Finite Element Model for Curved Embedded Reinforcement

Elwi, Alaa E.; Hrudey, T. M.

doi:10.1061/(asce)0733-9399(1989)115:4(740)

Cited by 92 publications

(79 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The models were implemented in a finite element program originally developed by Hinton [29] and, in order to consider reinforcing bars in it, the embedded reinforcement model proposed by Elwi and Hrudey [10] was used after its extension to the 3D case. A uniaxial constitutive model with bilinear elastic with work-hardening was implemented to represent steel's stress-strain curve.…”

Section: A 3d Finite Element Model For Reinforced Concrete Structuresmentioning

confidence: 99%

“…The constitutive models adopted for concrete and steel are herein described in details, and have been implemented in a computational code, developed by Bono [9], to analyze reinforced concrete structures through the Finite Element Method. Linear and quadratic isoparametric hexahedral elements can be chosen to model reinforced concrete structures, with the embedded reinforcing model proposed by Elwi and Hrudey [10] extended to the 3D case being used to represent the existent reinforcing bars.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A 3D finite element model for reinforced concrete structures analysis

Bono

Filho

Pacheco

2011

Rev. IBRACON Estrut. Mater.

View full text Add to dashboard Cite

This work presents a numerical model for 3D analyses through the finite element method of reinforced concrete structures subjected to monotonic loads. The proposed model for concrete is orthotropic and uses the equivalent uniaxial strain concept. The equivalent uniaxial stress-strain relation is generalized to take into account the triaxial stress conditions. The parameters used in the equivalent uniaxial stress-strain curve are determined from the failure surface defined in the principal stress space. The implementation in finite elements is based on the consideration of smeared cracks with cracks rotating according to the directions of the principal stresses. Also, an embedded reinforcement model was implemented to represent existent reinforcing bars. Finally, some results are compared with experimental data from the literature to demonstrate the validity of the numerical model developed.Keywords: reinforced concrete; finite element method; constitutive models; orthotropic model. Este trabalho apresenta um modelo numérico para análise tridimensional de estruturas de concreto armado submetidas a cargas monótonas. O modelo proposto para o concreto é um modelo ortotrópico e utiliza o conceito de deformação uniaxial equivalente. A relação tensão-deformação uniaxial equivalente é generalizada para levar em consideração as condições triaxiais de tensão. Os parâmetros usados na curva tensão-deformação uniaxial equivalente são determinados a partir da superfície de ruptura definida no espaço de tensões principais. Também, implementouse um modelo de armadura incorporada para representar as barras de armadura. Por fim, apresentam-se resultados comparativos com ensaios experimentais e analíticos para demonstrar a validade do modelo numérico. Civil and Environmental Engineering, Federal University of Pernambuco, giuliana.franca@gmail.com, BR 104, Km 59, S/N, Nova Caruaru, Caruaru, Pernambuco, Brazil b Graduate Program in Civil Engineering, Federal University of Rio Grande do Sul, americo@ufrgs.br, apacheco@ufrgs.br, Av. Osvaldo Aranha -99, 3º andar, 90035-190, Porto Alegre, Rio Grande do Sul, Brazil Received: 07 Feb 2011 • Accepted: 03 Jun 2011 • Available Online: 07 Oct 2011 Abstract Resumo Palavras

show abstract

Section: A 3d Finite Element Model For Reinforced Concrete Structuresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A 3D finite element model for reinforced concrete structures analysis

Bono

Filho

Pacheco

2011

Rev. IBRACON Estrut. Mater.

View full text Add to dashboard Cite

show abstract

“…As it was described in [8], when modeling 3D RC structures with the finite element (FE) method, three main approaches are available for the simulation of reinforcement: smeared, discrete, and embedded [9][10][11]. The smeared and discrete formulations have been found to be unsuitable for complicated reinforcement grid geometries thus undergo several restrictions when implemented.…”

Section: Introductionmentioning

confidence: 99%

Generating Embedded Rebar Elements for Large-Scale Rc Models

Markou¹,

Papadrakakis²

2014

Proceedings of the 3rd South-East European Conference on Computational Mechanics (SEECCM III)

View full text Add to dashboard Cite

show abstract

“…Figure 1 shows a comparison of the required meshes for analyses using the discrete and embedded methods. Details of the embedded method may be found in [5], [8] and [1]. The reinforcement bars are considered by transferring their stiffness to that of surrounding solid elements.…”

Section: Introductionmentioning

confidence: 99%