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, E�S SeaCS C/�►LCULATIONS FOR FREEST/1NDING SIGNS <br /> �� � earyseals.00m <br /> �Y /�SCE 7-�10-Design Wind-Loads_t.___��-. _-�_- - ___. . -- --: - -- ---_----�--- I <br /> FREESTANDING SOLID SIGNS AND WALLS (AT GRADE) <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 ldw ezponent Kd=_ 0.85 Directionality factor <br /> zg= 900' IVominal ht. of atmos. boundary layer Kzt= 1.0 Topographic factor <br /> G= 0.85 <br /> - - - - � Cf= 1.55 Force Coefficient <br /> ...Width/Heightratio >_0.5 <br /> 130 mph - Exp "C" � <br /> Monuments at grade I� <br /> W/Ht Ratio<_0.5 - <br /> DESIGfV I <br /> SIGN WIND Y � <br /> u <br /> _-_ HEIGHT- PRESSURES _ __ Y qZ <br /> --- -� 15 ff--- t 24J psf __ -_ 0.85 18.7_ I <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 I <br /> i <br /> ' 35 ft ± 29.5 psf _ - --_-_ - 1.01 22.4 ; <br /> -- ---- -T-�------ -- <br /> �-_ ___ -- - - =-�- --p - - - -- - <br /> -,_ _�--40 ft-- ±-.30.3 sf --- - --------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 /> � <br /> 90 ft + 36.0 psf 1.24 _ 27.3 <br /> -- - - - - - - <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 138 30.4 <br /> 175 ft + 41.4 psf 1.42 31.4 i <br /> 200 ft + 42.6 psf 1.46 32.3 <br /> 250 ft ± 44.6 psf 1.53 33.9 1 <br /> � <br /> Page 2 <br />