• Title/Summary/Keyword: Crack Arrest

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Shear Mechanism of Steel-Fiber Reinforced High Strength Concrete Beams without Sheat Confinement (전단 보강이 없는 강섬유보강 고강도 철근 콘크리트보의 전단 거동에 관한 연구)

  • 오정근;이광수;신성우
    • Magazine of the Korea Concrete Institute
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    • v.3 no.3
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    • pp.141-148
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    • 1991
  • Investigations on the behavior of steel fiber reinforced high strength concrete beams subjected to predominant shear are accomplished to determine their diagonal shear strength including ultimate shear strength. The par¬ameters varied were the fiber volume fraction(Vf) of the steel-fibers and shear span to depth ratio(a/d). The test result show that diagonal shear strength and ultimate shear strength are increased significantly due to crack arrest mechamsm. Predictive equations are suggested for evaluating the diagonal cracking strength and ultimate shear strength of the fiber reinforced high strength concrete beams.