scholarly journals Modern numerical modeling of reinforced concrete structures

2021 ◽  
Vol 22 ◽  
pp. 13-20
Author(s):  
Zsolt Roszevák ◽  
István Haris
Keyword(s):  
Finite Element ◽  
Numerical Modeling ◽  
Reinforced Concrete ◽  
Numerical Experiments ◽  
Numerical Models ◽  
Concrete Structures ◽  
Nonlinear Finite Element ◽  
Reinforced Concrete Structures ◽  
Finite Element Software ◽  
Modeling Procedure

Nowadays, many computer software products are available for the numerical modeling of reinforced concrete structures; however, the accuracy of the numerical models created by the programs can only be accepted with a properly developed and verified modeling procedure. Within the framework of the present article, we present the numerical modeling possibilities of reinforced concrete structural elements and their connections through numerical models made by a modeling procedure we have built. In our studies, we also dealt with quasi-static unidirectional (horizontal and vertical) and cyclically variable direction and magnitude loads. The numerical models were created using the ATENA 3D three-dimensional nonlinear finite element software developed specifically for the study of concrete and reinforced concrete structures. In many cases, the results obtained by numerical experiments were compared with the results obtained by laboratory experiments, and some of our numerical experiments were compared with the results obtained using two-dimensional finite element software. Within the framework of this article, we would like to give a comprehensive picture of the numerical studies we have performed. We have also briefly summarized the results and experiences obtained from 3D nonlinear finite element studies.

scholarly journals Estimation of the pull-off resistance models of reinforced concrete structures by a numerical method

2021 ◽  
Vol 350 ◽  
pp. 00011
Author(s):  
Mikalai Shalabyta ◽  
Elizabeth Matweenko ◽  
Nikifor Matweenko ◽  
Valery Rakhuba
Keyword(s):  
Numerical Modeling ◽  
Reinforced Concrete ◽  
Comparative Analysis ◽  
Strain State ◽  
Numerical Models ◽  
Tensile Force ◽  
Concrete Structures ◽  
Reinforced Concrete Structures ◽  
New Information ◽  
Concrete Elements

Comparative analysis of calculations of calculation numerical models for pulling out embedded parts in reinforced concrete structures is carried out. Based on the results of numerical modeling, new information about the stress-strain state in reinforced concrete elements from the local action of the tensile force has been obtained.

scholarly journals Numerical-computational analysis of reinforced concrete structures considering the damage, fracture and failure criterion

2013 ◽  
Vol 6 (1) ◽  
pp. 101-120 ◽  
Author(s):  
L. A. F. de Souza ◽  
R. D. Machado
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Numerical Models ◽  
Classical Model ◽  
Concrete Structures ◽  
Constitutive Models ◽  
Reinforced Concrete Structures ◽  
Element Discretization ◽  
Structural Parts ◽  
Elastoplastic Constitutive Model

The experimental results of testing structures or structural parts are limited and, sometimes, difficult to interpret. Thus, the development of mathematical-numerical models is needed to complement the experimental analysis and allow the generalization of results for different structures and types of loading. This article makes two computational studies of reinforced concrete structures problems found in the literature, using the Finite Element Method. In these analyses, the concrete is simulated with the damage classical model proposed by Mazars and the steel by a bilinear elastoplastic constitutive model. Numerical results show the validity of the application of constitutive models which consider the coupling of theories with the technique of finite element discretization in the simulation of linear and two-dimensional reinforced concrete structures.

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