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' <br /> ' <br /> PART 3-EXECUTION <br /> 3.1 ERECTION ' <br /> A. Temporary Shoiing and Bracing: Provide temporary shoring an.d bracing members with ' <br /> coriz�ections of sufficient strength to bear imposed loads. Remove temporary members and <br /> connections when permanent members ate in place and final cannections are made. Provide <br /> temporary guy lines to achieve proper alignment of structures as erection proceeds. <br /> B. Temporary Planking: Provide temporary planking and working platforir�s as necessary to ' <br /> effectively comp�ete work. <br /> C. Setting Bases and Bearing Plates: Ciean concrete and masonry bearing surfaces of ' <br /> bond-reducing materials and roughen to improve bond to surfaces. Clean bottom surface <br /> of base and bearing plates. , <br /> 1. Set loose and attached base plates and bearing plates for structural members on <br /> wedges or other adjusting devices. <br /> 2. Tighten aachor bolts after supported mer►zbers have been positioned and plumbed. ' <br /> Do not remove wedges or shims,but if protruding,cut off flush witt�edge of base <br /> or bearing plate prior to packing with grout. <br /> 3. Pack grout solidly between bearing surfaces and bases or plates to ensure that no , <br /> voids remain. Finish expased surfaces, prot�ct installed materials, and allow to <br /> curs. <br /> 4. For proprietary grout materials,comply with manufacturer's instructions. ' <br /> D. Field Assembly: Set shvctural frames sccurately to lines and elevations indicated. Align <br /> and adjust various members forming part of complete frarae or structure before permatiently ' <br /> fastening. Clean bearing surfaces and other surfaces that will be in permanent contact <br /> before assembly. Perform necessary adjustments to compensate for discrepancies in <br /> elevations and alignment. <br /> E. Level and plumb individual mentbers of slructure within specified AISC tolerances. ' <br /> F. Establish required leveling and plumbing measurements an mean operatin$temperature of ' <br /> structure. Make allowances for difference between temperature at time of erection and <br /> mean temperature at which sttucture will be when complet�ed and in service. <br /> G. Splice members only where indicated and accepted on shop drawings. ' <br /> H. Erection Boits: On exposedwelded construction,remove erection bolts,fill holes with plug � <br /> welds,and griud smooth ax exposed surfaces. ' <br /> i. Comply with AISC Specificatioas for bearing,adequacy of temporary connections, <br /> aligament,and removal of paint on surfaces adjacent ta field welds. ' <br /> 2. Do not enlarge unfair holes in mexnbers by buming or by using drift pins,axcept in <br /> secondary bracing members. Ream holes that must be enlarged to admit i�olts. <br /> J. Gas Cutting: Do not use gas cutting torchcs in field for corre,cting fabrication errors in , <br /> primary structural framing. Cntting will be permitted only on secondary members tha.t are <br /> not under stress, as acceptable ta Architect. Finish gas-cut sections equal to a sheared ' <br /> appearance when petmitted. <br /> STRUCTURAL STEEL Page 4 OF 5 <br /> ' <br />