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Madison Industries <br />Designed by: ML/JFB <br />August 4, 2016 <br />Job No: WCA17860-1 <br />Sauare Pier Footin <br />Customer: Mobil Fueling Canopy <br />Structure: 65'-0" x 54'-4" (4) Column Canopy <br />Location: Tracy, CA 95377 <br />Sheet 43 <br />Foundation for Column C1, cont. <br />Length of side of square footing (b2) = 4.50 ft <br />Required depth for this diameter: Lateral Loads = 8.5 ft <br />Uplift = 3.5 ft <br />Therefore use depth (d2) = 8.5 ft <br />Actual bearing on soil at bottom of footing = (13)/(Afoo,;n9) = 1231 psf <br />Allowable bearing to check soil at bottom of footing = 1500 psf per IBC <br />Footing Size is OK for Soil Bearing <br />Therefore use 4.50 ft square x 8.5 ft deep footing for each column <br />Cross-sectional Area of Reinforcing Steel Required: <br />Ax per face = 1.33M/[(fs)Q)(d)] = 1.79 int per side <br />Where: M = 121.7 ft -k <br />d = 4.25 ft <br />Area of Footing, Aft9 = 2601 int <br />Use 5 No. 6 vertical rebars per face <br />Ax total reqd = 0.0018Aft9 = 4.68 int <br />( AX = 2.20 int ) <br />AX total provided = 7.04 int OK <br />D <br />JUN 0 8 2017 <br />-ALTH <br />4-` <br />