JPH11350601A - Connecting structure of structural member of wooden building and connecting method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connecting method of the structural members of wooden building safe and excellent in versatility. SOLUTION: An end surface of a column 1 is butted against the end surface of a beam 2, and at least one bolt-inserting hole 4 is formed so as to penetrate the column 1 in the horizontal or oblique direction, and an embedding-nut hole 5 is formed so as to be penetrated through the bolt-inserting hole 4 inside the beam 2 and to take the same direction as the bolt-inserting hole 4. A nut seat 10 is formed to the bolt-inserting hole 4 on the outer circumferential side of the column 1, and an embedding nut 6 is fixed to the embedding-nut hole 5, and a bolt 7 inserted into the bolt-inserting hole 4 is fixedly screwed into an embedding-nut 6. A nut 12 arranged to the nut seat 10 is screwed onto the bolt 7, and a first adhesive injection hole 8 passing through the inside of the bolt 7 from the outside end surface of the bolt 7 and reaching the side surface of the bolt 7 and a second adhesive injection hole 9 are formed, and the column 1 and the beam 2 are connected by injecting adhesive into the adhesive injection holes 8, 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joining structure for joining structural members of a wooden building such as a pillar, a beam, a girder made of wood, laminated wood, or the like with bolts, nuts, adhesives, and the like, and those structural members. The present invention relates to a joining structure for a structural member of a wooden building and a joining method for the joining member, which can easily and securely join the structural members and significantly shorten the construction period.

[0002]

2. Description of the Related Art In recent years, for the purpose of labor saving and rationalization of construction of houses and the like, or improvement of strength of joints, jointing jigs have been used for joining beams and girders, beams and columns, and trunks and through columns. DESCRIPTION OF RELATED ART The joining method of the structural member of a wooden building which employ | adopted the connection, the joint, etc. using a fixture, metal fittings, box hardware, etc. is developed.

[0003] Also, since many wooden houses are greatly damaged by the earthquake including the Great Hanshin Earthquake, the structural strength of the entire building, including the strength of joints and the like, is strengthened for wooden buildings. In recent years, various types of frame structures and frame construction methods have been proposed.

For example, Japanese Unexamined Utility Model Publication No. 63-162008 discloses a frame fitting used for a wooden frame construction method, and Japanese Patent Application Laid-Open No. 9-41391 discloses a joint using a box fitting or the like. A frame structure for improving the structural strength of the structure is disclosed.

By the way, the conventional joining methods of structural members can be roughly classified into the following five types.

(1) As shown in FIG. 11, a special hardware called a box metal member 31 is used to fix the box metal member 31 to one structural member (column) 32 and form a pin hole 33 in the other structure. A method in which the box hardware 31 is housed in a space 35 of a member (beam) 34, and a pin is inserted into a pin hole 33 to join the structural members 32 and 34 (hereinafter, referred to as a conventional joining method 1). (2) A method of joining structural members using special hardware called a plate (hereinafter, referred to as a conventional joining method 2). (3) As shown in FIG. 12, a bolt 37 having an adhesive injection hole 36 provided in the longitudinal direction is attached to both structural members 38 (posts) and 39.
A gap between the outer peripheral surface of the bolt 37 and the inner wall surface of the opening 40 is stored in the (beam) opening 40 and the adhesive injected into the bolt 37 from the adhesive injection pipe 41 passes through the injection hole 36 in the bolt 37. The two structural members 38 and 39
(Hereinafter, referred to as conventional joining method 3).

(4) A method of joining structural members using a special hardware having a shape similar to a connection (hereinafter, referred to as a conventional joining method 4) (5) A method of joining structural members with bolts and pins (hereinafter, referred to as a conventional joining method 4) Conventional bonding method 5)

[0008]

SUMMARY OF THE INVENTION Conventional joining methods 1 to 5
Has an advantage in terms of streamlining the construction method, compared to the traditional pre-cut construction method, which is a framed construction method in which a traditional connection is machined. However, the conventional joining methods 1 to 5 have the following problems.

In the conventional joining method 1, the joining surface of both structural members is subjected to cutting, slitting or drilling according to the box metal, and the box metal 31 is attached to the joint of one structural member 32 during assembly. The two structural members 3 are attached by fittings such as pins inserted into the pin holes 33 of the other structural member 34.
2 and 34 are joined. However, this method has the drawback that various processes are complicated and lacks in simplicity, the structure of the box metal is complicated and lacks versatility, and the number of parts is large, so that the construction work is complicated and the workability is poor. In addition, since structural members are required to have mechanical strength such as bending, pulling, compression, and shearing, the box hardware becomes large and is inferior in transportability. Furthermore, there is a problem that mounting large-sized hardware at a high place lacks safety. In addition, since the conventional joining method 1 cannot always obtain a large strength at the joining portion, reinforcing members such as streaks, structural plywood, steel braces, etc. are necessary to prevent deformation of the wall surface due to horizontal force. It is. However, there have been cases where reinforcing members such as streaks do not perform their original functions due to breakage, detachment, or corrosion during an earthquake. In addition, since the box hardware has a projection, it has a disadvantage in that it is not safe in terms of construction work, and that it requires a lot of time for mounting because of the large number of types and the number of hardware used. Furthermore, when there are many types of hardware, there is a problem that mounting errors are likely to occur at the time of construction, and construction costs increase.

According to the conventional bonding method 2, in addition to the problems of the conventional bonding method 1, the metal is special,
There is a problem of lack of versatility.

According to the conventional joining method 3, a rod material such as a bolt 37 (or a reinforcing bar) is housed in an opening 40 formed in each of the structural members 38 and 39, and an opening 40 formed in the structural member and an outer peripheral surface of the bolt 37 are provided. An adhesive is injected into a gap between the structural members 38 and 39 to join the structural members 38 and 39 together. But,
This method has a disadvantage that both structural members must be temporarily fixed in some way until the adhesive injected into the structural members solidifies to a predetermined strength. In addition, there is a problem that the injected adhesive leaks out unless the joining surfaces of the two structural members are strongly adhered to each other when the adhesive is injected. For this reason, it is impossible to adopt the construction method of assembling while fixing the individual structural members in order, as is conventionally done,
After assembling the main part at a location different from the construction site, it must be transported to the construction site and assembled. Further, if the temporary fixing is not properly performed, there is a risk that the joint may be decomposed until the joint has a predetermined strength. Furthermore, if the joint is at a high place, there is a problem in safety, and work at a high place cannot often be performed quickly.

According to the conventional joining method 4, since special hardware is used, there is a problem that versatility is further reduced.

[0013] The conventional joining method 5 is unusual because it is special, and there is a problem that sufficient joining strength cannot be ensured unless the beam has a large cross section. It has the disadvantage of being unsuitable.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has as its object the provision of temporary fixing during construction, which significantly improves construction workability and structural strength. Another object of the present invention is to provide a joint structure for a structural member of a wooden building, which has an extremely short construction period, is safe and has excellent versatility. In addition, the object of the present invention is to improve the workability significantly by being able to temporarily fix at the time of construction, to improve the structural strength, to simplify the joining technology and to significantly shorten the construction period, to secure and versatile. An object of the present invention is to provide an excellent method for joining structural members of a wooden building.

[0015]

According to the present invention, a bolt having an adhesive injection hole penetrating one structural member is screwed to an embedded nut embedded in the other structural member. Because it is characterized by screwing a bolt penetrating one structural member into an embedded nut embedded in the other structural member, and screwing the nut to the other end of this bolt, both structural members are connected. The two structural members are firmly joined by temporarily fixing and then injecting an adhesive into the adhesive injection hole.

Further, according to the present invention, a first bolt insertion hole is formed so as to obliquely penetrate all structural members of a first structural member group including first, second and third structural members. A fourth structural member arranged perpendicular to the structural member group is brought into contact with the second structural member to obliquely penetrate the fourth structural member and the second structural member and interfere with the first bolt insertion hole. The first structure is formed by inserting a bolt having an adhesive injection hole into each of the first bolt insertion hole and the second bolt insertion hole and screwing it with a nut. By temporarily fixing the member group and the fourth structural member, and then injecting an adhesive into the adhesive injection hole, the first structural member group and the fourth structural member are firmly joined.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a joining structure of two structural members forming a wooden building, wherein an end surface of one structural member is brought into contact with an end surface of the other structural member. One or more bolt insertion holes are formed so as to penetrate the structural member horizontally or diagonally, and are embedded in the other structural member so as to communicate with the bolt insertion hole and to be in the same direction as the bolt insertion hole. Form a nut hole, form a nut seat in the bolt insertion hole part on the outer peripheral side of one structural member,
An embedded nut is fixed in the embedded nut hole, a bolt inserted in the bolt insertion hole is screwed into the embedded nut, a nut arranged in the nut seat is screwed to the bolt, and a bolt is inserted from an outer end face of the bolt. A wooden structure characterized in that one structural member and the other structural member are joined by forming an adhesive injection hole so as to pass through the inside to reach the side surface of the bolt and injecting the adhesive into the adhesive injection hole. The joint structure of the structural members of the building is a first invention, and in the first invention, the structure is formed from a side of the one structural member facing the bolt insertion hole or a side of the other structural member facing the embedded nut hole. According to a second aspect of the present invention, there is provided a joining structure of a structural member of a wooden building, wherein one or more air vent holes are provided so as to reach an outer peripheral side of the member. Hole A first adhesive injection hole formed in parallel with the longitudinal direction of the bolt from an outer end surface of the bolt, and provided so as to communicate with the first adhesive injection hole and to be orthogonal to the first adhesive injection hole. A joining structure for a structural member of a wooden building, comprising a second adhesive injection hole, according to a third invention, a method for joining two structural members forming a wooden building, One or more bolt insertion holes are formed so as to penetrate the member horizontally or obliquely, and are formed in the other structural member so as to communicate with the bolt insertion holes and to be in the same direction as the bolt insertion holes. An embedded nut is fixed in the embedded nut hole, an end surface of one structural member is brought into contact with an end surface of the other structural member, and a bolt is inserted into a bolt insertion hole of one structural member and screwed into the embedded nut. , The outer peripheral bolt of one structural member Nut is arranged on the nut seat formed in the insertion hole part and screwed with the bolt, and the adhesive is injected into the adhesive injection hole formed so as to pass through the inside of the bolt from the outer end surface of the bolt and reach the side of the bolt By doing so, the fourth invention of the method for joining structural members of a wooden building, characterized in that one structural member and the other structural member are joined, the first, second, second forming a wooden building Each structural member of the first structural member group consisting of three structural members is brought into contact with each other and arranged in the same direction in this order, the fourth structural member is arranged so as to be orthogonal to the first structural member group, and A first bolt insertion hole is formed so as to abut on the second structural member and obliquely penetrates all the structural members of the first structural member group, and does not interfere with the first bolt insertion hole and is a fourth structural member. And the second bolt insertion hole obliquely penetrating the second structural member A bolt is formed in a cross shape with respect to the through hole, the bolt is inserted into the first bolt through hole and the second bolt through hole, respectively, and screwed with the nut. By forming an adhesive injection hole so as to reach the side surface, by injecting an adhesive into the adhesive injection hole,
The joint structure of the structural members of the wooden building characterized by joining the first structural member group and the fourth structural member is a fifth invention, and in the fifth invention, the first, second or third One or more air vent holes are provided so as to reach the outer peripheral side of the structural member from the side of the structural member facing the first bolt insertion hole and the side of the second or fourth structural member facing the second bolt insertion hole. The joint structure of the structural members of the wooden building is characterized in that the sixth invention, in the fifth or sixth invention, the adhesive injection hole is parallel to the longitudinal direction of the bolt from the outer end face of the bolt It is characterized by comprising a first adhesive injection hole formed, and a second adhesive injection hole provided so as to communicate with the first adhesive injection hole and to be orthogonal to the first adhesive injection hole. The joining structure of the structural members of a wooden building The first, second and third structural members forming the first structural member group are formed in the first structural member group, and are arranged in the same direction in this order. The first bolt insertion hole is disposed so as to be orthogonal to the group and abuts against the second structural member, and the first bolt insertion hole is formed so as to obliquely penetrate all the structural members of the first structural member group. A second bolt insertion hole that does not interfere with the first bolt insertion hole and does not interfere with the first and second bolts is formed in a cross shape with respect to the first bolt insertion hole. Each bolt is inserted through the insertion hole, and after the bolt is inserted, each of the bolts and the nut are screwed together, and the adhesive is inserted into the adhesive injection hole formed so as to pass through the inside of the bolt from the outer end surface of the bolt to the side surface of the bolt. The first structural member group and the fourth structural member The method of joining structural members of wooden buildings, characterized by joining the eighth invention.

In the present invention, the structural member of a wooden building refers to a column, a beam, a girder, or the like made of wood, glued laminated wood, laminated boards, or the like.

In the present invention, a bolt having a circular cross section formed with a screw portion over the entire length can be used, but the screw portion can also be formed partially, for example, only at both ends. At this time, the shape of the central portion can be formed in a substantially polygonal shape such as a substantially circular, substantially elliptical, triangular, square, or hexagonal cross section.

The bolt may be made of metal such as stainless steel, carbon fiber, boron fiber, glass fiber, or the like.
What is formed by processing an organic or inorganic fiber such as a metal fiber and a synthetic resin is used.

As the nut and the bolt provided on the nut seat, a so-called headed bolt can be used.

One or more bolt insertion holes are provided on the contact surface of the structural member to be joined, and the diameter of the bolt insertion hole is preferably slightly larger than the maximum diameter of the bolt.

The embedding nut hole, the bolt insertion hole and the nut seat can be formed by drilling or cutting on site by a drill or the like, but can also be formed in a factory by a pre-cut method.

As the adhesive, various known adhesives can be used. For example, an epoxy resin adhesive, a vinyl acetate resin adhesive, a urea resin adhesive, a polyurethane adhesive and the like are used. can do.

According to the joint structure of the present invention, the two structural members are joined by the mechanical joining force of the bolt and the nut and the chemical joining force of the adhesive. The resistance to tension, compression, shear, and the like can be significantly improved.

In addition, since the joints of the structural members can be securely fixed with bolts and nuts at the time of construction, it is possible to assemble the individual structural members in order as conventionally performed at a construction site. .

According to the first to fourth inventions, the individual structural members are firmly fixed by screwing nuts and bolts arranged on the embedded nut and the nut seat.
There is no need for special temporary fixing work. According to the fifth to eighth inventions, the first structural member group and the fourth structural member are firmly connected by screwing a nut and a bolt inserted in the first bolt insertion hole and the second bolt insertion hole. Since it is fixed, there is no need for special temporary fixing work. Therefore, there is no need to perform an extra operation of assembling the main structural member at another location different from the construction site, and then transporting the structural member to the construction site, so that the construction cost can be reduced.

Further, the processing of the joint is almost the same as the conventional method (mechanical pre-cut), and no special processing is required. Also, since the number of parts is small, on-site construction is easy.

In particular, in the first invention, the inclination angle of the bolt and the embedded nut is preferably 0 degree when the horizontal member (beam) is horizontal with respect to the column. It is preferable that the inclination angle of the structural member to which a particularly large force is applied is in the range of 30 to 60 degrees with respect to the horizontal. If it is less than 30 degrees, the effect is not so different from that when the bolt is leveled, and if it is more than 60 degrees, the workability is deteriorated (the bolt becomes too long if it works effectively) ). In addition, in the case of a member that is obliquely joined to a column such as a climbing beam, a bolt insertion hole may be opened in parallel with the climbing beam,
When the tip is free, it is preferable to set the inclination angle to an appropriate angle within a range of 80 degrees or less according to the angle of the climbing beam or the force applied to the joint. The bolt insertion direction is
Depending on the direction in which the force is applied to the beam, the beam can be inserted from the beam side instead of the column side.

The length of each of the bolt and the embedded nut is preferably at least five times the diameter. This is because if it is less than five times, the binding force at the time of screwing will be insufficient.

When two or more bolts are provided, the distance between the bolts in the vertical and horizontal directions is preferably at least three times the diameter of the bolt. Further, it is preferable that the distance of the bolt insertion hole from the end of the structural member is at least three times the diameter of the bolt. If the distance or the distance from the end of the structural member is less than three times the bolt diameter, the structural member may be broken when a large force is applied to the joint.

The screw portion of the embedded nut can be provided on the entire length of the nut, or can be provided partially on the side to be screwed with the bolt. The external shape of the embedded nut may be circular, square, or hexagonal, and the shape is not limited.

The screw-in depth of the bolt and nut is preferably at least five times the bolt diameter. This is to secure a predetermined shear strength by mechanically connecting the bolt and the nut.

According to the second aspect of the present invention, the excess air contained in the adhesive injected from the adhesive injection hole of the bolt is discharged to the outside through the air vent hole, which hinders the injection of the adhesive. Will not occur. In this regard, the air vent hole can also help confirm the filling amount of the adhesive. This is because if it is confirmed that the adhesive overflows from the air vent hole, it can be considered that the inside is filled with the adhesive. After confirming that the adhesive overflows from the air vent hole, a wooden plug or the like is driven into the hole to cut off an excess portion, so that the aesthetic appearance of the structural member is not spoiled. The air vent hole having such a function is separated from the joint surface of the structural member by about 10 mm, and preferably has a diameter of 3 to 10 mm.

In the third invention, the diameter of the first adhesive injection hole formed in the longitudinal direction of the bolt and the diameter of the second adhesive injection hole provided to be orthogonal to the first adhesive injection hole are as follows. And 1/2 to 1/10 of the bolt diameter are preferable. If the hole diameter is less than 1/10 of the diameter, it takes a long time to inject the adhesive, and if the hole diameter exceeds １ ／ of the diameter, the strength of the bolt is impaired. The first adhesive injection hole formed in the longitudinal direction of the bolt may be provided so as to penetrate the longitudinal direction of the bolt, but may be provided halfway. The second adhesive injection hole may be provided so as to penetrate in the radial direction of the bolt, or may be provided only in half of the radial direction from the center to the outer periphery. When the second adhesive injection holes are provided only in half of the radial direction, it is preferable that the angles formed by the adjacent second adhesive injection holes in the circumferential direction are equal. That is, when two second adhesive injection holes are provided, they are preferably provided so as to form an angle of 180 degrees with each other, and when three second adhesive injection holes are provided, they are mutually 120 degrees. It is preferable to provide such an angle. The reason for this is that the adhesive easily spreads all over the bolt outer peripheral surface. Further, it is preferable that the second adhesive injection hole is closer to the nut arranged on the nut seat, to the extent that the second adhesive injection hole is not hidden in the nut by tightening the bolt. This is because the adhesive easily spreads over the entire gap between the bolt outer periphery and the structural member.

According to the fourth aspect of the present invention, the bolts and nuts can be temporarily fixed at the time of construction by mechanical coupling, thereby greatly improving the workability of the construction, and can also significantly improve the mechanical coupling between the bolts and nuts and the chemical bonding with the adhesive. The structural strength can be improved by the connection, and the structural members can be joined safely by a simple joining technique in a remarkably short construction period without performing complicated processing on the joining portion. In this case, if the embedded nut is fixed in advance in the structural member with an adhesive or the like at the factory, sufficient adhesive strength can be ensured, and the operation of embedding the embedded nut on site can be omitted.

In the fifth to eighth inventions, similarly to the first to fourth inventions, the structural members are joined by the mechanical bonding force of the bolt and the nut and the chemical bonding force of the adhesive. In particular, according to the fifth invention, the load applied from the left and right or up and down generated by the pulling, shearing, compression, and bending of the joint caused by the horizontal force such as an earthquake or wind is applied to the first bolt insertion hole and the second bolt insertion hole. Acts so as to be counteracted by a couple of bolts inserted into the bolts, thereby increasing rigidity. Then, by bonding with an adhesive, the strength of the joint can be further increased.

The effect of the sixth invention is substantially the same as the effect of the second invention, and the effect of the seventh invention is substantially the same as the effect of the third invention.

In particular, according to the eighth invention, bolts are respectively inserted into the first bolt insertion holes penetrating the first structural member group and the second bolt insertion holes penetrating the second structural member and the fourth structural member. Since the temporary fixing can be performed only by inserting and screwing the bolt and the nut together, the working process can be extremely simplified, and the number of working steps can be significantly reduced. Then, it is possible to assemble the respective structural members safely and in order, and to perform the bonding operation at an appropriate time.

[0040]

Embodiments of the present invention will be described below. FIG.
It is sectional drawing which shows the joining structure of this invention. In FIG.
Reference numeral 1 denotes a column as one structural member, 2 denotes a beam as the other structural member, and the beam 2 abuts the column 1 obliquely.
The end face of the beam 2 has a slightly projecting large case 3, and the end surface of the column 1 abutting on the large case 3 is concave.

Reference numeral 4 denotes a bolt insertion hole provided so as to penetrate the column 1 obliquely. The embedded nut hole 5 communicates with the bolt insertion hole 4 and is in the same direction as the bolt insertion hole 4.
Are formed on the beam 2. Reference numeral 6 denotes an embedding nut, and the embedding nut 6 is fixed to the embedding nut hole 5 with an adhesive. Reference numeral 7 denotes a bolt, and a first adhesive injection hole 8 is formed from an outer end surface of the bolt to a part thereof in a direction parallel to the longitudinal direction of the bolt. A second adhesive injection hole 9 is provided to penetrate the bolt 7 in the radial direction so as to be orthogonal to the first adhesive injection hole 8. Numeral 10 denotes a nut seat provided by cutting out the end face of the column 1. The nut 1 is screwed into the bolt 7 via a washer 11 arranged on the nut seat 10, and the column 1 and the beam 2 are joined. . For washer 11,
A hole corresponding to the first adhesive injection hole 8 is formed.
Reference numeral 13 denotes an air vent hole, which is bored from a portion facing the bolt insertion hole 4 toward the outer peripheral side of the column 1. In this case, columns 1 and beams 2 are 4
They are joined by a set of bolt-nut coupling structures.

FIG. 2 is a cross-sectional view showing a joint structure when the beam 2a is horizontally joined to the column 1a.

FIG. 3 is a perspective view of the joint structure shown in FIG. 2. In this case, the column 1a and the beam 2a are joined by four sets of bolt-nut joint structures.

FIG. 4 is a view showing an example of the bolt insertion direction. As shown in FIG. 4A, the bolt can be inserted into the column 1b from the D1 direction, or the bolt can be inserted from the D2 direction. It can be inserted. Further, as shown in FIG. 4B, a bolt can be inserted into the column 1c from the direction D3, and a bolt can be inserted into the beam 2c from the direction D4. A method for joining structural members of a wooden building according to the present invention will be described with reference to FIG.

First, the embedding nut 6 is fixed in the embedding nut hole 5 of the beam 2. As the fixing method, a fixing method using an adhesive can be used. This work can be performed at a construction site, or can be performed in a factory in advance. Next, the pillar 1 and the beam 2 are lifted by a hoist or the like, and the joining end faces are abutted with each other. Then, the bolt 7 is screwed into the embedding nut 6 through the bolt insertion hole 4, and the washer 11 is attached to the nut seat 1.
0, and the bolt 7 and the nut 12 are screwed together. In this state, the column 1 and the beam 2 can be temporarily fixed.

Next, when the adhesive is injected from the first adhesive injection hole 8, the adhesive that has entered the bolt 7 passes from the first adhesive injection hole 8 through the second adhesive injection hole 9. Fill the gap between the bolt 7, the column 1 and the beam 2. Eventually, when all the gaps are filled with the adhesive, the adhesive reaches the outside through the air vent holes 13. At that time, the air contained in the adhesive is released to the outside through the air vent hole 13. By performing the same operation at a plurality of joints (four in the case of this embodiment), the joint between the column and the beam can be completed.

If the air vent hole 13 is covered with a sealing member such as a wooden plug, for example, and an excess portion is cut and removed so as to be flush, the appearance is improved.

The same operation can be performed when the beam is joined to the column horizontally.

In the above embodiment, the bolt 7 and the nut 12 are provided separately, but a so-called headed bolt may be used.

FIG. 5 shows a case where the bolt 7 penetrates the embedded nut 6a fixed to the embedded nut hole 5a. In this case, the adhesive injected into the first adhesive injection hole 8 passes through the adhesive injection hole 8a provided in the embedded nut 6a from the second adhesive injection hole 9 and passes through the gap between the bolt 7 and the pillar 1 beam 2. And reaches the outside through the air vent hole 13a. The air vent hole 13a is formed from the side facing the embedding nut hole 5a toward the outer peripheral side of the beam 2, and the air contained in the adhesive is discharged from the air vent hole 13a to the outside. In FIG. 6, 14 is a beam (first structural member), 15 is a column (second structural member), and 16 is a beam (third structural member). One structural member group is configured. 17 is a beam (fourth structural member).
As shown in FIG. 7, the structural members 14, 15, and 16 abut each other and are arranged in the same direction in this order. Further, the beam 17 (fourth structural member) is arranged so as to abut the column 15 (second structural member) and to be orthogonal to the first structural member group. Four first bolt insertion holes 18 are formed so as to obliquely penetrate all the structural members of the first structural member group. It is preferable to provide two to four first bolt insertion holes. Also, four second bolt insertion holes 19 are formed so as not to interfere with the first bolt insertion holes 18 and to obliquely penetrate the beam 17 and the column 15. Preferably, two to four second bolt insertion holes 19 are provided. The beam 14 and the beam 16 are brought into contact with the column 15, and the beam 17 is brought into contact with the column 15, and the first bolt insertion hole 18 and the second bolt insertion hole 19
Then, as shown in FIG. 8, the nut 1 and the bolt 20 are screwed into each other.
4. The pillar 15, the beam 16, and the beam 17 can be temporarily fixed (a side view showing a state where the beam 17 and the pillar 15 are joined is omitted). Further, a beam is provided as a fifth structural member, and the beam, which is the fifth structural member, is abutted on the column 15 and is arranged so as to be orthogonal to the first structural member group, and a beam 17 (fourth structural member) A second bolt insertion hole 19 may be provided so as to obliquely penetrate through the first bolt insertion hole 18 and the column 15 (second structural member) and the fifth structural member. The bolt 20 is provided with an adhesive injection hole as described below.

FIG. 9 shows that the bolt 2 is inserted into the first bolt insertion hole 18.
0 is a cross-sectional view showing, in an enlarged manner, a state in which the first adhesive injection hole 22 is inserted from the outer end face of the bolt 20 in parallel with the longitudinal direction of the bolt 20. The bolt 20 is drilled near the other end.
A second adhesive injection hole 23 is provided to penetrate the bolt 20 in the radial direction so as to be orthogonal to the first adhesive injection hole 22. Reference numeral 24 denotes an air vent hole, which is formed from a portion facing the first bolt insertion hole 18 toward the outer peripheral side of the beam 16. FIG. 10 shows a case where one of the nuts in FIG. 9 is replaced with a cap nut 21a.
Penetrates the bolt 20.

After the beams 14, the columns 15, the beams 16, and the beams 17 are temporarily fixed by the bolts 20 having the adhesive injection holes as described above, the adhesive is inserted into the first and second adhesive injection holes. , The structural members can be joined firmly.

[0053]

As described above, the present invention has the following advantages. (1) According to the first aspect of the present invention, a temporary fixing can be performed by inserting a bolt into the bolt insertion hole and screwing the bolt with the embedding nut and the nut arranged on the nut seat. Since the strength can be ensured, the next operation can be performed safely. Also, no special member or work for temporary fixing is required. With respect to the shearing force, the joining strength can be improved by the shearing force held by the bolt in addition to the shearing force borne by the structural member.
Furthermore, since a chemical bonding force due to the adhesive force of the adhesive is added to the mechanical bonding force due to the combination of the bolt and the nut, the bonding strength is greatly improved as compared with the conventional bonding structure. Since the two structural members are in close contact with each other by screwing the bolt and the embedded nut, the adhesive does not leak from the joint when the adhesive is injected, and the adhesive needs to spread over the entire outer periphery of the bolt. Because there is no
As compared with the conventional adhesive injection method, the amount of adhesive injected is small, and the amount of work is reduced accordingly. Since the two structural members are temporarily connected by the mechanical connection of the bolt and nut,
The injection of the adhesive may be performed at an appropriate time in accordance with the progress of the entire construction, and the best construction procedure in terms of process management can be established. (2) According to the second and sixth aspects of the present invention, since the excess air contained in the adhesive is discharged to the outside through the air vent hole, there is no problem in injecting the adhesive. Further, it can be used as a means for estimating that a sufficient amount of the adhesive is filled inside by confirming that the adhesive overflows from the air vent hole.

(3) According to the third and seventh aspects of the present invention,
Since the adhesive spreads evenly on the entire outer peripheral surface of the bolt,
Strong adhesion can be obtained. (4) According to the fourth aspect of the present invention, the bolt can be temporarily fixed only by screwing the bolt into the embedding nut, abutting the two structural members, and tightening the nut arranged on the nut seat. It is safe and easy to construct in a short time. By fixing the embedded nut to the structural member at the factory, it becomes possible to fix the nut more securely than performing the fixing work on site. (5) According to the invention as set forth in claim 5, a load applied from the left and right or up and down generated by pulling, shearing, compressing, and bending of the joint caused by horizontal force such as earthquake, wind or the like is applied to the first bolt insertion hole and the second bolt insertion hole. It acts so as to be canceled by the couple of the bolt inserted into the bolt insertion hole, and the rigidity can be increased.
Then, by bonding with an adhesive, the strength of the joint can be further increased.

(6) According to the invention of claim 8, the first bolt insertion hole penetrating the first structural member group and the second bolt insertion hole penetrating the second structural member and the fourth structural member. Since the bolts can be temporarily fixed only by inserting the bolts and screwing the bolts and nuts together, the working process can be extremely simplified, and the number of working steps can be significantly reduced. Then, it is possible to assemble the respective structural members safely and in order, and to perform the bonding operation at an appropriate time.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of one embodiment of a bonding structure according to the present invention.

FIG. 2 is a sectional view of another embodiment of the joint structure of the present invention.

FIG. 3 is a perspective view of FIG. 2;

FIG. 4 is a diagram illustrating a bolt insertion direction.

FIG. 5 is a sectional view of still another embodiment of the joint structure of the present invention.

FIG. 6 is an exploded perspective view of still another embodiment of the joint structure of the present invention.

FIG. 7 is a cross-sectional view excluding bolts when joined by the joining structure of FIG. 6;

FIG. 8 is a front view of a case where the bonding is performed by the bonding structure of FIG. 6;

FIG. 9 is an enlarged cross-sectional view of a case where the bonding is performed by the bonding structure of FIG. 6;

FIG. 10 is an enlarged cross-sectional view of another embodiment when joined by the joining structure of FIG. 6;

FIG. 11 is an exploded perspective view of a joining structure of structural members of a conventional wooden building.

FIG. 12 is an exploded perspective view of a conventional joining structure of structural members of another wooden building.

[Explanation of symbols]

 1, 15: pillar 2, 14, 16, 17: beam 4: bolt insertion hole 5, 5a: embedded nut hole 6, 6a: embedded nut 7, 20: bolt 8, 22 ... first adhesive injection hole 9, 23 ... second adhesive injection hole 10 ... nut seat 11 ... washer 12, 21 ... nut 13, 24 ... air vent hole 18 ... first bolt insertion hole 19 ... second bolt insertion hole 21a ... cap nut

Claims (8)

[Claims] 1. A joining structure of two structural members forming a wooden building, wherein an end surface of one structural member is brought into contact with an end surface of another structural member, and one structural member is horizontally or obliquely connected. One or more bolt insertion holes are formed so as to penetrate in the same direction, and an embedded nut hole is formed in the other structural member so as to communicate with the bolt insertion hole and to be in the same direction as the bolt insertion hole. A nut seat was formed in the bolt insertion hole portion on the outer peripheral side of the structural member, the embedded nut was fixed in the embedded nut hole, the bolt inserted in the bolt insertion hole was screwed into the embedded nut, and arranged on the nut seat. A nut is screwed into the bolt, an adhesive injection hole is formed so as to pass through the bolt from the outer end surface of the bolt to the bolt side surface, and inject the adhesive into the adhesive injection hole, One structure A joining structure of a structural member of a wooden building, which is characterized by joining a material and another structural member. 2. One or more air vent holes are provided so as to reach the outer peripheral side of one structural member from the side facing the bolt insertion hole or the other structural member facing the embedded nut hole. The joining structure of a structural member of a wooden building according to claim 1, characterized in that: 3. A first adhesive injection hole formed from an outer end surface of the bolt in parallel with the longitudinal direction of the bolt, an adhesive injection hole communicating with the first adhesive injection hole, and a first adhesive. The joining structure of a structural member of a wooden building according to claim 1, further comprising a second adhesive injection hole provided to be orthogonal to the agent injection hole. 4. A method of joining two structural members forming a wooden building, wherein one or more bolt insertion holes are formed so as to penetrate one of the structural members in a horizontal direction or an oblique direction, and the other is formed. An embedded nut is fixed in an embedded nut hole formed in the structural member so as to communicate with the bolt insertion hole and to be in the same direction as the bolt insertion hole, and the end surface of one structural member is connected to the end surface of the other structural member. The bolt is inserted into the bolt insertion hole of one structural member, screwed into the embedded nut, and a nut is arranged on a nut seat formed at the bolt insertion hole portion on the outer peripheral side of the one structural member. And joining the one structural member and the other structural member by injecting an adhesive into an adhesive injection hole formed so as to pass through the inside of the bolt from the outer end surface of the bolt to reach the side surface of the bolt. Specially The method of joining structural members of wooden buildings to be characterized. 5. A structural member of a first structural member group consisting of first, second and third structural members forming a wooden building is brought into contact with each other and arranged in the same direction in this order. The first structural member group is disposed so as to be orthogonal to the first structural member group and is brought into contact with the second structural member, and the first bolt insertion hole is obliquely penetrated through all the structural members of the first structural member group. Forming a second bolt insertion hole which does not interfere with the first bolt insertion hole and penetrates through the fourth structural member and the second structural member obliquely with respect to the first bolt insertion hole, A bolt is inserted into each of the one bolt insertion hole and the second bolt insertion hole and screwed with a nut, and an adhesive injection hole is formed so as to pass through the inside of the bolt from the outer end surface of the bolt and reach the side surface of the bolt, By injecting the adhesive into the adhesive injection hole,
A joining structure for a structural member of a wooden building, wherein the first structural member group and the fourth structural member are joined. 6. The structure member of the first, second or third structural member from the side facing the first bolt insertion hole and the second or fourth structural member from the side facing the second bolt insertion hole. The joint structure for a structural member of a wooden building according to claim 5, wherein one or more air vent holes are provided so as to reach an outer peripheral side. 7. A first adhesive injection hole formed in parallel with a longitudinal direction of the bolt from an outer end surface of the bolt, the adhesive injection hole communicating with the first adhesive injection hole, and a first adhesive. 7. The joining structure for a structural member of a wooden building according to claim 5, further comprising a second adhesive injection hole provided so as to be orthogonal to the agent injection hole. 8. A structural member of a first structural member group consisting of first, second and third structural members forming a wooden building is brought into contact with each other and arranged in the same direction in this order. The first structural member group is disposed so as to be orthogonal to the first structural member group and is brought into contact with the second structural member, and the first bolt insertion hole is obliquely penetrated through all the structural members of the first structural member group. Forming a second bolt insertion hole which does not interfere with the first bolt insertion hole and penetrates through the fourth structural member and the second structural member obliquely with respect to the first bolt insertion hole, A bolt is inserted into each of the one bolt insertion hole and the second bolt insertion hole, and after the bolts are inserted, the above bolts and nuts are screwed together, and formed so as to pass through the inside of the bolt from the outer end surface of the bolt and reach the side surface of the bolt. Injecting the adhesive into the adhesive injection hole A method for joining structural members of a wooden building, comprising joining a group of materials and a fourth structural member.