JP7413634B2 - Wooden horizontal member joint structure - Google Patents

Description

The present invention relates to a wooden horizontal member joining structure.

A joint structure is known in which a hollow joint reinforcing material is inserted into a mortise in a wooden base, and the tenons of a column and a bundle are respectively inserted into the upper and lower parts of the hollow joint reinforcing material (for example, Patent Document (see 1).

Furthermore, a joining structure is known in which an adhesive is filled into a gap between a mortise of a pillar and a tenon of a beam inserted into the mortise (for example, see Patent Document 2).

Japanese Patent Application Publication No. 5-287817 Japanese Patent Application Publication No. 10-280556

In the technology disclosed in Patent Document 1, the tenons of the bundle and the pillar are lengthened and the tenons of the bundle and the pillar are brought into contact with each other at the center of the hollow joint reinforcing material. This prevents the pillar from sinking into the upper surface of the member.

However, if the tenon of the upper member such as a column is lengthened, it becomes difficult to insert the tenon into the mortise of the horizontal wooden member, which may reduce workability.

The present invention takes the above-mentioned facts into consideration and aims to improve workability while suppressing the upper member from sinking into the upper surface of the wooden horizontal member.

The wooden horizontal member joining structure according to the first aspect has a lower member and an upper mortise that opens the upper surface, and the wooden horizontal member placed on the lower member and the upper mortise. It includes an upper member having an upper tenon portion to be inserted, and an axial force transmitting member interposed between the lower member and the upper tenon portion and having higher compression rigidity in the vertical direction than the wooden horizontal member.

According to the wooden horizontal member joining structure according to the first aspect , the wooden horizontal member is placed on the lower member. This wooden horizontal member has an upper mortise that opens the upper surface of the wooden horizontal member. The upper tenon of the upper member is inserted into this upper mortise.

Here, an axial force transmission member having higher compression rigidity in the vertical direction than the wooden horizontal member is interposed between the lower member and the upper tenon. Thereby, the vertical load of the upper member is transmitted to the lower member via the upper tenon and the axial force transmission member. As a result, the vertical load acting on the upper surface of the wooden horizontal member from the upper member is reduced. Therefore, the upper member is prevented from sinking into the upper surface of the wooden horizontal member.

Furthermore, by interposing the axial force transmitting member between the lower member and the upper tenon, the upper tenon can be made shorter than when the upper tenon is brought into direct contact with the lower member. Therefore, the upper tenon part can be easily inserted into the upper mortise, and workability is improved.

As described above, in the present invention, workability can be improved while suppressing the upper member from sinking into the upper surface of the wooden horizontal member.

A wooden horizontal member joining structure according to a second aspect is the wooden horizontal member joining structure according to the first aspect , in which the wooden horizontal member is arranged below the upper mortise, and the lower surface of the wooden horizontal member is opened. The lower member has a lower tenon that is inserted into the lower tenon, and the axial force transmission member has a lower tenon that is connected to the lower tenon and the upper tenon. be interposed between.

According to the wooden horizontal member joining structure according to the second aspect , the wooden horizontal member has a lower mortise that is disposed below the upper mortise and opens the lower surface of the wooden horizontal member. The lower tenon of the lower member is inserted into this lower mortise.

Here, an axial force transmission member is interposed between the lower tenon and the upper tenon. Thereby, the vertical load of the upper member is transmitted to the lower member via the upper tenon, the axial force transmission member, and the lower tenon. As a result, the vertical load acting on the upper surface of the wooden horizontal member from the upper member is reduced, and the vertical load acting on the lower surface of the wooden horizontal member from the lower member is reduced.

Therefore, the upper member is prevented from sinking into the upper surface of the wooden horizontal member, and the lower member is prevented from sinking into the lower surface of the wooden horizontal member.

In addition, by interposing the axial force transmitting member between the upper surface of the lower tenon and the lower surface of the upper tenon, compared to the case where the upper surface of the lower tenon and the lower surface of the upper tenon are brought into direct contact, , the lower tenon and the upper tenon can be shortened. Therefore, the upper tenon part becomes easier to insert into the upper mortise, and the lower tenon part becomes easier to insert into the lower mortise, improving workability.

As described above, in the present invention, workability can be improved while suppressing the upper member from sinking into the upper surface of the wooden horizontal member and the lower member from sinking into the lower surface of the wooden horizontal member.

A wooden horizontal member joining structure according to a third aspect is a wooden horizontal member joining structure according to the second aspect , in which the axial force transmitting member is arranged in a connecting hole connecting the lower mortise and the upper mortise. be done.

According to the wooden horizontal member joining structure according to the third aspect , the axial force transmitting member is arranged in the connection hole that connects the lower mortise and the upper mortise of the wooden horizontal member. Thereby, the axial force transmission member can be easily interposed between the lower tenon and the upper tenon. Therefore, the workability of the axial force transmission member is improved.

The wooden horizontal member joining structure according to a fourth aspect is the wooden horizontal member joining structure according to the second aspect , wherein the wooden horizontal member has a partition part separating the lower mortise and the upper mortise. The axial force transmission member is provided at the partition wall.

According to the wooden horizontal member joining structure according to the fourth aspect , the wooden horizontal member has a partition portion that separates the lower mortise and the upper mortise. An axial force transmitting member is provided in this partition portion. That is, in the present invention, the partition wall portion is reinforced (stiffened) by the axial force transmission member.

By reinforcing the partition wall portion with the axial force transmitting member in this manner, workability can be improved while suppressing the lower and upper members from sinking into the wooden horizontal member.

A wooden horizontal member joining structure according to a fifth aspect is a wooden horizontal member joining structure according to any one of the first to fourth aspects , in which the upper tenon is connected to the lower side through the axial force transmitting member. Supported by the member.

According to the wooden horizontal member joining structure according to the fifth aspect , the upper tenon of the upper member is supported by the lower member via the axial force transmitting member. Thereby, the vertical load of the upper member is transmitted to the lower member via the upper tenon and the axial force transmission member. Therefore, it is possible to more reliably suppress the upper member from sinking into the upper surface of the wooden horizontal member.

As explained above, according to the present invention, workability can be improved while suppressing the upper member from sinking into the upper surface of the wooden horizontal member.

It is an exploded perspective view showing a wooden beam, a lower wooden column, and an upper wooden column to which the wooden horizontal member joining structure according to the first embodiment is applied. FIG. 2 is an elevational sectional view showing a wooden beam, a lower wooden column, and an upper wooden column shown in FIG. 1. FIG. FIG. 3 is an elevational sectional view showing the construction process of the wooden beam, lower wooden column, and upper wooden column shown in FIG. 2; FIG. 3 is an elevational sectional view corresponding to FIG. 2 showing a wooden beam, a lower wooden column, and an upper wooden column to which the wooden horizontal member joining structure according to the second embodiment is applied. FIG. 5 is an elevational sectional view showing the construction process of the wooden beam, lower wooden column, and upper wooden column shown in FIG. 4; FIG. 3 is an elevational sectional view corresponding to FIG. 2 showing a wooden beam, a lower wooden column, and an upper wooden column to which the wooden horizontal member joining structure according to the third embodiment is applied.

(First embodiment)
First, a first embodiment will be described.

(Wooden horizontal member joint structure)
FIG. 1 shows a wooden beam 10, a lower wooden column 20, and an upper wooden column 30 to which the wooden horizontal member joining structure according to the first embodiment is applied. These wooden beams 10, lower wooden columns 20, and upper wooden columns 30 are used, for example, in traditional wooden buildings. Note that the wooden beam 10 is an example of a horizontal wooden member. Further, the lower wooden pillar 20 is an example of a lower member, and the upper wooden pillar 30 is an example of an upper member.

(wooden beam)
The wooden beam 10 is made of a wooden material such as solid wood, laminated wood, or LVL, and is installed on a pair of pillars (not shown). Further, the cross-sectional shape of the wooden beam 10 is rectangular. A mortise hole 12 is formed in this wooden beam 10, passing through the wooden beam 10 in the vertical direction. The mortise 12 is a rectangular through hole.

As shown in FIG. 2, the mortise 12 has a lower mortise 14, a connecting hole 16, and an upper mortise 18. In other words, in this embodiment, the mortise 12 is functionally divided into three regions: the lower mortise 14, the connecting hole 16, and the upper mortise 18.

The lower mortise 14 is formed on the lower surface 10L side of the wooden beam 10, and opens the lower surface 10L of the wooden beam 10. A connecting hole 16 and an upper mortise 18 are arranged above the lower mortise 14 . Note that a lower tenon portion 24 of a lower wooden post 20, which will be described later, is inserted into the lower mortise 14.

The upper mortise 18 is arranged on the upper surface 10U side of the wooden beam 10, and opens the upper surface 10U of the wooden beam 10. This upper mortise 18 is connected to the lower mortise 14 via the connecting hole 16. Note that an upper tenon portion 34 of an upper wooden post 30, which will be described later, is inserted into the upper mortise 18.

The connecting hole 16 is arranged between the lower mortise 14 and the upper mortise 18 and communicates with the lower mortise 14 and the upper mortise 18, respectively. An axial force transmission member 40, which will be described later, is arranged in this connection hole 16.

(Lower wood pillar)
As shown in FIGS. 1 and 2, the lower wooden column 20 is a wooden column made of a wooden material such as solid wood, laminated wood, or LVL. Further, the lower wooden pillar 20 is, for example, a pipe pillar, and is arranged below the wooden beam 10. The lower wooden column 20 has a column main body portion 22 and a lower tenon portion 24.

The cross-sectional shape of the column main body portion 22 is rectangular. A lower tenon portion 24 is provided on the upper surface 22U of this pillar body portion 22. The lower tenon portion 24 projects upward from the center of the upper surface 22U of the column main body portion 22 in a projecting shape.

The cross-sectional shape of the lower mortise portion 24 is a rectangular shape similar to the lower mortise 14 of the wooden beam 10. The lower wooden column 20 is joined to the wooden beam 10 by fitting the lower tenon part 24 into the lower mortise 14. Note that the gap between the upper tenon portion 34 and the upper mortise 18 may be filled with an adhesive or the like. Further, on the upper surface 24U of the lower tenon portion 24, an axial force transmission member 40, which will be described later, is placed.

(Upper wood pillar)
The upper wooden pillar 30 is a wooden pillar formed of a wooden material such as solid wood, laminated wood, or LVL. Further, the upper wooden pillar 30 is, for example, a pipe pillar, and is arranged above the wooden beam 10. Further, the upper wooden column 30 is arranged above the lower wooden column 20 so as to be continuous with the lower wooden column 20 in the vertical direction. The upper wooden pillar 30 has a pillar main body part 32 and an upper tenon part 34.

The cross-sectional shape of the column main body portion 32 is rectangular. An upper tenon portion 34 is provided on the lower surface 32L of this pillar body portion 32. The upper tenon portion 34 projects downward from the center of the lower surface 32L of the column main body portion 32 in a protruding shape.

The cross-sectional shape of the upper tenon portion 34 is a rectangular shape similar to the upper tenon 18 of the wooden beam 10. The upper wooden pillar 30 is joined to the wooden beam 10 by fitting the upper tenon part 34 into the upper mortise 18. Further, the upper tenon portion 34 is supported by the lower tenon portion 24 via an axial force transmission member 40. Note that the gap between the upper tenon portion 34 and the upper mortise 18 may be filled with an adhesive or the like.

(Axial force transmission member)
The axial force transmission member 40 is a member that transmits the vertical load N of the upper wooden column 30 to the lower wooden column 20. The axial force transmitting member 40 is made of a wood material, metal, resin, or a hardened material such as concrete, mortar, or grout, which has higher vertical compression rigidity than the wood beam 10.

The axial force transmission member 40 is formed into a rectangular parallelepiped shape. Further, the cross-sectional shape of the axial force transmission member 40 is a rectangular shape similar to the connection hole 16 of the wooden beam 10. This axial force transmission member 40 is fitted into the connection hole 16 and is interposed between the lower surface 34L of the upper tenon 34 and the upper surface 24U of the lower tenon 24.

The lower surface 40L of the axial force transmission member 40 is placed on (in contact with) the upper surface 24U of the lower tenon portion 24. Furthermore, the lower surface 34L of the upper tenon portion 34 is placed (in contact) on the upper surface 40U of the axial force transmission member 40. That is, the upper tenon part 34 is placed on the lower tenon part 24 via the axial force transmission member 40. As a result, the vertical load N of the upper wooden column 30 is transmitted to the lower wooden column 20 via the upper tenon 34, the axial force transmission member 40, and the lower tenon 24.

(Construction method of wooden horizontal member joint structure)
Next , an example of a construction method for a wooden horizontal member joining structure will be described.

As shown in FIG. 3, first, the lower tenon part 24 of the lower wooden post 20 is fitted into the lower mortise 14 of the wooden beam 10. Next, the axial force transmitting member 40 is fitted into the connection hole 16 from the upper mortise 18 of the wooden beam 10.

Next, the upper tenon 34 of the upper wooden column 30 is fitted into the upper mortise 18 of the wooden beam 10, and the axial force transmission member 40 is sandwiched between the upper tenon 34 and the lower tenon 24. Thereby, the upper tenon part 34 is supported by the lower tenon part 24 via the axial force transmission member 40.

In this embodiment, the axial force transmission member 40 is inserted into the connection hole 16 from the upper mortise 18 of the wooden beam 10. However, the axial force transmission member 40 may be inserted into the connection hole 16 through the lower mortise 14 of the wooden beam 10.

Further, in this embodiment, after the lower tenon part 24 was inserted into the lower mortise 14 of the wooden beam 10, the upper tenon part 34 was inserted into the upper mortise 18 of the wooden beam 10. However, on the contrary, after the upper tenon part 34 is inserted into the upper mortise 18 of the wooden beam 10, the lower tenon part 24 may be fitted into the lower mortise 14 of the wooden beam 10.

In addition, the axial force transmitting member 40 is fitted into the connection hole 16 of the wooden beam 10 in advance, and in this state, the lower tenon 24 and the upper tenon are inserted into the lower mortise 14 and upper mortise 18 of the wooden beam 10. The sections 34 may be inserted respectively.

(effect)
Next, the operation of the first embodiment will be explained.

As shown in FIG. 2, according to this embodiment, the wooden beam 10 has a lower mortise 14 and an upper mortise 18. The lower mortise 14 opens the lower surface 10L of the wooden beam 10. The lower tenon portion 24 of the lower wooden post 20 is fitted into the lower mortise 14.

On the other hand, the upper mortise 18 is arranged above the lower mortise 14 and opens the upper surface 10U of the wooden beam 10. The upper tenon portion 34 of the upper wooden post 30 is fitted into the upper mortise 18.

Here, between the lower tenon part 24 of the lower wooden pillar 20 and the upper tenon part 34 of the upper wooden pillar 30, an axial force transmission member 40 having higher compression rigidity in the vertical direction than the wooden beam 10 is interposed. has been done. The upper tenon section 34 of the upper wooden column 30 is supported by the lower tenon section 24 of the lower wooden column 20 via this axial force transmission member 40 .

As a result, the vertical load N of the upper wooden column 30 is transmitted to the lower wooden column 20 via the upper tenon 34, the axial force transmission member 40, and the lower tenon 24. As a result, the vertical load N acting from the lower surface 32L of the upper wooden column 30 to the upper surface 10U of the wooden beam 10 is reduced, and the vertical load N acting from the upper surface 22U of the lower wooden column 20 to the lower surface 10L of the wooden beam 10 is reduced. is reduced.

Therefore, the lower surface 32L of the upper wooden column 30 is prevented from sinking into the upper surface 10U of the wooden beam 10, and the upper surface 22U of the lower wooden column 20 is prevented from sinking into the lower surface 10L of the wooden beam 10.

Moreover, by interposing the axial force transmission member 40 between the upper surface 24U of the lower tenon part 24 and the lower surface 34L of the upper tenon part 34, the upper surface 24U of the lower tenon part 24 and the lower surface 34L of the upper tenon part 34 The lower tenon part 24 and the upper tenon part 34 can be made shorter than in the case where they are in direct contact with each other. Therefore, the lower tenon part 24 can be easily inserted into the lower mortise 14, and the upper tenon part 34 can be easily inserted into the upper mortise 18, so that workability is improved.

In this manner, in this embodiment, workability can be improved while suppressing the sinking of the lower surface 32L of the upper wooden column 30 and the upper surface 22U of the lower wooden column 20 into the upper surface 10U and lower surface 10L of the wooden beam 10.

Furthermore, as described above, by shortening the lower tenon part 24 and the upper tenon part 34, for example, when horizontal force acts on the upper wooden column 30 or the lower wooden column 20 during an earthquake, the lower tenon part 24 and the upper tenon part 34 can be shortened. The bases of the portion 24 and the upper tenon portion 34 are less likely to break. Therefore, it is possible to suppress the bending of the roots of the lower tenon part 24 and the upper tenon part 34 during an earthquake.

Furthermore, in this embodiment, the axial force transmission member 40 is arranged in the connection hole 16 that connects the lower mortise 14 and the upper mortise 18 of the wooden beam 10. Thereby, the axial force transmission member 40 can be easily interposed between the lower tenon part 24 and the upper tenon part 34. Therefore, the workability of the axial force transmission member 40 is improved.

(Second embodiment)
Next, a second embodiment will be described. In addition, in the second embodiment, members having the same configuration as those in the first embodiment are given the same reference numerals, and description thereof will be omitted as appropriate.

4 and 5 show a wooden beam 10, a lower wooden column 20, and an upper wooden column 30 to which the wooden horizontal member joining structure according to the present embodiment is applied.

(wooden beam)
A lower mortise 14 is formed in the lower surface 10L of the wooden beam 10. The lower mortise 14 is a rectangular hole having a bottom surface 14A, and is open to the lower surface 10L of the wooden beam 10. Further, an upper mortise 18 is arranged above the lower mortise 14. The lower tenon portion 24 of the lower wooden post 20 is inserted (fitted) into the lower mortise 14 .

The upper mortise 18 is formed in the upper surface 10U of the wooden beam 10. Further, the upper mortise 18 is a rectangular hole having a bottom surface 18A, and opens the upper surface 10U of the wooden beam 10. Further, the upper tenon portion 34 of the upper wooden post 30 is inserted (fitted) into the upper mortise 18 . A wooden partition wall 50 is arranged between the upper mortise 18 and the lower mortise 14.

The partition wall portion 50 is a part of the wooden beam 10 remaining between the lower mortise 14 and the upper mortise 18, and separates the lower mortise 14 and the upper mortise 18. A plurality of through holes 52 are formed in this partition wall portion 50 . The plurality of through holes 52 are circular holes that vertically penetrate the partition wall 50 . An axial force transmitting member 60 is provided in each of these through holes 52 .

(Axial force transmission member)
The axial force transmission member 60 is a member that transmits the vertical load N of the upper wooden column 30 to the lower wooden column 20. The axial force transmitting member 60 is made of metal, resin, or a hardened material such as concrete, mortar, and grout, which has higher compressive rigidity in the vertical direction than the wooden beam 10.

The plurality of axial force transmitting members 60 are formed in a cylindrical shape (pin shape). Further, the plurality of axial force transmitting members 60 are inserted (fitted) into the plurality of through holes 52 formed in the partition wall portion 50, respectively. The partition wall portion 50 is reinforced (stiffened) by these axial force transmission members 60.

The lower end portions of the plurality of axial force transmission members 60 are in contact with the upper surface 24U of the lower tenon portion 24, respectively. Further, the upper end portions of the plurality of axial force transmitting members 60 are in contact with the lower surface 34L of the upper tenon portion 34, respectively. That is, the lower surface 34L of the upper tenon 34 is placed on the upper surface 24U of the lower tenon 24 via the plurality of axial force transmitting members 60.

By interposing the plurality of axial force transmitting members 60 between the lower tenon part 24 and the upper tenon part 34 in this way, the upper tenon part 34 is transmitted to the lower tenon part 24 through the plurality of axial force transmitting members 60. is supported by Thereby, the vertical load N of the upper wooden column 30 is transmitted to the lower wooden column 20 via the upper tenon 34, the plurality of axial force transmitting members 40, and the lower tenon 24.

(Construction method of wooden horizontal member joint structure)
Next , an example of a construction method for a wooden horizontal member joining structure will be described.

As shown in FIG. 5, the axial force transmitting member 60 is fitted into each through hole 52 of the partition wall 50 from the upper mortise 18 of the wooden beam 10. Next, the lower tenon part 24 of the lower wooden post 20 is fitted into the lower mortise 14 of the wooden beam 10.

Next, the upper tenon 34 of the upper wooden column 30 is fitted into the upper mortise 18 of the wooden beam 10, and the plurality of axial force transmitting members 60 are sandwiched between the upper tenon 34 and the lower tenon 24. Thereby, the upper tenon part 34 is supported by the lower tenon part 24 via the plurality of axial force transmitting members 60.

In addition, each process of the construction method of the above-mentioned wooden horizontal member joint structure may be replaced as appropriate. Therefore, for example, after the lower tenon part 24 of the lower wooden column 20 is fitted into the lower tenon 14 of the wooden beam 10, the axial force transmission member 60 may be fitted into each through hole 52 of the partition part 50. .

(effect)
Next, the operation of the second embodiment will be explained.

According to this embodiment, the wooden beam 10 has a partition wall portion 50 that separates the lower mortise 14 and the upper mortise 18 . The partition wall portion 50 is provided with a plurality of axial force transmitting members 60 having higher compressive rigidity in the vertical direction than the wooden beam 10. That is, in this embodiment, the partition wall portion 50 is reinforced (stiffened) by the plurality of axial force transmission members 60.

Here, the plurality of axial force transmitting members 60 described above are interposed between the lower tenon section 24 of the lower wooden column 20 and the upper tenon section 34 of the upper wooden column 30. The upper tenon section 34 of the upper wooden column 30 is supported by the lower tenon section 24 of the lower wooden column 20 via these axial force transmission members 60 .

As a result, the vertical load N of the upper wooden column 30 is transmitted to the lower wooden column 20 via the upper tenon 34, the plurality of axial force transmitting members 60, and the lower tenon 24. As a result, the vertical load N acting from the lower surface 32L of the upper wooden column 30 to the upper surface 10U of the wooden beam 10 is reduced, and the vertical load N acting from the upper surface 22U of the lower wooden column 20 to the lower surface 10L of the wooden beam 10 is reduced. is reduced.

Therefore, the upper wooden pillar 30 is prevented from sinking into the upper surface 10U of the wooden beam 10, and the lower wooden pillar 20 is prevented from sinking into the lower surface 10L of the wooden beam 10.

Moreover, by interposing the axial force transmission member 60 between the upper surface 24U of the lower tenon part 24 and the lower surface 34L of the upper tenon part 34, the upper surface 24U of the lower tenon part 24 and the lower surface 34L of the upper tenon part 34 The lower tenon part 24 and the upper tenon part 34 can be made shorter than in the case where they are in direct contact with each other. Therefore, the lower tenon part 24 can be easily inserted into the lower mortise 14, and the upper tenon part 34 can be easily inserted into the upper mortise 18, so that workability is improved.

In this manner, in this embodiment, workability is improved while suppressing the sinking of the lower surface 32L of the upper wooden column 30 and the upper surface 22U of the lower wooden column 20 into the upper surface 10U and lower surface 10L of the wooden beam 10.

Furthermore, as described above, by shortening the lower tenon part 24 and the upper tenon part 34, for example, when horizontal force acts on the upper wooden column 30 or the lower wooden column 20 during an earthquake, the lower tenon part 24 and the upper tenon part 34 can be shortened. The bases of the portion 24 and the upper tenon portion 34 are less likely to break. Therefore, it is possible to suppress the bending of the roots of the lower tenon part 24 and the upper tenon part 34 during an earthquake.

Furthermore, in this embodiment, by reinforcing the partition wall portion 50 with a plurality of axial force transmitting members 60, the axial force transmitting member 60 can be easily interposed between the lower tenon portion 24 and the upper tenon portion 34. Can be done. Therefore, the workability of the plurality of axial force transmitting members 60 is improved.

In addition, in this embodiment, the axial force transmission member 60 is formed by a cylindrical rod-shaped member. However, the axial force transmission member may be formed of a rod-like member such as a prismatic member, for example. Further, the number and arrangement of the axial force transmitting members 60 can be changed as appropriate.

(Third embodiment)
Next, a third embodiment will be described.

(Wooden horizontal member joint structure)
FIG. 6 shows a foundation 70, a wooden beam 10, and an upper wooden column 30 to which the wooden horizontal member joining structure according to the third embodiment is applied. Note that the foundation 70 is an example of a lower member.

(Basics)
The foundation 70 is, for example, a reinforced concrete foundation beam or foundation slab. A wooden beam 10 is placed on this foundation 70.

(wooden beam)
An upper mortise 18 is formed in the upper surface 10U of the wooden beam 10. The upper mortise 18 is arranged on the upper surface 10U side of the wooden beam 10. Furthermore, a communication hole 80 communicating with the upper mortise 18 is formed in the lower surface 10L of the wooden beam 10.

The communication hole 80 is a rectangular hole extending between the upper mortise 18 and the lower surface 10L of the wooden beam 10, and is open to the lower surface 10L of the wooden beam 10. An axial force transmission member 90 is arranged in this communication hole 80. Note that the cross-sectional shape and size of the communication hole 80 may be the same as or different from the upper mortise 18.

(Axial force transmission member)
The axial force transmission member 90 is a member that transmits the vertical load N of the upper wooden column 30 to the foundation 70. The axial force transmitting member 90 is made of a wood material, metal, resin, or a hardened material such as concrete, mortar, or grout, which has higher compressive rigidity in the vertical direction than the wood beam 10.

The axial force transmission member 90 is formed into a rectangular parallelepiped shape. Further, the cross-sectional shape of the axial force transmission member 90 is a rectangular shape similar to the communication hole 80 of the wooden beam 10. This axial force transmission member 90 is fitted into the communication hole 80 and is interposed between the upper surface 70U of the foundation 70 and the lower surface 34L of the upper tenon portion 34.

The lower surface 90L of the axial force transmission member 90 is placed on (in contact with) the upper surface 70U of the foundation 70. Furthermore, the lower surface 34L of the upper tenon portion 34 is placed (in contact) on the upper surface 90U of the axial force transmission member 90. That is, the upper tenon portion 34 is placed on the foundation 70 via the axial force transmission member 90. Thereby, the vertical load N of the upper wooden column 30 is transmitted to the foundation 70 via the upper tenon part 34 and the axial force transmission member 90.

(Construction method of wooden horizontal member joint structure)
Next , an example of a construction method for a wooden horizontal member joining structure will be described.

As shown in FIG. 6, first, the wooden beam 10 is placed on the upper surface 70U of the foundation 70. Next, the axial force transmitting member 90 is fitted into the communication hole 80 from the upper mortise 18 of the wooden beam 10, and the axial force transmitting member 90 is placed on the upper surface 70U of the foundation 70.

Next, the upper tenon 34 of the upper wooden column 30 is fitted into the upper mortise 18 of the wooden beam 10, and the axial force transmission member 90 is sandwiched between the upper tenon 34 and the foundation 70. Thereby, the upper tenon portion 34 is supported by the foundation 70 via the axial force transmission member 90.

In this embodiment, after the wooden beam 10 was placed on the foundation 70, the axial force transmission member 90 was fitted into the communication hole 80 of the wooden beam 10. However, the wooden beam 10 may be placed on the foundation 70 after the axial force transmission member 90 is fitted into the communication hole 80 of the wooden beam 10. At this time, the axial force transmission member 90 may be inserted into the communication hole 80 from the lower surface 10L side of the wooden beam 10.

(effect)
Next, the operation of the third embodiment will be explained.

As shown in FIG. 6, according to this embodiment, the wooden beam 10 has an upper mortise 18 and a communication hole 80. The upper tenon 34 of the upper wooden post 30 is fitted into the upper mortise 18. A communicating hole 80 is arranged below this upper mortise 18.

The communication hole 80 communicates with the upper mortise 18 and opens the lower surface 10L of the wooden beam 10. An axial force transmission member 90 is fitted into this communication hole 80.

Here, an axial force transmitting member 90 having higher compression rigidity in the vertical direction than the wooden beam 10 is interposed between the foundation 70 and the upper tenon part 34 of the upper wooden column 30. The upper tenon portion 34 of the upper wooden column 30 is supported by the foundation 70 via this axial force transmission member 90.

Thereby, the vertical load N of the upper wooden column 30 is transmitted to the foundation 70 via the upper tenon part 34 and the axial force transmission member 90. As a result, the vertical load N acting from the lower surface 32L of the upper wooden column 30 to the upper surface 10U of the wooden beam 10 is reduced. Therefore, sinking of the lower surface 32L of the upper wooden column 30 into the upper surface 10U of the wooden beam 10 is suppressed.

In addition, by interposing the axial force transmitting member 90 between the lower surface 34L of the upper tenon 34 and the upper surface 70U of the foundation 70, a comparison is made with the case where the lower surface 34L of the upper tenon 34 is brought into direct contact with the upper surface 70U of the foundation 70. Thus, the upper tenon portion 34 can be shortened. Therefore, the upper tenon part 34 can be easily inserted into the upper mortise hole 18, so that workability is improved.

In this manner, in this embodiment, workability can be improved while suppressing the lower surface 32L of the upper wooden column 30 from sinking into the upper surface 10U of the wooden beam 10.

Further, as described above, by shortening the upper tenon part 34, the base of the upper tenon part 34 becomes difficult to break when a horizontal force is applied to the upper wooden column 30 or the foundation 70 during an earthquake, for example. Therefore, it is possible to suppress the bending of the base of the upper tenon portion 34 during an earthquake.

Furthermore, in this embodiment, the axial force transmission member 90 is arranged in the communication hole 80 of the wooden beam 10. Thereby, the axial force transmission member 90 can be easily interposed between the upper tenon portion 34 and the foundation 70. Therefore, the workability of the axial force transmission member 90 is improved.

Although not shown in the drawings, without forming the communication hole 80 in the wooden beam 10, a part of the wooden beam 10 remaining below the upper mortise 18 is inserted into the shaft as in the second embodiment. Reinforcement by force transmitting elements is also possible.

(Modified example)
Next, modifications of the first, second, and third embodiments will be described. In addition, various modifications will be described below using the first embodiment as an example, but these modifications can also be applied to the second and third embodiments as appropriate.

In the first embodiment, the cross-sectional shape of the mortise 12 of the wooden beam 10 is rectangular. However, the cross-sectional shape of the mortise of the wooden beam 10 can be changed, and may be, for example, polygonal or circular. In this case, the cross-sectional shapes of the lower tenon, the upper tenon, and the axial force transmission member are changed as appropriate depending on the cross-sectional shape of the mortise.

Further, the cross-sectional shape of the axial force transmitting member 40 in the first embodiment does not necessarily have to match the cross-sectional shape of the mortise 12 (connection hole 16). It is also possible to insert force transmitting elements.

Further, in the first embodiment, the cross-sectional shapes of the wooden beam 10, the lower wooden column 20, and the upper wooden column 30 are rectangular. However, the cross-sectional shapes of the wooden beam 10, the lower wooden column 20, and the upper wooden column 30 may be, for example, polygonal or circular.

Moreover, the wooden beam 10 (wooden horizontal member), the lower wooden column 20, and the upper wooden column 30 in the first embodiment may have a fireproof structure or a semi-fireproof structure. Furthermore, the lower column and the upper column are not limited to wooden structures, and may be made of reinforced concrete (precast concrete), for example.

Further, in the first embodiment, the wooden horizontal member is the wooden beam 10. However, the wooden horizontal member is not limited to a wooden beam, but may be a wooden slab or the like. Further, in the first embodiment, the upper member is the upper wooden column 30. However, the upper member is not limited to a pillar, and may be a bundle material or the like. Further, in the first embodiment, the lower member is the lower wooden column 20. However, the lower member is not limited to a column, and may be a bundle, a beam, a slab, a foundation, or the like.

Although one embodiment of the present invention has been described above, the present invention is not limited to such an embodiment, and the embodiment and various modifications may be used in combination as appropriate, and the gist of the present invention may be It goes without saying that the invention can be implemented in various ways without departing from the scope.

10 Wooden beam (wooden horizontal member)
10L Bottom surface (bottom surface of wooden horizontal member)
10U top surface (top surface of wooden horizontal member)
14 Lower mortise 16 Connection hole 18 Upper mortise 20 Lower wooden post (lower member)
24 Lower tenon part 30 Upper wooden pillar (upper member)
34 Upper tenon part 40 Axial force transmission member 50 Partition wall part 60 Axial force transmission member 70 Foundation (lower member)
90 Axial force transmission member

Claims (2)

an upper mortise that opens the upper surface ; a lower mortise located below the upper mortise that opens the lower surface; and a connection hole that connects the lower mortise and the upper mortise. a wooden horizontal member having ;
an axial force transmission member disposed in the connection hole and having higher compressive rigidity in the vertical direction than the wooden horizontal member;
a lower member having a lower tenon inserted into the lower mortise;
an upper member having an upper tenon inserted into the upper tenon and supported by the lower tenon via the axial force transmission member ;
Wood horizontal member joint structure. A wooden material having an upper mortise that opens the upper surface, a lower mortise that is arranged below the upper mortise and opens the lower surface, and a partition that separates the lower mortise and the upper mortise. a horizontal member;
an axial force transmitting member that is inserted into a through hole vertically penetrating the partition wall and has higher compressive rigidity in the vertical direction than the wooden horizontal member;
a lower member having a lower tenon inserted into the lower mortise;
an upper member having an upper tenon inserted into the upper tenon and supported by the lower tenon via the axial force transmission member;
Wood horizontal member joint structure.