Fibre Concrete Foundation Slab Experiment and FEM Analysis

Čajka, Radim; Vaskova, Jana

doi:10.4028/www.scientific.net/kem.627.441

Cited by 19 publications

(18 citation statements)

References 11 publications

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“…Soil is heterogeneous material and its properties are different from idealization linear elastic isotropic homogeneous substance. Therefore, the calculated values of the settlement do not correspond with the real values measured in real buildings or during the experiments (Labudkova and Cajka, 2014;Cajka and Labudkova, 2015). Inhomogeneous half-space was used for the analysis of the interaction of subsoil and loaded steel-fibre reinforced concrete slab, reinforced concrete slab and also post-tensioned concrete slab.…”

Section: Numerical Analysismentioning

confidence: 98%

Experimental measurements of subsoil–structure interaction and 3D numerical models

Labudková

Čajka

2016

Perspectives in Science

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Use of combination of experimental measurements, tests in situ and numerical modelling is optimal approach to obtain reliable results of subsoil-structure interaction. Input data for numerical analyses were obtained by experimental loading tests of three different types of concrete slabs. Loading was performed out using experimental equipment. The unique experimental equipment was constructed in the area of Faculty of Civil Engineering, VŠB-TU Ostrava. Analyses of interaction of reinforced concrete slabs with subsoil were solved by application of inhomogeneous half-space. The main focus was to verify the aptness of application of inhomogeneous half-space in relation to the slab deformations in comparison of different types of reinforcements of concrete slab.

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Section: Numerical Analysismentioning

confidence: 98%

Experimental measurements of subsoil–structure interaction and 3D numerical models

Labudková

Čajka

2016

Perspectives in Science

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“…Steel fibre-reinforced concrete (SFRC) is a wellestablished building material [1,2] widely used for the construction of structures such as industrial pavements [3][4][5], sewer pipes [6][7][8], shotcrete linings [9,10], precast segmental linings [11][12][13][14] and foundation slabs [15,16] which are structurally redundant. SFRC is particularly attractive for such structures as it enables reinforcement and cross-sectional optimizations, simplification of the casting procedure, and durability improvement due to the enhanced crack opening control.…”

Section: Introductionmentioning

confidence: 99%

Characterization tests for predicting the mechanical performance of SFRC floors: design considerations

et al. 2021

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The paper presents an experimental program carried out to check the load bearing capacity of a steel fibre reinforced concrete (SFRC) floor in northern Italy. The extensive mechanical characterization focused on the suitability of 3 non-standardized test methods for quality control and tensile constitutive curve assessment was performed, this consisting of: uniaxial tensile test (UTT), double edge wedge splitting test (DEWST) and double punching test (DPT) to characterize the post-cracking mechanical properties of the material. The joint experimental programme, carried out at the Politecnico di Milano and at the Universitat Politècnica de Catalunya, included the flexural characterization of four shallow beams (1.5 × 0.5 × 0.25 m3) and six standard notched beams (0.55 × 0.15 × 0.15 m3). All the samples were produced from the same batch and with the same SFRC mix which was applied for the floor. After that, 192 cores were drilled from the shallow beams and subjected to either UTTs, DEWSTs or DPTs. The stress level, the scatter and the constitutive curves derived from the non-standardized tests were identified and analysed. The calculated constitutive curves were used to predict the behaviour of the shallow beams.

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“…Researches on subsoil-structure interaction have been intensively done over recent years. Those studies have covered many aspects of the interaction [1], [2], [3], [4], [5], [6] and [7]. For instance, R. Cajka 2013 presented a method of determination of friction parameters for soilstructure interaction [5].…”

Section: Introductionmentioning

confidence: 99%

“…For instance, R. Cajka 2013 presented a method of determination of friction parameters for soilstructure interaction [5]. Stress strain analysis of elastic half-space using Gauss numerical integration and Jacobean of transformation was conducted by R. Cajka in 2013 [6] and results were further analyzed by R. Cajka and J. Labudkova in 2015 [7].…”

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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Fibre Concrete Foundation Slab Experiment and FEM Analysis

Cited by 19 publications

References 11 publications

Experimental measurements of subsoil–structure interaction and 3D numerical models

Experimental measurements of subsoil–structure interaction and 3D numerical models

Characterization tests for predicting the mechanical performance of SFRC floors: design considerations

Numerical Analysis of Subsoil-Reinforced Concrete Slab Interaction

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