Non-linear buffeting response analysis of long-span suspension bridges with central buckle

被引：18
|
作者：
Wang Hao [1 ,2 ]
Li Aiqun [1 ]
Zhao Gengwen [1 ]
Li Jian [2 ]
机构：
[1] Southeast Univ, Coll Civil Engn, Nanjing, Peoples R China
[2] Univ Illinois, Urbana, IL 61801 USA
来源：
EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION | 2010年 / 9卷 / 02期
基金：
中国国家自然科学基金;
关键词：
suspension bridge; buffeting response; central buckle; nonlinear time history analysis; ANSYS; CABLE-STAYED BRIDGE; FLUTTER DERIVATIVES; FIELD; VIBRATION; IDENTIFICATION; SIMULATION;
D O I：
10.1007/s11803-010-0011-7
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The rigid central buckle employed in the Runyang Suspension Bridge (RSB) was the first time it was used in a suspension bridge in China. By using a spectral representation method and FFT technique combined with measured data, a 3D fluctuating wind field considering the tower wind effect is simulated. A novel FE model for buffeting analysis is then presented, in which a specific user-defined Matrix27 element in ANSYS is employed to simulate the aeroelastic forces and its stiffness or damping matrices are parameterized by wind velocity and vibration frequency. A nonlinear time history analysis is carried out to study the influence of the rigid central buckle on the wind-induced buffeting response of a long-span suspension bridge. The results can be used as a reference for wind resistance design of long-span suspension bridges with a rigid central buckle in the future.
引用
收藏
页码：259 / 270
页数：12
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