Development of Fatigue Limit Formula for Deformed Welded Wire Reinforcement (WWR)

This paper describes how the use of welded wire reinforcement (WWR) as an alternative to traditional mild steel reinforcing bars has many advantages. WWR boasts a higher yield strength, higher quality control, and significantly lower construction labor costs. However, many designers are still reluctant to use WWR as an alternative to mild steel reinforcing bars, due to unavailability of fatigue design guidance in the American Association of State Highway and Transportation Officials (AASHTO) Bridge Design Specifications. This paper reports on an extensive cyclic testing program on deformed high strength WWR. Based on this testing, a conservative stress range formula similar to the existing one for mild reinforcing bars is presented for possible adoption in the AASHTO LRFD Specifications. In addition, full monotonic axial tensile stress vs. strain relationships is presented.

• Supplemental Notes:
  • The Table of Contents on the CD-ROM lists the title of this paper as "Fatigue of Welded Wire Reinforcement".
• Corporate Authors:

  National Concrete Bridge Council

  Portland Cement Association, 5420 Old Orchard Road
  Skokie, IL  United States  60077-1083
• Authors:
  • Tadros, Maher K
  • Jongpitaksseel, Nipon
  • Bowers, Jeremy
  • Amornrattanepong, Wilast
• Conference:
  • The 2004 Concrete Bridge Conference
  • Location: Charlotte NC, United States
  • Date: 2004-5-17 to 2004-5-18
• Publication Date: 2004

Language

• English

Media Info

• Media Type: CD-ROM
• Features: Figures; Photos; References;
• Pagination: 10p
• Monograph Title: Building a New Generation of Bridges

Subject/Index Terms

• TRT Terms: Cyclic strength; Fatigue limit; Fatigue strength; Material reinforcement; Quality control; Tensile strength
• Identifier Terms: AASHTO LRFD Bridge Design Specifications
• Uncontrolled Terms: Welded wire reinforcement
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01036288
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 27 2006 8:14AM