Static and dynamic analysis of reinforced concrete shells

Tamayo, Jorge Luis Palomino; Morsch, Inácio Benvegnu; Awruch, Armando Miguel

doi:10.1590/s1679-78252013000600003

Cited by 10 publications

(8 citation statements)

References 5 publications

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“…The equilibrium Equation (9), geometric relationships (10), material models for reinforcing steel (1) and concrete (8), and the cross-sectional model defined by Equations (11) and (12) form the problem within the technical theory of bar structures.…”

Section: Differential Discretization Of the Bar Elementmentioning

confidence: 99%

“…The non-linear analysis of the shear failure mechanism of reinforced concrete beams was presented in [10,11]. The nonlinear analysis carried out a using numerical algorithm for the reinforced concrete shells under static and dynamic loading were presented in [12]. The numerical analysis including material and geometrical nonlinearity with the influence of shear strength complementary mechanism for the reinforced concrete beams and frame were presented in [13].…”

Section: Introductionmentioning

confidence: 99%

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Dynamic Relaxation Method for Load Capacity Analysis of Reinforced Concrete Elements

Szcześniak¹,

Stolarski²

2018

Applied Sciences

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Section: Differential Discretization Of the Bar Elementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dynamic Relaxation Method for Load Capacity Analysis of Reinforced Concrete Elements

Szcześniak¹,

Stolarski²

2018

Applied Sciences

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“…The FE element presents five degrees of freedom at each node (three displacement and two rotations). The reinforcing mesh can be represented by an equivalent smeared layer within the element (Tamayo et al, 2013). A typical finite element is shown in Figure 3…”

Section: Concrete Slabmentioning

confidence: 99%

“…In Figure 1 is illustrated a typical portion of a steel-concrete composite beam as modeled in VIMIS (e.g. Tamayo et al 2013, Tamayo and Awruch, 2016, Moscoso et al 2017, Dias et al 2015. In this manner, the contribution of the present work can be summarized as follow: 1) Verification of Macorini et al's results with the present FE model in view of the lack of more results about the variation of the effective width along time; 2) Comparison of computed FE effective width ratios with some regulations (e.g.…”

Section: Introductionmentioning

confidence: 99%

Finite element study of effective width in steel-concrete composite beams under long-term service loads

Reginato

Tamayo

Morsch

2018

Lat. Am. j. solids struct.

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In this work, a finite element-based approach is presented to study the effective width variation in non-pre-stressed steel-concrete beams under the serviceability stage, including time dependent effects such as concrete creep, shrinkage and cracking. For this purpose, the viscoelasticity theory in conjunction with a nonlinear cracking monitoring algorithm is used to trace the nonlinear viscoelastic response of the structure along time. The present numerical model is fully three-dimensional and permits the inclusion of partial interaction at the slab-beam interface. A comprehensive study is carried out on the long-term response of a composite girder bridge previously studied by other researches. Then, previous results are revised and extended herein. Potential shortcomings of some standard codes related to the effective width evaluation are also investigated. It is demonstrated that the slab effective width varies sharply along the beam axis in the short-term, while it approaches to the actual slab width in the long-term. For the studied example, the common assumption of using only the middle layer of the reinforced concrete (RC) slab for the effective width calculation is revised with a through-thickness integration procedure. The influence of some creep and shrinkage models as well as the ultimate tensile concrete strain on the effective width response is also assessed. Finally, a simple formula is proposed to evaluate the short-term slab effective width for the studied example.

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“…Hence, a general three-dimensional numerical model is coded by using the Fortran programming language. The inelastic behavior of the soil mass, soil-pile interface and concrete piles (Tamayo et al, 2013) can be included in the present numerical model. Nevertheless, for the validation examples presented in this work, the influence of slipping at the soil-pile interface in the global response of the soil-pile system was found to be negligible and this effect can be omitted with safety.…”

Section: Latin American Journal Of Solids and Structures 13 (2016) 15mentioning

confidence: 99%

On the Validation of a Numerical Model for the Analysis of Soil-Structure Interaction Problems

Tamayo

Awruch

2016

Lat. Am. j. solids struct.

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Modeling and simulation of mechanical response of structures, relies on the use of computational models. Therefore, verification and validation procedures are the primary means of assessing accuracy, confidence and credibility in modeling. This paper is concerned with the validation of a three dimensional numerical model based on the finite element method suitable for the dynamic analysis of soil-structure interaction problems. The soil mass, structure, structure's foundation and the appropriate boundary conditions can be represented altogether in a single model by using a direct approach. The theory of porous media of Biot is used to represent the soil mass as a two-phase material which is considered to be fully saturated with water; meanwhile other parts of the system are treated as one-phase materials. Plasticity of the soil mass is the main source of non-linearity in the problem and therefore an iterative-incremental algorithm based on the NewtonRaphson procedure is used to solve the nonlinear equilibrium equations. For discretization in time, the Generalized Newmark-β method is used. The soil is represented by a plasticity-based, effective-stress constitutive model suitable for liquefaction. Validation of the present numerical model is done by comparing analytical and centrifuge test results of soil and soil-pile systems with those results obtained with the present numerical model. A soil-pilestructure interaction problem is also presented in order to shown the potentiality of the numerical tool.

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Static and dynamic analysis of reinforced concrete shells

Cited by 10 publications

References 5 publications

Dynamic Relaxation Method for Load Capacity Analysis of Reinforced Concrete Elements

Dynamic Relaxation Method for Load Capacity Analysis of Reinforced Concrete Elements

Finite element study of effective width in steel-concrete composite beams under long-term service loads

On the Validation of a Numerical Model for the Analysis of Soil-Structure Interaction Problems

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