Calculate the wind velocity pressures of 160 ft tall office building illustrated in Figure 1 using the analytical procedure of ASCE 7-05.
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, ipsf | |
0-15 | 0.57 | 24.3 | 0.57 | 24.31 | 0% | 0.04% |
30 | 0.70 | 29.8 | 0.70 | 29.85 | 0% | 0.17% |
50 | 0.81 | 34.5 | 0.81 | 34.55 | 0% | 0.14% |
80 | 0.93 | 39.6 | 0.93 | 39.66 | 0% | 0.15% |
120 | 1.04 | 44.3 | 1.04 | 44.36 | 0% | 0.14% |
157 | 1.12 | 47.7 | 1.12 | 47.77 | 0% | 0.15% |
160 | 1.13 | 48.1 | 1.13 | 48.19 | 0% | 0.19% |
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