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钢结构梁柱节点有多种形式,国内外学者研究多侧重在H形梁和H形柱的连接上,对于H形梁和矩形钢管柱(RHS柱)的连接研究则很少。由于矩形钢管柱是封闭截面,节点难以采用普通螺栓连接,采用对拉螺栓连接是这种节点的一种构造解决方案。基于理论模型、结合试验和有限元方法对矩形钢管柱与H形梁端板对拉螺栓连接的滞回性能进行研究,探讨该种连接形式的滞回特性。在试验滞回曲线的基础上,提出了节点的恢复力模型,该模型对钢框架的抗震设计具有较好的参考价值。
There are many forms of beam-column joints in steel structure. Domestic and foreign scholars mostly focus on the connection between H-beams and H-shaped columns. However, there are few studies on the connection between H-beams and rectangular steel columns (RHS columns). Because the rectangular steel column is a closed section, the node is difficult to use ordinary bolt connection, the use of the bolt connection is a structural solution of this node. The hysteretic behavior of bolted rectangular box columns and H-beam end plates to bolted bolted joints is studied based on theoretical models, combined with experimental and finite element methods, and the hysteretic behavior of such connections is investigated. Based on the experimental hysteresis curve, the restoring force model of the joint is proposed. The model has a good reference value for the seismic design of the steel frame.