Reforço de elementos estruturais de edificações do século XX com uso de fibras de carbono

Abstract

The increasing recognition of the cultural value of twentieth-century reinforced concrete buildings poses specific challenges for structural interventions, which must balance technical performance with the preservation of authenticity. This dissertation aims to develop a structural strengthening methodology using carbon fiber-reinforced polymers (CFRP), specifically applied to reinforced concrete beams in historic buildings, with an emphasis on the Near Surface Mounted (NSM) technique, in accordance with conservation and restoration principles. The research adopts an applied, exploratory, and descriptive approach, based on bibliographic review, normative analysis, and a practical case study. The process involved the diagnosis of the existing structure, material characterization through testing, the application of normative guidelines, and the design of CFRP reinforcement. The proposed methodology was systematized into a technical roadmap suitable for replication in similar interventions, proving to be technically feasible and compatible with the aesthetic, historical, and functional requirements of heritage buildings. The study contributes to the improvement of intervention practices in historic concrete structures by integrating technological innovation with preservation principles.