Análise Numérica de Vigas de Concreto Armado Reforçadas com PRFC

Abstract

In order to keep structures under safe, the employment of structural strengthening techniques has been often requested as way to correct constructive mistakes, to adapt the existing structure to current owners necessity and to enlarge the structure durability. Between all intervention techniques, the employment of layers of carbon- fiber-reinforced-polymer (CFRP) in structural elements is reported in the literature as a reliable technique to increase the strength capacity of the reinforced elements. Experimental and numerical simulations are requested, in complementary way, to study and to understand the material mechanical behavior and the most efficient way for to apply the structural strengthening technique. In this way, the present work has as main aim to provide a non-linear computational simulation based on Finite Elements Technique (FEM) of concrete beams. The experiment includes 5 reinforced concrete (RC) beams. 4 of the RC beams were submitted to strengthening by CFRP application. After numerical simulation, the experimental results obtained in the literature were compared with the numerical. The numerical model showed reliable and compatible behavior as the experimental.