Fatigue Resistance of Rib to Deck Welds in Steel Orthotropic Decks

This research project will develop welding procedures for fabrication of steel orthotropic bridge decks. The project will focus on the quantifying the variables affecting the fatigue resistance of rib-to-deck welds. Originally the project was to evaluate the Hybrid Laser Arc Welding (HLAW) process for re-decking the Walt Whitman Bridge in Philadelphia, but project did not get results quickly enough and the scope was expanded to also include conventionally used steel fabrication welding processes. The project is now evaluating the fatigue resistance of rib-to-deck welds made using HLAW, SAW, and GMAW welding processes at various weld penetrations of fillet, 20%, 40%, 60%, 80% and 100% weld penetration.

Language

• English

Project

• Status: Active
• Funding: $100000.00
• Sponsor Organizations:

  Federal Highway Administration

  Turner-Fairbank Highway Research Center
  McLean, VA  United States  22101
• Project Managers:

  Ocel, Justin

• Performing Organizations:

  Virginia Polytechnic Institute and State University, Blacksburg

  Virginia Tech Transportation Institute
  3500 Transportation Research Plaza
  Blacksburg, VA  United States  24061
• Principal Investigators:

  Wright, William

• Start Date: 20090101
• Expected Completion Date: 0
• Actual Completion Date: 20101231
• Source Data: RiP Project 20529

Subject/Index Terms

• TRT Terms: Bridge decks; Bridge design; Cracking; Fabrication; Fatigue (Mechanics); Research projects; Welding
• Identifier Terms: Hybrid Laser Arc Welding
• Geographic Terms: Philadelphia (Pennsylvania)
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 01462330
• Record Type: Research project
• Source Agency: Federal Highway Administration
• Files: RIP, USDOT
• Created Date: Jan 3 2013 2:02PM