Analysis for lateral deflection of railroad track under quasi-static loading

Details

• Alternative Title:
  Proceedings of the ASME 2013 Rail Transportation Division Fall Technical Conference
• Creators:
  Jeong, David Y.
• Corporate Creators:
  John A. Volpe National Transportation Systems Center (U.S.)
• Corporate Contributors:
  United States. Department of Transportation. Federal Railroad Administration. Office of Research and Development
• Subject/TRT Terms:
  • Deflection tests
  • Rail (Railroads)
  • Railroad ties
  • Concrete ties
  • Wood ties
  • Fourier analysis
  • Railroad tracks
  • Wheel loads
  • Track shift
  • Lateral deflection
  More +
• Publication/ Report Number:
  RTDF2013-4710
• Resource Type:
  Proceedings
• Geographical Coverage:
  United States
• Corporate Publisher:
  American Society of Mechanical Engineers
• Abstract:
  This paper describes analyses to examine the lateral ; deflection of railroad track subjected to quasi-static loading. ; Rails are assumed to behave as beams in bending. Movement ; of the track in the lateral plane is constrained by idealized ; resistance characteristics, while movement in the vertical plane ; is resisted by a continuous, linear and elastic foundation. These ; analyses are based on solving the ordinary differential equations ; for beam deflections. In certain cases, convenient mathematical ; expressions may be used to represent idealized lateral resistance ; characteristics and derive closed-form equations to relate lateral ; force as a function of track lateral deflection. However, in ; general, the idealized lateral resistance characteristic may be ; nonlinear, in which case numerical methods are required to ; examine the lateral load versus track lateral deflection behavior. ; In these general cases, a Fourier series technique is used to ; solve the governing equations numerically. ; The analysis of track lateral deflection subjected to quasistatic ; loads may be applied to examine track shift. For ; example, lateral resistance of track may be measured using ; Track Lateral Pull Tests (TLPT). The Fourier method is also ; used to examine the relationship between lateral and vertical ; wheel loads and track lateral shift.
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• Format:
  PDF
• Funding:
  RR19A2/LTC41
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/10105/dot_10105_DS1.pdf
• File Type:
  [PDF - 1.38 MB]
• Collection(s):
  Volpe Center
• Main Document Checksum:
  urn:sha256:2be0806b3b5c653e8c13d9914e97756fda762a3aedb9c71d2eacc7c94672cf89