Numerical Analysis on the Buckling of a Longitudinal Bar in Reinforced Concrete Members

철근 콘크리트 부재의 주근좌굴에 관한 수치해석

The study summarized in this paper is concerned with the buckling of a longitudinal bar in reinforced concrete members by numerical analysis method. The objectives of this study are to investigate the stress transfer mechanism between concrete and reinforcment and to propose a modeling equation. The result gives an acceptable agreement between the proposed modeling equation and the computer package as follows: (1) the proposed equation is a possible prediction of the strain softening of concrete and reinforcement buckling. (2) the buckling of longitudinal bars is mainly influenced by the spacing of hoops and the location of the bar.