坡道连续梁桥上无缝线路纵向附加力研究  

Analysis of longitudinal mechanics behavior of continuous welded rail on continuous bridge at steep slope

作　　者：蒲建锦[1] 

机构地区：[1]铁道第三勘察设计院集团有限公司广东分公司,广东深圳518000

出　　处：《山西建筑》2017年第7期191-193,共3页Shanxi Architecture

摘　　要：以城市轨道交通中坡道上高墩大跨连续梁桥处的无缝线路为例,建立了钢轨—桥梁—墩台一体化计算模型,分析了影响连续梁桥跨长度、扣件纵向阻力、连续梁桥墩刚度的因素,分别在温度变化和制动力作用下,计算了无坡度和28.5‰坡度的连续梁桥上钢轨纵向附加力、位移及连续梁桥的桥墩受力性能,得到了一些有意义的结论。Taking the seamless rail of the high pier large-span continuous beam bridge at the steep slopes in the urban rail traffic as the example,the paper establishes the integration calculation model with the rail,bridge and abutment,analyzes the factors affecting the span length of the continuous beam bridge,fastening vertical resistance,and stiffness of the continuous beam bridge pier,and calculates the additional stress,displacement,and pier stress of the non-slope and 28. 5% slope continuous beam bridges,and achieves some meaningful conclusion.

关 键 词：城市轨道 坡道 连续梁桥 无缝线路 纵向附加力 

分 类 号：U441[建筑科学—桥梁与隧道工程]