Vibration analysis of a multi-span continuous bridge subject to complex traffic loading and vehicle dynamic interaction

被引:20
作者
Wang, Lingbo [1 ]
Kang, Xin [2 ]
Jiang, Peiwen [3 ]
机构
[1] Changan Univ, Key Lab Bridge & Tunnel Shaanxi Prov, Xian 710064, Shaanxi, Peoples R China
[2] Missouri Univ Sci & Technol, Dept Civil Environm & Architectural Engn, Rolla, MO 65409 USA
[3] Shaanxi Prov Transport Dept, Basic Construct Project Qual Supervis Stn, Xian 710075, Shaanxi, Peoples R China
关键词
bridge engineering; vehicle-bridge coupled vibrations; girder stiffness decay; MOVING MASS; BEAM;
D O I
10.1007/s12205-015-0358-4
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
A numerical analysis of the dynamic behavior of multi-span continuous bridges subject to traffic loadings and vehicle dynamic interactions is presented in this paper using the finite element program ANSYS. The proposed numerical model is capable of: (1) analyze "complex bridge systems", "complex vehicle models", and "complex traffic conditions"; (2) predict the vehicle-bridge coupled vibration response under various complex traffic loadings and vehicle dynamic conditions including the passage of multiple vehicles, vehicles changing lanes, vehicles subject to constant acceleration, and vehicles overtaking; and, (3) investigate the effect of girder stiffness decay on the coupled vibration of the vehicle-bridge system. Analytical and experimental results indicate that decay in the girder stiffness has a major effect on the coupled vibrations between the vehicles and bridge. The established method could be extended to analyze the vehicle-bridge coupled vibrations of many different types of bridges subject to complex vehicle loadings, which potentially could have a broad impact in the field of Bridge Engineering.
引用
收藏
页码:323 / 332
页数:10
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