无缝线路课程设计

1、；. 课程名称：轨道工程设计题目： 无缝线路课程设计 院 系： 土木工程系 专 业： 詹天佑班 年 级： 2009 姓 名： 白越 学 号： 20097025 指导教师： 西南交通大学峨眉校区 2012 年 12月23日课 程 设 计 任 务 书专 业 詹天佑班 姓 名 白越 学 号 20097025 开题日期：2012年 10月1日 完成日期：2012 年11月23日题 目 无缝线路课程设计 一、设计的目的掌握轨道结构竖向受力计算及锁定轨温的确定、轨道结构强度检算、无缝线路结构计算二、设计的内容及要求.第一部分 轨道结构竖向受力计算及锁定轨温的确定1.1静力计算1.2轨道动力响应的准静态计算

2、1.3动弯矩和动反力计算1.4钢轨弯曲应力计算1.5无缝线路稳定允许温度力和允许温升计算；1.6设计锁定轨温的确定第二部分 轨道结构强度检算2.1钢轨基本应力检算2.2轨枕弯矩检算2.3道床及路基顶面应力检算；第三部分 无缝线路结构计算；3.1轨条长度及缓冲区的设计3.2伸缩区长度3.3绘制温度力分布图并标注主要位置的数值；3.4预留轨缝设计；三、指导教师评语 四、成 绩 指导教师 (签章) 年 月 日无缝线路线路设计一、 设计原始资料1、 铺设地点：锦州2、 钢轨类型：60kg/m3、 轨枕类型：I型4、 轨枕间距：1760根/km5、 扣件类型：I型6、 道床类型及肩宽：60轨肩宽40cm

3、，厚度50cm7、 钢轨接头螺栓扭矩值：60轨800N·m8、 道床纵向阻力：混凝土轨枕8.7N/mm 单根轨枕的道床纵向阻力：10000N9、 设计区最小半径：R=500m10、轨下各结构层刚度（应将胶垫、道床、路基刚度按照串联弹簧方式进行换算。轨下基础刚度：选为特重型：钢轨为350KN/cm，轨枕、道床及基床为800KN/cm11、设计最高行车速度100Km/h12、荷载组合：1机车+1车辆13、机车类型机车类型静轮重（KN）轮1至前轮中心距离（m）轮2至前轮中心距离（m）轮3至前轮中心距离（m）轮4至前轮中心距离（m）轮5至前轮中心距离（m）轮6至前轮中心距离（m）轮7至前轮中

4、心距离（m）轮8至前轮中心距离（m）构造速度Km/hDF811001.81.88.41.81.800100C621001.51.86.91.75二、无缝线路的设计计算1、轨道结构竖向受力计算及锁定轨温的确定机车通过曲线轨道的允许速度的确定：对于新建线路，通过R=500m曲线轨道时的机车允许速度可按来计算，得，DF8机车构造速度=100km/h，故取最大96.15km/h来检算各部件的强度。DF8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8.4，当轴距大于5m以上时，相邻轮子影响很小，可以不计。因此，寻找引起最大弯矩的最不利轮位时，只要用一个转向架的三个轴分别做为计算轮来求最

5、不利轮位。而且，还应注意到转向架的三个轴轮重一样，轴距亦相同，所以1、3轮引起的弯矩应当相同，只要考虑其中一个即可。这样，只要在1、2轮中找最不利轮。计算时列表进行。作用如下图：（1）计算k值I型钢筋混凝土枕：1760根钢轨支座刚度D：查表得混凝土枕、橡胶垫板重型特重型D=轨枕间距，因此： 这里新轨对水平轴的惯性矩。（2）计算分别以动1、动2为计算轮，计算，（值是根据值，查表可得）列表进行（见下表），由表中看出，动1（或动3）轮为最大，也就是最不利轮位，以它作为计算弯矩的依据 见下表：其中：=，kx为弧度值。计算轮项目轮位P(N)DF8-1DF8-2DF8-3DF8-4DF8-5DF8-6C6

6、2-1C62-2C62-3C62-4DF8-1P(N)11000011000011000011000011000011000010000010000010000010000094037.6x(mm)01800360012000138001560017100189002580027550x02.21224.424414.74816.960219.172421.015923.228131.708233.858951-0.15320.008085-5.4814E-072.74201E-082.97585E-09-1.0365E-095.04113E-111.13509E-14-2.7805E-15P

7、(N)110000-16851.7889.3452-0.06030.0030160.000327-0.00015.04113E-061.13509E-09-2.7805E-10DF8-2P(N)11000011000011000011000011000011000010000010000010000010000076296.92x(mm)18000180010200120001200013500153002220023950x2.212202.212212.535814.74814.74816.591518.803727.283829.43455-0.15321-0.15323.70382E-

8、06-5.4814E-07-5.4814E-078.63099E-097.12337E-09-1.9593E-128.52817E-14P(N)-16851.7110000-16851.70.40742-0.0603-0.06030.0008630.000712-1.9593E-078.52817E-09DF8-3P(N)11000011000011000011000011000011000010000010000010000010000097523.36x(mm)4300200008400102001200013500153002220023950x5.28472.458010.323612

9、.535814.74816.591518.803727.283829.434550.007006-0.1204415.25782E-063.70382E-06-5.4814E-078.63099E-097.12337E-09-1.9593E-128.52817E-14P(N)770.6484-13248.21100000.578360.40742-0.06030.0008630.000712-1.9593E-078.52817E-09DF8-4P(N)11000011000011000011000011000011000010000010000010000010000074828.44x(mm

10、)1080090007200018003600150033001020011950x13.273211.0618.848802.21224.42441.84354.055712.535814.686551.90915E-071.67071E-05-0.00021-0.15320.008085-0.195040.0031453.70382E-06-5.7546E-07P(N)0.0210011.837776-21.8438110000-16851.7889.3452-19504314.45370.370382-0.05755DF8-5P(N)110000110000110000110000110

11、00011000010000010000010000010000080407.19x(mm)140001220010400200001800330051001200013750x17.20614.993812.78162.45802.21224.05576.267914.74816.898753.11538E-08-4.342E-072.14659E-06-0.120441-0.15320.0031450.001925-5.4814E-072.555E-08P(N)0.003427-0.047760.236125-13248.2110000-16851.7314.4537192.4968-0.

12、054810.002555DF8-6P(N)11000011000011000011000011000011000010000010000010000010000083504.87x(mm)161001430012500410023000150033001020011950x19.786917.574715.36255.03892.826701.84354.055712.535814.68655-5.46E-102.90856E-08-2.724E-070.008217-0.074631-0.195040.0031453.70382E-06-5.7546E-07P(N)-6.006E-050.

13、003199-0.02996903.8863-8209.76110000-19504314.45370.370382-0.05755C62-1P(N)11000011000011000011000011000011000010000010000010000010000047265.16x(mm)15600138001200036001800150001800870010450x19.172416.960214.7484.42442.21221.843502.212210.692312.843052.97585E-092.74201E-08-5.4814E-070.008085-0.1532-0

14、.195041-0.15321.48974E-051.82151E-06P(N)0.0003270.003016-0.0603889.3452-16851.7-21454.4100000-15319.71.4897370.182151C62-2P(N)11000011000011000011000011000011000010000010000010000010000085178.47x(mm)1890017100153006900510033001800069008650x23.228121.015918.80378.48016.26794.05572.212208.480110.63085

15、5.04113E-11-1.0365E-097.12337E-09-0.000290.0019250.003145-0.15321-0.000291.39526E-05P(N)5.54524E-06-0.000110.000784-31.8797211.7465345.899-15319.7100000-28.98161.395261C62-3P(N)11000011000011000011000011000011000010000010000010000010000083858.03x(mm)2580024000222001380012000102008700690001750x31.708

16、229.49627.283816.960214.74812.535810.69238.480102.150751.13509E-149.25664E-14-1.9593E-122.74201E-08-5.4814E-073.70382E-061.48974E-05-0.000291-0.16115P(N)1.2486E-091.01823E-08-2.1553E-070.003016-0.06030.407421.489737-28.9816100000-16114.8C62-4P(N)110000110000110000110000110000110000100000100000100000

17、10000083886.69x(mm)27550257502395015550137501195010450865017500x33.8589531.6467529.4345519.1109516.8987514.6865512.8430510.630852.150750-2.7805E-151.34268E-148.52817E-143.54821E-092.555E-08-5.7546E-071.82151E-061.39526E-05-0.161151P(N)-3.0585E-101.47695E-099.38099E-090.000390.002811-0.06330.1821511.

18、395261-16114.8100000（3）计算静弯矩M。由上表可知，计算轮3的P=为其中的最大值，用此值来计算静弯矩。（4）计算动弯矩M。计算内燃机车运行条件下钢轨轨底弯曲应力时，速度系数为： 由计算偏载系数的公式，式中=75mm，测得A查表6-4得R时，横向水平力系数f=1.70，则为 B在直线地段上，横向水平力系数， （5）计算动弯应力 新轨截面模量则得轨底和轨头应力为：A曲线轨底动弯拉应力： 曲线轨头动弯压应力：B直线轨底动弯拉应力 直线轨头动弯压应力（6）钢轨强度检算 查表得25m长的75kg/m钢轨的温度力。对于U71钢轨，屈服极限，新轨的安全系数，因此，允许应力 A、曲线轨底

19、轨头 B、直线轨底 轨头 所以东风8型机车通过改曲线时，钢轨强度满足要求。2、混凝土轨枕强度检算 （1）计算、k值 计算I型混凝土轨枕弯矩、道床应力查表得：胶垫+道床+路基换算后的总的支撑刚度 （2）计算 列表（见下表）计算，动轮1为最大，是最不利轮位。表中，其中kx为弧度值。计算轮项目轮位P(N)DF8-1DF8-2DF8-3DF8-4DF8-5DF8-6C62-1C62-2C62-3C62-4DF8-1P(N)110000110000110000110000110000110000100000100000100000100000106323.6x(mm)018003600120001380

20、01560017100189002580027550x02.7185.43618.1220.83823.55625.82128.53938.95841.60051-0.03304-0.000381.06619E-094.53321E-10-5.9201E-118.60092E-12-4.948E-131.51584E-17-1.212E-18(N)110000-3634.58-41.85090.0001174.98654E-05-6.5121E-068.60092E-07-4.948E-081.51584E-12-1.212E-13DF8-2P(N)1100001100001100001100

21、00110000110000100000100000100000100000102542.4x(mm)18000180010200120001200013500153002220023950x2.734202.734215.493818.22818.22820.506523.240733.721836.38005-0.03391-0.0339-1.4275E-072.7969E-092.7969E-091.13058E-09-1.0201E-101.61024E-16-1.1411E-16(N)-3728.77110000-3728.77-0.01570.0003080.0003080.000

22、113-1.0201E-051.61024E-11-1.1411E-11DF8-3P(N)110000110000110000110000110000110000100000100000100000100000110259.9x(mm)4300200008400102001200013500153002220023950x4.94932.30209.668411.740213.81215.538517.610325.552227.56645-0.005230.0076651-7.6641E-05-4.5926E-071.27152E-06-1.4586E-07-1.3943E-081.0558

23、1E-11-1.1682E-13(N)-574.94843.149110000-8.43046-0.050520.139867-0.01459-0.001391.05581E-06-1.1682E-08DF8-4P(N)110000110000110000110000110000110000100000100000100000100000107181.4x(mm)1080090007200018003600150033001020011950x16.30813.5910.87202.7185.4362.2654.98315.40218.0445-1.1496E-071.72191E-06-2.

24、1177E-051-0.03304-0.000380.013372-0.00477-1.335E-07-4.0494E-10(N)-0.012650.18941-2.32951110000-3634.58-41.85091337.225-477.199-0.01335-4.0494E-05DF8-5P(N)110000110000110000110000110000110000100000100000100000100000101262.4x(mm)140001220010400200001800330051001200013750x21.1418.42215.7043.0202.7184.9

25、837.70118.1220.76256.12513E-114.94681E-09-1.507E-07-0.042521-0.03304-0.004770.0005161.06619E-095.83189E-10(N)6.73764E-060.000544-0.01658-4677.38110000-3634.58-477.19951.602670.0001075.83189E-05DF8-6P(N)110000110000110000110000110000110000100000100000100000100000106726.3x(mm)1610014300125004100230001

26、50033001020011950x24.31121.59318.8756.1913.47302.2654.98315.40218.0445-1.4214E-12-2.2381E-106.50827E-090.001851-0.0394310.013372-0.00477-1.335E-07-4.0494E-10(N)-1.5635E-07-2.4619E-050.000716203.5633-4337.31100001337.225-477.199-0.01335-4.0494E-05C62-1P(N)110000110000110000110000110000110000100000100

27、00010000010000094490.62x(mm)15600138001200036001800150001800870010450x23.55620.83818.125.4362.7182.26502.71813.13715.7795-5.9201E-114.53321E-101.06619E-09-0.00038-0.033040.0133721-0.033042.72329E-06-1.4997E-07(N)-6.5121E-064.98654E-050.000117-41.8509-3634.581470.947100000-3304.160.272329-0.015C62-2P

28、(N)11000011000011000011000011000011000010000010000010000010000096219.3x(mm)1890017100153006900510033001800069008650x28.53925.82123.10310.4197.7014.9832.718010.41913.0615-4.948E-138.60092E-12-1.2401E-10-4.1311E-050.000516-0.00477-0.033041-4.1311E-052.88017E-06(N)-5.4428E-089.46101E-07-1.3641E-05-4.54

29、41756.76294-524.918-3304.16100000-4.131060.288017C62-3P(N)11000011000011000011000011000011000010000010000010000010000097153.16x(mm)2580024000222001380012000102008700690001750x38.95836.2433.52220.83818.1215.40213.13710.41902.64251.51584E-17-1.6099E-169.67627E-164.53321E-101.06619E-09-1.335E-072.72329

30、E-06-4.1311E-051-0.02843(N)1.66742E-12-1.7709E-111.06439E-104.98654E-050.000117-0.014680.272329-42842.97C62-4P(N)11000011000011000011000011000011000010000010000010000010000097157.3x(mm)27550257502395015550137501195010450865017500x41.600538.882536.164523.480520.762518.044515.779513.06152.64250-1.212E-181.69323E-17-1.8952E-16-6.842E-115.83189E-10-4.0494E-10-1.4997E-072.88017E-06-0.028431(N)-1.3332E-131.86255E-12-2.0847E-11-7.5262E-066.41508E-05-4.4544E-05-0.0150.288017-2842.97100000 最大的（3）计算枕上动压力Rd DF8型内燃机车，计算枕上压力时，速度系数及偏载系数为： A、曲线考虑横向水平力系数，则 B