A Hysteretic Model of Compressive and Tensile Behavior for Laminated Rubber Bearings
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Bibliographic Details
| Author(s): |
Seita Komori
(University of Yamanashi, Yamanashi, JAPAN)
Junji Yoshida (University of Yamanashi, Yamanashi, JAPAN) Hanae Kurino (University of Yamanashi, Yamanashi, JAPAN) Kouichi Takeya (Tokyo Institute of Technology, Tokyo, JAPAN) |
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| 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 | ||||
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| Page(s): | 1567-1573 | ||||
| Total no. of pages: | 7 | ||||
| DOI: | 10.2749/prague.2022.1567 | ||||
| Abstract: |
In Japan, Laminated rubber bearings have widely been used in road bridges after Kobe earthquake (1995). In Great East Japan earthquake (2011) and Kumamoto earthquake (2016), some damages were found in the bearings and they might be caused by tensile deformation. In this research, compressive and tensile hysteretic models of the bearings are developed. At first, we conduct loading experiments of single rubber layer, in order to grasp compressive/tensile behavior. Then, based on experimental results, we develop a tensile hysteretic model which combines an elasto- plastic unit and a damage unit in parallel. Finally, a compressive hysteretic model is constructed by adding a nonlinear elastic unit to the tensile hysteretic model in parallel. As a result, the proposed model is found to accurately reproduce the experimental results. |
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| Keywords: |
laminated rubber bearing vertical force-displacement relation hysteretic model elasto- plastic unit damage unit nonlinear elastic unit
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| 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. |
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