Risk assessment for structural design criteria of FPSO systems. Part I: Generic models and acceptance criteria

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Without internal affiliation

  • Author: Faber, Michael H.

    Institute of Structural Engineering, ETH Zurich, CH-8093 Zürich, Switzerland

  • Author: Straub, Daniel

    Engineering Risk Analysis Group, TU München, Germany

  • Author: Heredia-Zavoni, E.

    Instituto Mexicano del Petróleo, Mexico

  • Author: Montes-Iturrizaga, R.

    Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas 152, México DF 07730, Mexico

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A generic framework for consequence assessment and risk analysis of FPSO systems for the purpose of establishing structural design criteria is introduced, taking basis in recent work by the Joint Committee on Structural Safety (JCSS) addressing the issue of system representation through exposure events, direct and indirect failure consequences. The scenarios considered for risk-based calibration of a design code safety format for FPSO systems are outlined. It is shown how these scenarios may be represented in a generic risk assessment model using Bayesian Probabilistic Networks (BPNs). Risk acceptance criteria related to consequences to humans are determined based on the Life Quality Index (LQI), which is outlined and discussed in this paper. The generic risk framework and acceptance criteria are then applied in a companion paper [1] to build consequence models and to determine target reliability indices for structural design of FPSO components.
Original languageEnglish
JournalMarine Structures
Publication date2012
Volume28
Issue1
Pages120-133
ISSN0951-8339
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 3
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