铁路重载运输条件下盖板涵加固技术  

Reinforcing technology of concrete slab culvert under heavy haul railway

作　　者：杨心怡[1] 刘吉元[1] 苏永华[1] 朱希同 

机构地区：[1]中国铁道科学研究院铁道建筑研究所,北京100081

出　　处：《铁道建筑》2015年第10期73-75,共3页Railway Engineering

基　　金：国家科技支撑计划项目(2013BAG20B00)

摘　　要：大轴重重载铁路运输以其运能大、效率高、运输成本低等优势,成为大宗货物经济高效的运输方式。本文以铁路盖板涵为研究对象,通过现场调研、计算分析研究了对钢筋混凝土盖板涵采用粘贴钢板、增大截面、局部改建框构、减小跨度、内套框构、置换框构等加固方案的加固效果,提出了大轴重重载铁路运输条件下盖板涵加固技术可选方案。Heavy haul railway with large axle loads is more appropriate for freight transportation trainloads,due to its larger transport capacity,higher efficiency and lower transportation costs.In this paper,reinforced concrete slab culvert in railway is studied through site investigation,calculation and analysis.Corresponding strengthening methods are presented including reinforcement with steel plate,increase of cross-section,local frame reconstruction,shortening of span,reinforcement with inner sleeve frame,and replacement of frame and so on.

关 键 词：重载铁路 盖板涵 加固技术 

分 类 号：U449.82[建筑科学—桥梁与隧道工程]