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' <br /> , <br /> PART 3-EXECU'TION <br /> 3.1 ERECTION � <br /> A. Temporary Shoring and Bracing: Provide temporary shoring and bracing members with , <br /> connections of sufficieat sirength to bear imposed loads. Remove temporary members and <br /> connections when permanent members are 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 temporaty planking and working platforms as necessary to � <br /> effectively complete work. <br /> C. Setting Bases and Bearing Plates: Ciean concrete and masonry bearing surfaces of ' <br /> bond-reducing materials and mughen to imprave band to surfaces. Clean bottom surface <br /> of base and bearing plates. � <br /> 1. Set loose and attached base plates and bearing plates for structurai members on <br /> wedges or other adjusting devices. <br /> 2. Tigiiten anchor bolts after supported raembers have been positioned and plumbed. , <br /> Do not remove wedges or shims,but if protruding,cut off flush with 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 exposed surfaces, protect installed materials, and allow to <br /> cure. <br /> 4. Foc proprietaty grout materials,comply with manufacturer's instructions. , <br /> D. FieId Assembiy: Set stxuctural frames accurately to iiaes and elevations indicated. Align <br /> and adj ust various members forming part of complete frame or structure before permanendy <br /> fastening. Cleau bearing surfaces and other snrfaces that will be in permanent contact i <br /> before assembly. Perform necessary adjushnents to compensate for discrepancies in <br /> elevations and aGgnment. <br /> E. Level and plumb individual members of struc#ure within specified AISC tolerances. � <br /> F. Establish required leveling and piumbing raeasuremerrts on mean operating temperature of , <br /> structure. Make allowances for difference 6etween temperature at time of erection and <br /> mean temperature at which stnucture will be when eompleted and in service. <br /> G. Splice members only where indicated and accepted on shop drawings. , <br /> H. Erection Bolts: On exposedwelded construction,remove erection bolts,fill holes with plug <br /> welds,and grind s�nooth at exposed surfaces. ' <br /> 1. Comply with AISC Specifications for beari�ng,adequacy oftemporary conne�tions, <br /> alignment,and removal of paint on surfaces adjacent to field welds. , <br /> 2. Do not enlarge unfair holes in members by burning or by using drift pins,except in <br /> secondary bracing members. Ream holes that must be enlarged to admit bolts. <br /> J. Gas Cutting: Do not use gas cutting torches in field for correcting fabrica.tion errors in � <br /> primary structural framing. Cutting will be permitted only on secondary members that are <br /> not under stress, as acceptable to Architect. Finish gas-cut sections equal to a sheared <br /> appearance when permitted. � <br /> STR.UCTLTRAL STEEL Page 4 OF 5 <br /> � <br />