無縫線路課程設(shè)計(jì)

1、課程名稱：軌道工程設(shè)計(jì)題目：無縫線路課程設(shè)計(jì)院 系： 土木工程系專 業(yè)：詹天佑班年 級(jí)： 2009姓 名：白越學(xué)號(hào)： 20097025 指導(dǎo)教師：西南交通大學(xué)峨眉校區(qū)2012年 12月23日課 程 設(shè) 計(jì) 任 務(wù) 書專 業(yè)詹天佑班姓 名 白越 學(xué) 號(hào)20097025 開題日期：2012年 10月1日 完成日期：2012年11月23日題 目無縫線路課程設(shè)計(jì)一、設(shè)計(jì)的目的掌握軌道結(jié)構(gòu)豎向受力計(jì)算及鎖定軌溫的確定、軌道結(jié)構(gòu)強(qiáng)度檢算、無縫線路結(jié)構(gòu)計(jì)算二、設(shè)計(jì)的內(nèi)容及要求第一部分 軌道結(jié)構(gòu)豎向受力計(jì)算及鎖定軌溫的確定1.1靜力計(jì)算1.2軌道動(dòng)力響應(yīng)的準(zhǔn)靜態(tài)計(jì)算1.3動(dòng)彎矩和動(dòng)反力計(jì)算1.4鋼軌彎曲應(yīng)力計(jì)

2、算1.5無縫線路穩(wěn)定允許溫度力和允許溫升計(jì)算；1.6設(shè)計(jì)鎖定軌溫的確定第二部分 軌道結(jié)構(gòu)強(qiáng)度檢算2.1鋼軌基本應(yīng)力檢算2.2軌枕彎矩檢算2.3道床及路基頂面應(yīng)力檢算；第三部分 無縫線路結(jié)構(gòu)計(jì)算；3.1軌條長(zhǎng)度及緩沖區(qū)的設(shè)計(jì)3.2伸縮區(qū)長(zhǎng)度3.3繪制溫度力分布圖并標(biāo)注主要位置的數(shù)值；3.4預(yù)留軌縫設(shè)計(jì)；三、指導(dǎo)教師評(píng)語四、成 績(jī)指導(dǎo)教師 (簽章) 年 月 日無縫線路線路設(shè)計(jì)一、 設(shè)計(jì)原始資料1、 鋪設(shè)地點(diǎn)：錦州2、 鋼軌類型：60kg/m3、 軌枕類型：I型4、 軌枕間距：1760根/km5、 扣件類型：I型6、 道床類型及肩寬：60軌肩寬40cm，厚度50cm7、 鋼軌接頭螺栓扭矩值：60軌8

3、00N·m8、 道床縱向阻力：混凝土軌枕8.7N/mm單根軌枕的道床縱向阻力：10000N9、 設(shè)計(jì)區(qū)最小半徑：R=500m10、軌下各結(jié)構(gòu)層剛度（應(yīng)將膠墊、道床、路基剛度按照串聯(lián)彈簧方式進(jìn)行換算。軌下基礎(chǔ)剛度：選為特重型：鋼軌為350KN/cm，軌枕、道床及基床為800KN/cm11、設(shè)計(jì)最高行車速度100Km/h12、荷載組合：1機(jī)車+1車輛13、機(jī)車類型機(jī)車類型靜輪重（KN）輪1至前輪中心距離（m）輪2至前輪中心距離（m）輪3至前輪中心距離（m）輪4至前輪中心距離（m）輪5至前輪中心距離（m）輪6至前輪中心距離（m）輪7至前輪中心距離（m）輪8至前輪中心距離（m）構(gòu)造速度Km/

4、hDF811001.81.88.41.81.800100C621001.51.86.91.75二、無縫線路的設(shè)計(jì)計(jì)算1、軌道結(jié)構(gòu)豎向受力計(jì)算及鎖定軌溫的確定機(jī)車通過曲線軌道的允許速度的確定：對(duì)于新建線路，通過R=500m曲線軌道時(shí)的機(jī)車允許速度可按來計(jì)算，得，DF8機(jī)車構(gòu)造速度=100km/h，故取最大96.15km/h來檢算各部件的強(qiáng)度。DF8機(jī)車前后有兩個(gè)轉(zhuǎn)向架，每個(gè)轉(zhuǎn)向架為三個(gè)軸，前后轉(zhuǎn)向架最近軸距為8.4，當(dāng)軸距大于5m以上時(shí)，相鄰輪子影響很小，可以不計(jì)。因此，尋找引起最大彎矩的最不利輪位時(shí)，只要用一個(gè)轉(zhuǎn)向架的三個(gè)軸分別做為計(jì)算輪來求最不利輪位。而且，還應(yīng)注意到轉(zhuǎn)向架的三個(gè)軸輪重一樣，

5、軸距亦相同，所以1、3輪引起的彎矩應(yīng)當(dāng)相同，只要考慮其中一個(gè)即可。這樣，只要在1、2輪中找最不利輪。計(jì)算時(shí)列表進(jìn)行。作用如下圖：（1）計(jì)算k值I型鋼筋混凝土枕：1760根鋼軌支座剛度D：查表得混凝土枕、橡膠墊板重型特重型D=軌枕間距，因此：這里新軌對(duì)水平軸的慣性矩。（2）計(jì)算分別以動(dòng)1、動(dòng)2為計(jì)算輪，計(jì)算，（值是根據(jù)值，查表可得）列表進(jìn)行（見下表），由表中看出，動(dòng)1（或動(dòng)3）輪為最大，也就是最不利輪位，以它作為計(jì)算彎矩的依據(jù) 見下表：其中：=，kx為弧度值。計(jì)算輪項(xiàng)目輪位P(N)DF8-1DF8-2DF8-3DF8-4DF8-5DF8-6C62-1C62-2C62-3C62-4DF8-1P(N

6、)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(N)110000-16851.7889.3452-

7、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-06-5.4814E-07-5.4814E-078.

8、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)4300200008400102001200013500153002220023950x5.28472.458010.323612.535814.74816.591518.80372

9、7.283829.434550.007006-0.1204415.25782E-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)1080090007200018003600150

10、033001020011950x13.273211.0618.848802.21224.42441.84354.055712.535814.686551.90915E-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)11000011000011000011000011000011000010000010000010000

11、010000080407.19x(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)0.003427-0.047760.236125-13248.2110000-16851.7314.4537192.4968-0.054810.002555DF8-6P(N)1100

12、0011000011000011000011000011000010000010000010000010000083504.87x(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-050.003199-0.02996903.8863-820

13、9.76110000-19504314.45370.370382-0.05755C62-1P(N)11000011000011000011000011000011000010000010000010000010000047265.16x(mm)15600138001200036001800150001800870010450x19.172416.960214.7484.42442.21221.843502.212210.692312.843052.97585E-092.74201E-08-5.4814E-070.008085-0.1532-0.195041-0.15321.48974E-051

14、.82151E-06P(N)0.0003270.003016-0.0603889.3452-16851.7-21454.4100000-15319.71.4897370.182151C62-2P(N)11000011000011000011000011000011000010000010000010000010000085178.47x(mm)1890017100153006900510033001800069008650x23.228121.015918.80378.48016.26794.05572.212208.480110.630855.04113E-11-1.0365E-097.12

15、337E-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)2580024000222001380012000102008700690001750x31.708229.49627.283816.960214.74

16、812.535810.69238.480102.150751.13509E-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)11000011000011000011000011000011000010000010000010000010000083886.69x(mm)2755025

17、7502395015550137501195010450865017500x33.8589531.6467529.4345519.1109516.8987514.6865512.8430510.630852.150750-2.7805E-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-090.000390.002811-0.06330.1821511.395261-16114.8100000（3）計(jì)算靜

18、彎矩M。由上表可知，計(jì)算輪3的P=為其中的最大值，用此值來計(jì)算靜彎矩。（4）計(jì)算動(dòng)彎矩M。計(jì)算內(nèi)燃機(jī)車運(yùn)行條件下鋼軌軌底彎曲應(yīng)力時(shí)，速度系數(shù)為：由計(jì)算偏載系數(shù)的公式，式中=75mm，測(cè)得A查表6-4得R時(shí)，橫向水平力系數(shù)f=1.70，則為 B在直線地段上，橫向水平力系數(shù)，（5）計(jì)算動(dòng)彎應(yīng)力 新軌截面模量則得軌底和軌頭應(yīng)力為：A曲線軌底動(dòng)彎拉應(yīng)力：曲線軌頭動(dòng)彎壓應(yīng)力：B直線軌底動(dòng)彎拉應(yīng)力 直線軌頭動(dòng)彎壓應(yīng)力（6）鋼軌強(qiáng)度檢算 查表得25m長(zhǎng)的75kg/m鋼軌的溫度力。對(duì)于U71鋼軌，屈服極限，新軌的安全系數(shù)，因此，允許應(yīng)力 A、曲線軌底 軌頭 B、直線軌底 軌頭 所以東風(fēng)8型機(jī)車通過改曲線時(shí)，鋼

19、軌強(qiáng)度滿足要求。2、混凝土軌枕強(qiáng)度檢算 （1）計(jì)算、k值 計(jì)算I型混凝土軌枕彎矩、道床應(yīng)力查表得：膠墊+道床+路基換算后的總的支撐剛度 （2）計(jì)算 列表（見下表）計(jì)算，動(dòng)輪1為最大，是最不利輪位。表中，其中kx為弧度值。計(jì)算輪項(xiàng)目輪位P(N)DF8-1DF8-2DF8-3DF8-4DF8-5DF8-6C62-1C62-2C62-3C62-4DF8-1P(N)110000110000110000110000110000110000100000100000100000100000106323.6x(mm)01800360012000138001560017100189002580027550x02

20、.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)110000110000110000110000110000110000100000100000100

21、000100000102542.4x(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)-3728.77110000-3728.77-0.01570.0003080.0003080.000113-1.0201E-051.61024E-11-1.1

22、411E-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-081.05581E-11-1.1682E-13(N)-574.94843

23、.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-06-2.1177E-051-0.03304-0.000380.01

24、3372-0.00477-1.335E-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)140001220010400200001800330051001200013750x21.1418.42215.7043.0202.7184.9837.70118.1220.76256.12513E-1

25、14.94681E-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)161001430012500410023000150033001020011950x24.31121.59

26、318.8756.1913.47302.2654.98315.40218.0445-1.4214E-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)11000011000011000011000011000011000010000010000010000010000094490.62x(mm)1

27、5600138001200036001800150001800870010450x23.55620.83818.125.4362.7182.26502.71813.13715.7795-5.9201E-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(N)11000011000011000011000011

28、000011000010000010000010000010000096219.3x(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-05-4.5441756.76294-524.918-3304.1610

29、0000-4.131060.288017C62-3P(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-072.72329E-06-4.1311E-051-0.02843(N)1.

30、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）計(jì)算枕上動(dòng)壓力Rd DF8型內(nèi)燃機(jī)車，計(jì)算枕上壓力時(shí)，速度系數(shù)及偏載系數(shù)為： A、曲線考慮橫向水平