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Changes to AWS D1.5 and D1.3
Posted by Geoff Weisenberger on February 4, 2008 at 11:54 AM.

The American Welding Society recently announced the latest version of its AASHTO/AWS D1.5M/D1.5:2008—Bridge Welding Code to be used in conjunction with the AASHTO Standard Specification for Highway Bridges or AASHTO LRFD Bridge Design Specifications. This code covers the best practices and general provisions of routine bridge welding applications.


Significant updates from the previous version, as provided by Todd Niemann, P.E., Structural Metals and Bridge Inspection Engineer with the Minn. Department of Transportation and AASHTO/AWS D1.5 Chairman, include:


  • The addition of HPS 50W and HPS 70W and the deletion of 70W.
  • Updates to Tables 4.1, 4.2, 4.4, and 4.5 (filler metal, preheat, and stress relief requirements).
  • New WPS and PQR forms and revised samples of these forms.
  • Illustrations for measuring camber.
  • Optional supplemental moisture-resistant designators.
  • Machining and testing tolerances for performance test specimens.
  • Additions and revisions to usage, handling, and storage requirements for consumables in fracture-critical applications.
  • Revisions to inspection personnel qualifications.
  • Additions for Commentary for Sections 2,3,4,5, and 6 and Annex G.


AWS D1.3: D1.3-98, Structural Welding Code—Sheet Steel has also been updated recently. According to D. Robert Lawrence II, CWI, CWE, Buildings Division Welding Engineer with Butler Manufacturing Co. and Chair of AWS D1.3, significant changes to this Code include:


  • A new table for the selection of the proper code—D1.1 or D1.3—including selection possibilities of the applicable code when there is a code overlap.
  • A table of essential variables for prequalified and qualified welding procedures.
  • A new section for exception from some of the requirements of D1.1 for Arc Plug, Arc Spot, and Arc Seam welds for the attachment of decking, with commentary.
  • Corrections for the applicable thickness ranges for qualified Welding Procedures in the figures.
  • Updates to the material listings while retaining the older listings when there has been an ASTM name designation change without real physical changes (A-1008 and A-1011), including the addition of high-formability materials.
  • Clarification of the qualification inspection and testing requirements.
  • Corrections to formulas.
  • Improvement of the sketches to better depict the desired and important details and dimensions.


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