方钢管柱-H形钢梁隔板贯通节点核心区弹性刚度计算方法研究
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摘要
对方钢管柱-H形钢梁隔板贯通节点梁端承受弯矩时的核心区弹性刚度进行研究,分析核心区的变形机制,在合理假定的基础上,进行理论推导,提出以剪切变形为核心区主要变形机制的隔板贯通节点核心区弹性刚度计算式。基于经试验验证的有限元模型,对隔板贯通节点进行参数化分析,将计算所得理论值与有限元结果进行对比,两者吻合良好,表明所提出的计算式能够准确地计算隔板贯通节点核心区弹性刚度。
The elastic stiffness of the panel zone in diaphragm-through joints between square steel tubular column and H-shaped steel beam subjected to beam moments was studied. The panel zone deformation mechanism of diaphragm-through joints was analyzed. Based on reasonable assumptions,the elastic stiffness formula of the panel zone,which considered shear deformation of the panel zone,was theoretically derived. Based on the verified finite element model,parametric analysis of diaphragm-through joints was conducted. The proposed formula was proved through the comparisons of theoretical results and FEM results,which indicated the accuracy of the proposed formula.
The elastic stiffness of the panel zone in diaphragm-through joints between square steel tubular column and H-shaped steel beam subjected to beam moments was studied. The panel zone deformation mechanism of diaphragm-through joints was analyzed. Based on reasonable assumptions,the elastic stiffness formula of the panel zone,which considered shear deformation of the panel zone,was theoretically derived. Based on the verified finite element model,parametric analysis of diaphragm-through joints was conducted. The proposed formula was proved through the comparisons of theoretical results and FEM results,which indicated the accuracy of the proposed formula.
引文
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[8] RONG B,CHEN Z H,APOSTOLOS F,et al. Seismic Behavior of Diaphragm-Through Connections of Concrete-Filled Square Steel Tubular Columns and H-Shaped Steel Beams[J]. Transactions of Tianjin University,2013,19(3):195-201.
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[11] CHEN Z H,RONG B. Component-Based Mechanical Models for Axially-Loaded Through-Diaphragm Connections to Concrete-Filled RHS Columns[J]. Journal of Constructional Steel Research,2014(102):150-163.
[12]潘伶俐,陈以一. H形梁柱节点域弹性刚度的修正计算式[J].工程力学,2016,33(11):68-74.
[13]王素芳.加强式梁柱连接节点域初始刚度的计算方法研究[J].四川建筑科学研究,2009,35(2):18-20,31.
[14]邵永松,暴伟.铸钢件连接钢框架梁柱节点初始转动刚度计算[J].华中科技大学学报(自然科学版),2011,39(9):96-101.
[15]陶慕轩,聂建国.组合节点变形机制和破坏形态的定量评[J].土木工程学报,2016,49(8):61-68.
[16]吴辽.方钢管混凝土柱-钢梁隔板贯通节点核心区抗剪承载力试验与计算方法研究[D].天津:天津大学,2015.
[2] RONG B,CHEN Z H,ZHANG R Y,et al. Experimental and Analytical Investigation of the Behavior of Diaphragm-Through Joints of Concrete-Filled Tubular Columns[J]. Journal of Mechanics of Materials and Structures,2013,7(10):909-929.
[3] RONG B,LIU R,ZHANG R Y,et al.Flexural Bearing Capacity of Diaphragm-Through Joints of Concrete-Filled Square Steel Tubular Columns[J].Steel and Composite Structures,2016,20(3):487-500.
[4] RONG B,LIU R,LI Z Y,et al. Flexural Formula of DiaphragmThrough Joints of Concrete-Filled Square Steel Tubular Columns[J]. Transactions of Tianjin University,2017,19(4):1-9.
[5] WU L,CHEN Z,RONG B. Calculation Method for the Shear Bearing Capacity of Diaphragm-Through Connections[J].Andvance in Structural Engineering,2016,20:906-916.
[6] WU L,WANG X D,LUO S,et al. Experimental Research on Seismic Performance of the Full-Bolted Diaphragm-Through Connection to RCFST[J]. Advances in Structural Engineering,2015,18(7):959-974.
[7]荣彬,刘睿,吴辽,等.方钢管柱隔板贯通节点抗剪强度研究[J].建筑结构,2016,46(2):49-53.
[8] RONG B,CHEN Z H,APOSTOLOS F,et al. Seismic Behavior of Diaphragm-Through Connections of Concrete-Filled Square Steel Tubular Columns and H-Shaped Steel Beams[J]. Transactions of Tianjin University,2013,19(3):195-201.
[9] QIN Y,CHEN Z H,WANG X D. Elastoplastic Behavior of Through-Diaphragm Connections to Concrete-Filled Rectangular Steel Tubular Columns[J]. Journal of Constructional Steel Research,2014(93):88-96.
[10] QIN Y,CHEN Z H,YANG Q Y,et al. Experimental Seismic Behavior of Through-Diaphragm Connections to Concrete-Filled Rectangular Steel Tubular Columns[J].Journal of Constructional Steel Research,2014(93):32-43.
[11] CHEN Z H,RONG B. Component-Based Mechanical Models for Axially-Loaded Through-Diaphragm Connections to Concrete-Filled RHS Columns[J]. Journal of Constructional Steel Research,2014(102):150-163.
[12]潘伶俐,陈以一. H形梁柱节点域弹性刚度的修正计算式[J].工程力学,2016,33(11):68-74.
[13]王素芳.加强式梁柱连接节点域初始刚度的计算方法研究[J].四川建筑科学研究,2009,35(2):18-20,31.
[14]邵永松,暴伟.铸钢件连接钢框架梁柱节点初始转动刚度计算[J].华中科技大学学报(自然科学版),2011,39(9):96-101.
[15]陶慕轩,聂建国.组合节点变形机制和破坏形态的定量评[J].土木工程学报,2016,49(8):61-68.
[16]吴辽.方钢管混凝土柱-钢梁隔板贯通节点核心区抗剪承载力试验与计算方法研究[D].天津:天津大学,2015.
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