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Madison Industries <br />Designed by: ML/JFB <br />August 4, 2016 <br />Job No: WCA17860-1 <br />Customer: Mobil Fueling Canopy <br />Structure: 65'-0" x 54'-4" (4) Column Canopy <br />Location: Tracy, CA 95377 <br />Sheet 33 <br />Girders - Check if Web Stiffeners Req'd <br />P p <br />1/4" Plate Stiffeners <br />NOT Req'd <br />d <br />DETAIL <br />3 <br />Check if Web Stiffener Plates are Req'd: <br />Check local flange bending (AISC 13th Sect. J10.1): <br />Req'd flange thk (tf) = WDIA6.251'y)]12 = 0.380 in <br />0 = 1.67 <br />Actual flange thk = 0.63 in <br />S = 0.6FY = 30.0 ksi <br />Loads: <br />PD+(max) = 27.0 k <br />JUN o 8 2017 <br />STIFFENERS NOT REQ'D FOR LOCAL FLANGE BENDING <br />Check web crippling (AISC 13th Sect. J10.2): <br />Max allowable concentrated load w/o web stiffeners: <br />R = 80tw2[1+3(N/d)(tw/tf)'.s][(Fyw)(tf/tw)]"z = 158 k <br />Where: N = (4)(tp+tf) = 5.52 in <br />STIFFENERS NOT REQ'D FOR WEB CRIPPLING <br />Member: <br />W 18x55 <br />�tf <br />Geometry: <br />d = 18.11 in <br />b= 7.53 in <br />tt,= 0.39 in <br />t P <br />� <br />tf = 0.63 in <br />tP = 0.75 in <br />Material: <br />A992 for beam <br />FY = 50 ksi <br />S = 0.6FY = 30.0 ksi <br />Loads: <br />PD+(max) = 27.0 k <br />JUN o 8 2017 <br />STIFFENERS NOT REQ'D FOR LOCAL FLANGE BENDING <br />Check web crippling (AISC 13th Sect. J10.2): <br />Max allowable concentrated load w/o web stiffeners: <br />R = 80tw2[1+3(N/d)(tw/tf)'.s][(Fyw)(tf/tw)]"z = 158 k <br />Where: N = (4)(tp+tf) = 5.52 in <br />STIFFENERS NOT REQ'D FOR WEB CRIPPLING <br />