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Fatigue Performance of Rib-to-Deck Welds for Steel Orthotropic Bridge Decks

Project Information

Project ID: 
FHWA-PROJ-07-0013
Project Abstract: 

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.

Research HUB ID: 
7606
Project Status: 
Active
Project Funding Amount (Contract Award Amount): 
$100,000
Start Date: 
Sunday, July 1, 2007
End Date: 
Friday, August 1, 2014
Public Access Plan: 
No
Laboratory: 
Structures Laboratory
FHWA AMRP Program: 
Infrastructure
FHWA AMRP Activity: 
Structures

Contact Information

First Name: 
Justin
Last Name: 
Ocel
Phone Number: 
(202) 493-3080
Email Address: 
Team: 
Bridge Engineering Team
Office:
Office of Infrastructure Research and Development
Office Code: 
HRDI-40

Management Organizations

Partners and Other Sponsor/Managing/Performing Organizations: 

Deliverables