FATIGUE STRENGTH OF STEEL WIRE FOR PRESTRESSED CONCRETE SLEEPER

This paper describes calculation of the fatigue strength of steel wire used for prestressing concrete cross ties. From the results of rotating bending fatigue tests of deformed prestressing wires and plain wires pretreated in various ways, the following conclusions were obtained: (1) Suitable deformed prestressing wires are available for concrete cross ties; (2) Some surface damage may decrease the fatigue strength of the prestressing wire (corrosion, notching and sparks, for instance); (3) JNR's present prestressing loads are sufficient. The effects of spark damage to wires are particularly critical.

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  • Corporate Authors:

    JAPANESE NATIONAL RAILWAYS

    TOKYO,   Japan 
  • Authors:
    • WATANABE, S
  • Publication Date: 1975-9

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Filing Info

  • Accession Number: 00129855
  • Record Type: Publication
  • Source Agency: JAPANESE NATIONAL RAILWAYS
  • Report/Paper Numbers: Quart Rpt.
  • Files: TRIS
  • Created Date: Mar 10 1976 12:00AM