Desenvolvimento de ferramenta computacional para dimensionamento de reforço com concreto têxtil em vigas de concreto armado submetidas à flexão

Abstract

Reinforced concrete is currently the most widely used structural system in civil construction; however, the need for strengthening or retrofitting structures is becoming increasingly frequent. In this context, new research has emerged on a composite consisting of fine-aggregate concrete reinforced with multiaxial textiles, which can be made of natural fibers, basalt, carbon, or glass. This composite has become known in the literature as Textile Reinforced Concrete (TRC).The focus of this work is the study of TRC applied as structural reinforcement for reinforced concrete beams subjected to bending, as well as the development of a computational program for the design of such reinforcement. To achieve the main objective, a literature review and an analysis of the calculation methods available in the literature were conducted. The program was developed in Python, and its code is available in Appendix B.The results obtained were analyzed and compared with experimental data from the literature, showing that Beber's model presented a high correlation with experimental data, while Trintin's model revealed a more conservative character. Furthermore, the high efficiency of national fiber was observed, signaling a promising path for the development of this technology in Brazil. The developed computational tool proved to be a practical and agile mechanism for the comparative analysis of calculation methods, validating the structural safety of the reinforcement. Finally, the study points to the need for greater fiber standardization and the expansion of experimental testing to support future national standardization.