Investigation of Exterior Girder Rotation and the Effect of Skew during Deck Placement, TR-711
With many of the nation's bridges approaching (or having already exceeded) their original design life, bridge replacement options/techniques/technologies continue to need to be advanced to meet the challenges faced by the bridge engineering community. Recent statistics reveal that there are approximately 600,000 bridges on the highway system and approximately 25%, by deck area, are considered either structurally deficient or functionally obsolete. Although the situation has improved some in recent years, a significant problem still exists given the number of bridges needing regular replacement. It is vitally important that, when constructed (or when only decks are replaced), the utmost highest construction practices are followed such that the final product has a high likelihood of achieving the target design life. It has been observed that current construction practices associated with constructing bridge decks sometimes results in excessive out-of-plane and torsional loads on exterior girders. Structurally, this can result in decks that are too thin or girders with excessive (and unintended) internal stresses. Functionally, this can result in bridges that are difficult to maintain or have rideability issues.
Language
- English
Project
- Status: Active
- Funding: $89,999
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Contract Numbers:
ISU proposal number: 135080
TR-711
Add 580
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Sponsor Organizations:
Iowa Department of Transportation
800 Lincoln Way
Ames, IA United States 50010 -
Managing Organizations:
Iowa Department of Transportation
800 Lincoln Way
Ames, IA United States 50010 -
Project Managers:
Goetz, Vanessa
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Performing Organizations:
Bridge Engineering Center
2711 South Loop Drive, Suite 4700
Ames, Iowa United States 50010-8664 Institute for Transportation
2711 South Loop Drive, Suite 4700
Ames, Iowa United States 50010-8664 -
Principal Investigators:
Phares, Brent
Shafei, Behrouz
- Start Date: 20160701
- Expected Completion Date: 20190831
- Actual Completion Date: 0
- Source Data: TR-711; Addendum 580
Subject/Index Terms
- TRT Terms: Bridge construction; Bridge decks; Girder bridges; Maintenance; Service life; Skew bridges; Stresses
- Subject Areas: Bridges and other structures; Construction; Highways; Maintenance and Preservation;
Filing Info
- Accession Number: 01601657
- Record Type: Research project
- Source Agency: Iowa Department of Transportation
- Contract Numbers: ISU proposal number: 135080, TR-711, Add 580
- Files: RIP, STATEDOT
- Created Date: Jun 2 2016 2:27PM