JPH10331284A - Foundation heat-insulating building construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide foundation heat-insulating building construction capable of effectively obtaining heat insulation in the underfloor section of a building, in which a first-floor slab is formed in a concrete slab, by simple foundation works. SOLUTION: Foamed styrene boards 5 are installed into forms, concrete is placed and a continuous footing 4 is constructed along only the outer circumference of a building for ensuring the heat insulation of an underfloor section in the building, in which a concrete slab is used as a first-floor slab 11. A ground is reinforced for securing the bearing capacity of an underfloor ground surface in the built continuous footing 4, an underfloor space 6 surrounded by the continuous footing 4 is filled with the mixed bodies 7 of gravel and soil as a heat-insulating material, a dampproof sheet 10 is lined so as to cover the underfloor space 6, and the first-floor slab 11 is constructed from the upper section of the dampproof sheet 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a basic heat insulating structure for securing heat insulation under a first floor in a building having a first floor slab as a concrete slab.

[0002]

2. Description of the Related Art Conventionally, in order to improve the living environment of a building, it has been widely practiced to provide a heat insulating material such as glass wool or foamed thiol on the outer wall or roof of the building.
In order to further improve the living environment, it has been considered to perform a heat insulating treatment on the outer floor and the roof of the building and also a heat insulating material between the first floor slab and the ground.

[0003]

As described above, in a conventional building, a heat insulating material is applied to the outer floor and the roof, and also to the lower floor of the first floor. Since the cloth foundation is provided under the inner wall besides the outer wall of the building outer periphery, when performing the underfloor insulation treatment, the insulation treatment is performed for each of the many underfloor spaces divided into small pieces by the fabric foundation, There is a problem that a slab has to be provided, and the work for the heat insulation treatment is troublesome.

[0004] It is therefore an object of the present invention to provide a basic heat insulation construction method capable of effectively obtaining underfloor insulation of a building having a first-floor slab as a concrete slab by simple construction.

[0005]

A feature of the present invention for solving the above-mentioned problems is a basic heat insulating construction method for securing heat insulation under the floor in a building in which the first-floor slab is a concrete slab. A board is placed in the formwork, concrete is cast, and a cloth foundation is built only along the outer periphery of the building.The ground is reinforced to secure the supporting force of the floor foundation surface in the constructed cloth foundation. After that, the underfloor space surrounded by the cloth foundation is filled with a heat insulating material, and thereafter, a moisture-proof sheet is stretched so as to cover the underfloor space filled with the heat-insulating material, and the first-floor floor slab concrete is placed on the moisture-proof sheet. The point is that they are cast.

[0006] A foamed thiol plate is provided as a heat insulating material inside a cloth foundation constructed along the outer periphery of the building, and ground reinforcement for securing the ground strength of the ground surface under the floor surrounded by the cloth foundation is provided. Do. For the ground reinforcement, the RES-P method can be used.
/ M ground strength. Thereafter, the underfloor space surrounded by the cloth foundation provided with the foamed thiol plate on the inside is filled with a known heat-insulating material having a heat-insulating effect, such as, for example, soil, gravel, and foamed thiol. Then, the underfloor space is covered with a moisture-proof sheet, and the first-floor floor slab concrete is poured from above the moisture-proof sheet.

The first-floor floor slab concrete is supported on the ground-reinforced floor under the floor via a heat insulating material filled in the space under the floor. For this reason, even if there is no foundation under the inner wall inside the building, it is possible to give a supporting force to the first floor slab concrete, and to use the foam stiol plate installed inside the concrete foundation of the fabric foundation to form the fabric foundation. Insulation between the outdoor side and the indoor side of the floor can be ensured, and the insulating material such as soil, gravel, and foamed thiol filled in the underfloor space allows the insulation between the ground under the floor and the concrete slab on the first floor Heat insulation can be achieved. This foundation insulation construction method omits the cloth foundation under the inner wall inside the building, reinforces the ground resistance of the ground under the floor, fills the insulation material under the floor, and transfers the first floor slab concrete under the floor through this insulation material. Since the structure is received on the ground, there is an advantage that the foundation work is simplified.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an example of an embodiment of a building constructed by the basic heat insulating construction method according to the present invention, and shows a cross section of a main part near the first floor below the floor. An example of an embodiment of the basic heat insulation construction method according to the present invention will be described with reference to FIG. First,
In the cloth digging groove 1A formed by digging the ground 1 for constructing a cloth foundation, the split stone 2 is disposed for the purpose of solidifying the ground, and then the concrete 3 is cast on the split stone 2.
A cloth foundation 4 is constructed on the discarded concrete 3 by casting concrete. At this time, a foamed styrene plate 5 is installed inside the formwork for constructing the cloth foundation 4, and as shown in FIG. 1, the foamed styrene plate is placed on the indoor side of the cloth foundation 4, that is, on the lower side of the floor. 5 is left as a heat insulating wall, thereby providing heat insulation between the outside of the cloth foundation 4 and the inside of the cloth foundation 4. The cloth foundation 4 is used for the outer walls 12, 13 of the building.
Are provided only on the outer periphery, and are not provided corresponding to the inner wall 14 inside the building.

If the fabric base 4 having the foamed styrene plate 5 provided on the inner side and corresponding to only the outer wall is constructed in this way, the required ground strength of the ground 1 under the floor is secured. Steel pipes 9 made of steel and having a small diameter are driven into the ground 1 at intervals of 450 to 600 mm by the RES-P method to secure a ground resistance of about 5 t / m. Thereafter, the underfloor space 6 surrounded by the constructed fabric foundation 4 is filled with a material having heat insulating properties such as soil, gravel, and styrene foam.
In the illustrated embodiment, the underfloor space 6 is filled with a mixture 7 of gravel and soil as a heat insulating material. However, this is only an example, and is not intended to limit the heat insulating material to this.
For example, a configuration in which foam thiol plates are stacked in the underfloor space 6 may be employed.

When the underground space 6 is filled with the mixture 7 of gravel and soil as a heat insulating material in this way, the moisture-proofing is performed so as to cover the underfloor space 6 filled with the mixture 7 of gravel and soil. The sheet 10 is stretched, and floor slab concrete is poured from above the moisture-proof sheet 10 to construct a floor slab 11 on the first floor. The outer walls 12, 13 and the inner wall 14 are constructed on the floor slab 11 by a known method, and a living room is provided on the floor slab 11, for example.

As described above, since the floor slab 11 is constructed on the moisture-proof sheet 10 provided, the underfloor space 6 is filled with the mixture 7 of gravel and soil, so that moisture from the ground under the floor is filled. In addition, it is possible to effectively prevent the moisture from entering the living space on the floor slab 11, and the living environment is not deteriorated.

When the underfloor insulation of the building is constructed as described above, the underfloor space 6 is thermally shielded from the outside of the cloth foundation 4 by the foamed thiol plate 5 installed inside the cloth foundation 4, filling the underfloor space 6. The floor slab 11 can be thermally shielded from the ground 1 immediately below by the mixture 7 of gravel and soil. As a result, the floor slab 11 is effectively heat-insulated from under the floor, and together with the well-known heat insulation treatment performed on the outer walls 12 and 13, the heat insulation effect of the entire living room on the first floor is significantly improved. Excellent living environment can be obtained.

Furthermore, in the above-mentioned basic heat insulation construction method, excavated soil is not carried out, the formwork is only the outer periphery of the building, and the inner wall is supported by the ground reinforced ground via a heat insulating material filled in the underfloor space 6. Because of the configuration, the formwork for the cloth foundation only needs to be on the outer periphery of the building, which has the advantage that the foundation work is simplified. In addition, underfloor space 6
The ground resistance of the ground 1 is secured by the RES-P method and the heat insulating material for heat insulation is also used for supporting the floor slab 11, so that the floor slab 11 is a mixture 7 of gravel and soil. Floor slab 1 by being uniformly supported by
Since the thickness of the floor slab 11 can be reduced, the construction of the floor slab 11 can be simplified.

[0014]

According to the present invention, foundation work for a building does not carry out excavated soil and there is no cloth foundation inside the building. And
The underfloor space is thermally shielded from the outside of the fabric foundation using foamed thiol plates, and the underfloor space is filled with a heat insulating material to effectively heat the underfloor of the building and reinforce the ground strength of the ground in the fabric foundation. Since the concrete floor slab is supported by the heat insulating material filled in the underfloor space, the thickness of the concrete floor slab can be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of an example of an embodiment of a building constructed by a basic heat insulating construction method according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Ground 4 Cloth foundation 5 Styrofoam board 6 Underfloor space 7 Mixture of gravel and soil (or Styrofoam chips) 9 Pipe 10 Moistureproof sheet 11 Floor slab 12, 13 Outer wall 14 Inner wall

Claims (1)

[Claims] The present invention relates to a basic thermal insulation method for securing insulation under a floor in a building in which a first-floor floor slab is a concrete slab, wherein a foamed thiol plate is installed in a formwork and concrete is poured into the building. After constructing the fabric foundation only along the outer periphery, and reinforcing the ground to secure the supporting force of the floor base surface in the constructed fabric foundation, fill the underfloor space surrounded by the fabric foundation with the heat insulating material Thereafter, a moisture-proof sheet is stretched so as to cover the underfloor space filled with the heat-insulating material, and a first-floor floor slab concrete is poured from above the moisture-proof sheet.