THE STUDIES OF THE HIGH SEISMIC PERFORMANCE RC SHEAR WALLS

摘要

In order to improve the ductility of shear walls under earthquake loading, high seismic performance shear walls have been proposed to have steel bars in the same direction as the principal direction of applied stresses in the critical regions of shear walls. This paper presents the test results and model-based simulation of two shear walls under shake table excitation and two shear walls under reversed cyclic loading. Based on the experimental results, the tested shear walls with reinforcement oriented close to the principal tensile direction of applied stresses have greater ductility than that of the conventional shear wall. The model-based simulation based on the Cyclic Softened Member Model (CSMM) is performed and compared with the test results. The comparison shows that CSMM can well predict the seismic behaviors of the shear walls.