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高层建筑表面风压干扰效应研究

DOI: 10.13197/j.eeev.2015.06.94.chenfb.013, PP. 94-99

Keywords: 高层建筑,风洞实验,平均风压,脉动风压,干扰效应

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Abstract:

基于刚性模型测压实验,研究了不同干扰条件下高层建筑表面风压特性。结果表明(1)单体建筑表面迎风面风压系数均为正值,其余各面均为负值,且迎风面位于中上部的测点平均风压系数较大;(2)受到来流方向周边建筑的遮挡效应,迎风面转为负压;(3)周边建筑的干扰,使得表面脉动风压系数大于单体工况;(4)上风向周边建筑的干扰效应比下风向更为明显。获得的结果可以为此结构设计提供风荷载,同时也为其他建筑的抗风设计和风洞实验提供技术参考。

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