Publicação
An efficient non-linear GBT-based finite element for steel-concrete beams
| Resumo: | A computationally efficient GBT based beam finite element is presented, specifically developed for capturing the materially non-linear behaviour of wide flange steel concrete composite beams. The element incorporates shear lag effects, as well as concrete and steel non-linear material behaviour Analytical solutions for elastic shear lag problems are de rived and a set of materially linear and non-linear numerical examples is presented, showing that the proposed beam finite element captures accurately all relevant phenomena with a very small computational cost. For validation and comparison purposes, results obtained with shell/brick finite element models are also presented. |
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| Autores principais: | Henriques, David |
| Outros Autores: | Gonçalves, Rodrigo; Camotim, Dinar |
| Assunto: | Steel - concrete composite beams Shear Lag Non - linear behaviour Generalized Beam Theory (GBT) |
| Ano: | 2015 |
| País: | Portugal |
| Tipo de documento: | documento de conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade Nova de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório Institucional da UNL |
| Resumo: | A computationally efficient GBT based beam finite element is presented, specifically developed for capturing the materially non-linear behaviour of wide flange steel concrete composite beams. The element incorporates shear lag effects, as well as concrete and steel non-linear material behaviour Analytical solutions for elastic shear lag problems are de rived and a set of materially linear and non-linear numerical examples is presented, showing that the proposed beam finite element captures accurately all relevant phenomena with a very small computational cost. For validation and comparison purposes, results obtained with shell/brick finite element models are also presented. |
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