STEEL-CONCRETE BEAM Russian patent published in 2017 - IPC E04C3/07 E04C3/293 

FIELD: construction.

SUBSTANCE: steel-concrete beam consists of the upper and the lower belts, walls and supporting diaphragms forming a closed circuit filled with concrete. Wherein the walls have a curvilinear form of double curvature, the distance between which reduces from the upper belt to the lower one. In the walls there are openings and cutouts, which are located with variable pitch along the beam length in accordance with the shearing stress diagram. The walls are connected by pre-stressed tie rods.

EFFECT: reducing the material consumption of the steel-concrete beam.

4 cl, 12 dwg