METHOD OF STRENGTHENING OF SINGLE-BAY REINFORCED CONCRETE BEAMS AND BUILDING AND STRUCTURE BEAMS Russian patent published in 2018 - IPC E04G23/02 

FIELD: construction.

SUBSTANCE: invention relates to the field of construction, namely, to a method for reinforcing single-span reinforced concrete beams or a slab of overlying reinforcement. Reinforcement method consists in that the tensioned reinforcement is placed in the span of the building frame on the lower edge of the beam or plate in the zone of tensile stresses, at the same time, metal plates are installed from below and above the beam or plate in the support zone and are tightened by the studs with a reduction force, less than the prismatic strength of the concrete, and the tension force of the reinforcement P is provided by the condition P≤N⋅f, where N is the compression force, f is the coefficient of friction of the surface of the metal plate and concrete, after which the abutments are rigidly fixed on the lower plates and the ends of the reinforced reinforcement are placed in them, the reinforcement is heated and fixed in the stops by anchor devices followed by cooling by transferring the tension force through the plates to the structure.

EFFECT: technical result consists in reducing the labor intensity of the assembly work.

1 cl, 4 dwg