Research Advances on Steel Frame Beam-Column Joints with Seismic and Collapse Resistance

Abstract

With the development of building industrialization, the prefabricated buildings have received unprecedented attention. Most of the steel structures are prefabricated in the factory and installed in the construction site, which is a typical prefabricated building structure. For the commonly used steel frame structures, the research status of the seismic and collapse resistance of the beam-column joints were summarized respectively. Then, the research status of the joints with seismic and collapse resistance was presented. Existed research showed that: The engineering design is no longer satisfied with the good seismic performance. The building structures need to possess recoverable function at the same time. The steel frame joints with recoverable function mainly include: the bolted joints; the joints with energy dissipation damper; the hinged connection joints. On the other hand, to fully exert the catenary effect of the steel beam under collapse condition, it is necessary to improve or optimize the existed joints. This has become a hotspot in the anti-collapse research. At present, the earthquake and collapse condition were not synthetically considered for the research of the steel frame joints. Therefore, it is urgent to present a novel steel frame joint with seismic and collapse resistance.