DEFLECTION RESULTS FROM MOVING LOADS ON A BEAM THAT RESTS UPON AN ELASTIC FOUNDATION REACTING IN COMPRESSION

The two experimental curves shown strongly verify the theoretical appropriateness of using an elastic foundation that reacts in compression only to represent railroad track support. In comparing the improvement in accuracy gained versus the complexity of calculation though, it is suggested that only with high speed trains is any marked advantage achieved with this more accurate model. At all speeds downward deflections (maximum deflections and stresses) were nearly identical in the two models, an argument against using a newer foundation model.

• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • Torby, B J
• Publication Date: 1975-9

Media Info

• Features: References;
• Pagination: p. 738-739
• Serial:
  • ASME Journal of Applied Mechanics
  • Volume: 42
  • Issue Number: 3
  • Publisher: American Society of Mechanical Engineers

Subject/Index Terms

• TRT Terms: Deformation; Dynamic tests; High speed rail; Mathematical models; Railroad tracks; Train track dynamics
• Uncontrolled Terms: Dynamic analysis
• Old TRIS Terms: Track deformation; Track response investigations
• Subject Areas: Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00130907
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: Ser E
• Files: TRIS
• Created Date: Apr 21 1976 12:00AM