PRESTRESSED HOLLOW-CORE REINFORCED CONCRETE SLAB FOR CEILING DISKS

摘要

FIELD: construction.;SUBSTANCE: prestressed plate for disks of ceilings includes prestressed and nonprestressed reinforcement, and also relieving hollows that are parallel to the long side of plate. At that hollows are located in the top three quarters of plate thickness, and in bottom quarter of plate thickness channels of round section or grooves of parabolic section are additionally arranged for stressing of reinforcement, which are oriented perpendicular to relieving hollows and installed parallel to the smaller side of plate and each other. Symmetry centers of channels are located in one plane in the middle of plate bottom quarter height, and axes of parabolic grooves - perpendicular to the bottom surface of bottom surface of plate.;EFFECT: arrangement of ceiling disks, large-span layers, different platforms from packets of prestressed multi-hollow plates.;2 dwg