Envelope wall structure

FIELD: building, particularly composite and cast-in-place building erection, for outer load-bearing structure heat insulation due to elimination of cold penetration through joints of reinforced concrete floor structure with load-bearing walls and/or columns.

SUBSTANCE: envelope wall structure includes end surfaces of load-bearing members arranged between cast-in-place reinforced concrete floor panels and blocks fastened one to another with concrete and arranged between floor panels. The structure also has heat insulation. The blocks project outwards with respect to end surfaces of load-bearing members for a distance of not less than 1/6 of block width. The heat insulation is arranged in depressions. Depression walls are defined in vertical direction by end projected surfaces of blocks and load-bearing members and in horizontal direction by lower and upper projected surfaces of blocks and end surfaces of reinforced concrete floor panels.

EFFECT: simplified structure and reduced costs of wall envelope structure, increased thermal properties and elimination of cold joints between floor structure and load-bearing walls.

3 cl, 3 dwg

 

The invention relates to the field of construction, namely, the technology frame-monolithic and prefabricated housing frame, and can be used for insulation outer bearing structures of buildings by eliminating cold bridges in places mates concrete beams with bearing elements (walls and/or columns).

The issue of increasing the level of insulation walling is very significant, since the heat loss through the building envelope for bridges up to 80% of all heat loss in buildings (see TSP 23-305-99-Saro "Energy efficiency in residential and public buildings. Standards for thermal protection of buildings").

One of the ways to increase the level of thermal protection of buildings in a frame-monolithic house-building is the use of multi-layer panels with effective insulation.

Known enclosing wall structure of multi-layered walls used in the construction of precast-monolithic exterior walls of residential buildings (see RF patent №2193635 in class. E 04 1/16, publ. 27.11.2002,). The design contains a facade plate, on the inner surface which is fixed with anchor elements, layer insulation, which is reinforcing cage. As insulation using foam thickness of 200 mm

However, this construction is expensive and requires considerable effort in manufacturing. Thermophysical properties of this design is low due to the presence of cold bridge in place of the pair of front plates with wall panels. In addition, increasing the thickness of insulation around the facade of the building up to 200 mm leads to a sharp appreciation of the whole structure.

The task of eliminating cold bridges at the junction of the wall to the cover plate removed in wall structure (see RF patent №2190734 in class. E 04 1/38, publ. 10.10.2002)containing outer cladding layer walls, internal, continuous load-carrying layer of the wall, medium, insulated layer of the wall, the cover plate resting on the supporting layer of the wall, the layer of insulation laid on the plate cover. In the inner bearing layer of the walls of the openings so that the lower mark coincides with the vapor barrier is laid on the plate coating, and the height of the openings is less than or equal to the thickness of the insulation, in this case the openings are filled with insulation, and the width of the piers between openings is determined by their carrying capacity for the perception of stress on the parapet.

However, this design is not intended to be monolithic and prefabricated housing frame.

Closest to the claimed is enclosing wall structure (see RF patent №2148129 in class. E 04 2/02, publ. 27.04.2000 g)containing the inner layer of blocks placed between monolithic jelly is betonnymi the floor, and the outer layer of masonry. The blocks are made of concrete and are interconnected steel meshes. The design contains a heater located in the openings of the bridges in place of the pair of slabs with the wall. This design is intended for block construction.

However, the design does not solve the problem of effective thermal protection due to the presence of insulation only in the floor slabs. In addition, the outer layer of brick masonry significantly increases the cost of the entire building.

The invention is directed to solving the problem of creating a simple and cheap in manufacture of the enclosing wall structure for frame-monolithic and prefabricated housing frame with high thermal properties by eliminating cold bridges in places mates concrete floor slabs with bearing elements (walls and/or columns).

To solve the problem in the enclosing wall structure formed by the end surfaces of the bearing elements located between monolithic reinforced concrete floor beams, between which is placed bonded mortar blocks, and having a heater, according to the invention blocks executed protruding outward relative to the end surfaces of the bearing elements at the races is a being not less than 1/6 of the width of the block, and the heater is located in the recesses, the walls of which are vertically formed protruding end surfaces of the blocks and elements, and horizontal upper and lower exposed surfaces of the blocks and end surfaces of concrete slabs.

In the case of shifts outward by a distance equal to half the width of the blocks, the end surface of the monolithic reinforced concrete slabs enclosing wall structure provided with a rigidly connected with them supporting frame, representing situated parallel to the end surface of the concrete slab area, perpendicular to which is welded to the segments of the armature, and the blocks are made based on the area.

As load-bearing elements can be either load-bearing walls and columns or load-bearing columns.

In well-known authors of the sources of patent and scientific and technical documentation described cheap and easy to manufacture self-supporting enclosing wall constructions for frame-monolithic and prefabricated housing frame, allowing to improve thermal properties of the building by eliminating cold bridges in places mates concrete floor slabs bearing walls and/or load-bearing columns. The task of eliminating cold bridges solved by shifts outwards and is asemenea insulation in the niches, the walls are vertically formed protruding end surfaces of the blocks and load-bearing walls and/or columns, and horizontal upper and lower exposed surfaces of the blocks and end surfaces of concrete slabs.

This allows us to conclude about the presence of the claimed design "inventive step".

The invention is illustrated by drawings, where figure 1 presents a General view of the enclosing wall structure, figure 2 - option of the wall structure with the block offset a distance equal to half the width of the block, figure 3 - sections A-a and B-B figure 2.

In the drawings:

1 - situ reinforced concrete ceilings, 2 - end surface of the bearing columns, 3 - edge bearing surface of the monolithic wall, 4 blocks, 5 - a niche for insulation, 6 - heater, 7 - area, 8 - lengths of rebar (reinforcing editions), 9 - layer fastening solution, b is the distance at which the extended blocks of 4, and accordingly the thickness of the insulator 6, d - width blocks of 4, h - depth of cold bridges.

The enclosing wall structure is manufactured as follows. After the construction of monolithic reinforced concrete frame buildings, consisting of load-bearing structures of the internal walls, columns, monolithic concrete floor slab, mount layer of the blocks 4, which can bitlib silicate (inosilicates), either of cellular claydite-concrete. When the blocks are mounted protruding outward relative to the end faces of the supporting walls 3 and/or load-bearing columns 2 (see figure 1), the Amount of displacement of the blocks is determined by calculation on the basis of the amount of the required thermal resistance Raboutsupporting structures for a specific climatic zone of the Russian Federation, consisting of heavy concrete and insulation. According to SP 23-101-2000 "Design of thermal protection of buildings", the required thermal resistance Rosuch structures should be not less than 5.0 m2·°C/W for the Northern climate zone with a heating period 10300°on the day. The maximum distance that can be shifted blocks should not exceed half the width of the block (safety reasons) (see figure 2).

As a result of displacement of the blocks 4 are formed niches 5, the walls of which were vertically are protruding end surface of the block 4, the end faces of the supporting walls 3 and/or load-bearing columns 2 (see figures 1 and 2), and horizontal upper and lower exposed surfaces of the blocks 4 and the end surface of the concrete slab 1. In the niches have 5 insulation 6, for example of polyurethane foam, thereby eliminating cold bridges in places mates concrete floor of perekriti the 1 bearing walls 3 and/or load-bearing columns 2. The thickness of the insulator 6 is determined by the distance b, which is extended blocks of 4, and depends on the climate zone and materials used.

On the outer surface of the block 4 and the heater 6 can be applied exterior insulation and protective layer, for example in the form of plaster, tiles or ceramic facing bricks, with no effect on thermal parameters of the building. When the thickness of the exterior insulation is calculated from the required tarotplane for the climate zone and materials used.

In the case of silicate blocks of width d=300 mm (see figure 1)nominated by the value b=100 mm, and having the insulation of polyurethane foam (thereby eliminating cold bridges) in niches formed in the thickness of b=100 mm and facade insulation with thickness = 75 mm internal plaster and protective layer of plaster thickness of 10 mm (not shown), thermal resistance will be 5,68 m2·°C/W, i.e. longer than recommended by standards 0.68 units.

In the case of blocks with specific resistant units higher than that of silicate blocks (e.g., cellular blocks of claydite-concrete), width d=200 mm, with extension of their on1/2 the width of the block and insulation from penoizol is b=100 mm (see figure 2, 3), internal plaster, facade insulation = 100 mm and a cladding layer of plaster section of 10 mm (not shown), thermal resistance in places of cold joints shall not be less than 4.0 m2·°C/W, which for climatic zones of the Saratov region is quite acceptable, since the required thermal resistance Raboutmust be equal to 3.2 m2·°C/watt.

Declared a constructive solution of wall fencing allows you to:

- exclude completely cold joints in load-bearing structures of buildings with the least labor and material costs;

to improve thermal performance of the building in accordance with the requirements of SNiP II - 3 - 79*, JV 23-101-2000 and TSP 23-305-99 - Saro;

- do not change the design-architectural facade;

- not to reduce the strength characteristics of the building envelope;

- reduce the volume weight walling;

- to increase the "commercial space" throughout the building;

not to complicate laid by project technology erect walling.

For example, for a 10-storey residential building with built-up area 500 m2and the height is 3 m, the growth of commercial space will be 175 m2savings on the volume of masonry external walls of silicate blocks up to 263 m3the decrease in the battle of the ia facade insulation 40-50%, additional insulation in the niches - up to 83 m3.

Thus, the enclosing wall structure is easy to manufacture, cheap, has a high thermal properties, ensuring uniform distribution of thermal resistance due to elimination of cold bridges in places mates concrete floor slabs bearing walls and/or columns.

1. The enclosing wall structure formed by the end surfaces of the bearing elements located between monolithic reinforced concrete floor beams, between which is placed bonded mortar blocks, and having a heater, wherein the blocks are made protruding outward relative to the end surfaces of the bearing elements at a distance of not less than 1/6 of the width of the block, and the heater is located in the recesses, the walls of which are vertically formed protruding end surfaces of the blocks and elements, and horizontal upper and lower exposed surfaces of the blocks and end surfaces of concrete slabs.

2. The enclosing wall structure according to claim 1, characterized in that the end surface of the monolithic reinforced concrete slab provided with rigidly connected with them supporting frame, representing situated parallel to the end surface of elizabethanne overlap area, perpendicular to which is welded to the segments of the armature, and the blocks are made exposed to the outside at a distance equal to half the width of the block, and based on the area.

3. The enclosing wall structure according to claim 1, characterized in that the bearing elements are in the form of walls and/or columns.



 

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