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[� 5FA Design Group, LLE <br />®� STRUCTUItAL 1 GEOTECHNICAL I SPECIAL INSPECTIONS <br />PROJECT <br />Bankston Residence <br />Criteria <br />PROJECT NO. ISHEET NO. <br />Wind Aiaiysis for Low-rise Building, Based on ASCE 7-16 <br />INPUT DATA <br />Exposure category (26.7.3) <br />Basic wind speed (26.5.1) <br />Topographic factor (26.8 & Table 26.8-1) <br />Building height to eave <br />Building height to ridge <br />Building length <br />Building width <br />Ground Elevation Above Sea Level <br />Velocity pressure <br />B <br />V = <br />98 mph <br />Krt = <br />1.00 Flat <br />he = <br />9 ft c` <br />d <br />hr = <br />14 ft <br />L = <br />50 ft <br />B = <br />50 ft <br />E = <br />291 ft <br />qh = 0.00256 Kh Kzt Kd Ke V^2 = 14.63 psf <br />where: qh = velocity pressure at mean roof height, h. (Eq. 26.10-1 & Eq. 30.3-1) <br />Kh = velocity pressure exposure coefficient evaluated at height, h, (Tab. 26.10-1) = 0.700 <br />Kd = wind directionality factor. (Tab. 26.6-1, for building) = 0.85 <br />Ka = ground elevation factor. (Tab. 26.9-1) = 1.00 <br />h = mean roof height = 11.50 ft <br />< 60 ft, Satisfactory (ASCE 7-10 26.2.1) <br />jbesign pressures for MWFRS <br />p = qh [(G CPf )-(G CPr )] pmin = 16 psf for wall area (28.3.4) <br />where: p = pressure in appropriate zone. (Eq. 28.3-1). Pmin = 8 psf for roof area (28.3.4) <br />G Cp f = product of gust effect factor and external pressure coefficient, see table below. (Fig. 28.3-1) <br />G Cp i = product of gust effect factor and internal pressure coefficient. (Tab. 26.13-1, Enclosed Building) <br />0.18 or -0.18 <br />a = width of edge strips, Fig 28.3-1, note 9, MAX[ MIN(0.1 B, 0.1 L, 0.4h), MIN(0.04B, 0.04L), 3] = 4.60 ft <br />--....s-._..--- <br />Net Pressures , Load Cae A <br />(psf) <br />Roof angle <br />0 = 11.31 <br />G Cpr <br />Net Pressure with <br />Surface <br />(+GCaI) <br />(-GCPI) <br />1 <br />0.45 <br />9.28 <br />4.02 <br />2 <br />-0.69 <br />-7.46 <br />-12.73 <br />3 <br />-0.42 <br />-3.46 <br />-8.72 <br />4 <br />-0.35 <br />-2.47 <br />-7.74 <br />1 E <br />0.69 <br />12.73 <br />7.46 <br />2E <br />-1.07 <br />-13.02 <br />-18.29 <br />3E <br />-0.66 <br />-6.95 <br />-12.22 <br />4E <br />-0.52 <br />4.95 <br />-10.22 <br />Roof angle 0 = 11.31 <br />GCpr <br />Net Pressure with <br />Surface <br />(+GCor) <br />(-GCpl) <br />1 <br />-0.45 <br />-3.95 <br />-9.22 <br />2 <br />-0.69 <br />-7.46 <br />-12.73 <br />3 <br />-0.37 <br />-2.78 <br />-8.05 <br />4 <br />-0.45 <br />-3.95 <br />-9.22 <br />5 <br />0.40 <br />8.48 <br />3.22 <br />6 <br />-0.29 <br />-1.61 <br />-6.88 <br />1 E <br />-0.48 <br />-4.39 <br />-9.66 <br />2E <br />-1.07 <br />-13.02 <br />-18.29 <br />3E <br />-0.53 <br />-5.12 <br />-10.39 <br />4E <br />-0.48 <br />-4.39 <br />-9.66 <br />5E <br />0.61 <br />11.56 <br />6.29 <br />6E <br />1 -0.43 <br />1 -3.66 <br />1 -8.92 <br />2 21 <br />1-3 <br />6a C11.Y1 ftP1� FWD QiFi= <br />Load Case A (Trans+rerse) Load Case B (Long@udinal) <br />Basic Load C430s <br />