PREVENTION OF CRACKS IN CONCRETE BRIDGE DECKS - REPORT ON OBSERVATIONS OF BRIDGE DECKS CONSTRUCTED WITH INVERTED REINFORCING STEEL
This report focuses on one solution to control shrinkage cracking by placing the longitudinal reinforcement on top of the transverse bars and, therefore, closer to the deck's surface. The effectiveness of the "Inverted Bar" idea was explored in the construction of two sets of parallel bridges. One bridge in each set was constructed with this new idea while the other was constructed using the existing procedure (i.e., transverse bar on top). The results suggest that significant advantage would not be gained from the "Inverted Bar" detail with respect to crack control. The benefit is diminished in the presence of the large cover depths practiced.
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Corporate Authors:
Smith (Wilbur) and Associates
2921 Telstar Court
Falls Church, VA United States 20590Pennsylvania Department of Transportation
Office of Research and Special Studies, P.O. Box 2926
Harrisburg, PA United States 17120Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- Babaei, K
- Purvis, R L
- Publication Date: 1995-11
Language
- English
Media Info
- Features: Appendices; Figures; Tables;
- Pagination: 80 p.
Subject/Index Terms
- TRT Terms: Bridge decks; Concrete; Cracking; Longitudinal reinforcement; Measures of effectiveness; Prevention; Shrinkage; Transverse reinforcement
- Uncontrolled Terms: Cover depth; Effectiveness
- Old TRIS Terms: Inverted placement; Shrinkage cracks
- Subject Areas: Bridges and other structures; Design; Highways; Security and Emergencies; I24: Design of Bridges and Retaining Walls;
Filing Info
- Accession Number: 00725532
- Record Type: Publication
- Report/Paper Numbers: PA-FHWA-95-006+89-01, RP 89-01
- Files: TRIS, USDOT, STATEDOT
- Created Date: Sep 6 1996 12:00AM