大跨开合屋盖风压特性研究  

Wind pressure characteristics of a large span retractable roof

作　　者：孙芳锦 祝东涵 张尚祥 冯旭 张大明 SUN Fangjin;ZHU Donghan;ZHANG Shangxiang;FENG Xu;ZHANG Daming(College of Civil Engineering,Liaoning Technical University,123000 Fuxin,China;College of Civil Engineering and Architecture,Guilin University of Technology,541004 Guilin,China;MCC Group Shanghai Co.,LTD,201900 Shanghai,China;College of Information Science and Engineering,Guilin University of Technology,541006 Guilin,China;Guangxi Key Laboratory of Embedded Technology and Intelligence System,541004 Guilin,China)

机构地区：[1]辽宁工程技术大学土木工程学院,阜新123000 [2]桂林理工大学土木与建筑工程学院,桂林541004 [3]五冶集团上海有限公司,上海201900 [4]桂林理工大学信息科学与工程学院,桂林541006 [5]广西嵌入式技术与智能系统重点实验室,桂林541004

出　　处：《应用力学学报》2022年第5期989-996,共8页Chinese Journal of Applied Mechanics

基　　金：国家自然科学基金资助项目(No.52178468);广西自然科学基金联合资助培育项目(No.2019GXNSFAA245037);广西青年创新人才科研专项资助项目(桂科AD19245012);广西建筑新能源与节能重点实验室自主课题资助项目(桂科能19-J-21-14);广西岩土力学与工程重点实验室项目(桂科能19-Y-21-2);桂林理工大学科研启动基金资助项目(No.GUTQGJJ2019042;GUTQDJJ2019041)。

摘　　要：大跨度屋盖结构已经成为建筑结构的主要形式之一,开合屋盖结构是近年来刚兴起的一种结构形式,国内通过数值模拟对大跨度开合屋盖的研究还处在起步阶段。本研究建立了4种不同开合状态的屋盖模型,并分析了在不同开合状态、不同风向角、不同风速下屋盖表面的风压特性,并在屋盖完全开启的情况下对其进行分区进而计算分区体型系数,给出合理的分区建议值,为以后的实际工程提供有效的参考。研究表明:风向角对屋盖表面风压的分布影响较大,特别是30°和60°风向角对其风压系数分布的影响较为突出。屋盖顶部的开合状态对风压分布影响也较为明显,但对风压系数值影响不大。Large-span roof structure has become one of the main forms of building structure,and the retractable roof structure is a new structure form in recent years.The research on large span retractable roof by numerical simulation in China is still in its infancy stage.This paper establishes four roof models with different opening and closing states,analyzes the wind pressure characteristics of the roof surface under different opening and closing states,different wind angles,and different wind speeds,and conducts the analysis when the roof is fully opened.The partition then calculates the partition size coefficient and gives a reasonable suggested value for the partition,which provides an effective reference for future actual projects.The results show that the wind direction angle has a great influence on the distribution of wind pressure on the roof surface;especially the 30°and 60°wind direction angles have a prominent influence on the distribution of wind pressure coefficient.The opening and closing of the roof also significantly affects the wind pressure distribution,but has little influence on the wind pressure coefficient value.

关 键 词：大跨结构 开合屋盖 风压特性分布 数值模拟 体型系数 

分 类 号：TU399[建筑科学—结构工程]