装配式临时看台支承结构节点刚度研究
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(1 北京交通大学,北京100044; 2 北京首都国际机场股份有限公司,北京 100621)[摘要]对装配式临时看台节点的抗弯、抗拉和抗压承载力进行了多组试验,研究探讨节点的力学性能,得到了其极限承载力、破坏模式及荷载-位移曲线,在此基础上给出了节点的简化计算模型,并通过对整体格构柱的有限元和加载试验分析,验证了节点简化模型的正确性。[关键词]装配式临时看台;装配式插销脚手架;节点模型;试验中图分类号:TU391文献标识码:A文章编号:1002-848X(2011)06-0051-04Research on node stiffness of temporary assembly-type bolt grandstandQin Jingwei1, Yang Qingshan1, Liu Wei1,2, Hui Yi1(1 Beijing Jiaotong University, Beijing 100044, China; 2 Beijing Capital International Airport Co., Ltd., Beijing 100621, China)Abstract:A series of tests on the bending, compressive, tensile capacity of the nodes of temporary assembly grandstand were carried out. The mechanical properties were discussed. Its ultimate bearing capacity, failure mode and load displacement curves of the nodes were obtained. On this basis, a simplified calculation model of the node was given. By comparing finite element analysis with load tests on trellis columns, the accuracy of the simplified model of the node was verified.Keywords:temporary assembly grandstand; fabricated bolt scaffold; node model; test作者简介:秦敬伟,博士研究生,Email:qinjingwei2911@sina.com。参考文献[1] JI T, ELLIS B R. Effective bracing systems for temporary grandstands[J]. The Structural Engineer, 1997, 75(6):95-100.[2] JI T. Concepts for designing stiffer structures[J]. The Structural Engineer, 2003,81(21): 36-42.[3] EN13200-6:2006 Spectator facilities — Part 6: Demountable (temporary) stands[S].[4] Eurocode3.Design of steel structure[S].2002.[5] BJORHOVDE B, COLSON A, BROZZETTI J. Classification system for beam-to-column connection[J]. Journal of Structural Engineering,1990,116(11):3059-3076.
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