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Enhancement of welded steel bridge girders susceptible to distortion-induced fatigue.

File Language:
English


Details

  • Creators:
  • Corporate Creators:
    University of Kansas. Center for Research
  • Corporate Contributors:
    United States. Federal Highway Administration
  • Subject/TRT Terms:
  • Publication/ Report Number:
    FHWA-KS-14-03
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    United States
  • Corporate Publisher:
    University of Kansas
  • Abstract:
    The goal of this study was to develop and evaluate the performance of retrofit techniques for existing steel

    bridges that have already sustained damage due to distortion-induced fatigue, or are anticipated to experience

    distortion-induced fatigue cracking within their design life. A second goal was to evaluate the use of new

    technologies and materials for repairing distortion-induced fatigue damage in steel bridges.

    While a number of retrofit techniques exist for repairing distortion-induced fatigue cracking, many of

    them require partial or full bridge closure to perform the repair. The retrofits developed under this project are

    intended to be able to be installed with minimal disturbance to traffic. Four primary subject matters are

    reported on within this document: (1) the development of the “angles-with-plate” distortion-induced fatigue

    repair; (2) development of fiber reinforced polymer (FRP) repairs for distortion-induced fatigue and in-plane

    fatigue; (3) development of Piezoelectric Induced Compressive Kinetics (PICK) technology for treatment of

    crack-arrest holes; and (4) a series of analytical investigations aimed at better understanding distortion-induced fatigue susceptibility of skewed bridge systems.

  • Format:
    PDF
  • Funding:
    C1795
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:f8d9e281c7d4df2df7db60b9038b498cfbf793eb89354e98801af2d8cc20f44d072b1c70faa77e49ff41bb06bd237ebc751503de8e2f54c308a9feb2af475a7c
  • Download URL:
  • File Type:
    Filetype[PDF - 1.94 MB ]
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