Modeling of Shear Behavior in Reinforced Concrete Beams


  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal


Title: Modeling of Shear Behavior in Reinforced Concrete Beams

Author(s): Dario Coronelli and Maria Gabriella Mulas

Publication: Structural Journal

Volume: 103

Issue: 3

Appears on pages(s): 372-382

Keywords: beam; cracking; reinforced concrete; shear

Date: 5/1/2006

The purpose of this paper is to develop a reliable two-dimensional (2D) finite element (FE) modeling approach for the nonlinear behavior of reinforced concrete (RC) shear-critical elements. The proper kinematic field is achieved by using different finite elements for the concrete, steel, and the steel-concrete interface; separate constitutive models are formulated for each type of material. A modification of the 2D strength envelope of concrete in plane stress is proposed to consider the effects of triaxial-axial stress conditions in beams with small shear span-to-depth ratio. This approach allows successful comparison with experimental results on RC beams for a significant range of design parameters, load conditions, and reinforcement arrangements. Finally, a critical review of several modeling approaches in the literature is carried out.