Interactive graphical application for modeling reinforced concrete structures
Pamela Daniela Nogueira, Roque Luiz da Silva Pitangueira
CILAMCE 2017 – XXXVIII Ibero-Latin American Congress on Computational Methods in Engineering , Florianópolis , 2017
Resumo (em inglês)
The advent of computer methods combined with the large amount of studies related to the structural engineering field, and, more specifically, related to structures in reinforced concrete, leads to the development of numerical models that improve the prediction of the behavior of these structures. Among several developed models, the models based on the Finite Element Method (FEM) have shown to be powerful tools for the analysis of reinforced, simple and prestressed concrete structures. In this context, the inclusion of the reinforcement in the analysis of reinforced concrete structures can be made using three different models: discrete reinforcement model, embedded reinforcement model and smeared reinforcement model. In the first two models, the phenomenon of bond-slip can be included, making them more realistic and, therefore, more popular. In this sense, this paper presents an interactive graphical application for modeling reinforced concrete structures by FEM, allowing to considering the bond-slip phenomenon. The reinforcement is incorporated through discrete model, with bond-slip phenomenon simulated by nodal springs or by contact elements. The INSANE system (INteractive Structural ANalysis Environment), a free software developed at the Department of Structural Engineering of the Federal University of Minas Gerais, is used in the implementation.