津秦客运专线连续梁-框架墩设计  

Design of Frame Piers and Continuous Girder on Tianjin-Qinhuangdao Passenger Dedicated Railway

作　　者：张春芳[1] 宋顺忱[1] 

机构地区：[1]铁道第三勘察设计院集团有限公司,天津300142

出　　处：《铁道标准设计》2011年第9期48-51,共4页Railway Standard Design

摘　　要：在日益发达的铁路桥梁建设中,由于既有地面道路及地上、地下管线错综复杂,导致桥梁小角度跨越点较多,框架墩结构由于其布置非常灵活得到了广泛的应用。目前,框架墩-简支梁在速度不超过160 km/h的有砟轨道铁路上应用较多,从设计到施工,技术比较成熟。随着客运专线的建设,桥上铺设无砟轨道具有诸多优点,但在时速350 km的无砟轨道桥梁下设置框架墩,尚属首例。结合津秦客专连续梁-框架墩的设计,介绍连续梁-框架墩体系的应用条件、构造特点和对无砟轨道的适应性。In the developing railway bridge construction,many surface and underground roads,pipielines cross railways,so more and more viaducts with small intersection angles are needed to construct.Frame piers are used widely because of their high flexibility for arrangement.At present,frame piers and simply surpported beams are used widely on ballasted track railway with the train speed less than 160km/h,and the technology of their design and construction are mature.With the development of passenger dedicated railways,advantages of unballasted track are obvious.It was for the first time to use frame piers for the unballasted track viaduct on the railway line with the speed no more than 350km/h.In this article,according to the design of frame piers and continuous girder on Tianjin-Qinhuangdao passenger dedicated railway line,the adaptability,structural characterisitics and applicability to unballasted track of frame piers and continuous girder system are introduced.

关 键 词：客运专线 连续梁-框架墩 结构分析 变形计算 

分 类 号：U443.22[建筑科学—桥梁与隧道工程]