| 郑州黄河公铁两用桥主桥第2联悬拼施工分析 |
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| 引用本文： | 陈淮,李杰,宋洪喜,李谊修.郑州黄河公铁两用桥主桥第2联悬拼施工分析[J].桥梁建设,2011(6). |
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| 作者姓名： | 陈淮 李杰 宋洪喜 李谊修 |
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| 作者单位： | 1. 郑州大学土木工程学院,河南 郑州,450001
2. 中铁大桥局集团第一工程有限公司,河南 郑州,450053 |
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| 摘 要： | 为了评定郑州黄河公铁两用桥主桥第2联连续钢桁梁悬拼施工方案的可行性,采用有限元软件MIDAS Civil建立该桥空间有限元计算模型.根据施工方案将钢桁梁悬臂拼装架设施工过程划分为9个施工阶段,分别对各施工阶段进行施工过程仿真分析,得到各个施工阶段对应的桥梁变形及杆件的应力.计算结果表明,郑州黄河公铁两用桥主桥第2联采用悬拼施工时,钢桁梁的变形值较小、各杆件的应力小于材料屈服强度,满足桥梁施工规范要求,结构处于安全的受力状态,该施工方案可行.
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| 关 键 词： | 公路铁路两用桥 连续梁 桁梁 悬臂拼装架桥 施工 有限元法 变形 应力 |
Analysis of Cantilever Assembling and Erection of the 2nd Unit Continuous Steel Truss Girder of Main Bridge of Zhengzhou Huanghe River Rail-cum-Road Bridge |
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| CHEN Huai
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LI Jie
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SONG Hong-xi
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LI Yi-xiui.Analysis of Cantilever Assembling and Erection of the 2nd Unit Continuous Steel Truss Girder of Main Bridge of Zhengzhou Huanghe River Rail-cum-Road Bridge[J].Bridge Construction,2011(6). |
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| Authors: | CHEN Huai LI Jie SONG Hong-xi LI Yi-xiui |
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| Institution: | CHEN Huai1,LI Jie1,SONG Hong-xi2,LI Yi-xiu1(1.School of Civil Engineering,Zhengzhou University,Zhengzhou 450001,China,2.The 1st Engineering Co.,Ltd.,China Railway Major Bridge Engineering Group,Zhengzhou 450053,China) |
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| Abstract: | To evaluate the feasibility of the construction scheme for cantilever assembling and erection of the 2nd unit continuous steel truss girder of the main bridge of Zhengzhou Huanghe River Rail-cum-Road Bridge,the software MIDAS Civil was used to build the spatial finite element calculation model for the bridge.In accordance with the construction scheme,the whole process of the cantilever assembling and erection of the truss girder was divided into 9 construction stages,the construction process simulation anal... |
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| Keywords: | rail-cum-road bridge continuous girder truss girder cantilever assembling and erection of bridge construction finite element method deformation stress |
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