Research on Seismic Performance of Semi-Rigid Steel Frames with Corrugated Steel Plate Shear Walls

In order to study the influence of corrugated steel plate shear wall in the semi-rigid frame on the seismic performance of the structure, a numerical model was established by ABAQUS to explore and analyze. Three different corrugated steel shear walls were designed and combined with the semi-rigid frame. First, a single-layer single-span finite element model was established and verified with the relevant research models in the existing literature to ensure the accuracy of the model. Then, on this basis, three corrugated steel plate shear walls with different structures were established, which were combined with the semi-rigid frame to form a semi-rigid frame-corrugated steel plate shear wall structure system. The seismic performance of the system under the action of lateral forces was studied, and finally the shear distribution law of the structural system of different walls embedded in the semi-rigid frame was explored. Finite element results showed that the semi-rigid frame (KKJ) had good ductility, less antilateral stiffness and low bearing capacity, its energy dissipation was relatively stable but the energy consumption was not strong; the semi-rigid frame filling wall (KKJ-Q1) could greatly increase the system stiffness, bearing capacity and energy consumption capacity, so as to reduce its ductility; the wall-filled foam concrete (KKJ-Q2) could inhibit the buckling of corrugated steel plates and improve the overall performance of the wall, its stiffness, bearing capacity and energy consumption capacity were further increased; the strengthening ends at both ends of the wall could avoid premature damage of the wall and loss of bearing capacity, its stiffness and bearing capacity had been improved to a certain extent, as the strengthening end height increased, to the plastic deformation of the wall shifted from both ends to the center, the wall failure mode was changed from bending to curved shear, the stiffness, bearing capacity and energy consumption capacity of the wall were further improved; as the external load increased, the wall shear force showed the trend of rising first and then decreasing, the shear ratio of wall Q3> Q2> Q1, the wall stiffness and shear ratio were proportional.