FIELD: construction. SUBSTANCE: method includes making holes in hollow-core reinforced concrete slab in support zones from atop slab and from below in slab span between adjacent hollows. Between holes on slab lower surface, a groove is made. Then, guides are installed with inclination from hole in support zone to hole in span, and flexible reinforcement is introduced. Guides are withdrawn, and stops are installed on slab upper surface, and spacer is placed into groove on slab lower surface, and reinforcement is stressed. EFFECT: higher efficiency. 2 dwg
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