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Fatigue assessment for deck plates in orthotropic bridge decks

Author(s):


Medium: journal article
Language(s): English
Published in: Steel Construction, , n. 2, v. 5
Page(s): 93-100
DOI: 10.1002/stco.201210011
Abstract:

Since the 1960s, orthotropic deck plates of highway bridges have been built with large cold-formed trapezoidal stiffeners supporting a deck plate with a thickness of approx. 12 mm. The maximum cross-beam spacing is approx. 4 m. A number of these bridge decks in The Netherlands suffer from fatigue cracks in the deck plate. First cracks have been observed after about 30 years in service. In one particular movable bridge, the cracks were found after only seven years. In many other countries, this type of crack has not yet been observed.
This article provides a fatigue assessment procedure for deck plates. The procedure is calibrated with the conditions and observations in The Netherlands. It gives a fatigue life prediction and takes account of inspection results quantitatively. Although aspects such as the type and thickness of the surface finishes and the traffic load may vary between countries, the principles of the assessment procedure in this article are generally applicable and can be used to identify reasons for differences in fatigue life and to develop strategies for increasing the life.

Keywords:
fatigue S-N curve orthotropic deck traffic load bridge deck fracture mechanics movable bridge
Available from: Refer to publisher
Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.1002/stco.201210011.
  • About this
    data sheet
  • Reference-ID
    10067086
  • Published on:
    05/09/2012
  • Last updated on:
    13/08/2014
 
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