Issue 39

J. Labudkova et alii, Frattura ed Integrità Strutturale, 39 (2017) 47-55; DOI: 10.3221/IGF-ESIS.39.06 47 Focussed on Modelling in Mechanics Numerical analyses of interaction of steel-fibre reinforced concrete slab model with subsoil Jana Labudkova VŠB-Technical University of Ostrava jana.labudkova@vsb.cz , http://orcid.org/0000-0003-0562-0842 Radim Cajka VŠB-Technical University of Ostrava radim.cajka@vsb.cz , http://orcid.org/0000-0002-2346-062X A BSTRACT . Numerical analyses of contact task were made with FEM. The test sample for the task was a steel-fibre reinforced concrete foundation slab model loaded during experimental loading test. Application of inhomogeneous half-space was used in FEM analyses. Results of FEM analyses were also confronted with the values measured during the experiment. K EYWORDS . Foundation structure; Subsoil–structure interaction; FEM; Steel- fibre reinforced concrete. Citation: Labudkova, J., Cajka, R., Numerical analyses of interaction of steel-fibre reinforced concrete slab model with subsoil, Frattura ed Integrità Strutturale, 39 (2017) 47- 55. Received: 20.07.2016 Accepted: 19.09.2016 Published: 01.01.2017 Copyright: © 2017 This is an open access article under the terms of the CC-BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. I NTRODUCTION oundation structure and subsoil are interdependent, and therefore the effect of the foundation soil loaded with the topside structure cannot be neglected. The analysis must take the interaction of the foundation structure with subsoil into account. The main effort of solving of the foundation-subsoil interaction is to find a computational model that would represent the true foundation conditions. Characterization of the interaction of the foundation structure and subsoil is a current problem that involves a series of diverse determining factors (type of foundation structure, its dimensions, material, character of subsoil, character of load etc.). Foundation structures, compared with other types of structures, are also unique in that under static calculation greater simplification occurs due to less accuracy of the input soil data. Soil is in fact a natural material and to conclusively describe its properties is rather difficult. Furthermore, this interaction system is of significantly spatial and non-linear character, which is very difficult to objectively describe using simplified plane theories. The variability of subsoil additionally contributes to the complexity of the entire system. F