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

Korea Concrete Institute (한국콘크리트학회)
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A Comparative Study in the Fatigue Behavior Characteristics of R/C Beams Strengthened with Steel Plate or Carbon Fiber Strengthened with Steel Plate or Carbon Fiber Sheet

강판 및 CFS로 보강된 R/C보의 피로거동 특성 비교 연구

  • 심종성 (정회원, 한양대학교 토목·환경공학과) ;
  • 황의승 (정회원, 경희대학교 토목공학과) ;
  • 배인환 (한양대학교 토목공학과) ;
  • 장상훈 (한양대학교 토목공학과)
  • Published : 1997.04.01
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Abstract

The purpose of this study is to investigate the fatigue behavior of the reinforced concrete beams strengthened with steel plate and CFS(csrbon fiber sheet). In this study, fatigue loads of 60 to 80 percent of the ultimate strength are applied to the specimens. From the results of test the beams strengthened with steel plate show the flexural failure mode, while the specimens strengthened with CFS fail by separation between CFS and concrete surface. In case of the stress level of 70%, strength degradations of the beams with steel plate and CFS in normalized flexural rigidity at 5,000 cycles is 24 and is 24 and 28 percent respectively.

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