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A Hysteretic Model of Compressive and Tensile Behavior for Laminated Rubber Bearings

A Hysteretic Model of Compressive and Tensile Behavior for Laminated Rubber Bearings
Autor(en): , , ,
Beitrag für IABSE Symposium: Challenges for Existing and Oncoming Structures, Prague, Czech Republic, 25-27 May 2022, veröffentlicht in , S. 1567-1573
DOI: 10.2749/prague.2022.1567
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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...
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Bibliografische Angaben

Autor(en): (University of Yamanashi, Yamanashi, JAPAN)
(University of Yamanashi, Yamanashi, JAPAN)
(University of Yamanashi, Yamanashi, JAPAN)
(Tokyo Institute of Technology, Tokyo, JAPAN)
Medium: Tagungsbeitrag
Sprache(n): Englisch
Tagung: IABSE Symposium: Challenges for Existing and Oncoming Structures, Prague, Czech Republic, 25-27 May 2022
Veröffentlicht in:
Seite(n): 1567-1573 Anzahl der Seiten (im PDF): 7
Seite(n): 1567-1573
Anzahl der Seiten (im PDF): 7
DOI: 10.2749/prague.2022.1567
Abstrakt:

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.

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