Development of a System-Level Distributed Sensing Technique for Long-Term Monitoring of Concrete and Composite Bridges

Long-distance distributed sensing of bridges using fiber optic sensors is achieved by the Brillouin scattering of nonlinear acoustic photons (laser light) inside an optical fiber. Such nonlinear scattering of incident photons can be exploited to obtain the change of state (due to temperature or stress) at different locations in an optical fiber over a long distance (e.g., from several to hundreds of miles). In this project, Brillouin Optical Time Domain Reflectometer (BOTDR) technique has been adopted for distributed sensing of mechanical and thermal strains of bridges. Figure 2 shows the schematic configuration of BOTDR for bridge monitoring and the conceptual description of multiphysical observation of structural behavior for health monitoring. The research team will develop a system-level distributed sensing technique and its design procedure for composite and concrete bridges, as well as developing structural health monitoring algorithms based on mechanical and electromagnetic measurements using fiber optic, video motion, and radar sensors.

Language

  • English

Project

  • Status: Active
  • Funding: $166270
  • Contract Numbers:

    69A3551847101

  • Sponsor Organizations:

    University Transportation Center Program

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    Transportation Infrastructure Durability Center

    University of Maine
    Orono, ME  United States  04469

    University of Massachusetts, Lowell

    Department of Civil and Environmental Engineering
    108 Falmouth Hall, One University Avenue
    Lowell, MA  United States  01854

    University of Vermont, Burlington

    College of Engineering and Mathematics
    33 Colchester Avenue, 109 Votey Building
    Burlington, VT  United States  05405-0156

    University of Maine, Orono

    Department of Civil and Environmental Engineering.
    5717 Corbett Hall
    Orono, ME  United States  04469-5711

    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
  • Project Managers:

    Dunn, Denise

  • Performing Organizations:

    Transportation Infrastructure Durability Center

    University of Maine
    Orono, ME  United States  04469

    University of Massachusetts, Lowell

    Department of Civil and Environmental Engineering
    108 Falmouth Hall, One University Avenue
    Lowell, MA  United States  01854

    University of Vermont, Burlington

    College of Engineering and Mathematics
    33 Colchester Avenue, 109 Votey Building
    Burlington, VT  United States  05405-0156

    University of Maine, Orono

    Department of Civil and Environmental Engineering.
    5717 Corbett Hall
    Orono, ME  United States  04469-5711
  • Principal Investigators:

    Yu, Tzuyang

    Faraji, Susan

    Ghazanfari, Ehsan

    Davids, Bill

    Wang, Xingwei

    Mao, Zhu

  • Start Date: 20200101
  • Expected Completion Date: 20201231
  • Actual Completion Date: 0
  • USDOT Program: University Transportation Centers Program

Subject/Index Terms

Filing Info

  • Accession Number: 01730656
  • Record Type: Research project
  • Source Agency: Transportation Infrastructure Durability Center
  • Contract Numbers: 69A3551847101
  • Files: UTC, RiP
  • Created Date: Feb 7 2020 3:21PM