Civil Infrastructure Research Answering critical infrastructure questions Neil Hoult and Ian Moore, Department of Civil Engineering.

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Presentation transcript:

Civil Infrastructure Research Answering critical infrastructure questions Neil Hoult and Ian Moore, Department of Civil Engineering

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

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)

Culvert Deterioration (Courtesy of Taher and Moore, 2011)

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

Thickness distribution for corroded culvert Invert

Thickness distribution for corroded culvert mm

The Buried Infrastructure Lab Built with CFI, MRI and industry funding

Loading set-up Simulated vehicle loading

Failure mechanism of heavily deteriorated specimen Local Bending Local Buckling

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

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

Fibre Optic Sensors Purchased 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

Pipe Rehabilitation using slip lining

Novel Measurements – HDPE Liner

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

Test Site: Black River Bridge

Fibre optic layout

Fibre optic vs strain gauge measurements

Bridge response

Future Facilities Funded 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

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!