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A study on the damage development process of steel rigid frame bridge piers with rocking columns

A study on the damage development process of steel rigid frame bridge piers with rocking columns
Auteur(s): , , ,
Présenté pendant IABSE Congress: Resilient technologies for sustainable infrastructure, Christchurch, New Zealand, 3-5 February 2021, publié dans , pp. 1175-1182
DOI: 10.2749/christchurch.2021.1175
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In the Hanshin Expressway, seismic retrofitting measures have been carried out since before, and the measures have also been carried out without exception on bridges with rocking piers. However, so...
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Détails bibliographiques

Auteur(s): (Hanshin Expressway Company Limited, Osaka, Japan)
(Hanshin Expressway Company Limited, Osaka, Japan)
(Hanshin Expressway Company Limited, Osaka, Japan)
(Hanshin Expressway Research Institute for Advanced Technology, Osaka, Japan)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Congress: Resilient technologies for sustainable infrastructure, Christchurch, New Zealand, 3-5 February 2021
Publié dans:
Page(s): 1175-1182 Nombre total de pages (du PDF): 8
Page(s): 1175-1182
Nombre total de pages (du PDF): 8
DOI: 10.2749/christchurch.2021.1175
Abstrait:

In the Hanshin Expressway, seismic retrofitting measures have been carried out since before, and the measures have also been carried out without exception on bridges with rocking piers. However, some bridge of rocking piers were collapsed in 2016 Kumamoto earthquake. Kumamoto earthquake revealed the instability and fragility of rocking piers. In this study, the damage development process of steel rigid frame piers with rocking columns was evaluated by pushover analysis. As a result of the study, it was verified that in the examination target bridge pier, the rocking column was not damaged ahead of other components. From these results, the target bridge pier has sufficient seismic performance and it has extreme low probability to occur severe damage that leads to collapse.