Com pa rjsion of seismic performance of rc precast fabricated shear wall with different infillled opening

A new method to infill the opening in the RC precast fabricated concrete shear wall was applied in China. In this paper, three geometrically identical RC precast fabricated shear wall specimens were experimented under constant axial load and quasi-statie cyclic lateral loading. The methods to infill the opening of the wall were respectively integration infill, masonry infill and without infill. Hysteretic curves, skeleton curves, failure process, variation of rebar strain, stiffness, ductility and energy-dissipating capacity were obtained. The results showed that the integration shear wall owns good seismic performance. Its bearing capacity, stiffness, energy-dissipating capacity are excellent while ductility is relatively poor. Masonry infilled wall and wall without infill also own good seismic performance. Meanwhile, numerical simulation of three specimens was conducted by using finite element (FE) software OpenSees. Based on the reasonable modeling and the application of multi-layer shell element, the FE results were verified with the experimental results.