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

Korea Concrete Institute (한국콘크리트학회)
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The Effect of The Flexural Strength Ratio on Beam-Column Joint with High and Low Strength Concrete

고강도와 보통 강도 콘크리트를 사용한 보-기둥 접합부의 휨강성화에 따른 이력거동

  • 신성우 (한양대 건축과) ;
  • 안종문 (한양대 대학원 건축공학과) ;
  • 문정일 (한양대 대학원 건축공학과) ;
  • 김대근 (한양대 대학원 건축공학과) ;
  • 이광수 (한양대 대학원 건축공학과) ;
  • 박희민 ((주)삼성종합건설) ;
  • 이승훈 ((주)삼성종합건설 기술연구소) ;
  • 오정근 ((주)삼성종합건설 기술연구소)
  • Published : 1992.10.01
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Abstract

ACI318-89 Recommended that when the specified compressive strength of concrete in a column is greater than1.4 times that specified for a floor system, top surface of the column concrete shall extend 2ft(600mm)into the slab from the face of column to avoid unexpected brittle failure. The major variables are extension distance, flexural strength ratio(Mr), and shear reinforcement ratio(Vs). Test results are as follows ; (1) The failure modes of specimens under cyclic loading were concentrated at critical region from beam-column joint face. (2) Ductility index($\mu$f) were increased with increasing of shear confinement ratio and flexural strength ratio. (3)The specimens with 2ft extension distance showed more ductility than the specimens with 1ft extension distance.

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