单向张弦梁结构风振系数的研究  

Study on wind-induced vibration factor of the one-way beam string structures

作　　者：陈红媛[1] 房贞政[1] 

机构地区：[1]福州大学土木工程学院,福建福州350108

出　　处：《福州大学学报（自然科学版）》2009年第3期401-406,共6页Journal of Fuzhou University(Natural Science Edition)

基　　金：福建省自然科学基金资助项目(2007J0152)

摘　　要：针对大跨网架屋盖风致振动问题,采用时程分析方法,在有限元建模的基础上,采用改进的线性回归滤波器法进行脉动风荷载模拟,应用所得的数据,对广州国际会展中心单向空间张弦梁屋盖结构的位移风振系数和内力风振系数进行了研究,得到了一些张弦梁结构位移风振系数和内力风振系数的变化规律.Aimed at the wind - induced vibration of the long - span grid roof, based on FEM and the data obtained form the wind load simulation method through the linear filters to sequences of random numbers, the analysis of time - history is used to calculate the wind - induced vibration factor of vertical displacement and the wind - induced vibration factor of inner - force of beam string structure. Furthermore, the changing law of wind - induced vibration factors of the displacement and the inner - force of beam string structure are also obtained. Characteristics of the dynamic wind - load factor are drawn, which are used for directing the design of the beam string structure.

关 键 词：张弦梁结构 脉动风荷载 风振响应 风振系数 

分 类 号：TU311.3[建筑科学—结构工程]