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` s � �' CALCULATIONS FOR FREESTANDING SIGNS <br /> .. m <br /> ASCE 7-10 Design Wind Lads <br /> FREESTANDING SOLID SIGNS AND WALLS (AT GRADE) <br /> r��.a.�,..a;u..._:'�c_��._.,.....a..._vim._-._.�.._............o..�__ .._..,....���-.:��.....e.. <br /> Building Specs <br /> V= 130 mph Basic wind speed Risk Category 1 Structure <br /> Exposure C ASD Load Combo Coeff: 0.6 <br /> Calculations <br /> a= 9.5 3-sec gust speed power law exponent Kd= 0.85 Directionality factor <br /> zg= 900, Nominal ht.of atmos. boundary layer Kzt= 1.0 Topographic factor <br /> G= 0.85 <br /> Cf= 1.55 Force Coefficient <br /> ...Width/Height ratio >_0.5 <br /> 130 mph - Exp "C" <br /> Monuments at grade <br /> W/Ht Ratio<_0.5 <br /> DESIGN <br /> SIGN WIND <br /> u <br /> HEIGHT PRESSURES qZ <br /> 15 ft ± 24.7 psf 0.85 18.7 <br /> 18 ft ± 25.6 psf 0.88 19.5 <br /> 20 ft ± 26.2 psf 0.90 19.9 <br /> 30 ft ± 28.6 psf 0.98 21.7 <br /> 35 ft ± 29.5 psf 1.01 22.4 <br /> 40 ft ± 30.3 psf 1.04 23.0 <br /> 45 ft ± 31.1 psf 1.07 23.6 <br /> 50 ft ± 31.8 psf 1.09 24.1 <br /> 55 ft ± 32.4 psf 1.12 24.6 <br /> 60 ft ± 33.0 psf 1.14 25.1 <br /> 70 ft ± 34.1 psf 1.17 25.9 <br /> 80 ft ± 35.1 psf 1.21 26.6 <br /> 90 ft ± 36.0 psf 1.24 27.3 <br /> 100 ft ± 36.8 psf 1.27 27.9 <br /> 110 ft ± 37.5 psf 1.29 28.5 <br /> 120 ft ± 38.2 psf 1.32 29.0 <br /> 130 ft ± 38.9 psf 1.34 29.5 <br /> 140 ft ± 39.5 psf 1.36 30.0 <br /> 150 ft ± 40.1 psf 1.38 30.4 <br /> 175 ft ± 41.4 psf 1.42 31.4 <br /> 200 ft ± 42.6 psf 1.46 32.3 <br /> 250 ft 1± 44.6 psf 1.53 33.9 <br /> Page 2 <br />