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INDIAN RIVER COUNTY JULY 25, 2014 <br />INTERGENERATIONAL RECREATION CENTER 100% CONSTRUCTION DOCUMENTS <br />3.2 INSTALLATION, GENERAL <br />A. Install deck panels and accessories according to applicable specifications and commentary in <br />SDI Publication No. 30, manufacturer's written instructions, and requirements in this Section. <br />B. Install temporary shoring before placing deck panels, if required to meet deflection limitations. <br />C. Locate deck bundles to prevent overloading of supporting members. <br />D. Place deck panels on supporting frame and adjust to final position with ends accurately aligned <br />and bearing on supporting frame before being permanently fastened. Do not stretch or contract <br />side -lap interlocks. <br />E. Place deck panels flat and square and fasten to supporting frame without warp or deflection. <br />F. Cut and neatly fit deck panels and accessories around openings and other work projecting <br />through or adjacent to deck. <br />Provide additional reinforcement and closure pieces at openings as required for strength, <br />continuity of deck, and support of other work. <br />H. Comply with AWS requirements and procedures for manual shielded metal arc welding, <br />appearance and quality of welds, and methods used for correcting welding work. <br />I. Mechanical fasteners may be used in lieu of welding to fasten deck. Locate mechanical <br />fasteners and install according to deck manufacturer's written instructions. <br />3.3 ROOF -DECK INSTALLATION <br />A. Fasten roof -deck panels to steel supporting members by arc spot (puddle) welds of the surface <br />diameter indicated or arc seam welds with an equal perimeter that is not less than 1-1/2 inches <br />long, and as follows: <br />1. Weld Diameter: 3/4 inch, nominal. <br />2. Weld Spacing: Weld edge and interior ribs of deck units with a minimum of two welds per <br />deck unit at each support. Space welds as indicated. <br />3. Weld Washers: Install weld washers at each weld location. <br />B. Side -Lap and Perimeter Edge Fastening: Fasten side laps and perimeter edges of panels <br />between supports, at intervals not exceeding the lesser of 1/2 of the span or 36 inches, and as <br />follows: <br />1. Mechanically fasten with self -drilling, No. 10 diameter or larger, carbon -steel screws. <br />C. End Bearing: Install deck ends over supporting frame with a minimum end bearing of 1-1/2 <br />inches, with end joints as follows: <br />1. End Joints: Lapped 2 inches minimum. <br />D. Miscellaneous Roof -Deck Accessories: Install ridge and valley plates, .finish strips, end <br />closures, and reinforcing channels according to deck manufacturer's written instructions. Weld <br />or mechanically fasten to substrate to provide a complete deck installation. <br />1. Weld cover plates at changes in direction of roof -deck panels, unless otherwise indicated. <br />STEEL DECKING 053100 - 4 <br />