LONGITUDINAL FORCES IN RAILROAD TRACK

The work is devoted to the theory of design computations for track subjected to thermal and creep forces. The theory of longitudinal forces and displacements arising in continuous welded rail (CWR) track due to temperature changes is mathematically developed. A description of results of experimental investigations of the operation of CWR track is given, with the subsequent determination of parameters and functions which characterize the behavior of the track under the influence of temperature changes. Results of investigations of longitudinal forces in CWR track resulting from moving trains are presented. The work contains an investigation of railroad track stability. The problem is solved in a nonlinear formulation, under assumption that the rail is subjected to passive loads without any restrictions on the dependence of these quantities on the corresponding displacements.

• Record URL:
  • https://railroads.dot.gov/elibrary/longitudinal-forces-railroad-track
• 
• Supplemental Notes:
  • Trans. of mono. Centralny Nauchno-Isslodovatelski Institut Inzhenerov Zheleznodorozhogo Transporta, n.p. 1967, by M. Yanowitch.
• Corporate Authors:

  Federal Railroad Administration

  Office of Research and Development, 1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Kogan, A Y
• Publication Date: 1967

Media Info

• Media Type: Digital/other
• Pagination: 218 p.

Subject/Index Terms

• TRT Terms: Calculation; Creep properties; Design; Differential equations; Dislocation (Geology); Dynamic loads; Force; Mathematical models; Mechanical relaxation; Railroad tracks; Railroads; Stability (Mechanics); Stresses; Structural design; Temperature; Theory; Thermal stresses; Train track dynamics; Translations; Welded rail
• Uncontrolled Terms: Computation; Design criteria; Dynamic response; Track design; Track stability
• Geographic Terms: Former Soviet Union
• Old TRIS Terms: Track response investigations; Track stress
• Subject Areas: Design; Railroads;

Filing Info

• Accession Number: 00133411
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FRA/ORD-76-11
• Files: NTIS, TRIS, USDOT
• Created Date: Jul 13 1977 12:00AM