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.
Princeton UniversityDepartment of Civil Engineering
Princeton, NJ United States 08450
National Science Foundation1800 G Street, NW
Washington, DC United States 20550
Washington, DC United States 20590
- Kerr, A D
- El-Aini, Y M
- Publication Date: 1975-12
- Pagination: 43 p.
- TRT Terms: Buckling; Differential thermal analysis; Dislocation (Geology); Elasticity (Mechanics); High temperature; Rail (Railroads); Railroad tracks; Temperature gradients; Temperature measurement; Thermal stresses
- Uncontrolled Terms: Vertical displacement
- Old TRIS Terms: Elastic theory; Rail thermal stresses
- Subject Areas: Geotechnology; Railroads;
- 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