RC hollow-pier modelling and shear influence on the cyclic numerical response

• Type: Article in International Conference Proceedings Book
• Date: 2009

Authors

António Arêde (Author) FEUP; Nelson Vila Pouca (Author) FEUP; André Monteiro (Author) FEUP; Pedro Delgado (Author) FEUP; Aníbal Costa (Author) FEUP; Raimundo Delgado (Author) FEUP

Conference proceedings International

Title: Proceedings of COMPDYN 2009 - 2nd International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering

Pages: 203-219

COMPDYN 2009 - 2nd International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering

Rhodes, Greece, 22-24 June 2009

Scientific classification

FOS: Engineering and technology > Civil engineering

CORDIS: Technological sciences > Engineering > Civil engineering > Structural engineering

Other information

Abstract (EN): Non-linear reinforced concrete bridge piers’ cyclic behavior is known for being influenced by shear. That is particularly visible in the case of hollow piers where the deformation and collapse mechanisms are frequently shear-based. Since the design codes are still relatively conservative regarding the evaluation of those effects, this work intends to present the influence that shear has on the numerical response of hollow piers, as well as providing a basis for the discussion of adequate modeling strategies. The studies related to this work were based on several finite element models, wherein concrete was represented by 3D elements while steel reinforcement was represented by linear bar elements. Concrete non-linear behavior was simulated according to a damage model that determines the stress state in the principal directions space, resorting to two independent scalar damage variables representing the compressive or tensile accumulated damage. Steel reinforcement was simulated according to the features of the Menegotto-Pinto model. The aforementioned models were calibrated with the experimental data taken from the tests made at LESE (Laboratory of Earthquake and Structural Engineering) from FEUP (Faculty of Engineering of University of Porto) on reduced scale (1:4) physical models. The numerical analyses were made with the structural analysis software CAST3M.

Language: English

Type (Professor's evaluation): Scientific