Journal of Korean Association for Spatial Structures (한국공간구조학회논문집)

Korean Association for Spatial Structures (한국공간구조학회)
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An Experimental Study on Flexural Performance of RC Beams Reinforced With Hybrid Prefabricated Retrofit Method

하이브리드 조립형 보강 기법을 적용한 철근콘크리트 보의 휨 성능 평가에 관한 실험적 연구

  • 문상필 (경희대학교 건축공학과,) ;
  • 이성호 (경희대학교 재정운영본부) ;
  • 이영학 (경희대학교 건축공학과,) ;
  • 김민숙 (경희대학교 건축공학과,)
  • Received : 2020.10.06
  • Accepted : 2020.11.05
  • Published : 2020.12.15
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Abstract

In this paper, the hybrid prefabricated retrofit method is suggested and examined. Six specimens were manufactured in order to evaluate their flexural performance of RC beams. Test parameters include the added beam depth, the thickness of bottom plate, the number of the steel plate with openings. The effects of these parameters on the flexural performance of reinforced concrete beams were examined. The load-deflection behavior and modes of cracks are presented from the test results. At the test result, the flexural capacity and the ductility of the hybrid prefabricated retrofit method was increased satbly. Also, comparing the flexural performance of RC beam and retrofitted RC beams, it was increased that the flexural strength is about 3.3 times, the ductility is about 2.55 times, and energy dissipation capacity is about 7.34 times.

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References

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