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Journal of the Korea Concrete Institute

J Korea Inst. Struct. Maint. Insp.
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  • Korea Citation Index (KCI)

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Title Evaluation of Crack Estimation Equation for the Reinforced Concrete Tension Member
Authors 박찬욱 ; 노삼영 ; 신은미
Page pp.197-208
ISSN 1226-6205
Keywords 부착응력-미끌림 관계 ; 균열폭 ; 평균부착응력 ; 인장증강효과 Bond stress-slip relationship ; Crack width ; Mean bond stress ; Tension stiffening effect
Abstract The purpose of this research is the evaluation of the estimation equation of “CEP-FIP Model Code 1990(1991)”, recently included in the domestic “Concrete Structure Design Code(2007)” in consideration of the concrete strength. As evaluation tools, crack element model applied a detailed bond-slip model as well as crack width obtained from experimental results by earlier researches. The crack element model is verified through the comparison with experimental results. The important variables in the estimation equation for the crack width in CEP-FIP Model Code 1990 are the tension stiffening effect and mean bond stress proposed in the paper to be improved in consideration of the concrete strength.