Fire Resistance of U-shape Hybrid Composite Beam

Sungbae Kim, Sangseup Kim, Deonsu Ryu, Seng-Kwan Choi

Research output: Contribution to journalArticlepeer-review


This paper aims to experimentally investigate the fire resistance of U-shaped hybrid composite beams protected by spay and paint insulations. Subjected to two and three hours of the Standard ISO fire, the flexural performance of 4.4m beams with/without imposed loadings was examined with respect to failure criteria such as deflection and deflection rate of the mid-span and temperatures measured in the steel section. The results demonstrated that the proposed configuration of the composite beam is able to achieve a very competitive 3-hour fire resistance rating in economical aspects.
Original languageEnglish
Pages (from-to)379-388
JournalJournal of Korean Society of Steel Construction
Issue number4
Publication statusPublished (in print/issue) - 1 Aug 2013


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