An Analytical Study on the Bond-Properties of Axial Bars Embedded in Massive Concrete

매시브콘크리트에 배근된 주철근의 부착특성에 관한 해석적 연구

  • 장일영 (삼성종합건설 기술연구소) ;
  • 이호범 (삼성종합건설 기술연구소) ;
  • 이승훈 (삼성종합건설 기술연구소 연구원) ;
  • 변근주 (연세대학교 공과대학 토목공학과)
  • Published : 1992.04.01

Abstract

Description of the behavior of the R.C structural members fixed on massive concrete is not normally generalization of recognized configuration for regular R.C. design guidanes. This can be due to the complexity of evaluation of internal resistancy and deflection changes of the members subjected to the various external forces. On the base of axially loaded member fixed on footing, however, the estimation of deflection changes due to flexural force shear force and rotational force is to be carried out in ways of specifying the bond characteristics of axial bars embedded in massive concrete. This work is to quantify adhesion of steel-concrete, initial concrete cracking stress near bar rib, maximum bond stress and residual stress in concrete respectively. In addition to quantification of them for particulate behavior, the suggestions of multi-linear bond stress-slip diagram made in carrying out finite element analyses for adhesion failure, examining concrete cracking status and reviewing existing experimental data lead to alternatively constructed relationship between bond stress and slip for a axial bars embedded massive concrete.

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