Technical Reports

Rail Neutral Temperature Test on CSX

  • 21
  • Sep
  • 1990
AUTHOR: D. R. Ahlbeck, J. M. Tuten
OFFICE: RPD
REPORT NUMBER: FRA/ORD-90/11
SUBJECT: Rail and Infrastructure Integrity
KEYWORDS: track stability, longitudinal load
ABSTRACT: Tests were conducted on CSX wood-tie track to determine the long-term stability of track in the context of rail neutral temperature. Two test sites were chosen by the FRA and CSX in Georgia: one a tangent section of high-tonnage (50 mgt/year) track north of Carterville, Georgia, and the second a 6-degree curve on grade just south of Manchester, Georgia. Each test section was instrumented over a 1600 ft section with 15 pairs of strain gage and thermocouole transducers, measuring rail longitudinal stress (load) and rail temperature. In addition, surveyor's benchmarks were set in beside the track to monitor the dimensional stability of the track. Tests were conducted over a 20-month period at the tangent section, and a 17-month period at the curved section.

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