厦深铁路韩江特大桥道岔区变宽度大跨连续梁总体设计  

Overall Design of Variable Width Large-span Continuous Beam in Turnout Area of Hanjiang Bridge for Xiamen-Shenzhen Railway

作　　者：姚峻生[1] 许智焰[1] 任伟[1] 陈列[1] 

机构地区：[1]中铁二院工程集团有限责任公司,成都610031

出　　处：《铁道工程学报》2008年第2期43-46,共4页Journal of Railway Engineering Society

摘　　要：研究目的:随着我国客运专线铁路的建设发展,受车站布置的影响,跨区间无缝线路道岔上桥已不可避免。本文从桥面布置、结构形式和施工方案3个方面,对设于道岔区的厦深铁路韩江特大桥主跨(48+3×80+48)m变宽度有砟轨道连续梁桥进行设计研究。研究结果:通过大跨变宽度连续梁有限元分析计算,梁部各项指标均满足桥梁规范及轨道专业要求,设计的施工方案也是切实可行的。韩江桥满足了车站布置和通航、防洪需要,在大跨度预应力混凝土连续梁桥上设置高速无缝道岔属于国内首次,也是我国客运专线建设中又一关键技术的突破和创新。Research purposes： With the development of passenger dedicated line in our country, it is inevitable to install the turnout on the bridge due to the layout of stations. The researches are done in this paper on the design of the ballast track variable width continuous beam structure in the turnout area of Hanjiang Major Bridge with main spans （48 ＋3 × 80 ＋ 48m）of Xiamen- Shenzhen railway from areas of bridge deck layout, structure style and construction program. Research results： Through making analyses of large - span variable width continuous beam with finite element method, all indexes meet the standards for bridge and track, so Hanjiang Major Bridge satisfies the demands of station layout, navigation and flood protection. This is the first time for China to install the high -speed gapless turnout on the large - span PC continuous beam bridge, which is a new key breakthrough and innovation in technology for passenger dedicated line in China.

关 键 词：高速铁路 道岔区 变宽度 连续梁 总体设计 

分 类 号：U448.215[建筑科学—桥梁与隧道工程]