Improved Concrete Crossties Design: Quantifying Cyclic Loading Failure Criteria

As the use of concrete crossties increases, the need to understand their performance and failure mechanisms becomes more critical. In particular, there is a need to quantify criteria for failure modes that cause crossties to be removed from service before the end of their useful life (minor cracking, etc.). The primary objective of this research project is to subject crossties to demanding loading conditions, representative of revenue service conditions, in the laboratory to determine the stress state of concrete crossties under cyclic loading. These stress states can be compared with the material properties and overall geometry requirements to determine their impact on the health of the track structure. The outcome of this work is the development of a framework for providing the rail industry quantitative metrics for classifying a tie as failed compared to the qualitative methods currently employed.

    Project

    • Status: Active
    • Contract Numbers:

      DTRT13-G-UTC52

      NURail2018-UIUC-R21

    • Sponsor Organizations:

      Office of the Assistant Secretary for Research and Technology

      University Transportation Centers Program
      Department of Transportation
      Washington, DC  United States  20590
    • Project Managers:

      Edwards, Riley

    • Principal Investigators:

      Dersch, Marcus

    • Start Date: 20180801
    • Expected Completion Date: 20191231
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01674985
    • Record Type: Research project
    • Source Agency: National University Rail Center (NURail)
    • Contract Numbers: DTRT13-G-UTC52, NURail2018-UIUC-R21
    • Files: UTC, RiP
    • Created Date: Jul 11 2018 3:29PM