李永贵¹，李秋胜^1,2

  （1 建筑安全与节能教育部重点实验室，湖南大学，长沙 410082； 2 香港城市大学建筑系，香港）

 

［摘要］某超高层建筑高228m，在建筑中部设置大型中庭空间用于建筑的自然通风和采光等。对该建筑进行了风洞模型试验，根据试验结果分析了中庭内风压分布的特点、相关性及概率特征，并对比了有无中庭情况下结构的整体风荷载。结果表明：中庭内风压分布均匀，相关性高，其概率特征可按高斯分布进行处理，中庭的存在对结构整体风荷载没有影响。根据试验结果，并结合规范的分析，给出了中庭内风压的局部体型系数和阵风系数。

［关键词］超高层建筑；大型中庭；风洞试验；风荷载

中图分类号：TU973.32，TU247.1文献标识码：A文章编号：1002-848X(2012)07-0128-06

 

Li Yonggui¹, Li Qiusheng^1,2

(1 Key Laboratory of Building Safety and Energy Efficiency of Hunan University, Changsha 410082, China; 2 City University of Hong Kong, Hong Kong, China)

 

Abstract: A super tall building with a height of 228m was designed, a large courtyard was set for natural ventilation and light. Based on results of the wind tunnel test, the wind pressure distribution characteristics, the correlations of wind pressures and the probabilistic characteristics of wind pressures in the courtyard were investigated in detail. Wind loads on the structure for the cases with and without the courtyard were compared. The results show that the pressure distributions in the courtyard are approximately uniform, the correlations of wind pressures in the courtyard are very high and their probabilistic characteristics are compatible with Gaussian distribution. Wind loads on the structure for the cases with and without the courtyard are almost identical. Finally, shape coefficient and gust factor for the design of cladding inside the courtyard were recommended.

Keywords: super tall building; large courtyard; wind tunnel test; wind load

*自然科学基金重大研究计划重点项目资助（90815030），“十一五”国家科技支撑计划项目资助（2006BAJ03B04-02）。

作者简介：李永贵，博士研究生，Email：lyg313@126.com。

 

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