无缝线路毕业设计.docx
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无缝线路毕业设计
无缝线路毕业设计
篇一:
无缝线路课程设计
课程名称:
《铁道工程》
设计题目:
无缝线路设计院系:
土木工程系专业:
铁道工程班级:
学号:
姓名:
指导教师:
西南交通大学峨眉校区
20XX年6月3日
课程设计任务书
专业铁道工程姓名学号20开题日期:
20XX年5月6日完成日期:
20XX年6月3日
一、设计的目的
通过本次设计,让学生初步掌握无缝线路设计的设计步骤、方法及具体的计算过程。
培养从事无缝线路方面的设计能力
二、设计的内容
按照教学班名单,选择自己的设计数据,完成各自要求的无缝线路计算内容。
1、锁定轨温2、伸缩区长度3、预留轨缝4、道床及路基面强度检算三、设计要求:
条件的基本要求。
三、指导教师评语
四、成绩:
指导教师签章)
年月日
目录
一、设计原始资料..............................................................................................1
(一)轨道条件..........................................................................................1
(二)运营条件..........................................................................................1二、确定正线轨道类型......................................................................................1三、强度计算......................................................................................................1
(一)轨道条件..........................................................................................1
1.计算k值........................................................................................12.
计算?
P?
....................................................................................2
3.计算静弯矩M0.............................................................................24.计算动弯矩Md.............................................................................25.
计算动弯应力?
jd,?
gd..................................................................2
6.钢轨强度检算................................................................................3
(二)混凝土枕强度检算..........................................................................3
1.计算k值........................................................................................32.
计算?
P?
....................................................................................3
3.计算枕上动压力Rd......................................................................44.轨枕弯矩计算................................................................................4(三)道床顶面强度检算..........................................................................5(四)路基顶面强度检算..........................................................................5四、无缝线路结构计算参数..............................................................................6
(一)无缝线路结构计算参数..................................................................6
(二)无缝线路稳定性条件计算..............................................................6
1.试算曲线地段l值.........................................................................62.求PN、[P].....................................................................................73.试算直线地段l值.........................................................................8(三)无缝线路类型:
..............................................................................91.曲线地段........................................................................................92.直线地段........................................................................................9
五、设计锁定轨温..............................................................................................9
1.曲线地段........................................................................................92.直线地段......................................................................................10
六、伸缩区长度l的计算.................................................................................10
1.曲线地段......................................................................................102.直线地段......................................................................................10
七、施工预留轨缝............................................................................................11
1.曲线地段......................................................................................112.直线地段......................................................................................11
(二)缓冲轨间预留轨缝........................................................................11
1.曲线地段......................................................................................112.直线地段......................................................................................12(三)长钢轨端部接头............................................................................12
1.曲线地段......................................................................................122.直线地段......................................................................................13(四)缓冲轨间接头预留轨缝................................................................13
1.曲线地段......................................................................................132.直线地段......................................................................................13(五)长轨轨端接头预留轨缝................................................................13
1.曲线地段......................................................................................132.直线地段......................................................................................13(六)计算结果汇总................................................................................13
1.曲线地段......................................................................................132.直线地段......................................................................................14
无缝线路设计
一、设计原始资料
(一)轨道条件
铺设地点:
洛阳
轨道类型:
P60?
U74
设计区段最小半径:
1200m
(二)运营条件机车类型:
ND5车辆类型:
C62
二、确定正线轨道类型无缝线路
三、强度计算
(一)轨道条件
ND5机车前后有两个转向架,每个转向架为三个轴,前后转向架最近轴距为8.2m。
设计两个机车挂一个车厢,共16个轮轴。
1.计算k值
S-2型钢筋混凝土枕:
1840根∕km钢轨支座刚度D:
检算钢轨42500N/mm
1000000
?
543.5mm,因此:
轨枕间距a?
1840
D42500u?
?
?
78.2MPa
a543.5
篇二:
线路大修、铁路
线路大修与铁路无缝线路设计
TheDesignofTrackRenewalandCWR
届土木工程学院专业学号学生姓名指导教师
完成日期20XX年月日
摘要
无缝线路是铁路现代化标志之一,它具有行车平稳,旅客舒适,同时机车车辆和轨道的维修费用低,使用寿命长等优点。
随着线路客货运量和行车速度的不断提高,列车轴重的增加,无缝线路已成为高速、重载铁道的必选轨道结构,也是我国铁路线路的主要发展方向。
线路经过长期运营,线路平纵断面会发生变化。
因此,要对现有的平纵断面进行勘测,并根据勘测资料,对线路平纵断面进行改善设计。
本设计利用AutoCAD及Excel,对线路大修地段进行了平面、纵断面改善设计,并绘制了的线路大修纵断面改善设计图;通过对轨道结构类型选择、轨道强度及稳定性检算,进而对路基上无缝线路进行设计;通过计算桥上无缝线路钢轨伸缩附加力和挠曲附加力,设计了一座中跨钢桥上的无缝线路,并绘制了无缝线路长轨节布置图。
最后对线路大修工作作了专题研究。
关键词:
线路大修无缝线路轨道强度稳定性
Abstract
CWRisonehallmarkoftherailwaymodernization,ithassomeadvantagessuchassmoothrunning,xxfortableandlengthofservicelife.Withtheincreasingofdrivingspeed,passengercapacityandcargocarryingcapacity,andincreasingofaxialload,CWRhasbeenafirstlychosen-tractconstructionofhigh-speedandheavy-loadtrack,sointerregionalCWRhasbeentrendofrailtrackdevelopmentinChina.Lineafterlong-termoperation,lineprofilewillchange.Therefore,theexistingprofilehavebeeninvestigated,underinvestigation,thelineprofileistoimprove.
Thisprojectimprovesthetrack’splanandprofiledesignoftrackrenewalontherailwaywiththehelpofAutoCADandExcel,moreover,itdrawstheplanoftherailway’sprofileimproveddesign;bychoosingthetrack’sstyle;checkingthetrack’sstrengthandstability,thendesignstheCWRontheroadbed,bycalculatingexpansionforcesandflexibilityforcesintherailsonthebridge,designingtheCWRonamediumspansteelbridge,anditdrawstheplanoflongsectionoftracklayoutofCWR.Finallytheworkoftrackrenewaldoneaspecialstudy.
Keywords:
trackrenewalCWRtrackstrengthstability
目录
第1章绪论·······················································································································11.1线路大修···················································································································11.1.1概述····················································································································11.1.2设计内容············································································································11.2铁路无缝线路···········································································································21.2.1概述····················································································································21.2.2路基上无缝线路································································································31.2.3桥上无缝线路····································································································3第2章线路大修平面设计·······························································································42.1概述···························································································································42.2既有曲线渐伸线长度计算·······················································································62.3设计曲线渐伸线长度计算·······················································································72.4拨距计算·················································································································10第3章线路大修纵断面设计·························································································173.1纵断面设计的特点及原则·····················································································173.1.1设计特点··········································································································173.1.2设计原则··········································································································173.2纵断面设计技术条件·····························································································173.3纵断面设计方法·····································································································183.3.1纵断面设计步骤······························································································183.3.2设计纵断面······································································································193.4原始资料·····