A study on the damage development process of steel rigid frame bridge piers with rocking columns
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Bibliographic Details
| Author(s): |
Takahiro Fukushima
(Hanshin Expressway Company Limited, Osaka, Japan)
Hitoshi Yatsumoto (Hanshin Expressway Company Limited, Osaka, Japan) Kyoko Azumi (Hanshin Expressway Company Limited, Osaka, Japan) Koichi Sugioka (Hanshin Expressway Research Institute for Advanced Technology, Osaka, Japan) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Resilient technologies for sustainable infrastructure, Christchurch, New Zealand, 3-5 February 2021 | ||||
| Published in: | IABSE Congress Christchurch 2020 | ||||
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| Page(s): | 1175-1182 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/christchurch.2021.1175 | ||||
| Abstract: |
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. |
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| Keywords: |
pushover analysis Rocking column steel rigid frame pier seismic performance evaluation
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