Modelling of I-Shaped Beam-to-Tubular Column Connection Subjected to Post-Fire Conditions

다국어 초록 (Multilingual Abstract)

This paper presents numerical results of structural post- fire bahaviour of I-shaped beam-to-chord joints in offshore platformstopside. Considering the high risk of fire events in offshore oil/gas platforms, this study focuses on the structural behaviour ofthese connections at post- fire condition. A highly detailed three-dimensional (3-D) finite element (FE) model of this connectionhas been created using the ABAQUS software. Steel members and connection components are considered to behave nonlinearly.
The results of finite element and experimental tests conducted on I shape beam-to-tubular column connections in furnace fireconditions are compared, and the obtained failure modes and moment-rotation-temperature characteristics are in good agreementwith those associated with experimental tests. The validated model has been used to conduct numerical parametric studies togenerate theoretical data to help develop detailed understanding of the joint behaviour in post-fire condition.

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