Study on Seismic Performance of Prefabricated Frame Structure with New Beam-Column Joint

In this paper, a new type of prefabricated beam-column joint is proposed, which uses high-strength bolts and embedded steel plates to connect the prefabricated beam-column. The finite element software ABAQUS is used to establish the frame structure model of the new prefabricated beam-column joint, and then two natural ground motion records and one artificial ground motion record are selected to carry out the time history analysis under the action of rare earthquakes. The cast-in-place frame structure model with the same size and loading mode is established for comparative analysis. The core components of the new prefabricated beam-column joints have not yielded to damage under three ground motion records. The damage is mainly concentrated in the beam ends, which meets the design principle of ‘strong joints and weak components’. The inter-story shear force, vertex acceleration, and inter-story displacement angle of the prefabricated structure under the action of different ground motion records are slightly lower than those of the cast-in-place structure. The results show that the new prefabricated beam-column joints have good seismic performance, which meets the requirements of seismic code, and its overall seismic performance is slightly better than that of the cast-in-place structure.