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Computational modeling of the thermal effects on composite slabs under fire conditions
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Orientador(es)
Resumo(s)
This paper presents finite element thermal models to evaluate the thermal
behavior of composite slabs with steel deck, submitted to standard fire exposure.
Composite steel/concrete slabs are a mix of a reinforced concrete layer
with a profiled steel deck reinforced by steel bars between its ribs. The resulting
transient and non-linear thermal problems are solved numerically with threedimensional
multi-domain finite element models. The models were developed
for normal weight concrete and lightweight concrete, and for different steel deck
geometries (trapezoidal and re-entrant). The results of the numerical simulations
are used to present a new calculation method to determinate the temperatures on
the steel deck components and on the rebars and, consequently, to determine the
bending resistance of composite slabs under fire conditions.
Descrição
Palavras-chave
Nonlinear energy equation Finite element method Composite slab Standard fire Fire rating
Contexto Educativo
Citação
Balsa, Carlos; Silveira, Matheus B.; Mange, Valerian; Piloto, P.A.G. (2021). Computational modeling of the thermal effects on composite slabs under fire conditions. In First International Conference, ARTIIS 2021. p. 497-511. ISBN 978-3-030-90240-7