钢支撑-混凝土框架结构的新型节点抗震性能分析研究

Research on seismic performance analysis on the new joint of concrete frame-steel bracing structure

钢支撑-混凝土框架节点大部分均采用预埋件作为钢支撑与混凝土构件之间的连接件。提出一种连接板直接嵌入节点的新型锚固方式,通过对新型连接节点抗震性能进行有限元分析得到节点位移、节点板应力、混凝土主应力及塑性损伤因子。该新型连接节点传力路径清晰、现场施工方便,可以直接应用于钢支撑-混凝土结构中的支撑连接节点,在确保结构安全可靠的同时可以较快提高施工速度,具有推广应用价值。

Most of the concrete frame-steel bracing structure joints use embedded parts as the connection between steel brace and concrete members.In this paper,a new anchoring method of connecting plates directly embedded in the joints is proposed.Through the finite element analysis of the seismic performance of the new joint,the joint displacement,joint plate stress,concrete principal stress and plastic damage factor are obtained.This new type of connection joint has clear force transmission path and convenient on-site construction,and can be directly applied to the connection joint in concrete framesteel bracing structure.It can not only ensure the safety and reliability of the structure,but also quickly improve the construction speed,and has the value of popularization and application.