FIELD: construction.
SUBSTANCE: structure of precast floor includes inserts 4, armature frames 3, upper 2 and lower 1 grids. Between grids there are rows of frame 3 installed, which alternate with inserts 4. Inserts 4 are made of cellular polystyrene. Space between inserts 4 is filled with concrete 5. Lower grid 1 is installed onto rectangular angular metal grids 6 additionally installed along walls perimetre, which serve as anchors.
EFFECT: reduced prime cost and weight, simplified design and method of erection, increased bearing capacity, heat and sound insulation, increased rigidity, durability and strength.
9 cl, 5 dwg
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