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An Experimental Study on the Shear Behavior of Reinforced Concrete Beams Strengthened with Slit Type Steel Plates  

Lee, Choon-Ho (서울시립대학교 건축학부 건축공학)
Shim, Jong-Seok (동서울대학 건축과)
Kwon, Ki-Hyuk (서울시립대학교 건축학부 건축공학)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.8, no.4, 2008 , pp. 1-8 More about this Journal
Abstract
RC beam of existing structures often encounter shear problems for various reasons. The shear failure of RC beam is sudden and brittle. Strengthening technique jacketing with external bonding of steel plates(or CFRP and CFS) with epoxy is many use to in practice. This study presents test results on strengthening shear deficient RC beams by external bonding of slit type steel plates. Test parameters are width, interval, length, thickness and angle of slit in steel plates. The purpose was to evaluate the reinforcing effects, failure modes and shear capacities for RC beams of strengthened with various slit type steel plates. The test result confirmed that all slit steel plates improved the stiffness and strength of the specimens significantly. Failure modes of SV series and SD series showed shear fractures and flexure fractures at ultimate state respectively. SD series were ductile rather than SV series.
Keywords
Strengthening shear; Slit; Cut-off delamination; Strength; Ductile fracture;
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1 백승민 외 2명 (2004) 구조적 손상을 받은 RC보의 전단보강 효 과에 관한 실험적연구. 대한건축학회논문집, 대한건축학회
2 Hiroshi Mutsuyoshi et al. (2000) Shear strengthening concrete beams using steel plates bonded on beam web. Construction and Building Materials, Vol. 14
3 심종성 외 1명 (1998) FRP로 보강된 RC보의 전단보강효과 비 교연구. 한국콘크리트학회논문집, 한국콘크리트학회, 제10권, 제4호
4 Sinan Altin et al. (2005) Improving shear capacity of existing RC beams using external bonding of steel plates. Engineering Structures, Vol. 27
5 정헌수 외 3명 (1997) 보강재를 사용한 철근콘크리트 보의 휨.전 단내력에 관한 실험적연구. 한국구조물진단학회논문집, 한국구 조물진단학회, 제1권, 제1호
6 Bimal B. Adhikary et al. (2006) Shear strengthening reinforced concrete beams using various techniques. Construction and Building Materials. Vol. 20
7 P. S. Baglin et al. (2001) External steel plate systems for shear strengthening of reinforced concrete beams. Engineering Structures, Vol. 23
8 조재열 외 2명 (2002) 강판과 콘크리트 접착계면의 파괴거동 및 박리특성. 한국콘크리트학회논문집, 한국콘크리트학회
9 이광명 외 3명 (2001) 강판으로 보강된 RC보의 에폭시-콘크리트 계면의 부착특성. 한국콘크리트학회논문집, 한국콘크리트학회