| 天津海河开启桥钢箱梁架设与合龙控制技术 |
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| 引用本文： | 黄羚,张勇,仇高山.天津海河开启桥钢箱梁架设与合龙控制技术[J].桥梁建设,2011(1). |
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| 作者姓名： | 黄羚 张勇 仇高山 |
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| 作者单位： | 1. 石家庄铁道大学土木分院,河北,石家庄,050043
2. 中铁十四局集团第三工程公司,山东,兖州,272100 |
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| 摘 要： | 天津海河开启桥为一座跨径为76 m的双页立转式开启桥,针对开启桥安装精度要求高,施工期间受海河通航条件限制,提出该桥钢箱梁架设采用半支架悬拼装方案。该桥钢箱梁单侧纵向分0~5号块,薄壁空腔内与轴承座附近的钢箱梁采用有支架施工,搭设钢管型钢支架,利用架桥机配合千斤顶依次安装0~3号块;跨中部分的钢箱梁采用架桥机悬臂拼装,利用300 t驳船将4号、5号块依次浮运至航道中央,利用架桥机提吊安装,精确定位后焊接成整体。通过线形监控及独特的钢梁尾销及跨中对中销装置的安装控制方法,实现了桥梁线形与跨中锁定合龙的双重控制。
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| 关 键 词： | 开启桥 钢箱梁 安装架设 合龙 控制技术 桥梁施工 |
Control Techniques for Erection and Closure of Steel Box Girder of Tianjin Haihe River Bascule Bridge |
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| HUANG Ling,ZHANG Yong,QIU Gao-shan.Control Techniques for Erection and Closure of Steel Box Girder of Tianjin Haihe River Bascule Bridge[J].Bridge Construction,2011(1). |
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| Authors: | HUANG Ling ZHANG Yong QIU Gao-shan |
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| Institution: | HUANG Ling1,ZHANG Yong2,QIU Gao-shan2(1.School of Civil Engineering,Shijiazhuang Railway Institute,Shijiazhuang 050043,China,2.The 3rdEngineering Co.,Ltd.,China Railway Tieshisiju Civil Engineering Group,Yanzhou 272100,China) |
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| Abstract: | Tianjin Haihe River Bascule Bridge is a double-leaf vertically pivoted bridge with span length 76 m.In view of the strict precision requirements for erection of the bridge and the restriction of navigation on the Haihe River during construction,the scheme of cantilever assembling aided by part of the scaffolding was proposed for erection of the steel box girder of the bridge.Longitudinally,the steel box girder on one side was made up of blocks No.0~5.The part of the steel box girder over the thin-walled cha... |
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| Keywords: | bascule bridge steel box girder assembling and erection closure control technique bridge construction |
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