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

Korea Concrete Institute (한국콘크리트학회)
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Shear Behavior of Reinforced Concrete Beams Strengthened with CFRP Strips

탄소섬유판(CFRP Strip)으로 보강된 철근콘크리트 부재의 전단거동

  • 임동환 (동서대학교 건설공학부 토목공학과) ;
  • 박성환 (동서대학교 대학원 토목공학과) ;
  • 김용일 (동서대학교 대학원 토목공학과)
  • Published : 2006.11.04
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Abstract

Carbon fiber reinforced polymer(CFRP) strips have superior mechanical and chemical properties in comparison with conventional materials. The purpose of this study is to investigate the mechanical shear behavior of concrete structures strengthened by CFRP strips A total of 15 concrete members were made and tested. Shear span to depth ratio(a/d) and the spacing of CFRP stripswere selected as major test variables. From test results, it isshown that shear strengthening with CFRP strips can increase the first shear strength and ultimate shear strength of concrete members significantly. And the brittle shear failure mode can be changed to a ductile failure mode by CFRP strips.

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