Comparison of Results of Analyses the Foundation Slab Calculated by Two FEM Programs

Abstract

For decades attention has been paid to interaction of foundation structures and subsoil and development of interaction models. Currently there are several software that, can deal with the interaction of foundations and subsoil. The purpose of this paper is to compare resulting deformation of the slab, subsidence of the subsoil, bending moments and contact stress calculated by two different software based on FEM calculations. Calculated deformation of the slab is compared with deformation measured during experiment.

Numerical Analysis of Subsoil-Reinforced Concrete Slab Interaction

“…In 2014, R. Cajka and J. Labudkova [13] described how calculated deformations depend on parameters of soil environment modeled by 3D finite elements. Deformation and contact stress of the slab and subsidence of the subsoil were calculated by using two FEM programs, Scia Engineer [14] and Mkpinter (a non-commercial software created by Cajka R., co-author of this paper), in [15]. Numerical interaction model of reinforced concrete (RC) slab and subsoil was also modelled in ANSYS [16] with application of inhomogeneous half-space to get better subsoil behavior [17].…”

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

“…These include numerical methods, eg. FEM [8,19,20,21]. The subsoil can be modelled as a 2D surface model or as a 3D spatial model of the soil massif, which allows to carry out detailed studies inside the subsoil.…”