JPH05302337A - Concrete block assembling fastening jig - Google Patents

Abstract

PURPOSE:To make it possible to join adjacent concrete blocks with ease when building a structure, such as a basement by joining a plurality of concrete blocks. CONSTITUTION:Cross section L or T-shaped concrete blocks 1 are joined with each other from a bottom plate 1a and a side plate 1b vertically installed to the bottom plate 1a. A fastening jig has joint hardware 5 which is installed, projecting to the top of the bottom plate 1a of the concrete blocks and the side on the upper end of the side plate 1b. The fastening jig has a bolt 8, with each of the joint hardware 5 installed to the adjacent concrete blocks 1, is fastened. The adjacent concrete blocks 1 are joined with each other by fastening the joint hardware 5 with the bolt 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete block assembling jig for joining adjacent concrete blocks.

[0002]

2. Description of the Related Art Due to deterioration of housing conditions in recent years,
Basements have also been installed in ordinary houses. Conventional basements are generally constructed by, for example, cast-in-place concrete.
However, building a basement with cast-in-place concrete
In addition to having multiple complicated steps, it takes a long time to cure the concrete, and as a space for installing a formwork for concrete placement that composes the wall, it is in a larger area than the basement where the ground should be built. Had to drill.

Therefore, the present applicant has manufactured a precast concrete block having a shape in which a box-shaped basement with an open upper surface is divided into a plurality of blocks, and the basement is constructed by connecting these concrete blocks on site. I made a proposal. (For example, Japanese Patent Application No. 2-13
No. 3162 "Concrete basement skeleton structure"
Reference) According to the above proposal, a basement can be easily constructed by connecting and joining a plurality of concrete blocks.

[0004]

By the way, in the above-mentioned basement, when concrete blocks are connected, they are integrated by a PC steel material penetrating these concrete blocks and bridged between the bottom plate portions of the adjacent concrete blocks. In addition, the concrete blocks adjacent to each other are integrated with each other by the connecting hardware that is bolted to the bottom plate. In addition, the connecting hardware is provided with a recess in the bottom plate,
It is designed to be placed inside. Further, if necessary, a recess is formed in the joint end surface of the wall plate portion of the concrete block, the joint metal is embedded in the recess, and the joint metal is fastened with a bolt between adjacent concrete blocks to form a wall plate of the concrete block. The parts are joined together.

However, in such a structure, in order to dispose the connecting metal parts and the joint metal parts, it is necessary to previously form the concave portions in the concrete block, and the mold for manufacturing the concrete block becomes complicated. Further, bolting work and the like must be performed in the recess. Especially, in the case of a metal fitting provided on the wall plate portion, a spanner or the like for fastening the bolt is inserted into the recess to fasten the bolt. However, there was a problem in workability.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a fastening jig for assembling a concrete block which can facilitate the work of joining the concrete blocks. Is.

[0007]

A fastening jig for assembling a concrete block according to the present invention comprises a rectangular bottom plate and a rectangular wall erected on the bottom plate such that the end faces of the bottom plate are flush with each other. A concrete block assembly fastening jig for joining concrete blocks consisting of plates to each other in a state in which the end faces of the bottom plate and the end faces of the side plates are brought into contact with each other so as to be adjacent to each other, projecting on the upper surface of the bottom plate. First provided
For joining the first joining hardware and the second joining hardware of the adjacent concrete blocks, and the second joining hardware provided so as to project from the upper end side surface of the wall plate. And a bolt, the first
And the second joining metal object is provided with an insertion hole for inserting the bolt, and the first joining metal objects and the second joining metal objects provided respectively in the adjoining concrete blocks are respectively The means for solving the above-mentioned problems is that the insertion holes of are provided at positions facing each other.

[0008]

According to the above construction, since the first and second joining hardware are formed so as to project from the bottom surface of the bottom plate of the concrete block or the side surface of the wall plate, it is not necessary to provide the concrete block with a recess or the like. In addition, since the bolts are inserted and fastened between the protruding first and second joining metal parts, the concrete blocks can be joined more easily than when inserting a spanner or the like into the narrow recesses and fastening the bolts. ..

Further, since the second metal joint is provided so as to project from the side surface of the upper end portion of the side plate, when the concrete block is placed in the ground for the above-mentioned basement, it is easily fastened from the ground side. You can work.
Further, if the second metal fitting is provided on the side surface of the wall plate that is the outer surface of the basement, the interior of the basement can be interiorized without considering the second metal fitting protruding from the side surface of the wall board.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 5 are drawings for explaining a fastening jig for assembling a concrete block according to this embodiment. As shown in FIG. 1, the fastening jig is a rectangular bottom plate 1a and the bottom plate. This is for joining concrete blocks 1 and 1 which are composed of an end face of the bottom plate 1a and a rectangular wall plate 1b which is erected upright on the end face 1a so that the end faces are flush with each other.

The concrete block 1 in this embodiment is composed of a plurality of concrete blocks 1 constituting the bottom and the wall of the basement in the space where the ground is excavated.
This is for constructing a basement by joining the concrete blocks 1.
The present invention is applied when joining the ...

As described above, the concrete block 1 is composed of the bottom plate 1a and the side plates 1b and has an L-shaped cross section. Further, the concrete block 1 is formed by placing concrete in a factory or the like in a state where the reinforcing bars 2 ... (illustrated in FIGS. 3 and 4) are laid out in advance. In addition, concrete blocks 1 ... Which are connected in a row are connected to the joint between the bottom plate 1a and the wall plate 1b.
In order to fix it integrally with C steel material (not shown), the P
The through hole 3 for penetrating the C steel material is the bottom plate 1a and the wall plate 1b.
It is formed in parallel with.

These concrete blocks 1 ...
As shown in FIG. 1, by bringing the end faces of the adjacent concrete blocks 1 and 1 into contact with each other and extending the plurality of concrete blocks 1 and 1 in a line, one wall surface and a part of the bottom face of the basement are separated. Can be configured.

Actually, a box-shaped basement constructed by using these concrete blocks 1 and 1 is, for example,
Two sets of the concrete blocks 1 ... Arranged in one row are prepared and arranged to face each other to form two wall surfaces, and the remaining wall surfaces are constituted by plate-shaped concrete blocks (not shown), or arranged in one row. There are also four sets of concrete blocks 1 ... Which are arranged facing each other to construct four wall surfaces, and corner concrete blocks are arranged at four corners of a box-shaped basement. In addition, between the two rows of concrete blocks 1 ...
There is a configuration in which concrete blocks 4 ... Each having a bottom plate 4a and a wall plate 4b and having an inverted T-shaped cross section are arranged in a line as shown in FIG.

As shown in FIGS. 2 to 4, the fastening jig has a metal fitting 5 attached to the upper surface of the bottom plate 1a or the side surface of the upper end of the wall plate 1b in a protruding state, and the metal fitting 5 attached to the bottom plate 1a. Alternatively, it has a first bolt 6 for attaching to the wall plate 1b, and a screw hole that is screwed into the first bolt 6, and has a substantially bottomed cylindrical insert 7 embedded in the bottom plate 1a or the wall plate 1b ( (Illustrated in FIG. 4), and a second bolt 8 and a nut 9 for fastening the metal joints 5, 5 together.

The joint metal 5 has a rectangular plate-shaped installation piece 5a having a through hole (shown in FIG. 4 with the first bolt 6 inserted) 5d through which the first bolt 6 penetrates, and the installation piece 5a. A through hole through which the second bolt 6 passes (see the second bolt 6 in FIG. 4).
A rectangular plate-shaped projecting piece 5b which has 5e and which projects from the upper surface of the bottom plate 1a or the side surface of the side plate 1b at right angles, and connects both side edges of the installation piece 5a and both side edges of the projecting piece 5b. And a reinforcing plate 5c for reinforcement.

The installation piece 5a and the protruding piece 5b are
The L-shaped cross section is integrally formed. The reinforcing plate 5c is arranged at a right angle to the installation piece 5a and the projecting piece 5b, the lower end thereof is fixed to the installation piece 5a, and one side edge thereof is fixed to the projecting piece 5b. It is a plate. In addition, the reinforcing plate 5c includes the installation piece 5a and the protruding piece 5
The corners of the reinforcing plate 5c opposed to the corners formed by b are obliquely cut off.

The position of the metal fitting 5 is determined by the bottom plate 1.
On the upper surface of a, adjacent concrete blocks 1,
It is in the vicinity of the end face to be joined with 1. Also, the side plate 1
The arrangement position of the joint metal 5 in b is also in the vicinity of the end face joined to the adjacent concrete blocks 1 and 1.

In each of the metal joints 5 and 5, the protruding piece 5b is arranged in parallel with the end face, and the installation piece 5a is arranged on the opposite side of the end face. Further, in the adjoining concrete blocks 1 and 1, the joining metal piece 5 arranged on the bottom plate 1a or the wall plate 1b of one concrete block 1 has a through hole 5e whose center position is the bottom plate 1a of the other concrete block 1 or Passing through the center position of the through hole 5e of the metal joint 5 arranged on the wall plate 1b,
Further, they are arranged on a straight line parallel to the bottom plate 1a and the wall plate 1b.

The insert 7 has a substantially cylindrical shape having a screw hole into which the first bolt 6 is screwed, and is embedded in the wall plate 1b or the bottom plate 1a on which the metal joint 5 is arranged. Further, as shown in FIG. 4, the insert 7 has reinforcing bars 2 arranged vertically and horizontally with its front end face exposed.
Between the bottom plate 1a and the wall plate 1b.

When the concrete block 1 is manufactured in a factory or the like, the insert 7 is fixed and embedded in the formwork before the concrete is placed in the formwork. Also, the second bolt 8 is
This is a well-known one in which a male screw is formed at one end, and the length thereof is longer than the distance between the projecting pieces 5b of the joint metal pieces 5 provided on the adjacent concrete blocks 1 and 1.

In FIG. 4, reference numeral 10 indicates a packing, and reference numeral 11 indicates a backup material and a caulking material. Next, at the site, in order to assemble the basement, root cutting work for the basement should be done, after digging a hole of a predetermined size, after the cracked ground work process and the casting process of discarded concrete , The base part is constructed, and at this time, the steel pipes that serve as the standard for the installation level of the concrete blocks 1 and 1 are embedded. Next, the concrete blocks 1 and 1 are hung from the truck by using a crane or the like, and these are combined and joined one after another.

At this time, each concrete block 1,
Place 1 adjacent to each other. Further, the concrete blocks 1 and 1 adjacent to each other are arranged in a state where the end faces of the wall plate 1a and the bottom plate 1b are in contact with each other. Then, in the adjoining concrete blocks 1 and 1, the protruding piece 5b of one of the joint metal pieces 5 provided on the wall plate 1a or the bottom plate 1b protrudes from the through hole 5e of the protrusion piece 5b of the other joint metal piece 5 to project the other joint metal piece 5. The second bolt 8 is inserted into the through hole 5e of the piece 5b.

Then, the nuts 9 are screwed into the second bolts 8 from the side of the other metal joint 5 to fasten the metal joints 5 and 5 to each other, thereby joining the concrete blocks. At this time, the joining hardware 5, 5 provided on the bottom plate 1a
The fastening work between them is performed on the bottom plate 1a. And
The metal fitting 5 provided on the wall plate 1b is to be provided on a portion where the metal fitting 5 is on the outer surface side of the basement at the upper end portion of the wall board 1b, and the wall surface of the excavated hole and the outer surface of the wall board 1b are separated. In the gap, the fastening work can be performed from the ground side.

Further, the concrete blocks 1 and 1 joined to each other are further integrated by the PC steel material for each row. Then, the metal joint 5 provided on the wall plate 1b
Will be buried in the ground as it is, and the metal joint 5 provided on the bottom plate 1a will be below the floor of the basement when forming the floor of the basement.

In the concrete block 4 having an inverted T-shaped cross section shown in FIG. 5, the joint metal 5 is arranged on the wall plate 4b at the same position as that of the concrete block 1 having an L-shaped cross section. In the bottom plate 4a, the joint metal 5 is joined to the bottom plate 1a of the concrete block 1 having an L-shaped cross section with respect to the extending portion of the bottom plate 4a configured to extend on both sides of the wall plate 4b. It is arranged at the same position as the hardware 5. Further, the metal joint 5 protruding from the wall plate 4b is hidden behind the inner wall surface or the ceiling surface when the interior of the basement is interior-finished.

As described above, according to the fastening jig of this embodiment, since the joining metal piece 5 is projected, the fastening work can be easily performed. In particular, the fastening work between the wall plates 1b and 1b can be performed. Can easily work from the ground side. In addition, as described above, the wall plate 1b or the bottom plate 1a
The metal fitting 5 provided on the base is buried in the ground and hidden on the floor surface, wall surface or inner wall surface when the interior of the basement is interior, and does not affect the interior of the basement.

[0028]

As described in detail above, according to the fastening jig for assembling a concrete block of the present invention, the first and second joining metal members are formed so as to project from the bottom plate or the wall plate. Fastening with bolts can be easily performed. Further, in particular, since the second joint metal member formed on the wall plate is formed on the side surface of the upper end portion of the wall plate, the concrete block is used for forming the basement,
When the concrete block is installed in the ground, the second joining metal parts of the side plates adjacent to each other can be fastened with bolts from the ground. That is, it is possible to easily perform the work of fastening the metal fitting provided on the side plate.

[Brief description of drawings]

FIG. 1 is a perspective view showing a fastening jig for assembling a concrete block according to the above embodiment.

FIG. 2 is a perspective view showing the fastening jig for assembling the concrete block.

FIG. 3 is a plan view showing the fastening jig for assembling the concrete block.

FIG. 4 is a cross-sectional view showing the fastening jig for assembling the concrete block.

FIG. 5 is a perspective view showing a fastening jig for assembling the concrete block.

[Explanation of symbols]

 1 Concrete block 1a Bottom plate of concrete block 1b Side plate of concrete block 4 Concrete block 4a Bottom plate of concrete block 4b Side plate of concrete block 5 Joining hardware 8 Second bolt

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuo Sahara 6-7 Uehonmachi, Sakata City, Yamagata Prefecture Maeda Pipeline Co., Ltd.

Claims (1)

[Claims] 1. Concrete blocks composed of a rectangular bottom plate and rectangular wall plates standing upright on the bottom plate with the end faces of the bottom plate flush with each other, the end faces of the bottom plate and side plates. Is a fastening jig for assembling concrete blocks for abutting the end faces of each other to join them in a state of being adjacent to each other, the first joining metal member projectingly provided on the upper surface of the bottom plate and the upper end side surface of the wall plate And a bolt for fastening the first joining metal pieces and the second joining metal pieces of the adjacent concrete blocks to each other. And the second joint metal fitting is provided with an insertion hole for inserting the bolt, and the first joint metal fittings and the second joint metal fittings respectively provided on the adjacent concrete blocks are the same. This Fastening jig be concrete block assembly and wherein the insertion hole is provided at a position facing each other.