Abstract
Abstract Traditional methods of determining the extent and thickness of passive fire protection (PFP) on offshore platform structures are simplistic and provide little opportunity for design optimization. This paper presents a review of alternative methods of determining the use of PFP which have been tried to overcome these disadvantages. The method progressed and used for North Everest and Lomond was based upon the modeling of credible fire scenarios, the calculation of steel temperatures and the progressive collapse analysis of topsides structure under rising temperature. The selected method allowed the design engineer to optimize the use of PFP while instilling confidence that the design met specified safety objectives.
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