BEAM WITH PERFORATED WALL Russian patent published in 2016 - IPC E04C3/08 

FIELD: construction.

SUBSTANCE: invention relates to construction, particularly to a perforated beam of the building coatings and floors structures. Beam with a perforated wall comprises two interconnected elements with T-shaped projections made from a rolling profile, walls of which are provided with shaped edges of connectors to make the T-shaped projections and arranged symmetrically relative to longitudinal axes of the profile walls with a half the pitch shift, with the possibility of connection of the obtained elements projections and formation of a chess perforation at connecting them. Edges of the T-shaped projections bases are made convex, and the side edges are straight and inclined relative to the longitudinal axis of the profile wall with the possibility of broadening the projections convex bases. Projections are jointed together by extreme broadened edges of the convex bases, a the perforated holes are formed by the central edge of the base arranged between broadenings of the T-shaped projections and shaped edges of the connector repeating contours of the convex base and the projections side edges.

EFFECT: technical result is improvement of bearing capacity of the beam.

5 cl, 10 dwg