By means of a repeated shock tester for track, the dynamic properties are studied of the test track. Test tracks were selected one on a wooden tie section and the other on a concrete tie section. There were laid 50 kg PS rails, wooden ties without tie-plates or pre-stressed concrete ties with a spacing of 60 cm. Ballast was crushed stone with a depth of 25 cm and a shoulder width of 35 cm. Before every test the ballast was tamped. To know the pressure on rails, bending stress was measured. Displacement of rail depression was calculated on the data of measurements by the velocity vibrometer. Dynamic force upon rails was calculated on the data of rail bending stress. This force exceeds the centrifugal force under 1400 to 1900 rpm and this is considered to be caused through resonance.

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    TOKYO,   Japan 
  • Authors:
    • Satoh, Y
    • Hirata, G
  • Publication Date: 1963-6

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Filing Info

  • Accession Number: 00040511
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 22 1976 12:00AM