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Laboratory test standards for assessment of rail fastening system performance

Laboratory test standards for assessment of rail fastening system performance

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Laboratory test standards for assessment of rail fastening system performance

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  1. Laboratory test standards for assessment of rail fastening system performance David Rhodes, PhD - Pandrol Ltd., UK Bob Coats, P.E. - Pandrol USA

  2. Rail Fastening System Qualification Tests Europe – CEN (EN 13481-2) Japan – Railway Technical Research Institute (RTRI) North America – AREMA (Ch. 30) Global Influence (Australia, Africa + others)

  3. Electrical Testing

  4. Electrical Test Requirements CEN: 5 kΩ Resistance minimum After water spray, corrected for resistivity AREMA: 10 kΩ Impedance minimum After submerged soak

  5. Clamping Force (of rail clips)

  6. Determination of Clamping Force BS EN 13146-7:2002

  7. Longitudinal Restraint

  8. Determination of Longitudinal Rail Restraint BS EN 13146-1:2002

  9. Longitudinal Restraint CEN: Pull to slip, 7 kN (1,574 lb.) minimum AREMA: 2,400 lb. (10.7 kN) without slip

  10. Vertical Stiffness

  11. Determination of Vertical Stiffness BS EN 13146-4:2002

  12. Determination of Attenuation of Impact loads EN 13146-3:2002

  13. Torsion

  14. Determination of Torsional Resistance BS EN 13146-2:2002

  15. Repeated Load Test

  16. Repeated Load Test - Purpose

  17. Repeated Load Test – Track Data

  18. Goal: Match Repeated Load Test to Rail Life

  19. 136RE 20kip Lateral LoadTypical Rail Clip Loads

  20. 136RE 20kip Lateral LoadTypical Rail Clip Loads

  21. 136RE 20kip Lateral LoadTypical Rail Clip Loads

  22. Instructions for the Cyclic Loading on an Assembly EN 13146-4:2002

  23. Instructions for the Cyclic Loading on an Assembly EN 13146-4:2002

  24. Repeated Load test to RTRI Standards (Japan)

  25. Laboratory test standards for assessment of rail fastening system performance David Rhodes, PhD - Pandrol Ltd., UK Bob Coats, P.E. - Pandrol USA