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Article Dans Une Revue European Journal of Environmental and Civil Engineering Année : 2011

Damage mechanics applied to the seismic behavior of concrete structures

Shahrokh Ghavamian
  • Fonction : Auteur
Justine Bonenfant
  • Fonction : Auteur

Résumé

The seismic behavior of reinforced concrete structures is generally evaluated through modal spectral approaches, based on linear elastic analysis. In the case of seismic reevaluation of existing structures using traditional methods, since the nonlinear behavior of materials is not taken into account, these techniques often lead to an overestimation of the needs in reinforcement. In this contribution, it is proposed to highlight how including nonlinearity in the mechanical behavior of concrete and steel can improve the seismic evaluation of RC structures. For this purpose, a pushover technique is applied on an office building. Contrary to a classical approach, the progression of the failure mode and the mechanical degradation can be obtained and used to accurately elaborate the best retrofitting strategy. Some improvements of the constitutive laws are nevertheless needed if the use of this type of approaches is to be extended to more complex structures. However, the maturity of most constitutive models is not enough to allow industrial applications.
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Dates et versions

hal-02946632 , version 1 (16-04-2021)

Identifiants

Citer

Shahrokh Ghavamian, Ludovic Jason, Justine Bonenfant. Damage mechanics applied to the seismic behavior of concrete structures. European Journal of Environmental and Civil Engineering, 2011, 14 (6-7), pp.839-854. ⟨10.1080/19648189.2010.9693265⟩. ⟨hal-02946632⟩

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