ABSTRACT

A new type of assembled semi-rigid beam-column joint is studied, in which 10.9-grade high-strength bolts and 4.6-grade common bolts are used to embed the beam-column respectively, and Q345 steel plates and L-shaped connectors are used for welding between the prefabricated corbel column and the prefabricated rectangular beam. Through numerical simulation of ABAQUS, its hysteretic curve, skeleton curve, energy consumption and other seismic performance are analyzed. The results show that although the basic mechanical properties of high-strength bolts are slightly higher than those of common bolts, their hysteretic curves, skeleton curves and energy dissipation curves are basically consistent, indicating that the seismic performance of the two types of bolts is close. As the bolts damaged in the earthquake can be replaced, using common bolts in the construction process can save construction costs. The installation process discards the sand and cement used in traditional projects while reducing construction waste.