Seismic Behavior of Joints in Additional Angle Steel Prestressed Assembly Frames Based on ABAQUS

Based on the experimental study on seismic behavior of joints in additional angle steel prestressed assembly frames, this paper uses ABAQUS software to numerically simulate and analyze the influence of different factors on the skeleton curve and ultimate load. The results show that the finite element analysis results are in good agreement with the experimental results, which proves that the finite element analysis method used in this paper is reliable; increasing the axial compression ratio, effective prestress, and concrete strength grade can enhance the bearing capacity of the node within a certain range. Capacity and the increase of the normal longitudinal reinforcement ratio of the beam have little effect on the bearing capacity of the joint. This study can provide a reference for seismic design of prestressed fabricated frame structures with additional angle steel.