Análise da configuração deformada em vigas e lajes nervuradas unidirecionais de concreto armado com consideração de fissuração

Abstract

Since the beginning of the invention of reinforced concrete a fundamental feature of this material is cracking when requested to tensile stresses. The prediction of displacements of reinforced concrete structures is quite complex, and cracking is an important variable. There are several problems involving excessive deformations, so the models that evaluate with accuracy the deformability of elements in reinforced concrete are essential. The present study analyzed the behavior of deflection in reinforced concrete sections according to models proposed by researchers. It was expected to evaluate the displacements obtained through theoretical models and compare them with experimental results. In practice, the prototypes did not reach stage II of deformation, and the research restricted the analysis to immediate arrow by means of theoretical models for the studied sections. The results obtained for the displacements were elucidative and didactic in order to contribute to the research in the scope of the analysis of structures in engineering.