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<br />Job Description <br />Ameriwash <br />Zephyrhills, FL <br /> <br />25 FT Pole <br /> <br />EnCon Services, Inc. <br />Sign Design Calculations <br /> <br />PREPARED BY: EnCon Services, Inc. <br />2272 Jaudon Road <br />Dover, FL 33527 <br />813-655-3373 <br />F 813-655-9814 <br /> <br />Design per ASCE 7-98 & 2001 Florida Building Code <br /> <br />Importance Factor <br />Kzt <br />Exposure B Case 2 <br />Kd <br />Kz <br />V <br />Cf <br />G <br /> <br />Number of Poles <br /> <br />Sign <br /> <br />Top <br />Middle <br /> <br />Bottom <br /> <br />Poles <br /> <br />Required Sx <br />Provided Sx <br /> <br />Aaron Biedenbach, P.E. <br />FL# 52949 <br />FL EB# 9394 <br />FL CBC# 060535 <br />FL QB# 22527 <br /> <br />1 <br />0.66 Table 6-5 Pg 60 ASCE 7-98 <br />120 mph <br />1.2 M/N (Larger/Smaller <= 6.0 <br />0.85 Wind Pressure <br />1 <br /> <br /> <br /> <br />P = Force <br /> <br />71.20 <br /> <br />19.95 <br /> <br />(Ib) <br />1767 <br />o <br />o <br />745 <br />2,511 <br /> <br />30.00 <br /> <br />7.75 <br />Totals <br /> <br />13.41 inches cubed per pole <br />22.7 8"x8"x5/15 A500 Steel Tube <br /> <br />OK <br /> <br />Base Size Number of Bases 1 <br />Soil Resistive Moment (Sr) + Concrete Weight Moment (Me) >> Total Moment Sign <br />Base Dimensions <br /> <br />Weight of Concrete = <br />Assume Soil Pressure = <br /> <br />A=( .68)(d )(w)(0.34)( d)( 400) <br />B=(0.32)( d )(w)(O .90)( d)( 400) <br />Total Soil Resistance (Sr) <br />Mc=(w)(l)( d)( 147)(.5)(1) <br />Moment from Weight of Sign <br /> <br />6 Feet Long <br />6 Feet Wide <br />4 Feet Deep <br />147 PCF <br />400 PSF/foot of depth <br />8878.08 ft-Ib <br />11059.2 ft-Ib <br />19937.28 ft-Ib <br />63504 ft-Ib <br />3204 ft-Ib <br /> <br />Perpendicular to sign face <br />Parallel to sign face <br />From Grade <br /> <br />Total Moment Base <br />Factor of Safety = <br /> <br />Cubic Yards Concrete in base <br /> <br />Spade Foundation Base Size per Pole <br />Number of bases <br />P = Horizontal Force (Pounds) <br />H = Moment/Force (FT) <br />S1 = Soil Pressure (PSF) <br />D = Depth of footing (FT) <br />B = Width offooting paralell to face (FT) <br />L = Length of footing perp. to face (FT) <br /> <br />Ameriwash Zephyrhills 25 pole <br /> <br />86,645 ft-Ib <br />2.1 <br /> <br />5.3 cu. yd. <br /> <br />1 <br />2511 <br />16.3 <br />2000 <br />6.0 <br />2.0 <br />0,8 <br /> <br />B = P(2.37D+2.64H) <br /> <br />S1D^2 <br /> <br />Base Size Required <br />6.0 FT <br />3.0 FT Dia. <br /> <br />