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40-27 BUILDING <br />STRUCTURAL STEEL FRAMING 1 <br />BRPH ARCHITECTS -ENGINEERS, INC. <br />2.6 FABRICATION <br />7 <br />A. Structural Steel: Fabricate and assemble in shop to greatest extent possible. Fabricate ' <br />according to AISC 303, "Code of Standard Practice for Steel Buildings and Bridges," <br />and to AISC 360. <br />1. Camber structural -steel members where indicated. <br />2. Fabricate beams with rolling camber up. <br />3. Identify high -strength structural steel according to ASTM A 6/A 6M and maintain <br />markings until structural steel has been erected. <br />4. Mark and match -mark materials for field assembly. <br />5. Complete structural -steel assemblies, including welding of units, before starting <br />shop -priming operations. <br />B. Thermal Cutting: Perform thermal cutting by machine to greatest extent possible. <br />Plane thermally cut edges to be welded to comply with requirements in <br />AWS D1.1/D1.1M. <br />C. Bolt Holes: Cut, drill, or punch standard bolt holes perpendicular to metal surfaces. <br />D. Finishing: Accurately finish ends of columns and other members transmitting bearing <br />loads. <br />E. Cleaning: Clean and prepare steel surfaces that are to remain unpainted according to <br />SSPC-SP 2, "Hand Tool Cleaning," or SSPC-SP 3, "Power Tool Cleaning." <br />F. Shear Connectors: Prepare steel surfaces as recommended by manufacturer of shear <br />connectors. Use automatic end welding of headed -stud shear connectors according to <br />AWS D1.1/D1.1M and manufacturer's written instructions. <br />G. Steel Wall -Opening Framing: Select true and straight members for fabricating steel <br />wall -opening framing to be attached to structural -steel frame. Straighten as required to <br />provide uniform, square, and true members in completed wall framing. Build up welded <br />framing, weld exposed joints continuously, and grind smooth. <br />H. Crane Runways: Select true and straight members for fabrication of crane runways. <br />Straighten as required to provide uniform, square and true members with tolerance of <br />1/8" maximum in 25'-0". <br />Holes: Provide holes required for securing other work to structural steel and for other <br />work to pass through steel members. <br />1. Cut, drill, or punch holes perpendicular to steel surfaces. Do not thermally cut <br />bolt holes or enlarge holes by burning. <br />2. Baseplate Holes: Cut, drill, or punch holes perpendicular to steel surfaces. <br />3. Weld threaded nuts to framing and other specialty items indicated to receive <br />other work. <br />C06922.001.00 05 12 00 - 6 <br />05-22-14 ' <br />