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<br />J.ohn.E...Barrett . ~ <br />Windload Calculations <br /> <br />0-15 Exp.' B <br /> <br />Footing Depth: FBG 20041805.7.2.1 d= ,5A(1 +(1 +(4,3h/A)) 112) A= 2.34P/(S1b) <br /> 1,38 0,53 <br />Weight of Footing: Wf= 150*A*D <br /> 8000 Ibs Dead Load OK <br /> Factor of Safety 2,2 <br />Calculations: Bearing Area: A= 16.00 sq. ft. <br /> Soil Pressure OK <br />Soil Pressure: Ps = 546,88 psf Factor of Safety 3,7 <br />Overturning Moments: M1 = (f1)(d1+H) 651,79 <br /> M2= (f2) (d2+H) 3400,66 <br /> M3= (f3)(d3+H) 0,00 ft-Ibs <br /> ft-Ibs <br />Overturning moment due to wind: Mo= 4052,45 ft-Ibs <br />Weight of Footing and Sign: WSF wAH + Ws ft-Ibs <br /> WSF 8750 Ibs <br /> w = 100 pcf density of concrete <br />Resisting Moment Due Weight: MR= (WsF)(W/2) H = Height of footer <br /> MR= 8750,00 ft-Ibs <br />Active Soil Resistance R1= (ASL)L)(D/3) <br /> R1= 3200,00 <br /> R2= (ASL)(L)(D/3) <br /> R2= 3200,00 <br />Resisting Soil Moment: Ms= (R1)(D1)+(R2)(D2) Footer Ok <br /> Ms= 18350,00 ft-Ibs Factor of Safety 6,7 <br />Total Resisting Moment: MT= 2.71 E+04 ft-Ibs <br /> I <br />Moment about (a) Ma: M - (F1D1+F2D2+F3D3) <br /> a- <br /> M - 1542,4421 ft-Ibs <br /> a- <br /> Me= Main Assumes footing rigid subjecting <br /> Mc= 771,22105 ft-Ibs column to bending stresses <br />Column Design: Section Required: Sx = Mc/Fb <br />Yield Strength (psi): 46000 Sx = 0,2011881 in^3 <br /> Moment of Inertia: 1= 4,8538411 in^4 <br />Column Analysis: Section Designed: Sx = I/c Column Ok <br /> Sx= 2,4269206 in^3 Factor of Safety 12.1 <br />Anchor Bolts: In Tension P= Mc/L <br />Bolt Yield Strength 64000 P= 1028.2947 Ibs <br />Area of bolt Ab in2 .334 for 3/4 inch <br />based on minor dia. .606 for 1 inch S= P/Ab Bolt Tension Ok <br /> .969 for 1.25 inch S= 3078.7268 Ibs/in^2 Factor of Safety 20,8 <br />Bolt Yield Strength In Shear <br />P = Shear force 55000 S= P/2nAb Bolt Shear Ok <br />d - bolt minor diameter S= 563,63 Factor of Safety 113,6 <br />Assume Dure shear <br /> <br />Florida #44816 <br />New York #063279-1 <br /> <br />Page 2 of2 <br /> <br /> <br />John Francis Barrett, PE <br />8259 Barton Farms Blvd. <br />Sarasota, FL 34240 <br /> <br />X:\JM Stewart\ <br />8798.xls <br />