JPH0874331A - Member joining structure and joining structure - Google Patents

Abstract

(57) [Summary] [Object] The present invention relates to a structure in which the strength of the joint portion and the joint portion of members such as laminated lumber used for columns, beams and the like of large-scale wooden structures is remarkably improved. [Structure] In a joining portion of members, the joint is joined by a finger joint 4, and the reinforcing plate 3 is joined by a finger joint 32 to either one or both of the finger surface 5 and the flat surface 6. Is characterized by. Further, in the structure unit formed by combining the members, all or part of the joint portions of the members are joined by the finger joint 2. Furthermore, all or part of the joints of the members in the structure unit formed by combining the members are joined by the finger joints 2, and the reinforcing plate 3 is joined by the finger joints 32 to the finger surfaces 5 of the finger joints 2. Is characterized by.

Description

Detailed Description of the Invention

[0001]

[Object of the invention]

BACKGROUND OF THE INVENTION The present invention relates to a pillar of a large-scale wooden building,
The present invention relates to a structure in which the strength of the joint portion and the joint portion of members such as laminated wood used for beams and the like is significantly improved.
Incidentally, in this specification, joining means joining the end portions of the members together, and joining means joining the side peripheral portion and the end portions of the members.

[0002]

BACKGROUND OF THE INVENTION Recently, the motivation for the promotion of wooden structures has spread to the field of large-scale buildings such as sports facilities such as gymnasiums and music facilities such as concert halls. Laminated timber is used as a large cross-section material, a long straight material or a curved material that can be applied to these large-scale wooden buildings. The laminated wood is used by joining or joining the pre-cut stock beams centering on the straight wood that has been produced in advance so that it can be used for spots.

In the pasting, as shown in FIG. 7, a method of joining the splicing portion by a large finger joint has been conventionally used. Such a finger joint 4 has a high resistance to the vertical stress Fb, but is unexpectedly weak against the horizontal stress Fh, and is weak against the tension Ft acting in the direction to separate the joint surface. There was a flaw. Therefore, a part or all of the joints of the members in the direct portion of the beam or the like or the joints of the members in the structural unit such as the truss structure or the rigid frame structure are conventionally made of metal as shown in FIG. Although bolts were tightened using a joining member, with such a construction method there is a decrease in proof strength due to cross-section loss due to bolt holes, the appearance is also impaired, and when a fire occurs, the metal part softens and the proof stress decreases, and the temperature rises. Therefore, there was a problem that the surrounding wood was carbonized. Therefore, the advent of a joining structure and a joining structure of members that have high proof strength in both the vertical direction and the horizontal direction, that does not impair the external appearance, and that also has fire resistance has been desired.

[0004]

[Technical Items Attempted to Develop] The present invention has been made in consideration of such a background, and is a novel joining of members capable of remarkably improving the strength of the joining portion and joining portion of the members. This is an attempt to develop a structure and a joint structure.

[0005]

Configuration of the Invention

A joint structure of members according to claim 1, wherein a joint is jointed by a finger joint at a joint portion of the members, and further, one or both of the finger surface and the flat surface is joined. The reinforcing plate is joined by a finger joint.

Further, in the structure for joining members according to a second aspect of the present invention, in the structure unit formed by combining the members, all or part of the joining portions of the members are joined by finger joints.

Further, in the member joint structure according to the third aspect, all or part of the joint portions of the members in the structure unit formed by combining the members are joined by finger joints, and the finger surfaces of the finger joints are joined. It is characterized in that the reinforcing plates are joined by finger joints. And these means are intended to achieve the said objective.

[0008]

According to the invention described in claim 1, the reinforcing plate is joined by the finger joint to one or both of the finger surface and the flat surface of the member whose joint is joined by the finger joint. As a result, the proof stress against stress in all directions increases, and the proof stress against tension acting in the direction to separate the joint surfaces increases.

According to the invention described in claim 2,
In the structural unit formed by combining the members, all or part of the joint portions of the members are joined by the finger joints, so that the joining force between the members increases.

Further, according to the invention described in claim 3, all or a part of the joint portions of the members in the structural unit formed by combining the members are joined by finger joints, and the finger surfaces of the finger joints are joined. Since the reinforcing plate is joined by the finger joint, the joining force between the members is further increased.

[0011]

【Example】

(I) Example Corresponding to Claim 1 The present invention will be specifically described below based on the illustrated example. A reference numeral 1 in FIG. 1 is a laminated material which is an example of a member to which the present invention is applied. This is a sawn lumber laminated with adhesive B to form a block.
It will be produced in advance as a stock beam centered on a straight material so that it can be used for spots. Then, those processed (pre-cut) by an automatic finishing machine are joined together to obtain a large cross-section material, a long straight material or a curved material.

First, as defined in claim 1, in the joint portion of the laminated material 1 in which the joint is joined by the finger joint 4, the finger surface 5 where the finger 41 is visible and the finger 41 is not visible. A splicing structure in which the reinforcing plate 3 is spliced by the finger joints 32 to either or both of the flat surface 6 which is a surface will be described.

As shown in FIGS. 1 and 2, a V-shaped wave-shaped finger unit 31 is engraved at a pitch of 10 mm as an example at the joint portion of the laminated plate 1 on the reinforcing plate 3 and the finger surface 5 or the flat surface 6. , These are joined so as to mesh with each other. Then, after the adhesive B is applied to the joint surface, uniform pressure is applied to the entire joint surface by an appropriate means, and the adhesive B is continuously maintained for the curing time. In this way, since the individual fingers 31 provided on the laminated member 1 and the reinforcing plate 3 mesh with each other, the tension Ft acting in the direction to separate the joint surfaces is obtained.
And the proof stress against the horizontal stress Fh becomes extremely high. Further, as shown in FIG. 3, if the joining portion of the laminated member 1 on the finger surface 5 and the flat surface 6 is covered with the reinforcing plate 3, the stress Fh in the horizontal direction and the stress F in the vertical direction are obtained.
The durability in all directions such as b is increased.

(II) Example Corresponding to Claim 2 Next, as defined in claim 2 and as shown in FIGS. 4 to 6, in a structural unit such as a truss structure or a ramen structure formed by combining members, A joint structure in which all or part of the joint portions of the members are joined by the finger joint 2 will be described.

First, the truss structure shown in FIGS. 4 and 5 will be described. The joining of members in such a truss structure is required to be carried out without causing meridian or slip. For this reason, a groove is cut in the horizontal member of the truss structure, and the finger unit 21 is inscribed therein. Further, with respect to the diagonal member, the finger unit 21 is engraved so as to be horizontal in the joined state. Then, the adhesive B is applied to both the fingers 21 to join them. Incidentally, as the single finger 21, a finger having a pitch of about 10 mm is applied as an example, but the finger is not limited to this. Also, FIG. 5 (a) (b)
As shown in (c), a metal fitting 7 in which a single finger 21 is engraved in a V-shaped wave is provided between the diagonal material and the horizontal material, and the diagonal material is joined to the metal fitting 7 with a bolt as an example. Adhesive B using the fingers 21 of both the metal fittings 7 as an example
May be joined together to form a truss structure. Although the embodiment of the truss structure has been shown above, it is of course possible to apply it to a rigid frame structure as shown in FIG.

(III) Example Corresponding to Claim 3 Next, as defined in claim 3 and as shown in FIG. 5, in a truss structure formed by combining members, or a structural unit such as a rigid frame structure, A joint structure in which all or a part of the joint portions of the members are joined by the finger joints 2 and the reinforcing plate 3 is joined to the finger surfaces 5 by the finger joints 32 will be described.
This structure is a structure in which the reinforcing plate 3 is provided in addition to the structure defined in claim 2, and the finger unit 3 is provided with respect to the finger surface 5 which is the face on which the finger unit 21 is visible.
1 is engraved, and the reinforcing plate 3 is bonded thereto with the adhesive B.

(IV) Other Modifications In the above-mentioned embodiment, the joining was performed with the adhesive B. Of course, as shown in FIG. 6, a nut is embedded in the joining surface of one member and the joining surface is fixed. , Even if a hole is provided in the joint part of the other member and a bolt is inserted from here and the joint is made by the engagement of the bolt and the nut, stress is applied in all directions, and further in the direction in which the joint surface is to be separated. It is possible to improve the proof stress against the acting tension Ft.

[0018]

The present invention has the constitution as described above, and thereby exhibits the following effects. According to the invention described in claim 1, the reinforcing plate 3 is joined by the finger joint 32 to one or both of the finger surface 5 and the flat surface 6 of the member whose joint is joined by the finger joint 4. As a result, the proof stress against stress in all directions increases, and the proof stress against tension acting in the direction to separate the joint surfaces increases.

According to the invention described in claim 2,
In the structural unit formed by combining the members, all or part of the joint portions of the members are joined by the finger joint 2, so that the joining force between the members increases.

According to the third aspect of the invention, all or part of the joints of the members in the structure unit formed by combining the members are finger joints 2.
Since the reinforcing plate 3 is joined to the finger surface 5 of the finger joint 2 by the finger joint 32, the joining force between the members is further increased.

[Brief description of drawings]

FIG. 1 is a perspective view showing a joining structure of members according to the present invention.

FIG. 2 is a perspective view showing a processed state of a joint of the member joining structure of the present invention.

FIG. 3 is a plan view showing a joined state of reinforcing plates.

FIG. 4 is a perspective view showing a joint structure of a member of the present invention to a truss structure.

FIG. 5 is a plan view and a perspective view showing a joined state of the reinforcing plate and the metal fitting.

FIG. 6 is a perspective view showing an embodiment in which a bolt is used for a joint portion.

FIG. 7 is a perspective view showing a conventional seaming structure for a wooden structure.

FIG. 8 is a perspective view showing a joint structure of a wooden structure using the same metal member.

[Explanation of symbols]

 1 Laminated material 2 Finger joint 3 Reinforcing plate 4 Finger joint 5 Finger surface 6 Flat surface 7 Metal fitting 21 Finger single body 31 Finger single body 32 Finger joint 41 Finger single body B Adhesive Fb stress Fh stress Ft tension

Claims (3)

[Claims] 1. A joint portion of members, wherein the joint is jointed by a finger joint, and a reinforcing plate is joined by a finger joint to either one or both of the finger surface and the flat surface. A structure for joining members. 2. A joint structure of members, wherein in a structural unit formed by combining members, all or part of joints of the members are joined by finger joints. 3. A structure unit comprising a combination of members, wherein all or some of the joints of the members are joined by finger joints, and the reinforcing plate is joined by finger joints to the finger surfaces of the finger joints. And the joining structure of the members.