FIELD: construction, particularly building floor structures used for cast-in-place and composite residential, civil and industrial building erection.
SUBSTANCE: floor comprises reinforced concrete beams with opened reinforcing frames, reinforcing mesh and lower reinforcing bars. The frames are connected with hollow composite reinforced concrete fillable box members opened from below and provided with orifices. Beams have channels adapted to receive lower reinforcing bars to be installed between embedded members. The reinforcing bars are provided with fixing regulation and compensation members connected to lower part of reinforcing frame to provide member adjustment and regulation as concrete has gained handling strength. The channels are connected with box-like member interior with orifices adapted to receive fire-extinguishing and floor cooling systems.
EFFECT: increased floor fire resistance.
3 dwg
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