КОМП’ЮТЕРНЕ МОДЕЛЮВАННЯ РОБОТИ КЛЕЙОВИХ З’ЄДНАНЬ СТАЛІ ТА БЕТОНУ ПРИ ДІЇ ХАРАКТЕРНИХ РУЙНУЮЧИХ ЗУСИЛЬ

Abstract

The issues of the previous experimental research obtained results verification, of steel-adhesive joint with concrete in specialized software LIRA 10.6, are considered. Based on the results of previous strength and stress-deformed condition experimental research of steel-adhesive joints with concrete (non-anchorless), a method of numerical modeling of the investigated fastenings under the influence of characteristic destructive forces (separation, shear, bending) was developed.
The analysis of the joint’s stress-deformed condition was carried out by the finite element method, taking into account the physical nonlinearity of materials deformations, with application of step-iterative linearization method. The results of numerical modeling, taking into account the physical nonlinearity of deformation, coincide with the performed static calculation by 90-95 % (depending on the type of applied destructive forces) and confirm the conclusions about the reliable operation of a non-anchorless adhesive joint between steel and concrete under the influence of different types of loads. The developed model allows calculation and analyzing of the stress-deformed condition of steel-adhesive joints with concrete for any initial geometry of fastening and materials characteristics.