Analise numerica não-linear de estruturas de concreto armado considerando o fenomeno da aderencia entre o aço e o concreto / Non-linear numerical analysis of reinforced concrete structures considering the bond phenomena between the steel and the concrete

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

In this work aspects of the properties of the concrete, steel and the interaction between them, with particular interest in the deterioration of the bond that occurs in the steel-concrete interface that are necessary to the numerical analysis of reinforced concrete structures are studied. The main aim of this research is the development of a numerical model to simulate the reinforced concrete beams behavior, considering the nonlinear material and the effects of the slip between the reinforcement steel and the concrete. With the Finite Element Method and increment-iterative techniques, the behavior of the materials could be easily represented in the computational numerical model proposed, allowing the use of curves based on the stages of relationship between the local bond stress and the relative slip of the bar. The critical analysis have been done comparing the numerical model developed in this work with other numerical models and with experimental works, showing excellent results and very good efficiency of the present proposal

ASSUNTO(S)

concreto armado deformações e tensões bond stress material non-linearity materiais - propriedades reinforced concrete analise numerica computational model metodo dos elementos finitos finite element

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