JPH05195637A - Structure for artificial ground and structure for house - Google Patents

Abstract

PURPOSE:To easily adjust the horizontal level of a concrete structure and freely set the layout of a house on the concrete structure in the structure of the artificial ground and the structure of the house installed with the concrete structure made of precast concrete for providing a space section such as a parking garage below the house. CONSTITUTION:A continuous footing 11 supporting a house, a concrete structure 21 installed on the continuous footing 11, and a house section 30 installed on the concrete structure 21 are provided. The concrete structure 21 is formed into a nearly reverse U-shaped cross section with a top plate section 23 and side wall sections 22 extended downward from both side sections of the top plate section 23. The continuous footing section 11 is installed on the ground along the lower faces of the side wall sections 22. Lower end sections of the side wall sections 22 are connected on the continuous footing section 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an artificial ground formed by a concrete structure and a structure of a house in which a space such as a parking lot or a work space is provided below the house by using the artificial ground. Is.

[0002]

2. Description of the Related Art Generally, a relatively large space that can be used for a parking lot, a work place, etc. is provided in the lower part of a house, that is, on the first floor by a box-shaped structure made of cast-in-place concrete with a front opening. A wooden house may be installed on the upper part. Further, this space is not always on the ground but may be formed as an underground space in which the structure is buried or a semi-underground structure in which half of the structure is buried.

By the way, since the construction work of the structure is the construction work of cast-in-place concrete, the work efficiency on site is poor and the construction period becomes long.
Therefore, the applicant of the present invention, as a block unit for building a basement shown in Japanese Patent Application No. 2-133160, is a precast concrete integrally formed in a U-shaped cross section from a bottom plate part that constitutes a floor and a side plate part that forms a side wall. Proposed block unit made of. The block unit constructs a basement by connecting a plurality of bottom plates and side plates so as to form a continuous bottom surface or wall surface. Then, a girder for supporting a house as an upper structure is arranged on the upper part of the side wall portion, and the house is constructed on the basis of the girder.

By using the block unit, as shown in FIG. 6, a space may be provided on the ground. The structure of the house shown in FIG. 6 has a support portion 2 formed by block units 1 having a substantially U-shaped cross section arranged in two rows on the ground, and a support portion 2 arranged on the support portion 2 in a substantially lattice shape. Giraffe 3 ... and a house 4 constructed on the basis of the girder 3 ...
(Only the base 5, floor 6 and lower part of the wall 7 of the house are shown). With the structure of the house, a space such as a parking lot or a work place can be formed in a lower portion of the house in a short time.

[0005]

By the way, in order to construct a supporting portion using the block unit, first,
Digging the ground where the bottom plate part of the block unit is placed, crushing quarry etc. and rolling it to flatten it, discarding concrete on it, and leveling the empty mortar when the concrete hardens A base was constructed by laying the block unit on the base and the block unit was placed on the base.

In the conventional housing structure as described above, the substantially U-shaped block unit is arranged in an inclined manner when the ground to which the waste concrete is applied is not horizontal, so that the blocks are arranged. Since the house built on the unit will also tilt, it is necessary to level the part where the block unit of the ground is placed strictly horizontally and flatly, and it takes a lot of time to level the ground. It was

In order to build a house on a block unit having a substantially U-shaped cross section, a beam-like structure is laid between the side wall portions of the block unit in order to support a pillar or a wall which is the skeleton of the house. You will need one. Therefore, a girder is provided on the block unit, and a pillar or a wall is provided on the girder. Therefore, it is necessary to change the layout of the girders depending on the layout of the house to be built (positions of columns and walls), but the position of the girders is regulated to some extent by the side wall of the block unit, so The structure of the house on the unit is also restricted by the arrangement of the side wall of the block unit.

[0008] In other words, in the conventional structure of the house, if the layout of various houses is to be dealt with,
It is necessary to prepare various block units and girders,
Therefore, the production cost cannot be reduced by limiting the types of block units and girders, resulting in an increase in the construction cost of the house.

The present invention has been made in view of the above circumstances, and it is an object of the present invention that the supporting portion can be easily installed horizontally on the ground, and the layout of the house on the supporting portion can be set. The purpose of the present invention is to provide a structure of artificial ground and a structure of dwelling which can be freely operated.

[0010]

The structure of the artificial ground of the present invention has a support part made of precast concrete whose upper surface is the artificial ground, and a support part connected to the lower end part of the support part and supporting the support part. And a precast cloth base portion, the support portion is composed of a plurality of concrete structures joined to each other, the concrete structure is a horizontally arranged rectangular plate-shaped top plate portion, A rectangular plate-shaped side wall portion vertically extending from both side edges of the top plate portion is integrally formed in a substantially U-shaped cross section, and the cloth foundation portion is formed in a longitudinal direction of a lower surface of the side wall portion of the concrete structure. Arranged in a state of embedding a lower part of itself in the ground along, and the side wall lower part and the cloth foundation part upper part are joined,

Further, the structure of the house of the present invention has a precast concrete cloth foundation portion for supporting the house, a precast concrete support portion connected to an upper end portion of the cloth foundation portion, and a precast concrete support portion on the support portion. A housing part provided, the supporting part is composed of a plurality of concrete structures joined to each other, and the concrete structure is a horizontally arranged rectangular plate-shaped top plate part, and the top plate. Are integrally formed in a substantially U-shaped cross section with rectangular plate-shaped side walls that are respectively hung from both side edges of the concrete structure, and the cloth foundation is formed along the length direction of the lower surface of the side wall of the concrete structure. It is arranged in a state that the lower part of itself is buried in the ground, the side wall lower part and the cloth foundation part upper part are joined, and the housing part is provided on the top plate part of the concrete structure. As a solution to .

[0012]

According to the above construction, if the cloth foundation portion is arranged horizontally, the concrete block structure constituting the support portion is also arranged horizontally. Also, since the upper part of the support part will be the surface composed of the top plate part of the concrete structure, when installing the housing part on the top plate part, the position of the pillars and walls can be freely set if it is on the top plate part. You can decide

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 3 are views showing a structure of an artificial ground and a structure of a house according to this embodiment. As shown in FIG. 1, the structure of the artificial ground according to the present embodiment mainly includes a cloth foundation portion 11 that supports a house and the like, and a support portion 20 supported by the cloth foundation portion 11. Then, in addition to the cloth foundation portion 11 and the support portion 20 that form the artificial ground, the housing portion 30 (the base 31 of the housing portion 30 in FIG. 1 is constructed on the support portion 20.
And the floor 32 and only the lower part of the wall 33 are shown) to form a dwelling unit structure.

As shown in FIG. 2, the cloth foundation portion 11 is
It is composed of a well-known cast-in-place foundation for a wooden house and a foundation structure 12 ... Formed in substantially the same shape.
The foundation structure 12 ... Includes a rectangular plate-shaped foundation footing portion 13 embedded in the ground and the foundation footing portion 13
Is formed integrally with a rising portion 14 on a substantially rectangular parallelepiped provided along the length direction of the above-mentioned, and has an inverted T-shaped cross section.

On the upper surface of the rising portion 14, as shown in FIG. 3, a side wall portion 2 of a concrete structure 21 described later is provided.
2 A plurality of recesses 15 are provided at predetermined intervals for positioning and preventing displacement when joining to the lower end. Further, as shown in FIG. 2, on the upper surface of the rising portion 14 having the concave portions 15, ridges 16, 16 are provided on both side edges along the irregularities of the concave portions 15, respectively. , 16, the lower end of the side wall portion 22 is fitted.

Further, as shown in FIG. 3, the rising portion 1
The left and right end portions of 4 are vertically inserted into the insertion holes 17 and 17 respectively.
Are formed. Then, as shown in FIG. 1, three substructures 12 are arranged in parallel at intervals of a width of a concrete structure 21 described later. Then, the substructure 12 is horizontally installed on the groundwork 17 provided on the bottom surface of the root cutting hole dug in the ground a through the waste concrete. Further, the crushed stone layer 18 and the crushed stone layer 1 which are spread and compressed between the three substructures 12
A floor is formed from a concrete layer 19 cast on the surface 8. The shape of the rising portion 14 is lower than that of the above-mentioned well-known cast-in-place foundation.

The supporting portion 20 is, as shown in FIG.
A rectangular plate-shaped top plate portion 23, and rectangular plate-shaped side wall portions 22 formed vertically downward from both side edges of the top plate portion 23,
22 and a concrete structure 21 formed in a substantially U-shaped cross section.

A screw hole (not shown) for attaching an anchor bolt (not shown) for fixing a base 31 of a housing section 30 described later is provided on the upper surface of the top plate 23 in the arrangement of the base 31. Correspondingly formed in plural. The screw hole is formed by embedding a tubular member having a screw hole in the top plate portion 23.

Further, as shown in FIGS. 1 and 2, through holes 24 are horizontally formed at both left and right ends of the top plate 23 along both left and right edges of the top plate 23. .. Further, as shown in FIG. 3, the lower end surface of the side wall portion 22 is
Projections 25 are formed corresponding to the recesses 15 on the upper surface of the substructure 12. Further, as shown in FIG. 2, on the lower end surface of the side wall portion 22, a protruding portion 26 that fits between the two protrusions 16 provided on both sides of the upper surface of the foundation structure 12 is provided. Are formed along the length direction of the lower end surface.

Further, as shown in FIG. 3, from the lower end of the side wall portion 22 of the concrete structure 21 which is the both ends of the supporting portion 20, the lower portions of the two reinforcing bars 27, 27 embedded in the concrete structure 21. Extends vertically downward. When the concrete structure 21 is placed on the foundation structure 11, the rebars 27, 27 are used as the insertion holes 1 of the foundation structure 11.
7 and 17 are inserted.

The concrete structure 21 is made of precast concrete previously formed in a factory or the like,
In addition to the rebars 27, 27, a plurality of rebars 28 ... Are arranged in a substantially lattice pattern inside.

In the present embodiment, three concrete structures 21 are connected to each other so that their side wall portions 22 ... And top plate portions 23 form a continuous wall surface and ceiling surface, and the connected concrete is connected. The support portions 20 are formed by arranging them in two rows in a state where the outer surfaces of the side wall portions 22 of the structures 21 are in contact with each other.

When the concrete structures 21 are connected to each other, a steel wire (not shown) is passed through the through holes 24 ... Each concrete structure 21 is fixed by tightening. An artificial ground is formed from the cloth base portion 11 and the support portion 20, and the upper surfaces of the top plate portions 23 of the concrete structures 21 can be used as the artificial ground.

The housing section 30 is a prefabricated house in which a floor 32, a wall 33, a ceiling (not shown) and the like are formed of rectangular wood panels. In the housing part 30, the anchor bolt is attached to the screw hole on the upper surface of the top plate part 23, and the anchor bolt is attached to the base 31 that is a prismatic wood.
Is fixed, and the wood panel is mounted on the base 31 as a floor panel or a wall panel. Further, when the wood panel is mounted on the base 31, it is fixed by anchor bolts protruding on the base 31 in a state of penetrating the base 31.

Next, a method of constructing a house using the structure of the artificial ground and the structure of the house of this embodiment will be described.
First, in order to install the foundation structure 12 ... on the ground,
Three root cutting holes are dug in parallel at intervals corresponding to the width of the concrete structure 21. In addition, a portion of the support portion 20 that becomes the floor is also dug shallowly. Next, the bottom of the root cutting hole is filled with quarry and compacted to form the groundwork 17. In addition, quarry is also laid on the part that becomes the floor and rolling is performed. Then, the concrete is discarded and cast on the groundwork 17 of the root cutting hole. In this case, the top surface of the concrete that has been thrown out should be horizontal and at the same height in each root cutting hole.

Next, an empty coating mortar is applied to the abandoned concrete, and the foundation structure 12 is lifted by a crane or the like and placed on the abandoned concrete. Next, the floor is formed by placing concrete on the portion of the support portion 20 that will be the floor. Next, the block structure 21 is lifted by a crane or the like and sequentially placed on the foundation structure 12. At this time, the rising portion 14 of the foundation structure 12 is placed.
Put grout material such as mortar on the top surface of.

Each concrete structure 21 is replaced with the foundation structure 1.
At the stage of being mounted on 2, the three concrete structures 21 are provided in each through hole of the concrete structures 21 arranged in two rows.
The steel wire is inserted so as to penetrate through the steel wire, one end of the steel wire is fixed, and the other end of the steel wire is pulled and fastened to fix the concrete structures 21 ... Next, anchor bolts are fastened to the screw holes on the top surface of the top plate portion 23 of the concrete structure 21, and the foundation 31,
The first floor wall panel, floor panel, etc. are fixed and the housing section 30 is constructed.

As described above, according to the structure of the artificial ground and the structure of the house of this embodiment, the horizontal level of the supporting portion 20 can be adjusted by adjusting the horizontal level of the substructure 12, and the supporting portion 20 can be The horizontal level of the support portion 20 can be adjusted easily and accurately as compared with the case where the horizontal level of the entire provided portion is adjusted.

Further, since the floor of the supporting portion 20 is cast-in-place concrete, it is not so much affected by the unevenness and inclination of the ground, and when quarrying is laid on the floor portion of the supporting portion 20 and rolling is performed. Unlike the conventional example, it is not necessary to strictly perform the work of leveling the ground horizontally.

Further, since the upper surface of the top plate portion 23 can be freely used when constructing the housing portion 30 on the concrete structure 21, the pillars and walls of the housing portion 30 can be laid out as in the conventional example. There is no need to manufacture a girder together, and because it is not necessary to build a dwelling part on the girth whose shape is restricted by the distance between the side walls of the concrete structure 21, etc., the construction cost of the dwelling can be reduced. It is possible to reduce the number of layouts and increase the degree of freedom in the layout of the housing section 30.

The structure of the dwelling house of the present invention is not limited to the above-mentioned embodiment, and the specific constitutional requirements such as the shape, size and material of each member can be appropriately changed in the implementation. For example, in the above embodiment, the substructure 12
And the side wall portion 22 are joined together, the recess 1 is formed in the substructure 12.
5 is provided and the convex portion 25 is provided on the side wall portion 22 so as to be fitted thereto, but a combined metal piece 40 as shown in FIGS. 4 and 5 may be used. The combined metal piece 40 is composed of U-shaped metal pieces 41 and 41 having a U-shaped cross section as shown in FIG. 4, an anchor bolt 42, and two nuts 43 and 43.

The U-shaped metal piece 41 is formed by integrally forming a rectangular joining plate portion 44 and side plate portions 45, 45 extending at right angles from both side edges of the joining plate portion 44. An insertion hole 46 into which the anchor bolt 42 is inserted is formed in the joint plate portion 44. And this U-shaped hardware 41
Is embedded in the lower end of the side wall 22 or the upper end of the substructure 12. Then, the joint plate portion 4 of the U-shaped metal piece 41 embedded in the side wall portion 22 and the substructure 12
The outer surface of 4 is the lower surface of the side wall portion 22 or the substructure 12.
On the upper surface of, each surface is exposed in a flush state. In addition, a cutout portion 47 that is open to the side surface of the substructure 12 or the side wall portion 22 is formed in the inner portion of the embedded U-shaped metal piece 41.

One end of the anchor bolt 42 is formed as a male screw, and the other end is formed in a U-shape. The U-shaped other end side of the anchor bolt 42 is embedded in the foundation structure 12, and one end side formed as a male screw passes through the cutout portion 47 and penetrates the insertion hole 46 of the U-shaped metal object 41. It is adapted to extend to the upper surface side of the structure 12. The extended portion of the anchor bolt 42 is inserted into the insertion hole 46 of the U-shaped metal piece 41 of the side wall portion 22.

One of the nuts 43, 43 is previously screwed onto the lower side of the U-shaped metal 41 of the foundation structure 12 of the anchor bolt 42, and the other nut 43 is mounted on the foundation structure 12. The side wall portion 22 is placed, and the tip end portion of the anchor bolt 42 is screwed to the tip end of the anchor bolt 42 in a state where the tip end portion of the anchor bolt 42 is inserted into the insertion hole 46 of the U-shaped metal piece 41 of the side wall portion 22. And these two nuts 43,
The foundation structure 12 and the side wall portion 22 are fastened by tightening 43 from the top and bottom with a spanner or the like.

The U-shaped metal piece 41 on the side of the above-mentioned foundation structure
The sealing material 49 made of a resin having flexibility is inserted into the insertion hole 46 of the anchor bolt 42 in a state of being inserted through the anchor bolt 42 in advance. When placed on the object 12,
It is also designed to be inserted into the insertion hole 46 of the U-shaped metal 41 on the side wall 22 side.

Further, in the above-mentioned embodiment, the concrete structures 21 are fastened together by the steel wire.
It may be performed using the above-mentioned bonded metal or other bonded metal. Further, in the above embodiment, the supporting portion 20 is arranged such that three concrete structures 21 are arranged in two rows, but the arrangement is not limited to this arrangement, and the concrete structures 21 are arranged in one row or three rows. May be arranged, and the concrete structures 21 per row
You may change the number of.

Further, the cloth foundation portions 11 provided in three rows in the above-mentioned embodiment have one foundation structure 1 in each row.
2 is used, but the substructure 12 of the above embodiment is used.
A plurality of substructures shorter than the above may be connected in a line. Further, in this embodiment, the housing part 30 is placed on the artificial ground composed of the cloth foundation part 11 and the support part 20.
Was constructed as a structure of the house, but on the artificial ground,
It is not always necessary to construct the housing unit 30, and for example, the upper surface of the support unit 20 is used as a parking lot, or soil or the like is used as a garden or a park, or used to construct a structure other than a residence. It doesn't matter.

[0038]

As described above in detail, according to the structure of the artificial ground and the structure of the house of the present embodiment, if the horizontal level is adjusted only in the portion where the cloth foundation is arranged,
Since the horizontal level of the support section can be adjusted, the support section can be easily and accurately leveled compared to the case where the support section of the ground is leveled and leveled and the support section is placed. can do.

Further, since the upper part of the supporting part is a plane composed of the top plate part of the concrete structure, it is necessary to install a girder and install a pillar or a wall when constructing a residential part as in the conventional example. Since there is no such thing, the layout of the living part is not restricted by the girders, and the layout of the dwelling part can be freely performed, and the girders and block structures can be manufactured according to the layout of the dwelling part. Since it does not exist, it is possible to reduce the manufacturing cost of a house having a space such as a parking space at the bottom.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a structure of an artificial ground and a structure of a house of the above embodiment.

FIG. 2 is a sectional view of an essential part showing a structure of the artificial ground and a structure of a house.

FIG. 3 is a side view showing a structure of the artificial ground and a structure of a house.

FIG. 4 is a side view showing another connection method of the substructure and the side wall portion in the above embodiment.

FIG. 5 is a cross-sectional view showing the other connection method.

FIG. 6 is a cross-sectional view showing a structure of the above-mentioned conventional house.

[Explanation of symbols]

 11 Cloth foundation part 20 Support part 21 Concrete structure 22 Side wall part 23 Top plate part 30 Residential part

Claims (2)

[Claims] 1. An artificial ground comprising a support part made of precast concrete, the upper surface of which is an artificial ground, and a precast cloth foundation part which is connected to the lower end of the support part and supports the support part. In the structure of, the support portion is composed of a plurality of concrete structures joined to each other, the concrete structure is a rectangular plate-shaped top plate portion arranged horizontally, from both side edges of the top plate portion. Each of them is formed integrally with a vertically extending rectangular plate-shaped side wall in a substantially inverted U-shaped cross section, and the cloth foundation part is attached to the ground itself along the length direction of the lower surface of the side wall part of the concrete structure. A structure of artificial ground, wherein the lower part is arranged in a buried state, and the lower part of the side wall part and the upper part of the cloth foundation part are joined. 2. A precast concrete cloth foundation portion for supporting a house, a precast concrete support portion connected to an upper end of the cloth foundation portion, and a housing portion provided on the support portion. A structure of a house, wherein the support portion is composed of a plurality of concrete structures joined to each other, and the concrete structure is a horizontally arranged rectangular plate-shaped top plate portion and both side edges of the top plate portion. Each of them is formed integrally with a vertically extending rectangular plate-shaped side wall in a substantially inverted U-shaped cross section, and the cloth foundation part is attached to the ground itself along the length direction of the lower surface of the side wall part of the concrete structure. A structure of a house characterized in that the lower part is arranged in a buried state, the lower part of the side wall part and the upper part of the cloth foundation part are joined, and the house part is provided on a top plate part of the concrete structure.