2017 Fiscal Year Final Research Report
SEISMIC FAILURE ALLOCATION BETWEEN ISOLATORS AND REINFORCED CONCRETE BRIDGE COLUMNS TO ENSURE FAIL-SAFE FUNCTION
| Project/Area Number |
26420452
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | 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 | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Keywords | 免震支承－RC橋脚系 / 地震動 / 経年劣化 / 耐力比 / 非線形応答 / 損傷配分 / 安全性 / 復旧性 |
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| Outline of Final Research Achievements |
Performance of rubber bearings can be deteriorated, and cracks and rupture of rubber bearings occurred during the past seismic events. A fundamental research was conducted to realize isolated bridges which can be in operation immediately even after large earthquakes. It was shown that rupture of isolators can be prevented and that isolated bridges with high seismic safety and high reparability can be realized by ensuring the appropriate capacity ratio between isolators and bridge columns considering deterioration of isolators.
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| Free Research Field |
地震工学
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