STEEL-REINFORCED CONCRETE BEAM Russian patent published in 2021 - IPC E04C3/293 

FIELD: construction.

SUBSTANCE: invention relates to construction, namely to beams operating mainly in conditions of spatial bending. The steel-reinforced concrete beam includes support diaphragms, sheets of the upper and lower belts and walls, forming a closed contour filled with concrete. The sheets of the belts and the walls have stamped anchor elements. There are stops on the inner surfaces of the support diaphragms. The support diaphragms are connected by tensioned reinforcement fixed to the outer surfaces of the support diaphragms in the lower belt area by means of anchor elements. The sheets of the walls at the height of the beam section are convex-concave cross-sectional shape, corresponding to the upper part of the cross-section to the plot of the normal stress in the concrete from external loads, at the bottom of the cross-section - to the plot of the normal stress in the concrete by straining of tensioned reinforcement.

EFFECT: reduced material consumption of the steel-reinforced concrete beam.

2 cl, 7 dwg