COMPOSITE COMBINED I-BEAM Russian patent published in 2019 - IPC E04C3/292 

FIELD: construction.

SUBSTANCE: invention relates to construction, particularly, to combined beam structures. Composite combined double-tee beam, consisting of composite wooden belts joined into rigid structure by means of mechanical links, obtained by breaking the beam along length along wavy line, and thin wall from crosswise corrugated steel sheet, is reinforced with thickening of longitudinal wall edges, at least in connection zone with belt components.

EFFECT: invention is aimed at increasing carrying capacity and rigidity of the beam.

6 cl, 4 dwg