DEVELOPMENT OF FEA MODELS OF RC SLABS AND SHEAR WALLS CONSIDERING DAMAGE ACCUMULATION UNDER REVERSE CYCLIC LOADING

The constitutive models of concrete and steel are very important for investigating the behavior of loading capacity-deformation of reinforced concrete structures. The purpose of this paper is to develop material constitutive models for two-dimensional nonlinear finite element analysis of RC panels and shear walls subjected to reverse cyclic loading. The method for considering damage accumulation of concrete under cyclic loading is presented and two-dimensional nonlinear finite element analyses of RC panels and shear walls are carried out. Based on the comparison between analysis results and test results, it is concluded that the nonlinear behavior of RC panels and shear walls subjected to reverse cyclic loading can be simulated well with the two-dimensional finite element models provided in this paper, which considers damage accumulation.