TRACK STRUCTURE DESIGN USING MATHEMATICAL MODELS
The objective of the report is to demonstrate the use of mathematical track structure models in the development of design charts. The models have been developed in Task 1, Mathematical Modelling, of the Track Structures Research Program, Contract DOT-FR-30038. The charts should enable the optimal selection of track components and to evaluate the structural performance of existing track components in a given loading environment. The criterion for acceptable track design is that the strength of the track structure on a fatigue basis not be exceeded and the Minor's rule is used. The charts are based on arbitrarily chosen wheel-rail load magnitudes. For vertical wheel-rail loading, the loading configuration consists of eight wheel loads and corresponds to that of two adjacent trucks of two coupled 100 ton (90,720 kg) cars. For lateral wheel-rail loading, a single lateral load applied to the base of one rail is used.
- Record URL:
- Prepared for U.S. Department of Transportation, Federal Railroad Administration, Office of Research and Development, Washington, D.C.
Chicago, IL United States 60616
- So, W
- Publication Date: 1978-6
- Features: Figures; References;
- Pagination: 64 p.
- TRT Terms: Axle loads; Ballast (Railroads); Design; Loads; Mathematical models; Rail (Railroads); Rail fasteners; Railroad tracks; Rolling contact; Stresses; Structural design; Subgrade (Pavements); Track components; Wheels
- Uncontrolled Terms: Ballast; Design criteria; Lateral loads; Track design; Vertical loads
- Old TRIS Terms: Axle loadings; Rail stress; Track stress; Track structures
- Subject Areas: Design; Railroads; Vehicles and Equipment;
- Accession Number: 00179118
- Record Type: Publication
- Source Agency: Federal Railroad Administration
- Report/Paper Numbers: FRA/ORD-78/08 Final Rpt.
- Contract Numbers: DOT-FR-30038
- Files: TRIS, USDOT
- Created Date: Jul 29 1978 12:00AM