NONLINEAR ANALYSIS OF RC FRAME ELEMENTS INCLUDING SHEAR EFFECTS

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2011

Autores

D. Ferreira (Autor) Outra; Rui Faria (Autor) FEUP; J.Bairán (Autor) Outra; A. Marí (Autor) Outra

Ata de Conferência Internacional

Título: International Conference on Recent Advances in Nonlinear Models - Structural Concrete Applications

Páginas: 113-133

CoRAN 2011: International Conference on Recent Advances in Nonlinear Models - Structural Concrete Applications

Coimbra, Portugal, 24 - 25 November 2011

Indexação

ISI Web of Knowledge - 0 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia civil

Outras Informações

ID Authenticus: P-00P-6C1

Abstract (EN): A nonlinear FE model for the analysis of RC frame structures with the inclusion of shear effects is presented in this paper. This model is an expansion of the traditional fiber beam models to the cases where multiaxial behavior exists, being an alternative to the complex 3D models, thus more suitable for practical design in Civil Engineering. Shear effects are taken into account at different levels of the analysis: i) at the material level RC is simulated trough a smeared cracked model with rotating cracks; ii) at the fiber level, an iterative procedure guarantees equilibrium between concrete and transversal steel, allowing to compute the axial and the tangential strains of each fiber; iii) at the section level, a uniform shear stress pattern is assumed in order to estimate the internal shear stress-strain distribution; iv) at the element level, the Timoshenko beam theory takes into account an average rotation due to shear. The proposed model is validated through a benchmark available in literature.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 21