装配式钢-混结合梁柱节点有限元分析  

BEHAVIOR OF ASSEMBLING STEEL-CONCRETE COMPOSITE BEAM-TO-COLUMN JOINT

作　　者：韩坚强 魏豪 吴旭东[2] 何余良[2] 肖景平 HAN Jianqiang;WEI Hao;WU Xudong;HE Yuliang;XIAO Jinpin(Shaoxing Construction Industry Modernization Promotion Center,Zhejiang Shaoxing 312000,China;Shaoxing University,Zhejiang Shaoxing 312000,China;Huahui Design Group,Zhejiang Shaoxing 312000,China)

机构地区：[1]绍兴市建筑产业现代化促进中心,浙江绍兴312000 [2]绍兴文理学院,浙江绍兴312000 [3]华汇工程设计集团股份有限公司,浙江绍兴312000

出　　处：《低温建筑技术》2020年第5期57-61,82,共6页Low Temperature Architecture Technology

基　　金：浙江省基金“混杂纤维混凝土组合桥桥面板疲劳破坏机理及疲劳性能研究”(Y18E080056);2019年度浙江省建设科研项目(2019K149)。

摘　　要：为了提高装配式建筑的装配率,文中提出一种采用螺栓连接的装配式钢-混结合梁柱框架体系。研究梁柱节点的力学性能,在前人试验基础建立二维钢混结合段有限元模型,然后再建立三维钢混结合段有限元模型,通过对比两者的计算结果验证三维有限元模型的有效性,最后与钢节点进行装配获得节点的基准有限元模型进行参数分析。结果表明端部钢梁长度和连接程度对节点核心区应力分布影响可以忽略,但对节点抗弯性能和破坏形式影响较为显著。In order to improve the assembly rate of prefabricated buildings,this paper presents a new type of bolt joint connection in prefabricated steel-composite beam-column frame system.Based on the test results in the literature,the accurate 2D finite element model of steel-concrete composite part was established to study the mechanical properties of the beam-to-column joint.At the same time,the 3D finite element mode of steel concrete composite part was built,and the 3D finite element mode was validated by the accurate 2D finite element model of steel-concrete composite part.Then standard finite element model of the beam-to-column joint was set up.The results showed that the length of short steel beam and connection degree had little the influence on the stress distribution in the core area of the joint,but it has a significant effect on the bending resistance and failure form of the joint.

关 键 词：装配式框架 连接度 静力性能 

分 类 号：TU312.1[建筑科学—结构工程]