基于ABAQUS的预制装配式框架结构新型梁柱节点研究  

Research on new beam-column nodes of prefabricated frame structure based on ABAQUS

作　　者：常雪 王宁[1] CHANG Xue;WANG Ning(School of Civil Engineering,Qinghai University,Xining 810016,China)

机构地区：[1]青海大学土木工程学院,青海西宁810016

出　　处：《青海大学学报》2020年第4期62-69,共8页Journal of Qinghai University

基　　金：青海省科学技术厅自然科学基金青年项目(2018-ZJ-953Q);青海大学中青年科研基金项目(2018-QGY-4);青海省科学技术厅创新平台建设专项项目(2018-ZJ-T01)。

摘　　要：针对预制装配式框架结构,提出一种新型梁柱节点连接方式。采用非线性有限元分析软件ABAQUS建立现浇与新型梁柱节点对比模型,混凝土采用塑性损伤模型、钢筋采用双折线模型,通过混合位移加载方式模拟节点在低周反复荷载作用下的抗震性能。结果表明:新型梁柱节点与现浇节点具有相似耗能能力、破坏机理和破坏形态,且新型梁柱节点承载能力明显优于现浇节点。因此新型梁柱节点的抗震性能更优,可应用到预制装配式框架结构中。A new type of beam-column connection is proposed for prefabricated frame structures.The non-linear finite element software ABAQUS is used to establish a comparison model between cast-in-situ and new beam-column nodes.The plastic damage model is used for concrete and the double broken line model are used for reinforcement.The seismic performance of the nodes under low cyclic reversed load is simulated by mixed displacement loading.The results show that the new beam-column node and cast-in-place node have similar energy dissipation capacity,failure mechanism and failure mode,and the bearing capacity of the new node is obviously better than that of cast-in-place node.Therefore,the new nodes have better seismic performance and can be applied to prefabricated frame structures.

关 键 词：预制装配式框架结构 节点 有限元模拟 抗震性能 

分 类 号：TU375.4[建筑科学—结构工程]