Model Uncertainty for Shear Resistance of Reinforced Concrete Beams with Shear Reinforcement According to EN 1992-1-1
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Miroslav Sykora,
Milan Holicky,
Jan Krejsa
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| Transactions of the VSB - Technical University of Ostrava, Civil Engineering Series |
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2013, Volume 13, Issue 2, Pages 150-159
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Doi: 10.2478/tvsb-2013-0022
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The submitted contribution is focused on the model uncertainty related to shear resistance of reinforced concrete beams with 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 about 0.25 and the mean significantly varying with the strength of shear reinforcement.
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