A number of fatigue cracks that formed in welded steel bridge structures in North America are examined. Some were found to form because the fatigue strength of a detail was less than anticipated by design specifications. A number of cracks were found to develop because large initial defects were fabricated into structures because of failure to consider the importance of secondary members or attachments. However, by far the largest cause of cracking has been the result of out-of-plane distortion particularly in small web gaps. The review identifies details that should be avoided and provides a basis for preventing such cracking in the future. (Author/TRRL)

  • Availability:
  • Supplemental Notes:
    • This paper was presented during the Metal Structures Conference 1983, Brisbane, May 18-20, 1983.
  • Corporate Authors:

    Institution of Engineers

    11 National Circuit
    Barton, A.C.T.,   Australia 
  • Authors:
    • Fisher, J W
  • Publication Date: 1983-11

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00384586
  • Record Type: Publication
  • Source Agency: ARRB
  • Report/Paper Numbers: 83/3
  • Files: ITRD, TRIS, ATRI
  • Created Date: May 30 1984 12:00AM