JP2001049675A - Foundation structure of building and its construction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with skill, make position accuracy good and shorten a construction period by providing a heat insulation material layer on the outside of a steel-made foundation, and arranging a protection decorative material on the outside of the heat insulation material layer. SOLUTION: A foundation batholith 1 is provided to place height adjustment concrete, a leveling form 62 is installed on the circumference of the inside of the foundation batholith 1, and a moisture-proof film 61 is laid to place a conditioning concrete layer 6. Next, a bolt hole is drilled in height adjustment concrete, a tightening bolt 31 with a leveling mechanism is provided, installed on a guide and a steel-made foundation 3 is installed on the adjustment concrete. Furthermore, it is tightened by a leveling nut 314, a building body is assembled on the foundation 3, and a heat insulation material layer 4 and a protection decorative material 5 are fixed on the outside of the foundation 3 by an adhesive and a tapping screw 51. Thereby the outer wall 83 of a building body and the decorative pattern of a protection decorative material 5 are similarly regarded to become the posh building, and concrete placing working is made only for the foundation batholith 1 to shorten a construction period.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foundation structure of a building and a construction method thereof.

[0002]

2. Description of the Related Art Conventionally, as an external insulation structure of a building foundation,
JP-A-8-253941 and JP-A-8-20971
The technique described in Japanese Patent Publication No. 3 is known.

[0003] The technology disclosed in Japanese Patent Application Laid-Open No.
Paneled heat insulating material is attached to the outside of the reinforced concrete foundation to shorten the construction period on site. Japanese Patent Application Laid-Open No. Hei 8-209713 discloses a technique in which a side surface of a reinforced concrete foundation is covered with a heat-insulating material which also serves as a formwork, and a moisture-proof concrete layer is provided on the ground inside the foundation. By using a heat insulating material that also serves as a formwork, construction is easy and the construction period is shortened.

[0004] Japanese Patent No. 2860490 discloses that
The technology of steel frame foundation is described in order to improve the positioning accuracy of the anchor bolt, simplify the arrangement of foundation reinforcement, and shorten the construction period. An anchor bolt hole is provided on the upper surface of a steel foundation beam, and a steel bar with a reinforcing bar previously welded to the foundation beam is produced at a factory. At the construction site, this steel foundation beam is installed on a concrete mounting base, and concrete is cast around the foundation beam to cover the foundation beam, and the rust and corrosion resistance and stability (structural strength) are improved. It is to increase.

[0005]

However, the above-mentioned Japanese Patent Application Laid-Open Nos. Hei 8-253941 and Hei 8-209713 have been disclosed.
In the technology of the external heat insulation structure of the foundation described in the gazette, all the foundations are made of reinforced concrete. Therefore, skill and a long construction period were required for the arrangement of the reinforcement, the placement of the concrete, and the hardening and curing.

[0006] Also, in the technology of steel foundation described in Japanese Patent No. 2860490, a steel foundation beam is used. However, concrete is cast around the foundation beam to cover the foundation beam as usual, and the rust prevention and corrosion resistance are improved. However, there was a problem that a long construction period was required for placing and hardening this concrete.

It is an object of the present invention to provide a foundation structure of a building which solves the above-mentioned problems, has good positional accuracy without skill, and can shorten the construction period, and a construction method therefor. .

[0008]

The present invention according to claim 1 is characterized in that a heat insulating material layer is provided outside a steel base and a protective decorative material is provided outside the heat insulating material layer. This is the basic structure of the building.

According to a second aspect of the present invention, a steel base is provided on a reinforced concrete base, a heat insulating material layer is provided outside the steel base, and a protective decorative material is provided outside the heat insulating material layer. It is a basic structure of a building characterized by being provided.

According to a third aspect of the present invention, a steel base is provided on a reinforced concrete base, a heat insulating material layer is provided outside the steel base, and a protective decorative material is provided outside the heat insulating material layer. This is a foundation structure of a building, wherein a humidity control concrete layer is provided under a floor inside a steel foundation.

According to a fourth aspect of the present invention, in the basic structure of a building according to the first, second or third aspect, the protective decorative material has a decorative pattern substantially similar to an outer wall of the building. is there.

According to a fifth aspect of the present invention, there is provided a protective base material provided with a reinforced concrete base base on the ground, a steel base provided on the base base, and a heat insulating material layer provided on the outside of the steel base. This is a construction method for a foundation of a building, characterized by providing

According to a sixth aspect of the present invention, there is provided a protective decorative material provided with a reinforced concrete foundation base on the ground, a steel foundation installed on the foundation base, and a heat insulating material layer on the outside of the steel foundation. And a moisture control concrete layer is provided on the ground inside the steel foundation via a moisture-proof layer.

In the present invention, the steel foundation is a steel foundation capable of receiving a building load.
H-section steel, channel steel, lip channel steel, and the like are used. The steel material of the steel base may be an alloy steel with chromium, nickel, manganese, silicon, phosphorus, sulfur, aluminum, copper, etc., in addition to carbon steel, and a stainless steel which is an alloy with chromium, nickel, etc. Steel is excellent in rust prevention and corrosion resistance, and chromium steel with chromium of 10.5 to 15% is particularly preferable.
In addition to corrosion resistance, it is inexpensive and preferable. Further, it is also preferable that the steel material is plated or painted to improve rust prevention and corrosion resistance.

In the present invention, the heat insulating material layer insulates the foundation from the outside, and comprises a polystyrene foam,
Insulation materials such as polyurethane foam, acrylic resin foam, phenol resin foam, glass wool, foam ceramic, foam concrete, and ALC are used.

In the present invention, the protective makeup material is for protecting and covering the heat insulating material layer,
A board, an ALC board, a fiber reinforced cement board, a hard wood chip cement board, a ceramic board, a laminated material thereof, a board obtained by attaching a decorative material such as a tile to the above board, or the like is used.

In the present invention, the term "humidity-conditioned concrete" refers to concrete capable of absorbing and releasing moisture. For example, concrete containing gypsum, steelmaking slag, diatomaceous earth, ALC dust, etc., which absorb and release moisture. is there.

[0018]

According to the first aspect of the present invention, since the heat insulating material layer is provided outside the steel base and the protective decorative material is provided outside the heat insulating material layer, the dimensional accuracy is improved. Since the steel base that is easy to install improves the positioning accuracy of the foundation and anchor bolts, improves the fit of the heat insulating material and the protective decorative material, and protects the outside of the steel base with the heat insulating material layer and the protective decorative material. There is no need to cover concrete with a long construction period, and the construction period can be shortened.

In the foundation structure of a building according to the second aspect of the present invention, since the steel foundation is provided on the reinforced concrete foundation bottom, the dimensional accuracy is improved by the reinforced concrete foundation bottom having a supporting strength. The steel foundation, which is easy to install, can be more accurately installed, and the positional accuracy of the foundation and anchor bolts is improved. Since the reinforced concrete foundation sole only receives the steel foundation, it does not require very fine precision and does not require any skill in the work.

In addition, since the heat insulating material layer is provided outside the steel base and the protective decorative material is provided outside the heat insulating material layer, the outside of the steel base is protected by the heat insulating material layer and the protective decorative material. Therefore, there is no need to apply a concrete covering with a long construction period, and the construction period can be shortened.

According to a third aspect of the present invention, there is provided a foundation structure for a building, wherein a steel foundation is provided on a reinforced concrete foundation bottom, and a heat insulating material layer and a protective decorative material are provided outside the steel foundation. Since the humidity control concrete layer is provided under the floor on the inner side of the foundation, the humidity can be adjusted under the floor and in the building by the humidity control concrete in addition to the effect of the second aspect. That is, when the humidity under the floor and the inside of the building is high, the humidity-controlling concrete absorbs moisture, and when the floor-underside and the inside of the building are dry, the humidity-controlling concrete releases moisture to adjust.

According to a fourth aspect of the present invention, since the protective decorative material has a decorative pattern substantially the same as the outer wall of the building, the outer wall of the building and the outer surface of the foundation have the same decorative pattern. It looks good and looks good as a whole and has a high-class feel.

According to a fifth aspect of the present invention, there is provided a method of constructing a foundation for a building, comprising the steps of: providing a reinforced concrete foundation bottom on the ground;
Since the steel foundation is installed on the foundation bottom and the protective decorative material is provided on the outside of the steel foundation via the heat insulating material layer, the concrete placing operation is performed only on the foundation bottom, and the construction period can be shortened. In addition, since the steel foundation is easy to obtain dimensional accuracy, the positional accuracy of the foundation and anchor bolts is improved, and the outside of the steel foundation is protected by a heat insulating material layer and a protective decorative material. The base is insulated and its rust resistance and corrosion resistance can be improved.

According to a sixth aspect of the present invention, there is provided a method of constructing a foundation for a building, the method comprising: providing a reinforced concrete foundation bottom on the ground;
A steel foundation is installed on this foundation, and a protective decorative material is provided on the outside of the steel foundation via a heat insulating material layer, and a humidity control concrete layer is placed on the ground inside the steel foundation via a moisture-proof layer. With the provision, in addition to the effect of the above-described claim 6, it is possible to easily control the humidity under the floor and in the building.

[0025]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a sectional view of a foundation structure of a building according to an embodiment of the present invention. FIG. 2 is a front view of a fastening bolt with a leveling mechanism used in the present invention.
FIG. 6 is a sectional view of a foundation structure of a building according to another embodiment of the present invention.

A steel foundation 3 is provided on a reinforced concrete foundation bottom 1 via a height-adjusting concrete 2. A heat insulating material layer 4 made of a polystyrene foam is provided outside the steel base 3, and a protective decorative material 5 made of a hard wood chip cement board is provided outside the heat insulating material layer 4. A moisture-controlling concrete layer 6 is provided under the floor inside the steel foundation 3.

The base bottom 1 is provided on a ground business consisting of crushed stones 11. The foundation bottom 1 is made of reinforced concrete, has a width of 80 cm and a height of 20 cm, and supports the steel foundation 3 so that the load of the building can be sufficiently transmitted to the ground.

The steel base 3 is made of stainless steel (chrome 13
% SUS410, chrome steel) and has a thickness of 6 mm
The height of the lip is 350 mm, the width is 80 mm, and the upper folded portion is a 50 mm lip channel. The lower part of the steel base 3 is a fastening bolt 3 with a leveling mechanism.
1 is fixed on the height-adjusting concrete 2.
An anchor bolt 32 is fixed to the upper part of the steel base 3 by welding.

The fastening bolt 31 with the leveling mechanism is
As shown in FIG. 2, when the upper core rod 311 is driven, the lower anchor mechanism 312 expands in diameter and is fixed to the bolt hole in the height-adjusting concrete 2. Leveling is adjusted by upper and lower nuts 314 and 315 screwed to the bolt portion 313.

The heat insulating material layer 4 and the protective decorative material 5 are formed into panels. The heat insulating material layer 4 has a thickness of 30 mm, and the protective decorative material 5 has a thickness of 15 mm, and both are adhered with a recycled rubber adhesive at a factory to be integrated. The panelized heat insulating material layer 4 and the protective decorative material 5 are attached to the steel base 3 with a vinyl acetate resin adhesive and tapping screws 51,51. The screw heads of the tapping screws 51, 51 are heat-insulated, rust-proof, and cosmetically treated by silicone caulks 52, 52.

The humidity control concrete layer 6 is a concrete containing a large amount of gypsum and ALC waste as construction waste materials, and has a thickness of 100 mm. On the lower surface of the humidity control concrete layer 6, a moisture-proof film (moisture-proof layer) 61 made of a polyethylene film is provided. Around the humidified concrete layer 6, a waste mold 62 made of polystyrene resin is used.
Is provided.

On the upper part of the steel foundation 3, a steel base 81 of the building body is fixed by anchor bolts 32. The steel column 82 of the building body may be fixed to the anchor bolt 32 in some cases. Outside the steel base 81 and the steel columns 82, an outer wall 83 of the building body is provided. The outer wall 83 is made of an ALC plate (lightweight cellular concrete plate) having a thickness of 80 mm. A stainless steel drainer 84 is attached to the lower part of the outer wall 83 and covers the upper part of the protective makeup material 5.

The decorative pattern of the outer wall 83 and the decorative pattern of the protective decorative material 5 are the same, so that the design and the texture of both are the same.

Next, a method of constructing the foundation structure of the building will be described step by step. 1. In order to transmit the axial force of the building to the ground, the ground is excavated in advance and ground work is performed using crushed stones 11.

2. On top of this, reinforcing steel is arranged, and concrete is cast, and a base floor 1 made of reinforced concrete is provided.

3. Thereafter, a height-adjusting concrete 2 for placing the steel foundation 3 at an appropriate height is cast on predetermined portions on the foundation bottom 1.

4. Foundation base 1, Height-adjusted concrete 2
After placing the concrete, cure the concrete and secure the necessary strength so that it will not hinder assembly of the building body.

5. By the day before the assembling of the building body, a disposal form 62 is installed around the inside surrounded by the base bottom 1.
A moisture-proof film (moisture-proof layer) 61 for blocking moisture from the ground is laid. Then, the humidity control concrete 6 is cast on the moisture-proof film 61. Humidity control concrete layer 6
Does not hinder the assembling work of the building main body as long as it is hardened so that the worker can walk.

6. On the day of assembly of the building body, a bolt hole is drilled in the height-adjusting concrete 2 with a drill, and a fastening bolt 31 with a leveling mechanism is attached.

7. The steel foundation 3 is set on the height-adjusting concrete 2 using the fastening bolt 31 with the leveling mechanism as a guide. Further, a leveling mechanism of the fastening bolt 31 with a leveling mechanism (leveling nut 314,
After adjusting the horizontal accuracy of the top end of the steel base 3 using 315), the steel base 3 is fastened with the nut 314 also serving as a fastening. If there is a gap between the steel foundation 3 and the height-adjusting concrete 2, the gap is filled with concrete.

8. After assembling the building body on the steel foundation 3 using the anchor bolts 32 and the like, a panel formed of the heat insulating material layer 3 and the protective decorative material 5 on the outside of the steel foundation 3 is bonded with a vinyl acetate resin adhesive. It is fixed with the agent and the tapping screw 51. Then, the makeup pattern of the outer wall 83 of the building body and the protective makeup material 5 look the same, and the building has a high-class feeling.

In the basic structure of this building, since the heat insulating material layer 4 is provided outside the steel base 3 and the protective decorative material 5 is provided outside the heat insulating material layer 4, it is easy to obtain dimensional accuracy. The accurate positioning of the foundation and the anchor bolts 32 and the like is improved by the simple steel foundation 3, the accommodation of the heat insulating material layer 4 and the protective decorative material 5 is improved, and the heat insulating material layer 4 and the protective decorative material 5 Therefore, it is not necessary to cover the concrete with a long construction period, and the construction period can be shortened.

Further, since the steel foundation 3 is provided on the reinforced concrete foundation bottom 1, the reinforced concrete foundation bottom 1 having a supporting strength makes it possible to form the steel foundation 3 which can easily obtain dimensional accuracy. It can be installed more accurately, and the positional accuracy of the foundation and the anchor bolts 32 is improved. Since the reinforced concrete base floor 1 only receives the steel base 3, it does not require very fine precision and does not require any skill in the work.

Since the humidity control concrete layer 6 is provided under the floor inside the steel foundation 3, the humidity can be adjusted under the floor and in the building by the humidity control concrete layer 6. That is, when the humidity under the floor and inside the building is high, the humidity control concrete layer 6 absorbs moisture, and when the floor below and inside the building are dry, the humidity control concrete layer 6 releases moisture to adjust. is there.

The method of constructing the foundation of this building is as follows. A foundation 1 made of reinforced concrete is provided on the ground, a steel foundation 3 is placed on the foundation 1, and a heat insulating material layer 4 is provided outside the foundation 3. Since the protective decorative material 5 is provided through the intermediary, the concrete placing operation is performed only on the base bottom 1 and the construction period can be shortened. In addition, since the steel base 3 can easily achieve dimensional accuracy, the positional accuracy of the base and the anchor bolts 32 is improved. Since the outside of the steel base 3 is protected by the heat insulating material layer 4 and the protective decorative material 5, the steel base 3 is insulated and its rust resistance and corrosion resistance can be improved.

Further, since the humidity control concrete layer 6 is provided on the ground inside the steel foundation 3 via the moisture proof film 61, moisture from the ground can be prevented and the humidity under the floor and in the building can be easily controlled. Becomes

Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and is included in the present invention even if there is a design change or the like without departing from the gist of the present invention. . For example, as shown in FIG. 3, the protective makeup material 5 and the outer wall 83 of the building body may be flush. Also,
The steel base 3 may be provided directly on the base bottom 1.
The base bottom 1 may be a precast concrete board (PC board) produced at a factory instead of being cast in place. As for the fastening bolt with the leveling mechanism, a normal anchor bolt may be buried when the height-adjusting concrete is cast.

[0048]

According to the basic structure of a building according to the first aspect of the present invention, since a heat insulating material layer is provided outside a steel base and a protective decorative material is provided outside the heat insulating material layer, dimensional accuracy is improved. The steel base, which is easy to put out, improves the positioning accuracy of the foundation and anchor bolts, improves the insulation of the insulation layer and the protective decorative material, eliminates the need for long-term concrete covering, and shortens the construction period. I can do it.

In the foundation structure of the building according to the second aspect of the present invention, since the steel foundation is provided on the reinforced concrete foundation bottom, the steel foundation can be installed more accurately, and the foundation and anchor bolts and the like are provided. The position accuracy is improved, the operation does not require skill, and the operation is efficient. Moreover, since the heat insulating material layer and the protective decorative material are provided outside the steel base,
There is no need to cover concrete with a long construction period, and the construction period can be shortened.

According to a third aspect of the present invention, there is provided a foundation structure for a building, wherein a steel foundation is provided on a reinforced concrete foundation base, and a heat insulating material layer and a protective decorative material are provided outside the steel foundation. Since the humidity control concrete layer is provided under the floor on the inner side of the foundation, the humidity can be adjusted under the floor and in the building by the humidity control concrete, in addition to the effect of the above-described claim 2.

According to the fourth aspect of the present invention, since the protective decorative material has a decorative pattern substantially the same as the outer wall of the building, the outer wall of the building and the outer surface of the foundation have the same decorative pattern. It looks good and looks good as a whole and has a high-class feel.

According to a fifth aspect of the present invention, there is provided a method of constructing a foundation for a building, the method comprising: providing a reinforced concrete foundation bottom on the ground;
Since a steel base is installed on this base and the protective decorative material is provided on the outside of the steel base via a heat insulating material layer, the concrete placement work is limited to the base, and the construction period can be shortened. In addition, the steel foundation improves the positional accuracy of the foundation and the anchor bolts, so that the steel foundation is insulated and its rust resistance and corrosion resistance can be improved.

According to a sixth aspect of the present invention, there is provided a method for constructing a foundation of a building, comprising: installing a steel foundation on a foundation base; providing a protective decorative material outside the steel foundation via a heat insulating material layer; Since the humidity-controlling concrete layer is provided on the ground inside the foundation made of the base via the moisture-proof layer, in addition to the effect of the above-mentioned claim 6, it is possible to easily control the humidity under the floor and in the building.

[Brief description of the drawings]

FIG. 1 is a sectional view of a foundation structure of a building according to an embodiment of the present invention.

FIG. 2 is a front view of a fastening bolt with a leveling mechanism used in the present invention.

FIG. 3 is a sectional view of a foundation structure of a building according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Foundation bottom 2 Height adjustment concrete 3 Steel foundation 31 Fastening bolt with leveling-out mechanism 32 Anchor bolt 4 Heat insulation material layer 5 Protective decorative material 6 Humidity control concrete layer 61 Moisture proof film (moisture proof layer) 81 Steel base 83 Exterior wall

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Takeshi Hoshino 1-1 term, Kandasudacho, Chiyoda-ku, Tokyo Sekisui Kagaku Kogyo Co., Ltd. F term (reference) 2D046 BA01 2E001 DB00 DB01 DB03 DD01 DH25 EA02 FA21 FA22 GA23 HA03 HA04 HA07 HB02 HB03 HD09 LA01 LA04 LA20

Claims (6)

[Claims] Claims: 1. An insulation layer is provided on the outside of a steel foundation,
A basic structure of a building, wherein a protective cosmetic material is provided outside the heat insulating material layer. 2. A steel base is provided on a reinforced concrete base base, a heat insulating material layer is provided outside the steel base, and a protective decorative material is provided outside the heat insulating material layer. The basic structure of the building. 3. A steel base is provided on a reinforced concrete base base, a heat insulating layer is provided outside the steel base, a protective decorative material is provided outside the heat insulating layer, and a steel base is provided. The basic structure of a building, characterized by a humidity control concrete layer provided under the inner floor. 4. The protective decorative material according to claim 1, wherein the decorative pattern has substantially the same decorative pattern as the outer wall of the building.
Or the foundation structure of the building according to 3. 5. A base floor made of reinforced concrete is provided on the ground, a steel base is installed on the base floor, and a protective decorative material is provided outside the steel base via a heat insulating material layer. Construction method of building foundation. 6. A foundation floor made of reinforced concrete is provided on the ground, a steel foundation is installed on the foundation floor, and a protective decorative material is provided on the outside of the steel foundation via a heat insulating material layer. A method for constructing a foundation for a building, comprising providing a moisture-controlling concrete layer on an inner ground through a moisture-proof layer.