Steel and Composite Structures

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Plastic analysis of steel arches and framed structures with various cross sections

  • Silva, Jessica L. (Department of Civil Engineering, Federal University of Ouro Preto, Campus Universitario) ;
  • Deus, Lidiane R.R.M. (Department of Civil Engineering, Federal University of Ouro Preto, Campus Universitario) ;
  • Lemes, Igor J.M. (Department of Engineering, Federal University of Lavras, Campus Universitario) ;
  • Silveira, Ricardo A.M. (Department of Civil Engineering, Federal University of Ouro Preto, Campus Universitario)
  • Received : 2020.04.15
  • Accepted : 2021.01.14
  • Published : 2021.02.10
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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.

Keywords

Acknowledgement

The authors would like to thank CAPES and CNPq (Federal Research Agencies), FAPEMIG (Minas Gerais State Research Agency), Gorceix Foundation, PROPEC/UFOP, PROPP/UFOP, and UFLA for their support during the preparation of this work.

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