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Construction Specification

This document outlines the specifications for metal fabrication and installation, detailing the scope, materials, fabrication, erection, and protective coatings required for metalwork in construction. It emphasizes compliance with specific material and fabrication standards, ensuring structural integrity and safety during installation. Additionally, it specifies guidelines for protective coatings to maintain the quality of the metal components.

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9 views2 pages

Construction Specification

This document outlines the specifications for metal fabrication and installation, detailing the scope, materials, fabrication, erection, and protective coatings required for metalwork in construction. It emphasizes compliance with specific material and fabrication standards, ensuring structural integrity and safety during installation. Additionally, it specifies guidelines for protective coatings to maintain the quality of the metal components.

Uploaded by

tangledfate0404
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Construction Specification

81. METAL FABRICATION AND INSTALLATION

1. SCOPE

The work shall consist of furnishing, fabricating and erecting


metalwork, including the metal parts and fasteners of the composite
structures.

2. MATERIALS

Unless otherwise specified, materials shall conform to the


requirements of Material Specification 581, Metal. Steel shall be
structural quality unless otherwise specified. Castings shall be
thoroughly cleaned and subjected to careful inspection before
installation. Finished surfaces shall be smooth and true to assure
proper fit. Galvanizing shall conform to the requirements of Material
Specification 582, Galvanizing.

3. FABRICATION

Fabrication of structural steel shall conform to the requirements of


"Specification for the Design, Fabrication and Erection of Structural
Steel for Buildings (Riveted, Bolted and Arc-Welded Construction),"
American Institute of Steel Construction.

Fabrication of structural aluminum shall conform to the requirements


in the �Aluminum Design Manual�, available from The Aluminum
Association.

4. ERECTION

The frame of metal structures shall be installed true and plumb.


Temporary bracing shall be placed wherever necessary to resist all
loads to which the structure may be subjected, including those
applied by the installation and operation of equipment. Such bracing
shall be left in place as long as may be necessary for safety.

As erection progresses the work shall be securely bolted up, or


welded, to resist all dead load, wind and erection stresses. The
Contractor shall furnish such installation assisting bolts, nuts and
washers as may be required.
No riveting or welding shall be performed until the structure is
stiffened and properly aligned.

Rivets driven in the field shall be heated and driven with the same
care as those driven in the shop.

All field welding shall be performed in conformance to the


requirements for shop fabrication, except those that expressly apply
to shop conditions only.

5. PROTECTIVE COATINGS

Items specified to be galvanized shall be completely fabricated for


field assembly before the application of the zinc coatings. Galvanized
items shall not be cut, welded or drilled after the zinc coating is
applied.

Items specified to be painted shall be painted in conformance to the


requirements of Construction Specification 82 for the specified paint
systems.

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