RELIABILITY ANALYSIS OF AN OFFSHORE STRUCTURE: A CASE STUDY - II

For an offshore structure in the North Sea it is assumed that information from measurements and inspections is available. As illustrations measurements of the significant wave height and the marine growth and different inspection and repair results are considered. It is shown how the reliability estimates of the structure can be updated using Bayesian techniques. By minimising the total expected costs including inspection, repair and failure costs during the lifetime an optimal inspection and repair strategy can be determined. The decision variables are the number of inspections, the time intervals between inspections and the inspection qualities. A parameter study is performed and an updated inspection plan is determined after the first inspection has taken place. See also the previous abstract.

• Supplemental Notes:
  • OMAE 1992, 11th Intl Conf on Offshore Mechanics & Arctic Engng; 7-12 June 1992; Calgary, Canada. Sponsored by ASME et al. Procs. Publ by ASME. Vol II, p 457 [7 p, 12 ref, 4 tab, 6 fig]
• Authors:
  • Sorensen, J D
  • FABER, M H
• Publication Date: 1992

Language

• English

Subject/Index Terms

• TRT Terms: Failure; Offshore structures; Reliability; Structural analysis; Structural mechanics
• Uncontrolled Terms: Structural failures; Structural reliability
• Subject Areas: Bridges and other structures; Marine Transportation;

Filing Info

• Accession Number: 00704995
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM