JPH10231694A - Structure of coupling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To joint structures very easily without incurring cost increases. SOLUTION: A coupling hardware 1 is comprises of female coupling hardwares 2 provided in a structure, a male coupling hardware 3 that connects two pieces of the female coupling hardware 2. A pair of hook-form fastening sections 6 provided opposite to each other are formed in the female coupling hardware 2. An engagement section 7 that inserted into an engagement space 8 formed between the fastening sections 6 of the female coupling hardware 2 in both sides of a plate connecting hardware body 11 forming the male coupling hardware 3. By driving tapered wedge members 12 into clearances between bottoms 8a forming the engagement space 8 of the female coupling hardware 2 and the end faces 7a of the engagement sections 7 of the male coupling hardware 3, the engagement sections 7 of the male coupling hardware 3 are pressed against the fastening sections 5 formed in the fastening sections 6 of the female coupling hardware 2, connecting strongly the female coupling hardware 2 and the male coupling hardware 3 by its pressing force.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure used for joining structures such as floor slabs constituting a road surface such as a bridge or segments constituting a tunnel wall to each other.

[0002]

2. Description of the Related Art Conventionally, as a joint structure for joining floor slabs constituting a road surface such as a bridge to each other, for example, a reinforcing bar extending from these structures is interposed between the joined structures. A method is known in which a joint is wrapped, another reinforcing bar is orthogonally arranged on the wrapped portion, and the joint is filled with mortar, integrated and joined.
Further, for example, as a technique for joining the segments constituting the tunnel wall body, there is a method of joining joint plates provided on joint end surfaces of segments to be joined by fastening and fixing the joint plates with bolts and nuts.

[0003]

However, in the case of a joint structure in which mortar is filled by wrapping a reinforcing bar at a joint, a great deal of labor is required for filling the mortar, and a hardening and curing period of the filled mortar is required. And
This leads to a longer construction period. In addition, since a large amount of mortar and a new reinforcing bar are required, there is a problem that the cost is increased. Further, also in the case of the method of joining the joint plates with bolts and nuts, there is a problem that a great deal of labor is required for the fastening work.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a joint structure capable of joining structures very easily without increasing costs.

[0005]

In order to achieve the above object, a joint structure according to claim 1 is a joint structure in which structures are joined to each other by joint fittings, wherein the joint fittings are connected to the structure. And a male fitting for connecting the female fittings to each other, the female fitting having a hook-shaped engaging portion, The mold fitting is provided on both sides of the plate-shaped connecting fitting main body and the connecting fitting main body, and is engaged in an engaging space formed between the locking portions of the female fitting fitting. A wedge material is driven into a gap between a bottom portion forming the engagement space of the female joint fitting and an end face of an engaging portion of the male joint fitting. I have.

A joint structure according to a second aspect of the present invention is a joint structure in which structures are joined to each other by joint fittings, wherein the joint fitting is a female joint fitting provided on one structure and the other structure. The female joint fitting has a hook-shaped engaging portion, and the male joint fitting is connected to a plate-shaped connecting fitting main body and a connecting member. An engagement portion provided at an end of the metal fitting main body and inserted into an engagement space formed between the locking portions of the female joint metal fitting, wherein the engagement of the female joint metal fitting is performed. A wedge material is driven into a gap between a bottom portion forming a space and an end face of an engaging portion of the male joint fitting.

A joint structure according to a third aspect of the present invention is the joint structure according to the first or second aspect, wherein a bottom portion forming the engagement space of the female joint fitting and an engaging portion of the male joint fitting are provided. Is formed in a tapered shape that narrows in a direction in which the wedge material is driven. The joint structure according to the fourth aspect is the first aspect.
3. The joint structure according to claim 3, wherein a wedge material is provided at both ends of a gap between a bottom part of the female joint fitting that forms the engagement space and an end face of the engagement part of the male joint fitting. It is characterized by being driven. A joint structure according to a fifth aspect is the joint structure according to any one of the first to fourth aspects, wherein the engaging portion of the female joint fitting and the engaging portion of the male joint fitting contact each other. It is characterized in that the engaging contact point is a sliding surface curved at the same curvature.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the joint structure according to the present invention will be described below with reference to the drawings. (First Embodiment) In FIGS. 1 to 3, reference numeral 1 denotes a joint fitting. The joint fitting 1 has a female joint fitting 2 fixed to each structure K, and a male joint fitting 3 for connecting the female joint fittings 2 to each other. A connecting rod 4 embedded in the structure K is connected to the rear side of the female joint fitting 2, whereby the female joint fitting 2 is firmly fixed to the structure K. The female joint fitting 2 is provided with a pair of hook-shaped locking portions 6 having locking pieces 5 opposing each other.
The space formed by each other is an engaging space 8 in which the engaging portion 7 of the male fitting 3 engages.

The male fitting 3 for connecting the female fittings 2 is formed in an I-shaped cross section.
The both sides of the plate-shaped connection metal fitting body 11 serve as the engagement portions 7 inserted into the engagement spaces 8 of the female joint metal fitting 2 as described above. The connection fitting main body 11 is formed thinner than the gap between the locking pieces 5 of the locking portion 6 of the female joint fitting 2 so that it can be inserted. 5 are formed thicker than the gaps between them. A wedge material 12 is driven into a gap S between a bottom 8a forming the engagement space 8 of the female joint fitting 2 and an end face 7a of the engaging portion 7 of the male joint fitting 3, respectively. The engaging portion 7 of the male fitting 3 is pressed against the locking piece 5 of the female fitting 2 by the material 12, and the pressing force of the engaging portion 7 of the female fitting 2 causes the female fitting 2.
The male fittings 3 are joined to each other with a high joining force without falling off. The male fitting 3 is
When the engagement portion 7 is inserted into the engagement space 8 of the female joint fitting 2, the clearance is formed to have a small clearance around the engagement portion 7. Are slightly movable left and right with respect to the female joint fitting 2.

When connecting the structures K to each other by the joint fittings 1, first, the male joint fittings 3 are inserted into the engagement spaces 8 of the female joint fittings 2 fixed to the respective structures K. While inserting the engaging portion 7 of the connector. In this state, the wedge material 12 is driven into the gap S between the bottom 8a forming the engagement space 8 of the female joint fitting 2 and the end face 7a of the engaging portion 7 of the male joint fitting 3 from one side. In this way, the gap S of the engagement space 8 of the female joint fitting 2 is expanded by the wedge material 12, and the engagement portion 7
Is pressed against the locking piece 5, and the pressing force ensures that the male joint fitting 3 and the female joint fitting 2 are joined.

As described above, according to the above-mentioned joint structure, the engaging portion of the male joint fitting 3 is inserted into the engaging space 8 surrounded by the hook-shaped engaging portion 6 of the female joint fitting 2. 7 with the wedge material 12 just inserted between the bottom 8a forming the engagement space 8 and the end face 7a of the engagement portion 7,
Very easily, these female joint fittings 2 and male joint fittings 3
And the structures K can be joined together. That is, as compared with the conventional joint structure using mortar, bolts, and nuts, the joining work between the structures can be simplified, thereby greatly shortening the time required for the joining work. In addition, since there is no need to use a reinforcing bar for joining, there is no increase in cost.

Further, as shown in FIG. 4, even if the positions of the structures K are slightly shifted up and down, the gap S between the structure K and the engaging portion 7 in the engaging space 8 of the female joint fitting 2 is still inserted. Lumber 12
, The female joint fitting 2 and the male joint fitting 3 are firmly connected. That is, it is possible to reliably join the structures K whose positions are shifted vertically.

(Second Embodiment) The joint structure shown in FIG.
The end face 7a of the engaging portion 7 of the male joint fitting 3 is a tapered surface, and the bottom surface 8a forming the engaging space 8 and the end face 7a of the engaging portion 7, that is, the tapered surface are formed by the tapered end surface 7a. Is formed in a tapered shape that is gradually narrowed in the driving direction of the wedge material 12. And according to this joint structure, the wedge effect by the driving of the wedge material 12, that is, the pressing force of the engaging portion 7 on the locking piece portion 5 can be further increased.

(Third Embodiment) The joint structure shown in FIG.
Gap S between bottom 8a of engagement space 8 and end face 7a of engagement portion 7
In this manner, the wedge material 12 is driven from both the upper and lower directions. By thus driving the wedge material 12 from both directions, the female joint fitting 2 and the male joint fitting 3 are more firmly and stably joined. Can be done. Further, in the case of the structure in which the wedge material 12 is driven from both directions, a jig having a simple structure in which the wedge material 12 is simply sandwiched from above and below can be used as the jig.

(Fourth Embodiment) Further, the joint structure shown in FIG. 7 is a joint structure in which wedge material 12 is driven into both ends of gap S from both upper and lower directions similarly to FIG. Each of the end faces 7a protrudes toward the upper and lower intermediate portions, so that the end faces 7a are tapered surfaces that are opposite in upper and lower directions. And
The gap S is formed by these tapered end surfaces 7a.
Each of the wedge members 12 has a tapered shape gradually narrowed in a driving direction. In other words, according to this joint structure, the wedge effect by driving the wedge material 12 can be further enhanced to secure a more firm joining state between the female joint fitting 2 and the male joint fitting 3, and these female molds can be secured. The joint fitting 2 and the male joint fitting 3 can be stably joined.

(Fifth Embodiment) FIGS. 8 and 9 show a joint structure in which the female joint fitting 2 and the male joint fitting 3 are relatively swingable. That is,
Side surface 5 of locking piece 5 of female joint fitting 2 on engagement space 8 side
a and the back surface 7b with respect to the end surface 7a of the engaging portion 7 of the male fitting 3 are curved at the same curvature, respectively, as shown in FIG.
In the joint structure shown in FIG. 8, the joint structure 8 is curved outward from the engagement space 8, and in the joint structure shown in FIG.

In each of these joint structures, the female joint fitting 2 and the male joint are formed by sliding the side surface 5a of the curved locking piece 5 and the back surface 7b of the engaging portion 7 in each case. The metal fittings 3 are swung with each other.
That is, even if the structures K are slightly inclined, the joints 1 allow the inclination and allow the structures K to be surely joined. In the above case, the contact surface between the wedge material 12 driven into the gap S and the end face 7a of the engaging portion 7 is also curved, and slides together when the female joint fitting 2 and the male joint fitting 3 swing. It works.

(Sixth Embodiment) In the above-described embodiment, the female joint fittings 2 provided on the respective structures K are connected to each other at the cross section I where the engaging portions 7 are formed at both ends.
The structure is such that the male joint fitting 3 is joined to each other by the male joint fitting 3 of the mold. Needless to say, they may be joined.

FIG. 10 shows a male joint fitting 3 having a T-shaped cross section. The male joint fitting 3 is directly fixed to a connecting rod 4 embedded in a structure K. Metal fitting 1. That is, as described above, the male joint fitting 3
Is fixed directly to the structure K, the shape and structure of the joint between the female joint fitting 2 and the male joint fitting 3 are the same as those of the above-described embodiment (first to fifth embodiments). Thereby, the same operation and effect can be obtained. In addition, in the case of this joint structure, the number of parts can be reduced,
Cost can be reduced.

[0020]

As described above, according to the joint structure of the present invention, the following effects can be obtained. Claim 1
According to the joint structure described above, in a state where the engaging portion of the male joint fitting is fitted into the engaging space surrounded by the engaging portion of the female joint fitting, a bottom portion that forms an engaging space and Just hitting the wedge material into the gap with the end face of the engaging part, very easily,
The female joint fittings provided in each structure are firmly connected to each other by the male joint fitting, and the structures can be joined to each other. That is, as compared with the conventional joint structure using mortar, bolts, and nuts, the joining work between the structures can be simplified, thereby greatly shortening the time required for the joining work. And there is no need to use rebar for joining,
There is no cost increase.

According to the joint structure of the second aspect, the engagement is performed with the engagement portion of the male joint fitting fitted into the engagement space surrounded by the locking portion of the female joint fitting. Just hitting the wedge material into the gap between the bottom part that forms the space and the end face of the engaging part, very easily, firmly connecting the female joint fitting and the male joint fitting provided on each structure The structures can be joined together. That is, as before,
Compared to the joint structure using mortar, bolts and nuts, the joining work between structures can be simplified,
As a result, the work period required for the joining operation can be significantly reduced, and there is no need to use a reinforcing bar for joining, so that there is no increase in cost.

According to the joint structure of the third aspect, the gap between the bottom portion forming the engagement space and the end surface of the engagement portion is formed in a tapered shape narrowing in the wedge material driving direction. , Wedge material can be easily driven, and the wedge effect of the wedge material to be driven,
The engaging force between the engaging portion of the male fitting and the engaging portion of the female fitting can be greatly increased, and the male fitting and the female fitting can be connected with high strength. . According to the joint structure of the fourth aspect, the wedge material is driven from both ends of the gap between the bottom portion forming the engagement space and the end face of the engagement portion. The engagement force with the locking part of the mold fitting can be applied from both directions,
These female fittings and male fittings can be joined stably and with high strength.

According to the joint structure of the present invention, the contact portion where the engaging portion of the male joint fitting and the engaging portion of the female joint fitting engage with each other is curved at the same curvature. Since it is a moving surface, the female joint fitting and the male joint fitting can be swung by sliding the sliding surfaces thereof.
In other words, even if the structures are slightly inclined, it is possible to securely join them while allowing the inclination.

[Brief description of the drawings]

FIG. 1 is a perspective view of a fitting for explaining a first embodiment of a joint structure of the present invention.

FIG. 2 is a sectional view of a joint fitting for explaining a first embodiment of the joint structure of the present invention.

FIG. 3 is a plan view of a joint fitting for explaining a first embodiment of the joint structure of the present invention.

FIG. 4 is a cross-sectional view of the joint fitting illustrating a connection state of the joint fitting according to the first embodiment of the present invention.

FIG. 5 is a cross-sectional view of a fitting for explaining a second embodiment of the fitting of the present invention.

FIG. 6 is a cross-sectional view of a fitting for explaining a third embodiment of the fitting of the present invention.

FIG. 7 is a cross-sectional view of a fitting for explaining a fourth embodiment of the fitting of the present invention.

FIG. 8 is a plan view of a part of a fitting for explaining a fifth embodiment of the fitting of the present invention.

FIG. 9 is a plan view of a part of a fitting for explaining a fifth embodiment of the fitting of the present invention.

FIG. 10 is a perspective view of a fitting for explaining a sixth embodiment of the fitting of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Joint fitting 2 Female joint fitting 3 Male joint fitting 6 Engagement part 7 Engagement part 7a End face 8 Engagement space 8a Bottom part 11 Connection metal part body 12 Wedge material K Structure S Gap

Continuing from the front page (72) Inventor Toshihiko Bessho 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. (72) Inventor Fumio Unosawa 1-1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Corporation In-company (72) Inventor Tosumi Ino 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Corporation

Claims (5)

[Claims] 1. A joint structure for joining structures to each other by joint fittings, wherein said joint fittings are female joint fittings provided on each of said structures, and a male connecting these female joint fittings. The female joint fitting has a hook-shaped engaging portion, and the male joint fitting has a plate-shaped connecting metal body and both sides of the connecting metal body. An engagement portion that is provided and is inserted into an engagement space formed between the locking portions of the female joint fitting; and a bottom portion that forms the engagement space of the female joint fitting. A wedge material is driven into a gap between the male joint fitting and an end face of an engaging portion of the male fitting. 2. A joint structure in which structures are joined to each other by joint fittings, wherein the joint fittings are a female joint fitting provided on one structure and a male joint fitting provided on the other structure. The female fitting has a hook-shaped engaging portion, and the male fitting is provided at a plate-shaped connecting metal body and at an end of the connecting metal body. An engagement portion inserted into an engagement space formed between the locking portions of the female joint fitting, a bottom portion forming the engagement space of the female joint fitting, A wedge material is driven into a gap between the male joint fitting and an end face of the engaging portion. 3. A tapered shape in which a gap between a bottom of the female joint fitting that forms the engagement space and an end face of an engaging portion of the male joint fitting narrows in a direction in which the wedge material is driven. The joint structure according to claim 1 or 2, wherein the joint structure is formed as follows. 4. A wedge material is driven from both ends into a gap between a bottom part of the female joint fitting that forms the engagement space and an end face of an engagement part of the male joint fitting. The joint structure according to any one of claims 1 to 3, wherein: 5. A contact portion where the engaging portion of the female joint fitting and the engaging portion of the male joint fitting come into contact with each other and engage with each other are formed as sliding surfaces curved at the same curvature. The joint structure according to any one of claims 1 to 4, wherein: