Research on Hysteretic Behavior of T-Type RHS Joints with Inner Stiffened Plate

摘要

The inner plate can be used to stiffen square tubular T-joint in order to improve the performance of square tubular T-joint and improve the radial stiffness of square tube. The research based on numerical simulation in the paper proved that RHS joints with inner stiffened plate had better ductility, energy dissipation and seismic performance because of the change of failure mode of specimen. The effects of inner plate and hole size on hysteretic behaviour of stiffened joint have been analyzed in this artical, and the suggestion about the design of T-type RHS joints with inner stiffened plate is put forward.