| 郑焦城际黄河桥钢桁梁架设关键技术 |
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| 引用本文： | 马永强.郑焦城际黄河桥钢桁梁架设关键技术[J].铁道建筑,2019(8):65-67. |
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| 作者姓名： | 马永强 |
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| 作者单位： | 中国铁路总公司工程监督局 |
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| 摘 要： | 结合钢梁结构形式、安全风险、成本投入、工期等因素对郑州-焦作城际铁路黄河桥主桥钢梁架设方案进行研究。结合原设计指导性施工方案,提出了顶推与悬拼施工相组合,单联双跨无导梁长距离顶推的施工技术方案。对工程措施、工艺工法等关键技术进行了创新性探索,利用MIDAS软件对施工全过程进行了仿真模拟分析,对大型临时设施进行了优化,缩短了工期约4个月。
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| 关 键 词： | 铁路桥梁 无导梁顶推 连续钢桁梁 四线铁路 黄河大桥 顶推与悬拼组合 |
Key Technologies for Erection of Steel Truss Girder of Zhengzhou-Jiaozuo Intercity Yellow River Bridge |
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| MA Yongqiang.Key Technologies for Erection of Steel Truss Girder of Zhengzhou-Jiaozuo Intercity Yellow River Bridge[J].Railway Engineering,2019(8):65-67. |
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| Authors: | MA Yongqiang |
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| Institution: | (Project Supervision Bureau,CHINA RAILWAY,Beijing 100844,China) |
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| Abstract: | The erection scheme for steel truss girder of Zhengzhou-Jiaozuo Intercity Yellow River Bridge was studied by combining steel truss structural style,security risk,cost input and construction duration.Combining with the original design instructional construction scheme,the combination of pushing and cantilever assembly construction and construction technical scheme of single module double-span non-guide beam long distance pushing was proposed.The key technologies such as engineering measures and construction methods were innovatively explored.the whole construction process simulation analysis was carried out by Midas software.The large temporary facilities were improved.The construction period was shortened by 4 monthes. |
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| Keywords: | Railway bridge Pushing without guide beam Continuous steel truss girder Four-lines railway Yellow river bridge Combination of pushing and cantilever assembly |
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