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Revista IBRACON de Estruturas e Materiais

On-line version ISSN 1983-4195

Rev. IBRACON Estrut. Mater. vol.2 no.2 São Paulo June 2009

https://doi.org/10.1590/S1983-41952009000200004 

Smeared crack models for reinforced concrete beams by finite element method

 

 

R.c.g. MeninI; L.m. TrautweinII; T.n. BittencourtIII

IGrupo de Modelagem de Estruturas de Concreto / GMEC, Departamento de Engenharia de Estruturas e Geotécnica, Escola Politécnica da Universidade de São Paulo / EPUSP, renatomenin@gmail.com, Av. Prof. Almeida Prado tv.2, n.83 Cidade Universitária CEP 05508-900, São Paulo, Brasil
IIGrupo de Modelagem de Estruturas de Concreto / GMEC, Departamento de Engenharia de Estruturas e Geotécnica, Escola Politécnica da Universidade de São Paulo / EPUSP, leandromt@gmail.com, Av. Prof. Almeida Prado tv.2, n.83Cidade Universitária CEP 05508-900, São Paulo, Brasil
IIIGrupo de Modelagem de Estruturas de Concreto / GMEC, Departamento de Engenharia de Estruturas e Geotécnica, Escola Politécnica da Universidade de São Paulo / EPUSP, tbitten@gmail.com, Av. Prof. Almeida Prado tv.2, n.83, Cidade Universitária CEP 05508-900, São Paulo, Brasil

 

 


ABSTRACT

The main goal of the present work is to present a comparison between two different strategies for the computational simulation of reinforced concrete structures, both using smeared crack models to represent the behavior of the materials. As a first approach, a multidirectional smeared crack model available in DIANA has been adopted along with different softening rules for the cracked materials (brittle, linear, nonlinear of Moelands-Reinhardt and Hordijk). Additionally, the Disturbed Stress Field Model - DSFM has also been adopted to model cracked concrete as an orthotropic material with smeared rotating cracks. The finite element codes DIANA and VecTor2 have been used to evaluate the performance of the different smeared crack models to predict the behavior of reinforced concrete beams subjected primarily to flexure.

Keywords: smeared crack, reinforced concrete, finite element method.


 

 

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Received 21 December 2008
Accepted 17 March 2009
Published 26 June 2009

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