Spalling of Concrete - Implications for Structural Performance in Fire

S. Deeny, T. Stratford, R. Dhakal, P. Moss, A. Buchanan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract / Description of output

This preliminary paper is a progress report on an analytical investigation into the implications of explosive spalling on the fire performance of reinforced concrete structural elements and whole structures. This study does not attempt to predict whether spalling will occur. For accurate prediction of the occurrence of spalling a complete and fully coupled hygro-thermal-mechanical (HTM) analysis is required, as described by a comprehensive review of current research into the parameters and mechanisms that influence spalling, including a review of physical spalling criteria. This paper describes the structural performance of spalled concrete elements, using finite element analysis where spalling is modelled by removing layers of concrete when a set of spalling criteria are met. The method is presented using a case study of a simply supported reinforced concrete beam, where the analytical results indicate that spalling invariably triggers an early failure (well short of the required FRR rating) of a beam exposed to the standard fire.
Original languageEnglish
Title of host publicationProceedings of the International Conference Applications of Structural Fire Engineering
Number of pages6
Publication statusPublished - 2009
EventApplications of Structural Fire Engineering - Prague, United Kingdom
Duration: 19 Feb 200920 Feb 2009


ConferenceApplications of Structural Fire Engineering
Country/TerritoryUnited Kingdom


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