SU977639A1 - Floor slab - Google Patents

Description

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The invention relates to construction and can be used in ceilings above ventilated undergrounds, attic pb. Ceilings, and roofs of buildings.

. There is a well-known reinforced concrete precast ceiling over the ventilated underground, including ribbed plates interconnected, a heater located between them, and an airtight screen attached to a heater that is made in the form of a vault with a maximum thickness along the supporting ribs, and between them on air1} protected. the screen has a heat insulating insert with a plate

The disadvantage of this overlap is its multiplicity and complexity of manufacturing the insulated slab, as well as the installation of butt-slabs with solid reinforced concrete ribs, located along the ridge and penetrating the overlap along the entire height.

The known construction panel covering ± and including the upper plate of the waterproofing layer, the lower plate and the thermal insulation layer placed between them, the lower plate made of reinforced concrete with H-shaped cross section, the upper plate made of asbestos cement and attached to the side and intermediate ribs of the bottom plate 2.

The disadvantage of such a coating panel is the laboriousness of manufacturing, especially the difficulty of fastening the upper asbestos-cement slab to the reinforced concrete ribs of the lower slab.

10 In addition, the presence of through heat-conducting inclusions from heavy concrete in the form of intermediate and lateral solid fins.

The closest technical solution is a slab for a ventilated underground, made of complete prefabricated slabs consisting of a lower and upper light concrete layer (ceramics 20 zitobeton) and insulation (mineral wool or polystyrene plates) between them. The lower and upper light concrete layers are interconnected along the perimeter of the slab by framing ribs of lightweight concrete during its molding f3 |.

The disadvantage of this design is the presence in them along the contour of continuous continuous ribs.

30 This creates a heat-conducting through.

inclusion, especially when joining plates, when two edges are located side by side.

The purpose of the invention is to improve the thermal insulation properties.

This goal is achieved by the fact that in the overlap panel, including a heater, located between the concrete layers connected along the contour with concrete edge ribs, the edge frames are intermittent, and the rib sections on the opposite sides of the panel are shifted in a checkerboard pattern.

In addition, the areas of the ribs and the gaps between them are made equal in length. ,

FIG. 1 shows the overlap panel, a general VIEW} in FIG. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. 4 — Size B – B in FIG. I; in fig. 5 - panel butt joint element.

The overlap panel includes a heater 1 of mineral wool or polystyrene foam boards, laid in the molding process between layers 2 and 3 of lightweight claydite concrete, connected along a contour by framing edges. The framing ribs are made discontinuous, and the parts of the ribs 4 on the opposite faces are shifted in the chess board. While the areas of the ribs 4 and the intervals 5 between them are made in length.

. The arrangement of the rib sections on the opposite faces of the panel in the pitch: the atomic order makes it possible to use the same reinforcing cages to reinforce the fins, while in the opposite discontinuous rib the cage in the longitudinal direction must be turned by 180. In the cage areas that fall between the sections ribs filled with insulation, vertical reinforcing bars are not provided.

The joint is recommended to close as follows.

At the height of the lower part of the panel, monolith with solutions, then.

Insert the liner from the effective insulation to the height of the insulation layer in the panel and cover the joint with the solution from above.

When arranging the joint between the panels, the through arrangement of the two edges is excluded. In each section, we have only one edge.

If necessary, the devices in the panels of connecting intermediate fins between the layers of concrete should also be made intermittent to reduce the length of solid fins.

The proposed panel design

overlappings will allow using them not only in the basement and attic slabs, in the floorings, but also in exterior wall panels where a rigid connection is necessary

concrete layers with a simultaneous decrease in heat-conducting inclusions.

Claims (2)

1. A floor panel comprising a heater located between concrete layers connected along the contour with brittle framing edges, characterized in that that, in order to improve the thermal insulation of its own 9TV, the framing ribs are made intermittent, and the rib sections on the opposite faces of the panel are shifted in a checkerboard pattern. 2. The overlap panel according to claim 1, characterized in that the rib sections and the intervals between them are made equal in length, Information sources, taken into account in the examination 1. Authors certificate of the USSR 588320, cl. E 04 B 7/08, 1975. 2. Authors certificate of the USSR 514941, cl. E 04 C 2/26, 1974. 2, Pikhovkin V.A., Shklrove I.D. Structural features of residential buildings for construction in Norilsk. Housing construction, 1978, № 9, p. 4-6, fig. b.