Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)

Korea Concrete Institute (한국콘크리트학회)
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Strengthening Effects of R.C. Beams using Externally attached CFRP Composites with Bond[ Details

CFRP로 보강된 RC보의 부착상세에 따른 보강효과

  • 박종섭 (한국건설기술연구원 토목연구부) ;
  • 박영환 (한국건설기술연구원 토목연구부) ;
  • 조정래 (한국건설기술연구원 토목연구부) ;
  • 유영준 (한국건설기술연구원 토목연구부) ;
  • 정우태 (한국건설기술연구원 토목연구부)
  • Published : 2003.05.01
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Abstract

Many studies have dealt with strengthening by epoxy-bonded CFRP(Carbon Fiber Reinforced Polymer) composites. However, the effects of various influencing factors have not been clarified on the behavior of strengthened RC beams. This study was performed to verify the effects of strengthening due to various bond details of externally attached CFRP Composites. In this study, major test parameters include the bond type and the anchor type. The deflections, failure load, strain of reinforcing bar, concrete and CFRP are measured at each loading step. The failure mode and debonding loads(ultimate loads) are analysed from these measured data. According to the test results, all specimens are failed by intermediate flexural crack induced interfacial debonding.

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