I-BEAM WITH CORRUGATED WALL Russian patent published in 2017 - IPC E04C3/07 E04C3/293 

FIELD: construction.

SUBSTANCE: i-beam with a corrugated wall comprises flanges and a wall made of metal corrugated sheet welded to them with a transverse arrangement of free-form corrugations. Wherein, the wall consists of two or more parallel interconnected corrugated sheets, and the flanges are made of steel-reinforced concrete, consisting of rigid reinforcement in the form of a corrugated metal sheet and reinforcing frame including longitudinal reinforcement and transverse reinforcement, which surrounds the longitudinal reinforcement, is connected to it, and its ends are bend-inwardly welded to the corrugated sheet of metal with an offset from the beam wall equal to not less than 50 mm.

EFFECT: increased durability, fire resistance, bearing capacity and cross-breaking strength of a beam with a corrugated wall in two planes and torsion strength, expansion of its application range in construction.

14 cl, 4 dwg