大跨索网结构风振系数分析  

Analyses for Wind-induced Coefficients of Long-span Cable-net Structures

作　　者：魏德敏[1] 李杰超[2,3] 

机构地区：[1]华南理工大学,广东广州510640 [2]华南理工大学土木工程系,广东广州510640 [3]广东外语外贸大学,广东广州510420

出　　处：《华中科技大学学报（城市科学版）》2008年第3期17-19,23,共4页Journal of Huazhong University of Science and Technology

基　　金：广东省自然科学基金(020940)

摘　　要：大跨索网结构广泛应用于工程实际,该结构的风振系数是结构抗风设计的重要参数。本文以双曲抛物面椭圆平面索网结构为研究对象,通过三维有限元风振响应时程分析,得到了索网结构在不同矢跨比、阻尼比下的风振响应特点和风振系数的变化规律,由此给出一些有意义的结果和结论。The long-span cable nets structures are being widely used in practical engineering, and the wind-induced coefficient is important for the design of the structures. With the 3-D FEM, the wind vibration response of the oval-plane cable nets structure is analyzed in this paper. The characteristics of the wind vibration response and the change regularities of the wind-induced coefficients for different rise-to-span ratios and damp ratios are obtained. Then some useful results and conclusions are given.

关 键 词：大跨索网结构 风振系数 有限元分析 风振响应 

分 类 号：TU352.2[建筑科学—结构工程] TU311.3