组合节点端板连接节点高温性能的研究现状与前景

A Review of Research on End-Plate Composite Joint Behavior in Fire

对高温下钢-混凝土梁柱端板连接节点的研究现状做了较全面的综述。近年来随着组合结构在土木工程中不断地推广应用,高温下构件、节点、结构体系的耐火性能成为组合结构抗火研究的重点。一些高温试验、有限元软件数值模拟的建立、理论模型成为近几年来的主要研究手段。但在现有的研究中,对一些影响参数和节点处于各种应力状态下的受力性能仍然没有做合适的考虑,这些因素将导致理论存在一定的误差,因此有必要进行更为深入的理论研究。

This paper presents a review of recent studies on the behavior of beam-to-column composite joints in fire. Along with the widely application of composite structures, the fire resistance research of composite structure focuses on its structural members, connections and the structure as a whole. Several experiments at elevated temperatures, finite element simulation and theoretic model of joint became the main research means. But there are till some important points that haven＇t been properly considered, such as the accumulative effects on joints, and a number of factors which could greatly influence the whole joint behavior theoretically. It is necessary to carry out an in-depth study.