Risk Based Inspection Plan Combined with Fatigue Failure Analysis for Jacket Platform

As an essential role of structure integrity management (SIM), risk-based inspection (RBI) analysis is an indispensable tool to ensure the fitness-for-purpose of offshore jacket platforms. Pushover analysis is employed to calculate RSR value and failure consequence of structural members. And four limit state equations of members are introduced in failure probability analysis. On the basis of risk-based inspection plan, which combined member failure consequence and probability, fatigue failure analysis results are taken into consideration and the final inspection plan is developed. Finally, a case study of jacket platform located in the South China Sea is proposed.