| Project/Area Number |
20560457
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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 | Railway Technical Research Institute |
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Principal Investigator |
OYADO Michiaki Railway Technical Research Institute, 構造物技術研究部, 主任研究員 (10425910)
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| Co-Investigator(Kenkyū-buntansha) |
KANAKUBO Toshiyuki 筑波大学, システム情報工学研究科, 准教授 (90261784)
YASOJIMA Akira 筑波大学, システム情報工学研究科, 助教 (80437574)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | コンクリート構造 / 腐食 / 付着 / 鉄筋コンクリート / 異形鉄筋 / 割裂 / 質量減少率 / ひび割れ |
|---|
| Research Abstract |
The experimental study considering the effect of deterioration on the relationship between bond stress and slippage was carried out in this study, in order to clarify the bond splitting mechanism of corroded reinforced concrete member. From the test results, the conditions of internal cracks are different between cases of cover concrete. It is clarified that the reduction rate of maximum bond stress due to corrosion will become larger when the thickness of cover concrete is large, and will become smaller when the lateral confinement is applied.
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