Assessment of the Model Uncertainty in Shear Resistance of Reinforced Concrete Beams Without Shear Reinforcement
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Miroslav Sykora,
Milan Holicky
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| Transactions of the VSB - Technical University of Ostrava, Civil Engineering Series |
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2012, Volume 12, Issue 2, Pages 195-204
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Doi: 10.2478/v10160-012-0034-2
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The paper is focused on the model uncertainty related to shear resistance of reinforced concrete beams without special shear reinforcement considering available test results. Variation of the model uncertainty with basic variables is analysed and significant variables are identified for the section-oriented formula provided in EN 1992-1-1. Proposed probabilistic description of the model uncertainty consists of the lognormal distribution having the coefficient of variation of 0.15 and the mean value varying from 0.9 to 1.05 for beams with light to heavy longitudinal reinforcement.
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