Studies on seismic performance of precast shear wall with indirect overlapping reinforcements

Precast shear wall with indirect overlapping reinforcements is a novel type of precast structural system that includes the hollow precast shear wall panel and indirect overlapping reinforcements. The connection mainly solves the existing construction difficulties at the connection part, because the overlapping reinforcements can be conveniently inserted into the hollow part of the precast panel before pouring concrete into the hollow. In this paper, a total of 6 full-scale specimens are designed for the cyclic loading test, in which 2 cast-in-situ specimens are in the control group. It is found that the seismic performance of the precast specimens is similar to those of the cast-in-situ specimen, indicating the effectiveness of indirect overlapping. Increasing the overlapping length and using cast-in-situ edge member can both improve the seismic behavior. The studies show that the proposed structural system can be used in practical engineering with similar design procedure with cast-in-situ structures.