JPH06287963A - Connecting joint member for foundation concrete block - Google Patents

Abstract

PURPOSE:To conform the heights of adjacent blocks to each other only by the connecting work of adjacent joint member themselves. CONSTITUTION:In one of adjacent foundation concrete blocks, a first joint member 2 having a front plate 21 having a protruding part 21a and a fixed plate 22 connected and fixed to a reinforcement arranged in the inner part of a base part or raised part is arranged in such a manner that the protruding part 21a is protruded from the side end part of the base part and raised part. A second joint member 3 having a front plate 31 having a recessed part 31a of the form fittable to the protruding part 21a of the first joint member 2 and a fixed plate 32 connected and fixed to a reinforcement arranged in the inner part of the base part or raised part is arranged on the side end part of the base part and raised part in the other foundation concrete block. The both are closely fixed to each other by a connecting means 4 so that the protruding part 21a of the first joint member 2 is fitted to the recessed part 31a of the second joint member 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint member for a foundation concrete block, which is used when the precast concrete blocks used as the foundation of a building are successively arranged.

[0002]

2. Description of the Related Art For example, in a building such as a wall type precast reinforced concrete structure, precast concrete manufactured outside the site is used as a foundation. Then, as the precast concrete for the foundation, conventionally, a base part having a constant thickness and a rising part having a constant thickness as a whole like the base part are separately formed, and the base is formed. The one in which the rising portion is fitted into the recess formed on the upper surface of the base portion, and the rising portion and the base portion are further fixed by an L-shaped angle member or the like is used.

Further, this is caused by the complexity of the assembling work at the site when the base part and the rising part are molded separately, and because the rising part has a predetermined thickness, the weight is considerably heavy. In consideration of the inconvenience of handling, the inventor of the present invention has previously proposed and disclosed the utility model Hei 4-105134.
As shown in Japanese Patent Publication, while the thickness in the vicinity of the central portion in the vertical direction is reduced, the rising portion that becomes thicker toward the top and the base portion, and the base of the integrated structure of the base portion. Concrete blocks are also known.

Further, the present inventor has made improvements and made a patent application No. 4
No.-75648, the thickness of the rising part near the central part in the vertical direction is small, and the thickness becomes thicker toward the top end and the base part. There are various types of precast concrete blocks for foundations, such as an integral structure in which a rising portion is provided on a base portion and ribs are formed on both sides thereof so as to project along a substantially vertical direction.

[0005]

By the way, regardless of which concrete block for foundation is to be used, it is necessary to connect and fix adjacent concrete blocks when constructing a cloth foundation by placing a plurality of concrete blocks on the site. There is. Therefore, conventionally, a mounting portion for arranging a joint member is cut out at a side end portion of each block, a plate-shaped member is bridged between the mounting portions of adjacent blocks, and both end portions of the plate-shaped member are bolted. It is performed by screwing and fixing to each mounting portion.

However, when the plate-like member and the bolts are connected and fixed, the height of the adjoining mounting portions is increased in order to facilitate the fastening work and to improve the strength of the cloth foundation as a whole. That is, it is necessary to make the heights of the adjacent start-up portion and the base portion coincide with each other. In order to match the heights in this way, it is possible to precisely level the foundation surface on which the concrete block for foundation is placed, but it is difficult to level the foundation surface in this way, Usually, a certain amount of mortar between the bottom of the base and
Cement is injected, or an adjuster mechanism is installed on the bottom of the base to adjust the height. Therefore, in order to fix and connect the blocks placed adjacently, it is necessary to perform position adjustment such as height adjustment before fastening work of the joint member itself, which is very troublesome. Met.

The present invention has been made in order to solve the above problems, and it is not necessary to perform position adjustment such as height adjustment in advance, and only the joint work of the adjacent joint members itself is performed, and the height of the adjacent blocks is also increased. An object of the present invention is to provide a joint member for continuously arranging foundation concrete blocks that can be matched.

[0008]

In order to achieve the above object, a joint member for continuously arranging a foundation concrete block of the present invention comprises a base portion and a base portion protruding from the base portion at a predetermined height. A joint member for a foundation concrete block arranged at a side end of a rising portion, the front plate having a projecting projection, the front plate being integrally formed with the front plate, and the base plate. In one of the adjoining concrete blocks for foundation, which has a fixing plate connected and fixed to a reinforcing bar disposed inside the base or the rising portion, a convex portion from the side end of the base and the rising portion. A first joint member arranged so as to project, a front plate formed with a concave portion having a shape capable of fitting with a convex portion of the first joint member, and integrally formed with the front plate Together with it, it is connected to the reinforcing bar that is placed inside the base or start-up section. In the other concrete block for foundation, the base plate part and the side end parts of the rising part of the concrete block are fixed so that the front plate faces the front plate of the first joint member. A second joint member to be disposed, and a joining means capable of fixing the convex portion of the first joint member and the concave portion of the second joint member in close contact with each other. To do.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A joint member for continuously arranging foundation concrete blocks according to the present invention will be described below in more detail with reference to an embodiment shown in the drawings. This joint member 1 for connection
Is a first joint member 2 and a second joint member 3
And a joining means 4 for bringing them into close contact with each other.

As shown in FIGS. 1, 2 and 5, the first joint member 2 has a front plate 21 and a fixed plate 22 formed integrally with the front plate 21. Front plate 21
The shape is not particularly limited, but is formed in, for example, a substantially quadrangular shape, and a substantially hemispherical convex portion 21a is provided at an appropriate position on the surface thereof. The convex portion 21a may not be formed in a substantially hemispherical shape and may be in a substantially conical shape or the like. In addition, this convex portion 2
Adjacent to 1a, for example, on the upper part thereof is a joining means 4 to be described later.
2 for inserting the bolt 41 that constitutes the
1b is formed.

The fixing plate 22 has only to be formed so as to be fixedly connectable to the reinforcing bar 6 arranged in the concrete block 5 (see FIG. 5), and its shape is not particularly limited, but for example, FIGS. 1 and 5 are used. As shown in FIG.
1c, 21d, which is composed of a side plate 22a having a substantially U-shaped flat surface whose end on the open side is located, and a bottom plate 22b closing the bottom side of the gap formed by the side plate 22a and the front plate 21. You can Further, a hole 22c is formed in the side plate portion 22a near the rear surface facing the front plate 21 so as to be fixed to the reinforcing bar 6. The fixed plate 22 having such a configuration is usually integrally formed with the front plate 21.

A lid member is attached after the first and second joint members 2 and 3 are brought into close contact with the upper surface opening 23 formed by the front plate 21 and the fixing plate 22 by the joining means 4 described later. 24 are arranged as needed. After disposing the joining means 4 without disposing the lid member 24, mortar or concrete may be poured from the upper surface opening 23, but such a lid member 24 is provided for convenience of dismantling work or the like.
Is preferably provided.

As shown in FIG. 4, the first joint member 2 having such a structure has an appropriate position of one side end portion 51a of the base 51 of the concrete block 5 and a top end 52a of the rising portion 52. At one side end portion 52b of
The upper surface opening 23 is arranged so as to open on the surface of the base 51 or the top end 52a. The arranging method is not limited, and for example, a mold having protrusions corresponding to the entire shape of the first joint member 2 at a predetermined position such that the first joint member 2 can be arranged in advance. The concrete block 5 is produced by using. Then, as shown in FIG. 5, the bolts 6a and the sleeve 6b are used to fix the reinforcing bars 6 in the notches formed by the projections of the mold via the holes 22c formed in the fixing plate 22. Good. However,
Usually, the concrete block 5 is fixed to the reinforcing bar 6 in advance using the bolt 6a and the sleeve 6b through the hole 22c, and then the concrete is poured into the formwork.
Buried in place.

The second joint member 3 comprises a front plate 31 and a fixing plate 32. As with the first joint member 2, the front plate 31 is formed in, for example, a substantially square shape, and the fixing plate 32 is provided. Is composed of, for example, a substantially U-shaped side plate portion 32a and a bottom plate portion 32b. Similar to the first joint member 2, a hole 32c is provided in the vicinity of the rear surface of the side plate portion 32a substantially facing the front plate 31, and a lid member 34 is provided in the upper surface opening 33 as necessary. is there.

However, the front plate 31 is not provided with a convex portion, but is provided with a concave portion 31a from the surface side. The shape of the concave portion 31a corresponds to the shape of the convex portion 21a provided on the first joint member 2, for example, if the convex portion 21a is substantially hemispherical, it is formed in a substantially hemispherical shape. It Further, the formation position is also the convex portion 21a of the first joint member 2.
Is formed at a location facing the. Furthermore, this front plate 31
A bolt insertion hole 31b for inserting the bolt 41 constituting the joining means 4 is formed in the upper portion of the concave portion 31a.

The second joint member 3 having such a structure is
Base part 51 and rising part top end 52a of one concrete block 5 on which the first joint member 2 is arranged
It is arranged at one side end portions 71a, 72b of the base portion 71 and the rising portion top end 72a of the other adjacent concrete block 7 facing the one side end portions 51a, 52b. The arranging method is the same as that of the first joint member 2. For example, as shown in FIG.
The joint member 3 is connected by the bolt 8a inserted into the hole 32c and the sleeve 8b, and then concrete is poured into a predetermined form to dispose the joint member 3 at the predetermined position.

The joining means 4 makes the first joint member 2 arranged on one of the adjacent concrete blocks 5 for foundation and the second joint member 3 arranged on the other concrete block for foundation 7 closely contact with each other. Any material can be used as long as it can be fixed. In this embodiment, as shown in FIGS. 1 and 5, a bolt 41 inserted into bolt insertion holes 21b and 31b provided in the front plates 21 and 31 of the first and second joint members 2 and 3, and The bolt 41 is composed of a nut 42 screwed from the rear surface side of one of the front plates 21 and 31.

The joint member 1 of this embodiment operates as follows. First, one concrete block for foundation 5
Side end 51a of the base portion 51 and the rising end top 52a of the
At 52b, the first joint member 2 is arranged as described above. In addition, the base plate 71 and the rising edge 72a of the other concrete block 7 for foundation are arranged so that the front plate 31 faces the front plate 21 of the first joint member 2.
Are disposed at the side end portions 71a and 72b of the.

Next, one of the concrete blocks for foundation 5 and the other concrete block for foundation 7 are placed adjacent to each other at a predetermined position on the foundation surface of discarded concrete or the like (see FIG. 4). At this time, the foundation surface is constructed on a substantially horizontal surface, even if it is not a precise horizontal surface. Therefore, the convex portion 21a of the first joint member 2 and the concave portion 31a of the second joint member 3 substantially face each other.

In this state, for example, from the rear surface side of the front plate 21 of the first joint member 2, bolt insertion holes 21b, 3 are formed.
The bolt 41 is inserted into the 1b, and the nut 42 is screwed from the back surface side of the front plate 31 of the second joint member 3 (see FIG. 5).
reference). As the bolt 41 and the nut 42 are tightened, the front plates 21 and 31 approach each other in the direction of the arrow in FIG. The concave portion 21a is fitted into the convex portion 31a as it approaches. The convex portion 21a and the concave portion 31a are formed to have the same shape in cross section, and both are formed on the front plates 21 and 31 at positions facing each other. Therefore, the foundation surface is not precisely a horizontal surface, and the foundation concrete block 5,
Even if there is a slight height difference between the protrusions 7a,
Are corrected as they are fitted in the concave portions 31a, and finally match. In addition, even if there is a lateral shift between the adjacent concrete blocks 5 and 7 for foundation, it is corrected.

The joint member of the foundation concrete block of the present invention is, as shown in the above-mentioned embodiment, the first joint member at one side end portion 51a, 52b of one foundation concrete block 5. 2, the second joint member 3 may be disposed at one side end portion 71a, 72b of the other concrete block for foundation 7 facing the other, and the other of the concrete blocks for foundation 5, 7 Either the first joint member 2 or the second joint member 3 may be arranged at the side end portion. That is,
You may make it arrange | position the 1st joint member 2 in one side edge part of one foundation concrete block, and arrange | position the 2nd joint member 3 in the other side edge part,
You may arrange | position the same kind of joint member at both ends. Care should be taken when placing the concrete blocks 5, 7 on the foundation surface so that the types of joint members arranged at the opposite side ends of the adjacent concrete blocks 5, 7 are different.

Further, the type of the concrete block for foundation to be used is not limited at all, and the base part and the rising part may be molded separately and fixed later. May be an integrated type, etc.

[0023]

According to the joint member of the concrete block for foundation of the present invention, the front plate of each of the first and second joint members disposed so as to face each other in each of the adjacent concrete blocks for foundation. A convex portion or a concave portion that fits into the convex portion is formed on the. for that reason,
Only by bringing the two into close contact with each other by the joining means, the heights of the adjoining concrete blocks for foundation can be made equal to each other, and the lateral displacement can be prevented. Therefore, it is not necessary to perform the position adjustment such as the height adjustment of the adjacent foundation concrete blocks before connecting the adjacent concrete blocks as in the conventional case, and the work amount for the cloth foundation construction is reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a joint member of a concrete block for a foundation according to the present invention.

FIG. 2 is a sectional view showing a first joint member of the embodiment.

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

FIG. 4 is a perspective view schematically showing a state in which the joint members of the embodiment are arranged on the foundation concrete blocks placed adjacent to each other.

FIG. 5 is a plan view showing a state in which the joint members of the embodiment are arranged on foundation concrete blocks placed adjacent to each other.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Joint member 2 1st joint member 21 Front plate 21a Convex part 22 Fixing plate 3 2nd joint member 31 Front plate 31a Recessed part 32 Fixing plate 4 Joining means 41 Bolt 42 Nut 5 Concrete block for foundation 7 Concrete block for foundation

Claims (2)

[Claims] 1. A joint member for continuously arranging a foundation concrete block, which is disposed at a side end portion of a base portion and a rising portion protruding from the base portion at a predetermined height. A front plate on which the convex portion is provided, and a fixing plate which is integrally formed with the front plate and which is connected and fixed to a reinforcing bar arranged inside the base part or the rising part, In one adjacent concrete block for foundation, a first joint member is provided so that the convex portion projects from the side end portions of the base portion and the rising portion, and the convex portion of the first joint member. A front plate having a recessed portion that can be fitted and a fixing plate that is integrally formed with the front plate and that is fixedly connected to a reinforcing bar disposed inside the base or the rising portion. In the other concrete block for foundation, the front plate has the first joint portion. Second joint member disposed at the side end portions of the base portion and the rising portion so as to face the front plate of the second joint member, and the convex portion of the first joint member and the concave portion of the second joint member. And a joining means capable of closely fixing both of them so as to be fitted into the joint. 2. The joint means comprises a bolt inserted into a bolt insertion hole formed in the first joint member and the second joint member, and a nut screwed into the bolt. Joint member for connecting concrete blocks for foundation.