DEVICE FOR STRENGTHENING OF RIBBED REINFORCED-CONCRETE SLABS Russian patent published in 2002 - IPC

FIELD: civil engineering, designed for strengthening of ribbed reinforced-concrete slabs of reconstructed buildings and structures. SUBSTANCE: the device has a V-shaped strengthening member placed under the ribs to be strengthened and attached with the aid of bolts to the supporting assemblies, it is featured by the fact that notches, 5 to 10 mm deep and 20 to 25 mm wide, with a pace of 150 to 250 mm are made on the surface of the ribs to be strengthened facing the strengthening member over the entire height of the zone of rib contact with the strengthening member, and the free space between the strengthening member and ribs is filled with prestressed fine concrete. EFFECT: reduced specific consumption of materials due to the joint action of the construction to be strengthened and the strengthening member in the whole bay of the construction to be strengthened. 2 dwg