Intradosal or extradosal reinforcement of vaults and domes with FRP

Reinforcements with carbon fiber composite materials allow to increase the resistance of the vaults by applying bandages to both the intrados and the extrados. The intervention on the extrados is carried out when the brick vaults must be left exposed to maintain their aesthetic appearance and not alter the intrados. Reinforcement with FRP systems involves the application of bandages according to the generator of the vault, with the function of resisting the tensile stresses produced on the extrados of the vault section itself. Furthermore, orthogonal bandages must be arranged, according to the direction of the vault. In this way it is possible to reconstruct the stresses that the individual bandages absorb, creating a distribution mesh that guarantees greater homogeneity of the reinforcement system over the entire surface. As a final intervention phase, perimeter connections are prepared with bow connectors, to connect the bands to the perimeter walls.