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Steel and Composite Structures Volume 38, Number 3, February10 2021 , pages 257-270 DOI: https://doi.org/10.12989/scs.2021.38.3.257 |
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Plastic analysis of steel arches and framed structures with various cross sections |
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Jéssica L.Silva, Lidiane R.R.M. Deus, Igor J.M. Lemes and Ricardo A.M. Silveira
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Abstract | ||
This paper presents a displacement-based numerical methodology following the Euler-Bernoulli theory to simulate the 2 nonlinear behavior of steel structures. It is worth emphasizing the adoption of co-rotational finite element formulations considering large displacements and rotations and an inelastic material behavior. The numerical procedures proposed considers plasticity concentrated at the finite elements nodes, and the simulation of the steel nonlinear behavior is approached via the Strain Compatibility Method (SCM), where the material constitutive relation is used explicitly. The SCM is also applied in determining the sections bearing capacity. Moreover, the present numerical approach is not limited to a specific structural member cross-sectional typology, with the residual stress models introduced explicitly in subareas of steel cross-sections generated by a 2D discretization. Finally, results consistent with the literature and with low processing time are presented. | ||
Key Words | ||
co-rotational approach; concentrated plasticity; SCM; various steel sections | ||
Address | ||
Jessica L.Silva, Lidiane R.R.M. Deus and Ricardo A.M. Silveira: Department of Civil Engineering, Federal University of Ouro Preto, Campus Universitário, Morro do Cruzeiro, 35400-000, Brazil Igor J.M. Lemes: Department of Engineering, Federal University of Lavras, Campus Universitário, Kennedy, 37200-900, Brazil | ||