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- Title
Non-linear buffeting response analysis of long-span suspension bridges with central buckle.
- Authors
Wang Hao; Li Aiqun; Zhao Gengwen; Li Jian
- Abstract
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.
- Subjects
CHINA; BUFFETING (Aerodynamics); SUSPENSION bridges; BRIDGES; NONLINEAR statistical models; FLUCTUATIONS (Physics); ANSYS (Computer system); FREQUENCIES of oscillating systems; LONG-span bridges
- Publication
Earthquake Engineering & Engineering Vibration, 2010, Vol 9, Issue 2, p259
- ISSN
1671-3664
- Publication type
Article
- DOI
10.1007/s11803-010-0011-7