Remaining Prestress Force in Concrete Ties Removed from Track after 25 Years [Research Results]

Details

• Creators:
  Stuart, Cameron ; Peterman, Robert J. ; Beck, B Terry
• Corporate Creators:
  John A. Volpe National Transportation Systems Center (U.S.) ; TTCI, Inc ; Precast/Prestressed Concrete Institute
• Corporate Contributors:
  United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development and Technology
• Subject/TRT Terms:
  • Concrete
  • Railroad ties
  • Rail fasteners
  • Rail transit
  • Bearing capacity
  • Bending
  • Concrete ties
  • Flexural strength
  • Pretensioning
  • Infrastructure
  More +
• Publication/ Report Number:
  RR 21-11
• Resource Type:
  Brief
• Geographical Coverage:
  United States
• Edition:
  Research Results
• Contracting Officer:
  Stuart, Cameron D
• Corporate Publisher:
  United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development, and Technology
• Abstract:
  This report highlights research conducted to determine the remaining (residual) prestress force in prestressed concrete ties that had performed well in track and were subsequently removed after 25 years of service. The team developed a new, direct tension test method to experimentally determine the residual prestress force in a concrete tie. The method used the entire tie as the test specimen rather than extrapolating the data from the response of one component, or region of the tie. This new approach minimized the effect of small measurement errors.
• Format:
  PDF
• Funding:
  DTFR53-15-C-00006
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/55987/dot_55987_DS1.pdf
• File Type:
  [PDF - 708.70 KB]
• Collection(s):
  Federal Railroad Administration
• Main Document Checksum:
  urn:sha256:59ac0e60c3fa77fcb7ac1981d88876fa8f00dcc2972e4f16f1149d3c10fd9a3c