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Evaluation of Seismic Performance and Proposing the Reinforcement Methods for the Bridge with Rocking Piers Penetrating the Railway Platform

Evaluation of Seismic Performance and Proposing the Reinforcement Methods for the Bridge with Rocking Piers Penetrating the Railway Platform
Auteur(s): , , , ,
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Présenté pendant IABSE Symposium: Challenges for Existing and Oncoming Structures, Prague, Czech Republic, 25-27 May 2022, publié dans , pp. 637-644
DOI: 10.2749/prague.2022.0637
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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,...
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Détails bibliographiques

Auteur(s): (Hanshin Expressway Company Limited, Osaka, Japan)
(Hanshin Expressway Company Limited, Osaka, Japan)
(Hanshin Expressway Research Institute for Advanced Technology, Osaka, Japan)
(IHI Infrastructure Systems Company Limited, Osaka, Japan)
(Nippon Engineering Consultants Company Limited, Tokyo, Japan)
(Nippon Engineering Consultants Company Limited, Tokyo, Japan)
(Nippon Engineering Consultants Company Limited, Tokyo, Japan)
(Nippon Engineering Consultants Company Limited, Tokyo, Japan)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Symposium: Challenges for Existing and Oncoming Structures, Prague, Czech Republic, 25-27 May 2022
Publié dans:
Page(s): 637-644 Nombre total de pages (du PDF): 8
Page(s): 637-644
Nombre total de pages (du PDF): 8
DOI: 10.2749/prague.2022.0637
Abstrait:

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.
Copyright: © 2022 International Association for Bridge and Structural Engineering (IABSE)
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