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Effects of length-width ratio on extreme wind pressure of rectangular-sectioned tall buildings
Many buildings with large length-width ratios have been widely constructed in the residential areas of cities. The potential risk of cladding components should be concerned. The study investigated the effects of length-width ratio on extreme wind pressure of rectangular-sectioned tall buildings. When the long side is windward, the positive pressures in the windward show slight discrepancies in models with different length-width ratios. The extreme suction in the crosswind side will decrease when the length-width ratio increases once the length-width ratio is larger than 1.5. The extreme negative pressures on the leeward side demonstrate considerable discrepancies among the models with different length-width ratios. When the length-width ratio is larger than 3, it can be noticed that the higher the length-width ratio, the lower extreme suction the model will suffer. When the short side is windward, extreme positive pressures differ slightly. The suction in the side face shows obvious distinctions due to different length-width ratios. When the depth is relatively small, the flow separates in the corner and generates the wide wake that induces the large suction in the leeward, but when the depth is relatively large, the separated flow reattaches in the downstream, wakening the wake in the leeward. The lower extreme suction in the leeward the model will suffer with the higher length-width ratio.
Effects of length-width ratio on extreme wind pressure of rectangular-sectioned tall buildings
Many buildings with large length-width ratios have been widely constructed in the residential areas of cities. The potential risk of cladding components should be concerned. The study investigated the effects of length-width ratio on extreme wind pressure of rectangular-sectioned tall buildings. When the long side is windward, the positive pressures in the windward show slight discrepancies in models with different length-width ratios. The extreme suction in the crosswind side will decrease when the length-width ratio increases once the length-width ratio is larger than 1.5. The extreme negative pressures on the leeward side demonstrate considerable discrepancies among the models with different length-width ratios. When the length-width ratio is larger than 3, it can be noticed that the higher the length-width ratio, the lower extreme suction the model will suffer. When the short side is windward, extreme positive pressures differ slightly. The suction in the side face shows obvious distinctions due to different length-width ratios. When the depth is relatively small, the flow separates in the corner and generates the wide wake that induces the large suction in the leeward, but when the depth is relatively large, the separated flow reattaches in the downstream, wakening the wake in the leeward. The lower extreme suction in the leeward the model will suffer with the higher length-width ratio.
Effects of length-width ratio on extreme wind pressure of rectangular-sectioned tall buildings
Ke, Yanyu (author) / Shen, Guohui (author) / Yu, Hangcong (author) / Xie, Jiming (author)
2021-11-06
397965 byte
Conference paper
Electronic Resource
English
Torsional dynamic wind loads on rectangular tall buildings
| Online Contents | 2004
Definition of Wind Pressure on Tall Buildings
| Springer Verlag | 1988