Wall member installation structure made of wood material

Abstract

To provide a wall member installation structure made of wood materials, which makes it possible to easily perform adjustments for accurately installing wall members made of wood materials, such as a CLT load-bearing wall, at a designed installation position on the foundation by absorbing construction errors of anchor bolts, etc. embedded in the foundation.SOLUTION: A CLT load-bearing wall 1 is installed on a foundation F via joining members 2 that are installed on the foundation F; the joining members 2 include wall mounting members 2A with bottom plate portions 22 integrally formed with plate portions 21 that are fixed to the CLT load-bearing wall 1 with fasteners 3, and box members 2B that are fixed to the foundation F via anchor bolts B; the box members 2B fixed to the foundation F are filled with fluid solidification material in a state where the bottom plate portions 22 of the wall mounting members 2A are fixed to the CLT load-bearing wall 1.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an installation structure for a wall member made of a wooden material, such as a CLT bearing wall, which is installed on a foundation via a joint member for installing the wall member on the foundation. [Background technology]

[0002] "CLT load-bearing walls" are also called CLT walls, and are constructed using CLT. CLT is an abbreviation for Cross Laminated Timber, and refers to a wood material made by lining up planks and laminating and gluing them so that the grain direction of the wood material is perpendicular to the wall. The construction method of using CLT as wall and floor components to create a wall structure is called the CLT method, and taking advantage of the insulation properties unique to wood and the characteristics of wall structures, it is used not only for detached houses but also for mid-rise apartment buildings, and the demand for this construction method has been expanding in recent years (for example, see Patent Document 1).

[0003] Incidentally, in order to install a CLT bearing wall on a foundation, a CLT bearing wall installation structure has been proposed in which the CLT bearing wall is installed on the foundation via connecting members (see, for example, Patent Documents 2 and 3). Of these, the installation structure for a CLT bearing wall disclosed in Patent Document 2 is one in which a CLT bearing wall is integrated in advance by attaching connecting members using drift pins, and then installed on the foundation via the connecting members. Moreover, the installation structure for a CLT bearing wall disclosed in Patent Document 3 involves using drift pins to integrate a CLT bearing wall, in which pinholes are formed in advance, with a connecting member, which is also formed with pinholes and is embedded and fixed into the foundation, so that the CLT bearing wall can be installed on the foundation via the connecting member. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2017-119436 A [Patent Document 2] JP 2019-167763 A [Patent Document 3] JP 2018-197474 A Summary of the Invention [Problem to be solved by the invention]

[0005] The installation structures of CLT bearing walls disclosed in Patent Documents 2 and 3 have the advantage of being able to reduce the number and types of parts used. On the other hand, this CLT load-bearing wall installation structure involves installing the CLT load-bearing wall on the foundation via the connecting members by attaching the connecting members in advance using drift pins, or by integrating the CLT load-bearing wall with pinholes pre-formed and connecting members pre-formed with pinholes that are embedded and fixed into the foundation using drift pins, so that the CLT load-bearing wall is installed on the foundation via the connecting members. Therefore, construction errors in the anchor bolts and connecting members buried in the foundation, etc., cannot be absorbed, and there is a problem that it is necessary to make adjustments that require time and effort to accurately install the CLT load-bearing wall in the designed installation position on the foundation.

[0006] The present invention has an object to provide an installation structure for wall members made of wooden materials which, by installing the CLT bearing wall of the CLT bearing wall installation structure disclosed in Patent Documents 2 and 3 on the foundation via connecting members that are installed on the foundation, allows for the advantage of being able to reduce the number and types of parts used, while making it possible to absorb construction errors in anchor bolts, etc., embedded in the foundation, thereby facilitating adjustments for accurately installing wall members made of wooden materials, such as CLT bearing walls, in the designed installation position on the foundation. [Means for solving the problem]

[0007] In order to achieve the above object, the installation structure of the wall member made of wood material of the present invention comprises: An installation structure for a wall member made of a wood material, in which the wall member made of a wood material is installed on a foundation via a joint member for installing the wall member on the foundation, The joining member includes a wall mounting member having a bottom plate portion integrally formed with a plate portion fixed to a wall member made of a wood material by a fastener, and a box member fixed to a foundation via an anchor bolt, The box member is fixed to the foundation, and the bottom plate of the wall mounting member is fixed to the wall member made of wood material, and the fluid solidification material is filled in the box member. It is characterized by:

[0008] In this case, the wall mounting member can be configured to absorb construction errors in the longitudinal and lateral directions of the anchor bolt foundation, and the box member can be configured to absorb construction errors in the lateral direction of the anchor bolt foundation.

[0009] Furthermore, a cover plate extending inward from the upper end edges of the side plates of the box member can cover the upper surface of the box member, leaving a slit through which the plate portion of the wall mounting member can be inserted.

[0010] Also, a reinforcing member can be attached to bridge between the side plates of the box member. Effect of the Invention

[0011] According to the installation structure for a wall member made of wood material of the present invention, the wall member made of wood material is installed on the foundation via a joint member installed on the foundation, which has the advantage of reducing the number and types of parts used, and the wall member made of wood material can be installed on the foundation via the joint member installed on the foundation by filling the box member fixed to the foundation with a fluid solidification material in a state where the bottom plate part of the wall mounting member fixed to the wall member made of wood material is installed. This makes it possible to absorb construction errors such as anchor bolts embedded in the foundation, and makes it easy to make adjustments to accurately install the wall member made of wood material in the designed installation position on the foundation. [Brief description of the drawings]

[0012] [Figure 1] 1A and 1B show a first embodiment of an installation structure for a wall member made of wood material according to the present invention, in which (a) is a front view and (b) is a side view. [Diagram 2] 1A shows a connecting member of the first embodiment, where (a) is a front view of the connecting member, (b) is a side view of the same, (c) is a plan view of the same, and (d) is a front view of the connecting member fixed to a foundation via an anchor bolt. [Diagram 3] FIG. 4 is a perspective view showing an assembly process of the joint member of the first embodiment. [Figure 4] 1 shows a second embodiment of the installation structure for a wall member made of wood material according to the present invention, where (a) is a front view and (b) is a side view. [Diagram 5] 13A, 13B, and 13C show a connecting member of the second embodiment (fixed to a foundation via an anchor bolt), in which FIG. 13A is a front view of the connecting member, FIG. [Figure 6] FIG. 11 is a perspective view showing an assembly process of the joint member of the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the installation structure for a wall member made of wood material according to the present invention will be described with reference to the drawings.

[0014] 1 to 3 show a first embodiment of the installation structure for a wall member made of a wood material according to the present invention. The installation structure for this wall member made of wood material is such that a CLT load-bearing wall 1 as a wall member made of wood material is installed on a foundation F via a connecting member 2 that is installed on the foundation F, and the connecting member 2 comprises a wall mounting member 2A having a bottom plate portion 22 integrally formed with a plate portion 21 that is fixed to the CLT load-bearing wall 1 by fixing devices 3, and a box member 2B that is fixed to the foundation F via anchor bolts B, and with the bottom plate portion 22 of the wall mounting member 2A fixed to the CLT load-bearing wall 1 installed inside the box member 2B fixed to the foundation F, the fluid solidification material is filled in.

[0015] In this embodiment, the CLT load-bearing wall 1 used as the wall member made of a wooden material is a general-purpose CLT load-bearing wall that has been used conventionally, but in addition to CLT, a wide range of wood materials that can be used as wall members, such as NLT (Nail Laminated Timber), can be used for the wall member made of a wooden material. The CLT bearing wall 1 is provided at both ends in the width direction of the CLT bearing wall 1 with slits 11 in a direction parallel to the width direction, into which plate portions 21 of the wall mounting members 2A are inserted. The slit 11 is formed so that its width is slightly larger than the thickness of the plate portion 21 so that the plate portion 21 of the wall mounting member 2A can be smoothly inserted without being affected by expansion due to moisture absorption by the CLT load-bearing wall 1. Here, the slits 11 are usually provided at both ends in the width direction of the CLT bearing wall 1, as shown in this embodiment, but depending on the size of the CLT bearing wall 1, they can be provided at any position in the width direction of the CLT bearing wall 1, for example, at one location in the middle of the width direction of the CLT bearing wall 1, or at three locations (or more) including the middle of the width direction of the CLT bearing wall 1. In addition, in the case of a thick CLT load-bearing wall 1, the slits 11 can be formed in multiple layers (two or three or more layers) by changing the position of the slits 11 in the thickness direction of the CLT load-bearing wall 1, and correspondingly, multiple (two or three or more) wall mounting members 2A can be used, or a wall mounting member 2A having multiple (two or three or more) plate portions 21 can be used. In addition, the lower portion 12 of the slit 11 in the CLT bearing wall 1 is cut out so as not to interfere with the joint member 2. It is also possible to fix the plate portion 21 of the wall mounting member 2A to the surface of the CLT bearing wall 1 without providing the slits 11.

[0016] The joint member 2 includes a wall mounting member 2A and a box member 2B, and is made of a metal member such as iron.

[0017] The plate portion 21 and bottom plate portion 22 of the wall mounting member 2A are made of metal plate material of a specified thickness depending on the required strength (in this embodiment, the plate portion 21 is made of a rectangular flat steel bar (SS400) of 130 x 270 mm and 4.5 mm thickness, and the bottom plate portion 22 is made of two flat steel bars (SS400) of 30 x 60 mm and 9 mm thickness) and the two are welded together (the bottom plate portion 22 is welded with a gap of 50 mm between the two flat steel bars) to form the wall mounting member 2A. Here, a plurality of pilot holes 23 are formed in the plate portion 21 for fixing the CLT bearing wall 1 and the plate portion 21 with drift pins used as fixing devices 3. As the fixing devices 3, any fixing devices such as bolts, nuts, nails, etc. can be used in addition to drift pins. Further, a window portion 24 is formed in the lower portion of the plate portion 21 so that a nut N can be screwed onto the anchor bolt B for fastening operation.

[0018] For the box member 2B, a metal plate material of a predetermined thickness (in this embodiment, flat steel (SS400) of 6.0 mm thickness) is used according to the required strength, and is bent and, if necessary, The pieces are welded together to form a box shape with a cross section of 75 mm square, a length (X direction) of 199 mm, and both ends closed. Here, the lower part of plate portion 21 and bottom plate portion 22 of wall mounting member 2A are housed in box member 2B, and a cover plate 25 extending inward from the upper end edge of the side plate of box member 2B covers the upper surface of box member 2B while leaving slits 26 through which plate portion 21 of wall mounting member 2A is inserted. Wall mounting member 2A housed in box member 2B is made to be movable in the longitudinal direction of the foundation (X direction) within box member 2B so that construction error of anchor bolt B in the longitudinal direction of the foundation (X direction) can be absorbed. Further, the bottom plate of the box member 2B is provided with a through hole 27 through which the anchor bolt B is inserted. This through hole 27 is formed in an elongated hole shape with a dimension of 40 mm in the short side direction (Y direction) of the foundation so that construction error of the anchor bolt B in the short side direction (Y direction) of the foundation can be absorbed. Furthermore, a window portion 28 is formed in the side plate of the box member 2B to allow a nut N to be screwed onto the anchor bolt B for fastening operation.

[0019] Next, we will explain how to erect a CLT bearing wall using this CLT bearing wall installation structure. (1) Foundation F with anchor bolts B buried in the specified design installation position is constructed so that its top surface is finished to a horizontal surface. (2) A CLT bearing wall 1 in which connecting members 2 have been arranged in advance at a factory or the like (a CLT bearing wall 1 in which the plate portion 21 of the wall mounting member 2A of the connecting member 2 is fixed with fasteners 3. Here, the connecting members 2 are arranged in advance at a factory or the like by inserting the lower portion of the plate portion 21 of the wall mounting member 2A and the bottom plate portion 22 shown in FIG. 3(a) into the box member 2B shown in FIG. 3(b) from the side opening of the box member 2B and welding the side plate of the box member 2B to be housed therein, so that the wall mounting member 2A and the box member 2B are assembled together and cannot be separated, as shown in FIG. 3(c)) is hung down in accordance with the specified designed installation position (X direction, Y direction, Z direction) of the foundation F while the anchor bolts B are inserted into the through holes 27 of the box member 2B. At this time, the gap formed between the two flat steel pieces of the bottom plate portion 22 of the wall mounting member 2A absorbs construction errors in the longitudinal direction (X direction) and short direction (Y direction) of the foundation F of the anchor bolt B, and the through hole 27 of the box member 2B absorbs construction errors in the short direction (Y direction) of the foundation F of the anchor bolt B. (3) The box member 2B is temporarily fixed by screwing a nut N onto the anchor bolt B via a washer M and tightening it, and then the window portion 28 of the box member 2B is sealed and the inside of the box member 2B is filled with fluid solidification material (the space in the lower part 12 of the slit 11 of the CLT load-bearing wall 1 is filled with filler), and the box member 2B is permanently fixed. (4) The gap between the foundation F and the CLT load-bearing wall 1 can be filled with filling member S (or filling material).

[0020] Here, for the fluid solidification material filled in the box member 2B, a wide variety of general-purpose grout materials such as mortar can be used, and in particular, non-shrink mortar can be suitably used.

[0021] According to this installation structure for wall members made of wood materials, the CLT bearing wall 1 is installed on the foundation F via the connecting members 2 installed on the foundation F, which has the advantage of reducing the number and types of parts used, while the CLT bearing wall 1 can be installed on the foundation F via the connecting members 2 installed on the foundation F by filling the box member 2B fixed to the foundation F with fluid solidification material in a state where the bottom plate portion 22 of the wall mounting member 2A fixed to the CLT bearing wall 1 is installed. This makes it possible to absorb construction errors such as those in the anchor bolts B buried in the foundation F, and allows the CLT bearing wall 1 to be accurately installed in the designed installation position on the foundation F. This allows easy adjustments to be made. In addition, a cover plate 25 extending inward from the upper edge of the side plate of the box member 2B covers the upper surface of the box member 2B, leaving a slit 26 through which the plate portion 21 of the wall mounting member 2A is inserted, thereby allowing the joining member 2 to be firmly installed on the foundation F by the filled fluid solidification material.

[0022] 4 to 6 show a second embodiment of the installation structure for wall members made of wood material according to the present invention. The installation structure for this wall member made of wood material is such that a CLT load-bearing wall 1 as a wall member made of wood material is installed on a foundation F via a connecting member 2 that is installed on the foundation F, and the connecting member 2 comprises a wall mounting member 2A having a bottom plate portion 22 integrally formed with a plate portion 21 that is fixed to the CLT load-bearing wall 1 by fixing devices 3, and a box member 2B that is fixed to the foundation F via anchor bolts B, and with the bottom plate portion 22 of the wall mounting member 2A fixed to the CLT load-bearing wall 1 installed inside the box member 2B fixed to the foundation F, the fluid solidification material is filled in.

[0023] The plate portion 21 and bottom plate portion 22 of the wall mounting member 2A are made of metal sheet material of a specified thickness depending on the required strength (in this embodiment, the plate portion 21 is made of a rectangular flat steel bar (SS400) of 150 x 270 mm and 4.5 mm thickness, and the bottom plate portion 22 is made of two flat steel bars (SS400) of 30 x 60 mm and 9 mm thickness) and the two are welded together (the bottom plate portion 22 is welded with a gap of 70 mm between the two flat steel bars) to form the wall mounting member 2A. Here, a plurality of pilot holes 23 are formed in the plate portion 21 for fixing the CLT bearing wall 1 and the plate portion 21 with drift pins used as fixing devices 3. As the fixing devices 3, any fixing devices such as bolts, nuts, nails, etc. can be used in addition to drift pins. Further, a window portion 24 is formed in the lower portion of the plate portion 21 to prevent the plate portion 21 from interfering with a reinforcing member 29 attached to the box member 2B.

[0024] For the box member 2B, a metal plate material of a prescribed thickness (in this embodiment, 6.0 mm thick flat steel (SS400)) is used according to the required strength, which is bent and, if necessary, welded, so as to form a box shape with a cross section of 75 mm square, a length (X direction) of 219 mm, both ends closed, and an open top. Here, the lower part of the plate portion 21 and the bottom plate portion 22 of the wall mounting member 2A are housed in the box member 2B. The wall mounting member 2A housed in the box member 2B is designed to be movable in the longitudinal direction (X direction) of the foundation within the box member 2B so that construction errors of the anchor bolts B in the longitudinal direction (X direction) of the foundation can be absorbed. Further, the bottom plate of the box member 2B is provided with a through hole 27 through which the anchor bolt B is inserted. This through hole 27 is formed in an elongated hole shape with a dimension of 40 mm in the short side direction (Y direction) of the foundation so that construction error of the anchor bolt B in the short side direction (Y direction) of the foundation can be absorbed. Furthermore, a plurality of through holes are formed in the opposing side plates of the box member 2B, and a reinforcing member 29 is attached so as to bridge between both side plates.

[0025] Next, we will explain how to erect a CLT bearing wall using this CLT bearing wall installation structure. (1) Foundation F with anchor bolts B buried in the specified design installation position is constructed so that its top surface is finished to a horizontal surface. (2) The anchor bolt B is inserted into the through hole 27 of the box member 2B, and the nut N is screwed onto the anchor bolt B via the washer M and tightened to temporarily fix the box member 2B. It is possible to absorb construction errors in the short direction (Y direction) of foundation F (Figure 6(a)). (3) The CLT bearing wall 1 (CLT bearing wall 1 with the plate portion 21 of the wall mounting member 2A of the connecting member 2 fixed with the fasteners 3) with the connecting members 2 previously installed at a factory or the like is hung down in a predetermined designed installation position (X direction, Y direction, Z direction) of the foundation F so that the lower portion of the plate portion 21 and the bottom plate portion 22 of the wall mounting member 2A are housed within the box member 2B. At this time, the gap formed between the two flat steel pieces of the bottom plate portion 22 of the wall mounting member 2A can absorb construction errors of the anchor bolts B in the longitudinal direction (X direction) and lateral direction (Y direction) of the foundation F (Fig. 6(b)). (4) The reinforcing member 29 is installed between the opposing side plates of the box member 2B, and then the inside of the box member 2B is filled with fluidized solidification material (the space in the lower part 12 of the slit 11 of the CLT bearing wall 1 is filled with a filling material) to perform the permanent fixation (Fig. 6(c)). (5) The gap between the foundation F and the CLT load-bearing wall 1 can be filled with filling member S (or filling material).

[0026] According to the installation structure of the wall member made of this wood material, the reinforcing member 29 is installed across the opposing side panels of the box member 2B, and then the box member 2B is filled with fluid solidification material, whereby the filled fluid solidification material allows the joining member 2 to be firmly installed on the foundation F.

[0027] Other configurations and functions of this embodiment are similar to those of the installation structure of the wall member made of wood material in the first embodiment.

[0028] The above describes the installation structure of the wall member made of wood material of the present invention based on its embodiment, but the present invention is not limited to the configuration described in the above embodiment, and the configuration can be changed as appropriate within the scope of the spirit of the present invention. [Industrial Applicability]

[0029] The installation structure for wall members made of wood materials of the present invention has the advantage of being able to reduce the number and types of parts used, and by making it possible to absorb construction errors such as those in anchor bolts embedded in the foundation, adjustments can be easily made to accurately install wall members made of wood materials such as CLT load-bearing walls in the designed installation position on the foundation, making it ideal for use in installing wall members made of wood materials such as CLT load-bearing walls. [Explanation of symbols]

[0030] 1. CLT load-bearing walls (wall components made of wood materials) 11 Slit 12 Lower part (cutout) 2 Joining materials 2A Wall mounting material 2B Box material 21 Plate section 22 Bottom plate part 23 Pilot hole 24 Window section 25 Cover plate 26 Slit 27 Through hole 28 Window 29 Reinforcement members 3 Fixtures F Basics B Anchor bolt M washer N Nut S Filler material

Claims

1. An installation structure for a wall member made of a wood material, in which the wall member made of a wood material is installed on a foundation via a joint member for installing the wall member on the foundation, The joining member includes a wall mounting member having a bottom plate portion integrally formed with a plate portion fixed to a wall member made of a wood material by a fastener, and a box member fixed to a foundation via an anchor bolt, The box member is fixed to the foundation, and the bottom plate of the wall mounting member is fixed to the wall member made of wood material, and the fluid solidification material is filled in the box member.

1. A structure for installing a wall member made of wood material.

2. 2. An installation structure for a wall member made of wood material as described in claim 1, characterized in that the wall mounting member is capable of absorbing construction errors in the longitudinal and lateral directions of the foundation of the anchor bolt, and the box member is capable of absorbing construction errors in the lateral direction of the foundation of the anchor bolt.

3. 3. An installation structure for a wall member made of wood material as described in claim 1 or 2, characterized in that a cover plate extending inward from the upper edge of the side panel of the box member covers the upper surface of the box member, leaving a slit through which the plate portion of the wall mounting member is inserted.

4. 3. The installation structure for a wall member made of a wood material according to claim 1, wherein a reinforcing member is attached between the side plates of the box member so as to span the box member.

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