Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Structural Characteristics of Damaged Offshore Tubular Members

  • Cho, Sang-Rai (School of Naval Architecture and Ocean Engineering Ulsan Uinversity) ;
  • Kwon, Jong-Sig (Bureau Veritas, Busan Office) ;
  • Kwak, Dong-Il (Dept. of Civil Engineering, Daegu Technical University)
  • Received : 2009.12.24
  • Accepted : 2010.08.18
  • Published : 2010.08.31
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Abstract

Over the past few decades various experimental and theoretical investigations have been performed on offshore tubular members with regard to damage resistance and residual strength. Analysis of damaged tubular members requires a three-dimensional shell analysis for accurate results. Even though various commercial packages are available for this purpose, a beam-column analysis is preferred for offshore structural designs. In this paper, empirical equations are provided for a more accurate beam-column analysis of damaged tubes including the relationships between the lateral denting load and the depth of the dent, the rate of dent deepening due to increasing curvature and the longitudinal variation in the dent depth of damaged tubes. A design equation to predict the ultimate bending capacities of damaged offshore tubular members is also presented.

Keywords

References

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