Numerical Study on Out-of-Plane Mechanical Performance of New Type Precast Shear Wall with Unspliced Vertical Distribution Bars

Abstract

To eliminate the shortcomings in the grouting sleeve in precast shear wall structure induced by the poor grouting, difficult quality assurance and low construction efficiency, a new type of precast shear wall structure with unspliced vertical distributed bars (SGBL precast shear wall) was proposed. In this paper, a numerical study was carried out to preliminary explore the out-of-plane mechanical performance of SGBL precast shear wall based on the verified finite element simulation method. The influence of different parameters on the out-of-plane mechanical performance of SGBL precast shear wall was investigated by FE analysis. The results show: 1. The out-of-plane mechanical performance of SGBL shear wall is similar to that of cast-in-situ shear wall; 2. The axial compression ratio is the key factor of out-of-plane mechanical performance of shear wall and increase of wall thickness can significantly improve the out-of-plane bearing capacity. Finally, several engineering suggestions were proposed to control the out-of-plane safety of SGBL precast shear wall.