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Seals CALCULATIONS FOR WALL-MOUNTED SIGNS <br /> M.N eawyseatsmm <br /> ASCE 7-10 Design Wind Loads <br /> WALL-MOUNTED SIGNS <br /> Building Specs <br /> V= 140 mph Basic wind speed ASD Load Combo oeff: 0.6 <br /> Exposure C <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 /> Gcpi= 0 Internal pressure coeff <br /> A= 10 sq ft Tributary area <br /> 140 mph - Exp "C" <br /> WALL-MOUNTED SIGNS <br /> ASD WIND PRESSURES <br /> SIGN CENTER CORNER �� a <br /> HEIGHT (Zone 4) (Zone 5) Y qZ U U u, <br /> 15 ft 23.9 psf 30.4 psf 0.85 36.2 - .10 -1.40 <br /> 20 ft 25.4 psf 32.3 psf 0.90 38.5 - .10 -1.40 <br /> 25 ft 26.6 psf 33.9 psf 0.95 40.3 - .10 -1.40 <br /> 30 ft 27.6 psf 35.2 psf 0.98 41.9 - .10 -1.40 <br /> 35 ft 28.6 psf 36.4 psf 1.01 43.3 - .10 -1.40 <br /> 40 ft 29.4 psf 37.4 psf 1.04 44.5 - .10 -1.40 <br /> 45 ft 30.1 psf 38.3 psf 1.07 45.6 _' .10 -1.40 <br /> 50 ft 30.8 psf 39.2 psf 1.09 46.6 - .10 -1.40 <br /> 55 ft 31.4 psf 40.0 psf 1.12 47.6 - .10 -1.40 <br /> 60 ft 32.0 psf 40.7 psf 1.14 48.5 - .10 -1.40 <br /> 70 ft 27.0 psf 54.1 psf 1.17 50.1 - .90 -1.80 <br /> 80 ft 27.8 psf 55.6 psf 1.21 51.5 - .90 -1.80 <br /> 90 ft 28.5 psf 57.0 psf 1.24 52.8 - .90 -1.80 <br /> 100 ft 29.1 psf 58.3 psf 1.27 54.0 _().90 -1.80 <br /> 110 ft 29.7 psf 59.5 psf 1.29 55.1 - .90 -1.80 <br /> 120 ft 30.3 psf 60.6 psf 1.32 56.1 - .90 -1.80 <br /> 130 ft 30.8 psf 61.6 psf 1.34 57.0 - .90 -1.80 <br /> 140 ft 31.3 psf 62.6 psf 1.36 57.9 - .90 -1.80 <br /> 150 ft 31.7 psf 63.5 psf 1.38 58.8 - .90 -1.80 <br /> 175 ft 32.8 psf 65.6 psf 1.42 60.7 - .90 -1.80 <br /> 200 ft 33.7 psf 67.5 psf 1.46 62.5 _).90 -1.80 <br /> 250 ft 35.3 psf 70.7 psf 1.53 65.5 _).90 -1.80 <br /> Page 2 <br />