Nonlinear Finite Element Analysis of New Precast Concrete Shear Wall

摘要

New precast concrete shear walls use mild steel bars protruded from lower precast concrete wall and anchored in grouted metal bellows embedded in upper precast concrete wall to form integrity. The horizontal connection of precast shear walls is frequently located a certain distance higher than the story floor. Thus the force mechanism of new precast shear wall is probably different from that of traditional monolithic wall. Based on the completed seismic experiments on new precast concrete shear wall, nonlinear finite element model was established to simulate the lateral performance of the tested precast specimen. The nonlinear finite element model was evaluated by comparing the calculated lateral force versus lateral displacement curve with the measured skeleton curve. The comparison results showed that the established nonlinear finite element model had good consistence with the tested specimen.