公路连续梁桥改扩建为公铁两用钢桁梁桥技术

作者:徐步齐 张文学 许乐 高奇
单位:中铁十二局集团第七工程有限公司 北京工业大学建筑工程学院
摘要:公铁两用桥是今后交通基础设施建设或改扩建中较为常见的结构形式,而目前关于这方面的设计、施工经验还不是很多。为此,以南沙港铁路鸡鸦水道公铁两用钢桁梁桥为例,从项目重难点分析,总体施工方案选择,到关键工序施工技术总结,对既有公路桥梁改扩建为公铁两用钢桁梁桥的关键施工技术以图文并茂的方式进行了较系统全面的总结。
关键词:桥梁工程公铁两用桥改扩建钢桁梁施工技术
作者简介:徐步齐,高级工程师,项目经理,E-mail:357408732@qq.com。
基金:中铁十二局集团有限公司科技立项:公铁两用连续钢桁梁施工技术研究([2017]-126-5)。 -页码-:41-45
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Reconstruction and Expansion Technology of Highway Continuous Girder Bridge to Highway-railway Steel Truss Girder Bridge
XU Buqi ZHANG Wenxue XU Le GAO Qi
(China Railway 12th Bureau Group No.7 Engineering Co.,Ltd. College of Architecture and Civil Engineering,Beijing University of Technology)
Abstract: The highway-railway combined bridge will be a common structure form in the future transportation infrastructure construction or reconstruction and expansion in the future. However,there is little experience in design and construction about highway-railway combined bridge. So,taking Jiya River Bridge in Nansha Port Railway,which is a highway-railway steel truss girder bridge as example,from the analysis of key and difficult points of the project to the selection of the overall construction plan,the key construction techniques for the reconstruction and expansion of existing highway bridges to highwayrailway steel truss girder bridges are summarized by means of the combination of pictures and text.
Keywords: bridges; highway-railway bridges; reconstruction and expansion; steel truss girders; construction
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