Calculating crackingdeformation in concrete
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Industry CPD [1]
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[1] Industry CPD
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- Localización: The Structural Engineer: journal of the Institution of Structural Engineer, ISSN 1466-5123, Vol. 100, Nº. 6, 2022, págs. 20-23
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
Thanks to a better understanding of material properties and advanced analysis tools, structural engineers are able to achieve more lightweight designs. As a result, comfort requirements are becoming increasingly important. For concrete beams and floors, maximum deflection often becomes the decisive criterion. But this raises new questions, such as: ‘How should deflections be calculated?’ and ‘What are the limit values for maximum deflections?’ Calculating deflections of reinforced concrete beams and floor slabs is a complex matter because the Young’s modulus of concrete evolves over time. In addition, when cracking is involved, the moment of inertia of a cross-section is far from constant along the length of a beam or floor slab. Advanced structural analysis software is, therefore, indispensable. This article discusses how to deal with those complex conditions in practice, according to EN 1992-1-1.
