梁-柱节点抗连续倒塌性能研究进展  

Research Progress of Progressive Collapse Resistance of Beam-column Joints

作　　者：裴强[1] 程智 PEI Qiang;CHENG Zhi(College of Architectural Engineering, Dalian University, Dalian 116622, China;School of Civil Engineering, Southwest Jiaotong University Hope College, Chengdu 610400, China)

机构地区：[1]大连大学建筑工程学院,大连116622 [2]西南交通大学希望学院土木工程学院,成都610400

出　　处：《科学技术与工程》2022年第12期4696-4706,共11页Science Technology and Engineering

基　　金：国家自然科学基金(51878108);辽宁省重点研发计划指导计划(2019JH8/10100091)。

摘　　要：结构的连续性倒塌一直是土木工程领域关注的焦点,而梁柱节点作为结构体系传递荷载的关键部位,其一旦遭受破坏,就可能造成结构连续性的倒塌倾覆,进而造成无法估量的损失。简要介绍了整体结构的两种不同的连续倒塌的形式以及四类主要的抗倒塌设计方法,结合已有研究成果从抗连续倒塌模式、抗连续倒塌机制以及抗连续倒塌性能3个方面总结了节点破坏导致的连续性倒塌研究现状。结合应用及研究热点,从试验研究和数值分析角度分别对装配式梁柱节点和自复位梁柱节点的研究进展进行了阐述。最后提出了一种基于超弹性形状记忆合金的新型自复位梁柱节点,并对设计方法、抗倒塌性能以及抗震性能的研究进行了探讨。Progressive collapse of structure has always been the focus of attention in the field of civil engineering,and once the beam-column joints,as the key parts of the structural system load transfer,breaks down the structural system might collapse progre-ssively.Meanwhile,there will be immeasurable economic losses and casualties.The two different forms of structural progressive collapse and four design methods of progressive collapse resistance were briefly reviewed.Then based on the existing research results,considering three issues including the model of progressive collapse resistance,the mechanism of progressive collapse resistance,the perfor-mance of progressive collapse resistance,the state-of-the-art of progressive collapse caused by the failure of the beam-column joint were summarized.The research progress of prefabricated beam-column joints and self-centering beam-column joints were described from the perspective of experimental research and numerical analysis.Finally,a new type of self-centering beam-column joint based on superelastic shape memory alloy was proposed,and the design method,progressive collapse capacity and seismic performance of the joint were discussed.

关 键 词：梁-柱节点 连续倒塌机制 连续倒塌模式 新型自复位梁柱节点 

分 类 号：TU391[建筑科学—结构工程]