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Wind Load Calculation far 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,Vie(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,t = 1.03 (ASCE Section 26.8.2&Figure 26.8-1) <br /> Wind Directionality Factor,Kd = 0.85 (ASCE Section 26.6&Table 26.6-1) <br /> Velocity Pressure,qz(psf) = 0.00256KzKztKdV^2 (ASCE Eq.29.3-1) <br /> qz= 35.39 psf <br /> I Design Wind Load on Other Structures <br /> i Gust Effect Factor,G = 0.85 (ASCE Section 26.9) <br /> i <br /> Net Force Coefficient,Cf = 1.4 (ASCE Figure 29.4-1to 29.5-3) <br /> Projected Area Normal to the Wind,A,or A,{ft2) = Al or A, (Projected Wind Area) <br /> Design Lateral Wind Load,F(Ibs) = gzGCfAf (ASCE Eq.29.5-1) <br /> LRFD F= 42.1 psf xAt <br /> ASD F= 25.3 psf x At <br /> KZ or Kb(ASCE Table 29.3-1) <br /> Height Exposure B Exposure C Exposure D <br /> 2(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 /> I 60 0.85 1.13 1.31 <br /> I 70 0.89 1.17 1.34 <br /> I 80 90 0.93 1,21 138 <br /> 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 1.20 146 1.61 <br /> l <br /> oeudpteo et eate <br /> checked Sae <br /> o C Wind Loads For Components and Systems - <br /> ENGINEEF2ING <br /> Pole Scale Shea No. <br /> SEA DT Everett N.T.S. <br /> Suite 200 fob No. 4 .i. <br /> Edmonds,WA98020 20 04 e--o$ <br /> i <br />