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Project Number: 224730-1 <br />Project Location: Santa Ana, CA 92704 <br />AMERICANA OUTDOORS <br />STRUCTURAL CALCULATIONS <br />Page 3 of 25 <br />6/10/2025 <br />WIND LOADS (Main Wind Force Resisting System) <br /> DESIGN PARAMETERSDesign Procedure:ASCE 7-16, 27.4.1Risk Category:III ASCE 7-16, Table 1.5-1Importance Factor: Iw = 1.00 ASCE 7-16, Table 1.5-2Basic Wind Speed:V = 105 mphWind Directionality Factor: Kd = 0.85 ASCE 7-16, Table 26.6-1Exposure Category:C ASCE 7-16, 26.7.3Topographic Factor: Kzt = 1.00 (assumed) ASCE 7-16, 26.8.2Gust Effect Factor:G = 0.85 ASCE 7-16, 26.11.1Enclosure Classification:Open ASCE 7-16,26.12Internal Pressure Coefficient: G Cpi = 0.00 ASCE 7-16, Table 26.13-1Roof Type:Roof Width:22 ftRoof Length:56.5 ftRoof Eave Height: he = 8 ftRoof Angle:θ =5 degreesRoof Peak Height: hp = 10 ftRoof Mean Height:h = 8 ftVelocity Pressure Exposure Coefficient:Kh = 0.85 ASCE 7-16, Table 26.10-1Ground Elevation Factor:Ke = 1.00 ASCE 7-16, Table 26.9-1 (conservative approximation)Velocity Pressure: qh = 20.392 ASCE 7-16, Eqn. 26.10-1 0.00256 Kh Kzt Kd Ke V^2 IwWind Blockage:(Less than 50% obstructed below roof)Determine net pressure coefficent, using linear interpolation for values not shown in reference table. For longitudinal wind, say horizontal distance from windward edge is less than h for entire roof area (conservative). <br />Wind Direction, γ Case A Case BNormal to Ridge, γ = 0°ASCE 7-16, Fig. 27.3-4Windward:0 -1.3Leeward:-0.57 -0.03Normal to Ridge, γ = 180°ASCE 7-16, Fig. 27.3-4Windward:1 0.7Leeward:1.1 0.17Parallel to Ridge, γ = 90°-0.8 0.8 ASCE 7-16, Fig. 27.3-7Calculate design wind pressures using equation:p = qh G CN ASCE 7-16, Eqn. 27.3-2 <br />Wind Direction, γ Case A Case BNormal to Ridge, γ = 0°Windward:0 -22.5Leeward:-9.9 -0.5Normal to Ridge, γ = 180°Windward:17.3 12.1Leeward:19.1 2.9Parallel to Ridge, γ = 90°-13.9 13.9 <br />Directional Procedure <br />Net Pressure Coefficients, C N , for MWFRS <br />Design Wind Pressures for MWFRS Pressures are shown in pounds per square foot. Positive pressure acts toward roof surface; negative pressure acts away from roof surface. <br />Clear Wind Flow <br />Monoslope Free Roofs <br />Page 5 of 111