STEEL CONCRETE BEAM Russian patent published in 2017 - IPC E04C3/293 E04C3/07 E04B1/30 

FIELD: construction.

SUBSTANCE: steel concrete beam comprising the upper and lower belts, the wall and the concrete located in a closed loop in the upper part of the beam section, has a closed loop for the concrete location. The closed loop is formed by the upper belt and the wall consisting of two sheets bent outwards in the upper part of the beam in accordance with the diagram of normal compressive stresses in the cross sections of the beam. The upper edges of the wall sheets are spaced in the horizontal plane and form along the beam length two curves corresponding to the bending moment diagram in the beam. The upper interface points of the wall sheets are located on a vertical curve corresponding to the bending moment diagram in the beam. And the wall sheets are united by retainers of variable length, which give it the curved shape along the beam height and length.

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

7 dwg