各種類型臨時鋼梁主要尺寸和適用行車條件

1、各種類型臨時鋼梁主要尺寸和適用行車條件 表 1 扣軌梁容許最大跨度 （m）層數(shù)單側鋼軌數(shù)量軌型（kg/m）單 層 鋼 軌雙 層 鋼 軌2根3根4根5根6根7根8根9根10根12根381.2/2.02.0/2.72.4/3.23.0/3.43.3/3.63.5/3.83.8/4.04.0/4.24.3/4.44.5/4.5431.4/2.22.2/3.02.8/3.43.2/3.73.5/3.93.8/4.14.1/4.34.4/4.54.6/4.74.8/4.9501.7/2.62.6/3.43.2/3.83.5/4.13.9/4.44.2/4.64.5/4.94.9/5.15.1/5.35.

2、4/5.4602.3/3.23.2/3.93.7/4.44.1/4.84.6/5.25.0/5.55.3/5.75.7/6.06.0/6.26.3/6.4注：（1）本表錄自“專橋0153鐵路橋梁搶修通用圖集”。（2）活載按前進型機車單機隨掛70 kN/m均布活載（亦按JF型機車）計算。鋼軌容許撓曲應力170 MPa。梁的撓度不超過跨度的1/300。（3）表列容許最大跨度，斜線上的限速45 km/h，斜線下的限速15 km/h。（4）軌頭磨損在59 mm時應減少跨度10%，超過9 mm時應減少20%。 表 2 工字鋼梁容許最大跨度 （m）型鋼號碼單 層熱軋普通工字鋼GB7066532a2. 0/

3、2. 83. 7/4. 64. 7/5. 75. 5/6. 2b2. 1/3. 03. 8/4. 74. 8/5. 75. 6/6. 3c2. 2/3. 03. 9/4. 74. 9/5. 85. 8/6. 536a2. 4/3. 34. 2/5. 25. 3/6. 46. 3/7. 1b2. 5/3. 34. 3/5. 45. 5/6. 56. 4/7. 3c2. 7/3. 44. 5/5. 55. 6/6. 66. 6/7. 440a3. 0/3. 64. 8/5. 96. 0/7. 27. 1/8. 0b3. 0/3. 74. 9/6. 16. 2/7. 37. 3/8. 2c3. 1/

4、3. 85. 0/6. 26. 3/7. 57. 5/8. 345a3. 4/4. 25. 6/6. 97. 0/8. 48. 4/9. 3b3. 5/4. 35. 7/7. 17. 3/8. 58. 6/9. 5c3. 6/4. 45. 9/7. 37. 5/8. 68. 8/9. 650a3. 9/4. 96. 5/8. 08. 3/9. 69. 7/10. 7b4. 0/5. 06. 6/8. 28. 4/9. 710. 0/10. 9c4. 2/5. 26. 9/8. 58. 8/10. 010. 4/11. 256a4. 5/5. 57. 4/9. 19. 4/10. 911. 2/

5、12. 2b4. 6/5. 77. 6/9. 39. 6/11. 111. 5/12. 4c4. 7/5. 87. 8/9. 59. 9/11. 311. 8/12. 663a5. 1/6. 38. 6/10. 410. 9/12. 512. 9/13. 9b5. 3/6. 58. 8/10. 811. 3/12. 813. 3/14. 3c5. 4/6. 79. 1/11. 111. 6/13. 013. 6/14. 5續(xù)上表 型鋼號碼雙 層熱軋普通工字鋼GB7066532a3. 9/4. 86. 4/7. 98. 2/9. 99. 6/11. 7b4. 0/5. 06. 7/8. 38.

6、5/10. 410. 1/12. 1c4. 2/5. 27. 0/8. 68. 8/10. 810. 5/12. 436a4. 4/5. 57. 4/9. 09. 3/11. 411. 1/13. 2b4. 6/5. 77. 7/9. 49. 8/11. 811. 6/13. 8c4. 8/5. 98. 1/9. 810. 2/12. 312. 1/14. 240a5. 0/6. 28. 4/10. 210. 7/12. 812. 6/14. 8b5. 2/6. 48. 7/10. 711. 2/13. 313. 1/15. 4c5. 4/6. 79. 1/11. 111. 6/13. 813

7、. 7/16. 045a5. 9/7. 29. 9/11. 912. 5/14. 714. 7/17. 3b6. 1/7. 610. 3/12. 413. 1/15. 315. 3/18. 0c6. 3/7. 910. 7/12. 813. 5/15. 915. 9/18. 750a6. 8/8. 411. 5/13. 714. 5/17. 017. 1/20. 0b7. 1/8. 712. 0/14. 115. 0/17. 617. 8/20. 6c7. 4/9. 012. 4/14. 615. 6/18. 318. 6/21. 256a7. 9/9. 613. 2/15. 516. 6/1

8、9. 419. 8/22. 4b8. 1/9. 913. 6/16. 017. 2/20. 020. 4/23. 0c8. 5/10. 314. 2/16. 618. 0/20. 821. 2/24. 263a9. 0/11. 115. 1/17. 819. 3/22. 122. 5/25. 8b9. 4/11. 415. 7/18. 420. 1/22. 723. 4/26. 7c9. 8/11. 816. 3/19. 120. 7/23. 424. 4/27. 6續(xù)上表型鋼號碼單    層舊規(guī)格33a2.1/3.03.8/4.74.8/5.85.6/6.4b2

9、.2/3.03.9/4.84.9/5.85.8/6.5c2.3/3.14.0/5.05.0/6.05.9/6.736a2.4/3.34.2/5.25.3/6.46.3/7.1b2.5/3.34.3/5.45.5/6.56.4/7.3c2.7/3.44.5/5.55.6/6.66.6/7.440a3.0/3.64.8/5.96.0/7.27.1/8.0b3.0/3.74.9/6.16.2/7.37.3/8.2c3.1/3.85.0/6.26.3/7.57.5/8.345a3.4/4.25.6/6.97.0/8.48.4/9.3b3.5/4.35.7/7.17.3/8.58.6/9.5c3.6/4

10、.45.9/7.37.5/8.68.8/9.650a3.9/4.96.5/8.08.3/9.69.7/10.7b4.0/5.06.6/8.28.4/9.710.0/10.9c4.2/5.26.9/8.58.8/10.010.4/11.255a4.4/5.57.3/9.09.3/10.711.1/12.0b4.5/5.67.5/9.29.5/11.011.3/12.2c4.6/5.77.7/9.49.8/11.111.6/12.463a5.0/6.18.3/10.010.5/12.012.4/13.4b5.1/6.28.5/10.310.8/12.212.7/13.6c5.2/6.48.7/10

11、.611.0/12.413.0/13.8續(xù)上表型鋼號碼雙    層舊規(guī)格33a4.0/4.96.6/8.18.4/10.29.9/11.9b4.1/5.26.9/8.58.7/10.610.3/12.4c4.3/5.47.2/8.89.1/11.110.8/12.836a4.4/5.57.4/9.09.3/11.411.1/13.2b4.6/5.77.7/9.49.8/11.811.6/13.8c4.8/5.98.1/9.810.2/12.312.1/14.240a5.0/6.28.4/10.210.7/12.812.6/14.8b5.2/6.48.7/10.71

12、1.2/13.313.1/15.4c5.4/6.79.1/11.111.6/13.813.7/16.045a5.9/7.29.9/11.912.5/14.714.7/17.3b6.1/7.610.3/12.413.1/15.315.3/18.0c6.3/7.910.7/12.813.5/15.915.9/18.750a6.8/8.411.5/13.714.5/17.017.1/20.0b7.1/8.712.0/14.115.0/17.617.8/20.6c7.4/9.012.4/14.615.6/18.318.6/21.255a7.8/9.413.0/15.316.4/19.219.5/22.

13、1b8.1/9.813.5/15.87.0/19.820.2/22.8c8.3/10.113.9/16.317.6/20.420.8/23.663a8.7/10.614.5/17.118.5/21.221.7/24.8b9.0/11.015.0/17.719.2/21.922.4/25.6c9.3/11.415.6/18.319.9/22.523.2/26.5注： （1）本表錄自“專橋0153鐵路橋梁搶修通用圖集”。（2）活載按前進型機車單機隨掛70 kN/m均布活載（含MK1及JF型機車）計算。材質A3，容許撓曲應力170 MPa。梁的撓度不超過跨度的1/400。（3）表列容許最大跨度，斜線

14、上的限速45 km/h，斜線下的限速15 km/h。 表 3 D型施工便梁主要尺寸和適用條件型號跨度（m）全長（m）縱梁位置軌底至梁底H（mm）軌頂至梁頂H（mm）縱 梁適 用 條 件中心距（mm）高度（mm）寬度（mm）直 線曲 線單線雙 線單線雙 線D1212.0612.40高位2453354 400720420a4.4R400R400a4.7低位3951854.0a4.44.21a4.7D16甲16.0816.40高位4253354 400900420a4.4R400a4.7低位5751854.0a4.44.21a4.7D2020.1020.48高位2757854 4601 200480a4.81R800a5.04中位425635a5.03低位575485a5.02最低位7253354.51a4.81R400a4.88D2424.1224.50高位3757854 4601 300480a4.81R900a5.04中位525635a5.03低位675485a5.02最低位8253354.51a4.81R400a4.94注：（1）表列R為曲線半徑（m），a為雙線間距（m），格內短橫線表示：無條件。（2）本梁按“中活載”設計，