Parametric analysis of constant‐moment zone length in four point bending of reinforced concrete beams

Galić, Mirela; Marović, Pavao; Harapin, Alen

doi:10.1002/mawe.201300149

Cited by 3 publications

(9 citation statements)

References 7 publications

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“…In the calculating procedure, if the value of the strain in each direction exceeds the prescribed maximum strain value in a Gauss point, the modulus of elasticity for that direction becomes 0, and material failure occurs in that direction. All mathematical formulations necessary for describing these procedures are defined in detail in [20][21][22].…”

Section: 12 X For Peer Reviewmentioning

confidence: 99%

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Model for the Simulation of the Time-Dependent State in RC Elements

2022

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The paper presents an upgrade of the previously developed model for nonlinear 3D analysis of concrete structures extended with the possibility of simulation of the long-term effects (shrinkage and creep) under long-term static load. The origin model is based on the so-called multi-surface principle with modified Rankin criterion for dominant tensile influences (appearance and development of cracks) and the modified Mohr-Coulomb criterion for dominant compressive states (yielding and cracking of concrete). The material behaviour is described with elementary material parameters (modulus of elasticity, Poisson’s coefficient and uniaxial compressive and tensile strength of concrete) by standard tests. Sufficient accuracy along with a simple and effective description of the very complex behaviour of reinforced concrete structures, make this model advantageous. Creep and shrinkage are based on the procedure given by the fib Model Code 2010 and extended with a special extension for non-linear creeping. Two simple examples show the capabilities of the model, while a good agreement between numerical and experimental results indicates that the developed model can well describe long-term effects in reinforced concrete structures, and that the model is appropriate for standard engineering practice.

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Section: 12 X For Peer Reviewmentioning

confidence: 99%

“…A detailed description of the model, the equations, the functions and the parameters is presented in Refs. [20,21], so only a brief review of this model is given in this paper.…”

Section: Introductionmentioning

confidence: 99%

Model for the Simulation of the Time-Dependent State in RC Elements

2022

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“…The displacement formulation was used for the structure and soil, while the displacement potential formulation was used for the fluid [9][10][11]. The nonlinear structural analysis model used is presented in [12][13][14], while the eigen problem calculation model is presented in [10].…”

Section: Brief Presentation Of Numerical Modelmentioning

confidence: 99%

“…A simple model, based on a small number of easily measurable physical parameters, previously developed at the Faculty of Civil Engineering, Architecture and Geodesy of the University of Split, is presented in this paper [12][13][14]. The model can be used to describe all dominant nonlinearities in the behaviour of reinforced concrete: flow in compression, opening and propagation of cracks in tension, and nonlinear behaviour of reinforcement: softening at yield stress.…”

Section: Numerical 3d Model Of Concrete Behaviourmentioning

confidence: 99%

Simulation of concrete ageing on dams as illustrated by numerical analysis of Jablanica HPP

Šunjić¹,

Prskalo²,

Milašinović³

et al. 2019

JCE

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Simulation of concrete ageing on dams as illustrated by numerical analysis of Jablanica HPPThe paper presents a model for numerical simulation of interaction between the fluid and the reinforced-concrete structure under seismic load for spatial 3D problems, with an emphasis of concrete dams. The model is based on the so called partition scheme for coupled (multi-field) problems. The model especially focuses on the concrete ageing effects, which has proven to be highly significant in the analysis of older structures. The paper starts with a brief description of the numerical model, which is followed by a more detailed description of the concrete ageing model, and by analysis of Jablanica hydropower plant (HPP) on which the validity of the model and related software was checked. Simulacija starenja betona brana na primjeru numeričke analize brane HE JablanicaRad prikazuje model za numeričku simulaciju međudjelovanja tekućine i armiranobetonske konstrukcije pod seizmičkim opterećenjem za prostorne 3D probleme, posebice betonske brane. Model je zasnovan na tzv. shemi odvojenih rješenja za probleme vezanih (višepoljnih) zadaća. Model posebice uključuje efekte starenja betona što se pokazalo vrlo bitnim kod analize starijih građevina. Prvo je vrlo kratko dan opis numeričkog modela, a zatim je detaljnije opisan model starenja betona i analiza brane HE Jablanica na kojoj je testirana valjanost modela i razvijenog softvera. Ključne riječi: betonska gravitacijska brana, numerički model, međudjelovanje tekućina-konstrukcija, proračun na potres, starenje betona Übersichtsarbeit Goran Šunjić, Maja Prskalo, Zoran Milašinović, Alen Harapin Simulation der Alterung von Betonstaudämmen am Beispiel der numerischen Analyse des Staudamms des Wasserkraftwerks Jablanica Die Arbeit zeigt ein Modell zur numerischen Simulation der Wechselwirkung von flüssigen und bewehrten Betonstrukturen unter seismischer Belastung für räumliche 3D-Probleme, insbesondere für Betonstaudämme. Das Modell basiert auf dem sog. Schema separater Lösungen für Probleme im Zusammenhang mit (mehrfeldigen) Aufgaben. Das Modell berücksichtigt insbesondere die Auswirkungen der Alterung von Beton, die sich bei der Analyse älterer Gebäude als sehr wichtig erwiesen hat. Zunächst werden eine sehr kurze Beschreibung des numerischen Modells gegeben, gefolgt von einer detaillierteren Beschreibung des Alterungsmodells des Betons und der Analyse des Staudamms des Wasserkraftwerks Jablanica, bei der die Gültigkeit des Modells und der entwickelten Software getestet wurde. Schlüsselwörter: Schwerkraftdamm aus Beton, numerisches Modell, Wechselwirkung Flüssigkeit-Struktur, Erdbebenberechnung, Betonalterung

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“…For this, it is necessary to know the nonlinear behaviour of the two materials, and the cracking of the concrete, so that the numerical model reflects the actual behaviour of the structure. In this context, the works of Cohn and Riva [1], Martins [2] and Galić et al [3] can be highlighted for the analysis of the behaviour of beams in the structural concrete, subjected to constant bending moments, for the different levels of loading. Subsequent works progressed in the study of the nonlinear behaviour of the structural concrete elements, with a focus on the variation of adhesion in elements submitted to gradients of bending moments, among which stand out: Manfredi and Pecce [4], Kwak and Kim [5], Oliveira et al [6] and Jayasinghe [7].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear analysis of reinforced concrete beams submitted to bending moment gradients considering the variable adhesion model

Xavier

Pereira

Pedroso

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

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The objective of this work is to evaluate the nonlinear behaviour of beam elements of structural concrete, subjected to asymmetric bending, delimited by two consecutive sections of discontinuity (cracks or open joints), considering the variable adhesion model. For this, two algorithms were developed using the MATLAB tool from the numerical solutions presented herein. The first refers to the equilibrium of sections subjected to asymmetric bending. The second calculates the equilibrium of sections considering the bond-slip effect, maintaining the Bernoulli-Navier hypothesis where perfect adhesion is no longer possible. Two numerical applications (simply supported beams) are used to validate and verify the efficiency of the developed models and algorithms. Results obtained shown that there is a good agreement with the experimental results found in the literature, characterising a good alternative for the evaluation of the nonlinear behaviour of beam elements, when there is a loss of adhesion.

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Parametric analysis of constant‐moment zone length in four point bending of reinforced concrete beams

Cited by 3 publications

References 7 publications

Model for the Simulation of the Time-Dependent State in RC Elements

Model for the Simulation of the Time-Dependent State in RC Elements

Simulation of concrete ageing on dams as illustrated by numerical analysis of Jablanica HPP

Nonlinear analysis of reinforced concrete beams submitted to bending moment gradients considering the variable adhesion model

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