TY - JOUR T1 - Reliability analysis and Response Based Design of a moored FPSO in West Africa A1 - Fontaine,E. A1 - Orsero,P. A1 - Ledoux,Annick A1 - Nerzic,R. A1 - Prevosto,Marc A1 - Quiniou,Valerie AD - IFP Energies Nouvelles, Dept Appl Mech, F-92852 Rueil Malmaison, France. AD - Univ Technol Compiegne, F-60203 Compiegne, France. AD - Principia, F-13600 La Ciotat, France. AD - Actimar, F-29200 Brest, France. AD - IFREMER, Ctr Plouzane, F-29000 Brest, France. AD - Total, F-92078 Paris, France. UR - https://doi.org/10.1016/j.strusafe.2012.08.002 DO - 10.1016/j.strusafe.2012.08.002 KW - Environmental contour KW - Joint probabilities KW - Multivariate extremes KW - I-FORM KW - FPSO KW - West Africa KW - Structural reliability KW - Response-based design KW - Inverse reliability method KW - Response surface N2 - The present study is an attempt to re-assess the level of reliability of the mooring system of an existing Floating Production Storage and Offloading (FPSO) unit in West Africa. The study made use of field data for the environment including wind, waves and current together with simultaneous measurements of the FPSO offset and of the mooring line tensions. Three different approaches to predict the extreme response are compared. More specifically, the traditional design method is compared with Response Based Design (RBD) and First Order Reliability Method (FORM) analysis associated with Response Surface Models (RSM) of the moored FPSO. The results of this case study allow assessing the level of conservatism that is currently embedded in classical design rules. Y1 - 2013 PB - Elsevier Science Bv JF - Structural Safety SN - 0167-4730 VL - 41 SP - 82 EP - 96 ID - 23915 ER -