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1 • <br /> Wind Load Calculation for Other Structures <br /> (Reference:2015 IBC Section 1609&ASCE 7-10 Chapter 29) <br /> Wind Velocity Pressure: <br /> Average Roof Height of Building,h(ft) = 112 (Per Architectural Drawings) <br /> Height of Other Structure,z(ft) = 118 (Per Architectural Drawings) <br /> Basic Wind Speed,V3,(mph) = 110 (ASCE Figure 26.5-1) <br /> Exposure Category = C (ASCE Section 26.7.3) <br /> Risk Category = IV (IBC Table 1.5-1) <br /> Velocity Pressure Exposure Coefficient,Kz = 1.31 (ASCE Section 29.3.1&Table 29.3-1) <br /> Topographic Factor,K„ = 1.03 (ASCE Section 26.8.2&Figure 26.8-1) <br /> Wind Directionality Factor,Ka = 0.85 (ASCE Section 26.6&Table 26.6-1) <br /> Velocity Pressure,qz(psf) = 0.00256KzKztKdVA2 (ASCE Eq.29.3-1) <br /> qz= 35.39 psf <br /> Design Wind Load on Other Structures <br /> Gust Effect Factor,G = 0.85 (ASCE Section 26.9) <br /> Net Force Coefficient,Cf = 1.4 (ASCE Figure 29.4-1 to 29.5-3) <br /> Projected Area Normal to the Wind,Afar A,(ft) = At or A, (Projected Wind Area) <br /> Design Lateral Wind Load,F(lbs) gzGCfAf (ASCE Eq.29.5-1) <br /> LRFD F= 42.1 psf x At <br /> ASD F= 25.3 psf XAt <br /> Kr or Kb(ASCE Table 29.3-1) _ <br /> Height Exposure B Exposure C Exposure D <br /> Z(ft) <br /> 0 0.57 0.85 1.03 <br /> 15 0.57 0.85 1.03 _ <br /> 20 0.62 0.90 1.08 _ <br /> 25 0.66 0.94 1.12 _ <br /> 30 0.70 0.98 1.16 _ <br /> 40 0.76 1.04 1.22 • <br /> 50 0.81 1.09 1.27 _ <br /> 60 0.85 1.13 1.31 _ • <br /> 70 0.89 1.17 1.34 <br /> 80 0.93 1.21 1.38 _ <br /> 90 0.96 1.24 1.40 <br /> 100 0.99 1.26 1.43 _ <br /> 120 1.04 1.31 1.48 <br /> 140 1.09 1.36 1.52 _ <br /> 160 1.13 1.39 1.55 _ <br /> 180 1.17 1.43 1.58 <br /> 200 1.20 1.46 1.61 _ <br /> DeSCApllon Dr Date <br /> NAL 11/13/2017 <br /> Cheded Date <br /> p Wind Loads For Components and Systems - 1 <br /> ENGINEERING <br /> Protect Scale sheet Na <br /> SEA DT Everett N.T.S. a s <br /> lob Na l7 <br /> Edmonds,WA 200 <br /> 8020 17015.270 1 <br />