Reforço estrutural de vigas de concreto simples com fibras de vidro e resina epóxi

Abstract

Over the years, a structure may lack reinforcement, whether due to increased loading that was not foreseen in the initial dimensioning, due to design errors, execution or lack of inspections and maintenance. There are currently several techniques available on the market, of which the use of unconventional materials such as fiber-reinforced polymers for the structural reinforcement of existing elements has been gaining ground, as it manages to supply and improve the mechanical performance that the component needs without having to change its structure so much. architecture as some traditional techniques. Thus, in Brazil there is still no regulatory norm for reinforcing structures, but the CT 303 committee aims to assist in this normalization. As an alternative to using reinforcement, international standards help guide Brazilian engineers. In this bias, the present work analyzed the structural performance of polymers reinforced with glass fibers - GFRP - in simple concrete beams, using the EBR technique for reinforcement. The results obtained were quite satisfactory, indicating that the high resistance of the FRP added to its practicality of execution is one of the best options in the current market for the reinforcement of structures.