FIELD: construction.
SUBSTANCE: invention relates to the field of construction, namely the metal-composite beams of buildings. Composite structure beam contains compressed and tensioned chords, a wall made of metal sheets, planar elements made of composite materials installed on both sides of the wall and located in its compressed zone. Planar elements have variable dimensions, limited in their planes by beam chords and an isoline of zero values of the main compressive stresses in the wall from external loads, and in the transverse direction, the outline of the outer surface of each planar element is similar to diagrams of the main compressive stresses in the wall of a beam of a composite structure, while the greatest thickness each of them does not exceed the values , where tw is the wall thickness of the beam of the composite structure, Epe is the deformation modulus of planar elements made of composite materials, Rpe is the design resistance of the material of planar elements made of composite materials.
EFFECT: improving operational reliability.
1 cl, 7 dwg
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Authors
Dates
2022-04-27—Published
2021-10-27—Filed