Experimental Soil - Concrete Plate Interaction Test and Numerical Models

Čajka, Radim; Burkovič, Kamil; Buchta, Vojtěch; Fojtík, Roman

doi:10.4028/www.scientific.net/kem.577-578.33

Cited by 29 publications

(21 citation statements)

References 10 publications

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“…From the graph it is observed that, as the thickness of the slab increases, the variations of the stresses decrease, evidenced by the reduction in the curvature, which shows the stiffness contribution of the slab with the action of the load, supported every time in better foundation resistance. It is also observed that from 350 MPa, the soil tends to have less stress influence, corroborating what was expressed by authors and institutions (Cajka, Burkovic, Buchta, & Fojtik, 2014;PCA, 1984;Yoder & Witczak, 1975), who point out that improvements of the support layer do not have a structural purpose, these layers are placed to reduce the effect of erosion and the rise of fine materials to the surface (pumping). However, the improvement of the properties of the foundation, contributes slightly to improve the behavior of the system, which is a factor to be taken into account in the obtaining of the work stresses, especially when the slab is thin.…”

Section: Supportsupporting

confidence: 84%

3D-FE of jointed plain concrete pavement over continuum elastic foundation to obtain the edge stress

López¹,

Piusseaut²,

Veliz

et al. 2020

rdlc

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The article presents the results of computational modeling of a rigid pavement with load applied to the edge of the slab, for which a multipurpose software (ABAQUS / CAE) based on the finite element method is used. First, it is explained in detail how computational modeling is performed, taking as reference two types of rigid pavements (pavement with and without concrete shoulder). In the process, the main characteristics and hypotheses taken to model the load, the edge conditions and the characteristics of the materials are presented. The mesh density and the finite element type to be used are also analyzed, based on an experimental design. In order to reduce computation times, studies were conducted to make geometric simplifications to the domain. The final solution is contrasted with the Westergaard´s theory and the results of a finite element software already experimentally validated according to the bibliography (EverFE v2.24). Studies of some of the most important factors for pavement designing were conducted. Finally, graphs are shown in specific conditions of geometry and materials, which will serve as practical tools for use in design methods.

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Section: Supportsupporting

confidence: 84%

3D-FE of jointed plain concrete pavement over continuum elastic foundation to obtain the edge stress

López¹,

Piusseaut²,

Veliz

et al. 2020

rdlc

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“…In addition, experimental measurements of stress and subsidence in subsoil were also carried out by many researchers such as G.X. Mei et al 2005 [8], Cajka et al 2014 [9] and [10]. M. Mohyla et al 2017 [11] analyzed stress under foundation slab with a physical surface interface between foundation slab and the subsoil by experimental measurement.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Subsoil-Reinforced Concrete Slab Interaction

Le¹,

Nguyen²,

Čajka³

2019

TCES

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This article presents the numerical modeling of interaction between a reinforced concrete slab and subsoil using ABAQUS. Subsoil was simulated as both homogeneous half-space and inhomogeneous half-space. Reinforcement bars in the concrete slab were accurately modelled allowing capturing a precise deformation profile of the slab in interaction with subsoil. Input data for numerical analysis were adopted from a published work. Results of the study were verified on the basis of comparison with those of the previous study.

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“…The values were compared and impacts of 3D numerical model parameters on final deformation and internal forces in the steel-fibre reinforced foundation slab were evaluated. Another experimental loading tests and their results are also described in [2,3,6,7,8,11,19,20,21].…”

Section: Introductionmentioning

confidence: 99%

3d Numerical Model in Nonlinear Analysis of the Interaction Between Subsoil and SFCR Slab

Labudková¹,

Čajka²

2017

GEOMATE

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For decades attention has been paid to interaction of foundation structures and subsoil and, in turn, to development of interaction models. Complexity of a static solution is given mainly by selection of a computational model, effects of physical-nonlinear behaviour of such structure and co-effects of the upper structure and the foundation structure. ). Input data for numerical analysis were observed experimental loading test of steel-fibre reinforced concrete slab. The loading was performed using unique experimental equipment which was constructed in the area Faculty of Civil Engineering, VŠB-TU Ostrava. Homogeneous half-space this takes no account and calculated settlement is strongly dependent on the size of the subsoil model, as parametric study demonstrated. The modulus of deformability changes continuously, depending on the depth, in the inhomogeneous half-space. Values calculated by 3D numerical model were compared with values measured during the loading test of steel-fibre concrete slab.

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Experimental Soil - Concrete Plate Interaction Test and Numerical Models

Cited by 29 publications

References 10 publications

3D-FE of jointed plain concrete pavement over continuum elastic foundation to obtain the edge stress

3D-FE of jointed plain concrete pavement over continuum elastic foundation to obtain the edge stress

Numerical Analysis of Subsoil-Reinforced Concrete Slab Interaction

3d Numerical Model in Nonlinear Analysis of the Interaction Between Subsoil and SFCR Slab

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