RETAINED FORMWORK UNIT Russian patent published in 2016 - IPC E04C1/00 E04B2/86 E04G11/06 

FIELD: construction.

SUBSTANCE: retained formwork unit comprises two opposite plates, located at distance from each other, made from foamed polymer material, secured by bridges located between plates. Bridges are installed uniformly in longitudinal and transverse directions of plates and are made in form of facing towards each other anchor rods. Anchor rods, whose length is less than half thickness of erected structure, are inserted through holes in plates so that their flat bases are located on outer surfaces of plates. Spacer locks arranged on opposite from flat bases of ends of anchor rods are installed in perforated tube and fixed in holes of perforation. Perforated tubes are installed in mounting seat of washers arranged on inner surfaces of plates aligned with anchor rods. Every seat is made in form of a hollow cylinder, one end is fixed on washer perpendicular to its plane and aligned with its central hole.

EFFECT: technical result consists in provision of geometric stability of unit retained formwork and producing erected concrete and reinforced concrete structures with specified geometrical characteristics.

3 cl, 2 dwg