Evaluation of Seismic Performance and Proposing the Reinforcement Methods for the Bridge with Rocking Piers Penetrating the Railway Platform
|
|
|||||||||||
Bibliographic Details
| Author(s): |
Taiki Giga
(Hanshin Expressway Company Limited, Osaka, Japan)
Mitsuya Nagasawa (Hanshin Expressway Company Limited, Osaka, Japan) Masahiro Hattori (Hanshin Expressway Research Institute for Advanced Technology, Osaka, Japan) Naoya Sugiyama (IHI Infrastructure Systems Company Limited, Osaka, Japan) Kenji Tasaki (Nippon Engineering Consultants Company Limited, Tokyo, Japan) Ryoji Tokuhashi (Nippon Engineering Consultants Company Limited, Tokyo, Japan) Tatsuo Sasaki (Nippon Engineering Consultants Company Limited, Tokyo, Japan) Koji Oniki (Nippon Engineering Consultants Company Limited, Tokyo, Japan) |
||||
|---|---|---|---|---|---|
| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Challenges for Existing and Oncoming Structures, Prague, Czech Republic, 25-27 May 2022 | ||||
| Published in: | IABSE Symposium Prague 2022 | ||||
|
|||||
| Page(s): | 637-644 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/prague.2022.0637 | ||||
| Abstract: |
Among the notable damage to the expressway in the 2016 Kumamoto earthquake is the collapse of bridges with rocking piers. If the hinges of the rocking piers are damaged by an unexpected earthquake, the entire bridge system may collapse because bridges with rocking piers don’t have structural redundancy. In this paper, a bridge with a unique rocking pier penetrating a railway platform is focused on. We evaluated the seismic performance of the bridge, verified the collapse process, and proposed seismic reinforcement methods. Based on the results, it was confirmed that the displacements of the rocking pier exceeded the allowable values for an extreme earthquake. We proposed a measure to suppress the displacements and building a new pier to support the superstructure so that the collapse of the rocking pier would not lead to a bridge collapse. |
||||
| Keywords: |
dynamic analysis rocking pier pushover analysis seismic performance evaluation
|
||||
| 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. |
||||