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PROJECT : PAGE : <br />CLIENT : DESIGN BY : <br />JOB NO. : DATE : 03/14/25 REVIEW BY : <br />INPUT DATA <br />Ex osure cate or (B, C or D)= C <br />Importance factor I = 1.00 Category II <br />Basic wind speed (3 sec. gust wind)V = 110 mph <br />Topographic factor Kzt = 1 Flat <br />Height of mean roof h = 8 ft <br />Roof slope 1 : 12 <br />Roof length L = 30 ft <br />Roof horizontal projected width B = 12 ft <br />Effective area of component / cladding A = 10 ft2 <br />DESIGN SUMMARY <br /> 1. Main Wind-Force Resisting System <br />Max horizontal force / base shear from roof = 0.63 kips <br />+ 0.06 kips (eave & columns increasing) <br />0.69 kips <br />Max vertical download force = 7.09 kips <br />Max vertical uplift force = 7.56 kips <br />Max moment at centroid of base from roof = 27.78 ft-kips <br />+ 2.78 ft-kips (eave & columns increasing) <br />30.56 ft-kips <br /> 2. Component and Cladding Elements <br />Max inward pressure =55 psf <br />Max net outward pressure =85 psf <br />ANALYSIS <br />Velocity pressure <br />qh = 0.00256 Kh Kzt Kd V2 I =22.38 psf <br />where: qh = velocity pressure at mean roof height, h. <br />Kh = velocity pressure exposure coefficient evaluated at height, h,= 0.85 <br />Kd = wind directionality factor.= 0.85 <br />h = height of mean roof = 8.00 ft <br />Main Wind-Force Resisting System <br />p = qh G CN <br />F = p Af <br />where: G = gust effect factor.= 0.85 <br /> = roof angle = 4.76 degree <br /><45 deg. [Satisfactory] <br />Af = roof actual area.= 180.6 ft2, windward <br />= 180.6 ft2, leeward <br />CN = net force coefficients. <br />Check limitation h / L = 0.27 within [0.25 , 1.0][Satisfactory] <br />h / B = 0.67 within [0.25 , 1.0][Satisfactory] <br />CASE CNW CNL CNW CNL CNW CNL CNW CNL <br />A 0.06 -0.53 -0.82 -1.39 1.01 1.06 -0.31 -1.20 <br />p (psf)1.08 -10.00 -15.55 -26.45 19.20 20.21 -5.89 -22.83 <br />F (kips)0.19 -1.81 -2.81 -4.78 3.47 3.65 -1.06 -4.12 <br />B -1.29 -0.04 -1.48 -0.73 0.61 0.15 0.11 -0.41 <br />p (psf)-24.55 -0.69 -28.18 -13.83 11.70 2.93 2.03 -7.79 <br />F (kips)-4.43 -0.13 -5.09 -2.50 2.11 0.53 0.37 -1.41 <br />WIND TO BOTTOM,  = 0o WIND TO TOP,  = 180o <br />CLEAR FLOW OBSTRUCTED CLEAR FLOW OBSTRUCTED <br />CASTILLO <br />ENGINEERING <br />1702 S GARNSEY <br />Wind Analysis for Open Structure <br />4.76 <br />24-1228 <br />13