Effect of Seismic Isolation Bearings on the Potential Pounding between Adjacent Girders for Long-Length Girder Bridge Systems
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Bibliographic Details
| Author(s): |
Xiaohu Chen
(T.Y.Lin International Engineering Consulting (China) Co., Ltd., Chongqing, China)
Yu Deng (T.Y.Lin International Engineering Consulting (China) Co., Ltd., Chongqing, China) Wei Guo (T.Y.Lin International Engineering Consulting (China) Co., Ltd., Chongqing, China) Xu Chen (International Research Institute of Disaster Science, Tohoku University, Sendai, Japan) |
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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): | 1791-1798 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/nanjing.2022.1791 | ||||
| Abstract: |
Research on seismic-isolated bridges concerning potential pounding between adjacent units remains limited to date, especially for long-length girder bridge systems consisting of several long- span girder bridges where the wave passage effect is of great significance. To investigate the effect of seismic isolation bearings on the potential pounding between adjacent girders considering the wave passage effect, a finite element model of a bridge system consisting of two box-girder bridges and one long-span hybrid truss-box girder bridge is developed. The results show that under uniform excitations the seismic isolation bearings can reduce the relative displacement at expansion joints and thus improve the performance against pounding. However, the wave passage effect can increase the deformation demands of the expansion joints and improve the probability of pounding even though seismic isolation bearings are used, especially for the low apparent wave velocities. |
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| Keywords: |
expansion joints pounding long-length girder bridge systems long-span girder bridges seismic isolation bearings wave passage effect
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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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