LATERAL BUCKLING OF TRACK

The stability of this track against lateral buckling is afforded by flexural resistance of the track frame consisting of rails and sleepers and the ballast resistance. An attempt has been made to analyse the resistance offered by sleeper fastenings and represent the same in terms of virtual forces acting on the rails. The energy method has been used for calculating the buckling force, the shape of buckled track has been assumed as a triangle with elastic hinges at the ends. The lateral ballast resistance has been assumed to be constant irrespective of the deflection of buckled track. The present method is simple in calculation and can easily take into account the change in buckling load due to partial or complete loss of lateral ballast resistance of a few sleepers. The effect of various maintenance practices as per Indian Railways Long welded Rails Manual on the safety margin against lateral buckling has also been calculated.

• Corporate Authors:

  International Railway Congress Association

  17-21 rue de Louvrain
  1000 Brussels,   Belgium 
• Authors:
  • Vaish, V K
• Publication Date: 1974-6

Media Info

• Features: References;
• Pagination: p. 437-450
• Serial:
  • RAIL INTERNATIONAL
  • Issue Number: N6

Subject/Index Terms

• TRT Terms: Buckling; Mechanical stability; Railroad tracks; Soil stabilization; Stabilized materials; Structural design; Track ballast
• Uncontrolled Terms: Stabilization; Track design; Track stability
• Old TRIS Terms: Ballast stabilization
• Subject Areas: Geotechnology; Railroads;

Filing Info

• Accession Number: 00072706
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Jan 16 1976 12:00AM