Civil Infrastructure Research Answering critical infrastructure questions Neil
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 Invert Invert a) Heavily deteriorated Crown
b) Lightly deteriorated SP SP Invert 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 CSP2 SA 2ft AppliedLoad force(kips) (kips) Vehicle 5
10 15 20 25 30 35
Thrust force ( kN/m) Force in Structure (kN/m) -20 0 -2
-40 CHBDC -4 -60 -80 AASHTO -6
-120 CANDE -8 -140 Katona Experiment 1st
-100 Experiment 2nd -160 -10 Moore -12
-180 0 20 40 60 80 100
Vehicle (kN) Applied Load force (kN) 120 140 160
force (kip/ft) ForceThrust in Structure (kip/ft) 0 0 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!
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