Numerical Analysis on Seismic Performance of Load Bearing 3D Walls

To investigate the seismic performance of load bearing 3D walls under low cyclic reversed loads, numerical analysis for load-displacement curves of load bearing 3D walls under low cyclic reversed loads are performed by using the solid model based on ABAQUS software. The simulation results agree well with the test results in literature. The influences of the height-width ratio, concrete thickness and concrete strength on the seismic performance of load bearing 3D walls under low cyclic reversed loads are analyzed. The analytical results indicate that height-width ratio is the major influence factors on the seismic performance of the walls. The flexural failure is more likely to observe in the wall with large aspect ratios, which increases the ductility and energy dissipation capacity of structure. When concrete layer thickness increased from 30 mm to 40 mm and 50 mm, the wall’s ultimate load-bearing capacity increased from 208 kN to 253 kN and 279 kN. Similarly, when the concrete layer strength increased from C25 to C30 and C35, the ultimate strength of the element accordingly increased from 236 kN to 253 kN and 260 kN.