风雨荷载耦合作用下索桁架体系点支式玻璃幕墙的动力响应研究  

Dynamic Response Research on Cable Truss Point-supporting Glass Curtain Wall Under Coupling Wind and Rain Loads

作　　者：李宏男[1] 王奇[2] 

机构地区：[1]大连理工大学建设工程学部,辽宁大连116024 [2]沈阳建筑大学土木工程学院,辽宁沈阳110168

出　　处：《建筑科学与工程学报》2012年第4期7-12,共6页Journal of Architecture and Civil Engineering

基　　金：国家自然科学基金创新研究群体基金项目(51121005)

摘　　要：应用谐波叠加法模拟了脉动风速时程曲线,进而得到了脉动风荷载;通过马歇尔-帕尔默指数分布的雨滴谱及脉动风速得到了脉动雨荷载;利用ANSYS对索桁架体系点支式玻璃幕墙进行动力风荷载和雨荷载耦合作用下的时程分析,研究在风雨荷载共同作用下雨荷载对幕墙的影响。结果表明:雨荷载占总荷载最大比重随风速级别和降雨量的增加而增加;且雨荷载占总荷载最大比重为5.8%,极值雨情况下为12.4%。. The fluctuating wind load was got by using the harmonic wave superposition method to simulate the curve of fluctuating wind and the fluctuating rain load was obtained with the help of M-P rain together with the fluctuating wind velocity. Time history analysis of fluid-structure interaction from cable truss point supporting glass curtain walls was carried out under dynamic wind and rain loads by using ANSYS. The influence of rain load on curtain walls under wind and rain loads was studied. The results show that maximum proportion of rain load on total load increases with wind speed and rain loads. The maximum proportion is 5. 8~, while the proportion at the situation of extremum raining is 12.4~//00.

关 键 词：点支式玻璃幕墙 索桁架 脉动雨荷载 时程分析 风雨荷载 

分 类 号：TU311.3[建筑科学—结构工程]