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<br />FLORIDA SIGN UNLIMITED
<br />
<br />SIGN FOR:
<br />
<br />WAL*MART ZEPHYRHILLS
<br />
<br />WINDLOAD BASED ON ASCE-7-98 SIMPLIFIED PROCEDURE
<br />MINIMUM DESIGN LOADS FOR BUILDINGS AND OTHER STRUCTURES
<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 30,00 FEET WIND CENTER MOMENT
<br /> DIAMETER LOAD "P" OF IN
<br /> OR WIDTH HEIGHT AREA KSF. PRESURE KFT,
<br />SIGN 1 20,00 5.42 108,33 0,0313 3,39 27.29 92,42
<br />COVER OR 2 0,84 0,67 0,56 0,0313 0,02 24.25 0.42
<br />POLE 3 10.00 4,00 40,00 0.0313 1.25 21,92 27.40
<br /> 4 0,84 0,67 0,56 0,0313 0,02 19,58 0,34
<br /> 5 8,00 1,50 12,00 0,0313 0,38 18,50 6,94
<br /> 6 1.00 17.75 17,75 0.0313 0.55 8,87 4,92
<br /> TOTALS= 179.21 5,05 25.27 127.54
<br />
<br />H= 25.27 FEET
<br />SECTION MODULUS REQUIRED Sx=
<br />127,54 X 12/29,3 = 52.23 IN^3
<br /># POLES= 1
<br />SxREQD,= 52,23 IN^3
<br />USE 12" DIAM, EXTRA STRONG STEEL PIPE 65.42#/LF SX=56,7IN^3 > 52,231N^3 OK
<br />
<br />FROM 13 FEET UP WIND CENTER MOMENT
<br /> DIAMETER LOAD uP" OF IN
<br /> OR WIDTH HEIGHT AREA KSF. PRESURE KFT,
<br />SIGN 1 20,00 5.42 108.40 0,0313 3,39 14,29 48,42
<br />COVER OR 2 0,84 0,67 0,56 0.0313 0,02 11,25 0.20
<br />POLE 3 10.00 4,00 40,00 0,0313 1.25 8,91 11,14
<br /> 4 0,84 0.67 0,56 0,0313 0,02 6,58 0,12
<br /> 5 8.00 1,50 12,00 0,0313 0,38 5.49 2,06
<br /> 6 0,84 4.75 3,99 0,0313 0,12 2,36 0,29
<br /> 161,53 5,05 12,27 61,94
<br />
<br />H= 12.27 FEET
<br />SECTION MODULUS REQUIRED Sx=
<br />61,94 X 12/29,3 = 25,37 IN^3
<br /># POLES= 1
<br />SxREQD,= 25,37 IN^3
<br />USE 10" DIAM EXTRA STRONG STEEL PIPE 54.74#/LF SX= 39,41N^3 >25,37 IN^3
<br />
<br />MINIMUM LENGTH FOR FOUNDATION
<br />DEPTH OF FOOTER = 4 FEET # OF FOOTERS 1
<br />LENGTH= P X (2,37 X D X 2,64 X H) / D X D X 2 =
<br />LENGTH = 12,02 FEET
<br />MIN WIDTH 4,81 FEET
<br />~..AKE OOTER 12' LONG BY 5' WIDE X 4' DEEP
<br />UpyrRDS OF CONCRETE
<br />
<br />
<br />~P.E.
<br />#17479
<br />JUNE 16, 2002
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