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INPUT DATA <br />Exposure category (B, C or D)B <br />Importance factor I =1.00 Category II <br />Basic wind speed V =110 mph <br />Topographic factor Kzt =1 Flat <br />Building height to eave he =8.00 ft <br />Building height to ridge hr =11.75 ft <br />Effective area of components A =441.00 2 <br />DESIGN SUMMARY <br />Max horizontal force normal to building length, L, face =2.96 kips X 0.6=1.77 kips (ASD) <br />Max horizontal force normal to building length, B, face =2.89 kips X 0.6=1.73 kips (ASD) <br />Max total horizontal torsional load =8 ft-kips <br />Max total upward force =6.23 kips <br />ANALYSIS <br />Velocity pressure <br />qh = 0.00256 Kh Kzt Kd V2 I =18.43 psf <br />where: qh = velocity pressure at mean roof height, h. <br />Kh = velocity pressure exposure coefficient evaluated at height, h,= 0.70 <br />Kd = wind directionality factor =0.85 <br />h = mean roof height =9.88 ft <br />< 60 ft, [Satisfactory] <br />Design pressures for MWFRS <br />p = qh [(G Cpf )-(G Cpi )] <br />where:p = pressure in appropriate zone <br />G Cp f = product of gust effect factor and external pressure coefficient <br />G Cp i = product of gust effect factor and internal pressure coefficient <br /> =0.18 or -0.18 <br />a = width of edge strips, MAX[ MIN(0.1B, 0.4h), 0.04B,3] =3.00 ft <br />Net Pressures (psf), Basic Load Cases Net Pressures (psf), Torsional Load Cases <br />20.40 0.00 20.40 <br />(+GCp i )(-GCp i )(+GCp i )(-GCp i )(+GCp i )(-GCp i ) <br />1 0.53 6.47 13.11 0.40 4.05 10.69 1T 0.53 1.62 3.28 <br />2 -0.65 -15.37 -8.74 -0.69 -16.03 -9.40 2T -0.65 -3.84 -2.18 <br />3 -0.48 -12.13 -5.49 -0.37 -10.14 -3.50 3T -0.48 -3.03 -1.37 <br />4 -0.43 -11.20 -4.56 -0.29 -8.66 -2.03 4T -0.43 -2.80 -1.14 <br />1E 0.80 11.35 17.98 0.61 7.93 14.56 0.00 <br />2E -1.02 -22.05 -15.41 -1.07 -23.04 -16.40 <br />3E -0.68 -15.92 -9.28 -0.53 -13.09 -6.45 (+GCp i )(-GCp i ) <br />4E -0.63 -15.00 -8.36 -0.43 -11.24 -4.61 1T 0.40 1.01 2.67 <br />5 -0.45 -11.61 -4.98 -0.45 -11.61 -4.98 2T -0.69 -4.01 -2.35 <br />6 -0.45 -11.61 -4.98 -0.45 -11.61 -4.98 3T -0.37 -2.53 -0.88 <br />4T -0.29 -2.17 -0.51 <br />Net Pressure withSurface <br />Roof angle q = <br />G Cp f <br />Wind Analysis for Low-rise Building, Based on ASCE 7-16 / IBC 2021 / CBC 2022 <br />Roof angle q = <br />G Cp f <br />Net Pressure with Surface <br />Roof angle q = <br />G Cp f <br />Net Pressure withSurface <br />Roof angle q = <br />Net Pressure withG Cp f <br />jose@ramirezstructural.com <br />(562) 519-6045 <br />816 N Towner St #2 <br />9/23/2024