JPH08209812A - Connecting method and connecting structure for member - Google Patents

Abstract

PURPOSE: To simplify the connecting work and firmly connect members together so that the connection section is not exposed on the surface. CONSTITUTION: A recess 13 is formed on the connection face 11 of one member A, a bag body 22 made of a flexible raw material is fitted to the connection face 21 of the other member B, the connection faces of the members A, B are brought into contact with each other while the bag body 22 is inserted into the recess 13, then a filler is pressed into the bag body 22 to expand the bag body 22 along the inner face shape of the recess 13. Tensile force in the connecting direction is generated on the bag body 22 expanded by the filler, and the members A, B are connected together by the tensile force in the fastened state. Irregularities or steps may be provided on the connection faces 11, 21 to provide the resistance force against the shearing force.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joining method and joining structure of members suitably used for joining various other members including a skeleton such as a concrete block used for a building. is there.

[0002]

2. Description of the Related Art In recent years, in the construction industry, commercialization of various members in factories has been promoted in order to improve the efficiency of construction on site. By the way, when joining members manufactured in the factory on-site, it is not possible to expect adhesives to join members that stress acts on the joining part,
Usually, a joining method by a physical method using metal fittings is adopted.

[0003]

However, although the joining means by the physical method as described in the prior art has a large joining strength, the joining portion is exposed on the surface of the member, which is not preferable in terms of appearance. There is. Further, since the metal fittings are individually fitted or screwed to join the members to each other, there is a problem that the joining work is troublesome and a considerable amount of manpower is required.

The present invention has been made in view of the above background, and an object of the present invention is to simplify the joining work and to firmly join the members with each other without exposing the joining portion to the surface. An object of the present invention is to provide a joining method and a joining structure of physical members that can be joined.

[0005]

In order to achieve the above object, the first joining method according to the present invention is to form a recess in the joining surface of one member and to flex the joining surface of the other member. After integrally attaching the bag body made of a flexible material, and contacting the joint surfaces of the respective members in a state where the bag body is inserted into the recess,
Both members are joined by press-fitting a filler into the bag and expanding the bag along the shape of the inner surface of the recess.

In the second joining method, a recess is formed in the joining surface of one member, and a bag made of a flexible material is integrally attached to the joining surface of the other member in a housed state. After bringing the joint surfaces of the respective members into contact with each other with the bag body aligned with the entrance of the recess, a filling material is pressed into the bag body so that the bag body conforms to the inner surface shape of the recess. Both members are joined by being expanded together.

The joining structure of the present invention formed by each of the above-mentioned joining methods is a joining structure in which one member and the other member are joined by their abutting joining surfaces, and the joining surface of one member is A recess is formed, and a bag body made of a flexible material inserted into the recess is attached to the joint surface of the other member, and the bag body expands along the inner surface shape of the recess. In this state, both members are joined by the connecting portion formed by injecting the filler into the bag body.

Further, the joint surfaces of the two members may be provided with irregularities that fit into each other. Further, the joint surfaces of both members may be provided on both sides of the step, and further, the joint surfaces on both sides of the step may be provided with concaves and convexes that fit with each other. Also, one member and the other member,
The shape may have a circumscribed surface on at least one side of the joint surface having the connecting portion.

[0009]

In the joining method of the present invention having the above-described structure, the two members are aligned and brought into contact with each other at their joining surfaces, and then the filling material is press-fitted into the bag attached to the other member. When the bag body is inflated in the recess of one member, a tension force in the joining direction is generated in the bag body, and the members are joined in a state in which the members are fastened by the tension force.

The joint structure thus obtained is such that the recess, which is the connecting portion, and the bag body are embedded in both members, and furthermore, both members are joined in a tightened state by the tension force of the bag body. Become. Further, the unevenness and the step provided on the joint surface of both members serve to prevent the displacement of both members. Also,
In the form in which the circumscribing surface is provided on at least one side of the joint surface, this circumscribing surface serves to prevent the displacement of both members.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 4 show an embodiment of the present invention. FIG. 1 is a partially cutaway perspective view showing one member and the other member in a state before joining, and FIG. 2 shows the other member. A sectional view, FIG. 3 is a sectional view showing a state of alignment, and FIG. 4 is a sectional view showing a joined state.

The member A on the one hand and the member B on the other hand are made of concrete blocks. A slit-shaped bag mouth 12 and a cylindrical recess 13 connected to this are formed on the joint surface 11 of one member A. A band-shaped bag body 22 is attached to the other member B so as to stand upright from the joint surface 21, and the bag body 22 has an anchor portion 23 embedded therein. The length of the bag body 22 is substantially the same as the length of the bag mouth 12 of the member A. Then, the other member B is provided with a plurality of injection ports 24, and these injection ports 24 are formed by the ends of a pipe-shaped injection path (not shown) connected to the bag body 22. This inlet 24
Although one may be provided, if a plurality is provided, the remaining injection port 24 can be used as a spare, or can be used to confirm the filling state of the filler. In addition, in the present embodiment, the tip of the bag 22 is bent in order to facilitate insertion into the bag mouth 12 of the member A. This bent part is 2
It may be triple, triple or more. As the material of the bag body 22, metal, synthetic resin, glass fiber, carbon fiber or the like can be used. In the case of a material that cannot maintain the shape of the bag body 22, it is solidified with glue or the like so as to stand upright.

The member A is formed by embedding a hollow member in the shape of the bag mouth 12 and the recess 13 into a form. Concrete is poured into the form of the member A, and after hardening, the hollow member is pulled out or folded and removed. It is made. Further, the member B is a bag body 22 in which the anchor portion 23 and the injection path are integrally formed.
It is made by pouring concrete into the mold so that it is embedded.

In order to join the members A and B, as shown in FIG. 3, the bag body 22 of the member B is inserted into the recess 13 through the bag mouth 12 of the member A, and the members are aligned with each other. A,
The joint surfaces 11 and 21 of B are brought into contact with each other. After that, a curable filler C such as mortar is press-fitted from one inlet 24 of the member B by a filling machine. The filler C flows into the bag body 22 through the injection path. Then, as shown in FIG. 4, the filler C is press-fitted until the bag body 22 has a shape along the inner surface of the recess 13. Here, the check valve is provided in the injection port 24 or the injection path, or a plug is provided after the injection to prevent the backflow of the filler C. After that, when the filler C is hardened after a lapse of a predetermined time, a tension force in the joining direction is generated in the bag body 22, and the members A and B are joined together in a tightened state by the tension force. Here, the bag 22 is sized so that it can be in close contact with the recess 13 when inflated. When the length of the bag body 22 is shorter than the length of the recess 13, the end of the recess 13 becomes hollow, but the joining force between the members A and B does not become weak.

In the above-described embodiment, when a strong tensile force is generated on the members A and B, the periphery of the recess 13 of the member A may be destroyed. Therefore, if such a situation is expected, a reinforcing frame is provided on the inner surface of the recess 13.
Such a reinforcing frame can be formed by embedding a frame body made of metal or hard resin when the member A is manufactured.

In the embodiment shown in FIGS. 5 and 6, the recesses 13 with the bag mouths 12 are provided in two rows on the joint surface 11 of one member A, and the two ridges 14 are provided between them. It is provided. On the joint surface 21 of the other member B, the recesses 13 are formed.
The bag bodies 22 to be inserted into each of the ridges 14 are attached in two rows, and two grooves 25 that are fitted into the ridges 14 are provided between them. That is, the joint surface 11,
The reference numeral 21 has a configuration in which concaves and convexes are fitted to each other. The joining state of the members A and B is as shown in FIG. 6, and in this structure, the members A and B are joined together by the tension force of the bag body 22 in which the filler C is injected, and the ridges 14
By engaging the groove 25 with each other, the shearing force acting in the two directions of the joint surfaces 11 and 21 is resisted.

In the embodiment shown in FIGS. 7 and 8, the step 1 that meshes with the joint surfaces 11 and 21 of the members A and B is used.
5, 26 are provided. The one member A is provided with the recesses 13 having the bag openings 12 on both sides of the step 15, and the other member B is provided with the bag bodies 22 inserted into the recesses 13 on both sides of the step 26, respectively. It is attached. The joining state of the members A and B is as shown in FIG. 8, and in this structure, the members A and B are caused by the tension of the bag body 22 into which the filler C is injected.
The Bs are coupled to each other, and the steps 15 and 26 mesh with each other to resist the shearing force acting in one direction of the joint surfaces 11 and 21. Incidentally, in order to resist the shearing force in two directions, it is advisable to provide the joint surfaces 11 and 21 with the unevenness formed by the protrusions and grooves similar to those shown in FIG.

In the embodiment shown in FIG. 9, FIG. 10 and FIG. 11, recesses 13 with bag mouths 12 are provided in two rows on the joint surface 11 of one member A, and a plurality of protrusions 16 are provided between them. Is provided. On the joint surface 21 of the other member B, the bag bodies 22 to be inserted into the respective recesses 13 are attached in two rows, and a plurality of holes 27 which fit with the respective projections 16 are provided between them. There is. That is, the joint surfaces 11 and 21 are provided with irregularities that fit into each other. The joining state of the members A and B is as shown in FIG. 11, and in this structure, the bag body 2 in which the filler C is injected.
The members A and B are coupled to each other by the tension force of 2, and the projection 16 and the hole 27 are engaged with each other to resist the shearing force acting in all directions of the joint surfaces 11 and 21.

The joined state shown in FIG. 12 is shown in FIGS.
This is a modified example of No. 1 and is designed so that a gap is created between the protrusion 16 and the hole 27 when the members A and B are put together. And
After joining the members A and B, a filling material C ′ having strength and adhesiveness is filled into the gap from the injection port 28. It should be noted that both ends of the members A and B are brought into contact with each other without a gap so that the filler C ′ does not flow out.
If necessary, an adhesive tape T or the like may be attached. In this embodiment, the members A and B are securely joined together without displacement.

In the embodiment shown in FIGS. 13 and 14,
A reinforcing frame 31 having a concave-convex side surface is embedded in the member A. Then, the anchor portion 32 is provided at the base of the reinforcing frame 31.
And a reinforcing flange portion 33 is provided at the bag mouth portion 12. Further, the anchor portion 23 of the bag body 22 of the member B is also formed with irregularities. The members A and B
If the reinforcement is to be embedded in the anchor part 3
It is preferable to fix 2, 23 to this reinforcing bar by welding or the like. When the members A and B are aligned and the filler C is press-fitted into the bag body 22, the bag body 22 is deformed along the shape of the reinforcing frame 31 as shown in FIG. 14, and the filler C is injected. It Then, when the filler C is cured, the members A and B are
Since the tensile force generated in the above is received by the frictional force between the reinforcing frame 31 and the bag body 22, the members A and B maintain the firmly joined state unless the filler C is destroyed. Further, since the reinforcing frame 31 is provided, the periphery of the recess 13 of the member A is not destroyed by the tensile force. As the bag body 22, one having irregularities corresponding to the irregularities of the reinforcing frame 31 may be used, or one having no irregularities may be used. In the latter case, when the filling material C is injected, some creases are formed in the bag body 22, but since the filling material C is hardened and fixed,
The bonding strength does not decrease.

In each of the above embodiments, the recess 13 of the member A is provided long over the joint surface 11, and the bag 2 of the member B is formed.
2 are provided in a band shape so as to fit into the recess 13, but as another form, a plurality of the recesses 13 of the member A are independently arranged and the bag body 22 of the member B is rod-shaped. Recess 1
Plural pieces may be arranged side by side so as to correspond to each of No. 3 and No. 3. In any case, the bag body 22 of the member B does not get in the way if it is folded or rolled in an appropriate shape, and when the filler C is injected, the recess 1 is formed.
3 can be expanded along the shape.

In the embodiment shown in FIG. 15, a plurality of independent reinforcing frames 31 are embedded in one member A, and the other bag B is provided with an independent bag body 22 corresponding to each of the reinforcing frames 31. It is attached. An injection path 29 is connected to each of the bags 22 and the tip of each of the injection paths 29 is opened as an injection port 24. Therefore, the filling material C is press-fitted from each of the injection ports 24, and is filled in each of the bags 22 through the respective injection paths 29. In the embodiment shown in FIG. 16, one injection channel 29 is used.
Are arranged so as to connect the respective bag bodies 22,
When the filling material C is press-fitted from the one filling port 24, the filling material C is filled in each bag 22 through the filling passage 29. Needless to say, the backflow of the filler C is prevented by providing a check valve at the inlet 24 or the inlet 29, or by plugging the filler C after the inlet.

In the embodiment shown in FIGS. 17 and 18,
The joining member is used in which the bag body 22 is folded and accommodated in the groove-shaped capsule 41 in advance. The capsule 41 has an anchor portion 41b protruding behind the capsule body 41a, and a lid portion 41c is provided on both sides of the opening as required.
Is provided. The bag body 22 and the capsule 41 can be integrally formed of the same material. When the two materials are different, the bag body 22 and the capsule 41, which are separately prepared, are attached by an appropriate means. And capsule 4
When the material of No. 1 is hard, the capsule body 4
A notch 42 is provided from the inside at the boundary between 1a and the lid portion 41c. When manufacturing the member B, the capsule 41 is attached to the joint surface 21 side of the member B by pouring concrete into the mold so as to embed the capsule 41 containing the bag body 22 therein. In this way, the bag 22 is replaced with the capsule 4
When the member B is stored in the unit 1, there is an advantage that it does not get in the way when the member B is handled. Further, when the capsule 41 has the lid portion 41c, the storage state is improved depending on the material of the bag body 22. After the members A and B are aligned with each other, when the filler C is press-fitted into the bag body 22 in the same manner as described above, the expansion force of the bag body 22 causes the lid portion 41c of the capsule 41 to fold and spread at the notch 42. The bag body 22 extends from the capsule 41 into the recess 13 of the member A, and expands along the shape of the inner surface of the recess 13. Then, when the filler C is cured, the members A and B are joined.

In the joining member shown in FIG. 19, the bag body 22 and the capsule 41, which are separately prepared, are integrated.
As shown in FIG. 20, the bag body 22 has core bars 43 at both ends.
Is rolled in, and the folded-back portion of the bag body 22 is fused or sewn to be attached. The capsule 41 is the capsule body 4
1a is the same as the previous one in that an anchor portion 41b is projectingly provided behind, but a slit 41d is provided at the tip of the capsule main body 41a, and this slit 41d has a jagged inner surface if necessary. Along with that, the bottom part has an enlarged cylindrical shape. Then, both ends of the bag body 22 are inserted into the slits 41d of the capsule body 41a and fixed as shown. In this case, it may be fixed by heat fusion depending on the material, or may be fixed by bolts or the like as shown by the dotted line. After the bag body 22 is wrapped around the capsule 41 in this way, the bag body 22 is folded and stored in the capsule body 41a, and temporarily fixed at several places with the adhesive tape T so as not to protrude. Similarly to the above, when the members A and B are aligned and the filling material is pressed into the bag body 22, the tape T is peeled off due to the expansion force of the bag body 22, and the bag body 22 is ejected from the capsule 41 and the member is removed. Extends into the A recess. In this case, since the tape T is thin, it does not affect the joining.

In the embodiment shown in FIG. 21, a storage groove 44 and an embedding groove 45 are formed in the joint surface 21 of the member B, and the anchor portion 23 of the bag 22 is embedded and fixed in the groove 45. After that, the bag body 22 is rolled up and stored in the storage groove 44, and the bag body 22 is temporarily fixed at several places by the tape T so as not to pop out. Similarly to the above, when the members A and B are aligned and the filling material is pressed into the bag body 22, the tape T is peeled off by the expansion force of the bag body 22 and the bag body 22 comes out from the storage groove 44. It extends into the recess of the member A. The member B provided with the bag body 22 as shown in this embodiment can also be manufactured as follows. That is, a protection member is attached so as to surround the bag body 22, and when the member B is manufactured, the bag body 22 surrounded by the protection member is embedded together with the anchor portion 23, and concrete is poured into the formwork. The protective member is pulled out after the concrete is hardened.

In the embodiment shown in FIG. 22, a storage groove 46 is formed in the joint surface 21 of the member B, and an anchor portion 47 having a trapezoidal cross section is formed in the bottom portion of the storage groove 46, and the bottom portion of the bag body 22 is divided by a partition 48. Is inserted into the anchor portion 47, and the bottom portion of the bag body 22 is filled with the filler C ′ and fixed to the anchor portion 47 at the factory or on site. Then, the bag body 22 is folded and stored in the storage groove 46, and is temporarily fixed by the tape T at several places so that the bag body 22 does not pop out. Partition 4
8 may be made integrally with the bag body 22 or may be attached to the bag body 22 as a separate member.

In the embodiment shown in FIG. 23, a slit 49 is formed on the joint surface 21 of the member B and a cylindrical anchor portion 50 is formed on the bottom thereof. On the other hand, a bag body 22 is prepared in which a pipe 51 having a rhombic cross section serving as an injection path is sandwiched in the center and bonded. Then, at the factory or on-site, one side (the right side in the figure) of the bag body 22 is inserted into the anchor portion 50 through the slit 49, and the filler C ′ is filled into one side of the bag body from another injection path to anchor the anchor portion 50. Fixed to. At the time of joining, the bag body 22 of the member B is inserted into the recess of the member A, and then the filling material is press-fitted into the bag body 22 through the pipe 51 from the injection port.

In the above embodiments, a hardening type such as mortar was used as the filler C to form a semi-permanent joint structure. However, depending on the purpose of joining, the filler may be filled with air or the like. It is also possible to use liquids such as gas or water. When gas or liquid is used as the filling material, the joining can be removed.

The joining method of the present invention can be used for joining various members.

An example in which the present invention is applied to the joining of box culverts is shown in FIG. In order to clarify the structure of the joint surface, perspective views seen from different directions are shown in (a) and (b), respectively. Each body 61 is provided with a recess 13 circumferentially along the right joint surface 11, and a bag 22 is circumferentially attached along the left joint surface 21. Two inlets 24 are provided on the left end side of each side,
One is for injection of the filler and the other is for observation of the injected filler. Since the bag 22 is connected, the filling port 2
4 is not necessarily provided on 4 sides. To join the skeletons 61 to each other, the joint surfaces 11 and 21 are aligned while paying attention to the alignment of the recess 13 and the bag body 22, and then mortar is press-fitted from the injection port 24. When the skeleton 61 is a lightweight one, the skeleton 61 may move and separate due to the injection pressure. Therefore, bolt holes are provided in the skeleton 61, and the mortar is hardened by joining the mortars with the plates connected to each other. Try to remove the plate later.

25 to 28 show examples in which the present invention is applied to assembling a box culvert from a plate member into a tubular shape. As shown in these drawings, if each component is assembled on site, it becomes easy to carry and a large number of members can be carried at once.

In the embodiment shown in FIG. 25, the concavities and convexities a which are fitted to each other on the joint surface of the plate-shaped horizontal member 61 and the vertical member 62.
And the recess and the bag body as described above are provided to form the connecting portion J. In this joining mode, the horizontal member 61 and the vertical member 62 are connected by the tension force of the connecting portion J, and the unevenness a prevents the vertical member 62 from being displaced in the left-right direction.

In the embodiment shown in FIG. 26, the transverse member 61
From both ends of the ridge 61 toward the inner side by the thickness of the vertical member 62
a is provided, and the circumscribing surface b formed by the ridge 61a prevents the vertical member 62 from moving inward. If the temporary material 63 is attached to the outside of the joint surface with the bolt 64 or the like, the vertical member 62 can be prevented from being displaced to the outside.

In the embodiment shown in FIG. 27, the upper member 65
And a step c that meshes with each other is provided on the joint surface of the vertical member 66,
A connecting portion J is formed on each side of the step c. The lower member 67 has a groove 67a on both sides thereof, which corresponds to the thickness of the vertical member 66.
The vertical member 66 is fitted into the groove 67a, and the connecting portions J are provided in two rows on the contact surface. In this joint form,
The step c prevents the lateral member 65 from being displaced downward, and the circumscribing surfaces b are present on both sides of the joint surface of the vertical member 66, thereby preventing the vertical member 66 from being displaced in the left-right direction. FIG. 28 is a modification of FIG. 27, in which a protrusion 66a is provided on the lower side from the upper end of the vertical member 66 by the thickness of the upper member 65, and the lower surface of the upper member 65 is formed by the circumscribing surface b formed by the protrusion 66a. It prevents the deviation.

FIG. 29 shows an example in which the present invention is applied to the joining of the plate members constituting the rectangular water tank. Plate-like plate members 71, 72, 73 are assembled in a box shape, and the above-mentioned joining surface is formed on the joining surface. Such a recess and a bag body are respectively provided to form a connecting portion J. Since the application is a water tank, a recess and a bag that are continuous along the side are used, and the connecting portions J are provided in two rows. By providing the connecting portions J in two rows in this manner, the watertightness is increased, and since the connecting portions J function as a reinforcing member, a very strong water tank can be provided. It should be noted that the joint surface may be provided with irregularities that fit with each other or steps that mesh with each other.

FIG. 30 shows an example in which the present invention is applied to the joining of a plurality of members forming a circular water tank. A curved block body 75 is arranged in a cylindrical shape on a disc-shaped bottom plate 74, a curved block body 76 is piled up on it, and these are connected to each other at a connecting portion J to form a water tank. . A step c is provided on each joint surface, and the step c
The connecting portions J are formed on both sides of each. In this joining mode, the respective members are firmly joined to each other to ensure watertightness, and the block body 75 of the first stage has the step c.
Prevents the bottom plate 74 from moving outward with respect to the second plate.
The block body 76 of the first stage is also prevented from moving outward with respect to the block body 75 of the first stage due to the step c, so that it can sufficiently withstand a large water pressure. In the case of manufacturing a closed circular water tank, a disc-shaped lid plate similar to the bottom plate 74 may be placed on the block body 76, and may be connected by the connecting portion J in the same manner as the bottom plate 74. In the case of the joining example shown in FIGS. 29 and 30, the connecting portion J may be covered with an appropriate cover so as not to be exposed at the end surface.

An example in which the present invention is applied to the joining of the skeletons constituting the retaining wall is shown in FIGS.

In the embodiment shown in FIG. 31, the base member 7
7 is provided with one ridge 77a, and the wall member 78 is provided with this ridge 7a.
One groove 78a that fits with 7a is provided, and the connecting portions J composed of the recess and the bag as described above are formed in two rows. In this joined state, the foundation member 77 and the wall member 78 are connected by the tension of the connecting portion J, and the projections 77a, which are uneven, and the grooves 78a are engaged with each other. Can withstand F.

In the embodiment shown in FIG. 32, the base member 7
A plurality of irregularities a are provided on the joint surface between the wall member 78 and the wall member 78.
In this joined state, the two members are joined by the tension force of the joining portion J, and the unevenness a of the joining surface prevents the wall member 78 from shifting to the left and right, so that the wall member 78 does not shift to the outside and does not move to the earth pressure. Can withstand F.

In the embodiment shown in FIG. 33, the base member 7
Steps c that mesh with each other are provided on the joint surface between the wall 7 and the wall member 78, and connecting portions J are formed on both sides of the steps c. In this joined state, the tension of the connecting portion J connects the base member 77 and the wall member 78, and the step c prevents the wall member 78 from moving to the outside.

The joining method of the present invention can also be used to join members such as beams, columns and walls.

FIG. 34 shows two long structural members 81, 82
An example in which they are joined in a letter shape is shown. Such a joint structure is used for a T-shaped beam, for example. Then, when the load acting on the beam is large, the joining is performed at the continuous connecting portion J, and when the load acting on the beam is small, joining is performed at the independent connecting portion J.

FIG. 35 shows an example in which two long structural members 83 and 84 are joined together in a butted state. Such joining structures are used, for example, for joining walls. In the figure, the joint surface is provided with concavities and convexities and the connecting portions J are provided at three locations, but it may be provided at one location in the center or at two locations on both sides as required. Alternatively, it may be provided at four or more places depending on the wall thickness.

FIG. 36 shows an example of a column-beam joint structure.
A tenon joint 85 made of metal, concrete, resin, ceramics or the like is embedded in the foundation 86. The groove of the pillar 87 on the first floor is fitted into this tenon joint 85, and grout G is injected from the grout hole 87a to form the foundation 86. The column 87 is fixed to the. Further, the joint portions J are provided on the joint surfaces on both sides of the tenon joint 85.
Is provided to ensure the joining of both. In addition, a tenon joint 87b is processed at the upper end of the pillar 87 on the first floor, and the groove of the pillar 88 on the second floor is fitted and fixed to this tenon joint 87b, and the joint surfaces on both sides of the tenon joint 87b are fixed. A connecting portion J is provided. Further, steps c are formed by projections 87c on both sides of the upper part of the pillar 87 on the first floor, beams 89 are fitted to the steps c, and connecting portions J are provided on both sides of the steps c.

As described above, the joining examples of the members constituting the various structures are shown in FIGS. 24 to 36, but the present invention is not limited to the illustrated structures, and this joining example can be applied to other structures. Can also be applied. Further, the joining structure shown in one embodiment can be applied to other embodiments. For example,
The external contact surface structure used for the vertical member 66 and the lower member 67 in FIG. 27 is applied to the joint portion of the foundation 86 and the pillar 87 shown in FIG.

The joining method of the present invention can also be applied to joining already made stone materials, concrete blocks, bricks, ceramics, metals, synthetic resins, other building materials and the like. Furthermore, it can be used for joints such as water pipes, sewer pipes, and gas pipes. An example of a joining structure suitable for this application is shown in FIG.
7, shown in FIG. The joining structure shown in FIGS. 22 and 23 can also be applied to the above joining.

In the embodiment shown in FIG. 37, the members A and B are made of stone. As the joining member 90 for joining the two, one in which the anchor portion 92 such as a bolt is attached to one of the attachment portions 91 and the bag body 22 is attached to the other is used. In this embodiment, the mounting portion 91 is in the form of a capsule, and the lid portion 91a similar to those in FIGS. 17 and 18 is provided and the bag body 22 is housed therein. Note that the attachment portion 91 and the bag body 22 may be separately attached by appropriate means, or may be integrally formed of the same material. When integrally formed, hard rubber or synthetic resin may be used as the material.

First, a hole 93 is drilled in the member B, and the mounting portion 91 of the joining member 90 is fitted or screwed into the entrance of the hole 93, and then the filler C ′ is press-fitted through the injection path 94. , And is fixed to fix the anchor portion 92. A hole 95 is formed in the member A at the factory or on site. Then, the member B to which the joining member 90 is attached is changed to the member A.
Then, the filler C is press-fitted from the injection path 96 after the installation. By press-fitting the filling material C, the lid portion 91a of the mounting portion 91 expands and the bag body 22 is attached to the mounting portion 91.
And extends toward the inside of the hole 95 and expands along the inner surface shape of the hole 95. Then, when the filler C is cured, the members A and B are joined.

The embodiment shown in FIG. 38 is the same as the embodiment of FIG. 37 except that the method of fixing the joining member 90 to the member B is different. An anchor portion 92 is provided on the joining member 90.
Instead of, a bag body 97 is attached. Then, the filler C ′ is press-fitted into the bag body 97 from the injection path 94 to fix the joining member to the member B.

The joint structure shown in FIGS. 37 and 38 exerts a great force in preventing a fall by applying the joint structure to upper and lower members when assembling a tombstone or a monument, for example.

[0052]

As described above, according to the method for joining members of the present invention, after the two members are aligned and brought into contact with each other at their joining surfaces, they are attached to the other member. The members can be firmly joined to each other only by press-fitting the filling material and expanding the bag body in the recess of the one member, so that the joining work can be easily performed.

Further, in the joint structure of the present invention, the bag body attached to the joint surface of the other member is inserted into the recess formed in the joint surface of the one member, and the bag body is filled with the filling material. Since it is expanded along the shape of the recess, the members are joined together with the connecting part not exposed on the surface, and a tension force in the joining direction is generated in the bag body expanded by the filling material. Therefore, the members are firmly joined together in a tightened state.

By providing the joint surfaces of the two members with unevenness and steps that fit with each other, the members can be firmly joined together without any displacement.

Further, even when one member and the other member are shaped so as to have circumscribing surfaces on both sides of the joint surface, both members do not displace on the circumscribing surface, and moreover, firmly at the connecting portion. It will be joined with.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention and showing a main part of one member and the other member in a state before joining.

FIG. 2 is a cross-sectional view of the other member shown in FIG.

FIG. 3 is a sectional view showing a state in which both members shown in FIG. 1 are aligned.

FIG. 4 is a cross-sectional view showing both members shown in FIG. 1 in a joined state.

FIG. 5 shows another embodiment and is a perspective view showing a main part of one member and the other member in a state before joining.

6 is a cross-sectional view showing both members shown in FIG. 5 in a joined state.

FIG. 7 shows another embodiment and is a perspective view showing a main part of one member and the other member in a state before joining.

8 is a sectional view showing both members shown in FIG. 7 in a joined state.

FIG. 9 is a perspective view showing a main part of one member used in another embodiment.

10 is a perspective view showing a main part of the other member used in combination with the member of FIG. 9. FIG.

FIG. 11 is a cross-sectional view showing both members shown in FIGS. 9 and 10 in a joined state.

FIG. 12 is a cross-sectional view of the main parts showing a modification of FIGS. 9 to 11.

FIG. 13 is a partial cross-sectional view showing another embodiment and showing a main part of one member and the other member in a aligned state.

14 is a sectional view showing both members shown in FIG. 13 in a joined state.

FIG. 15 is a cross-sectional view of a main part showing another embodiment in a joined state.

16 is a cross-sectional view showing a modified example of FIG.

FIG. 17 is a cross-sectional view showing a main part of the other member using another joining member.

18 is a cross-sectional view showing a joined state using the other member shown in FIG.

FIG. 19 is a cross-sectional view showing another example of the joining member attached to the other member.

20 is a perspective view showing a main part of a bag body used for the joining member of FIG.

FIG. 21 is a cross-sectional view showing the main parts of the other member using another joining member.

FIG. 22 is a cross-sectional view showing the main parts of the other member using another joining member.

FIG. 23 is a cross-sectional view showing the main parts of the other member using another joining member.

FIG. 24 shows an example in which the present invention is applied to the joining of box culverts, and (a) and (b) are perspective views seen from different directions.

FIG. 25 is an explanatory view showing an example in which the present invention is applied to form a box culvert by assembling plate members.

FIG. 26 is an explanatory diagram showing another example of the same.

FIG. 27 is an explanatory diagram showing another example of the same.

FIG. 28 is an explanatory diagram showing a modification of FIG. 27.

FIG. 29 is an explanatory view showing an example in which the present invention is applied to the joining of the plate members forming the rectangular water tank.

FIG. 30 shows an example in which the present invention is applied to the joining of members forming a circular water tank, in which (a) is a perspective view and (b) is a longitudinal sectional view.

FIG. 31 is an explanatory diagram showing an example in which the present invention is applied to the joining of the skeletons forming the retaining wall.

FIG. 32 is an explanatory diagram showing another example of the same.

FIG. 33 is an explanatory diagram showing another example of the same.

FIG. 34 is an explanatory diagram showing an example in which two long structural materials are joined in a T shape.

FIG. 35 is an explanatory diagram showing an example in which two long structural materials are joined in a butt state.

FIG. 36 is an explanatory diagram showing an example of a column-beam joining structure.

FIG. 37 is a cross-sectional view showing another joint structure.

FIG. 38 is a cross-sectional view showing a modified example of FIG. 37.

[Explanation of symbols]

 A One member B The other member C Filler J Joint part 11 Joining surface 13 Recess 14 Relief ridge 15 Step 16 Protrusion 21 Joining surface 22 Bag body 24 Injection port 23 Anchor part 25 Groove 26 Step 27 Hole a Unevenness b Outer surface c step

Claims (7)

[Claims] 1. A state in which a recess is formed on the joint surface of one member, a bag body made of a flexible material is integrally attached to the joint surface of the other member, and the bag body is inserted into the recess. After bringing the joint surfaces of the respective members into contact with each other, the filler is press-fitted into the bag body to expand the bag body along the inner surface shape of the recess to join both members. And a method of joining members. 2. A recess is formed in the joint surface of one member, and a bag body made of a flexible material is integrally attached to the joint surface of the other member in a housed state, and the bag is provided at the entrance of the recess. After contacting the joint surfaces of each member with the body aligned,
A method for joining members, characterized in that both members are joined by press-fitting a filler into the bag and expanding the bag along the shape of the inner surface of the recess. 3. A joining structure in which one member and the other member are joined together by their abutting joining surfaces, wherein a recess is formed in the joining surface of the one member, and the joining surface of the other member. A bag body made of a flexible material inserted in the recess is attached to the bag body, and a filling material is injected into the bag body in a state where the bag body is expanded along the inner surface shape of the recess. A joining structure in which both members are joined by a connecting portion. 4. The joint structure according to claim 3, wherein the joint surfaces of the both members are provided with projections and recesses that are fitted to each other. 5. The joint structure according to claim 3, wherein the joint surfaces of the both members are provided on both sides of the step. 6. The joint structure according to claim 5, wherein the joint surfaces on both sides of the step are provided with protrusions and recesses that are fitted to each other. 7. The one member and the other member,
4. The shape having an circumscribed surface on at least one side of the joint surface having the connecting portion.
The joint structure according to 4, 5, or 6.