Study on Relationship of Flexural Moment-Curvature Based on Bond Property of Reinforced Concrete Member

철근콘크리트 부재의 부착특성을 고려한 휨모멘트-곡률 관계에 관한연구

  • 장일영 (삼성종합건설 기술연구소 선임연구원 공학박사)
  • Published : 1991.12.01


The object of this study is to propose the Flexural moment-curvature relationship based on the bond property between concrete and steel for noncracking zone, to evaluate the flexural displacement of reinforced concrete member. The bond-slip relationship and the strain hardening effect of steel were taken into consideration in order to evaluate the spacing of the cracks and the curvature distribution. Calculated curvature distribution along the longitudinal axis was transformed into equivalent curvature distribution. The flexural displacement was calculated by means of double integrals of the equivalent curvature. Furthermore, 34 beams were tested in order to verify the proposed procedure Calculated values agreed well with the experimental data, and so it is pointed out that proposed method is widely acceptable for the practical evaluation of flexural displacement of reinforced concrete member.