FIELD: construction.
SUBSTANCE: invention relates to the field of construction and can be used as beams of ceilings and coatings of residential and public buildings. Prestressed steel-concrete beam includes steel profiles forming an H-section with ribs in the end part, having anchor elements, longitudinal prestressed reinforcement rods and filling concrete. Between the end and inner ribs there is a rocker made from U-section channel with recess in the middle of the length resting on the lower part of the beam wall. In order to ensure uniformity of forces along the whole length of reinforcement, prestressed reinforcement can be placed in nonmetallic thick-walled tube.
EFFECT: technical result consists in increasing the bearing capacity of the reinforced concrete beam, increasing stiffness, reduction of material consumption.
1 cl, 3 dwg
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