冯永伟¹，吴小平¹，杨学林¹，许卫峰²，邹良浩³

（1 浙江省建筑设计研究院，杭州 310006； 2 浙江恒兴置业有限公司，杭州 310053；3 武汉大学土木建筑工程学院，武汉 430072）

 

［摘要］当超高层建筑的高度和间距都比较接近的时候，相互的干扰效应对结构的表面风荷载与结构的风致响应都会产生较大影响。基于刚性模型表面测压风洞试验，得到了双塔楼超高层建筑表面各测点的风压时程。在此基础上，通过数据处理，得到结构的三维动力风荷载模型，进而分别采用频域法进行结构动力响应分析。最后，通过分析结构表面风荷载与风致响应，研究了塔楼之间的干扰对结构风荷载的影响以及对结构风致响应的影响，结果表明：当双塔连线与来流方向平行时，三维风荷载和风致响应都会明显增大，干扰效应影响十分明显。

［关键词］风洞试验;干扰效应;双塔楼结构;风荷载

中图分类号：TU 973-213文献标识码：A文章编号：1002-848X(2012)08-0065-04

 

Feng Yongwei¹, Wu Xiaoping¹, Yang Xuelin¹, Xu Weifeng², Zou Lianghao³

（1 Zhejiang Province Institute of Architecrural Design and Research, Hangzhou 310006, China; 2 Zhejiang Hengxing Trading Company Limited, Hangzhou 310053, China; 3 School of CML Engineering, Wuhan University, Wuhan 430072, China）

 

Abstract: The interference effects make a great influence on the wind pressure on the surface and the wind-induced responses of super-high buildings, when the distance between them is short and the heights of them are almost the same. Based on the wind tunnel test of rigid model, the time series of wind pressure on the test points on the surface of the-twin-tower super-high building were obtained, and then, the 3-D dynamic wind load model of the building was established by data process procedure. The wind-induced dynamic responses are evaluated based on frequency domain method. The interference effects on the wind loads and wind-induced responses are analyzed. The result shows that when twin-tower is parallel to the flow, wind loads and wind induced responses will increase, and the interference effects are very obvious.

Keywords: wind tunnel test; interference effects; twintower building; wind load

作者简介：冯永伟，高级工程师，一级注册结构工程师，Email: fyw315@yahoo.com.cn。

 

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