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
DOI:
10.14359/15315
Date:
5/1/2006
Abstract:
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.