TY  - JOUR
AU  - Bursać, Milan
AU  - Kostić, Svetlana
PY  - 2024
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3489
AB  - The paper presents a nonlinear concentrated plasticity frame element for advanced analysis of steel frames exposed to elevated temperatures. The element extends the formulation based on the generalized plasticity material model that was successfully applied to the analysis of steel and composite structures. It considers the material's nonlinear behavior, temperature-induced loading, strength and stiffness degradation typical for structures under fire conditions. The nonlinear geometry is taken into account with the corotational formulation. Because of the generalized plasticity relations adoption, the element can describe the gradual yielding of cross sections. At the same time, the implemented return mapping algorithm ensures the element's high computational efficiency. The governing element equations, selection of parameters and computer implementation are discussed in the paper, followed by element validation through the number of experimental data examples and other numerical models. The comparative analysis demonstrated the element's versatility and capability to accurately predict the structural response of steel frame structures exposed to fire.
PB  - Elsevier
T2  - Computers and Structures
T1  - An efficient model for 3D analysis of steel frames exposed to fire
VL  - 297
DO  - 10.1016/j.compstruc.2024.107363
ER  - 

@article{
author = "Bursać, Milan and Kostić, Svetlana",
year = "2024",
abstract = "The paper presents a nonlinear concentrated plasticity frame element for advanced analysis of steel frames exposed to elevated temperatures. The element extends the formulation based on the generalized plasticity material model that was successfully applied to the analysis of steel and composite structures. It considers the material's nonlinear behavior, temperature-induced loading, strength and stiffness degradation typical for structures under fire conditions. The nonlinear geometry is taken into account with the corotational formulation. Because of the generalized plasticity relations adoption, the element can describe the gradual yielding of cross sections. At the same time, the implemented return mapping algorithm ensures the element's high computational efficiency. The governing element equations, selection of parameters and computer implementation are discussed in the paper, followed by element validation through the number of experimental data examples and other numerical models. The comparative analysis demonstrated the element's versatility and capability to accurately predict the structural response of steel frame structures exposed to fire.",
publisher = "Elsevier",
journal = "Computers and Structures",
title = "An efficient model for 3D analysis of steel frames exposed to fire",
volume = "297",
doi = "10.1016/j.compstruc.2024.107363"
}

Bursać, M.,& Kostić, S.. (2024). An efficient model for 3D analysis of steel frames exposed to fire. in Computers and Structures
Elsevier., 297.
https://doi.org/10.1016/j.compstruc.2024.107363

Bursać M, Kostić S. An efficient model for 3D analysis of steel frames exposed to fire. in Computers and Structures. 2024;297.
doi:10.1016/j.compstruc.2024.107363 .

Bursać, Milan, Kostić, Svetlana, "An efficient model for 3D analysis of steel frames exposed to fire" in Computers and Structures, 297 (2024),
https://doi.org/10.1016/j.compstruc.2024.107363 . .