STUDY ON THE SEISMIC BEHAVIOR OF STEEL HIGH-PERFORMANCE-CONCRETE SHEAR WALLS WITH DIFFERENT PARAMETERS

The study on the seismic behavior of steel high-performance-concrete (SHPC) shear walls with different parameters was performed in this paper. The fiber wall element model was used to analyze the seismic characteristics of SHPC walls. The results of numerical simulation are agreement with experimental results and it proves that the fiber wall element model is reasonable in the nonlinear analysis of SHPC shear walls. Also, some parameters on the seismic behavior of SHPC shear walls were analyzed, such as the axial load ratio, the length of restricted edge members and ratio of steel. The analysis results showed that the bearing capacity of SHPC shear walls is improved with the increase of the axial compression ratio．The deformation capability of the SHPC shear walls decreases rapidly with the increase of the axial compression ratio. Moreover, when the value of axial compression ratio reached to 0.5, the displacement ductility ratio is less than 3.0. The deformation capability of the SHPC shear walls under a high axial load ratio improves with the increase of the length of restricted edge members. The bearing capability of SHPC shear walls improves with the increase of the steel ratio; however, the deformation capability improves not so significantly.