轨道交通枢纽钢结构工程综合施工技术 |
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郑州东站大跨度铸钢节点空间网格结构跨层桁架施工技术 |
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CONSTRUCTION TECHNIQUE FOR CROSS-LAYER TRUSS OF WIDE-SPAN CAST STEEL SPACE GRID STRUCTURE IN ZHENGZHOU EAST RAILWAY STATION PROJECT |
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摘要 郑州东站西立面设计为大跨度铸钢节点网格结构跨层桁架,网格结构由六边形杆件及铸钢节点组成。采用MIDAS软件仿真计算确定跨层桁架安装及卸载方案,安装分成3层21个单元体及层间嵌补杆件自下而上吊装;卸载采用分层分级由上而下进行。采用三跨连续贝雷钢梁及梁上设置格构架组合支撑体系,解决了上部钢结构安装与下部地铁同步施工难题。跨层桁架施工精度满足设计要求,实现了“结构即建筑”的目标。 |
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关键词: 空间网格结构
跨层桁架
铸钢节点
仿真计算
贝雷梁
组合支撑体系
郑州东站
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Abstract:
The west facade of Zhengzhou East Railway Station adopts cross-layer truss for wide-span cast steel node grid structure which is composed of hexagon rods and cast steel nodes. MIDAS software simulative calculation is adopted to determine the schemes for cross-layer truss installation and unloading, where the installation is realized by dividing the structure into three layers and 21 units as well as inter-layer inserted rods, which are lifted from the bottom up, and where the dismantlement is finished from upper level to lower level in different grades. The supporting system combining three-span continuous Bailey steel beam and grid frame on beam is adopted to successfully solve the difficulties in synchronous constructions of upper steel structure and lower subway. The construction accuracy of cross-layer truss satisfies the design requirements and the objective of "structure is building" is realized.
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Key words: space grid structure cross-layer truss cast steel node simulative calculation Bailey beam combined supporting system Zhengzhou East Railway Station |
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引用本文: |
王福全. 郑州东站大跨度铸钢节点空间网格结构跨层桁架施工技术[J]. 建筑技术, 2013, 44(4): 315-.
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WANG Fu-quan. CONSTRUCTION TECHNIQUE FOR CROSS-LAYER TRUSS OF WIDE-SPAN CAST STEEL SPACE GRID STRUCTURE IN ZHENGZHOU EAST RAILWAY STATION PROJECT[J]. Architecture Technology, 2013, 44(4): 315-.
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链接本文: |
http://www.jzjs.com/CN/ 或 http://www.jzjs.com/CN/Y2013/V44/I4/315 |
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