Seismic performance of the spatial model of precast concrete shear wall structure using grouted lap splice connection and cast‐in‐situ concrete

Abstract

Precast concrete structure has been increasingly used all over the world. Its seismic performance has always been the key factor of its application in earthquake‐affected zones, especially in China. A new precast concrete shear wall structure using grouted lap splice connection and cast‐in‐place concrete was proposed in this paper. Low‐cyclic reversed load testing was conducted on a one‐half scale spatial specimen of the bottom four stories of the new precast concrete shear wall structure. The test results were compared with the push‐over analysis results to evaluate the seismic performance of the specimen. The specimen showed good integrity and satisfies the current demands for Chinese seismic fortification. Moreover, due to the effect of infill walls strengthening the shear walls, and the effect of local cast‐in‐situ concrete regions constraining the precast components and connecting transverse walls to longitudinal walls, the specimen performed as tube structure and possessed excessive strength and stiffness.