Development of a System-Level Distributed Sensing Technique for Long-Term Monitoring of Concrete and Composite Bridges (C11.2019)
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: $166304
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Contract Numbers:
69A3551847101
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Sponsor Organizations:
University Transportation Center Program
1200 New Jersey Avenue, SE
Washington, DC United States 20590Transportation Infrastructure Durability Center
University of Maine
Orono, ME United States 04469University of Massachusetts, Lowell
Department of Civil and Environmental Engineering
108 Falmouth Hall, One University Avenue
Lowell, MA United States 01854University of Vermont, Burlington
College of Engineering and Mathematics
33 Colchester Avenue, 109 Votey Building
Burlington, VT United States 05405-0156 Department of Civil and Environmental Engineering.
5717 Corbett Hall
Orono, ME United States 04469-5711Office 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
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Performing Organizations:
Transportation Infrastructure Durability Center
University of Maine
Orono, ME United States 04469University of Massachusetts, Lowell
Department of Civil and Environmental Engineering
108 Falmouth Hall, One University Avenue
Lowell, MA United States 01854University of Vermont, Burlington
College of Engineering and Mathematics
33 Colchester Avenue, 109 Votey Building
Burlington, VT United States 05405-0156 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: 20240930
- Actual Completion Date: 0
- USDOT Program: University Transportation Centers Program
Subject/Index Terms
- TRT Terms: Algorithms; Bridge engineering; Composite structures; Concrete bridges; Fiber optics; Mechanical analysis; Sensors; Structural health monitoring; Thermal analysis
- Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation;
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 7:41PM