Technical Exhibit F-Div 05 METALS 23 May 2023.pdf
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- Solicitation number
- W9123823B0021
About this file
This solicitation seeks proposals for a single-award Indefinite Delivery Indefinite Quantity Job Order Contract to provide real property sustainment, restoration, and modernization services at Military Ocean Terminal Concord in California. The contract has an estimated value between $25-100 million and will have a one-year base period with four one-year options. Task orders will range from $2,000 to $2 million for minor construction work including site work, demolition and rebuild, mechanical system replacement and controls upgrades, infrastructure preservation, renovation, and some vertical construction. The North American Industry Classification System code is 236220 and it has been set aside for small businesses with an annual revenue of $45 million or less. Proposals are due on July 25, 2023 and must be hand delivered to the specified address, as no mail-in bids will be accepted.
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MOTCO Job Order Contract (SATOC) 2487
SECTION TABLE OF CONTENTS
DIVISION 05 - METALS
SECTION 05 05 23.16
STRUCTURAL WELDING
PART 1 GENERAL
1.1 REFERENCES
1.2 SUBMITTALS
1.3 QUALITY ASSURANCE
1.3.1 General Requirements
1.3.2 Previous Qualifications
1.3.3 Pre-qualified Procedures
1.3.4 Welder, Welding Operator, and Tacker Qualification
1.3.4.1 Previous Personnel Qualifications
1.3.4.2 Certificates
1.3.4.3 Renewal of Qualification
1.3.5 Inspector Qualification
1.3.6 Symbols and Safety
PART 2 PRODUCTS
2.1 SYSTEM DESCRIPTION
2.1.1 Pre-erection Conference
2.2 WELDING EQUIPMENT AND MATERIALS
PART 3 EXECUTION
3.1 WELDING OPERATIONS
3.1.1 Requirements
3.1.2 Identification
3.2 QUALITY CONTROL
3.3 STANDARDS OF ACCEPTANCE
3.3.1 Nondestructive Testing
3.3.2 Destructive Tests
3.4 GOVERNMENT INSPECTION AND TESTING
3.5 CORRECTIONS AND REPAIRS
-- End of Section Table of Contents --
SECTION 05 05 23.16 Page 1
SECTION 05 05 23.16
STRUCTURAL WELDING
PART 1 GENERAL
1.1 REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
AMERICAN INSTITUTE OF STEEL CONSTRUCTION (AISC)
AISC 360 (2016) Specification for Structural Steel Buildings
AMERICAN SOCIETY FOR NONDESTRUCTIVE TESTING (ASNT)
ANSI/ASNT CP-189 (2020) ASNT Standard for Qualification and Certification of Nondestructive Testing Personnel
AMERICAN WELDING SOCIETY (AWS)
AWS A2.4 (2012) Standard Symbols for Welding, Brazing and Nondestructive Examination
AWS D1.1/D1.1M (2020; Errata 1 2021) Structural Welding Code - Steel
AWS D1.3/D1.3M (2018) Structural Welding Code - Sheet Steel
AWS D1.4/D1.4M (2011) Structural Welding Code - Reinforcing Steel
AWS D1.8/D1.8M (2016) Structural Welding Code—Seismic Supplement
AWS D14.4/D14.4M (2012) Specification for Welded Joints for Machinery and Equipment
AWS QC1 (2016) Specification for AWS Certification of Welding Inspectors
AWS Z49.1 (2021) Safety in Welding and Cutting and Allied Processes
ASTM INTERNATIONAL (ASTM)
ASTM E165/E165M (2018) Standard Practice for Liquid Penetrant Examination for General Industry
ASTM E709 (2021) Standard Guide for Magnetic Particle Testing
SECTION 05 05 23.16 Page 2
1.2 SUBMITTALS
Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government.
Submit the following in accordance with Section 01 33 00 SUBMITTAL
PROCEDURES:
SD-01 Preconstruction Submittals
Welding Quality Assurance Plan; G
SD-03 Product Data
Welding Procedure Qualifications; G
Welder, Welding Operator, and Tacker Qualification
Previous Qualifications
Pre-Qualified Procedures; G
Welding Electrodes and Rods
SD-06 Test Reports
Nondestructive Testing
Weld Inspection Log
SD-07 Certificates
Certified Welding Procedure Specifications (WPS)
Certified Brazing Procedure Specifications (BPS)
Certified Procedure Qualification Records (PQR)
Certified Welder Performance Qualifications (WPQ)
Certified Brazer Performance Qualifications (BPQ)
Certified Welding Inspector
Nondestructive Testing Personnel
1.3 QUALITY ASSURANCE
Except for pre-qualified (in accordance with AWS D1.1/D1.1M ) and previously qualified procedures, each Contractor performing welding must record in detail and qualify the welding procedure specification for any welding procedure followed in the fabrication of weldments. Conform welding procedure qualifications to AWS D1.1/D1.1M , AWS D1.8/D1.8M and to the specifications in this section. Submit for approval copies of the welding procedure specification and the procedure qualification records for each type of welding being performed. Submission of the welder, welding operator, or tacker qualification test records is also required.
SECTION 05 05 23.16 Page 3
Approval of any procedure, however, does not relieve the Contractor of the sole responsibility for producing a finished structure meeting all the specified requirements. Submit this information on the forms in Annex M of AWS D1.1/D1.1M . Individually identify and clearly reference on the detail drawings and erection drawings all welding procedure specifications, or suitably key them to the contract drawings. In case of conflict between this specification and AWS D1.1/D1.1M , this specification governs.
1.3.1 General Requirements
Fabricate work in an AISC Certified Fabrication Plant, Category BU. Erect work by an AISC Certified Erector, Category CSE.
a. For Structural Projects, provide documentation of the following:
(1) Component Thickness 1/8 inch and greater: Qualification documents (WPS, PQR, and WPQ) in accordance with AWS D1.1/D1.1M and
AWS D1.8/D1.8M .
(2) Component Thickness Less than 1/8 inch: Qualification documents (WPS, PQR, and WPQ) in accordance with AWS D1.3/D1.3M .
(3) Reinforcing Steel: Qualification documents (WPS, PQR, and WPQ) in accordance with AWS D1.4/D1.4M .
b. For other applications, provide documentation of the following:
(1) Submit two copies of the Certified Welding Procedure Specifications (WPS), Certified Brazing Procedure Specifications (BPS) and Certified Procedure Qualification Records (PQR) to the Contracting Officer for review.
(2) Submit two copies of the Certified Welder Performance Qualifications (WPQ)and Certified Brazer Performance Qualifications (BPQ) to the Contracting Officer for approval within fifteen calendar days prior to any employee welding on the project material.
(3) Machinery: Qualification documents (WPS, PQR, and WPQ) in accordance with AWS D14.4/D14.4M .
1.3.2 Previous Qualifications
Welding procedures previously qualified by test in accordance with AWS D1.1/D1.1M , may be accepted for this contract without re-qualification, upon receipt of the test results, if the following conditions are met:
a. Testing was performed by an approved testing laboratory, technical consultant, or the Contractor's approved quality control organization.
b. The qualified welding procedure conforms to the requirements of this specification and is applicable to welding conditions encountered under this contract.
c. The welder, welding operator, and tacker qualification tests conform to the requirements of this specification and are applicable to welding conditions encountered under this contract.
SECTION 05 05 23.16 Page 4
1.3.3 Pre-qualified Procedures
Welding procedures which are considered pre-qualified as specified in AWS D1.1/D1.1M will be accepted without further qualification. Submit for approval a listing or an annotated drawing to indicate the joints not pre-qualified. Procedure qualification is mandatory for these joints.
1.3.4 Welder, Welding Operator, and Tacker Qualification
Each welder, welding operator, and tacker assigned to work on this contract must be qualified in accordance with the applicable requirements of AWS D1.1/D1.1M , AWS D1.8/D1.8M and as specified in this section.
Welders, welding operators, and tackers who make acceptable procedure qualification test welds will be considered qualified for the welding procedure used within the applicable essential variables for welder qualification.
1.3.4.1 Previous Personnel Qualifications
At the discretion of the Contracting Officer, welders, welding operators, and tackers qualified by test within the previous 6 months may be accepted for this contract without re-qualification if all the following conditions are met:
a. Copies of the welding procedure specifications, the procedure qualification test records, and the welder, welding operator, and tacker qualification test records are submitted and approved in accordance with the specified requirements for detail drawings.
b. Testing was performed by an approved testing laboratory, technical consultant, or the Contractor's approved quality control organization.
c. The welder, welding operator, and tacker qualification tests conform to the requirements of this specification and are applicable to welding conditions encountered under this contract.
1.3.4.2 Certificates
Before assigning any welder, welding operator, or tacker to work under this contract, submit the names and certification that each individual is qualified as specified. State in the certification the type of welding and positions for which the welder, welding operator, or tacker is qualified, the code and procedure under which the individual is qualified, the date qualified, and the name of the firm and person certifying the qualification tests. Keep the certification current, on file, and furnish 3 copies.
1.3.4.3 Renewal of Qualification
Re-qualification of a welder or welding operator is required under any of the following conditions:
a. It has been more than 6 months since the welder or welding operator has used the specific welding process for which he is qualified.
b. There is specific reason to question the welder or welding operator's ability to make welds that meet the requirements of these specifications.
SECTION 05 05 23.16 Page 5
c. The welder or welding operator was qualified by an employer other than those firms performing work under this contract, and a qualification test has not been taken within the past 12 months. Submit as evidence of conformance all records showing periods of employment, name of employer where welder, or welding operator, was last employed, and the process for which qualified.
d. A tacker who passes the qualification test is considered eligible to perform tack welding indefinitely in the positions and with the processes for which he/she is qualified, unless there is some specific reason to question the tacker's ability or there has been a gap greater than 6 months since he/she last used the process. In such a case, the tacker is required to pass the prescribed tack welding test.
1.3.5 Inspector Qualification
Submit certificates indicating that certified welding inspectors meet the requirements of AWS QC1. Submit qualifications for nondestructive testing personnel in accordance with the requirements of ANSI/ASNT CP-189 for Levels I or II in the applicable nondestructive testing method. Level I inspectors must have direct supervision of a Level II inspector.
1.3.6 Symbols and Safety
Use symbols in accordance with AWS A2.4 , unless otherwise indicated.
Follow safe welding practices and safety precautions during welding in conformance with AWS Z49.1 .
PART 2 PRODUCTS
2.1 SYSTEM DESCRIPTION
Conform the design of welded connections to AISC 360 , unless otherwise indicated or specified. Material with welds will not be accepted unless the welding is specified or indicated on the drawings or otherwise approved. Perform welding as specified in this section, except where additional requirements are shown on the drawings or are specified in other sections. Do not commence welding until welding procedures, inspectors, nondestructive testing personnel, welders, welding operators, and tackers have been qualified and the submittals approved by the Contracting Officer. Perform all testing at or near the work site.
Maintain records of the test results obtained in welding procedure, welder, welding operator, and tacker performance qualifications.
2.1.1 Pre-erection Conference
Hold a pre-erection conference prior to the start of the field welding, to bring all affected parties together and to gain a naturally clear understanding of the project and the Welding Procedure Specifications (WPS) (submitted for all welding, including welding done using pre-qualified procedures). Mandatory attendance is required by all Contractor's welding production and inspection personnel and appropriate Government personnel. Include as items for discussion: responsibilities of various parties; welding procedures and processes to be followed;
welding sequence (both within a joint and joint sequence within the building); inspection requirements and procedures, both visual and nondestructive testing; welding schedule; and other items deemed necessary by the attendees.
SECTION 05 05 23.16 Page 6
2.2 WELDING EQUIPMENT AND MATERIALS
Provide all welding equipment, welding electrodes and rods, welding wire, and fluxes capable of producing satisfactory welds when used by a qualified welder or welding operator. Provide welding equipment and materials that comply with the applicable requirements of AWS D1.1/D1.1M and AWS D1.8/D1.8M . Submit product data on welding electrodes and rods.
PART 3 EXECUTION
3.1 WELDING OPERATIONS
3.1.1 Requirements
Conform workmanship and techniques for welded construction to the requirements of AWS D1.1/D1.1M , AWS D1.8/D1.8M and AISC 360 . When AWS D1.1/D1.1M , AWS D1.8/D1.8M and the AISC 360 specification conflict, the requirements of AWS D1.1/D1.1M , AWS D1.8/D1.8M govern.
3.1.2 Identification
Identify all welds in one of the following ways:
a. Submit written records to indicate the location of welds made by each welder, welding operator, or tacker.
b. Identify all work performed by each welder, welding operator, or tacker with an assigned number, letter, or symbol to identify welds made by that individual. The Contracting Officer may require welders, welding operators, and tackers to apply their symbol next to the weld by means of rubber stamp, felt-tipped marker with waterproof ink, or other methods that do not cause an indentation in the metal. Place the identification mark for seam welds adjacent to the weld at 3 foot intervals. Identification with die stamps or electric etchers is not allowed.
3.2 QUALITY CONTROL
Perform testing using an approved inspection or testing laboratory or technical consultant; or if approved, the Contractor's inspection and testing personnel may be used instead of the commercial inspection or testing laboratory or technical consultant. A Certified Welding Inspector must perform visual inspection on 100 percent of all welds. Document this inspection in the Visual Weld Inspection Log. Test 50% of CJP welds using ultrasonic testing per Table 6.2 or 6.3 of AWS D1.1/D1.1M . Randomly test 50% of all PJP and fillet welds or as indicated by magnetic particle or dye penetrant testing. Verify the welds conform to paragraph STANDARDS OF ACCEPTANCE. Conform procedures and techniques for inspection with applicable requirements of AWS D1.1/D1.1M , AWS D1.8/D1.8M , ASTM E165/E165M , and ASTM E709. Submit a Welding Quality Assurance Plan and records of tests and inspections.
3.3 STANDARDS OF ACCEPTANCE
Conform dimensional tolerances for welded construction, details of welds, and quality of welds with the applicable requirements of AWS D1.1/D1.1M , AWS D1.8/D1.8M and the contract drawings. Submit all records of nondestructive testing.
SECTION 05 05 23.16 Page 7
3.3.1 Nondestructive Testing
The welding is subject to inspection and tests in the mill, shop, and field. Inspection and tests in the mill or shop do not relieve the Contractor of the responsibility to furnish weldments of satisfactory quality. When materials or workmanship do not conform to the specification requirements, the Government reserves the right to reject material or workmanship or both at any time before final acceptance of the structure containing the weldment. Any indication of a defect is regarded as a defect, unless re-evaluation by nondestructive methods or by surface conditioning shows that no unacceptable defect is present. Submit all records of nondestructive testing in accordance with paragraph STANDARDS
OF ACCEPTANCE.
3.3.2 Destructive Tests
Make all repairs when metallographic specimens are removed from any part of a structure. Employ only qualified welders or welding operators, and use the proper joints and welding procedures, including peening or heat treatment if required, to develop the full strength of the members and joints cut and to relieve residual stress.
3.4 GOVERNMENT INSPECTION AND TESTING
In addition to the inspection and tests performed by the Contractor for quality control, the Government will perform inspection and testing for acceptance to the extent determined by the Contracting Officer. The work may be performed by the Government's own forces or under a separate contract for inspection and testing. The Government reserves the right to perform supplemental nondestructive and destructive tests to determine compliance with paragraph STANDARDS OF ACCEPTANCE.
3.5 CORRECTIONS AND REPAIRS
If inspection or testing indicates defects in the weld joints, repair defective welds using a qualified welder or welding operator as applicable. Conduct corrections in accordance with the requirements of AWS D1.1/D1.1M , AWS D1.8/D1.8M and the specifications. Repair all defects in accordance with the approved procedures. Repair defects discovered between passes before additional weld material is deposited. Wherever a defect is removed and repair by welding is not required, blend the affected area into the surrounding surface to eliminate sharp notches, crevices, or corners. After a defect is thought to have been removed, and before re-welding, examine the area by suitable methods to ensure that the defect has been eliminated. Repaired welds must meet the inspection requirements for the original welds.
-- End of Section --
SECTION 05 05 23.16 Page 8
DIVISION 05 - METALS
SECTION 05 12 00
STRUCTURAL STEEL
PART 1 GENERAL
1.1 REFERENCES
1.2 SUBMITTALS
1.3 AISC QUALITY CERTIFICATION
1.4 SEISMIC PROVISIONS
1.5 QUALITY ASSURANCE
1.5.1 Preconstruction Submittals
1.5.1.1 Erection and Erection Bracing Drawings
1.5.2 Fabrication Drawing Requirements
1.5.3 Certifications
1.5.3.1 Welding Procedures and Qualifications
PART 2 PRODUCTS
2.1 SYSTEM DESCRIPTION
2.2 STEEL
2.2.1 Structural Steel
2.2.2 Structural Steel Tubing
2.2.3 Steel Pipe
2.3 BOLTS, NUTS, AND WASHERS
2.3.1 Common Grade Bolts
2.3.1.1 Bolts
2.3.1.2 Nuts
2.3.1.3 Washers
2.3.2 High-Strength Bolts
2.3.2.1 Bolts
2.3.2.2 Nuts
2.3.2.3 Direct Tension Indicator Washers
2.3.2.4 Washers
2.3.3 Tension Control Bolts
2.3.4 Foundation Anchorage
2.3.4.1 Anchor Rods
2.3.4.2 Anchor Nuts
2.3.4.3 Anchor Washers
2.3.4.4 Anchor Plate Washers
2.4 STRUCTURAL STEEL ACCESSORIES
2.4.1 Welding Electrodes and Rods
2.4.2 Non-Shrink Grout
2.4.3 Welded Shear Stud Connectors
2.5 GALVANIZING
2.6 FABRICATION
2.6.1 Markings
2.6.2 Shop Primer
2.6.2.1 Cleaning
2.6.3 Surface Finishes
SECTION 05 12 00 Page 1
2.7 DRAINAGE HOLES
PART 3 EXECUTION
3.1 ERECTION
3.1.1 STORAGE
3.2 CONNECTIONS
3.2.1 Common Grade Bolts
3.2.2 High-Strength Bolts
3.2.2.1 Installation of Direct Tension Indicator Washers (DTIW)
3.2.3 Tension Control Bolts
3.3 GAS CUTTING
3.4 WELDING
3.4.1 Removal of Temporary Welds, Run-Off Plates, and Backing Strips
3.5 SHOP PRIMER REPAIR
3.5.1 Field Priming
3.6 GALVANIZING REPAIR
3.7 FIELD QUALITY CONTROL
3.7.1 Welds
3.7.1.1 Visual Inspection
3.7.1.2 Nondestructive Testing
3.7.2 Direct Tension Indicator Washers
3.7.2.1 Direct Tension Indicator Washer Compression
3.7.2.2 Direct Tension Indicator Gaps
3.7.3 High-Strength Bolts
3.7.3.1 Testing Bolt, Nut, and Washer Assemblies
3.7.3.2 Inspection
3.7.3.3 Testing
3.7.4 Testing for Embrittlement
3.7.5 Inspection and Testing of Steel Stud Welding
SECTION 05 12 00 Page 2
SECTION 05 12 00
STRUCTURAL STEEL
PART 1 GENERAL
1.1 REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
AMERICAN INSTITUTE OF STEEL CONSTRUCTION (AISC)
AISC 207 (2016; R 2017) Certification Standard for Steel Fabrication and Erection, and Manufacturing of Metal Components
AISC 303 (2016) Code of Standard Practice for Steel Buildings and Bridges
AISC 325 (2017) Steel Construction Manual
AISC 326 (2009) Detailing for Steel Construction
AISC 341 (2016) Seismic Provisions for Structural Steel Buildings
AISC 360 (2016) Specification for Structural Steel Buildings
AISC 420 (2010) Certification Standard for Shop Application of Complex Protective Coating Systems
AISC DESIGN GUIDE 10 (1997) Erection Bracing of Low-Rise Structural Steel Buildings
AMERICAN SOCIETY FOR NONDESTRUCTIVE TESTING (ASNT)
ANSI/ASNT CP-189 (2020) ASNT Standard for Qualification and Certification of Nondestructive Testing Personnel
AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)
ASME B46.1 (2020) Surface Texture, Surface Roughness, Waviness and Lay
AMERICAN WELDING SOCIETY (AWS)
AWS A2.4 (2012) Standard Symbols for Welding, Brazing and Nondestructive Examination
AWS D1.1/D1.1M (2020; Errata 1 2021) Structural Welding Code - Steel
SECTION 05 12 00 Page 3
AWS D1.8/D1.8M (2016) Structural Welding Code—Seismic Supplement
AWS QC1 (2016) Specification for AWS Certification of Welding Inspectors
ASTM INTERNATIONAL (ASTM)
ASTM A6/A6M (2021) Standard Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling
ASTM A29/A29M (2020) Standard Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought
ASTM A36/A36M (2019) Standard Specification for Carbon Structural Steel
ASTM A53/A53M (2022) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
ASTM A123/A123M (2017) Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products
ASTM A143/A143M (2007; R 2020) Standard Practice for Safeguarding Against Embrittlement of Hot-Dip Galvanized Structural Steel Products and Procedure for Detecting Embrittlement
ASTM A307 (2021) Standard Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60 000 PSI Tensile Strength
ASTM A500/A500M (2021a) Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes
ASTM A563 (2015) Standard Specification for Carbon and Alloy Steel Nuts
ASTM A780/A780M (2020) Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings
ASTM A992/A992M (2020) Standard Specification for Structural Steel Shapes
ASTM B695 (2021) Standard Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
ASTM C827/C827M (2016) Standard Test Method for Change in Height at Early Ages of Cylindrical
SECTION 05 12 00 Page 4
Specimens of Cementitious Mixtures
ASTM C1107/C1107M (2020) Standard Specification for Packaged Dry, Hydraulic-Cement Grout (Nonshrink)
ASTM F436/F436M (2019) Standard Specification for Hardened Steel Washers Inch and Metric Dimensions
ASTM F844 (2019) Standard Specification for Washers, Steel, Plain (Flat), Unhardened for General Use
ASTM F959/F959M (2017a) Standard Specification for Compressible-Washer-Type Direct Tension Indicators for Use with Structural Fasteners, Inch and Metric Series
ASTM F1136/F1136M (2011) Standard Specification for Zinc/Aluminum Corrosion Protective Coatings for Fasteners
ASTM F1554 (2020) Standard Specification for Anchor Bolts, Steel, 36, 55, and 105-ksi Yield Strength
ASTM F2329/F2329M (2015) Standard Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and Special Threaded Fasteners
ASTM F2833 (2011; R 2017) Standard Specification for Corrosion Protective Fastener Coatings with Zinc Rich Base Coat and Aluminum Organic/Inorganic Type
ASTM F3125/F3125M (2019) Standard Specification for High Strength Structural Bolts and Assemblies, Steel and Alloy Steel, Heat Treated, Inch Dimensions 120 ksi and 150 ksi Minimum Tensile Strength, and Metric Dimensions 830 MPa and 1040 MPa Minimum Tensile Strength
SOCIETY FOR PROTECTIVE COATINGS (SSPC)
SSPC PA 1 (2016) Shop, Field, and Maintenance Coating of Metals
SSPC Paint 20 (2019) Zinc-Rich Primers (Type I, Inorganic, and Type II, Organic)
SSPC Paint 29 (2002; E 2004) Zinc Dust Sacrificial Primer, Performance-Based
SSPC SP 3 (2018) Power Tool Cleaning
SSPC SP 6/NACE No.3 (2007) Commercial Blast Cleaning
SECTION 05 12 00 Page 5
U.S. DEPARTMENT OF DEFENSE (DOD)
UFC 3-301-01 (2019, with Change 1, 2022) Structural Engineering
U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)
29 CFR Part 1926, Subpart R Steel Erection
1.2 SUBMITTALS
Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government.
Submit the following in accordance with Section 01 33 00 SUBMITTAL
PROCEDURES:
SD-01 Preconstruction Submittals
Erection and Erection Bracing Drawings; G
SD-02 Shop Drawings
Fabrication Drawings Including Details of Connections; G
SD-03 Product Data
Shop Primer
Welding Electrodes and Rods
Direct Tension Indicator Washers
Non-Shrink Grout
Tension Control Bolts
Recycled Content for Structural Steel; S
Recycled Content for Structural Steel Tubing; S
Recycled Content for Steel Pipe; S
SD-05 Design Data
Shoring and Temporary Bracing; G SD-06 Test Reports
Class B Coating
Bolts, Nuts, and Washers
Weld Inspection Reports
Direct Tension Indicator Washer Inspection Reports
Bolt Testing Reports
Embrittlement Test Reports
SECTION 05 12 00 Page 6
SD-07 Certificates
Steel
Bolts, Nuts, and Washers
Galvanizing
AISC Structural Steel Fabricator Quality Certification
Welding Procedures and Qualifications
Welding Electrodes and Rods
Certified Welding Inspector
NDT Technician
Welding Procedure Specifications (WPS)
1.3 AISC QUALITY CERTIFICATION
Work must be fabricated by an AISC Certified Structural Steel Fabricator, in accordance with AISC 207 , Category BU. Submit AISC Structural Steel Fabricator quality certification.
1.4 SEISMIC PROVISIONS
Provide the structural steel system in accordance with AISC 341 , Chapter J as amended by UFC 3-301-01 .
1.5 QUALITY ASSURANCE
1.5.1 Preconstruction Submittals
1.5.1.1 Erection and Erection Bracing Drawings
Submit for record purposes. Indicate the sequence of erection, temporary shoring and bracing. The erection drawings must conform to AISC 303 .
Erection drawings must be reviewed, stamped and sealed by a registered professional engineer.
1.5.2 Fabrication Drawing Requirements
Submit fabrication drawings for approval prior to fabrication. Prepare in accordance with AISC 303 , AISC 326 and AISC 325 . Fabrication drawings must not be reproductions of contract drawings. Sign and seal fabrication drawings by a registered professional engineer. Include complete information for the fabrication and erection of the structure's components, including the location, type, and size of bolts, welds, member sizes and lengths, connection details, blocks, copes, and cuts. Use AWS A2.4 standard welding symbols. Shoring and Temporary bracing must be designed and sealed by a registered professional engineer and submitted for record purposes, with calculations, Clearly highlight any deviations from the details shown on the contract drawings highlighted on the fabrication drawings. Explain the reasons for any deviations from the contract drawings.
SECTION 05 12 00 Page 7
1.5.3 Certifications
1.5.3.1 Welding Procedures and Qualifications
Prior to welding, submit certification for each welder stating the type of welding and positions qualified for, the code and procedure qualified under, date qualified, and the firm and individual certifying the qualification tests. If the qualification date of the welder or welding operator is more than 6 months old, the welding operator's qualification certificate must be accompanied by a current certificate by the welder attesting to the fact that he has been engaged in welding since the date of certification, with no break in welding service greater than 6 months.
Conform to all requirements specified in AWS D1.1/D1.1M and AWS D1.8/D1.8M .
PART 2 PRODUCTS
2.1 SYSTEM DESCRIPTION
Provide the structural steel system, including shop primer, complete and ready for use. Provide structural steel systems including design, materials, installation, workmanship, fabrication, assembly, erection, inspection, quality control, and testing in accordance with AISC 303 , AISC 360 , AISC 341 , and UFC 3-301-01 except as modified in this contract.
2.2 STEEL
2.2.1 Structural Steel
Wide flange and WT shapes, ASTM A992/A992M . Angles, Channels and Plates, ASTM A36/A36M. Provide structural steel containing a minimum of 80 percent recycled content. Submit data identifying percentage of recycled content for structural steel.
2.2.2 Structural Steel Tubing
ASTM A500/A500M , Grade C. Provide structural steel tubing containing a minimum of 25 percent recycled content. Submit data identifying percentage of recycled content for structural steel tubing.
2.2.3 Steel Pipe
ASTM A53/A53M, Type E or S, Grade B, weight class STD (Standard) or as indicated. Provide steel pipe containing a minimum of 50 percent recycled content. Submit data identifying percentage of recycled content for steel pipe.
2.3 BOLTS, NUTS, AND WASHERS
Submit the certified manufacturer's mill reports which clearly show the applicable ASTM mechanical and chemical requirements together with the actual test results for the supplied fasteners.
2.3.1 Common Grade Bolts
2.3.1.1 Bolts
ASTM A307, Grade A, plain finish hot dipped zinc coating. The bolt heads
SECTION 05 12 00 Page 8 and the nuts of the supplied fasteners must be marked with the manufacturer's identification mark, the strength grade and type specified by ASTM specifications.
2.3.1.2 Nuts
ASTM A563, Grade A, heavy hex style.
2.3.1.3 Washers
ASTM F844.
2.3.2 High-Strength Bolts
High strength bolts and nuts must be shipped together in the same shipping container. Fasteners indicated to be galvanized shall be tested by the supplier to show that the galvanized nut with the supplied lubricant provided may be rotated from the snug tight condition well in excess of the rotation required for pretentioned installation without stripping.
The supplier shall supply nuts that have been lubricated and tested with the supplied bolts.
2.3.2.1 Bolts
ASTM F3125/F3125M , Grade A325M A325, Type 1 Heavy Hex Head Style, plain finish hot dipped zinc coating unless otherwise indicated on the drawings.
2.3.2.2 Nuts
ASTM A563, Grade and Style as specified in the applicable ASTM bolt standard.
2.3.2.3 Direct Tension Indicator Washers
ASTM F959/F959M . Provide ASTM B695, Class 55, Type 1 galvanizing. Submit product data for direct tension indicator washers.
2.3.2.4 Washers
ASTM F436/F436M , plain carbon steel.
2.3.3 Tension Control Bolts
ASTM F3125/F3125M , Grade F1852, Type 1, twistoff style assemblies consisting of steel structural bolts with splined ends, heavy-hex carbon steel nuts, and hardened carbon steel washers. Assembly finish must be plain. Submit product data for tension control bolts.
2.3.4 Foundation Anchorage
2.3.4.1 Anchor Rods
ASTM F1554 Gr 36, Class 1A unless otherwise indicated on the drawings..
2.3.4.2 Anchor Nuts
ASTM A563, Grade A, hex style.
SECTION 05 12 00 Page 9
2.3.4.3 Anchor Washers
ASTM F844.
2.3.4.4 Anchor Plate Washers
ASTM A36/A36M.
2.4 STRUCTURAL STEEL ACCESSORIES
2.4.1 Welding Electrodes and Rods
AWS D1.1/D1.1M . Submit product data for welding electrodes and rods.
2.4.2 Non-Shrink Grout
ASTM C1107/C1107M , with no ASTM C827/C827M shrinkage. Grout must be nonmetallic. Submit product data for non-shrink grout.
2.4.3 Welded Shear Stud Connectors
ASTM A29/A29M, Grades 1010 through 1020. AWS D1.1/D1.1M , Table 7.1, Type B.
2.5 GALVANIZING
ASTM F2329/F2329M , ASTM F1136/F1136M , ASTM F2833 or ASTM B695 for threaded parts or ASTM A123/A123M for structural steel members, as applicable, unless specified otherwise galvanize after fabrication where practicable.
2.6 FABRICATION
Fabrication must be in accordance with the applicable provisions of AISC 325 . Fabrication and assembly must be done in the shop to the greatest extent possible. Punch, subpunch and ream, or drill bolt holes perpendicular to the surface of the member.
Compression joints depending on contact bearing must have a surface roughness not in excess of 500 micro inch as determined by ASME B46.1 , and ends must be square within the tolerances for milled ends specified in
ASTM A6/A6M.
Shop splices of members between field splices will be permitted only where indicated on the Contract Drawings. Splices not indicated require the approval of the Contracting Officer.
Do not splice truss top and bottom chords except as approved by the Contracting Officer. Provide chord splices at panel joints at approximately the third point of the span. The center of gravity lines of truss members must intersect at panel points unless otherwise approved by the Contracting Officer. When the center of gravity lines do not intersect at a panel point, make provisions for the stresses due to eccentricity. Camber of trusses must be 1/8 inch in 10 feet unless otherwise indicated.
2.6.1 Markings
Prior to erection, identify members by a painted erection mark.
Connecting parts assembled in the shop for reaming holes in field connections must be match marked with scratch and notch marks. Do not
SECTION 05 12 00 Page 10 locate erection markings on areas to be welded. Do not locate match markings in areas that will decrease member strength or cause stress concentrations. Affix embossed tags to hot-dipped galvanized members.
2.6.2 Shop Primer
SSPC Paint 20 or SSPC Paint 29 , (zinc rich primer). Shop prime structural steel, except as modified herein, in accordance with SSPC PA 1 . Do not prime steel surfaces embedded in concrete, galvanized surfaces, or surfaces within 0.5 inch of the toe of the welds prior to welding (except surfaces on which metal decking and shear studs are to be welded). If flash rusting occurs, re-clean the surface prior to application of primer. Apply primer in accordance with endorsement "SPE-P1" of AISC 420 or approved equal NACE or SSPC certification to a minimum dry film thickness of 2.0 mil. Submit shop primer product data.
Prime slip critical surfaces with a Class B coating in accordance with AISC 325 . Submit test report for Class B coating.
Prior to assembly, prime surfaces which will be concealed or inaccessible after assembly. Do not apply primer in foggy or rainy weather; when the ambient temperature is below 45 degrees F or over 95 degrees F; or when the primer may be exposed to temperatures below 40 degrees F within 48 hours after application, unless approved otherwise by the Contracting Officer. Repair damaged primed surfaces with an additional coat of primer.
2.6.2.1 Cleaning
SSPC SP 6/NACE No.3 , except steel exposed in spaces above ceilings, attic spaces, furred spaces, and chases that will be hidden to view in finished construction may be cleaned to SSPC SP 3 when recommended by the shop primer manufacturer. Maintain steel surfaces free from rust, dirt, oil, grease, and other contaminants through final assembly.
2.6.3 Surface Finishes
ASME B46.1 maximum surface roughness of 125 for pin, pinholes, and sliding bearings, unless indicated otherwise.
2.7 DRAINAGE HOLES
Drill adequate drainage holes to eliminate water traps. Hole diameter must be 1/2 inch and location indicated on the detail drawings. Hole size and locations must not affect the structural integrity.
PART 3 EXECUTION
3.1 ERECTION
a. Erection of structural steel, except as indicated in item b. below, must be in accordance with the applicable provisions of AISC 325 , AISC 303 and 29 CFR Part 1926, Subpart R .
b. For low-rise structural steel buildings ( 60 feet tall or less and a maximum of 2 stories), erect the structure in accordance with
AISC DESIGN GUIDE 10 .
After final positioning of steel members, provide full bearing under base plates and bearing plates using nonshrink grout. Place nonshrink grout in
SECTION 05 12 00 Page 11 accordance with the manufacturer's instructions.
3.1.1 STORAGE
Store the material out of contact with the ground in such manner and location as to minimize deterioration.
3.2 CONNECTIONS
Except as modified in this section, design connections indicated in accordance with AISC 360 . Build connections into existing work. Do not tighten anchor bolts set in concrete with impact torque wrenches. Holes must not be cut or enlarged by burning. Bolts, nuts, and washers must be clean of dirt and rust, and lubricated immediately prior to installation.
3.2.1 Common Grade Bolts
Tighten ASTM A307 bolts to a "snug tight" fit. "Snug tight" is the tightness that exists when plies in a joint are in firm contact. If firm contact of joint plies cannot be obtained with a few impacts of an impact wrench, or the full effort of a man using a spud wrench, contact the Contracting Officer for further instructions.
3.2.2 High-Strength Bolts
Provide direct tension indicator washers in all ASTM F3125/F3125M , Grade A325 and Grade A490 bolted connections. Bolts must be installed in connection holes and initially brought to a snug tight fit. After the initial tightening procedure, fully tension bolts, progressing from the most rigid part of a connection to the free edges.
Fastener components shall be protected from dirt and moisture in closed containers at the site of the installation. Fastener components that are not incorporated into the work shall be returned to protected storage at the end of the work shift.
3.2.2.1 Installation of Direct Tension Indicator Washers (DTIW)
Where possible, install the DTIW under the bolt head and tighten the nut.
If the DTIW is installed adjacent to the turned element, provide a flat washer between the DTIW and nut when the nut is turned for tightening, and between the DTIW and bolt head when the bolt head is turned for tightening. In addition to the LIW, provide flat washers under both the bolt head and nut when ASTM F3125/F3125M , Grade A490 bolts are used.
3.2.3 Tension Control Bolts
Bolts must be installed in connection holes and initially brought to a snug tight fit. After the initial tightening procedure, fully tension bolts, progressing from the most rigid part of a connection to the free edges.
3.3 GAS CUTTING
Use of gas-cutting torch in the field for correcting fabrication errors is not permitted on any major member in the structural framing. Use of a gas cutting torch will be permitted on minor members not under stress only after approval has been obtained from the Contracting Officer.
SECTION 05 12 00 Page 12
3.4 WELDING
Welding must be in accordance with AWS D1.1/D1.1M and AWS D1.8/D1.8M .
Grind exposed welds smooth as indicated. Provide AWS D1.1/D1.1M qualified welders, welding operators, and tackers.
Develop and submit the Welding Procedure Specifications (WPS) for all welding, including welding done using prequalified procedures. Submit for approval all WPS, whether prequalified or qualified by testing.
3.4.1 Removal of Temporary Welds, Run-Off Plates, and Backing Strips
Remove from finished areas.Remove backing strips from bottom flange of moment connections, backgouge the root pass to sound weld metal and reinforce with a 5/16 inch fillet weld minimum.
3.5 SHOP PRIMER REPAIR
Repair shop primer in accordance with the paint manufacturer's recommendation for surfaces damaged by handling, transporting, cutting, welding, or bolting.
3.5.1 Field Priming
Field prime steel exposed to the weather, or located in building areas without HVAC for control of relative humidity. After erection, the field bolt heads and nuts, field welds, and any abrasions in the shop coat must be cleaned and primed with paint of the same quality as that used for the shop coat.
3.6 GALVANIZING REPAIR
Repair damage to galvanized coatings using ASTM A780/A780M zinc rich paint for galvanizing damaged by handling, transporting, cutting, welding, or bolting. Do not heat surfaces to which repair paint has been applied.
3.7 FIELD QUALITY CONTROL
Perform field tests, and provide labor, equipment, and incidentals required for testing. Notify the Contracting Officer in writing of defective welds, bolts, nuts, and washers within 7 working days of the date of the inspection.
3.7.1 Welds
3.7.1.1 Visual Inspection
AWS D1.1/D1.1M . Furnish the services of AWS-certified welding inspectors for fabrication and erection inspection and testing and verification inspections. A Certified Welding Inspector must perform visual inspection on 100 percent of all welds. Document this inspection in the Visual Weld Inspection Log. Submit certificates indicating that certified welding inspectors meet the requirements of AWS QC1.
Inspect proper preparation, size, gaging location, and acceptability of all welds; identification marking; operation and current characteristics of welding sets in use.
SECTION 05 12 00 Page 13
3.7.1.2 Nondestructive Testing
Nondestructive testing must be in accordance with AWS D1.1/D1.1M and AWS D1.8/D1.8M . Ultrasonic testing must be performed in accordance with Table 6.2 of AWS D1.1/D1.1M . Test locations must be selected by the Special Inspector. All personnel performing NDT must be certified in accordance with ANSI/ASNT CP-189 in the method of testing being performed. Submit certificates showing compliance with ANSI/ASNT CP-189 for all NDT technicians. If more than 20percent of welds made by a welder contain defects identified by testing, then all groove welds made by that welder must be tested by ultrasonic testing, and all fillet welds made by that welder must be inspected by magnetic particle testing (MT) or dye penetrant testing (PT) as approved by the Contracting Officer. When groove welds made by an individual welder are required to be tested, magnetic particle or dye penetrant testing may be used only in areas inaccessible to ultrasonic testing. Retest all repaired areas. Submit weld inspection reports.
Testing frequency: Provide the following types and number of tests:
Test Type Number of Tests
Ultrasonic 50 percent of CJP Welds
Magnetic Particle 50 percent of PJP and Fillet Welds
Dye Penetrant 50 percent of PJP and Fillet Welds
3.7.2 Direct Tension Indicator Washers
3.7.2.1 Direct Tension Indicator Washer Compression
Test direct tension indicator washers in place to verify that they have been compressed sufficiently to provide the 0.015 inch gap, as required by ASTM F959/F959M . Submit direct tension indicator washer inspection reports.
3.7.2.2 Direct Tension Indicator Gaps
In addition to the above testing, an independent testing agency as approved by the Contracting Officer, must test in place the direct tension indicator gaps on 20 percent of the installed direct tension indicator washers to verify that the ASTM F959/F959M direct tension indicator gaps have been achieved. If more than 10 percent of the direct tension indicators tested have not been compressed sufficiently to provide the average gaps required by ASTM F959/F959M , test all in place direct tension indicator washers to verify that the ASTM F959/F959M direct tension indicator gaps have been achieved. Test locations must be selected by the Contracting Officer.
3.7.3 High-Strength Bolts
3.7.3.1 Testing Bolt, Nut, and Washer Assemblies
Test a minimum of 3 bolt, nut, and washer assemblies from each mill certificate batch in a tension measuring device at the job site prior to the beginning of bolting start-up. Demonstrate that the bolts and nuts, when used together, can develop tension not less than the provisions specified in AISC 360 , depending on bolt size and grade. The bolt tension
SECTION 05 12 00 Page 14 must be developed by tightening the nut. A representative of the manufacturer or supplier must be present to ensure that the fasteners are properly used, and to demonstrate that the fastener assemblies supplied satisfy the specified requirements. Submit bolt testing reports.
3.7.3.2 Inspection
Inspection procedures must be in accordance with AISC 360 . Confirm and report to the Contracting Officer that the materials meet the project specification and that they are properly stored. Confirm that the faying surfaces have been properly prepared before the connections are assembled. Observe the specified job site testing and calibration, and confirm that the procedure to be used provides the required tension.
Monitor the work to ensure the testing procedures are routinely followed on joints that are specified to be fully tensioned.
Inspect calibration of torque wrenches for high-strength bolts.
3.7.3.3 Testing
The Government has the option to perform nondestructive tests on 5 percent of the installed bolts to verify compliance with pre-load bolt tension requirements. Provide the required access for the Government to perform the tests. The nondestructive testing will be done in-place using an ultrasonic measuring device or any other device capable of determining in-place pre-load bolt tension. The test locations must be selected by the Contracting Officer. If more than 10 percent of the bolts tested contain defects identified by testing, then all bolts used from the batch from which the tested bolts were taken, must be tested at the Contractor's expense. Retest new bolts after installation at the Contractor's expense.
3.7.4 Testing for Embrittlement
ASTM A143/A143M for steel products hot-dip galvanized after fabrication.
Submit embrittlement test reports.
3.7.5 Inspection and Testing of Steel Stud Welding
Perform verification inspection and testing of steel stud welding conforming to the requirements of AWS D1.1/D1.1M , Stud Welding Clause.
The Contracting Officer will serve as the verification inspector. Bend test studs that do not show a full 360 degree weld flash or have been repaired by welding as required by AWS D1.1/D1.1M , Stud Welding Clause.
Studs that crack under testing in the weld, base metal or shank will be rejected and replaced by the Contractor at no additional cost.
SECTION 05 12 00 Page 15
DIVISION 05 - METALS
SECTION 05 21 00
STEEL JOIST FRAMING
PART 1 GENERAL
1.1 REFERENCES
1.2 SUBMITTALS
1.3 QUALITY ASSURANCE
1.3.1 Drawing Requirements
1.3.2 Certification of Compliance
1.4 DELIVERY, STORAGE, AND HANDLING
PART 2 PRODUCTS
2.1 SYSTEM DESCRIPTION
2.2 STEEL JOISTS AND JOIST GIRDERS
2.2.1 Steel Joist Camber
2.2.2 Special Steel Joists
2.2.3 Steel Joist Substitutes and Outriggers
2.2.4 Composite Steel Joists
2.2.5 Joist Girders
2.3 RECYCLED CONTENT
2.4 ACCESSORIES AND FITTINGS
2.4.1 Bridging
2.4.2 Bearing Plates
2.4.3 Ceiling Extensions
2.5 SHOP PAINTING
PART 3 EXECUTION
3.1 ERECTION
3.2 BEARING PLATES
3.3 PAINTING
3.3.1 Touch-Up Painting
3.3.2 Field Painting
3.4 VISUAL INSPECTIONS
SECTION 05 21 00 Page 1
SECTION 05 21 00
STEEL JOIST FRAMING
PART 1 GENERAL
1.1 REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
AMERICAN WELDING SOCIETY (AWS)
AWS D1.1/D1.1M (2020; Errata 1 2021) Structural Welding Code - Steel
ASTM INTERNATIONAL (ASTM)
ASTM A36/A36M (2019) Standard Specification for Carbon Structural Steel
INTERNATIONAL CODE COUNCIL (ICC)
ICC IBC (2021) International Building Code
SOCIETY FOR PROTECTIVE COATINGS (SSPC)
SSPC PA 1 (2016) Shop, Field, and Maintenance Coating of Metals
SSPC Paint 15 (1999; E 2004) Steel Joist Shop Primer/Metal Building Primer
SSPC SP 2 (2018) Hand Tool Cleaning
STEEL JOIST INSTITUTE (SJI)
SJI COMPOSITE JOISTS (2007; Supplement 1 2010) Standard Specifications for Composite Steel Joist Catalog
SJI LOAD TABLES (2020) Standard Specifications Load Tables and Weight Tables for Steel Joists and Joist Girders - 45th Edition
U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)
29 CFR 1926 Safety and Health Regulations for Construction
29 CFR 1926.757 Steel Erection; Open Web Steel Joists
1.2 SUBMITTALS
Government approval is required for submittals with a "G" or "S"
SECTION 05 21 00 Page 2 classification. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government.
Submit the following in accordance with Section 01 33 00 SUBMITTAL
PROCEDURES:
SD-01 Preconstruction Submittals
Welder Qualification
SD-02 Shop Drawings
Steel Joist Framing; G
SD-03 Product Data
Recycled Content Of Steel Products; S
SD-05 Design Data
Design Calculations; G
SD-06 Test Reports
Erection Inspection
Welding Inspections
SD-07 Certificates
Certification of Compliance
1.3 QUALITY ASSURANCE
Perform all work in compliance with the requirements set forth in
29 CFR 1926 .
1.3.1 Drawing Requirements
Submit drawings of steel joist framing including fabrication, specifications for shop painting, and identification markings of joists and joist girders. Show joist type and size, layout in plan, all applicable loads, deflection criteria, and erection details including methods of anchoring, framing at openings, type, size, and location and connections for and spacing of bridging, requirements for field welding, and details of accessories as applicable. Show profiles for nonstandard joist configurations.
1.3.2 Certification of Compliance
Prior to construction commencement, submit certification for welder qualification, in compliance with AWS D1.1/D1.1M , welding operation, and tacker, stating the type of welding and positions qualified for, the code and procedure qualified under, date qualified, and the firm and individual certifying the qualification tests. Submit certification of compliance for the following:
a. Steel Joist Institute Member Fabricator
SECTION 05 21 00 Page 3
b. 29 CFR 1926
c. 29 CFR 1926.757
d. Statement from steel joist manufacturer, that work was performed in accordance with approved construction documents and with SJI standard specifications, in accordance with ICC IBC Section 1704.2.5.2.
1.4 DELIVERY, STORAGE, AND HANDLING
Handle, transport, and store joists and joist girders in a manner to prevent damage affecting their structural integrity. Verify piece count of all joist products upon delivery and inspect all joists products for damage. Report any damage to the joist supplier. Store all items off the ground in a well drained location protected from the weather and easily accessible for inspection and handling. Store joists with top chord down and with joists in a vertical position. Store deep joists horizontally if they were shipped on their sides.
PART 2 PRODUCTS
2.1 SYSTEM DESCRIPTION
Designate steel joists and joist girders on the drawings in accordance with the standard designations of the Steel Joist Institute. Joists of other standard designations or joists with properties other than those shown may be substituted for the joists designated provided the structural properties are equal to or greater than those of the joists shown and provided all other specified requirements are met.
2.2 STEEL JOISTS AND JOIST GIRDERS
Provid…
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