JP2004263548A - Connection structure between timbers in wooden building, and method of connecting the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connection structure of timbers in a wooden structure, which facilitates implementation of a reinforcing structure of a new building or an existing building, at a joint portion between the timbers such as a vertical member and a horizontal member without execution of large-scale construction work, is excellent in appearance without exposure of joint fixtures etc. to the outside, and employs environment-friendly wooden members, and to provide a method of connecting the timbers together. <P>SOLUTION: According to the connection structure, a sill a and a column b as the timbers, have dowel holes 1 formed in their contact surfaces at the joint portion therebetween, so as to be diagonally penetrated into the sill a and the column b, in a manner communicating with each other, and wooden dowels d are inserted into the dowel holes 1, respectively. The wooden dowels d may be inserted into the dowel holes 1 together with an adhesive f. By virtue of the connection structure, the joint portion between the column b of the wooden structure and the lower horizontal member such as the sill a, a beam, or a girder, or the upper horizontal member such as the beam or the girder, i.e. a column base portion, a column head portion, or the like can be reinforced. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention relates to a wooden building in which woods, that is, columns that are vertical members in a wooden building, and a lower horizontal member such as a base that is a horizontal member, or an upper horizontal member such as a beam or a girder, are fixed. The present invention relates to a connection structure between woods and a method therefor.

  In a wooden building, as a means to bind the horizontal members such as bases and beams to the columns, joints are installed on the side surfaces of the columns, and the horizontal members and the joints are joined by bolts. There is a joining method using various joining tools, for example, a joining method as shown in Patent Literature 1 below, a joining method using a so-called hole-down hardware or the like.

  However, the method of installing the metal joint on the side of the column is inevitable from exposing the metal joint and the joint, and has problems such as interference with other metal hardware such as a bracing metal and a construction defect in a window frame portion.

  Therefore, there is a method of joining and fixing the column capital by means of a tenon-type joint metal fitting shown in Patent Literature 2 and a steel plate insertion type metal fitting shown in Patent Literature 3 below.

According to these joint hardware, since they are inserted into the pillars, the hardware does not protrude on the pillar side surfaces after construction, and the pillar side surfaces can be flush with each other, so it is excellent in aesthetic appearance and even when applying a decorative finish convenient.
JP-A-10-204986 (FIG. 6) JP-A-10-338968 JP-A-8-68120

  However, these prior art structures have a problem in that since they are made of metal, they become a thermal bridge in the wall and may cause dew condensation in the wall. There is also a problem that the raw materials and processing costs of hardware are high.

  Therefore, there is a method of joining the column capitals by inserting a wooden dowel into the mouth of the pillar and the side of the cross member, as in the case of the tenon-type joint metal fitting.

  However, when constructing these, there is a problem that it is necessary to process in advance the pillar pier and base, and it is difficult to make additional changes during or after construction, especially for reinforcement work on existing buildings, etc. It is very complicated with complicated construction.

  In order to solve the above-mentioned problems, the present invention is to easily obtain a reinforcing structure at a joint portion between timbers such as a vertical member and a horizontal member without performing large-scale construction of an existing building in addition to a new building. It is an object of the present invention to provide a joint structure between woods in a wooden building using environmentally friendly wood, which is excellent in aesthetic appearance without showing a joint fitting and the like, and a method therefor.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
In the wooden structure according to the first aspect of the present invention, the dowel hole 1 communicating obliquely across the two lumbers a and b with respect to the joint surface at the joint between the lumbers a and b is provided. It is formed by inserting a wooden dowel d into the dowel hole 1.

  Further, in the connecting structure of the timbers in the wooden building according to the second aspect, the dowel hole 1 is formed so that the dowel hole 1 that communicates in an oblique direction across the two timbers a and b with respect to the joining surface at the joining portion of the timbers a and b. And a wooden dowel d is inserted into the dowel hole 1 together with the adhesive f.

According to a third aspect of the present invention, there is provided a method for joining timber in a wooden building, wherein a dowel hole 1 communicating with both of the woods a and b is formed obliquely with respect to a joint surface of a joint between the woods a and b. Process and
Injecting an adhesive f into the dowel hole 1;
A step of applying an adhesive f to the wooden dowel d;
Inserting the wooden dowel d into the dowel hole 1;
It is characterized by having.

  According to such a connection structure between timbers in a wooden building and a method therefor, a pillar b as a timber as a timber of a wooden building and a base a, a beam or a girder as a timber as a timber. Reinforcement with a horizontal member or a joint with an upper horizontal member a ′ such as a beam or a girder, that is, a wooden dowel d that is inserted into a dowel hole 1 that diagonally connects a column base or a column cap. This makes it possible to easily reinforce the column bases and capitals of an existing building in addition to a newly-built building without performing large-scale construction.

  Further, when the wooden dowel d is inserted into the dowel hole 1, the structure is such that the wooden a and b are inserted together with the adhesive f, thereby increasing the bonding strength between the wood a and b.

  The number of the dowel holes 1 may be plural, and may be two, for example, so as to intersect in an X-shape in a side view. The joint between the woods a and b may have a tenon structure including a tenon 3 and a tenon hole 2. In the case of this tenon structure, it is preferable that the dowel hole 1 is formed as a dowel hole 1 communicating along the abutting contact surface between the tenon 3 and the tenon hole 2. When the adhesive f is injected into the hole 1, the adhesive f also penetrates between the facing contact surfaces of the tenon 3 and the tenon 2, and the bonding strength is further improved as a bonding structure.

  ADVANTAGE OF THE INVENTION According to the connection structure of the wood in the wooden building of this invention, and the method, the wood dowel is inserted obliquely into the dowel hole which connects woods mutually, and does not protrude outside, and is excellent in aesthetics. In addition, a favorable effect can be obtained in applying a cosmetic finish. Further, since the wood dowel is made of the same material as each wood, there is no possibility that dew condensation or the like occurring as a conventional thermal bridge occurs. Furthermore, since the direction in which the wooden dowels are arranged is oblique to the direction in which the wooden pieces are joined, the wooden dowels can exhibit resistance in the bending direction and the pull-out direction at the joint between the wooden pieces. it can. According to this wooden dowel, it is easy to fit between the woods, for example, the base and the column, and it is difficult to cause splitting fracture by using a rigid member such as a conventional metal bolt or steel bar at this joint. Can be obtained.

  In particular, according to the joint structure and method of the timber in the wooden building of the present invention, the post-installation processing of the vertical members such as pillars and the horizontal members such as the horizontal members as the timber is possible. Tightening of pillars and capitals during construction, as well as binding after construction, further reinforcement of pillars and capitals of existing buildings, pillars and capitals in lower buildings of traditional buildings There is an advantage that the reinforcement can be easily performed without extensive construction.

  Also, by using an adhesive for the dowel hole and the wood dowel, the bonding state of the woods becomes stronger, and together with the wood dowel inserted diagonally, a bonding structure capable of obtaining sufficient strength. It becomes.

FIG. 1 is an explanatory view showing a perspective view and a transparent perspective view showing one embodiment of a combined structure of a vertical member and a horizontal member as wood in a wooden building according to the present invention. .
In the embodiment described below, as wood in a wooden building, one is described as a horizontal member, and the other is described as a vertical member. The horizontal member is a base a installed on a foundation, and the vertical member is a pillar. b, and will be described as a connection structure at a column-base joint portion composed of the base a and the column b.

The mortise 3 and the mortise hole 2 are formed between the base a and the pillar b, and the mortise 3 and the mortise hole 2 are joined to each other. A dowel hole 1 is formed at a position that does not interfere with the tenon 3 and the tenon 2 over the base a and the column b (see FIG. 2).
The dowel hole 1 reaches the base a in an oblique direction from the side surface of the column b, that is, the dowel hole 1 is formed to communicate with the column b and the base a.

In the present embodiment, as shown in FIG. 1B and FIGS. 5 and 6, the tenon 3 is so arranged as to be substantially X-shaped and cross each other in a side view, and alternately in a plan view. Two dowel holes 1 are formed so as to be sandwiched between them.
Then, an adhesive is injected into the dowel hole 1, and a wooden dowel d is inserted.

That is, as shown in FIG. 1 (b), approximately half of the dowel d is inserted into the base a so as to penetrate the column b, and the wooden dowel d is connected to each other. In this connected state, as shown in FIG. 1 (a), only the end of the wooden dowel d is exposed on the side surface of the pillar b.
In addition, the end of the dowel dowel d is inserted in a state protruding from the side surface of the column b and is shaved off along the side surface of the column b, or is inserted further than the side surface of the column b, and is concave with respect to the side surface. The opening portion of the dowel hole 1 may be subjected to processing such as wood plug or putty to form a smooth side surface.

Next, a construction procedure of the above configuration will be described.
First, in the column-base joint portion composed of the base a and the column b installed on the foundation of the wooden building, in the present embodiment, using a perforation device c as shown in FIG. A dowel hole 1 is provided at a predetermined angle with respect to the column b, for example, at an angle of about 30 ° from a substantially vertical side surface of the column, and the base a and the column b communicate with each other. The dowel hole 1 preferably has a length that does not penetrate the base a. That is, since the dowel hole 1 does not penetrate, the adhesive remains in the base a during the injection of the adhesive described below.

  The piercing device c is a device for piercing the pierced body at a predetermined angle with respect to the pierced body reference plane, in this embodiment, the side surface of the column b, and as shown in FIG. The jig c2 for fixing the angle is attached to the tool c1. The jig c2 moves the drilling tool c1 with the angle adjusting unit c21 capable of adjusting the angle according to a desired angle and the drilling. The movable part c22 is made possible.

  Next, as shown in FIG. 4, wood powder in the dowel hole 1 is removed as completely as possible by a suction-type cleaner E having a tapered suction port e that can be inserted into the dowel hole 1.

  Next, the adhesive f is injected into the dowel hole 1. For this injection, an injector F having a nozzle insertable into the dowel hole 1 is used as shown in FIG.

Next, an adhesive f equivalent to the adhesive injected into the dowel hole 1 is applied to the wooden dowel d.
In addition, as the adhesive, for example, an adhesive that firmly adheres wood to each other and has elasticity after curing, for example, a polyurethane resin-based adhesive is used.

  Next, as shown in FIG. 6, the wooden dowel d is cast obliquely from the dowel hole 1 formed in the side surface of the pillar b. Thereby, the base a and the column b are tightly fixed (see FIG. 1). Preferably, curing is performed for 2 to 3 days for solidification of the adhesive.

  According to the joint structure of the present invention, the wooden dowel d is inserted through the dowel hole 1 which can communicate with each other inside the column-base joint formed by the base a and the column b, and the wooden dowel is obliquely inserted at the joint. Since d is provided, it is possible to exhibit sufficient strength at this joint.

  In addition, according to the connection structure of the wooden dowel d, since the wooden dowel does not protrude to the outside, only the outer surfaces of the base and the pillar, the pillar and the beam, etc. are provided. It is an excellent joint that is convenient for applying a decorative finish, and does not hinder the formation of braces or the formation of a wall.

  In this connection structure, since it is joined by the wooden dowel d, which is the same material as the base a and the column b, there is no possibility that dew condensation or the like that occurs as a conventional thermal bridge occurs.

  Furthermore, since the wooden dowel d is joined to the base a and the column b in an oblique direction, the wooden dowel d can exert resistance in the bending direction and the pull-out direction. In addition, the base a and the column b, which are the base materials, are easily compatible with each other, and it is possible to obtain an effect that splitting failure at the joint is less likely to occur than a conventional rigid member such as a metal bolt or a steel rod. it can.

  In particular, according to the connection structure of the present invention, there is an advantage that reinforcement of an existing building as well as a new building can be easily performed without large-scale construction such as jacking up.

  In the above-described embodiment, the column-base joint composed of the base a and the column b has been described. However, the column-base joint and the column-cap joint composed of the horizontal member a ′ and the column b may be similarly implemented. Can be.

  As shown in FIG. 7 (a), the horizontal member a 'and the column b communicate with each other at a predetermined angle with respect to the horizontal member a' from the upper surface of the horizontal member a 'at the joint portion of the capital. A possible dowel hole 1 'is provided, and a wooden dowel d in which the horizontal member a' and the column b are obliquely cast as shown in FIG. To secure.

  Further, in the above-described embodiment, the dowel hole 1 is described as an example in which the dowel hole is formed so as to avoid the tenon and the tenon hole. However, as shown in FIG. It is good also as a structure perforated so that the tenon 3 which pillar b has may be connected. With such a dowel hole 1, as shown in FIGS. 9 and 10, the adhesive f injected from the dowel hole 1 can be filled into the gap between the mortise hole 2 and the tenon 3, and the adhesive layer It is also possible to provide f23. With such a configuration, the bonding strength between the base a and the column b can be increased, and together with the above-described obliquely inserted wooden dowel of the present invention, a bonding structure capable of obtaining sufficient strength can be obtained. .

  Furthermore, in the above-described embodiment, the number of the dowel holes 1 is set to two opposing positions, and the wooden dowel d is inserted into each of the two places. However, the number of the dowel holes 1 and the wooden dowel d The direction is not particularly limited, and a plurality may be arbitrarily configured as long as they do not interfere with each other. In addition, the drilling angle of the dowel hole 1 is not limited to about 30 ° as described above, and other angles may be used. Alternatively, a plurality of angles may be combined.

  Further, in the above-described embodiment, the connection between the vertical member such as the pillar and the horizontal member such as the base, the beam, and the horizontal member is described as the wood, but the vertical member and the vertical member, for example, the longitudinal direction of the columnar member are used. Any structure may be used as long as it is a connection structure between timbers, such as a structure that connects to a timber, or a structure that connects a horizontal member to a horizontal member, for example, a beam to a girder. Can be firmly bonded.

  Furthermore, in the above-described embodiment, the configuration has been described in which the adhesive is injected into the dowel hole 1 and the adhesive is applied to the wooden dowel d. However, the dowel is formed without using such an adhesive. It is also possible to adopt a configuration in which only the wooden dowel d is pressed into the hole 1. Even in the case where such an adhesive is not used, since the wooden dowel d is provided diagonally at the joint between the base a and the column b as described above, it has sufficient strength. Thus, an effect similar to the above can be obtained. And since it is the structure which does not use an adhesive agent, it can respond to the place where an adhesive cannot be used positively, etc., and a sufficient joint structure can be obtained also in such a place.

  Further, in the above-described embodiment, the example in which the dowel hole 1 is formed by drilling using the punching device c as shown in FIG. 2 has been described. However, the present invention is not limited to the device having the above-described structure. Any structure may be used as long as it has a function capable of performing drilling at a predetermined angle with respect to the drilling body reference plane, and furthermore, the drilling may be performed without using such a configuration device. Even if it does, the above-mentioned effect is obtained.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which showed (a) the perspective view which shows one Embodiment of the joint structure of the vertical member and the horizontal member in the wooden building by this invention, and showed the transparent perspective view to (b). It is a front view which shows the execution procedure of the coupling method in the embodiment. FIG. 3 is an exploded front view of a perforation device used in the joining method according to the embodiment. It is a front view which shows the execution procedure of the coupling method in the embodiment. It is a front view which shows the execution procedure of the coupling method in the embodiment. It is a front view which shows the execution procedure of the coupling method in the embodiment. It is a front view showing the enforcement procedure of the joining method in other embodiments. It is an exploded perspective view in other embodiments. FIG. 15 is a transparent perspective view of an adhesive layer in which a tenon and a wooden dowel are integrated in another embodiment. It is a plane sectional view of a joined part in other embodiments.

Explanation of reference numerals

a ... Horizontal material (base)
a '... horizontal material (horizontal material)
b ... vertical member (pillar)
c: punching device c1: drilling tool c2: jig c21: angle adjusting part c22: movable part d: wood dowel e: tapered suction port f: adhesive f23: adhesive layer 1, 1 ': dowel hole 2: mortise Hole 3 ... tenon

Claims (3)

  Wood dowels in a wooden building, characterized in that a dowel hole communicating obliquely across the two woods is formed in a joint surface of the woods at a joint surface between the two woods, and a wooden dowel is inserted into the dowel hole. Connection structure.   A wooden building, characterized in that a dowel hole communicating obliquely across the two woods is formed in a joint surface of the timber at a joint surface between the two woods, and a wooden dowel is inserted into the dowel hole together with an adhesive. Structure of woods in a building. A step of obliquely drilling a dowel hole communicating with each other at the joint surface between the timbers at the joint between the two timbers,
Injecting an adhesive into the dowel hole,
Applying glue to the wooden dowels;
Inserting the wooden dowel into the dowel hole;
A method for joining wood pieces in a wooden building, characterized by having:

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