U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations
| Project Information | ||
| Project ID: | FHWA-PROJ-07-0013 | |
| Project Name: | Fatigue Performance of Rib-to-Deck Welds for Steel Orthotropic Bridge Decks | |
| Project Status: | Active | |
| Start Date: | July 1, 2007 | |
| End Date: | August 1, 2014 | |
| Contact Information | ||
| Last Name: | Ocel | |
| First Name: | Justin | |
| Telephone: | 202-493-3080 | |
| E-mail: | justin.ocel@dot.gov | |
| Office: | Office of Infrastructure Research and Development | |
| Team: | Bridge and Foundation Engineering Team [HRDI-40] | |
| Program: | High-Performing Steel Bridge | |
| Laboratory: | Structures Laboratory | |
| Project detail | ||
| Roadmap/Focus area(s): | Infrastructure Research and Technology Strategic Plan and Roadmap | |
| Project Description: | The current American Association of State Highway and Transportation Officials and American Welding Society requirements for rib-to-deck welds require an 80 percent penetration groove weld with no melt or blow through. The need for a highly defined weld is to ensure a geometry with a good fatigue performance. However, in practice this weld is difficult to produce to tolerances commonly put on design plans. This project will determine the fatigue performance of this ideal weld, as well as those made using gas metal arc welding, submerged arc welding, and hybrid laser weld processes of various weld penetrations (fillet, 20 percent, 40 percent, 60 percent, and 80 percent). Finally, welds will also be fabricated with intentional fit-up gaps to ensure they do not adversely affect the fatigue performance. | |
| Goals: | To determine the proper fatigue category based on fit-up tolerances and weld penetration for orthotropic rib-to-deck welds. | |
| Product Type: | Technical report | |
| Test Methodology: | Full-scale experimental | |
| Partners: | Federal Highway Administration: Office of Infrastructure - Office of Bridge Technology; Role(s): Other stakeholder | |
| Expected Benefits: | Reduction of fabrication costs of steel orthotropic decks in the United States. | |
| Deliverables: | Name: WORKING TITLE - "Optimization of Rib-to-Deck Welds for Steel Orthotropic Bridge Decks" Product Type(s): Technical report Description: The final report would include a description of the research methodology, the data collected, interpretations of the data, and recommendations. | |
| FHWA Topics: | Roads and Bridges--Structures | |
| TRT Terms: | Orthotropic Steel Bridges Bridge Decks Fatigue Tests Fatigue Cracking Infrastructure Bridges Welds |
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| FHWA Disciplines: | Structures |
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| Subject Areas: | Bridges and other structures Research |
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