DETERMINATION OF ADMISSIBLE TEMPERATURE INCREASES TO PREVENT VERTICAL TRACK BUCKLING

An analysis is presented for the determination of the range of "safe" temperature increases in a railroad track, in order to prevent vertical buckling. A general nonlinear formulation of the problem is derived by using the theory of elasticity, the principle of virtual displacements and the variational calculus for variable matching points. In order to simplify the solution it is shown, on a closely related problem, that a number of highly nonlinear terms may be neglected without affecting the final results. The obtained nonlinear formulation for the railroad track is simplified accordingly. The resulting nonlinear equations are then solved, in closed form, and the obtained results are presented graphically.

  • Corporate Authors:

    Princeton University

    Department of Civil Engineering
    Princeton, NJ  United States  08450

    National Science Foundation

    1800 G Street, NW
    Washington, DC  United States  20550

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Kerr, A D
    • El-Aini, Y M
  • Publication Date: 1975-12

Media Info

  • Pagination: 43 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00198939
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: 75-SM-3 Tech Rpt.
  • Contract Numbers: DOT-FR-40017
  • Files: TRIS, USDOT
  • Created Date: Oct 17 1979 12:00AM