Abstract
Abaqus is often used to analyze the dynamic elasto-plastic response of tall buildings under strong earthquake. However, the analysis results of the hysteretic behavior of RC shear wall are not very satisfactory. In this paper, the residual strain is proposed to determine the damage parameters in the concrete damaged plasticity model in Abaqus, which include the damage factor and compression stiffness recovery factor. The method can greatly reduce the lagging or exceeding of strain in the compression reloading path. The confinement effect of distributed bars on concrete of RC shear walls is also considered. In addition, a secondary-developed uniaxial constitutive model of steel is adopted to present the Baushinger effect under the reciprocating loading. Simulation results are in good agreement with the test results. It shows that the methods purposed in this paper can effectively realize the simulation of the hysteretic behavior of RC shear wall under the low cyclic reciprocating loading.
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