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底部带转换桁架的钢框架结构设计与分析 被引量:2

Design and analysis of steel frame structure with transfer truss
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摘要 转换桁架是转换结构中常采用的一种结构形式,也是结构受力的关键部位。结合工程实际介绍了底部带转换桁架的钢框架结构的受力性能与设计方法。基于静力弹塑性方法对结构进行抗震性能化分析,给出了结构的能力谱和需求谱,分析了结构的出铰机理,得出了结构在性能点处的弹塑性层间位移角。针对底层V形分叉柱柱脚铸钢节点进行了有限元分析,以确保关键节点具有足够的承载力。基于上述结构分析结果,给出了背景工程的结构安全评定及设计建议。 Transfer truss is often used in transfer structures and it is also the key position of the structure. Mechanical behavior and design methods of the steel frame structure with a transfer truss based on a relevant project were introduced. Seismic performance design was conducted based on the Pushover analysis, and the capacity spectrum and demand spectrum were given. At the same time, the appearance pattern of yield hinges was analyzed and the elastic-plastic inter- story drift angle of the structure at the performance point was given. The cast steel joints at the bottom of the V-shaped bifurcate columns were analyzed by the finite element method to ensure the sufficient bearing capacity. Based on the results of structure analysis, safety assessment and design suggestion of the relevant project were given.
出处 《建筑结构》 CSCD 北大核心 2013年第19期69-73,共5页 Building Structure
基金 江苏省产学研前瞻性联合研究项目(BY2012200)
关键词 转换桁架 结构设计 静力弹塑性分析 抗震性能 节点分析 transfer truss structure design Pushover analysis seismic behavior node analysis
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参考文献8

  • 1GB50009--2012建筑结构荷载规范[s].北京:中国建筑工业出版社,2012.
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二级参考文献4

  • 1.混凝土结构设计规范(GB50010-2002)[S].北京:中国建筑工业出版社,2002..
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