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

2nd International Conference on Sustainable Development in Civil, Urban and Transportation Engineering

地球科学;运输工程;经济学

Cajka, R.^1 ; Vaskova, J.^1 ; Vasek, J.^1

Department of Structures, Faculty of Civil Engineering, VŠB - Technical University of Ostrava, Ludvika Podeste 1875/17, Ostrava-Poruba

708 33, Czech Republic^1

关键词: Commercial software;    Elastic half space;    Experimental equipments;    Foundation structures;    Interaction model;    Numerical integrations;    Numerical solution;    Stress-strain analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/143/1/012003/pdf
DOI  :  10.1088/1755-1315/143/1/012003

来源: IOP

【 摘 要 】

For decades attention has been paid to interaction of foundation structures and subsoil and development of interaction models. Given that analytical solutions of subsoil-structure interaction could be deduced only for some simple shapes of load, analytical solutions are increasingly being replaced by numerical solutions (eg. FEM - Finite element method). Numerical analyses provides greater possibilities for taking into account the real factors involved in the subsoil-structure interaction and was also used in this article. This makes it possible to design the foundation structures more efficiently and still reliably and securely. Currently there are several software that, can deal with the interaction of foundations and subsoil. It has been demonstrated that non-commercial software called MKPINTER (created by Cajka) provides appropriately results close to actual measured values. In MKPINTER software stress-strain analysis of elastic half-space by means of Gauss numerical integration and Jacobean of transformation is done. Input data for numerical analysis were observed by experimental loading test of concrete slab. The loading was performed using unique experimental equipment which was constructed in the area Faculty of Civil Engineering, VŠB-TU Ostrava. The purpose of this paper is to compare resulting deformation of the slab with values observed during experimental loading test.