Análise do desempenho de vigas de concreto armado reforçadas com fibra de carbono

Abstract

The structures of reinforced concrete, as well as other materials used in construction, have the prospect of a certain lifetime, mainly due to the purpose and form of use of the structure. Among the techniques of repair and strengthening of reinforced concrete structures the Fiber Reinforced Polymers (FRP), known as composite systems, has been featuring. The objective of this study is to analyze the performance of reinforced concrete beams, reinforced with carbon fiber blanket, requested the simple straight bending and analyzes the efficiency of this method for reinforcing structures. The reinforcement of reinforced concrete structures with carbon fiber is a technique considered new and noticed that there is little research material and structural reinforcement disclosure of this technique. The study of new materials is very important for innovation of the construction sector, for developing new technologies, in most cases, more efficient and easy to implement, as in the case of polymers reinforced with carbon fiber. It has been found increased resistance capacity of simple straight bending the beams reinforced with MBrace and S&P systems, when compared to the beams without reinforcement method. The two reinforcement systems with carbon fibers used in the beams increased load capacity of the beam, indicating that this system is effective for strengthening of structures submitted to simple straight bending.