Rail-Mounted Strain Gauges for Tie Reaction Measurement Under Dynamic Loading [Research Results]

Details

• Creators:
  Thompson, II, Hugh B ; Alturk, Rakan ; Mishra, Debakanta
• Corporate Creators:
  United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development and Technology ; ENSCO, Inc. Applied Technology and Engineering Division ; Oklahoma State University
• Subject/TRT Terms:
  • Gage (Rails)
  • Strain gages
  • Calibration
  • Railroad ties
  • Shear strain
  • Railroad tracks
  • Wheel loads
  • Railroads tie reaction force
  • tie support condition
• Publication/ Report Number:
  RR 22-08
• Resource Type:
  Brief
• Geographical Coverage:
  United States;Pennsylvania
• Edition:
  Research Results
• Contracting Officer:
  Thompson, II, Hugh B
• Corporate Publisher:
  United States. Department of Transportation. Federal Railroad Administration
• Abstract:
  Several research and field applications have backed the crib circuit (CC) (i.e., installed between two ties) for vertical wheel load measurement. However, no studies have explored whether the tie circuit (i.e., installed on top of a tie) is valid for rail-tie interface force measurement. Thus, questions remain about its accuracy. On October 2021, the Federal Railroad Administration (FRA) tasked ENSCO Inc., and Oklahoma State University (OSU) to field-validate this approach under actual train loading. This work took place in Chambersburg, PA.
• Format:
  PDF
• Funding:
  693JJ6-18-D-000005 TO 693JJ6-18-F-000077
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/61883/dot_61883_DS1.pdf
• File Type:
  [PDF - 636.77 KB]
• Collection(s):
  Federal Railroad Administration
• Main Document Checksum:
  urn:sha-512:d3d43d8a06a9e51e812ab12e15429e4845061b453d8ef5f857671be46c21ea0be758cb0f102b1be4837f661136282c55c2a305dcdf15582b5ae6015f48e727ea