Modelagem de vigas em concreto armado avaliando a presença de furos e aberturas através do método dos elementos finitos

Abstract

Most of projects which is part of construction are often created by different professionals. This outsourcing of projects can bring the lack of compatibility among them. For example, the passage of pipe through structural elements without thinking of holes or opening. From there, the current work brings a verification from influences that openings and holes can cause in reinforced concrete beams that receive bending forces. The checked influences are related to deformity, and concentrations of tensions around holes in different parts of piece. As part of this study, we did a linear analysis through the finite elements using a software called ANSYS 14.0. After analysis, we noticed alterations in the tension flow around the hole and then, we confirmed the nonlinear performance of tension when there is a change abrupt in concrete section. As result, it affects the performance of piece. Regarding the deformations, the results do not show great changes for the holes and openings in study. The amount of stresses applied in the reinforcing steel suffer alterations, but the values of stress does not pass through the tensile strength of steel.