JP2019190068A - Junction structure of wall material - Google Patents

Abstract

To provide a junction structure of a wall material in which axial force from a wall material is hardly inputted to a floor material formed of a wood material.SOLUTION: A junction structure of a wall material is provided with : a wall material 12A formed of a wood material ; a floor material 14 formed of a wood material and disposed in the lower part of the wall material 12A ; a wall material 12B formed of a wood material and disposed in the lower part of the floor material 14; joint block 20 disposed between a lower corner of wall material 12A and an upper corner of wall material 12B and transmitting stress between the wall material 12A and the wall material 12B.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a joining structure for wall materials.

  Patent Document 1 below describes a combined structure of a hybrid frame and a CLT plate in which a CLT plate as a wall material is placed on a CLT plate as a flooring material.

JP-A-2006-204864 (FIG. 5)

  When a wall material is placed on a floor material formed of a wood material as in Patent Document 1, when the axial force of the wall material input to the floor material increases during an earthquake or the like, the floor material is There is a possibility of being crushed.

  In view of the above-described facts, an object of the present invention is to provide a wall material joining structure in which an axial force from a wall material is difficult to be input to a floor material made of a wood material.

  The wall material joining structure according to claim 1 is formed of a first wall material formed of a wood material, a floor material formed of a wood material and disposed at a lower portion of the first wall material, and a wood material, A second wall member disposed at a lower portion of the floor material, a lower corner portion of the first wall member, and an upper corner portion of the second wall member; the first wall member and the second wall; A stress transmission member that transmits stress to and from the material.

  In the wall material joining structure according to the first aspect, the stress transmission member is disposed between the lower corner portion of the first wall material and the upper corner portion of the second wall material. For this reason, the axial force of the first wall material is transmitted to the second wall material via the stress transmission member. Thereby, it is suppressed that the axial force of a 1st wall material is input into the floor material arrange | positioned between a 1st wall material and a 2nd wall material.

  The wall material joining structure according to claim 2 includes a first cutout portion formed in the lower corner portion and a second cutout portion formed in the upper corner portion, and the stress transmission member includes the first cutout portion. An upper member disposed in the notch and fixed to the first wall member with a lag screw, an intermediate member bolted to the upper member and fixed to an end surface of the floor material, and bolted to the intermediate member A lower member disposed in the second notch and fixed to the second wall member with a lag screw.

  In the wall material joining structure according to claim 2, the first wall material and the stress transmission member are joined by a lag screw, and the stress transmission member and the second wall material are joined by a lag screw. For this reason, the tensile force and shearing force which generate | occur | produced in the 1st wall material can be transmitted to a 2nd wall material via a stress transmission member. For this reason, the flooring material does not need to bear the tensile force and shearing force generated in the first wall material and the second wall material.

  The stress transmission member is formed by combining a lower member, a middle member, and an upper member. For this reason, compared with the case where it forms all integrally, it is easy to carry and to construct.

  In the wall material joining structure according to claim 3, the height of the intermediate member is formed larger than the thickness of the floor material.

    In the wall material joining structure according to claim 3, the height of the intermediate member fixed to the floor material is larger than the thickness of the floor material. For this reason, a gap is formed between the floor material and the first wall material or the second wall material. Thereby, equipment piping can be let through without making a hole in the 1st wall material and the 2nd wall material. Or a small window can be formed in the lower part of a 1st wall material, or the upper part of a 2nd wall material.

  According to the joint structure of wall materials according to the present invention, the axial force from the wall material is difficult to be input.

It is a fragmentary sectional view which shows the building where the junction structure of the wall material which concerns on 1st Embodiment of this invention was applied. (A) is a front view which shows the joint block in the joining structure of the wall material which concerns on 1st Embodiment of this invention, (B) is a BB sectional drawing in (A), (C) is ( It is CC sectional view taken on the line in A). (A) is a front view which shows the joint block in the joining structure of the wall material which concerns on 2nd Embodiment of this invention, (B) is the BB sectional drawing in (A). (A) is a front view which shows the joint block in the joining structure of the wall material which concerns on 3rd Embodiment of this invention, (B) is the BB sectional drawing in (A).

[First Embodiment]
(building)
FIG. 1 is a partial cross-sectional view of a building 10 to which the wall material joining structure according to the first embodiment of the present invention is applied. The building 10 is a building having a wall structure made of a wooden material, which is formed by combining wall materials and floor materials formed of CLT.

  In the building 10, a flooring 14 (floor) is provided between an upper floor 12A (an example of a first wall in the present invention) and a lower floor 12B (an example of a second wall in the present invention). Materials 14A and 14B (see FIGS. 2B and 2C) are arranged. The wall material 12A and the wall material 12B are wall materials arranged in the vertical direction in the same plane.

  The wall material 12 </ b> A and the wall material 12 </ b> B are joined by the joint block 20. Specifically, the joint blocks 20 are joined to both lower ends of the wall member 12A, and these joint blocks 20 are joined to both upper ends of the wall member 12B.

(Joint block)
Detailed views of the joint block 20 are shown in FIGS. The joint block 20 is a stress transmission member that transmits stress between the wall material 12A and the wall material 12B. The joint block 20 is formed by assembling an upper member 22, a middle member 24, and a lower member 26 formed of steel.

  The upper member 22 is formed by welding plate members 22B, 22C, and 22D that are substantially orthogonal to the plate member 22A to the respective end faces of the three sides of the plate member 22A having a right triangle shape.

  The plate member 22A is disposed along the in-plane direction of the wall member 12A, and the inclination angle θ of the hypotenuse is 45 degrees. The plate material 22B is a plate material joined to the oblique side of the plate material 22A, and reinforcing ribs 22E are disposed between the plate material 22A and the plate material 22B.

  A notch 12AE (an example of a first notch in the present invention) is formed in the lower corner of the wall material 12A, and the upper member 22 is disposed in the notch 12AE. A plate member 22B is fixed to the end surface of the wall member 12A in the notch 12AE by a lag screw bolt 32. Accordingly, the plate member 22C of the upper member 22 is disposed so as to be substantially flush with the side end surface of the wall member 12A, and the plate member 22D is disposed so as to be substantially flush with the bottom surface of the wall member 12A.

  Note that the lag screw bolt 32 is disposed from a through hole formed in the plate member 22B after the female screw member embedded in the end surface of the wall member 12A in advance, the wall member 12A and the upper member 22 are arranged at predetermined positions. The bolt is screwed into the female screw member.

  The widths of the plate materials 22B, 22C, and 22D are substantially the same as the thickness of the wall material 12A. Thereby, the upper member 22 is arrange | positioned so that it may not protrude from the surface of 12 A of wall materials.

  The middle member 24 is formed by welding plate members 24B, 24C, 24D, and 24E that are substantially orthogonal to the plate member 24A to the respective end surfaces of the four sides of the rectangular plate member 24A.

  The plate member 24 </ b> A is disposed on the same surface as the plate member 22 </ b> A in the upper member 22. The plate member 24B is fixed to the end surfaces of the flooring materials 14A and 14B using an extended resin anchor 34. The plate member 24C is joined to the plate member 22D in the upper member 22 using a bolt 36 (high-strength bolt). The plate material 24D is fixed to the end surfaces of the floor materials 14C, 14D using lag screw bolts 38.

  The plate member 24E is joined to a plate member 26D in the lower member 26 described later using a bolt 40 (high strength bolt). The plate material 24E is wider than the plate material 24C, and the floor materials 14A and 14B are placed on portions protruding from the plate material 24C.

  The lower member 26 is formed by welding plate members 26B, 26C, and 26D that are substantially orthogonal to the plate member 26A to the respective end surfaces of the three sides of the plate member 26A having a right triangle shape.

  The plate member 26A is disposed along the in-plane direction of the wall member 12B and on the same plane as the plate member 22A of the upper member 22, and the inclination angle θ of the hypotenuse is 45 degrees. The plate material 26B is a plate material joined to the oblique side of the plate material 26A, and reinforcing ribs 26E are disposed between the plate material 26A and the plate material 26B.

  A notch 12BE (an example of a second notch in the present invention) is formed in the upper corner of the wall material 12B, and a lower member 26 is disposed in the notch 12BE. A plate member 26B is fixed to the end surface of the wall member 12B in the notch 12BE by a lag screw bolt 42. Accordingly, the plate member 26C of the lower member 26 is disposed so as to be substantially flush with the side end surface of the wall member 12B, and the plate member 26D is disposed so as to be substantially flush with the upper surface of the wall member 12B.

  The widths of the plate materials 26B, 26C, and 26D are substantially the same as the thickness of the wall material 12B. Thereby, the lower member 26 does not protrude from the surface of the wall material 12B.

(Action / Effect)
In the joint structure of wall materials according to the first embodiment, a steel joint block 20 is disposed between the lower corner portion of the wall material 12A formed by CLT and the upper corner portion of the wall material 12B. For this reason, the axial force (downward axial force) of the wall member 12 </ b> A is transmitted to the wall member 12 </ b> B through the joint block 20. Thereby, it is suppressed that the axial force of wall material 12A is input into flooring materials 14A and 14B arranged between wall material 12A and wall material 12B.

  Further, for example, the axial force (upward axial force) of the wall member 12 </ b> B generated during an earthquake or the like is also transmitted to the wall member 12 </ b> A through the joint block 20. Thereby, it is suppressed that the axial force of wall material 12B is input into flooring 14A, 14B arrange | positioned between wall material 12A and wall material 12B.

  For this reason, even when a large upward or downward axial force acts between the wall material 12A and the wall material 12B during an earthquake, the axial force is difficult to be input to the floor materials 14A and 14B. , 14B is suppressed.

  In the wall material joining structure according to the first embodiment, the wall material 12A and the joint block 20 (upper member 22) are joined by the lag screw bolt 32, and the joint block 20 (lower member 26) and the wall material 12B are joined. Are joined by lag screw bolts 42.

  For this reason, the tensile force and shearing force which generate | occur | produced in 12 A of wall materials can be transmitted to the wall material 12B via the lag screw bolts 32 and 43 and the joint block 20. FIG. Similarly, the tensile force and shear force generated in the wall material 12B can be transmitted to the wall material 12A via the lag screw bolts 32 and 43 and the joint block 20. Thereby, flooring 14A, 14B does not need to bear the tensile force and shearing force which generate | occur | produce in 12 A of wall materials and 12 A of wall materials.

  The joint block 20 is formed by assembling an upper member 22, a middle member 24, and a lower member 26. For this reason, compared with the case where it forms all integrally, it is easy to carry and to construct.

[Second Embodiment]
3A and 3B show a wall material joining structure according to the second embodiment. In the joint block 50 in this wall material joining structure, the upper member 52 and the lower member 56 are disposed inside the wall material 16A and the wall material 16B.

  The CLT forming the wall material 16A is formed by laminating plate materials formed by adhering long laminaes in the width direction. In the wall material 16A, a notch portion 16AE is formed by notching an inner plate material excluding a surface layer plate material. Thereby, the upper member 52 is covered with the plate material on the surface of the wall material 16A and is suppressed from being visually recognized from the outside. Similarly, the lower member 56 is covered with the plate material on the surface of the wall material 16B and is suppressed from being visually recognized from the outside.

  For this reason, it is suitable to apply the joint structure of the wall material which concerns on 2nd Embodiment, when forming the space of the design which utilized the grain of CLT.

  In the upper member 52, a plate material corresponding to the plate material 22C (see FIG. 2A) of the upper member 22 in the first embodiment, that is, a floor material arranged substantially flush with the side end surface of the wall material 16A is omitted. ing. For this reason, when fixing the upper member 22 to the wall material 16A, the lag screw bolt 32 can be screwed in by inserting a tool from the side end face side of the wall material 16A. Similarly, in the lower member 56, a plate material corresponding to the plate material 26C (see FIG. 2A) of the lower member 26 in the first embodiment is omitted. For this reason, when fixing the lower member 56 to the wall material 16B, the lag screw bolt 42 can be screwed in by inserting a tool from the side end face side of the wall material 16B.

  In addition, the structure of board | plate material 52A, 52B, 52D, 52E, 54A, 54B, 54C, 54D, 54E, 56A, 56B, 56D, and 56E in the joining structure of the wall material which concerns on 2nd Embodiment concerns on 1st Embodiment. The plate members 22A, 22B, 22D, 22E, 24A, 24B, 24C, 24D, 24E, 26A, 26B, 26D, and 26E in the wall material joining structure are the same as those in the structure, and the description thereof is omitted. In addition, other configurations and effects are the same as those of the wall material joining structure according to the first embodiment, and the same reference numerals are given and description thereof is omitted.

[Third Embodiment]
4A and 4B show a wall material joining structure according to the third embodiment. In the joint block 60 in this wall material joining structure, the height of the intermediate member 64 is formed larger than the thickness of the flooring materials 14A and 14B.

  Specifically, in the intermediate member 64 in the third embodiment, instead of the plate members 24A, 24B, and 24D of the intermediate member 24 in the first embodiment, plate members 64A and 64B that are higher in height than the plate members 24A, 24B, and 24D. , 64D are arranged. Thereby, a space V is formed between the wall material 12A and the floor materials 14A and 14B.

  This space V can be used, for example, as an opening (ground window) provided in the lower part of the wall material 12A. Or if a double floor is constructed in the upper part of flooring 14A and 14B, it can be used as piping space over two spaces partitioned by wall material 12A.

  The configurations of the plate members 62A, 62B, 62C, 62D, 62E, 64C, 64E, 66A, 66B, 66C, 66D, and 66E in the wall material joining structure according to the third embodiment are the same as those of the wall material according to the first embodiment. This is the same as the plate materials 22A, 22B, 22C, 22D, 22E, 24C, 24E, 26A, 26B, 26C, 26D, and 26E in the joint structure of FIG. In addition, other configurations and effects are the same as those of the wall material joining structure according to the first embodiment, and the same reference numerals are given and description thereof is omitted.

  In the first embodiment, as illustrated in FIG. 1, the example in which the upper floor wall material 12 </ b> A and the lower floor wall material 12 </ b> B are joined by the joint block 20 has been described. It is not always necessary to join all the upper floor wall materials and the lower floor wall materials with the joint block 20.

  That is, in the building 10, it is only necessary that some of the wall materials arranged above and below are joined by the joint block 20. Also in the second and third embodiments, it is only necessary that some of the wall materials arranged in the vertical direction are joined by the joint blocks 50 and 60. Further, the joint block 20, 50, 60 can be used in appropriate combination in the building 10.

  Moreover, the joint block 20 does not necessarily need to be provided at both end portions of the wall material arranged vertically. For example, you may provide only in one lower end part (the lower end part of the right side, or the lower end part of the left side) of 12 A of wall materials in FIG. In this case, it is preferable that the other lower end portion of the wall material 12A is fixed to a structural housing such as a beam formed using concrete or a steel frame to suppress indentation into the floor materials 14A and 14B. The same applies to the joint blocks 50 and 60.

  In addition to the joint block 20, a steel auxiliary block 70 whose outer shape is indicated by a broken line in FIG. 1 may be provided. For example, the auxiliary block 70 is provided with a notch at the center in the width direction (the left-right direction in the plane of FIG. 1) of the wall materials 12A and 12B and the floor materials 14A and 14B, and is arranged in these notches. By providing the auxiliary block 70, the effect of suppressing the axial force from the wall material 12A to the floor materials 14A and 14B is enhanced.

  Moreover, in 1st Embodiment, although the upper member 22 of the joint block 20 is being fixed to 12 A of wall materials using the lag screw bolt 32, embodiment of this invention is not restricted to this. For example, you may fix using an expansion resin anchor etc. The same applies to the fixing method of the lower member 26 to the wall material 12B.

  Moreover, although the intermediate member 24 of the joint block 20 is being fixed to the end surface of flooring 14A, 14B using the expansion resin anchor 34, embodiment of this invention is not restricted to this. For example, you may fix using a lag screw bolt etc.

  That is, the joining method of the joint block 20 and the wall materials 12A and 12B and the floor materials 14A and 14B can be any method. The same applies to the joint blocks 50 and 60.

  Moreover, although the upper member 22, the middle member 24, and the lower member 26 in the joint block 20 are mutually joined with the volt | bolt 36 or the volt | bolt 40, embodiment of this invention is not restricted to this. For example, you may join by welding. Alternatively, the plate member 22D in the upper member 22 and the plate member 24C in the middle member 24 may be a single plate member. Similarly, the plate member 24E in the middle member 24 and the plate member 26D in the lower member 26 may be a single plate member. In this way, the number of members can be reduced.

  Furthermore, in each of the above-described embodiments, the wall members 12A and 12B are provided with the notches 12AE and 12BE, and the upper member 22 and the lower member 26 are disposed in the notches 12AE and 12BE, respectively. The embodiment is not limited to this. For example, the notches 12AE and 12BE may not be formed in the wall materials 12A and 12B, and the joint block may be formed only by the middle member 24. Even in this case, the axial force of the wall material 12B can be suppressed from being input to the floor materials 14A and 14B disposed between the wall material 12A and the wall material 12B.

  In each of the above embodiments, the wall materials 12A, 12B and the floor materials 14A, 14B, 14C, 14D are all formed using CLT, but the embodiments of the present invention are not limited to this. For example, you may form all or one part of these using LVL, a laminated material, etc. As described above, the present invention can be implemented in various modes.

12A wall material (first wall material)
12B Wall material (second wall material)
12AE Notch (first notch)
12BE Notch (second notch)
20, 50, 60 Joint block (stress transmission member)
22, 52, 62 Upper member 24, 54, 64 Middle member 26, 56, 66 Lower member 32 Lug screw bolt (lag screw)
42 lag screw bolt (lag screw)

Claims (3)

A first wall made of wood material;
A flooring formed of a wood material and disposed under the first wall;
A second wall member formed of a wood material and disposed under the floor material;
A stress transmission member disposed between a lower corner portion of the first wall member and an upper corner portion of the second wall member and transmitting stress between the first wall member and the second wall member;
Wall material joint structure equipped with. A first cutout formed in the lower corner;
A second notch formed in the upper corner,
The stress transmission member is
An upper member disposed in the first notch and fixed to the first wall member with a lag screw;
A middle member bolted to the upper member and fixed to the end surface of the flooring;
A lower member that is bolted to the middle member and disposed in the second notch and fixed to the second wall member with a lag screw,
The wall material joining structure according to claim 1. The wall member joining structure according to claim 2, wherein a height of the middle member is formed larger than a thickness of the flooring.