Assessment of model uncertainties in the analysis of reinforced concrete structures

Abstract eng:
Numerical methods of structural analysis enable consideration of material and geometrical non-linearity of reinforced concrete structures. While the effect of variability of materials and geometry can be relatively well described, the model uncertainty is not yet well understood. The present contribution is, therefore, focused on resistance model uncertainties in the analysis of reinforced concrete structures. Simple engineering formulas (beam models, section-oriented approaches) as well as complex numerical solutions are considered. To facilitate practical applications the partial factors for the model uncertainties related to various types of the analysis are derived using the design value method.

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