Application of an Inhomogeneous Halfspace for the Solution of Foundation-Subsoil Interaction based on the Finite Element Method

Labudkova, J.; Čajka, Radim

doi:10.4203/ccp.108.9

Cited by 3 publications

(3 citation statements)

References 15 publications

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“…3. Based on a parametric study [6], [7], [8], an area representing the subsoil was 8.0 x 8.0 x 8.0 m. Physical nonlinearity associated with material properties was used. The nonlinear material model was performed by Drucker-Prager model (Fig.…”

Section: Numerical Analyses In Ansysmentioning

confidence: 99%

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Interaction of Nonlinear Numerical Model of SFRC Slab and Nonlinear Numerical Subsoil Model

Vaskova¹,

Čajka²

2018

GEOMATE

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Experimental measurements of the concrete slab in interaction with subsoil are compared with numerical analysis based on Finite Element Method FEM. Experimental measurements are conducted with using an experimental device constructed at the Faculty of Civil Engineering VSB -Technical University of Ostrava. In the article, several types of nonlinearities enter into FEM analysis. Subsoil-structure interaction requires an iterative solution procedure -and therefore structural nonlinearity. Material nonlinearity was used in the numerical model of the slab. This model also allows the creation and development of cracks in concrete -similar as during the experimental load test. Material nonlinearity was also used in the numerical model subsoil -to ensure of apposite subsoil behavior. The purpose of this paper is to compare resulting deformation of the slab with values observed during experimental loading test. It was concluded that the good agreement between the experimental results and numerical simulation was observed.

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Section: Numerical Analyses In Ansysmentioning

confidence: 99%

“…It has been proven by parametric analysis in author´s articles, eg. [6], [8]. Important parameters influencing the results of the numerical analysis are, among other, the size of the modeled area representing the subsoil, the choice of boundary conditions or mesh size.…”

Section: Fig 12 Deformation Of the Model Slab With Cracksmentioning

confidence: 99%

Interaction of Nonlinear Numerical Model of SFRC Slab and Nonlinear Numerical Subsoil Model

Vaskova¹,

Čajka²

2018

GEOMATE

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“…The load tests are performed within the individual doctoral dissertations at the Faculty of Civil Engineering, and especially in the context of scientific research projects. Several load tests and their results are described in more detail in [11], [12], [13], [14], [15], [16], [17], [18], [19]. The testing equipment shown in Fig.…”

Section: Experimental Load Testsmentioning

confidence: 99%

3D Numerical Model of the Subsoil-Structure Interaction and Comparison of the Results with Experimentally Measured Values

Vaskova

Čajka

2017

KEM

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The influence of the physically-nonlinear behaviour of the structure and interaction between the upper structure and foundation are the aspects which influence the results of the subsoil-structure interaction analysis. The experimental measurement of stress and strain and monitoring of stress-strain relations by interaction of foundation structures with subsoil are also performed at the Faculty of Civil Engineering, VŠB-TU Ostrava. Numerical analyses of contact task was made with FEM. The test sample for the task was a steel-fibre reinforced concrete foundation slab model loaded during experimental loading test. The calculated values of the subsidence do not correspond to the measured values of foundation subsidence of existing buildings, or values measured during the experiments. Results of the solutions are also different and depend on the choice of the model of the subsoil. Using several FEM software tools were made numerical analyses. Results of FEM analyses were also confronted with the values measured during the experiment.

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Numerical Analyses of Subsoil-structure Interaction in Original Non-commercial Software based on FEM

Čajka

Vaskova

Vasek

2018

IOP Conf. Ser.: Earth Environ. Sci.

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Application of an Inhomogeneous Halfspace for the Solution of Foundation-Subsoil Interaction based on the Finite Element Method

Cited by 3 publications

References 15 publications

Interaction of Nonlinear Numerical Model of SFRC Slab and Nonlinear Numerical Subsoil Model

Interaction of Nonlinear Numerical Model of SFRC Slab and Nonlinear Numerical Subsoil Model

3D Numerical Model of the Subsoil-Structure Interaction and Comparison of the Results with Experimentally Measured Values

Numerical Analyses of Subsoil-structure Interaction in Original Non-commercial Software based on FEM

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