两串列方柱局部脉动风压干扰研究: 第1部分 迎风面效应

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振动与冲击 ›› 2009, Vol. 28 ›› Issue (12) : 188-192.

论文

两串列方柱局部脉动风压干扰研究: 第1部分迎风面效应

韩宁;顾明

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Interference Effects on Local Fluctuating Pressure of Two Square Tall Buildings in Tandem Arrangement: Part 1 windward side effects

Han Ning;Gu Ming

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摘要

对两个串列方柱在0°风向角下进行了其中之一的受扰方柱风压测量的风洞试验。根据试验结果，分析了施扰模型高度和位置变化对受扰方柱局部脉动风压的影响。结果显示，当施扰模型和受扰方柱等高时，随着间距比的增大，受扰方柱迎风面脉动风压增大，特殊的情况是在间距比小于4时，迎风面棱边和接近屋顶的部位脉动风压显著放大而中间部位其值则减小；当施扰模型位置固定时，随着高度比的增大，受扰方柱迎风面棱边和屋顶角部脉动风压相应增大，而迎风面中间部位则先增大后减小。

Abstract

Wind tunnel tests were conducted to study the wind pressure on principal square prism adjacent to another one in tandem arrangement at attack angle 0. The interference effects on local fluctuating pressure of the principal building were analysed with different heights and positions of the interfering building .The results show that fluctuating pressure on the windward side of interfering building increases with the increase of spacing ratio for buildings of the same height.In particular, the fluctuating pressure at the leading edge and on top corner of windward side increases significantly and the value on the middle part of the windward face decreases.In addition,for buildings of the fixed position, the fluctuating pressure at the leading edge and on top corner of windward side increases with the increase of height ratio,but the value first increases and then decreases on the middle part of the windward face.

导出引用

韩宁;顾明. 两串列方柱局部脉动风压干扰研究: 第1部分迎风面效应[J]. 振动与冲击, 2009, 28(12): 188-192

Han Ning;Gu Ming. Interference Effects on Local Fluctuating Pressure of Two Square Tall Buildings in Tandem Arrangement: Part 1 windward side effects[J]. Journal of Vibration and Shock, 2009, 28(12): 188-192