International Journal of Safety

The Korean Society of Safety (한국안전학회)
권호 표지

Fatigue Assessment of Steel Railway Bridge by Service Loading about 65 Years

  • Received : 2010.03.25
  • Accepted : 2010.06.10
  • Published : 2010.06.30
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Abstract

In this study, a series of random field test and dynamic analysis in the time domain were carried out in order to find in the reason of fatigue damage of the main and the secondary members in the 3-span continuous steel plate girder railway bridge being under in service over 60 years. From the measured and the analyzed results, the stress distribution patterns were investigated for the members with fatigue damage. In addition, global and local numerical stress analysis was performed for the members damaged severely by corrosion, to estimate variation of the distribution by corrosion. Finally, a reasonable cut-off ratio in the steel plate railway bridge will be proposed by analyzing the equivalent stress ranges according the ratio.

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References

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