Study behavior of track in bridge transition zones

UKY Project Information


NuRail Project IDNURAIL2015-UKY-R09
Project TitleStudy behavior of track in bridge transition zones
UniversityUniversity of Kentucky
Project ManagerSouleyrette
Principal InvestigatorJerry Rose
PI Contact Information
Funding Source(s) and Amounts Provided (by each agency or organization)
Total Project Cost$
Agency ID or Contract NumberDTRT12-G-UTC18 (Grant 1)
Start Date2015-02-01
End Date2016-03-31
Location
Brief Description of Research ProjectThe overall objective is to develop bridge transition designs to minimize transient differential movement within the transition zone. The first part of the project is to develop the technology for using miniature accelerometers, high-speed video camera, and imbedded pressure cells to evaluate changes in track behavior at transition zones from open track to bridge structures. Task 1: Use the accelerometers and video to evaluate track deflection and movement at bridge approaches exhibiting adequate and poor performances. Task 2: Analysis of data derived from task 1. We will also ascertain pressure distributions and magnitudes at the tie/ballast interface from various combinations of wheel loads, train speeds, and ballast/track conditions. The objective of this part of the project is to determine relative effects of the factors on pressure distributions along track having both adequate and poor support. Task 3: Preliminary tests will be conducted on trackage of TTI Railroad, and proto-type laboratory tests will be conducted at the University of Tennessee test track facility. Task 4: Analysis of data derived from task 3.
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Completedyes
Final ReportNURail2015-UKY-R09-combined1.pdf