| 重庆粉房湾大跨度双层桁架桥制作与安装技术 |
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| 引用本文： | 王宏,戴立先,陈华周,陈韬,张志伟,何鲁清,黄胜,严晓霞,丁瑞平. 重庆粉房湾大跨度双层桁架桥制作与安装技术[J]. 施工技术, 2012, 41(14): 60-65,146 |
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| 作者姓名： | 王宏 戴立先 陈华周 陈韬 张志伟 何鲁清 黄胜 严晓霞 丁瑞平 |
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| 作者单位： | 中建钢构有限公司,广东深圳,518040 |
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| 摘 要： | 重庆粉房湾大桥主桥采用桁架和正交异性桥面板组合体系,其具有结构新颖、栓焊结合、锚箱独特等结构特点,以及跨度大、双层桥面、塔梁交叉作业、工期紧等安装特点。通过研究,采取了针对性的解决措施。主桥制作时,将钢桥阶段的构件合理拆解成小制作单元,按照"单元制作,阶段成型"的方法。重点介绍了钢桁梁制作、桥面块体制作、焊接变形控制及焊缝抗疲劳性能等制作技术,及顶推滑移、对称悬拼等安装技术。
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| 关 键 词： | 桥梁工程 桁架 焊接 滑移 安装 |
Fabrication and Installation Technology of Large-span Double-deck Trussed Bridge in Chongqing Fenfangwan |
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| Wang Hong , Dai Lixian , Chen Huazhou , Chen Tao , Zhang Zhiwei , He Luqing , Huang Sheng , Yan Xiaoxia , Ding Ruiping. Fabrication and Installation Technology of Large-span Double-deck Trussed Bridge in Chongqing Fenfangwan[J]. Construction Technology, 2012, 41(14): 60-65,146 |
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| Authors: | Wang Hong Dai Lixian Chen Huazhou Chen Tao Zhang Zhiwei He Luqing Huang Sheng Yan Xiaoxia Ding Ruiping |
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| Affiliation: | (China Construction Steel Structure Company,Shenzhen,Guangdong 518040,China) |
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| Abstract: | The main bridge applies composite system of truss and orthotropic decks in Chongqing Fenfangwan.It has structural characteristics of novel structure,combination of bolts and welding and special anchor box,as well as the installation characteristics of large-span,double decks,cross-wording of tower girder and tight period.By research,corresponding solving measures are put forward.During construction of main bridge,the components of steel structures are divided into small segments which are accord to fabrication manufacture by segment and stage molding.The fabrication technologies of steel truss girder,deck blocks,control of welding deformation and performance of joint anti-fatigue,as well as the installation technologies of incremental launching sliding and symmetric assembly are introduced in detail. |
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| Keywords: | bridges trusses welding sliding installation |
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