深圳机场T3航站楼风压特性研究

周晅毅1，顾 明1，臧健2，全 涌1，晏克勤1(1 同济大学土木工程防灾国家重点实验室, 上海 200092; 2 深圳市机场(集团)有限公司, 深圳 518128)

［摘要］为了给结构(含围护结构)设计提供设计依据，介绍了超大跨度屋盖结构——深圳机场T3航站楼的模型风洞试验和数值模拟的主要结果。给出了屋面在典型工况下的分块体型系数(对应法向风压)和切向风荷载体型系数等值线，清楚地显示了屋面的风压分布特征，结果表明切向风荷载相对法向风荷载较小。同时考虑到作用在围护结构上脉动风压的相关性对极值风压的折减，分析了围护结构设计风荷载的折减因子。

［关键词］   风洞试验；大跨度屋盖；风压分布；数值模拟；折减因子

中图分类号：TU312.1, TU391文献标识码：A文章编号：1002-848X(2011)01-0122-04

Research on wind pressure of Terminal 3 in Shenzhen International Airport

Zhou Xuanyi1, Gu Ming1, Zang Jian2, Quan Yong1, Yan Keqin1

(1 State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China;

2 Shenzhen Airport Group Ltd., Shenzhen 518128, China)

Abstract:Testing conditions and main results of wind tunnel test and numerical simulation on Terminal 3 in Shenzhen International Airport were introduced. The block shape coefficients for wind forces acting normal to the building surface and the contours of shape coefficients for wind forces acting tangent to the building surface (friction forces) were given for the typical condition, which showed clearly the characteristics of the wind pressure distribution on the large-span roof surface. It is found that the wind forces acting tangent to the building surface are smaller than that of acting normal to the building surface. Meanwhile, considering the wind loading effects at different locations on the same cladding structure will offset each other, the reduction factors taking into the effects of relevant properties for individual measuring points were  analyzed.

Keywords:wind tunnel test; large-span roof; wind pressure distribution; numerical simulation; reduction factor

*科技部国家重点实验室基金（SLDRCE10-B-04），国家自然科学基金创新研究群体科学基金(50621062)。

作者简介：周晅毅，博士，副研究员，Email:zhouxytj@tongji.edu.cn。

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