体育场悬挑屋盖结构风压特性研究  

CHARACTERISTICS OF WIND PRESSURES ON LARGESP AN CANTILEVERED ROOF OF A STADIUM

作　　者：张清文[1] 孙瑛[1] 武岳[1] 沈世钊[1] 

机构地区：[1]哈尔滨工业大学土木工程学院,哈尔滨150090

出　　处：《工业建筑》2007年第z1期638-641,共4页Industrial Construction

基　　金：国家自然科学基金重点项目(50338010);国家自然科学基金面上项目(50078018)资助

摘　　要：结合一大跨度悬挑屋盖结构的刚性模型风洞试验,研究不同屋盖倾角、不同风向及看台后部是否开敞等因素对屋面平均风压分布特性的影响。在总结上述分析结果的基础上,将屋盖风压近似简化为二维形式,对屋盖跨向风荷载进行分段描述,供抗风设计参考。Boundary layer wind tunnel tests were performed on a large-span cantilever roof model.The effects of different roof pitches,wind directions and sub-roof venting on the distribution of the mean wind loads are investigated.Based on the analysis results,the wind pressure on roof can been simplified into two-dimension form.In order to show the wind load simply and practicably,wind load is described in several segments along the spans direction.And the results might be used as reference for such structural design.

关 键 词：悬挑屋盖 风荷载特性 风洞试验 体型系数 

分 类 号：TU312.1[建筑科学—结构工程]