Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/42682
Título: Second-order inelastic analysis of shallow and non-shallow steel arches
Palavras-chave: Steel arches
Nonlinear analysis
Large displacements
Co-rotational formulation
Inelasticity
Arcos de aço
Análise não-linear
Grandes deslocamentos
Formulação corrotacional
Inelasticidade
RPHM/SCM coupling
Acoplamento MCD/MRPR
Data do documento: Mai-2020
Editor: Associação Brasileira de Ciências Mecânicas
Citação: DEUS, L. R. R. M. de et al. Second-order inelastic analysis of shallow and non-shallow steel arches. Latin American Journal of Solids and Structures, Rio de Janeiro, v. 17, n. 3, e265, 2020. DOI: https://doi.org/10.1590/1679-78255941.
Resumo: This work presents a second-order inelastic analysis of steel arches. The analysis of shallow and non-shallow arches with several cross sections and boundary and loads conditions are discussed. The computational platform used is the homemade CS-ASA, which performs advanced nonlinear static and dynamic analysis of structures. The nonlinear geometric effects are considered using a co-rotational finite element formulation; the material inelasticity is simulated by coupling the Refined Plastic Hinge Method (RPHM) with the Strain Compatibility Method (SCM), and the static nonlinear solution is based on an incremental-iterative strategy including continuation techniques. In the simulated nonlinear steel arch models, special attention is given to the equilibrium paths, the influence of rise-to-span ratio, support and loading conditions and full yield curves among other factors. The numerical results obtained show good agreement with those from literature and highlight that the arch rise-to-span ratio has great influence on the structure resistance and that the shallow arches can lose stability through the snap-through phenomenon.
URI: https://doi.org/10.1590/1679-78255941
http://repositorio.ufla.br/jspui/handle/1/42682
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