Esta dissertação contempla o estudo sobre os principais aspectos que norteiam as propostas normativas com critérios de dimensionamento de estruturas de concreto armado reforçadas com Polímeros Reforçados com Fibras (FRP). Este trabalho procura avaliar e discutir as metodologias de cálculo sugeridas pelas publicações American Concrete Institute (ACI) \"Committee 440\" e Fédération Internationale du béton (FIB) e propor um procedimento para a análise e dimensionamento do reforço aos esforços de flexão e discutir a importância do esforço cortante com relação à flexão. Primeiramente, efetuou-se uma revisão bibliográfica sobre o estado da arte no que concerne ao dimensionamento de reforços com materiais compósitos de FRP. Em seguida, apresentou-se a análise da verificação de segurança de elementos reforçados à flexão segundo a perspectiva das publicações acima mencionadas: ACI440.2R (2017) e FIB Model Code (2010). Posteriormente, estabeleceu-se um estudo de análise comparativa entre os resultados experimentais encontrados na bibliografia, os previstos pelos referidos manuais para os modelos aqui estudados. Os valores máximos da capacidade resistente dos modelos serão confrontados e a importância do conhecimento das características dos materiais discutidos. Com tais informações sistematizaram-se os procedimentos de cálculo a se adotar em um projeto de reforço estrutural com sistemas compósitos de FRP, respeitando as propostas normativas que mais se adequam ao Brasil. / The present dissertation results from a study concerning the main design criteria for reinforced concrete structures through externally bonding Fibre-Reinforced Polymer (FRP) systems. This paper tries to evaluate and discuss the design methodologies proposed by the guidelines publications American Concrete Institute (ACI) \"Committee 440\" and Fédération Internationale du béton (FIB) and seek to propose a procedure for the analysis and design of FRP strengthened RC elements in bending and discuss the importance of shear stress regarding the bending efforts. Initially, a state-of-art concerning design criterias on the use of FRP composites is presented. Then, the analysis and procedures of the safety concept is exposed from the perspective of the publications: ACI440.2R (2017) and FIB Model Code 2010. After, it established a study of comparative analysis between the experimental results found in the bibliography and the ones predicted by international guidelines for beams and slabs. The maximum ultimate capacity of the strengthened element will be compared and confronted and the importance of the knowledge of the characteristics of the materials discussed. Finally, conclusions are drawn out and recommendations concerning the design and safety concepts are presented, respecting the guidelines proposals that are most appropriate to Brazil.

The diploma thesis deals with processing of determining the shear strength of concrete structures reinforced with composite reinforcement, subjected to shear force, according to five different design approaches. The theoretical part of the thesis is closely related to the project FW01010520 - "Development of bent composite reinforcement for environmentally exposed concrete constructions", which is realized at the Institut of Concrete and Masonry Structures, Faculty of Civil Engineering, Brno University of Technology. The project deals with the shear strength of concrete beams reinforced with steel and composite reinforcement in various combinations. Then the load-bearing results gained within the project are compared with the values obtained by calculations according to the solved design approaches and computer software Atena Science. The second part of the diploma thesis deals with the static design and assessment of the cell structure. The cell is designed as a room inside of the medical building, where is placed device of magnetic resonance which is the reason why the cell is reinforced with non-magnetic composite reinforcement.