specs

Section 05100
Page 4
C. Provide products listed on the USGBC Directory of Products and Services to the greatest extent possible.
2.03. RECYCLED CONTENT
A. Provide material with maximum amount of recycled content available that achieves performance requirements
of this Section.
2.04. REGIONAL MATERIALS
A. Provide material with maximum amount of regional (within 500 miles) material feasible that achieves
performance requirements of this Section.
2.05. DESIGN OF CONNECTIONS
A. For those connections not detailed, Fabricator to design connections to resist required forces.
B. Design connections for simple beams (except where end reactions are otherwise noted) for 55 percent of total
uniform load capacity shown in Allowable Uniform Load Tables, Part 2, of AISC Manual, for given beam,
span and grade of steel specified.
C. Complete penetration butt weld moment connections to develop 100% of flexural capacity of member.
D. Except as specifically noted otherwise, detail bolted connections using bolts conforming to ASTM A325N,
Bearing Type Connections with threads allowed in shear plane. Details shall be in accordance with Section 7
of the AISC Specification for Structural Joints.
E. Weld connections for diagonal bracing to develop full strength of member in tension.
F. Do not use welds in combination with bolts in the same face of any connection.
2.06. FABRICATION
A. Fabricate materials in accordance with applicable AISC Specifications and Standards.
B. Pre-assemble work as much as possible and deliver to site ready for erection. Mark and match-mark pieces
where field assembly is required.
C. Prior to fabrication; straighten materials, remove twists and bends and clean faying surfaces of scale and rust.
D. Clean members to be painted with power tools in accordance with SSPC standards.
E. Provide required camber in beams to within 1/8th inch per 10 feet of beam length. Mark all beams indicating
direction of fabricated camber or natural camber due to rolling tolerance.
F. Provide members of required sizes, weights, shapes and lengths. Do not splice members to achieve required
lengths except where specifically allowed by the Architect. Do not alter member shapes or lengths or enlarge
bolt holes in the field for proper fit; return materials to the fabrication shop for correction where required.
Member splices allowed for the convenience of the fabricator or erector shall not result in additional cost to
the Owner.
G. Punch or drill holes for bolts. Hole sizes shall conform to AISC Specifications.
H. Compression joints shall have both contact surfaces milled for precision fit. Other joints shall be cut or
dressed straight and true, and prepared as required for welding. Components of assemblies and built-up
members shall be pinned and rigidly maintained in accurate position during final assembly.
2.07. WELDED CONSTRUCTION
A. Comply with AWS D1.1.
B. Clean surfaces of loose scale, rust, paint, grease and dirt. Remove oil with benzine. Wire brush welds after
depositing for visual inspection. Welds shall be smooth and uniform in cross section, shall be free of porosity
and clinkers, and shall have required fusion and penetration into base metal.
C. Secure members in proper position for welding.
D. Take proper precautions to minimize residual stresses and distortions in members being welded.
E. Preheat and interpass temperatures shall conform to Table 4.2, AWS D1.1. continuous fillet with minimum
sizes specified by AWS D1.1
F. Prepare members to be butt-welded in accordance with AISC recommendations for pre-qualified welds, and
provide required clearances and back-up bars. Remove back-up bars after completing welds.
G. Lay fillet welds of required sizes in proper position and with gaps not exceeding AISC recommendations.
H. Tack welding shall not affect quality of finished welds.
2.08. BOLTED CONSTRUCTION
A. Provide holes at right angles to members of sizes recommended by AISC Specifications. Short-slotted holes
shall not be used for primary frame connections (members connecting to columns), trusses and wind bracing
NAPA CENTURY CENTER XD 12
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