Finite element analysis of seismic performance of built-in section steel assembled concrete shear wall

Finite element simulation analysis was carried out on the seismic performance of the joint test specimens of built-in section steel assembled concrete shear wall. A finite element analysis model is established, and referring to specifications and existing research results, the definition of constitutive relation properties of concrete, section steel, steel bar and other materials is emphatically elaborated, in which the damage model is introduced to simulate the damage characteristics of concrete materials under low-cycle repeated action. After obtaining the cloud diagram and hysteretic curve of strain, stress, deformation and structural damage of the finite element test results, the differences between the finite element analysis and the experimental study are compared, it is found that the structural damage is obvious and the pinch effect of hysteretic curve reflects the characteristics of flexural-shear failure. Comparing the results of finite element analysis with the experimental results, the finite element analysis model can simulate the test conditions well, and basically embody the process of stress, strain, displacement, damage and failure characteristics of the specimens.