MEKKI, Mohammed; HEMSAS, Miloud; ZOUTAT, Meriem; ELACHACHI, Sidi M.

doi:10.12989/eas.2022.22.3.219

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

Langue

Article de revue

Ce document a été publié dans

Earthquakes and Structures. 2022-03-01, vol. 22, n° 3, p. 219-230

Résumé en anglais

Knowing that the variability of soil properties is an important source of uncertainty in geotechnical analyses, we will study in this paper the effect of this variability on the seismic response of a structure within the framework of Soil Structure Interaction (SSI). We use the proposed and developed model (N2-ISS, Mekki et al. 2014). This approach is based on an extension of the N2 method by determining the capacity curve of the fixed base system oscillating mainly in the first mode, then modified to obtain the capacity curve of the system on a flexible basis using the concept of the equivalent nonlinear oscillator. The properties of the soil that we are interested in this paper will be the shear wave velocity and the soil damping. These parameters will be modeled at first, as independent random fields, then, the two parameters will be correlated. The results obtained showed the importance of the use of random field in the study of SSI systems. The variability of soil damping and shear wave velocity introduces significant uncertainty not only in the evaluation of the damping of the soil-structure system but also in the estimation of the displacement of the structure and the base-shear force.< Réduire

Mots clés en anglais

Damping

Seismic performance

Shear wave velocity

Soil structure interaction

Uncertainty

Variability

Métadonnées

Partager cette publication !

Licence d’utilisation du document

Effects of soil-structure interaction and variability of soil properties on seismic performance of reinforced concrete structures

Langue

Ce document a été publié dans

Résumé en anglais

Mots clés en anglais

URI

DOI

Unités de recherche