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+Copyright © Hatch 2016. All Rights Reserved.
Innovative Use of Ultra-High Performance Concrete for Rapid Bridge Construction
Hodder Avenue Underpass
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Author and Presenter:
Philip Murray, M.Eng., P.Eng.Senior Vice President, Hatch
Co-Authors:
Biljana Rajlic, P.Eng.Senior Vice President, Hatch
Robert Burak, P.Eng.President, Canadian Precast Prestressed Concrete Institute (CPCI)
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Location
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Challenges:
• First grade separated interchange in Northwestern Ontario
• Across the busiest highway• Short construction season• Resource constrained• Harsh climate and De-icing chemical• Aesthetics to match nearby scenery
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Solutions:
• Prefabricated components• Less on-site working days• Best use of available resources• High strength and durability concrete• Very slender profile with enhanced quality
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Modular Construction
“Bridge-out-of-a-box”
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Name of Structure Year Spans (m) Precast ComponentsSunshine Creek Bridge 2007 19.5 Girders, Curbs, Approach slabs
Buller Creek Bridge 2009 27.5 Girders, Curbs, Approach slabs
La Vallee River Bridge 2010 19.7 Girders, Curbs, Approach slabs
Eagle River Bridge 2010 26.2+34.1+26.2 Girders, Curbs, Approach slabs
Wabigoon River Bridge 2010 16.5+27.5+16.5 Girders, Curbs, Approach slabs, Pier column shells
Hodder Ave Underpass 2012 33.5+33.5 Girders, Sidewalks, Parapet walls, Approach slabs, Pier column shells, Pier cap, Abutment caps, Abutment ballast walls, Slope paving
Previous Projects
Copyright © Hatch 2016. All Rights Reserved.
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Name of Structure Year Spans (m) Precast ComponentsSunshine Creek Bridge 2007 19.5 Girders, Curbs, Approach slabs
Buller Creek Bridge 2009 27.5 Girders, Curbs, Approach slabs
La Vallee River Bridge 2010 19.7 Girders, Curbs, Approach slabs
Eagle River Bridge 2010 26.2+34.1+26.2 Girders, Curbs, Approach slabs
Wabigoon River Bridge 2010 16.5+27.5+16.5 Girders, Curbs, Approach slabs, Pier column shells
Hodder Ave Underpass 2012 33.5+33.5 Girders, Sidewalks, Parapet walls, Approach slabs, Pier column shells, Pier cap, Abutment caps, Abutment ballast walls, Slope paving
Previous Projects
Copyright © Hatch 2016. All Rights Reserved.
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Modular Construction
Pre-fabricated componentsCopyright © Hatch 2016. All Rights Reserved.
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Modular Construction
32 Prestressed Box GirdersCopyright © Hatch 2016. All Rights Reserved.
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Modular Construction
30 sidewalk/parapet wall panelsCopyright © Hatch 2016. All Rights Reserved.
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Modular Construction
2 Ballast walls and Abutment capsCopyright © Hatch 2016. All Rights Reserved.
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Modular Construction
20 slope paving panelsCopyright © Hatch 2016. All Rights Reserved.
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Modular Construction
16 approach slab panelsCopyright © Hatch 2016. All Rights Reserved.
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Modular Construction
An inverted-T shape UHPC pier capCopyright © Hatch 2016. All Rights Reserved.
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Modular Construction
3 UHPC pier column shellsCopyright © Hatch 2016. All Rights Reserved.
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Modular Construction
Components assembledCopyright © Hatch 2016. All Rights Reserved.
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Modular Construction
Field-cast UHPC jointsCopyright © Hatch 2016. All Rights Reserved.
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UHPC
Ultra-High Performance Concrete (UHPC)
Cement matrix with internal fibres
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Compressive strength up to 200 MPa
Tensile strength up to 10 MPa
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UHPC
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High strength
Ductility
Durability
Fluidity – Self-consolidating
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UHPC
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Shear key between girders
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UHPC Joints
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UHPC Joints Continuity joint over pier
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UHPC Joints Abutment cap joints
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UHPC Joints Approach slab panel joints
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UHPC Joints Sidewalk/parapet wall panel joints
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Pier Columns with UHPC Shells Construction – Stay-in-place form with reinforced concrete infill Durability – Low porosity protective shell Aesthetics – Octagonal flaring geometry
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Copyright © Hatch 2016. All Rights Reserved.
UHPC Pier Cap
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Source: Lafarge
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UHPC Pier Cap Conventional pier cap design
Hodder embedded pier cap design
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Copyright © Hatch 2016. All Rights Reserved.
UHPC Pier Cap Inverted-T shaped pier cap Prestressed and precast with UHPC
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Source: Lafarge
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UHPC Pier Cap Finished pier cap with columns
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Source: Google
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UHPC Pier Cap Finished pier cap with columns
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Modular Construction
Assembled structure
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Highlights:
• On-site working days is 80% of conventional method• Erect each girder in 15 minutes• Less formwork and associated safety issue• Effective use of UHPC and precast resources• Unique design of pier cap and joint• Stay-in-place pier column form• Minimized impact on the traffic• Enhanced quality, durability and aesthetics
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Aesthetics
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Typical Highway Bridges
Source: Google
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Typical Highway Bridges
Source: Google
Source: Lafarge
Hodder Ave. Underpass
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SlendernessExamples Elevation Span-to-
depth ratioHodder Ave. Underpass, Thunder Bay, Ontario (Photo: Lafarge)
29.1
A bridge over Highway, Ontario(Photo: Hatch)
Approx. 14.0
Doane Road Underpass over Highway 404, Queensville, Ontario 18.3
Queensville Side Road Underpass over Highway 404, Queensville, Ontario 19.1
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Transparency
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Traditional highway bridges
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Transparency
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Scenario of innovation
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Source: Google
Transparency
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Hodder Ave. Underpass
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Source: Lafarge
Transparency
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Hodder Ave. Underpass
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Awards and Publications
• PCI Harry H. Edwards Industry Advancement Award • PCI Design Award (Main Span 76–150 Feet)• Ontario Concrete Awards – Structural Design Innovation Award• Ontario Concrete Awards – Material Development and Innovation Award• “Hodder Avenue Underpass - A Modular Construction Approach and a Unique UHPC
Pier Cap Design” – 9th International Conference on Short and Medium Span Bridges• “Building a Better Bridge with UHPC” – Construction Canada Magazine
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• Expedites construction on site, optimizes resources• Highly adaptable solution• Can be fabricated by any precast company, assembled by any
contractor at any location• Precast/Prestressed Concrete Institute (PCI):
Could be solution to all deficient bridges in North America• Ministry of Transportation of Ontario (MTO):
Plan to use it for a number of planned highway bridges
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Hodder Ave. Underpass
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Source: Lafarge
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Hodder Ave. Underpass