| 提篮式系杆拱桥施工全过程承载力分析 |
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| 引用本文： | 杨兴旺,赵雷,李乔.提篮式系杆拱桥施工全过程承载力分析[J].四川建筑科学研究,2004,30(3):120-122. |
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| 作者姓名： | 杨兴旺 赵雷 李乔 |
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| 作者单位： | 西南交通大学土木工程学院,四川,成都,610031 |
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| 基金项目： | 铁道部科技研究开发项目(99G34) |
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| 摘 要： | 针对跨度为112m的京沪高速铁路九曲河特大桥提篮式系杆拱桥的5种施工方案，考虑结构的非线性和构件的极限承载能力，计人施工过程的变形和应力的叠加效应，用包含梁和索单元的空间组合结构模型，进行了大桥的结构行为分析，着重研究了各方案在施工全过程中的结构整体及构件的承载能力问题。
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| 关 键 词： | 系杆拱桥 承载力分析 特大桥 京沪高速铁路 施工方案 极限承载能力 跨度 空间组合 施工过程 叠加效应 |
| 文章编号： | 1008-1933(2004)03-0120-03 |
| 修稿时间： | 2003年5月6日 |
Bearing capacity analysis of tied X-type arch bridge during construction |
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| YANG Xing-wang,ZHAO Lei,LI Qiao.Bearing capacity analysis of tied X-type arch bridge during construction[J].Building Science Research of Sichuan,2004,30(3):120-122. |
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| Authors: | YANG Xing-wang ZHAO Lei LI Qiao |
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| Abstract: | Being aimed at the five construction approaches of the tied X-type arch bridge over Jiuqu River on the Beijing-Shanghai high-speed railway,a 3-dimensional structural calculation model including beams and rope elements is used to analyze the structural behavior of the bridge.In the analysis,the structural nonlinearity and ultimate bearing capacity of members are considered,and the deformations during construction and the summation effect of stresses are also taken into account.The emphasis of the study is focused on the bearing capacity of whole structure and members during construction of each approach. |
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| Keywords: | arch bridge tied arch bridge X-type arch bridge construction ultimate bearing capacity |
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