FLAT PRECAST-MONOLITHIC SLAB AND CEILING PANEL FOR THIS SLAB Russian patent published in 2017 - IPC E04B5/16 

FIELD: construction.

SUBSTANCE: in flat precast-monolithic slab all panels are rigidly interconnected by means of the above-column panels located on the side faces, in which an opening is made for the passage of columns, intercolumn and central panels, bent ends of working reinforcement, made as loops and protruding beyond the side faces of panels to length sufficient for their anchoring in the joint between panels. Between the loop outlets of working reinforcement at least two reinforced protrusions, cooperating with reinforced protrusions coaxially disposed on the side face of adjacent panel. Wherein, each protrusion is made with a recess delimited by a horizontal surface located at a distance from the surface of panel, not exceeding half of its thickness, passing into inclined surface. Moreover, in above-column panels and on side faces of intercolumn panels, interfaced with side faces of central panel, sloping surfaces of recesses are at an angle to the upper surface of panel, and on the side faces of intercolumn panels interfaced with the side faces of above-column panels, and, on the side faces of central panel, sloping surfaces of recesses face at the same angle to the lower surface of panel. Adjacent panels in the zones of recesses in the process of installation are joined to each other by horizontal surfaces displaced horizontally relative to the intersection of horizontal and sloping surfaces of recesses, forming channels, above and below free from connection parts of horizontal surfaces, to pass upper and lower horizontal reinforcing bars through overlapping of loop releases of anchored working reinforcement of slab panels along the entire length of joint between the panels followed by joint grouting between panels using concrete.

EFFECT: increasing the strength, reliability and bearing capacity of slab.

23 cl, 15 dwg