Triaxial Material Model for Concrete Structures Under Cyclic Loading

Abstract eng:
This paper presents the formulation of a material model for the analysis of concrete under multiaxial, cyclic loading conditions, and its use for the analysis of failure of reinforced concrete structures. The model combines an elastoplastic formulation with a non-associative flow rule to capture compression-dominated behavior and a rotating smeared-crack model to capture the tension-dominated behavior. The proposed formulation resolves the issues which exist in many available concrete material models, related to properly capturing the crack opening and closing behavior and accounting for the effect of confinement on the strength and ductility under compression-dominated stress states. The concrete material model is combined with a constitutive model for reinforcing steel which can account for the hysteretic response and for the material failure due to low-cycle fatigue. Validation analyses for reinforced concrete components show that the analytical models can capture the damage patterns and the hysteretic response.

• Export as: BibTeX | MARC | MARCXML | DC | EndNote | NLM | RefWorks
• Add to your basket