SU1742445A1 - Shuttering for erection of three-layer walls - Google Patents

Abstract

Usage: in the construction of buildings and structures made of monolithic concrete with walls having an insulating inner layer. SUMMARY OF THE INVENTION: The formwork is provided with embedded parts in the form of a comb comb of insulating material placed between internal shields made in the form of ducts with lids and rods hinged on its longitudinal walls. 2 hp f-ly, 5 ill.

Description

The invention relates to the construction of buildings and structures from monolithic reinforced concrete, in particular, to devices for erecting monolithic walls with an insulating inner layer.

The purpose of the invention is to improve the quality and reduce heat transfer between the layers of the wall.

Figure 1 shows a fragment of the formwork, a horizontal section; figure 2 - section aa in figure 1; on fig.Z - section BB in figure 1; figure 4 - section bb In figure 1; figure 5 is a longitudinal shield boxes, section.

The formwork consists of external panels 1 and 2, ducts 3, which are installed inside the formwork between the reinforcing meshes 4 and the lintels 5 of the reinforcement cage of the wall being erected. Each box is equipped with hinged lids 6 and 7 with 8 and 9 control rods which deflect the lids in the right direction to feed the required molding mixture into a certain formwork cavity.

Using a drive (not shown), the cables 10 and 11 remove the box 3 from the molded mixtures. The comb bar 12 is made of heat insulating material and its cuts are mounted on the trac- tion 13 of the formwork and lintel 5, and in places where there is no hardness, only on lintel 5. The comb bat is necessary to close the technological gaps between the ducts 3 s the purpose is to prevent the mixing of different molding compounds, for example heavy concrete 14, which is molded to form a base layer of the wall, and decorative concrete 15, which is molded to form a protective layer of the wall. In addition, the combs 12 reduce the heat exchange between the protective and supporting layers of the erected wall. Thermal insulating concrete 16 is also used, for example polystyrene concrete. The longitudinal shield 17 of the box is made wedge-shaped, broadened upwards.

The formwork works as follows.

The reinforcement cage of the part of the wall being erected, consisting of reinforcing grids 4 and jumpers 5, is installed in the design position, for example, relative to the shield 1 installed earlier in the design position.

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(figure 4). After that, a shield 2 is installed, and the formwork panels are fixed between each other by strands 13, which, like the lintels 5, are in the grooves of the comb bars 12,

Then, inside the reinforcement cage, between the reinforcing meshes 4 and the comb bars 12, are lowered by the drive and the cables 10 and 11 of the box 3, which, interacting with the comb bars, form, within their height, the isolated side cavities inside the formwork,

After that, having swept the legs 8 and 9 of the control upwards, open the covers 6 and 7 of the ducts and fix them with the controls in the open position. Next, they are placed inside the ducts 3, for example, polystyrene, after which the lids 7 tilt the control 9 to the left side, than the duct 3 lever open, open the right formwork cavity and form it with heavy concrete, forming a supporting layer of the wall. After this, covers 7 and 6 are thrown to the right side and the left formwork cavity is molded with decorative concrete to form a protective layer of the wall. When all the formwork cavities are molded to a certain height, they include mounted vibrators (not shown) or without them, and with the help of a drive, the box 3 is smoothly removed from concrete mixes by a certain step. Then the wall molding technology is repeated to the top of the formwork.

After the setting of the concrete, a three-layer monolithic wall with an insulating layer inside, with a bearing layer is obtained

made of heavy concrete and with a protective of decorative concrete. In this case, all the layers are interconnected by a single crystal lattice, since the formation of the layers is performed almost simultaneously.

Claims (3)

1. Formwork for erection of three-layer walls, including internal shields mounted in the form of ducts, which installed with technological gaps between each other for the passage of the crucible formwork and lintels of the reinforcement cage of the wall and are equipped with a drive for v - displacements, as well as an external IL. distinguished from hem; with an improvement in the quality and reduction of the tag, h, the exchange between the layers of the wall, opal SSC is equipped with embedded elements of thermal insulation material, size & t technological gaps between ducts with the ability to interact with. 2. Formwork in accordance with claim 1, in accordance with claim 1, so that each embedded element is designed as a comb-bar with slits. in which the formwork forms l (it: i) of the reinforcement cage wall are placed, 3. The formworking in accordance with paragraph 1, clause 1, and i and so that, in order to increase the convenience & Forming, each box is provided with covers that are hinged on its longitudinal walls with the ability to interact with each other and remotely tilt in the right direction to supply the concrete mix and a certain amount of formwork. 75 Fig with: I m and ml four (L Fig.b FI.5