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Civil Infrastructure Research Answering critical infrastructure questions

Explore three example projects focusing on deteriorated and rehabilitated culvert testing with innovative sensors, alongside a field test of a bridge. Future facilities and impact for partners are also outlined. Funding provided by various organizations.

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Civil Infrastructure Research Answering critical infrastructure questions

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  1. Civil Infrastructure ResearchAnswering critical infrastructure questions Neil Hoult and Ian Moore, Department of Civil Engineering

  2. Outline Three example projects: • Deteriorated culvert testing • Rehabilitated culvert testing with novel sensors • Field test of a bridge Future facilities

  3. Deteriorated Culvert Testing Objectives: • Determine capacity of deteriorated culverts Impact for partner: • Optimize rehabilitation / replacement strategies Partners: • Ministry of Transportation Ontario (MTO) • National Cooperative Highway Research Program (NCHRP)

  4. Culvert Deterioration (Courtesy of Taher and Moore, 2011)

  5. Experimental Specimens a) Heavily deteriorated b) Lightly deteriorated Invert Invert Crown SP SP Invert

  6. Thickness distribution for corroded culvert Invert

  7. Thickness distribution for corroded culvert mm

  8. The Buried Infrastructure LabBuilt with CFI, MRI and industry funding

  9. Loading set-up Simulated vehicle loading

  10. Failure mechanism of heavily deteriorated specimen Local Bending Local Buckling

  11. Results: Predicted vs. experimental forces in structure – Lightly deteriorated specimen Vehicle Load (kips) Force in Structure (kN/m) Force in Structure (kip/ft) Vehicle Load (kN)

  12. Rehabilitated Culvert Testing Objectives: • Determine capacity of rehabilitated structures Impact for partner: • Develop accurate procedures for rehabilitation design Partners: • KWH Pipe • Lafarge • Ministry of Transportation Ontario (MTO) • National Cooperative Highway Research Program (NCHRP) • Ontario Concrete Pipe Association

  13. Fibre Optic SensorsPurchased with CFI, MRI and industry funding • Optical Backscatter Reflectometer (OBR 4600) developed by Luna Technologies • Allows for distributed measurements of strain • Characterize behaviour in a way that has not been possible

  14. Pipe Rehabilitation using slip lining

  15. Novel Measurements – HDPE Liner

  16. Bridge Field Testing Objectives: • Develop tool for assessment and damage detection in bridges Impact for partner: • Extend bridge service lives Partners: • Ministry of Transportation Ontario • Transport Canada

  17. Test Site: Black River Bridge

  18. Fibre optic layout

  19. Fibre opticvs straingauge measurements

  20. Bridge response

  21. Future FacilitiesFunded by CFI, MRI and industry Geotechnical Testing – water and sewer pipes, culverts • Deep burial and erosion simulator • Pipe deterioration facilities • High speed distributed strain measurement (?) Structures • Moving load simulator • Deterioration facilities • Bridge component testing

  22. Thanks! Funding and support provided by: Canada Foundation for Innovation KWH Pipe Lafarge Ministry of Transportation Ontario National Cooperative Highway Research Program Natural Science and Engineering Research Council of Canada Ontario Concrete Pipe Association and M-Con Ontario Ministry of Research and Innovation Transport Canada Research conducted by: Bryan Simpson, Ryan Regier and Van Thien Mai Assisted by: Graeme Boyd, Andre Brault, Adam Hoag, Keelin Scully, Trevor Smith, Paul Thrasher, Brian Westervelt and anyone I have forgotten!

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