FIELD: construction engineering. SUBSTANCE: structure that may be used in fabrication of roof slabs functioning as bearing and heat-insulating members for covering social and industrial buildings has composite box- section roof slab on discrete braces provided with top and bottom ledges, ribs, longitudinal reinforcement, and inner heater layer. Novelty is that slab is assembly of two ribbed slabs, each one being mirror image of other, integrated by means of key-type discrete braces, embedded parts with anchors made of reinforced die-rod sections; mentioned embedded parts are spaced apart through 1/4 of distance from slab ends. EFFECT: reduced labor consumption for process. 3 dwg
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