Journal of Materials and Engineering Structures
Volume 10, Numéro 4, Pages 495-511
2023-12-30

Effects Of Probabilistic Characterization Of Soil Parameters And Ssi On The Seismic Vulnerability Of A Reinforced Concrete Structure

Authors : Henni Fodil . Zoutat Meriem . Mekki Mohammed . Hemsas Miloud . Hentri Mohammed .

Abstract

This article targets two objectives: to identify the most influential sources of uncertainty by analyzing the effects of the probabilistic characterization of two soil parameters on the soil-structure interaction system. The second is to determine the seismic fragility curves of a structure by considering the epistemic uncertainty due to the correlation between V_s and ξ_g. To achieve these objectives, a 9-story reinforced concrete structure was studied considering different soil types. The analysis of the results showed that the influence of the correlation coefficient and the coefficient of variation are not the same for all soil types. Indeed, these coefficients play a major role in estimating the structural response for very soft soils, which is less true for soft, hard and rocky soils. It has also been shown that epistemic uncertainty plays the most important role in damage assessment.

Keywords

Soil-structure interaction ; Shear wave velocity ; Uncertainties ; Variability