Dimensionamento de armadura de reforço para vigas com aberturas circulares na região da alma pelo método de bielas e tirantes.

Abstract

The present work is a bibliographical review of the principles of strut and tie model, dimensioning of a structural reinforcement for a beam with circular openings in the region of the wet, through the strut and tie model and laboratory tests to test the efficiency of the proposed model in the design phase. The prototype was conceived so as not to comply with some specifications of the Brazilian code NBR 6118:2014 – Estruturas de Concreto – Procedimento, so that verification was necessary. So the behavior of the prototypes can be analyzed when the openings are located in non-safety friendly positions. Was used the software ANSYS to perform a simulation of de behavior of the prototype in the step of reinforcement dimensioning so that the paths adopted by the loads could be identified inside the element, as well as the points of concentration of tensions.