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FINITE ELEMENT AND EXPERIMENTAL ANALYSIS ON FLUSH ENDPLATE BEAM-COLUMN JOINT OF PORTAL FRAME
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摘要: 对4个不同构造的门式刚架平齐式端板连接节点进行承载力试验及相应的有限元分析,以了解实际工程中该类节点的力学性能,并对节点在正负弯矩作用下的性能进行有限元分析。研究表明,节点域设置加劲肋可显著提高承载力,仅加厚梁端扳对承载力提高作用不明显,平齐式节点非线性特性出现较早。Abstract: The bearing capacity tests of 4 flush endplate connections of portal frame with different details were carriedout along with their finite elements analyses to comprehend the mechanical property of such connections in practice．The behaviors of these connections under positive and negative moment were analyzed by finite elements method．Theresults show that setting ribbed stiffener in joint panel zone will remarkable increase the bearing capacity, merelythickening the beam endplate will not improve the bearing capacity, the nonlinear character appears in relatively earlystage for flute type column-beam connections．
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Key words:
- portal frame /
- flush endplate connection /
- full-scale test /
- finite element analysis
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[2] Guo B,Su M,Lei S.Experimental Behavior of Rigid and Semirigid Steel Frames Under Cyclic Loading[C]∥Proceedings of the12th International Conference on Engineering,Science,Construction,and Operations in Challenging Environments.2010:2785-2792. CECS102∶2002门式刚架轻型房屋钢结构技术规程[S]. [3] Trker T,Kartal M E,Bayraktar A,et al.Assessment of Semi-Rigid Connections in Steel Structures by Modal Testing[J].Journal of Constructional Steel Research,2009,65(7):1538-1547. [4] Mehrabian A,Ali T,Haldar A.Nonlinear Analysis of a Steel Frame[J].Nonlinear Analysis:Theory,MethodsApplica-tions,2009,71(12):616-623. [5] Aribert J M,Dinga O N.Modeling and Experimental Investigation of Bolted Flush End-Plate Composite Beam-to-Column Joints[J].ASCE,2000(62):711-724. [6] 陈绍蕃.门式刚架端板螺栓连接的强度和刚度[J].钢结构,2000,15(1):6-11. [7] 庄茁,由小川,廖剑晖,等.基于ABAQUS的有限元分析和应用[M].北京:清华大学出版社,2009. [8] Simulia INC.Abaqus Version6.9Documentation[M].USA:Simulia INC,2009. [9] GB500172003钢结构设计规范[S]. -
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