Abstract:
To investigate the mechanical behavior of T-shaped double corrugated steel plate concrete composite shear wall under low cyclic loading, five specimens were tested. The failure mode, hysteretic curves, deformation capacity and energy dissipation capacity of the T-shaped composite shear walls were analyzed. The influence of the edge constraint conditions, corrugation types and axial compression ratio on the seismic performance indicators of T-shaped composite shear walls were studied. The results show that the failure modes of T-shaped double corrugated steel plate concrete composite shear wall can be divided into compression yield failure and compression bending failure. Setting edge restraint members is the key factor to improve the bearing capacity and deformation capacity of T-shaped double corrugated steel plate concrete composite shear wall. The longitudinal-narrowly corrugated steel plate can better constrain the inner concrete, and the they work better under low cyclic loading, while the transverse-narrowly corrugated steel plate shows the most severe degradation in strength. The full-section plastic design method was employed to calculate the bearing capacity of the normal section of the T-shaped double corrugated steel plate concrete composite shear wall, the experimental values are consistent with the calculated values. T-shaped double corrugated steel plate concrete composite shear walls have good bearing capacity and deformation capacity, which can be applied to high-rise buildings and super-high-rise buildings.