Seismic damage evaluation of highway viaducts equipped with FPS bearings subjected to level II earthquake ground motions
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- Gimenez Javier Lopez
- Graduate School of Eng., Hokkaido University
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- Hayashikawa Toshiro
- Faculty of Eng., Hokkaido University
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- Matsumoto Takashi
- Faculty of Eng., Hokkaido University
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- He Xingwen
- Faculty of Eng., Hokkaido University
Abstract
During the last decades, the need for safer bridges has led to high level aseismatic design of bridges including the use of base isolation bearings. This study numerically evaluates the effectiveness of a promising base isolation bearing, the Friction Pendulum System (FPS), used to improve the seismic performance of highway bridges under strong earthquakes. Nonlinear dynamic analysis and parametric studies are conducted with three-dimensional viaduct models subjected to near-fault earthquakes. The results show that FPS supports can effectively reduce the seismic response at the piers of both straight and curved viaducts. However, curved viaducts subjected to extreme earthquakes may suffer from damage at the expansion joint. In such cases, the seismic performance can be improved by installing unseating prevention cable restrainers as well as changing the bearing arrangement of FPS.
Journal
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- Journal of Structural Engineering, A
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Journal of Structural Engineering, A 61A (0), 344-355, 2015
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390282680259874176
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- NII Article ID
- 130005439092
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- ISSN
- 1881820X
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed