EFFECTIVENESS OF STRENGTHENING CASES OF METALLIC CYLINDRICAL TANKS BY FRP REINFORCEMENT BASED ON FIBERS OF DIFFERENT TYPES

The park of metal cylindrical tanks in Ukraine is characterized by significant wear of load-bearing structures, corrosion of elements and metal fatigue of vertical connections. One of the solutions to the replenishment of the lost load-bearing capacity of their walls is the reinforcement by external transverse FRP. It is also make it possible to ensure tightness and anti-corrosion protection of these constructions. At the same time, existing recommendations assessing the effective use of various types of FRP, differing in strength, deformation and thermal deformation parameters, are insufficient in relation to the strengthening of metal cylindrical shells.