(1 大连理工大学海岸和近海工程国家重点实验室,大连 116023; 2 同济大学土木工程防灾国家重点实验室,上海 200092)
［摘要］对某一具有代表性的大型体育场看台挑篷刚性模型进行了表面测压风洞试验，详细介绍了试验所采用的主要技术参数和基本的数据处理方法，对比研究了在有、无临近建筑物干扰情况下的体育场挑篷表面风压分布的等值线图和结构典型测点在不同风向角下的风压变化规律。结果表明，邻近建筑对所测建筑的风荷载有一定的气动干扰影响，相关结论为结构的抗风设计提供了可靠的依据。
［关键词］体育场挑篷；风洞试验；干扰效应；风压系数
Experimental study on wind pressure distribution characteristics and interference effects of a stadium covering
Li Hongnan1， Yi Tinghua1,2(1 State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China; 2 State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China)
Abstract:A wind tunnel test of a stadium model is carried out to investigate the wind pressure distribution on the stadium covering. Firstly, the technical parameters used in the test and the basic data processing methods are introduced in detail. Then, the contour curves of mean wind pressures for the most unfavorable conditions, which show clearly the characteristics of wind pressure distributions on the roof of the structure, and the variations of wind pressure for typical measuring points under different wind angles, are given to analyze the effect  with and without the interference of the surrounding building. The results show that the interfering building may cause certain shielding effects that cannot be ignored by decreasing the mean wind load on the principal building. The results can be used as reference for the wind resistance design of the building.
Keywords:stadium covering; wind tunnel test; interference effect; wind pressure coefficients
高等学校学科创新引智计划资助项目(B08014)；教育部长江学者和创新团队发展计划(IRT0518)；住房和城乡建设部科学技术项目(2008-K2-37)；同济大学土木工程防灾国家重点实验室开放课题基金(2007-C-02)。
作者简介：李宏男,博士，长江学者特聘教授,博导,Email: hnli@dlut.edu.cn。
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