钢结构梁柱连接节点抗震性能研究进展  

Research advances in seismic performance of steel beam-to-column connections

作　　者：吴兆旗[1] 何田田[1] 姜绍飞[1] 苏建强[1] 

机构地区：[1]福州大学土木工程学院,福建福州350108

出　　处：《福州大学学报（自然科学版）》2011年第5期658-665,共8页Journal of Fuzhou University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51008081);中国博士后科学基金资助项目(20100470867);福州大学科技发展基金资助项目(2010-XQ-25)

摘　　要：钢结构梁柱连接节点是保证梁和柱协同工作的关键部件,其性能直接影响结构的刚度、稳定性和承载能力.对钢结构梁柱节点应用及发展历史进行回顾,对近年来节点抗震性能的研究进展及其构造措施的改进进行总结.发现目前梁柱连接节点的耗能能力和塑性变形多是由梁端形成的塑性铰提供;尽管这些节点在实验中表现出优越的抗震性能,但实际工程这些节点若受到损坏,修复相对困难且费用较高.为便于震后修复,基于控制思想提出了带有耗能元件的梁柱节点构造.然而目前该技术尚存在一些不足,需要进一步研究.Beam-to-column connections are the key parts for guaranteeing beams and columns to work together.Their performance can affect significantly the stiffness,stability and bearing capacity of structures.This paper looked back the history of application and development of the beam-to-column joints,and summarized the seismic performance research and some improvements of connection details recently.It was found that the energy dissipation and plastic rotation of the common joints are provided by the plastic hinges which are formed in the beams.Although the joints display excellent seismic performance in laboratory,the damaged joints in practice will be repaired difficultly and costly.Some innovative connections,based on the intelligent control concept,could not only provide good seismic performance but could also be easily repaired after a heavy earthquake.However,the technology of the connections is not enough to use in practice and the further research need carry out.

关 键 词：钢结构 梁柱节点 抗震性能 焊接连接 螺栓连接 耗能元件 

分 类 号：TU391[建筑科学—结构工程]