SEMI-FINISHED PRODUCT FOR MANUFACTURING LOADED REINFORCED CONCRETE BEAM Russian patent published in 2018 - IPC E04C3/29 E04C5/08 

FIELD: construction.

SUBSTANCE: semi-finished product for manufacturing a loaded reinforced concrete beam comprises prestressed composite reinforcement in a concrete shell. The concrete sectional area in the location area of the reinforcement bars and the sectional area of the reinforcing bars are related by the following ratio: where G is the concrete grade (MPa); S_c - the concrete sectional area (cm²); B - reinforcement tension force (MPa); S_r - reinforcement section (cm²).

EFFECT: creating a semi-finished product for a loaded reinforced concrete beam with high bending stiffness and increased carrying capacity due to the use of prestressed composite reinforcement.

8 cl, 5 dwg