Research on the performance of T-type RHS Joints

Abstract

Abstract. The inner plate can be used to stiffen square tubular T-joint in order to improve the performance of square tubular T-joint and the radial stiffness of square tube. In this paper, tow methods of experiment and numerical simulation have been used to study the strengthening effect. Three scales of welded T-type RHS joints have been designed and three corresponding finite element modes have been established. Their anastomotic deformations verify the accuracy of the finite element model, boundary condition and loading mode by comparing the experiment and numerical simulation results. The research 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.