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<br />ROBSON CORPORATION <br /> <br />SIGN FOR: <br /> <br />Daugherty Rd. Professional Center <br />38306 Daugherty Road <br />Zepherhills, FI. <br /> <br />DESIGN TO ASCE-7 -98 SIMPLIFIED PROCEDURE <br />ALLUMINUM IS 6061 ALLOY TEMPER T-6 <br />WIND SPEED 130 MPH, 1= CATEGORY 1 =0.77, EXPOSURE "C" FACTOR 1.4 <br />DESIGN WIND PRESSURE = 29*0.77*1.4= 31.26#/SF <br /> <br />~. <br /> <br />FOUNDATION CALCULATION <br />TOTAL SIGN HEIGHT 11.00 FEET WIND CENTER MOMENT <br /> DIAMETER LOAD uP" OF IN <br /> OR WIDTH HEIGHT AREA KSF. PRESURE KFT. <br />SIGN 1 11.33 11.00 124.63 0.0313 3.90 5.50 21.43 <br />COVER OR 2 0.00 0.0313 0.00 0.00 0.00 <br />POLE 3 0.00 0.0313 0.00 0.00 0.00 <br /> 4 0.00 0.0313 0.00 0.00 0.00 <br /> 5 0.00 0.0313 0.00 0.00 0.00 <br /> TOTALS= 124.63 3.90 5.50 21.43 <br /> <br />H= 5.50 FEET <br />SECTION MODULUS REQUIRED Sx= MOMENT IN KFT * 12/35 <br />21.43 X 12/29.3 8.78 IN^3 <br /> <br /># POLES= <br />SxREQD.= <br />USE <br /> <br />2 <br />4.39 IN^3 <br />6" DIAMETER EXTRA HEAVY STEEL PIPE SM=12.2 IN^3 >4.39 IN^30K* <br /> <br />MINIMUM LENGTH FOR FOUNDATION <br /> <br />"DEPTH OF FOOTER =) 3.5 FEET / <br /># OF FOOTERS = 1 <br />LENGTH= P X (2.37 X 0 X 2.64 X H) / 0 X 0 X 1.4 = <br /> <br />LENGTH = (5.18 FEET? <br />MIN WIDTH t!-.07 FEET <br />MAKE FOOTERS 12' LONG BY 2' WIDE X 3'-6" DEEP <br />y~E~RETE <br /> <br />~~oms P.E. . <br />#17479 <br />FEB. 17, 2005 <br /> <br /><),-u;.. <br />/" ~ <br />r"'O <br /> <br /> <br />f4v-6^1 <br /> <br />.... B ~ ~ ~ <br />