Analysis of the Stress-Strain Condition of Concrete and Reinforcement in the Area of Their Engagement in the Ansys Software Package

Abstract

Prefabricated reinforced concrete structures are widely used to speed up the erection of structures in construction practice; they are connected during installation by means of embedded core elements, subsequently monolithic with concrete. Under the influence of external loads, axial tensile and transverse shear forces arise in such nodal joints, which are often neglected in the static analysis of structures. In turn, this can lead to the development of ultimate deformations in the assembly, to a change in the conditions for fixing the structure, and, as a consequence, to their premature collapse.
 This article discusses the effect of the axial pulling force in the reinforcing bar on the stress-strain condition (VAT) of the concrete mass surrounding it. To solve this problem, a numerical experiment is carried out in the ANSYS 19.0 Workbench package, in which the adhesion of fiberglass and metal reinforcement to concrete is simulated. It allows establishing the nature of the stress distribution in the core embedment area.