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摘要：无缝线路现在是铁路现代化一项标志，它的优点有：行驶平缓，行驶体验舒适，以及车辆和轨道的文修保养费用低，使用寿命长。随着客运和货运的交通和车辆速度越来越高，提高车辆轴重，无缝线已成为高速铁路轨道结构的第一选择，对中国铁路发展的主要方向。线路经历长期运营后，线路平纵断面会发生损耗。所以，要对现有的平纵断面进行测量，依照测量资料，对线路平纵断面进行改造设计。
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本设计通过上海地区典型气候条件下的区间既有线路改造为无缝线路，利用Auto CAD和Excel，对线路大修地区进行了平面、纵断面改造设计，并且绘制了的线路大修纵断面改造设计图；通过对轨道结构的选型，采用C语言程序对轨道强度及稳定性检算，从而对路基上无缝线路进行设计改造；通过计算桥上无缝线路钢轨伸缩附加力和挠曲附加力，设计了一座上承式钢板梁桥上的无缝线路，并绘制了无缝线路长轨节布置图。20569
关键词： 线路大修；无缝线路；轨道强度；稳定性
CWR transformation design of weather conditions in East of China
Abstract: CWR is a hallmark of the railway modernization, it has some advantages such as smooth running, comfortable and length of service life. With the increasing of driving speed, passenger capacity and cargo carrying capacity, and increasing of axial load, CWR has been a firstly chosen-tract construction of high-speed and heavy-load track, so interregional CWR has been trend of rail track development in China. Line after long-term operation, line profile will change. Therefore, the existing profile have been investigated, under investigation, the line profile is to improve.
This project through the interval of typical climate condition in Shanghai and take the Interval existing line transformed into a seamless line.Improves the track’s plan and profile design of track renewal on the railway with the help of Auto CAD and Excel, moreover, it draws the plan of the railway’s profile improved design; by choosing the track’s style; checking the track’s strength and stability with the help of C-Free, then designs the CWR on the roadbed, by calculating expansion forces and flexibility forces in the rails on the bridge, designing the CWR on a deck steel plate girder bridge, and it draws the plan of long section of track layout of CWR. Finally the work of track renewal done a special study.
Keywords: track renewal ;CWR ;track strength;stability
目录
1 绪论 1
1.1 概述 1
1.2 设计资料 1
1.3 设计目的和意义 1
1.4 国内外研究现状与水平 2
1.5 设计要求和内容 3
2 线路大修平纵横面设计 4
2.1 平面设计 4
2.1.1 设计原则 4
2.1.2 计算结果 5
2.2 纵断面设计 5
2.2.1 设计原则 6
2.2.2 纵断面设计技术条件 6
2.2.3 纵断面设计步骤 7
2.2.4 设计纵断面 8
2.2.5 竖曲线设计 9
2.2.6 原始资料 11
2.2.6 设计数据及计算结果 13
2.3 横断面设计 16
2.3.1 道床设计 16
2.3.2 外轨超高计算 16
2.4 小结 17
3 轨道的强度计算 18
3.2 钢轨强度检算 18
3.2.1 客运机车韶山I型钢轨强度检算 19
3.2.2 混凝土轨枕计算 22
3.2.3 道床顶面应力计算 24
3.2.4 路基面应力计算 24