大涡模拟下两种张拉膜结构的风压特性  

Wind Pressure Characteristics of Two Kinds of Tensioned Membrane Structures Under Large Eddy Simulation

作　　者：孙芳锦 张双磊 尚俊晨 卢琛 张大明 SUN Fangjin;ZHANG Shuanglei;SHANG Junchen;LU Chen;ZHANG Daming(School of Civil and Architectural Engineering,Guilin University of technology,Guilin 541004,China;School of Civil Engineering,Liaoning University of engineering and technology,Fuxin 123000,China;College of Information Science and Engineering,Guilin University of Technology,Guilin 541006,China;Guangxi Key Laboratory of Embedded Technology and Intelligent System,Guilin,541006,China)

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

出　　处：《洛阳理工学院学报（自然科学版）》2023年第3期11-16,51,共7页Journal of Luoyang Institute of Science and Technology：Natural Science Edition

基　　金：国家自然科学基金项目(52178468)。

摘　　要：以ANSYS WORKBENCH19.0为模拟平台,采用高精度大涡模拟(LES)对鞍型和连续拱形两种大跨度膜结构在10 m/s、15 m/s、20 m/s三种风速及0°、45°两种风向角的竖向平均风荷载作用下进行数值模拟,得到两种模型在竖向风荷载作用下膜面的风压作用规律。膜结构在竖向风荷载作用下的风振响应影响非常明显,与在水平风向角下的风振响应相当。Taking ANSYS WORKBENCH19.0 as the simulation platform,the large eddy simulation(LES)with higher accuracy is adopted to numerically simulate the vertical average wind load action of the two large-span membrane structures of saddle type and continuous arch at three wind speeds of 10m/s,15m/s and 20m/s respectively and wind angles of 0°and 45°.The wind pressure action law of the membrane surface under vertical wind load of the two models is obtained.The results show that the influence of the wind vibration response of the membrane structure under vertical wind load is very obvious,equivalent to the response of horizontal wind vibration.

关 键 词：大跨度膜结构 风压系数 大涡模拟 风压分布特性 

分 类 号：TU317[建筑科学—结构工程]