Calculation the wind velocity pressures of 160 ft tall office building illustrated in Figure 1 using the analytical procedure of ASCE 7-05 referred to Kishor C. Mehta and William L. Colbourne - Wind Loads - Guide to the Wind Load Provisions of ASCE 7-05 (ASCE) (2011) .
Figure 1
Location : Near Houston, Texas
Topography : Homogeneous
Terrain : Suburban
Dimensions : 100ft x 200ft in plan
Roof height of 157 with 3 ft paraphet
Flat roof
Framing : Reinforced concrete rigid frame in both directions
Floor and roof slabs provide diaphragm action
Fundamental natural frequency is assumed to be greater than 1 Hz
Velocity pressures of MWFRS
Height, ft | Reference | Building Design Suite | Percent Difference | |||
|---|---|---|---|---|---|---|
Kz | qz, psf | Kz | qz, psf | Kz | qz, psf | |
0-15 | 0.57 | 17.9 | 0.57 | 17.86 | 0% | 0.22% |
30 | 0.70 | 21.9 | 0.70 | 21.93 | 0% | 0.13% |
50 | 0.81 | 25.4 | 0.81 | 25.33 | 0% | 0.27% |
80 | 0.93 | 29.1 | 0.93 | 29.03 | 0% | 0.24% |
120 | 1.04 | 32.6 | 1.04 | 32.59 | 0% | 0.03% |
157 | 1.12 | 35.1 | 1.12 | 35.09 | 0% | 0.02% |
160 | 1.13 | 35.4 | 1.13 | 35.41 | 0% | 0.02% |
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