JP2008280786A - Joint structure of wooden building member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint structure enabling the joint to have an excellent toughness. <P>SOLUTION: In the joint structure for joining a beam member 3 to a column member 2 using a joint member 1, the joint member 1 is provided with a deformation part 10 easy to deform compared with other parts. By arranging the deformation part 10 at the joint part 4 where the beam member 3 and the column member 2 are joined together, breaking based on the brittleness caused by the breakage of the beam member 3 is not caused even when the stress which may break the beam member 3 is applied to the part between the beam member 3 and the column member 2, as the deformation part 10 of the joint member 1 reaches a yield point causing elongation in the axial direction, and is deformed before the beam member 3 is broken. Thus, the joint part 4 having the excellent toughness can be formed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a joined structure of wooden building members.

Conventionally, a structure in which a joining member such as a deformed reinforcing bar is inserted into one or both of the building members and joined is known as a joining structure of a wooden building member (see, for example, Patent Document 1). This joining structure is a structure in which the joining member is inserted and joined to both of the wooden building members, and includes a reinforcing steel plate surrounding the hole into which the joining member is inserted, so that when stress is applied between the building members, Prevents cracks in wooden building components.
JP 2004-285655 A

  However, in the conventional joined structure of wooden building members, cracking of building members can be prevented within a certain range of stress. However, if a stress exceeding a predetermined value, that is, a stress exceeding the reinforcing effect, is applied, A crack may generate | occur | produce in a building member and a brittle fracture | rupture may generate | occur | produce in a junction part.

  Then, this invention was made | formed in order to solve such a technical subject, Comprising: It aims at providing the junction structure which can join excellent in toughness in joining of a wooden building member.

  That is, the bonded structure according to the present invention includes a first building member composed of a wood material, a second building member bonded to the first building material, and the first building member and the second building member. It is a member that is inserted and joins the first building member and the second building member, and is arranged at the joint where the first building member and the second building member are joined, and is deformed in the axial direction from the other parts. And a joining member forming a deformable portion that is easy to do.

  By comprising in this way, even if it is a case where the magnitude | size of the magnitude | size which a 1st building member breaks between the 1st and 2nd building members is added, before the failure | damage of a 1st building member occurs Since the deformed portion of the joining member reaches the yield point and can be deformed by extending in the axial direction, the brittle fracture that occurs when the first building member is broken does not occur, and the joining portion has excellent toughness. Can be formed.

  Here, the second building member is preferably made of a wood material. By comprising in this way, in joining of wooden construction members, a joining part is not exposed but the junction part excellent in aesthetics can be formed.

  In the joining member, it is preferable that the deformed portion is formed so that the cross-sectional area is smaller than the cross-sectional area of other portions. With this configuration, for example, a deformed portion can be formed by cutting a part of an existing joining member, so that joining with excellent toughness can be realized at low cost.

  ADVANTAGE OF THE INVENTION According to this invention, the joining excellent in toughness is attained in the junction part of a wooden building member.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the description of the drawings, the same or corresponding parts are denoted by the same reference numerals, and redundant description is omitted. Further, the dimensional ratios in the figure do not necessarily match those in the description.

(First embodiment)
1 is a cross-sectional view of the joint structure according to the first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1, and FIG. 3 is taken along line III-III in FIG. FIG. 4 is an enlarged view showing the details of the joint of FIG. The joint structure according to the present embodiment is suitably used particularly in the case where building members are configured by joining building members made of wooden building members.

  As shown in FIGS. 1 to 4, the joint structure according to the present embodiment includes a pillar member (second building member) 2, a beam member (first building member) 3, and a joining member of a wooden building. 1 is provided.

  The column member 2 and the beam member 3 are building members that form a frame, and here are made of a wooden material obtained by processing wood. As the wood material, for example, lumber, laminated material, single plate laminated material and the like are used.

  A first insertion hole 22 for inserting the joining member 1 in the horizontal direction is formed in the column member 2. The first insertion hole 22 is a hole through which the joining member 1 is inserted, and is formed with an inner diameter larger than the outer diameter of the joining member 1. The first insertion holes 22 are formed, for example, through the column member 2 in the horizontal direction, and are formed at a plurality of locations so that the plurality of joining members 1 can be arranged.

  The beam member 3 is formed with a second insertion hole 32 for inserting the joining member 1 in the horizontal direction from the end face. The second insertion hole 32 is a hole through which the joining member 1 is inserted, and is formed with an inner diameter larger than the outer diameter of the joining member 1. Moreover, the 2nd insertion hole 32 is formed in multiple places so that the some joining member 1 can be arrange | positioned, for example. The second insertion hole 32 includes an injection hole (not shown) through which the adhesive 5 can be injected into the second insertion hole 32, and a discharge hole (not shown) through which the injected adhesive 5 is discharged out of the second insertion hole 32. ) And is configured so that the adhesive 5 can be suitably injected into the second insertion hole 32. As the adhesive 5, a material that is cured to be changed from a liquid state to a solid state is used.

  The joining member 1 that joins the column member 2 and the beam member 3 is a rod-like member that is inserted through the column member 2 and the beam member 3. For example, a metal rebar, a fiber reinforced fiber, or a bolt is used. The joining member 1 is inserted into the first insertion hole 22 of the column member 2 and protrudes to the side of the column member 2, and a part of the protruding joining member 1 is inserted into the second insertion hole 32 of the beam member 3. Then, the column member 2 and the beam member 3 are joined. In this joining, the adhesive 5 is injected into the second insertion hole 32 to join the joining member 1 and the beam member 3, and the joining member 1 and the column member 2 are joined.

  Thus, since the joining member 1 is joined to the beam member 3 and the column member 2 with a predetermined adhesive force by the adhesive 5, and the column member 2 and the beam member 3 are joined, the building is not damaged without deteriorating the aesthetic appearance. Can be configured.

  Here, as shown in FIG. 4, in the joint structure according to the present embodiment, the joint member 1 includes a deformable portion 10.

  The deformable portion 10 is formed so as to be deformed more easily than other portions in the joining member 1. The other portion is a portion constituting the joining member 1 excluding the deformable portion 10 (11 in FIG. 4). Here, the deformation | transformation part 10 is comprised with the material same as another part, and it is easy to deform | transform by forming the cross-sectional area of the deformation | transformation part 10 smaller than the cross-sectional area of another part. Such a deformation | transformation part 10 is formed by shaving off the circumference | surroundings of a part of rod-shaped member, for example. When the deformed reinforcing bar is used as the bonding member 1, the deformed portion 10 is a portion having a smaller cross section than the concave portion of the concave and convex portion formed on the surface of the deformed reinforcing bar.

  Further, the size of the cross-sectional area of the deformable portion 10 is determined by the yield stress of the deformable portion 10, and this yield stress is such that the bonding force between the joining member 1 and the beam member 3 and the beam member 3 are damaged. It is formed to be smaller than the stress.

  Further, the deformable portion 10 is disposed in the joint portion 4 where the column member 2 and the beam member 3 are in contact. In the first insertion hole 31 and the second insertion hole 32, the joint portion 4 indicates a region including a surface where the column member 2 and the beam member 3 are in contact, or a region around a surface where the column member 2 and the beam member 3 are in contact.

  Next, the function and effect of the bonded structure according to this embodiment will be described.

  In the conventional joint structure, for example, as shown in FIG. 5b, the adhesion force S between the joining member 1 and the beam member 3 is joined with an extremely high adhesive force S in order to increase the joining strength between the building members. ing. Here, when a stress F (F <S) having a predetermined magnitude is applied to the beam member 3, the beam member 3 is damaged due to a difference in material strength between the wood material and the joining member, and a crack A is generated. For this reason, brittle fracture may occur.

  On the other hand, in the bonded structure according to the present embodiment, as shown in FIG. 5 a, when a stress F having a predetermined magnitude is applied to the beam member 3, the yield stress K of the deformed portion 10 is the stress F. Therefore, the deformable portion 10 extends and deforms in the axial direction before the stress F is applied to the beam member 3, so that the beam member 3 is not damaged due to the stress. For this reason, brittle fracture can be avoided.

  As described above, according to the joint structure according to the present embodiment, the joining member 1 includes the deformable portion 10 that is more easily deformable than other portions, and the deformable portion 10 joins the beam member 3 and the column member 2 to each other. Even if the beam member 3 and the column member 2 are arranged at the portion 4 so that the beam member 3 is stressed so as to be damaged, before the beam member 3 is damaged, the joining member 1 The deformable portion 10 reaches the yield point and can be deformed by extending in the axial direction. For this reason, the brittle fracture which generate | occur | produces when the beam member 3 breaks does not arise, and the junction part 4 excellent in toughness can be formed.

  Moreover, according to the joining structure which concerns on this embodiment, since the wooden building members are joined by being penetrated by the beam member 3 and the column member 2 comprised with the wood material, the joining member 1 is not exposed and it is excellent in aesthetics. The joint portion 4 can be formed.

  Furthermore, according to the joint structure according to the present embodiment, the deformable portion 10 is formed by cutting, for example, a part of an existing joint member by making the cross-sectional area of the deformable portion 10 smaller than the cross-sectional area of other portions. Therefore, it is possible to easily achieve a joint having excellent toughness at low cost.

(Second Embodiment)
FIG. 6 is a cross-sectional view of the joint structure according to the second embodiment of the present invention. The joint structure according to the present embodiment is configured in substantially the same manner as the joint structure according to the first embodiment, and forms a casing by joining a building member made of a wooden building member to another building member. The point is different.

  As shown in FIG. 6, the joint structure according to this embodiment includes a column member (first building member) 2, an RC (Reinforced Concrete) member (second building member) 9, and the joining member 1. Yes.

  The column member 2 is a building member that constitutes a frame, and is made of a wood material obtained by processing wood. As the wood material, for example, lumber, laminated material, single plate laminated material and the like are used. The column member 2 is formed with a third insertion hole 23 for inserting the joining member 1 in the vertical direction. The third insertion hole 23 is a hole through which the joining member 1 is inserted, and is formed with an inner diameter larger than the outer diameter of the joining member 1. The 3rd insertion hole 23 is formed in a plurality of places so that a plurality of joining members 1 can be arranged. The third insertion hole 23 includes an injection hole (not shown) through which the adhesive 5 can be injected into the third insertion hole 23, and a discharge hole (not shown) through which the injected adhesive 5 is discharged out of the third insertion hole 23. The adhesive 5 can be suitably injected into the third insertion hole 23. As the adhesive 5, a material that is cured to be changed from a liquid state to a solid state is used.

  The RC member 9 is a building member used for, for example, a reinforced concrete structure, and is made of concrete here. The RC member 9 is formed with a fourth insertion hole 92 for inserting the joining member 1 in the vertical direction. The fourth insertion hole 92 is a hole through which the joining member 1 is inserted, and has a larger inner diameter than the outer diameter of the joining member 1. The fourth insertion holes 92 are formed at a plurality of locations so that a plurality of joining members 1 can be arranged. The fourth insertion hole 92 is configured so that the adhesive 5 can be suitably injected. As the adhesive 5, a material that hardens and becomes solid, for example, mortar is used.

  The column member 2 and the RC member 9 are joined by the joining member 1, and the deformed portion 10 is disposed at the joined portion 6. In the third insertion hole 23 and the fourth insertion hole 92, the joint portion 6 indicates a region including a surface where the column member 2 and the RC member 9 are in contact, or a region around a surface where the column member 2 and the RC member 9 are in contact.

  As described above, according to the joint structure according to the present embodiment, the joint member 1 includes the deformable portion 10 that is more easily deformable than other portions, and the deformable portion 10 joins the column member 2 and the RC member 9. Even if it is a case where the stress of the magnitude | size which the pillar member 2 breaks is added between the pillar member 2 and RC member 9 by being arrange | positioned at the part 4, before the damage of the pillar member 2 occurs, the joining member 1 The deformable portion 10 reaches the yield point and can be deformed by extending in the axial direction. For this reason, the brittle fracture which generate | occur | produces when the column member 2 breaks does not arise, and the junction part 6 excellent in toughness can be formed.

  Further, according to the joint structure according to the present embodiment, the column member 2 made of a wood material and the RC member 9 made of concrete are inserted, so that the joint member 1 is not exposed in joining and is excellent in aesthetics. The joint portion 4 can be formed.

  Furthermore, according to the joint structure according to the present embodiment, the deformable portion 10 is formed by cutting, for example, a part of an existing joint member by making the cross-sectional area of the deformable portion 10 smaller than the cross-sectional area of other portions. Therefore, it is possible to easily achieve a joint having excellent toughness at low cost.

(Third embodiment)
FIG. 7 is a cross-sectional view of the joint structure according to the third embodiment of the present invention. The joint structure according to the present embodiment is configured in substantially the same manner as the joint structure according to the first embodiment, and forms a casing by joining a building member made of a wooden building member to another building member. The point is different.

  As shown in FIG. 7, the joint structure according to the present embodiment includes a beam member (first building member) 3, a steel material (second building member) 40, and a joining member 7.

  The beam member 3 is a building member that constitutes a frame, and is made of a wood material obtained by processing wood. As the wood material, for example, lumber, laminated material, single plate laminated material and the like are used. The beam member 3 is formed with a second insertion hole 32 for inserting the joining member 1 in the horizontal direction from the end face. The second insertion hole 32 is a hole through which the joining member 1 is inserted, and is formed with an inner diameter larger than the outer diameter of the joining member 1. Moreover, the 2nd insertion hole 32 is formed in multiple places so that the some joining member 1 can be arrange | positioned, for example. The second insertion hole 32 includes an injection hole (not shown) through which the adhesive 5 can be injected into the second insertion hole 32, and a discharge hole (not shown) through which the injected adhesive 5 is discharged out of the second insertion hole 32. ) And is configured so that the adhesive 5 can be suitably injected into the second insertion hole 32. As the adhesive 5, a material that is cured to be changed from a liquid state to a solid state is used.

  The steel material 40 is a building member constituting a frame, and here, an H-shaped steel made of a steel material is used. A fifth insertion hole 42 for inserting the joining member 7 in the horizontal direction is formed in the steel material 40. The fifth insertion hole 42 is a hole through which the joining member 7 is inserted, and is formed with an inner diameter larger than the outer diameter of the joining member 7. The fifth insertion holes 42 are formed at a plurality of locations so that the plurality of joining members 1 can be arranged.

  The joining member 7 is a rod-like member that is inserted through the beam member 3 and the steel material 40. For example, a metal reinforcing bar, a fiber reinforced fiber, or a bolt is used. Also, a threaded portion that is screwed into the connecting nut 41 is formed at one end. The joining member 1 is inserted into the second insertion hole 32 of the beam member 3 so that the screw portion protrudes, the protruding screw portion is inserted into the fifth insertion hole 42, and the screw portion and the connecting nut 41 are screwed together. Thus, the beam member 3 and the steel material 40 are joined. At the time of this joining, the adhesive 5 is injected into the second insertion hole 32 to join the joining member 1 and the beam member 3 together.

  Further, the joint structure according to the present embodiment includes the deformable portion 70 as in the joint member 1 used in the joint structure according to the first embodiment.

  The deformable portion 70 is formed so as to be deformed more easily than other portions in the joining member 7. Here, the deformation | transformation part 70 is comprised with the material same as another part, and it is easy to deform | transform by forming the cross-sectional area of the deformation | transformation part 70 smaller than the cross-sectional area of another part. Such a deformation | transformation part 70 is formed by shaving off the circumference | surroundings of a part of rod-shaped member, for example. When a deformed reinforcing bar is used as the joining member 7, the deformed portion 70 is a portion having a smaller cross section than the concave portion of the uneven portion formed on the surface of the deformed reinforcing bar.

  In addition, the size of the cross-sectional area of the deformable portion 70 is determined by the yield stress of the deformable portion 70, and the yield stress is such that the bonding force between the joining member 7 and the beam member 3 and the beam member 3 are damaged. It is formed to be smaller than the stress.

  Further, the deformable portion 70 is disposed at a joint portion where the column member 2 and the beam member 3 are in contact with each other. In the first insertion hole 31 and the second insertion hole 32, the joint portion 8 indicates a region including a surface where the column member 2 and the beam member 3 are in contact, or a region around a surface where the column member 2 and the beam member 3 are in contact.

  As described above, according to the joint structure according to the present embodiment, the joint member 7 includes the deformable portion 70 that is more easily deformable than other portions, and the deformable portion 70 joins the beam member 3 and the steel material 40. 4, even when a stress of such a magnitude that the beam member 3 is damaged is applied between the beam member 3 and the steel member 40, the deformation of the joining member 7 is caused before the beam member 3 is damaged. The portion 70 reaches the yield point and can be extended and deformed in the axial direction. For this reason, the brittle fracture which generate | occur | produces when the beam member 3 is damaged does not arise, and the junction part 8 excellent in toughness can be formed.

  In addition, according to the joint structure according to the present embodiment, the joint member 8 is inserted through the beam member 3 made of a wood material, so that the joint member 7 is not exposed to a large extent, and the joint portion 8 having excellent aesthetics can be formed. .

  Furthermore, according to the joint structure according to the present embodiment, the deformable portion 70 is formed by, for example, scraping a part of an existing joint member by making the cross-sectional area of the deformable portion 70 smaller than the cross-sectional area of other portions. Therefore, it is possible to easily achieve a joint having excellent toughness at low cost.

  Each embodiment mentioned above shows an example of a joined structure concerning the present invention. The joining structure according to the present invention is not limited to the joining structure according to each of these embodiments, and the joining structure according to each embodiment is modified without changing the gist described in each claim. Or, it may be applied to other things.

  For example, in the above-described embodiment, the joining members 1 and 7 are rod-shaped members, and an example using a metal rebar, a fiber reinforced fiber, or a bolt has been described. For example, a deformed rebar, a screw rebar, or a round steel bar is used. A bolt, a plate, etc. may be sufficient, and the material and shape will not be limited if the deformation | transformation parts 10 and 70 are provided.

  Moreover, in the said embodiment, although the deformation | transformation part 10 and 70 was formed by shaving a part perimeter of the joining members 1 and 7, the case where a part perimeter of the joining members 1 and 7 was not scraped was demonstrated. For example, it may be a case where a half circumference is cut, and the point is that the deformable portions 10 and 70 may be more easily deformed than other portions by reducing the cross-sectional area.

  In the first embodiment, the wooden building members have been described. In the second embodiment, the wooden building members and the concrete have been described. In the third embodiment, the wooden building members and the steel materials have been described. However, the present invention is not limited thereto. However, if at least one material of the building members to be joined is a wood material, the same effect can be obtained.

  Moreover, although the example which controls the deformation | transformation ease of the deformation | transformation parts 10 and 70 with a cross-sectional area was shown in the said embodiment, it is not restricted to this, For example, the material of the deformation | transformation parts 10 and 70 is joined member 1. The material may be changed to control the ease of deformation of the deformable portions 10 and 70, for example, the material may be changed to a material that is more easily deformable than other parts.

It is a sectional side view showing the joined structure concerning a 1st embodiment. It is sectional drawing which shows the joining structure of FIG. It is sectional drawing which shows the joining structure of FIG. It is an enlarged view of the junction part of the joining structure of FIG. It is a figure which shows the effect of the joining structure of FIG. It is a sectional side view showing the joined structure concerning a 2nd embodiment. It is a sectional side view showing the joined structure concerning a 3rd embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1,7 ... Joining member, 2 ... Column member (1st, 2nd building member), 3 ... Beam member (1st building member) 4, 6, 8 ... Joining part, 9 ... RC member (2nd No. building member), 10, 70 ... deformed portion, 40 ... steel material (second building member).

Claims (3)

A first building member made of wood,
A second building member joined to the first building material;
A member that is inserted into the first building member and the second building member and joins the first building member and the second building member, the first building member and the second building member. A joining member that is disposed in a joining portion to which the member is joined and forms a deformed portion that is more easily deformed in the axial direction than other portions;
A bonded structure comprising:   The joined structure according to claim 1, wherein the second building member is made of a wood material.   The joining structure according to claim 1, wherein the deformable portion is formed so that a cross-sectional area is smaller than a cross-sectional area of the other portion.

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