Seismic Performance Test and Finite Element Analysis of Monolithic Precast Shear Wall with Partially-Connected Vertical Distributed Steel Bars

In order to study the seismic performance of monolithic precast shear wall with partially-connected vertical distributed steel bars, quasi-static tests were performed on one precast wall panel with partically vertical distributed steel bars welded by embedded parts and one precast wall panel with non-connected distributed steel bars. The test results showed that the cracks of the specimen with vertical distributed steel bars welded by embedded parts were evenly distributed, the hysteresis curve was relatively full, the bearing capacity was high, and the seismic performance was good. The failure mode, hysteretic curve and skeleton curve of the two specimens were obtained by finite element analysis with ABAQUS software, and the simulation results were in good agreement with the experimental results. The effects of longitudinal reinforcement ratio, diameter of connecting bars, height-width ratio, axial compression ratio, number and location of embedded welding plates on the seismic performance of specimens were studied. The results showed that the reinforcement ratio, height-width ratio and axial compression ratio of vertical edge members had great influence on the bearing capacity of the wall. The diameter of the connecting steel bars in the precast wall panel had little influence on the bearing capacity of the wall. Reasonable arrangement of embedded parts on both sides of the bottom of the precast wall panel could effectively improve the bearing capacity and ductility of the wall.