NONLINEAR ANALYSIS OF RC FRAME ELEMENTS INCLUDING SHEAR EFFECTS

• Type: Article in International Conference Proceedings Book
• Date: 2011

Authors

D. Ferreira (Author) Other; Rui Faria (Author) FEUP; J.Bairán (Author) Other; A. Marí (Author) Other

Conference proceedings International

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

Pages: 113-133

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

Coimbra, Portugal, 24 - 25 November 2011

Indexing

ISI Web of Knowledge - 0 Citations

Scientific classification

FOS: Engineering and technology > Civil engineering

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 21