A numerical model for concrete slabs under fire conditions.
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Data
2013
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Resumo
A numerical model for the behavior of concrete slabs in a fire is described. This model
consists of a shell finite element, a damage constitutive model for concrete with steel
reinforcement and the consideration of heat transfer through the thickness of the slab.
An improved damage constitutive model for concrete at elevated temperatures has
been implemented considering compressive and tensile behavior through an orthotropic
compliance theory. The damage in compression is based on the concrete
stress–strain relationships presented by the European Committee for
Standardization. Several calculations have been performed to validate the improved
model. The comparison with experimental tests and numerical results confirm the
validity of the approach for reinforced concrete slabs subjected to large transverse
displacement.
Descrição
Palavras-chave
Structures, Fire, Slab, Finite element
Citação
CALDAS, R. B. et al. A numerical model for concrete slabs under fire conditions. Journal of Fire Protection Engineering, v. 23, p. 177-189, 2013. Disponível em: <https://journals.sagepub.com/doi/full/10.1177/1042391512472498>. Acesso em: 20 jul. 2017.