| 无锡金匮大桥钢梁安装技术 |
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| 引用本文： | 蒋红卫,徐元孝.无锡金匮大桥钢梁安装技术[J].桥梁建设,2011(4). |
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| 作者姓名： | 蒋红卫 徐元孝 |
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| 作者单位： | 1. 江苏省无锡市公共工程建设中心,江苏无锡,214000
2. 中交二航局第二工程有限公司,重庆,400042 |
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| 摘 要： | 无锡金匮大桥主桥为(55+105+55)m的三跨连续钢桁梁桥,该桥采用2片主桁结构,桥面系采用整体钢箱梁结构,钢箱梁宽30 m,最大节段长14 m,重约230 t。该桥钢梁采用架桥机由两端边跨向中跨对称架设、中跨合龙的方法安装。边跨钢梁在支架上安装,利用汽车吊安装陆上钢梁,架桥机将钢梁吊至滑道上并滑移至安装位置,并利用三向千斤顶进行调整定位。中跨钢梁采用架桥机逐段悬臂拼装施工,同时在边跨进行平衡压载。跨中合龙采用千斤顶调整边支点高差,调整合龙口误差的强制合龙施工工艺。
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| 关 键 词： | 钢桁梁桥 悬臂拼装架桥 架桥机 合龙 桥梁施工 |
Erection Techniques for Steel Girders of Jinkui Bridge in Wuxi |
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| JIANG Hong-wei,XU Yuan-xiao.Erection Techniques for Steel Girders of Jinkui Bridge in Wuxi[J].Bridge Construction,2011(4). |
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| Authors: | JIANG Hong-wei XU Yuan-xiao |
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| Institution: | JIANG Hong-wei1,XU Yuan-xiao2(1.Center of Public Works Construction,Wuxi City,Jiangsu Province,Wuxi 214000,China,2.The2nd Engineering Co.,Ltd.,CCCC Second Harbor Engineering Co.,Chongqing 400042,China) |
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| Abstract: | The main bridge of the Jinkui Bridge in Wuxi is a three-span continuous steel truss girder bridge with span arrangement(55+105+55) m.The bridge employs a structure of two main trusses and the floor system of the bridge employs an integral steel box girder that is 30 m in width and has the longest girder block of 14 m,weighing about 230 t.The steel girders of the bridge were mainly erected symmetrically by overhead launching gantry from both the side spans towards the central span and the girders were closed... |
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| Keywords: | steel truss girder bridge cantilever assembling and erection of bridge overhead launching gantry closure bridge construction |
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