, and the existing and new elements, and the existing and new elements, and the existing new elements, and the existing new elements, and the existing elements, and the existing elements, and the existing and the existing and the existing the existing the existing existing existing structure shall be brought to the attention of the Engineer prior to the fabrication shall be brought to the attention of the Engineer prior to the fabrication shall be brought to the attention of the Engineer prior to the fabrication be brought to the attention of the Engineer prior to the fabrication be brought to the attention of the Engineer prior to the fabrication brought to the attention of the Engineer prior to the fabrication brought to the attention of the Engineer prior to the fabrication to the attention of the Engineer prior to the fabrication to the attention of the Engineer prior to the fabrication the attention of the Engineer prior to the fabrication the attention of the Engineer prior to the fabrication attention of the Engineer prior to the fabrication attention of the Engineer prior to the fabrication of the Engineer prior to the fabrication of the Engineer prior to the fabrication the Engineer prior to the fabrication the Engineer prior to the fabrication Engineer prior to the fabrication Engineer prior to the fabrication prior to the fabrication prior to the fabrication to the fabrication to the fabrication the fabrication the fabrication fabrication fabrication and construction of dependent work. E. Phased Construction Phased Construction 1. The Work shall be conducted in phases to maintain egress, access, and parking The Work shall be conducted in phases to maintain egress, access, and parking throughout construction. 2. The Contractor shall provide proposed phasing plans and an overall project The Contractor shall provide proposed phasing plans and an overall project schedule for Owner review and approval. SCOPE OF WORK A. The work contemplated by the Contract Documents includes the work of all trades The work contemplated by the Contract Documents includes the work of all trades work contemplated by the Contract Documents includes the work of all trades work contemplated by the Contract Documents includes the work of all trades contemplated by the Contract Documents includes the work of all trades contemplated by the Contract Documents includes the work of all trades by the Contract Documents includes the work of all trades by the Contract Documents includes the work of all trades the Contract Documents includes the work of all trades the Contract Documents includes the work of all trades Contract Documents includes the work of all trades Contract Documents includes the work of all trades Documents includes the work of all trades Documents includes the work of all trades includes the work of all trades includes the work of all trades the work of all trades the work of all trades work of all trades work of all trades of all trades of all trades all trades all trades trades trades required and all labor, equipment, materials, access, and supervision necessary and and all labor, equipment, materials, access, and supervision necessary and and all labor, equipment, materials, access, and supervision necessary and all labor, equipment, materials, access, and supervision necessary and all labor, equipment, materials, access, and supervision necessary and labor, equipment, materials, access, and supervision necessary and labor, equipment, materials, access, and supervision necessary and equipment, materials, access, and supervision necessary and equipment, materials, access, and supervision necessary and materials, access, and supervision necessary and materials, access, and supervision necessary and access, and supervision necessary and access, and supervision necessary and and supervision necessary and and supervision necessary and supervision necessary and supervision necessary and necessary and necessary and and and incidental to the work indicated. The following descriptions of the work represent a to the work indicated. The following descriptions of the work represent a to the work indicated. The following descriptions of the work represent a the work indicated. The following descriptions of the work represent a the work indicated. The following descriptions of the work represent a work indicated. The following descriptions of the work represent a work indicated. The following descriptions of the work represent a indicated. The following descriptions of the work represent a indicated. The following descriptions of the work represent a The following descriptions of the work represent a The following descriptions of the work represent a The following descriptions of the work represent a following descriptions of the work represent a following descriptions of the work represent a descriptions of the work represent a descriptions of the work represent a of the work represent a of the work represent a the work represent a the work represent a work represent a work represent a represent a represent a a a brief summary of the project. For additional and more complete information, refer summary of the project. For additional and more complete information, refer summary of the project. For additional and more complete information, refer of the project. For additional and more complete information, refer of the project. For additional and more complete information, refer the project. For additional and more complete information, refer the project. For additional and more complete information, refer project. For additional and more complete information, refer project. For additional and more complete information, refer For additional and more complete information, refer For additional and more complete information, refer For additional and more complete information, refer additional and more complete information, refer additional and more complete information, refer and more complete information, refer and more complete information, refer more complete information, refer more complete information, refer complete information, refer complete information, refer information, refer information, refer refer refer to the Drawings and Specifications. 1. Project Mobilization Project Mobilization a. This work shall include General Contractor and subcontractor mobilization This work shall include General Contractor and subcontractor mobilization work shall include General Contractor and subcontractor mobilization work shall include General Contractor and subcontractor mobilization shall include General Contractor and subcontractor mobilization shall include General Contractor and subcontractor mobilization include General Contractor and subcontractor mobilization include General Contractor and subcontractor mobilization General Contractor and subcontractor mobilization General Contractor and subcontractor mobilization Contractor and subcontractor mobilization Contractor and subcontractor mobilization and subcontractor mobilization and subcontractor mobilization subcontractor mobilization subcontractor mobilization mobilization mobilization costs. Include permits, temporary offices, bonding costs, etc. 2. Project General Requirements Project General Requirements a. This work shall include all miscellaneous work associated with the completion This work shall include all miscellaneous work associated with the completion work shall include all miscellaneous work associated with the completion work shall include all miscellaneous work associated with the completion shall include all miscellaneous work associated with the completion shall include all miscellaneous work associated with the completion include all miscellaneous work associated with the completion include all miscellaneous work associated with the completion all miscellaneous work associated with the completion all miscellaneous work associated with the completion miscellaneous work associated with the completion miscellaneous work associated with the completion work associated with the completion work associated with the completion associated with the completion associated with the completion with the completion with the completion the completion the completion completion completion of the work in accordance with the Construction Documents. This shall the work in accordance with the Construction Documents. This shall the work in accordance with the Construction Documents. This shall work in accordance with the Construction Documents. This shall work in accordance with the Construction Documents. This shall in accordance with the Construction Documents. This shall in accordance with the Construction Documents. This shall accordance with the Construction Documents. This shall accordance with the Construction Documents. This shall with the Construction Documents. This shall with the Construction Documents. This shall the Construction Documents. This shall the Construction Documents. This shall Construction Documents. This shall Construction Documents. This shall Documents. This shall Documents. This shall This shall This shall This shall shall shall include but not be limited to incidental shoring, barricades, cleanup, dust but not be limited to incidental shoring, barricades, cleanup, dust but not be limited to incidental shoring, barricades, cleanup, dust not be limited to incidental shoring, barricades, cleanup, dust not be limited to incidental shoring, barricades, cleanup, dust be limited to incidental shoring, barricades, cleanup, dust be limited to incidental shoring, barricades, cleanup, dust limited to incidental shoring, barricades, cleanup, dust limited to incidental shoring, barricades, cleanup, dust to incidental shoring, barricades, cleanup, dust to incidental shoring, barricades, cleanup, dust incidental shoring, barricades, cleanup, dust incidental shoring, barricades, cleanup, dust shoring, barricades, cleanup, dust shoring, barricades, cleanup, dust barricades, cleanup, dust barricades, cleanup, dust cleanup, dust cleanup, dust dust dust and fume control, layout, equipment, waste disposal, documentation, fume control, layout, equipment, waste disposal, documentation, fume control, layout, equipment, waste disposal, documentation, control, layout, equipment, waste disposal, documentation, control, layout, equipment, waste disposal, documentation, layout, equipment, waste disposal, documentation, layout, equipment, waste disposal, documentation, equipment, waste disposal, documentation, equipment, waste disposal, documentation, waste disposal, documentation, waste disposal, documentation, disposal, documentation, disposal, documentation, documentation, documentation, obstruction removal and replacement, monthly as-built documents, and removal and replacement, monthly as-built documents, and removal and replacement, monthly as-built documents, and and replacement, monthly as-built documents, and and replacement, monthly as-built documents, and replacement, monthly as-built documents, and replacement, monthly as-built documents, and monthly as-built documents, and monthly as-built documents, and as-built documents, and as-built documents, and documents, and documents, and and and temporary heat, water, and utilities. B. Shoring: Shoring: 1. The Contractor shall install shoring at locations identified by the Engineer. The Contractor shall install shoring at locations identified by the Engineer. D. Concrete Patching: Concrete Patching: 1. Remove loose concrete at the topside of the double-tee beams and patch holes Remove loose concrete at the topside of the double-tee beams and patch holes and cavities at locations shown on the Drawings and at locations identified by the Engineer. 2. Remove loose concrete at the underside double-tee beams and inverted-tee Remove loose concrete at the underside double-tee beams and inverted-tee beams at locations shown on the Drawings and at locations identified by the Engineer. 3. Install netting at locations shown on the Drawings. Install netting at locations shown on the Drawings. E. Metal Fabrication: Metal Fabrication: 1. Install supplemental steel subframing at locations identified by the Engineer. Install supplemental steel subframing at locations identified by the Engineer. MATERIALS A. Concrete Patching Material: Concrete Patching Material: 1. MasterEmaco T1060 by BASF Corporation, Shakopee, Minnesota. MasterEmaco T1060 by BASF Corporation, Shakopee, Minnesota. 2. Approved equivalent. Approved equivalent. B. Debris Netting Material: Debris Netting Material: 1. Heavy duty debris mesh: N1-82 in Gray by Netting Now, S. Glastonbury, Heavy duty debris mesh: N1-82 in Gray by Netting Now, S. Glastonbury, Connecticut. 2. Netting fasteners: Hilti Kwik-Con II+ 14-134 THWH, stainless steel by Hilti, Inc. Netting fasteners: Hilti Kwik-Con II+ 14-134 THWH, stainless steel by Hilti, Inc. 3. Netting Bar Stock, galvanized. Netting Bar Stock, galvanized.

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190065.00

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10/8/2019

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AS NOTED

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i:\bos\projects\2019\190065.00-park\drawings\working_set\190065.00 - buena vista parking garage - 2019 fall hazards.dwg 8-Oct-19 2:58 PM by:benjamin b. rybaltowski 8-Oct-19 2:58 PM by:benjamin b. rybaltowski8-Oct-19 2:58 PM by:benjamin b. rybaltowski 2:58 PM by:benjamin b. rybaltowski2:58 PM by:benjamin b. rybaltowski by:benjamin b. rybaltowskibenjamin b. rybaltowski


S-100

UPPER LEVELTOPSIDE

STABILIZATION PLAN




BID

SET

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Drawing No.

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DateChecked

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Project

No. DescriptionDate

Seal

Consultant

By

Approved




Los AngelesNew York


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1.1

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1/16" = 1'-0"

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UPPER LEVEL - TOPSIDE REPAIR PLAN

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ENTRANCE

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EXIT

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(E) CONCRETE CURB

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(E) BRICK PAVERS

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(E) AIR VENT, TYP.

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(E) CONCRETE APRON SLAB-ON-GRADE

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(E) MASONRY WALL

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(E) CONCRETE CURB

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(E) CONCRETE CURB

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1

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S-400

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INDICATES APPROXIMATE LOCATION AND EXTENT OF CONCRETE REMOVAL AND PATCHING ON THE TOPSIDE OF THE DECK

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2-3/S-200

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NOTES: : 1. THE CONTRACTOR SHALL FIELD-VERIFY ALL EXISTING CONDITIONS, THE CONTRACTOR SHALL FIELD-VERIFY ALL EXISTING CONDITIONS, INCLUDING THE CONFIGURATIONS OF ALL THE STRUCTURAL, ARCHITECTURAL, MECHANICAL, AND PLUMBING ELEMENTS AFFECTING THE WORK. 2. THE DRAWINGS SHOW THE APPROXIMATE LOCATION AND EXTENT THE DRAWINGS SHOW THE APPROXIMATE LOCATION AND EXTENT OF CONCRETE DETERIORATION. THE ENGINEER WILL IDENTIFY THE LOCATIONS REQUIRED CONCRETE REMOVAL, PATCHING, NETTING, AND INSTALLATION OF STEEL SUB-FRAMING.

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JGT

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16'

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32'

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48'

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64'

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116" = 1'-0" = 1'-0"

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190065.00

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10/8/2019

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AS NOTED

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S-101

UPPER LEVELUNDERSIDE

STABILIZATION PLAN




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No. DescriptionDate

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Consultant

By

Approved




Los AngelesNew York


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8.2

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8.6

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3

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1/16" = 1'-0"

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UPPER LEVEL - UNDERSIDE REPAIR PLAN

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(E) CONCRETE SPANDREL BEAM

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(E) AIR VENT, TYP.

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(E) CONCRETE INVERTED-TEE BEAM

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ENTRANCE

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EXIT

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SHORING LOCATION, TYP.

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INDICATES APPROXIMATE LOCATION AND EXTENT OF CONCRETE REMOVAL

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-

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INDICATES APPROXIMATE LOCATION AND EXTENT OF CONCRETE REMOVAL AND NETTING

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4-5/S-200

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NOTES: : 1. THE CONTRACTOR SHALL FIELD-VERIFY ALL EXISTING CONDITIONS, THE CONTRACTOR SHALL FIELD-VERIFY ALL EXISTING CONDITIONS, INCLUDING THE CONFIGURATIONS OF ALL THE STRUCTURAL, ARCHITECTURAL, MECHANICAL, AND PLUMBING ELEMENTS AFFECTING THE WORK. 2. THE DRAWINGS SHOW THE APPROXIMATE LOCATION AND EXTENT THE DRAWINGS SHOW THE APPROXIMATE LOCATION AND EXTENT OF CONCRETE DETERIORATION. THE ENGINEER WILL IDENTIFY THE LOCATIONS REQUIRED CONCRETE REMOVAL, PATCHING, NETTING, AND INSTALLATION OF STEEL SUB-FRAMING.

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32'

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48'

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64'

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116" = 1'-0" = 1'-0"

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190065.00

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10/8/2019

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AS NOTED

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S-200

CONCRETE REPAIRDETAILS




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SET

Project No.

Drawing No.

Drawn Scale

DateChecked

Drawing Title

Project

No. DescriptionDate

Seal

Consultant

By

Approved




Los AngelesNew York


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1

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1/2" = 1'-0"

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SCHEMATIC SHORING

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PROVIDE SHORING TOWERS AND CRIBBING TO SUPPORT AND DISTRIBUTE SERVICE LOAD. DO NOT USE SHORING POSTS.

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(E) PRECAST INVERTED-TEE BEAM

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ELEVATION VIEW

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(E) SLAB-ON-GRADE

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SERVICE LOAD APPROX. 50 KIPS PER LOCATION

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(E) PRECAST DOUBLE-TEE BEAM STEM

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(2) " BOLT EACH SIDE34" BOLT EACH SIDE

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GALV. STEEL SHIMS WELDED TO CHANNEL @ 6" OC

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GALV. C8x11.5 w/ HORIZONTAL LONG SLOTTED HOLES EACH END

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GALV. L6x4x "x6" w/ (2) " EXPANSION 38"x6" w/ (2) " EXPANSION 58" EXPANSIONANCHORS, EMBED 4 " MIN. DO NOT CUT OR 12" MIN. DO NOT CUT OR DAMAGE (E) REINFORCEMENT.

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(E) DOUBLE-TEE BEAM STEMS, TYP.

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(E) PRESTRESSING STEEL. THE ENGINEER WILL SCAN AND LOCATE (E) REINFORCEMENT AND PRESTRESSING STEEL AND FIELD MARK LOCATIONS PRIOR TO INSTALLATION OF ANCHORS. DO DO NOT CUT OR DAMAGE EXISTING REINFORCEMENT OR TENDONS.

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(E) DOUBLE-TEE BEAM FLANGE

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(E) JOINT

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6

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1" = 1'-0"

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STEEL SUBFRAMING

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(E) REINF. TO REMAIN

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REPAIR DOUBLE-TEE BEAM FLANGE AS INDICATED PER THE DRAWINGS, AT THE DIRECTION OF THE ENGINEER

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5

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1 1/2" = 1'-0"

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NETTING INSTALLATION AT INVERTED-TEE BEAM UNDERSIDE

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14"x1 " STEEL BAR STOCK w/ 12" STEEL BAR STOCK w/ 516" PRE-DRILLED HOLES @ 2"OC, THREADED THROUGH MESH PRIOR TO INSTALLATION, TYP. FASTEN w/ " FASTENER x 1 " 14" FASTENER x 134" LONG @ 2'-0" OC THROUGH BAR STOCK AND NETTING (MIN. 1" EMBEDMENT IN SOUND CONCRETE) PROVIDE WASHERS.

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HEAVY DUTY DEBRIS MESH, LENGTH VARIES. THERMALLY CUT NETTING EDGES IN FIELD AS NECESSARY

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(E) IT BEAM

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NOTES: 1. USE MULTIPLE LENGTHS OF BAR STOCK AS REQUIRED TO USE MULTIPLE LENGTHS OF BAR STOCK AS REQUIRED TO LINE THE PERIMETER OF THE CONCRETE AREA TO BE NETTED.

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(E) DT BEAM FLANGE

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APPROX. LIMIT OF UNSOUND CONCRETE. REMOVE LOOSE CONCRETE.

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14"x1 " STEEL BAR STOCK w/ " PRE-DRILLED HOLES @ 2" OC, THREADED 12" STEEL BAR STOCK w/ " PRE-DRILLED HOLES @ 2" OC, THREADED 516" PRE-DRILLED HOLES @ 2" OC, THREADEDTHROUGH MESH PRIOR TO INSTALLATION, TYP. FASTEN w/ " FASTENER x 1 " 14" FASTENER x 134" LONG @ 2'-0" OC THROUGH BAR STOCK AND NETTING (MIN. 1" EMBEDMENT IN SOUND CONCRETE) PROVIDE WASHERS.

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HEAVY DUTY DEBRIS MESH. THERMALLY CUT NETTING EDGES IN FIELD AS NECESSARY

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4

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1 1/2" = 1'-0"

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NETTING INSTALLATION AT DOUBLE-TEE BEAM FLANGE UNDERSIDE

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NOTES: 1. INSTALL BAR STOCK ON ALL FOUR SIDES OF CONCRETE AREA TO BE NETTED. INSTALL BAR STOCK ON ALL FOUR SIDES OF CONCRETE AREA TO BE NETTED. 2. USE MULTIPLE LENGTHS OF BAR STOCK AS REQUIRED TO LINE THE PERIMETER OF THE CONCRETE AREA TO BE NETTED.USE MULTIPLE LENGTHS OF BAR STOCK AS REQUIRED TO LINE THE PERIMETER OF THE CONCRETE AREA TO BE NETTED.

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(E) DT BEAM STEM

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(E) DT BEAM FLANGE

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(E) DT BEAM STEM

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APPROX. LIMIT OF UNSOUND CONC. REMOVE LOOSE CONC.

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2

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PARTIAL-DEPTH PATCHING

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3" = 1'-0"

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PATCHING MATERIAL

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(E) DOUBLE-TEE BEAM STEM

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(E) REINFORCEMENT

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APPROX. LIMIT OF LOOSE CONCRETE. REMOVAL ALL LOOSE CONCRETE AND CLEAN (E) SURFACE

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3

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3" = 1'-0"

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FULL-DEPTH PATCHING

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6"±

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6"±

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6"±

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6"±

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(E) REINFORCEMENT

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(E) WWR, PREVENT DAMAGE DURING CONC. REMOVAL

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FORMED SURFACE (TYP.)

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(N) SEALANT AND BACKER ROD. MAINTAIN (E) JOINT WIDTH

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1" CLR.

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1" CLR.

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38" HILTI KWIK HUS-EZ ANCHOR @ 6" OCW/2" MIN. EMBEDMENT IN SOUND CONC., TYP.

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INSTALL NETTING (DETAIL 4/S-200) AFTER PERFORMING REPAIR

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(E) DOUBLE-TEE FLANGE CONNECTION

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APPROX. LIMIT OF LOOSE CONCRETE. REMOVE LOOSE MATERIAL, CLEAN (E) SURFACE, AND PLACE PATCHING MATERIAL

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NOTE: 1. REMOVE FORMWORK PRIOR TO REMOVE FORMWORK PRIOR TO INSTALLATION OF NETTING.

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JGT

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BBR

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SAC

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190065.00

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10/8/2019

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AS NOTED

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JOSEPH A. C MAYOR

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