2011 Fiscal Year Final Research Report
Study on Debonding Detection for Concrete Retrofitted Sheet Using Optical Fiber Sensor
| Project/Area Number |
21681023
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Social systems engineering/Safety system
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| Research Institution | 鹿島建設株式会社技術研究所 (2011)
Kajima Technical Research Institute, Kajima Corporation (2009-2010) |
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Principal Investigator |
IMAI Michio 鹿島建設株式会社技術研究所, 先端メカトロニクスグループ, 主任研究員 (20399702)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 安全システム |
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| Research Abstract |
To monitor retrofitted sheet on the surface of aging concrete structure, debonding detection for the sheet is studied using advanced optical fiber strain sensor, which is able to measure strain distribution along the whole sensing fiber. At the debonded region, because no stress is transferred from the host structure to the retrofitted sheet, strain on the sheet remains constant. In this study, installation of the sensing fiber into the sheet is developed and experimentally validated to detect debonding using optical fiber strain sensor. Additionally, the measured interfacial stress-strain model is examined.
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