2012 Fiscal Year Final Research Report
Development of Advanced Prestressing System by Externally-Bonded CFRP Strips and Repair Method of Fatigue Cracks
| Project/Area Number |
22560484
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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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 | Tokyo Metropolitan University |
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Principal Investigator |
NAKAMURA Hitoshi 首都大学東京, 都市環境科学研究科, 准教授 (70264596)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 構造工学・地震工学 / 構造・機能材料 / 維持管理工学 / 維持管理工学補修・補強 |
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| Research Abstract |
As a repair method of fatigue cracks, which are often initiated in existing steel bridges, an advanced prestressing system by externally-bonded CFRP (Carbon Fiber Reinforced Plastic) strips. The result of fatigue tests shows that the fatigue life after repair is drastically improved by using the developed system. Moreover, the methods of fatigue life prediction and the durability enhancement in the fatigue crack repair using externally-bonded CFRP strips were proposed.
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