JPH10252078A - Connected structure of foundation block and joining foundation block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connected structure, whereby foundation blocks freely arranged can easily be interconnected, and a joining foundation block. SOLUTION: First and second foundation blocks 1, 2 made of precast concrete are arranged in series, and a third foundation block 3 made of precast concrete is placed along a direction crossing them. The first foundation block (joining foundation block) 1 has a junction 11 at its end 1A, and the second and third foundation blocks 2, 3 have joint parts 12, 13 coupled to the junction 11, at their respective ends 2A, 3A. The joint parts 12, 13 include respective recessed parts 14, 15 each taking the form of U on plan view, which opens to the side of the junction 11, and the junction 11 has mating surfaces 21, 22 that receive the joint parts 12, 13. Connecting bars 25A, 25B, 26A, 26B are projected from the mating surfaces 21, 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure of a base block for connecting base blocks made of precast concrete (hereinafter, referred to as PC) constituting a foundation of a building, and a connecting base used for connecting base blocks. About the block.

[0002]

BACKGROUND ART Conventionally, the foundation of a building was made of cast-in-place concrete, but since the construction is complicated and the construction period is long, in recent years, a PC-made foundation block previously formed in a factory or the like is placed on the ground. It is made by arranging and connecting to each other. For example, as shown in FIG. 5, when three PC blocks 81, 82, 83 are connected in a T-shape, the first and second blocks 81, 82 are connected to the ends 81A, 82 of each other.
A are arranged in series so that they face each other, and these ends 81
The end 83A of the third block 83 is connected to the A, 82A by protruding at a right angle.

Each of the ends 81A, 82A, 83A of the blocks 81, 82, 83 is provided with a flat U-shaped recess 84 which opens toward the outer end. These recessed portions 84 include a first extending portion 86 linearly extending from a main body portion 85 of each of the blocks 81, 82, 83, and a first extending portion 8.
6 and a second extending portion 87 that is parallel to the first extending portion 6, and a reinforcing bar 88 that extends linearly from the main body portion 85 is embedded in the first extending portion 86. The third block 83 is arranged on the second extension portion 87 side of the first and second blocks 81 and 82.
When connecting such basic blocks 81 to 83,
At the construction site, the second extension 87 of the first block 81
The distal end portion 87A is cut off, thereby connecting the recesses 84 to each other to form a T-shaped connecting space 89. 92.

[0004]

According to this method, the leading end 87A of the second extension 87 of the first block 81 must be cut off at the construction site in order to form the connection space 89, which is complicated. Met. Further, the connecting space 89 has to be provided with the connecting streaks 91, which is troublesome. Further, in this structure, the first extension portion 8
Since the reinforcing bars 88 are buried in 6, it cannot be structurally lost. Therefore, the first and second blocks 81,
Since the blocks cannot be connected to the first extension portion 86 side 82, the arrangement of the basic blocks is restricted.

SUMMARY OF THE INVENTION An object of the present invention is to provide a basic block connecting structure and a connecting basic block which can easily connect the basic blocks and increase the degree of freedom of arrangement of the basic blocks.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings. The present invention relates to a connecting structure of a base block for connecting a precast concrete base block constituting a foundation of a building. A first basic block 1 with a joint 11, a second basic block 2 arranged in series with the first basic block and having a joint 12 at one end coupled to the joint, , A third basic block 3, 4 which is arranged in a direction intersecting with the second basic block and has a joint 13 at an end thereof, which is connected to the joint. The opening has open U-shaped depressions 14 and 15, and the joining part is a joining surface (21, 22, 23) for receiving each joint part of the second and third basic blocks.
The connecting surfaces 25A, 25B, 25C, 25D, 26A, which are respectively inserted into the recessed portions,
26B, 26C, and 26D are protruded, and concrete 33 is filled in the connection spaces 31, 32, and 34 surrounded by the depressions and the joint surfaces.

In the present invention, when the joints of the second and third basic blocks are brought into contact with the joint surfaces of the joints of the first basic block, the connecting surfaces surrounded by the joint surfaces and the recesses of the joints are naturally formed. Since a space is created, the joint of the first foundation block and each joint of the second and third foundation blocks can be individually connected only by filling the space with concrete. Therefore, since it is not necessary to connect the recessed portions to each other, the trouble of losing the block can be omitted, and the connecting work at the construction site can be facilitated. Furthermore, if the joining surface is formed in accordance with the number and arrangement of the third basic blocks, the arrangement of the third basic blocks is not restricted, so that the number of the basic blocks and the degree of freedom of arrangement can be increased. .
In addition, since connecting bars inserted into the recesses are protrudingly provided on the joint surface, the connecting bars are buried in the connecting space, so that the conventional connecting bars need not be disposed in the connecting space. The connection operation can be simplified because the operation is improved.

The above-mentioned joining surface includes a first joining surface 21 for receiving the joint portion of the second basic block, and a second joining surface 22 orthogonal to the first joining surface. One is placed at right angles to the first and second basic blocks,
The joint of the third basic block may be connected to the second joint surface. In this way, three first, second,
The third basic block can be easily connected in a T-shape.

[0009] The above-mentioned joint surface includes a first joint surface for receiving the joint portion of the second basic block, and a pair of second joint surface and a third joint surface orthogonal to the first joint surface. Three basic blocks, two are arranged at right angles to the first and second basic blocks with the joint therebetween, the joint of one third basic block is connected to the second joint surface, and the other of the third basic block The joint may be connected to the third joint surface. In this way, the four first, second, and third basic blocks can be easily connected in a cross shape.

On the other hand, the present invention relates to a joining base block 1 made of precast concrete which constitutes a foundation of a building, and has an end portion connected to an end portion of another foundation block 2, 3, 4 for mutual connection. At least one pair of joining surfaces 2 orthogonal to each other
1, 22, 23, and connecting surfaces of the connecting bars 25A, 25A inserted into the ends of the other basic blocks.
B, 25C, 25D, 26A, 26B, 26C, 26D
Mounting parts (27A, 27B, 27C,
27D), and the connecting bars are selectively attached to these attachment portions.

Since the joining basic blocks of the present invention have joining surfaces orthogonal to each other, other basic blocks can be selectively joined to these joining surfaces. Therefore, it is possible to cope with various variations of the arrangement of the basic blocks,
The degree of freedom in arranging the basic blocks can be increased. For example, when three joining surfaces that are orthogonal to each other are formed, that is, when two joining surfaces that are parallel to each other are provided so as to be orthogonal to one joining surface, two of those joining surfaces that are orthogonal to each other are provided. By connecting the ends of the other basic blocks to the respective joining surfaces, the three basic blocks can be connected in a T-shape. Alternatively, by connecting the ends of the other basic blocks to the three joining surfaces, the four basic blocks can be connected in a cross shape.

[0012] Further, since the connecting surface is provided with an attaching portion for attaching the connecting bar, the connecting bar can be selectively mounted only on the connecting surface that connects the other basic blocks.
The joining basic block and other basic blocks can be securely and firmly connected. Further, since connecting bars are provided at the connecting portion between the connecting base block and another base block, the labor for arranging the conventional connecting bars 91 (see FIG. 5) can be omitted. The connection work of the basic blocks can be facilitated. Further, since the connecting bars can be formed separately, space saving can be achieved when storing and transporting the joining basic blocks.

The above-mentioned mounting portions are nuts 27A, 27B,
27C and 27D, and it is desirable that the connecting bar is selectively screwed into the nut. With this configuration, the connecting bar can be easily attached to and detached from the joint surface.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the connection structure of the basic blocks 1, 2, and 3 of the present embodiment that constitutes the foundation of a building. The foundation is, for example, a cloth foundation of an industrialized house built by a panel construction method in which a wall panel, a floor panel, a ceiling panel, a roof panel (not shown), and the like are assembled and constructed as a structural body. 1, 2, and 3 are arranged along the wall composed of the wall panels. In the foundation, PC base blocks 1, 2, 3
Constitutes a rising portion which rises upward from a footing portion (not shown). The footing portion may be formed by cast-in-place concrete, or may be formed by disposing a PC footing member on the ground.

The basic blocks 1, 2, 3 are arranged in a T-shape. That is, the first basic block 1 as a joining basic block and the second basic block 2 as another basic block are arranged in series such that their ends 1A and 2A face each other, and are other basic blocks. The third basic block 3 is disposed at right angles to the first and second basic blocks 1 and 2 with the end 3A facing the first and second basic blocks 1 and 2. First basic block 1
As shown in FIG. 2, the end portion 1A has a joint portion 11 having a larger width dimension (dimension in a direction orthogonal to the longitudinal direction) than the main body portion 1B.

The second and third basic blocks 2 and 3 have joints 12 and 13 connected to the joint 11 of the first basic block 1 at the ends 2A and 3A, respectively. The width dimension of these joint portions 12, 13 is formed larger than each main body portion 2B, 3B. The joints 12 and 13 have flat U-shaped recesses 14 and
15 are provided. By these depressions 14 and 15,
At the ends 2A, 3A of the second and third basic blocks 2, 3,
A first extending portion 16 extending linearly from the main body portions 2B and 3B, and a second extending portion 17 parallel to the first extending portion 16;
Are formed.

The joint portion 11 of the first basic block 1 has three mutually orthogonal joining surfaces 21, 22, 2 for receiving the joint portions 12, 13 of the second and third basic blocks 2, 3.
3 is provided. These joining surfaces 21, 22, 23
First joint surface 2 receiving joint portion 12 of second base block 2
1 and a pair of a second bonding surface 22 and a third bonding surface 23 orthogonal to the first bonding surface 21.
Of these, connecting bars 25A, 25B, 26A, 26B inserted into the recesses 14, 15 of the second and third basic blocks 2, 3 respectively protrude from the first and second joint surfaces 21, 22. Have been. These connecting muscles 25A, 25B, 26
A and 26B have the tip part curved in a J-shape. On the first joint surface 21, two connecting bars 25A, 25B are vertically arranged side by side, and on the second joint surface 22, similarly, two connecting bars 26A, 26B are vertically arranged side by side. I have.

Connecting bars 25A, 25B of first joint surface 21
Are screwed into nuts 27A and 27B as attachment portions provided on the first joining surface 21, respectively, as shown in FIG. Similarly, although not shown, the second and third joint surfaces 2
Each of the nuts 2 and 23 is provided with four nuts as mounting portions,
The connecting bars 26A, 26B of the second joint surface 22 are screwed into nuts of the second joint surface 22, respectively. Further, since the base block is not joined to the third joint surface 23, no connecting bar is attached to the nut of the third joint surface 23.

Returning to FIG. 1, the first joining surface 21 of the first basic block 1 has the first
The second extending portions 16 and 17 are in contact with each other, and the first and second extending portions 16 and 17 of the third basic block 3 are in contact with the second joint surface 22. The connection space 31 surrounded by the recessed portion 14 of the second basic block 2 and the first joint surface 21 is filled with concrete 33, whereby the first and second basic blocks 1 and 2 are connected to each other. ing. In addition, the connection space 32 surrounded by the recess 15 of the third basic block 3 and the second joint surface 22 is filled with concrete 33, whereby the first and third basic blocks 1 and 3 are mutually connected. Are linked.

According to this embodiment, the following effects can be obtained. That is, the second and third basic blocks 2 and 3 are jointed with the joints 12 and 13 having the depressions 14 and 15.
Since the first basic block 1 has first and second joint surfaces 21 and 22 for receiving the joint portions 12 and 13, the first and second joint surfaces 21 and 22 of the joint portion 11 have second and second joint surfaces 21 and 22, respectively.
When the joint portions 12 and 13 of the third basic blocks 2 and 3 are brought into contact with each other, the connecting space 31 surrounded by the first joint surface 21 and the concave portion 14 and the second joint surface 22 and the concave portion 1
5 and a connection space 32 surrounded by the connection space 5. Therefore, the joint portion 11 of the first basic block 1 and the joint portions 12, 13 of the second and third basic blocks can be individually connected only by filling the connection spaces 31, 32 with the concrete 33. In addition, it is not necessary to connect the recesses 14 and 15 to each other, and it is possible to omit the trouble of losing the block as in the related art, thereby facilitating the connection work at the construction site.

The first and second joining surfaces 21 and 22 have
Connecting bars 25A inserted into the recesses 14 and 15, respectively;
Since the projections 25B, 26A, 26B protrude, the connection spaces 31, 3, which are the connection portions between the blocks 1, 2, 3 are provided.
Since the connecting bars 25A, 25B, 26A, and 26B are buried respectively in the two, it is not necessary to arrange the conventional connecting bars (see FIG. 5), so that the connecting operation can be simplified.

The first basic block 1 has first, second, and third joining surfaces 21, 22, and 23 orthogonal to each other. The second and third basic blocks 2 and 3 can be combined.
Therefore, not only the case where the blocks 1, 2, 3 are arranged in a T shape but also various variations in the arrangement of the basic blocks 1, 2, 3 can be accommodated.
It is possible to increase the degree of freedom of the arrangement of a few.

For example, without connecting the third basic block 3 to the second and third joint surfaces 22 and 23, the first basic block 1
If the second basic block 2 is connected only to the first joining surface 21, the two basic blocks 1 and 2 can be connected in series. In this case, connecting bars of the second and third joint surfaces 22 and 23 are omitted. Alternatively, if the second basic block 2 is omitted and the third basic block 3 is connected to only one of the second and third joint surfaces 22 and 23, the two first and third basic blocks 1 and 3 Can be connected at right angles. In this case, connecting bars are attached to only one of the second and third joint surfaces 22 and 23. Also, if the third basic block 3 is connected to the third bonding surface 23 instead of the second bonding surface 22, the three basic blocks 1, 2, 3 can be connected in a T-shape. In this case, the connecting bars 26A and 26B of the second connecting surface 22 are omitted, and the connecting bars are screwed into nuts (not shown) of the third connecting surface 23.

Alternatively, as shown in FIG. 4, the third basic block 4 is arranged at right angles to the first and second basic blocks 1 and 2 on the opposite side of the third basic block 3 with the joint portion 11 interposed therebetween.
The joint portion 13 of the third basic block 4 is
The four first, second, and third basic blocks 1, 2, 3, and 4 can be easily connected in a cross shape. In this case, the connecting bars 28A (only the uppermost connecting bars 28A are shown) are screwed into the nuts (not shown) of the third joint surface 23, respectively, so that the connection joint surrounded by the third joint surface 23 and the recessed portion 15 is formed. Concrete 33 is poured into the space 34 to connect the first and third foundation blocks 1 and 4 to each other.

Then, each joining surface 2 of the first basic block 1
1, 22, 23 include connecting muscles 25A, 25B, 26A,
Since nuts 27A, 27B for attaching 26B are provided respectively, connecting bars 25A, 25B, 26B are provided.
A, 26B can be selectively mounted only on the first and second joint surfaces 21, 22 for joining the second and third basic blocks 2, 3, so that the first basic block 1 and the second and third basic blocks are provided. 2 and 3 can be securely and securely bonded. Furthermore, connecting muscle 2
5A, 25B, 26A, 26B are bonding surfaces 21, 22, 2
The first base block 1 is detachable from the base block 3 and can be separated from the base block 3, so that space can be saved when the first base block 1 is stored or transported.

Then, the connecting muscles 25A, 25B, 26A,
26B is screwed into nuts 27A, 27B provided on the first and second joint surfaces 21, 22, so that the connecting streaks 25
A, 25B, 26A, 26B are first and second joint surfaces 21,
22 can be easily attached and detached.

It should be noted that the present invention is not limited to the above-described embodiment, but includes other configurations capable of achieving the object of the present invention, and also includes the following modifications.
That is, although the bonding portion 11 of the embodiment has three bonding surfaces 21, 22, 23 orthogonal to each other, the third bonding surface 23 is omitted and only the first and second bonding surfaces 21, 22 are provided. Alternatively, the second joint surface 22 may be omitted and only the first and third joint surfaces 21 and 23 may be provided.

[0028]

As described above, according to the present invention,
The second and third basic blocks each have a joint portion having a concave portion at an end portion, and the first basic block has a joint surface for receiving these joint portions. Therefore, a connection space surrounded by the joint surface and the concave portion. The joint of the first foundation block and each joint of the second and third foundation blocks can be individually connected only by filling the concrete with concrete. Therefore, since it is not necessary to connect the recesses to each other, the trouble of losing the block can be omitted, and the connection work at the construction site can be facilitated. Furthermore, if the joining surfaces are formed in accordance with the number and arrangement of the third basic blocks, the number and arrangement of the third basic blocks are not restricted, so that the degree of freedom can be increased. In addition, since connecting bars inserted into the recesses are protrudingly provided on the joint surface, the connecting bars are buried in the connecting space, so that the conventional connecting bars need not be disposed in the connecting space. The connection operation can be simplified because the operation is improved.

On the other hand, according to the present invention, since the joining basic blocks have joining surfaces orthogonal to each other, other basic blocks can be selectively joined to these joining surfaces. Can respond to variations. Also, since the connecting surface is provided with an attaching portion for attaching the connecting bar, the connecting bar can be selectively attached only to the connecting surface connecting the other basic blocks, so that the connecting basic block and the other basic block can be attached. The block and the block can be securely connected. In addition, since connecting bars are installed at the connecting portion between the connecting base block and another base block, the labor of arranging the conventional connecting bars can be omitted. Can be facilitated.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a connection structure of the basic blocks of the embodiment.

FIG. 3 is a cross-sectional view showing a joint of the embodiment.

FIG. 4 is a plan view showing another embodiment of the present invention.

FIG. 5 is a plan view showing a conventional basic block connection structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st basic block (joining basic block) 2 2nd basic block 3 3rd basic block 11 joining part 12, 13 joint part 14, 15 hollow part 21 1st joining surface (joining surface) 22 2nd joining surface (joining) Surface) 23 Third joint surface (joint surface) 25A, 25B, 26A, 26B, 28A Connecting bar 27A, 27B Nut (attachment) 31, 32 Connecting space 33 Concrete

Claims (5)

[Claims] 1. A connection structure of a foundation block for connecting a precast concrete foundation block constituting a foundation of a building, comprising: a first foundation block having a joint at an end; And a second basic block provided with a joint portion coupled to the joining portion at the end, and the first and second basic blocks are disposed in a direction intersecting with the first basic block, and at the end A third base block including a joint portion coupled to the joint portion, wherein the joint portion has a flat U-shaped recessed portion that opens to the joint portion side; A joint surface for receiving each joint portion of the second and third basic blocks is provided. On these joint surfaces, connecting bars inserted into the recesses are respectively provided so as to protrude. Concrete in the enclosed connection space Coupling structure foundation blocks but characterized in that it is filled. 2. The connection structure for a foundation block according to claim 1, wherein the joining surface includes a first joining surface that receives a joint portion of the second foundation block, and a second joining surface that is orthogonal to the first joining surface. Wherein the third basic block is disposed at a right angle to the first and second basic blocks, and a joint of the third basic block is coupled to the second joint surface. The connection structure of the basic blocks. 3. The connection structure for a foundation block according to claim 1, wherein the joining surface includes a first joining surface for receiving a joint portion of the second foundation block, and a pair of first joining surfaces orthogonal to the first joining surface. A second joint surface and a third joint surface, wherein two of the third basic blocks are disposed at right angles to the first and second basic blocks with the joint therebetween. The joint structure of the basic block, wherein a portion is coupled to the second joint surface, and a joint portion of the other third basic block is coupled to the third joint surface. 4. A joining base block made of precast concrete forming a foundation of a building, comprising at least one pair of joining surfaces orthogonal to each other for joining to an end of another foundation block. Attachment portions for attaching connecting bars inserted into the ends of the other basic blocks are provided on these joint surfaces, and the connecting bars are selectively attached to these attaching portions. A joining basic block characterized by the following. 5. The joining basic block according to claim 4, wherein the mounting portion is a nut, and the connecting bar is selectively screwed into the nut.