缆索承重桥梁空气静力失稳与动力失稳(颤振)的比较  

Comparison between Aerostatic and Aerodynamic Instability (Flutter) in Cable-supported Bridges

作　　者：程进[1] 肖汝诚[2] 项海帆[2] 

机构地区：[1]清华大学土木工程系,北京100084 [2]同济大学桥梁工程系,上海200092

出　　处：《桥梁建设》2002年第3期7-9,共3页Bridge Construction

基　　金：国家自然科学基金九五重大项目资助 (5 9895 410 )

摘　　要：通过对缆索承重桥梁空气静力失稳和动力失稳 (颤振 )进行的比较分析 ,指明了在何种条件下静力失稳会提前于动力失稳 (颤振 )前发生 ,为今后进行桥梁的抗风设计提供参考。The comparison analysis between aerostatic instability and aerodynamic instability (flutter) in cable supported bridges was presented. It was indicated that under what conditions the aerostatic instability takes place before aerodynamic instability, the analysis has reference value for wind resistant design in the future.

关 键 词：缆索承重桥梁 静力失稳 动力失稳 悬索桥 斜拉桥 空气动力学 稳定分析 颤振 抗风设计 比较分析 

分 类 号：U448.25[建筑科学—桥梁与隧道工程] U448.27[交通运输工程—道路与铁道工程]