In recent years, seismic disasters occur frequently, and the traditional steel structure buildings have large residual deformation after earthquake and are difficult to be repaired, while the self-replacing structure realizes the seismic objectives of minimal damage during the earthquake, and can continue to be used after the earthquake without repairing or a little bit of repairing, which has been widely concerned by scholars both at home and abroad. In recent years, a new type of high-efficiency assembled self-reinstalled steel frame structure system based on prestressing technology and bolt connection is proposed, which realizes the high-efficiency assembling goal of no overhead tensioning and short construction period under the premise of similar function with the traditional self-reinstalled steel structure system. On this basis, the high-efficiency assembled steel frame-open-seam steel plate shear wall structure is proposed and the proposed static test study of the structure is completed. The structure mainly consists of two parts: the high-efficiency assembled steel frame and the open-seam steel shear wall, which are connected by high-strength bolts to realize high-efficiency assembly. The high-efficiency assembled steel frame consists of steel columns and prestressed steel beams, which are connected by stranded steel wires and high-strength bolts.
ABAQUS finite element software was used to numerically simulate the high-efficiency assembled steel frame-open-seam steel plate shear wall structural test. The steel columns, prestressed steel beams and steel plate shear walls in the high-efficiency assembled steel frame structure are all constructed with C3D8R eight-node hexahedral linear units, and the prestressed steel strands are constructed with T3D3 three-dimensional three-node truss units. The effects of geometric and material nonlinearities are taken into account in the computational modeling, and the numerical simulation adopts the same displacement loading system as the test. The test and numerical simulation end at the structural elastic-plastic interlayer displacement angle limit of 1/50.

The numerical simulation and test results are compared and analyzed to verify the reliability of the finite element analysis method. Meanwhile, the performance of the high-efficiency assembled steel frame-open-seam steel plate shear wall structure is compared with that of the high-efficiency assembled steel frame without open-seam steel plate shear wall, and the hysteresis curves and energy dissipation performance, stiffness, self-resetting capacity, and equivalent plastic strains of the two are analyzed, so as to further study the seismic performance of the high-efficiency assembled steel frame-open-seam steel plate shear wall structure and the role of open-seam steel plate shear wall.
The results show that: the hysteresis curves and frame opening widths obtained from numerical simulation are in good agreement with the experimental results, which can well simulate the effect of the node opening closure mechanism; the high-efficiency assembled steel frame-open slit steel plate shear wall structure has a good opening closure mechanism and self-reinstatement capacity, high initial stiffness, good energy dissipation capacity, and high lateral load carrying capacity; the residual The residual capacity of high-efficiency assembled steel frame-open seam steel plate shear wall structure is high; the opening is small, and the maximum cable force during the test is much smaller than the yielding cable force of steel strand, and the high-efficiency assembled steel frame maintains the elasticity basically except for the slight plasticity at the foot of the columns, which provides a good foundation for the structure to withstand larger seismic effects. By comparing the numerical simulation results of the high-efficiency assembled steel frame-open-seam steel plate shear wall structure and the high-efficiency assembled steel frame without open-seam steel plate shear wall, it can be seen that the open-seam steel plate shear wall can effectively improve the structural stiffness and energy dissipation capacity, and the open-seam steel plate shear wall can flexure dissipate the energy, which protects the frame main structure well, and thus the main structure can be recovered quickly after the earthquake by replacing the open-seam steel plate shear wall. The main structure can be quickly restored after the earthquake by replacing the open-seam steel shear wall.