Calculate Calculation the wind velocity pressures of 160 ft tall office building illustrated in Figure 1 using the analytical procedure of ASCE 7-05.
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Location : Near Houston, Texas
Topography : Homogeneous
Terrain : Suburban
Dimensions : 100ft x 200ft in plan,
Roof height of 157 with 3 ft paraphet
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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, ipsfpsf | |
0-15 | 0.57 | 2417.39 | 0.57 | 2417.3186 | 0% | 0.04%22% |
30 | 0.70 | 2921.89 | 0.70 | 2921.8593 | 0% | 0.17%13% |
50 | 0.81 | 3425.54 | 0.81 | 3425.5533 | 0% | 0.14%27% |
80 | 0.93 | 3929.61 | 0.93 | 3929.6603 | 0% | 0.15%24% |
120 | 1.04 | 4432.36 | 1.04 | 4432.3659 | 0% | 0.14%03% |
157 | 1.12 | 4735.71 | 1.12 | 4735.7709 | 0% | 0.15%02% |
160 | 1.13 | 4835.14 | 1.13 | 4835.1941 | 0% | 0.19%02% |