훅트강섬유보강 고강 콘크리트 보의 휨전단 거동

Flexural-Shear Behavior of Steel Fiber Reinforced High Strength Concrete Beams

  • 한형섭 (과학재단 인턴연구원) ;
  • 박인철 (관동대학교 건축공학과) ;
  • 김명성 (관동대학교 건축공하과) ;
  • 김윤일 (관동대학교 건축공학과)
  • 발행 : 1999.04.01

초록

Experimental study was conducted to investigate the flexural-shear behavior of hooked steel fiber reinforced high strength concrete (SFRHC) beams. Twenty beams with shear span-depth ratio of 1.45 were tested, of which variables were the contents of steel fiber with aspect ratio of 60, tension reinforcement ratio and concrete compressive of 60MPa and 80MPa. Test results has shown that shear failure of the beams were changed into flexural-shear failure or flexural failure according to increasing steel fiber content, that SFRHC with slump of 15cm over and fiber volume ratio of 1.5% was possible in practice, and that proper volume ratio of steel fiber was 1.5%.

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