JPH081071B2 - Basic construction method for unit housing - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foundation construction method for a unit house, and more particularly to a construction method for factory-manufacturing the foundation in the same manner as a unit house.

[0002]

[Background Art] A unit housing is built by pre-producing a plurality of housing units, which are components of the unit housing, in a factory, and transporting these housing units to a construction site to combine them. By reducing the work rate at the construction site and increasing the industrialization rate, the construction period can be shortened, work can be facilitated, and costs can be reduced. On the other hand, the basis of unit housing is generally
It was made by assembling a foundation formwork at a construction site and pouring concrete slurry into it.

[0003]

Therefore, the foundation of the unit housing is made by the cast-in-place concrete method like the foundation of the conventional construction housing, and the unit housing built on the foundation is industrially manufactured to improve the industrialization rate. Even if it was achieved, it took a lot of time and labor to make the foundation, and the industrialization of the foundation part had not progressed sufficiently. On the other hand, various technologies have been proposed for making the foundation of a house by using precast concrete blocks produced at the factory, but these are based on the foundation that makes full use of the shape characteristics of the housing unit that has a cubic shape as a whole. Therefore, it has not been possible to sufficiently make the basic construction work of the unit housing and shorten the construction period sufficiently.

An object of the present invention is to provide a foundation construction method for a unit house, which can form a foundation utilizing the shape characteristics of the housing unit, facilitate the foundation construction work, and shorten the construction period. is there.

[0005]

SUMMARY OF THE INVENTION The present invention is a foundation construction method for a unit house, wherein a foundation member is arranged on a footing member arranged on the ground of a construction site to form a foundation,
The shape of the rising member is a flat quadrangle based on the bottom shape of the housing unit that is a component of the unit housing, and after this rising member is produced at the factory, it is transported to the construction site and placed on the footing member. After that, the housing unit is placed on the rising member.

The plane quadrangle of the rising member may have a size slightly larger than the bottom shape of the housing unit, or may have a size corresponding to the bottom shape of the housing unit.

When the plane quadrangle of the rising member has a size slightly larger than the bottom shape of the housing unit, a plurality of rising members are arranged on the footing member with a space and two adjacent ones. The entire one of the housing units is placed on the rising member, and the other housing unit is placed on the two rising members that are lined up at intervals. To be done.

[0008] When the plane quadrangle of the rising member has a size corresponding to the shape of the bottom surface of the housing unit, the respective rising members are arranged adjacent to each other on the footing member, and the rising members are placed on the rising members. Each one housing unit is placed.

In the above, the footing member may be one produced in a factory like the rising member, or one made of cast-in-place concrete at a construction site.

[0010]

In the factory, the rising member is made into a flat quadrangle based on the shape of the bottom surface of the housing unit, and is transported to the construction site together with the housing unit. For this reason, at least the rising member of the members constituting the foundation is factory-produced,
The rate of industrialization of the foundation increases. In addition, since the rising member is made into a flat quadrangle based on the bottom shape of the housing unit and has a shape that utilizes the shape characteristics of the unit housing as it is, when the housing unit is transported by truck to the construction site, the rising member is It is possible to transport the rising member together with the housing unit to the construction site since it can be transported as if it does not exceed the size on the transportation limit. Also, when the rising member is placed on the footing member at the construction site, since the rising member has the same planar quadrangle as the bottom shape of the housing unit,
Subsequently, it is possible to perform the work of mounting the housing unit on the rising member, facilitating the work at the construction site and shortening the work time.

[0011]

An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows an overall plan view of the foundation according to this embodiment, and FIG. 2 is a perspective view thereof. The foundation is a plurality of linear plate-like footing members 1 arranged in parallel on the ground,
It is composed of a plurality of rising members 2 which are arranged so as to be bridged over two adjoining footing members 1, and the rising members 2 are planar quadrangles. The footing member 1 is made of precast concrete, and the rising member 2 is made of a steel frame as shown in FIG.

The plane quadrangle of the rising member 2 is based on the shape of the bottom surface of the housing unit 3 which is a constituent element of the unit house, and the housing unit 3 can be placed on the rising member 2. . Specifically, in this embodiment, as shown in FIG. 1, the front-rear dimension L ₁ of the rising member 2 is slightly larger than the front-rear dimension W ₁ of the housing unit 3, and dimension L ₂ is slightly larger than the lateral dimension W ₂ of the housing unit 3. Therefore, when the housing unit 3 is placed on the rising member 2 with one corner portion of these 2, 3 being aligned, one end portion in the front-rear direction and one end portion in the left-right direction of the rising member 2 are placed in the housing unit. Three
The bottom end of another housing unit 3 adjacent to the housing unit 3 placed on the rising member 2 in the front-rear direction and the left-right direction is placed on the protruding part. Is able to.

The plane quadrangular rising member 2 is mainly composed of pillars 4 provided at respective corners of the four corners and a connecting member 5 connecting the pillars 4, and the number of pillars 4 is four. There is one corner, but there are two or more corners. More specifically, a pillar (indicated by reference numeral 32 in FIG. 7) is provided at each corner of the housing unit 3, and the number of pillars 4 at each corner of the rising member 2 is the same as that of the rising member 2. Residential units 3 gathered in the corner
The same number as the number of pillars, and the total number of pillars for housing unit 3 is 4
Four pillars 4 are provided at the corners of the standing member 2 that gathers together, and two pillars 4 are provided at the corners of the standing member 2 that gathers a total of two pillars of the housing unit 3. ,
Only one pillar 4 is provided at the corner portion of the rising member 2 where the housing unit 3 has only one pillar. That is, one of the housing units 3 is placed on one pillar 4 of the rising member 2.
Therefore, in the present embodiment shown in the drawings, the dimension difference between L ₁ and W _{1 and} the dimension difference between L ₂ and W ₂ are equal to the dimension T of the column of the column 4 of the rising member 2. (The dimensions of the pillars of the housing unit 3 are the same).

As shown in FIGS. 3 and 4, the connecting member 5 is a lattice composed of an upper member 6 made of a channel material, a lower member 7 made of the same channel material, and an intermediate member 8 connecting these upper and lower members 6, 7. This connecting member 5 is formed in a beam shape.
Both ends of the are joined to the pillar 4 at each corner of the rising member 2. As shown in FIGS. 4 and 5, the pillar 4 and the connecting member 5 are joined by an L-shaped bracket 9 on the upper and lower portions of the side surface of the pillar 4.
Is attached by welding, the bolt 10 provided on the vertical portion 9A of the bracket 9 is inserted into the outermost member 8A of the intermediate member 8, and the bolt 1 is attached to the horizontal portion 9B of the bracket 9 and the lower member 7.
1 through the nuts 12, these bolts 10, 11
It is performed by screwing 13 together and tightening.

As shown in FIG. 4, each pillar 4 is made of a hollow prismatic material, the upper end of which is closed by a top plate 14, and a hole 15 is provided in this top plate 14. An opening 16 is formed on the side surface of each pillar 4. Further, at the lower end of the pillar 4, the base plate 1
7 is provided, and an anchor member 18 protruding downward from the base plate 17 is provided for each of the columns 4.

As shown in FIG. 3, a face material 19 made of, for example, a calcium silicate plate is attached to one of the four side surfaces of the rising member 2 which is the outer side of the unit house, and the pillar 4 and the connecting member 5 are the unit. It is not exposed outside the house. FIG. 6 shows a mounting structure of the face material 19. Holes 20 are provided in the vertical portions 6A, 7A of the upper and lower members 6, 7 of the connecting member 5 on the outer side of the unit house, and the protrusions 1 provided in the face material 19 so as to be inserted into these holes 20.
A nut 21 is embedded in 9A. Protrusion 19A
Bolt into the hole 20 and the head of the bolt 2 is larger than the hole 20
The face member 19 is attached to the connecting member 5 by screwing 2 into the nut 21 and tightening. In addition, the holes 2 are formed in the vertical portions 6B and 7B of the upper and lower members 6 and 7 inside the unit house.
3 is formed so that the bolt 22 can be rotated by a tool such as a screwdriver inserted through these holes 23.

The footing member 1 and the rising member 2, which are the basic constituent members described above, are produced in advance in a factory, and then transported by truck together with the housing unit 3 to the construction site of the unit housing.

Next, the work for constructing the foundation at the construction site will be described. As shown in FIG. 7, crushed stones 25 are laid on the ground 24 at the construction site, and abandoned concrete 26 is cast thereon. The footing members 1 are placed on the discarded concrete 26, and the footing members 1 are arranged in parallel at an interval of W ₁ as shown in FIG. As shown in FIG. 7, each footing member 1 is provided with a hole 27 for inserting the anchor member 18 of the rising member 2 and a nut 29 into which a height level adjusting bolt 28 is screwed. The hole 27 is filled with the grout material 31 while preventing leakage with the seal material 30 arranged on the upper surface of the footing member 1,
Next, while the rising member 2 is being lifted by a crane or the like, the lifting member 2 is gradually lowered from above the footing member 1, and the anchor member 18 is moved into the hole 27 while adjusting the height level of the rising member 2 with the height level adjusting bolt 28. insert. In this way, the work of arranging the rising member 2 on the footing member 1 is performed, and this work is performed by bridging the rising member 2 between two adjacent footing members 1 as shown in FIG.

The above-mentioned work of arranging the rising members is carried out for each of the rising members 2, and these rising members 2 are placed on the footing member 1 at predetermined intervals in the front-rear direction and the left-right direction as shown in FIG. Is located in. The spacing of the rising members 2 in the front-rear direction is W ₁ -2T, and the spacing in the left-right direction is W ₂ -2T.

After the grout material 31 is solidified, the housing unit 3 is lifted by a crane or the like, and the pillars 32 at the corners of the housing unit 3 shown in FIG. 7 are aligned with the pillars 4 of the rising member 2, respectively. The housing unit 3 is placed on the rising member 2. At this time, the bolt 34 provided on the base plate 33 of the pillar 32 is inserted into the hole 15 of the top plate 14 of the pillar 4, and the nut 35 is screwed into the bolt 34 by a hand or a tool inserted through the opening 16. And tighten. As a result, the housing unit 3 is attached to the rising member 2.
Will be combined.

As described above, the housing unit 3 is attached to the rising member 2
The operation of placing the housing units on one of the two adjacent housing units 3 is to place the entire one housing unit 3 on the rising member 2 and place the other housing unit 3 in the front-rear direction or the left-right direction. The housing unit 3 is mounted on the two rising members 2 arranged with a space between them, and these housing units 3 are mounted on the rising member 2 with the bolts 34 and nuts shown in FIG. They are bound by the binding structure of 35.

In this way, of the two adjacent housing units 3, one housing unit 3 is wholly the rising member 2.
And the other housing unit 3 is laid over the two rising members 2 and the housing units 3 are connected to each other by bolts, nuts and the like. As a result, as shown in FIG. 8, the footing member 1 and the rising member 2 are
A unit house consisting of a plurality of housing units 3 will be built on the foundation consisting of and. 36 shown in FIG.
Is soil generated by root cutting work of the ground, and is the rising member 2
The soil is covered up to about half the height of.

In the above, in order to insert a hand or a tool through the opening 16 shown in FIG. 7 and tighten the nut 35, an operator enters inside the rising member 2 on which the housing unit 3 is placed. Although it may be necessary in some cases, in order to allow the worker to enter the inside of the rising member 2, for example, a hole for communicating the inside and outside of the rising member 2 may be dug in the ground.

According to this embodiment described above, since the footing member 1 and the rising member 2 are produced in advance in the factory and transported to the construction site, it is possible to increase the industrialization rate of the constituent members of the foundation. The work at the construction site can be facilitated and the construction period can be shortened. Also, the rising member 2
Is formed in a plane quadrangle based on the bottom surface shape of the housing unit 3, and the dimension L ₁ of the rising member 2 in the front-rear direction and the left-right direction,
Since L ₂ is only slightly larger than the dimensions W ₁ and W _{2 of} the housing unit 3, when the housing unit 3 is transported by truck to the construction site, the rising member 2 also clears the transportation restriction dimension and is the same. Can be transported by truck to the construction site. At the construction site, the rising member 2 is the housing unit 3
Since it is preliminarily produced in the factory in the shape of a flat quadrangle like the bottom shape of the housing, the standing unit 2 can be placed on the footing member 1 as it is, and then the housing unit 3 can be placed on it. It is not necessary to perform the work of connecting a plurality of members at the construction site in order to obtain the rectangular rising member, and in this respect also, the simplification of the foundation construction work at the construction site can be achieved.

Further, in the present embodiment, the plane quadrangle of the rising member 2 is slightly larger than the shape of the bottom surface of the housing unit 3, and the plurality of rising members 2 are spaced apart from each other on the footing member 1. Two adjacent residential units 3 located in
One of the housing units 3 is entirely placed on the rising member, and the other housing unit 3 is placed on the two rising members 2 so that all the housing units are placed. Since it is not necessary to provide the rising members 2 for every three units, and the rising members 2 may be provided for every other housing unit 3, the number of necessary members can be reduced.

FIG. 9 shows another embodiment of the present invention. In this embodiment, the dimensions of the rising member 2 ′ in the front-rear direction and the left-right direction are W ₁ and W ₂ which are the same as the dimensions of the housing unit 3, and therefore,
The size of the rising member 2'corresponds to the size of the housing unit 3. In this embodiment, the respective rising members 2'are arranged on top of one another on the footing member 1, on which one housing unit 3 is mounted respectively.

According to this embodiment, the rising member 2'should be provided for each of the housing units 3, but other than that, the same effect as the above embodiment can be obtained.

In the embodiment described above, the footing member 1 is a precast concrete block produced in a factory. However, the footing member may be made of cast-in-place concrete, and like the rising member having a rectangular shape in plan view. It may be formed in a planar shape. Further, the rising member is not limited to that in the above-mentioned embodiment, but may be made of precast concrete, for example.

[0029]

According to the present invention, since the rising member on which the housing unit is placed is produced in the factory in the shape of a flat quadrangle based on the shape of the bottom surface of the housing unit, the foundation is made effective by the shape characteristics of the housing unit. Therefore, it is possible to facilitate the foundation construction work at the construction site and shorten the construction period.

[Brief description of drawings]

FIG. 1 is an overall plan view of a foundation to which a construction method according to an embodiment of the present invention is applied.

FIG. 2 is a perspective view of the same.

FIG. 3 is a perspective view showing a rising member.

FIG. 4 is an enlarged view of a main part of FIG. 3;

5 is a cross-sectional view showing a joint structure between the column and the connecting member shown in FIG.

FIG. 6 is a cross-sectional view showing a structure for mounting a face material provided on the rising member.

FIG. 7 is a cross-sectional view showing a coupling structure of a footing member and a rising member, and a joining structure of a rising member and a housing unit.

FIG. 8 is an overall perspective view showing a state where a unit house is built on a foundation.

FIG. 9 is a view similar to FIG. 1 showing another embodiment.

[Explanation of symbols]

 1 Footing member 2, 2'Startup member 3 Housing unit 4 Pillar 5 Connecting member 9 Bracket 18 Anchor member 19 Face material 24 Ground 28 Height level adjusting bolt 31 Grout material

Claims (3)

[Claims] 1. A foundation construction method for a unit house in which a standing member is arranged on a footing member to form a foundation, wherein the standing member is based on a bottom surface shape of a housing unit which is a constituent element of the unit house. Unit in which the housing unit is mounted on the footing member after the footing member is placed on the footing member at a construction site of a unit house. Basic construction method for housing. 2. The basic construction method for a unit house according to claim 1, wherein the plane quadrangle of the rising member is formed to have a size slightly larger than a bottom shape of the housing unit, and a plurality of the rising members. Are arranged on the footing member with a space therebetween, and one of the two adjacent housing units is entirely mounted on the rising member, and the other housing unit is A basic construction method for a unit house, characterized in that the foundation work is laid over the two rising members arranged side by side with a space therebetween. 3. The basic construction method for a unit house according to claim 1, wherein the planer quadrangular shape of the rising member is formed in a size corresponding to a bottom surface shape of the housing unit, and is adjacent to the footing member. A method of foundation construction of a unit house, wherein each one of the housing units is placed on each of the rising members arranged as a unit.