Experimental and numerical study on the seismic performance of an L-shaped double-steel plate composite shear wall

In recent years, steel plate-wrapped concrete shear wall has been widely used in high-rise buildings as a new form of the composite member. Five L-shaped double steel plate-concrete composite shear wall (LDSCW) specimens (two specimens with wide flange and three specimens with narrow flange) were tested under cyclic load at loading beam. According to test results, the hysteresis performance, stiffness degradation , bearing capacity degradation, energy dissipation , cyclic ductility, and shear lag behavior were discussed in detail. In addition, finite element models were generated by ABAQUS. Specimens with wide flange exhibited higher bearing capacity and initial stiffness , while specimens with narrow flange had better cyclic ductility and energy dissipation capacity. • The seismic behavior of L-shaped DSPC shear walls was investigated under cyclic loading. • The web bears the main deformation under the loading process. • The arranging of steel columns could significantly improve seismic behavior. • The wide-flange specimens had high bearing capacities but low energy consumption capacities.