Research on the Damping Ratio Variation of Vehicle Bridge Interaction System Based on the Complex Mode Method
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Bibliographic Details
| Author(s): |
Zhiqiang Shang
(Department of Bridge Engineering, Tongji University, Shanghai, China)
Ye Xia (Department of Bridge Engineering, Tongji University, Shanghai, China) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022 | ||||
| Published in: | IABSE Congress Nanjing 2022 | ||||
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| Page(s): | 1313-1319 | ||||
| Total no. of pages: | 7 | ||||
| DOI: | 10.2749/nanjing.2022.1313 | ||||
| Abstract: |
Vehicle-bridge interaction (VBI) is a classical problem in bridge structural health monitoring (SHM), and there are many studies on this problem. However, most of the studies have focused on the frequency of VBI systems and neglected the damping. In this paper, the effects of vehicle parameters on the damping ratio of VBI systems are investigated. First, the equations of motion (EOM) of the VBI system are given. Then the damping ratios of the VBI system are solved by the complex mode method, and the results are verified by numerical simulation. Finally, the effects of vehicle parameters on the damping ratio of the bridge are analyzed. The results show that the speed, position, mass, frequency, and damping ratio of the vehicle will affect the damping ratio of the VBI system. When the vehicle frequency is close to the resonance condition, the change of damping ratio of the bridge is not negligible. |
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| Keywords: |
vehicle-bridge interaction Damping Ratio Complex Mode Method Vehicle parameters
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| Copyright: | © 2022 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | This creative work is copyrighted material and may not be used without explicit approval by the author and/or copyright owner. |
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