Research progress on prefabricated steel structure beam column connection nodes
Prefabricated buildings are an important way to innovate modern design concepts,component production,and on-site management,as well as an important measure to promote modular concepts and intelligent transformation.Based on the current research status of prefabricated steel structure beam column connection nodes in China,this paper elaborates and summarizes the construction and mechanical properties of recoverable beam column nodes,square steel pipe column truss beams,cantilever beam nodes,and prefabricated node forms in frame systems.Research has shown that prefabrica-ted steel structure beams and columns have good bearing capacity,ductility,and seismic performance.However,current research based on prefabricated node construction and various parameters mainly focuses on two-dimensional planes,which to some extent restricts its application and development.Further research is needed on the failure and damage timing of nodes under fire,the connection method between floor slabs and beam column nodes in three-dimensional spatial struc-tures,and the reset mechanism and stiffness change process of the overall structure considering the floor slabs;To provide theoretical basis for increasing the application of new materials and processes and promoting them to practical engineering.
万方数据
维普
