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<br />ROBSON CORPORATION <br /> <br />SIGN FOR: <br /> <br />Daugherty Rd. ProfessiQnal Center <br />38306 Daugherty Rtlad <br />Zepherhills, Fl. <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 />FOUNDATION CALCULATION <br />TOTAL SIGN HEIGHT 11.00 FEET WIND CENTER MOMENT <br /> DIAMETER LOAD lip" 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 f29.:: 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^3 O.K.. <br /> <br />DEPTH OF FOOTER = 3.5 FEET <br /># OF FOOTERS = 1 <br />LENGTH= P X (2.37 X D X 2.64 X H) / D X D X 1.4 = <br /> <br />LENGTH = 5.18 FEET <br />MIN WIDTH 2.07 FEET <br />MAKE F OTERS ~ BY 2' WlnF U-6" DEEP <br />U E UYD OF CON~ <br /> <br />/ <br /> <br />'f)~ <br />~oD <br /> <br />, <br /> <br />'1.:t:-- <br />t7" <br /> <br />MINIMUM LENGTH FOR FOUNDATION <br /> <br /> <br />endrik Ooms P.E. <br />#17479 <br />FEB. 17, 2005 <br /> <br /> <br />J13~() <br />