| 将军渡黄河特大桥北岸钢桁梁悬臂拼装施工技术 |
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| 引用本文： | 李二伟,冯文园.将军渡黄河特大桥北岸钢桁梁悬臂拼装施工技术[J].现代交通技术,2012,9(3):45-49. |
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| 作者姓名： | 李二伟 冯文园 |
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| 作者单位： | 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： | 将军渡黄河特大桥北岸主桥为双主桁简支钢桁梁桥，跨径布置为（5×128+99）m，针对北岸钢桁梁结构特点，采用首跨为膺架法，其它跨设置临时墩，通过龙门吊悬臂拼装，使相邻两孔临时连接成连续梁的施工技术。通过调整高差、纵横向偏移等技术使钢桁梁中线偏位、主桁高差、竖向线形等均得到较好控制。
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| 关 键 词： | 钢桁梁 悬臂拼装 施工技术 |
Construction Techniques of Cantilever Erection for Steel Truss Girder of Jiangjundu Super Large Bridge |
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| Li Erwei,Feng Wenyuan.Construction Techniques of Cantilever Erection for Steel Truss Girder of Jiangjundu Super Large Bridge[J].Modern Transportation Technology,2012,9(3):45-49. |
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| Authors: | Li Erwei Feng Wenyuan |
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| Institution: | (The First Engineering Co.Ltd. of China Railway Major Bridge Engineering Group Co.Ltd., Zhengzhou 450053, China) |
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| Abstract: | According to structural characteristics of steel truss girder of Jiangjundu super large bridge on the northern bank over Yellow river,this paper indtroduces techniques of cantilever erection of large span steel truss girder. This cantilever erection method includes four aspects：using gantry crane cross pier;using scaffoloding method at first span;forming continuous girder with the other adjacent two spans;setting temporary pier at mid-span. This techniques could provide reference for similar bridges. |
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| Keywords: | bridge engineering steel truss girder cantilever assembly construction technique |
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