Abstract：A new type of double steel plates and concrete composite shear wall with L-shaped connector was proposed. 6 specimens of the double steel plates and concrete composite shear wall in two groups were tested under quasi-static loading to study their seismic behaviors. The varying parameters of the specimens are axial compression ratio and the spacing of tie connectors, and based on the tests, the failure pattern of specimens, load-displacement hysteretic curves, skeleton curves, stiffness degradation curves, etc., were analyzed. The test results show that the L-shaped connector not only can enhance the confining to the core concrete through the outer packaging steel plate, but it can also restrain the buckling of steel plates, and hence the cooperative work between the outer steel plate and concrete can be ensured. This novel composite shear wall possesses high bearing capacity, great ductility and energy dissipation capacity. Before approaching the maximum peak load, no remarkable local buckling occurred in the steel plate of the wall, and eventually, the composite shear wall failed due to the buckling and tensile fracture of the end columns; the mean value of the ultimate drift angles was 1/58 for all the test specimens when they failed; with the decrease of the spacing between L-shaped connectors, the ductility capacity and the lateral bearing capacity of the specimens could be improved greatly.
