Efficient and Cost-effective Rating of Critical Members of Steel Truss Railroad Bridges Supported by Field Test Data (1.21)

With the current rate of infrastructure ageing, the railroad bridges have been placed in the second plan for immediate replacement. However, highway and energy resources have shown a great need for prioritized capital investment. This research aims to establish a procedure to evaluate old steel truss bridges, using field data from the 21st-century measuring equipment. The proposed project will develop a systematic framework to apply analytical and experimental field-testing techniques to rate of critical members of truss railroad bridges using state-of-art equipment, such as 3D Laser Scan (3dLS) and Laser Doppler Vibrometers (LDV). First, the research team will work closely with New England’s Departments of Transportation (DOTs) and railroad companies to identify poorly rated bridges in the New England region, critical members/connections and possible structural failure modes. Second, an efficient and uniform method to estimate the maximum load and capacity of representative critical members of the selected type of truss bridges will be developed and rated based on the filed measured data. Similarly, the current filed measurement technique of section properties loss and critical connection will be enhanced with 21st-century technology.

• Record URL:
  https://tidc.umaine.edu/tidc_project/1-21-uconn/

Language

• English

Project

• Status: Active
• Funding: $170343
• Contract Numbers:

  69A3551847101

• Sponsor Organizations:

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Managing Organizations:

  Transportation Infrastructure Durability Center

  University of Maine
  Orono, ME  United States  04469

  Office of the Assistant Secretary for Research and Technology

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

  Dunn, Denise

• Performing Organizations:

  Transportation Infrastructure Durability Center

  University of Maine
  Orono, ME  United States  04469
• Principal Investigators:

  Malla, Ramesh

• Start Date: 20231001
• Expected Completion Date: 20250630
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers Program

Subject/Index Terms

• TRT Terms: Bearing capacity; Field tests; Load factor; Railroad bridges; Steel bridges; Truss bridges
• Subject Areas: Bridges and other structures; Maintenance and Preservation; Planning and Forecasting; Railroads;

Filing Info

• Accession Number: 01917497
• Record Type: Research project
• Source Agency: Transportation Infrastructure Durability Center
• Contract Numbers: 69A3551847101
• Files: UTC, RIP
• Created Date: May 1 2024 4:57PM