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Basic Load Cases in Transverse Direction Basic Load Cases in Longitudinal Direction <br />Area Area <br />(ft2)(+GCp i )(-GCp i )(ft2)(+GCp i )(-GCp i ) <br />1 552 3.28 7.28 1 357 1.58 4.17 <br />2 1457 -25.54 -14.97 2 1305 -22.87 -13.40 <br />3 1457 -18.02 -7.45 3 1305 -14.46 -4.99 <br />4 552 -6.12 -2.12 4 357 -3.38 -0.79 <br />1E 66 0.71 1.19 1E 74 0.64 1.18 <br />2E 174 -4.37 -3.11 2E 326 -8.21 -5.85 <br />3E 174 -2.81 -1.55 3E 326 -4.67 -2.30 <br />4E 66 -0.97 -0.49 4E 74 -0.91 -0.37 <br />Horiz. 8.94 8.94 Horiz. 6.52 6.52 <br />Vert. -49.30 -26.31 Vert. -48.78 -25.79 <br />10 psf min.Horiz. 10.03 10.03 10 psf min.Horiz. 4.31 4.31 <br />Sec. 6.1.4.1 Vert. -31.69 -31.69 Sec. 6.1.4.1 Vert. -31.69 -31.69 <br />Torsional Load Cases in Transverse Direction Torsional Load Cases in Longitudinal Direction <br />Area Area <br />(ft2)(+GCp i )(-GCp i )(+GCp i )(-GCp i )(ft2)(+GCp i )(-GCp i )(+GCp i )(-GCp i ) <br />1 243 1.45 3.21 25 55 1 142 0.63 1.66 4 10 <br />2 642 -11.25 -6.59 -46 -27 2 979 -17.15 -10.05 78 46 <br />3 642 -7.94 -3.28 32 13 3 979 -10.84 -3.75 -49 -17 <br />4 243 -2.70 -0.94 46 16 4 142 -1.34 -0.31 8 2 <br />1E 66 0.71 1.19 25 41 1E 74 0.64 1.18 10 19 <br />2E 174 -4.37 -3.11 -36 -25 2E 326 -8.21 -5.85 37 27 <br />3E 174 -2.81 -1.55 23 13 3E 326 -4.67 -2.30 -21 -10 <br />4E 66 -0.97 -0.49 33 17 4E 74 -0.91 -0.37 15 6 <br />1T 309 0.46 1.02 -9 -20 1T 216 0.24 0.63 -2 -6 <br />2T 815 -3.57 -2.09 16 10 2T 1305 -5.72 -3.35 -52 -31 <br />3T 815 -2.52 -1.04 -12 -5 3T 1305 -3.61 -1.25 33 11 <br />4T 309 -0.86 -0.30 -17 -6 4T 216 -0.51 -0.12 -5 -1 <br />83 83 55.5 55.5 <br />Design pressures for components and cladding <br />p = qh[ (G Cp) - (G Cpi)] <br />where: p = pressure on component <br />pmin = 16 psf (Sec. 30.2.2) <br />G Cp = external pressure coefficient. <br /> see table below <br />Effective <br />Area (ft2) GCP - GCP GCP - GCP GCP - GCP GCP - GCP GCP - GCP <br />Comp.10 0.50 -1.00 0.50 -1.40 0.50 -1.40 1.00 -1.10 1.00 -1.40 <br />Positive Negative Positive Negative Positive Negative Positive Negative Positive Negative <br />16.00 -23.77 16.00 -31.83 16.00 -31.83 23.77 -25.78 23.77 -31.83 <br />Pressure <br />Surface Pressure (k) with <br />Zone 1 Zone 2 <br />Total Horiz. Torsional Load, MT <br />Comp. & Cladding Zone 1 <br />( psf ) <br />Zone 3 Zone 4Zone 2 <br />Torsion (ft-k) <br />Total Horiz. Torsional Load, MT <br />Zone 5 <br />Zone 3 Zone 4 Zone 5 <br />Pressure (k) withTorsion (ft-k)Surface <br />S <br />Surface Pressure (k) withPressure (k) with <br />S <br />Surface <br />78