Fiber beam model for fire response simulation of axially loaded concrete filled tubular columns
comunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7035
comunitat-uji-handle3:10234/8617
comunitat-uji-handle4:
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http://dx.doi.org/10.1016/j.engstruct.2013.05.004 |
Metadatos
Título
Fiber beam model for fire response simulation of axially loaded concrete filled tubular columnsFecha de publicación
2013Editor
ElsevierISSN
0141-0296Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.sciencedirect.com/science/article/pii/S0141029613002137#Palabras clave / Materias
Resumen
This paper presents a fiber beam model for the fire response simulation of concrete filled tubular columns of circular section under concentric axial load. The model consists of two parallel components, one with a ... [+]
This paper presents a fiber beam model for the fire response simulation of concrete filled tubular columns of circular section under concentric axial load. The model consists of two parallel components, one with a circular tubular steel section, and the other with a solid circular concrete section. The components interact with nonlinear longitudinal and transverse links at the end nodes. The element is formulated on a system without rigid body modes and accounts for large displacement geometry through the co-rotational formulation connected both longitudinally and transversely at their nodes by link elements. The model is capable of representing different types of concrete infill of the steel tubes: plain, reinforced and steel fiber reinforced concrete of normal or high strength. It is validated against experimental data from column specimens under fire. The results are also compared against a three-dimensional finite element model characterized by its accuracy of fire response simulation. [-]
Publicado en
Engineering Structures, 2013, vol. 56, novemberDerechos de acceso
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