<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Formulae for the deflection of two examples of isostatic systems (simply supported beam, cantilever) were derived, accounting for influence of distribution of bending moments on cracking and beam stiffness distribution, according to EC2. Numerical analysis of the problem for the same two examples as well as for two further hyperstatic systems was performed using an iterative FEM algorithm. The influence of nonuniformity of cracking on deflection and distribution of bending moments was shown to be negligible in typical practical design problems, therefore also an estimation of deflection on the basis of the distribution of bending moments and the value of the factor α<italic><sub>k</sub></italic> obtained from linear solution (before redistribution) is shown to be justified.</p></abstract>

Formulae for the deflection of two examples of isostatic systems (simply supported beam, cantilever) were derived, accounting for influence of distribution of bending moments on cracking and beam stiffness distribution, according to EC2. Numerical analysis of the problem for the same two examples as well as for two further hyperstatic systems was performed using an iterative FEM algorithm. The influence of nonuniformity of cracking on deflection and distribution of bending moments was shown to be negligible in typical practical design problems, therefore also an estimation of deflection on the basis of the distribution of bending moments and the value of the factor αk obtained from linear solution (before redistribution) is shown to be justified.

Influence of non-uniformity of cracking on calculation of deflection of reinforced-concrete elements, according to eurocode 2

Technical Transactions

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Formulae for the deflection of two examples of isostatic systems (simply supported beam, cantilever) were derived, accounting for influence of distribution of...

Influence of non-uniformity of cracking on calculation of deflection of reinforced-concrete elements, according to eurocode 2

Publié en ligne: 23 mai 2020

Pages: 131 - 142

DOI: https://doi.org/10.4467/2353737XCT.17.054.6365

Mots clés
reinforced-concrete, cracking, deflection, Eurocode

© 2017 Paweł Szeptyński, published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

Influence of non-uniformity of cracking on calculation of deflection of reinforced-concrete elements, according to eurocode 2

Publié en ligne: 23 mai 2020

Pages: 131 - 142

DOI: https://doi.org/10.4467/2353737XCT.17.054.6365

Mots clésreinforced-concrete, cracking, deflection, Eurocode

© 2017 Paweł Szeptyński, published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

Mots clés
reinforced-concrete, cracking, deflection, Eurocode