2017 Fiscal Year Final Research Report
Improvement of seismic response of bridges focused on uncertainty / discontinuity in structural system
| Project/Area Number |
26289145
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
秋山 充良 早稲田大学, 理工学術院, 教授 (00302191)
五十嵐 晃 京都大学, 防災研究所, 教授 (80263101)
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Keywords | 不連続境界 / 不確定 / 地震応答 / 耐震構造 |
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| Outline of Final Research Achievements |
Due to 2011 Great East Japan Earthquake and 2016 Kumamoto Earthquake, many bridges suffered serious damages at structural boundaries and connections. In order to evaluate seismic response of bridges focused on discontinuity in structural system, shake table tests of seismic isolators in 2D were conducted to make rational numerical model, and improvement of design of collapse prevention device in bridge was proposed. And in order to evaluate seismic response of bridge focused on uncertainty, dynamic response of multi-degree-of-freedom systems was evaluated by changing the predominant frequency component of narrow band input for seismic action with high uncertainty by random vibration theory. Furthermore, new techniques were proposed to improve the post-peak behavior of reinforced concrete structure.
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| Free Research Field |
耐震工学
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