Substituição do vergalhão de aço por vergalhão de fibra de vidro nas vigas

Abstract

This paper intends to design a beam, using Glass fiber-reinforced polymers (GFRP) in the framework, examine the outcomes of a steel design and assess the viability of a potential replacement. A floor plan was drawn in Autocad (2023), based on a project obtained from the Cesumar University repository and exported to Eberick (demonstrative version) for steel dimensioning. The calculations for the design of the project with glass fiber-reinforced polymers were carried out manually, in accordance with the instructions of NBR 6118 (2014) and substituting parameters pertaining to the physical characteristics of glass fiber-reinforced polymers for those referring to the physical properties of steel, as instructed in the American Concrete Institute Technical Guide (ACI 440-1R, 2015). The results obtained show that polymers reinforced with glass fiber have better tensile strength in the beams, compared to steel, since the results obtained in the design of the positive reinforcement and negative reinforcement of the analyzed beam showed a smaller area to combat the bending moments. It is concluded, therefore, that having a material with greater resistance to corrosion, when subjected to more environmentally aggressive means than steel, opens up a range of possibilities for the field of civil construction.