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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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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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 / 損傷モード / 地震応答 / 耐力格差 / 劣化 |
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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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Report
(5 results)
Research Products
(26 results)
