FIELD: construction.
SUBSTANCE: finished structural element is used in building structures of a composite ceiling and a beam slab. The structural element comprises a base and at least two distanced bases. The base has lower and upper surfaces. Formations protrude from upper surface in a rib joint. Each bulge comprises an even section and a wall that defines a groove together with the opposite wall of the neighbouring formation. Side walls are arranged at the angle that differs from the right angle, to the upper surface of the base. The width of the even section of each formation in cross section is at least 20% more than the width of the according rib joint in each formation.
EFFECT: increased bending strength and reduced weight.
52 cl, 24 dwg
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