A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Failure behavior modeling of slender reinforced concrete columns subjected to eccentric load
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) ; Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) ; This work presents a numerical model to simulate the failure behavior of slender reinforced concrete columns subjected to eccentric compression loads. Due to the significant influence of the lateral displacements on the loading state provided by an eccentric load, geometric nonlinearity is considered. The responses of the concrete in tension and compression are described by two scalar damage variables that reduce, respectively, the positive and negative effective stress tensors, which lead to two different damage surfaces that control the dimension of the elastic domain. To describe the behavior of the reinforcements, truss finite elements with elastoplastic material model are employed. Interaction between the steel bars and concrete is modeled through the use of interface finite elements with high aspect ratio and a damage model designed to describe the bond-slip behavior. The results showed that the numerical model is able to represent the nonlinear behavior of slender concrete columns with good accuracy, taking into account: formation of cracks steel yielding crushing of the concrete in the compressive region and interaction between rebars and concrete.
Failure behavior modeling of slender reinforced concrete columns subjected to eccentric load
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) ; Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) ; This work presents a numerical model to simulate the failure behavior of slender reinforced concrete columns subjected to eccentric compression loads. Due to the significant influence of the lateral displacements on the loading state provided by an eccentric load, geometric nonlinearity is considered. The responses of the concrete in tension and compression are described by two scalar damage variables that reduce, respectively, the positive and negative effective stress tensors, which lead to two different damage surfaces that control the dimension of the elastic domain. To describe the behavior of the reinforcements, truss finite elements with elastoplastic material model are employed. Interaction between the steel bars and concrete is modeled through the use of interface finite elements with high aspect ratio and a damage model designed to describe the bond-slip behavior. The results showed that the numerical model is able to represent the nonlinear behavior of slender concrete columns with good accuracy, taking into account: formation of cracks steel yielding crushing of the concrete in the compressive region and interaction between rebars and concrete.
Failure behavior modeling of slender reinforced concrete columns subjected to eccentric load
Rodrigues, Eduardo Alexandre (author) / Manzoli, Osvaldo Luís (author) / Bitencourt Júnior, Luís Antônio Guimarães (author) / Prazeres, Plínio Glauber C. dos (author) / Bittencourt, Túlio Nogueira (author) / Universidade Estadual Paulista (UNESP)
2015-01-01
orcid:0000-0001-9004-7985
Article (Journal)
Electronic Resource
English
DDC:
690
Behavior of slender reinforced concrete columns subjected to eccentric loading
| British Library Conference Proceedings | 1997
Behavior of slender reinforced concrete columns subjected to eccentric loading
| British Library Conference Proceedings | 1997
| British Library Conference Proceedings | 2012
| Trans Tech Publications | 2012