Use (enclosed/diaphragm buildings) or Figure 6-10 (low-rise, h ≤ 60 ft).
[ q_z = 0.00256 \times 0.70 \times 1.0 \times 0.85 \times (120)^2 \times 1.0 ] [ q_z = 0.00256 \times 0.70 \times 0.85 \times 14400 = 21.9 \text psf ] wind load calculation as per asce 7-05
Always cross-check with exact values rather than approximations. Determining the Cpcap C sub p coefficients for
Where:
qz=0.00256⋅Kz⋅Kzt⋅Kd⋅V2⋅I (lb/ft2)q sub z equals 0.00256 center dot cap K sub z center dot cap K sub z t end-sub center dot cap K sub d center dot cap V squared center dot cap I (lb/ft squared close paren wind load calculation as per asce 7-05
If you'd like, I can help you with specific parts of the calculation, such as: Finding the for your specific building height. Determining the Cpcap C sub p coefficients for your roof type (Gable, Hip, or Flat).
[ q_z = 0.00256 \times 0.98 \times 1.0 \times 0.85 \times (90)^2 \times 1.0 ] [ q_z = 0.00256 \times 0.98 \times 0.85 \times 8100 ] [ q_z = 0.00256 \times 0.833 \times 8100 \quad \text(check: 0.98×0.85=0.833) ] [ q_z \approx 17.3 \text psf ]