Finite‐element analysis of laminated rubber bearing of building frame under seismic excitation |
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| Authors: | Makoto Ohsaki Tomoshi Miyamura Masayuki Kohiyama Takuzo Yamashita Masashi Yamamoto Naohiro Nakamura |
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| Affiliation: | 1. Department of Architecture, Hiroshima University, Higashihiroshima, Japan;2. Department of Computer Science, Nihon University, Koriyama, Japan;3. Hyogo Earthquake Engineering Research Center, National Research Institute for Earth Science and Disaster Prevention, Miki, Japan;4. Department of System Design Engineering, Keio University, Yokohama, Japan;5. Takenaka Research & Development Institute, Inzai, Japan |
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| Abstract: | Finite element analysis is carried out for a building frame supported by laminated rubber bearings to simultaneously investigate global displacement and local stress responses under seismic excitation. The frame members and the rubber bearings are discretized into hexahedral solid elements with more than 3 million degrees of freedom. The material property of rubber is represented by the Ogden model, and the frame is assumed to remain in elastic range. It is shown that the time histories of non‐uniform stress distribution and rocking behavior of the rubber bearings under a frame subjected to seismic excitation can be successfully evaluated, and detailed responses of base and frame can be evaluated through large‐scale finite element analysis. Copyright © 2015 John Wiley & Sons, Ltd. |
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| Keywords: | natural rubber bearing finite element analysis base isolation seismic response hyper‐elasticity parallel computing |
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