FIELD: construction.
SUBSTANCE: invention relates to the field of construction, in particular to large-span arched roofs. The arched cover includes a polygonal upper chord, a lower chord in the form of a sagging broken tie connecting the supporting nodes of the arched cladding, V-shaped elements located in the span at the bends of the sagging broken tie and combining the polygonal upper chord with the sagging broken tie. All mating nodes of the coating elements are made rigid. The polygonal upper chord in the support node is connected with a tightening with an eccentricity equal to 1/10÷1/15 of the maximum distance between the polygonal upper chord and the lower chord.
EFFECT: reducing the material consumption of the coating.
1 cl, 3 dwg
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