Passive fire protection (PFP) is widely used in the oil and gas industry as a method to avoid or delay collapse of offshore installations. This paper discusses the thermal and structural response observed on typical three-sided PFP beams used in the industry. Several heat-transfer finite element analyses (FEA) were performed on a range of rolled I sections and plate girders. The results provide an understanding of the influence of conduction, convection, and radiation in the heat-up mechanism of the beams.
Introduction
Many steel beams in oil and gas installations are normally coated with three-sided fire protection.
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