Installation structure of a wall member made of a wood material

Abstract

To provide an installation structure for a wall member made of a wooden material, which makes it possible to easily perform adjustments for accurately installing a wall member made of a wooden material, such as a CLT bearing wall, at a designed installation position on the foundation by absorbing construction errors of anchor bolts, or the like, embedded in the foundation.SOLUTION: A joint member 2 includes a fixing portion 21 fixed to a foundation F via an anchor bolt B, and an insert plate 22. A CLT bearing wall 1 includes a slit 11 into which the insert plate 22 of the joint member 2 is inserted, and with the insert plate 22 of the joint member 2 installed on the foundation F inserted into the slit 11 of the CLT bearing wall 1, the CLT bearing wall 1 and the insert plate 22 are fixed by nails 3 driven into the surface of the CLT bearing wall 1, thereby installing the CLT bearing wall 1 on the foundation F via the joint member 2 installed on the foundation F.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an installation structure of a wall member made of a wood material, which is installed on a foundation via a joint member installed on the foundation based on a wall member made of a wood material such as a CLT load-bearing wall.

Background Art

[0002] "CLT load-bearing wall" is also called a CLT wall and is constructed using CLT. CLT is an abbreviation for Cross Laminated Timber in English, which refers to a wood material obtained by arranging veneers or the like and laminating and bonding them so that the fiber directions of the wood materials are orthogonal. The construction method of using CLT for wall members and floor members to form a wall structure is called the CLT method. In recent years, its demand has been expanding, and it is used not only for single-family houses but also for condominiums in mid-rise buildings by taking advantage of the heat insulation property unique to wood and the characteristics of the wall structure (see, for example, Patent Document 1).

[0003] By the way, in order to install a CLT load-bearing wall on a foundation, an installation structure of a CLT load-bearing wall has been proposed, which is installed on the foundation via a joint member installed on the foundation (see, for example, Patent Documents 2 to 3). Among these, the installation structure of the CLT load-bearing wall disclosed in Patent Document 2 is to install a CLT load-bearing wall, which is integrally formed by previously attaching a joint member using a drift pin, on the foundation via the joint member. In addition, the installation structure of the CLT load-bearing wall disclosed in Patent Document 3 is to integrate a CLT load-bearing wall having a pin hole formed in advance and a joint member having a pin hole formed in advance and buried and fixed to the foundation using a drift pin, so that the CLT load-bearing wall is installed on the foundation via the joint member.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

[0005] The installation structure of the CLT load-bearing wall disclosed in Patent Documents 2 and 3 had the advantage of being able to reduce the number and types of parts used. On the other hand, in this installation structure of the CLT load-bearing wall, a CLT load-bearing wall in which a joining member is attached and integrated in advance using a drift pin is installed on the foundation via the joining member, or a CLT load-bearing wall in which pin holes are formed in advance and a joining member in which pin holes are formed in advance and buried and fixed to the foundation are integrated using a drift pin, so that the CLT load-bearing wall is installed on the foundation via the joining member. Therefore, construction errors such as anchor bolts and joining members buried in the foundation cannot be absorbed, and there is a problem that it takes time and effort to adjust the CLT load-bearing wall to be accurately installed at the designed installation position on the foundation.

[0006] An object of the present invention is to provide an installation structure of a wall member made of a wood material that can easily perform adjustment for accurately installing a wall member made of a wood material such as a CLT load-bearing wall at a designed installation position on a foundation by being able to absorb construction errors such as anchor bolts buried in the foundation while enjoying the advantage of being able to reduce the number and types of parts used by installing the CLT load-bearing wall of the installation structure of the CLT load-bearing wall disclosed in Patent Documents 2 and 3 on the foundation via a joining member. [Means for Solving the Problems]

[0007] In order to achieve the above object, an installation structure of a wall member made of a wood material is an installation structure of a wall member made of a wood material that is installed on a foundation via a joining member for installing a wall member made of a wood material on the foundation, The joint member includes a fixing portion fixed to the foundation via an anchor bolt and an insertion plate having no counterbore for a fixture. The wall member made of the wood material includes a slit into which the insertion plate of the joint member is inserted. With the insertion plate of the joint member installed on the foundation inserted into the slit of the wall member made of the wood material, the wall member made of the wood material and the insertion plate are fixed by fixtures cast and / or screwed in from the surface of the wall member made of the wood material, so that the wall member made of the wood material is installed on the foundation via the joint member installed on the foundation. It is characterized by this.

[0008] In this case, the joint member can be fixed to the foundation via an anchor bolt such that the surface including the insertion plate coincides with the surface including the slit of the wall member made of the wood material at the designed installation position.

[0009] Also, with the wall member made of the wood material temporarily fixed at the designed installation position, the wall member made of the wood material and the insertion plate can be fixed by fixtures cast and / or screwed in from the surface of the wall member made of the wood material.

Effect of the Invention

[0010] According to the installation structure of the wall member made of wood material of the present invention, by installing the wall member made of wood material on the foundation through the joint member installed on the foundation, it is possible to enjoy the advantage of reducing the number and types of parts used. While installing the joint member on the foundation, then, in a state where an insertion plate having no counterbore for the fixture of the joint member installed on the foundation is inserted into the slit of the wall member made of wood material, the wall member made of wood material and the insertion plate are fixed by fixtures cast and / or screwed from the surface of the wall member made of wood material. By installing the wall member made of wood material on the foundation through the joint member installed on the foundation in this way, it becomes possible to absorb construction errors such as anchor bolts embedded in the foundation, and it is possible to easily perform adjustment for accurately installing the wall member made of wood material at the designed installation position on the foundation.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0012] Hereinafter, embodiments of the installation structure of the wall member made of wood material of the present invention will be described based on the drawings.

[0013] Figures 1 to 4 show an embodiment of the installation structure of the wall member made of wood material of the present invention. The installation structure of the wall member made of wood material installs the CLT shear wall 1 as the wall member made of wood material on the foundation F through the joining member 2. The joining member 2 includes a fixing part 21 fixed to the foundation F through the anchor bolt B and an insertion plate 22 without a pilot hole for the fixture. The CLT shear wall 1 includes a slit 11 into which the insertion plate 22 of the joining member 2 is inserted. With the insertion plate 22 of the joining member 2 installed on the foundation F inserted into the slit 11 of the CLT shear wall 1, the CLT shear wall 1 and the insertion plate 22 are fixed by nails (fasteners) 3 placed from the surface of the CLT shear wall 1, so that the CLT shear wall 1 is installed on the foundation F through the joining member 2 installed on the foundation F.

[0014] In this embodiment, the CLT shear wall 1 used as the wall member made of wood material uses a general-purpose CLT shear wall that has been conventionally used. However, as the wall member made of wood material, in addition to CLT, wood materials that can be used as wall members such as NLT (Nail Laminated Timber) can be widely used. The CLT shear wall 1 is provided with slits 11 into which the insertion plates 22 of the joining member 2 are inserted in a direction parallel to the width direction at both ends in the width direction of the CLT shear wall 1. This slit 11 is formed so that the slit width is slightly larger than the thickness t of the insertion plate 22, usually t + 1.0 to 10.0 mm, preferably t + 2.0 to 8.0 mm, more preferably t + 3.0 to 6.0 mm (in this embodiment, t + 4.5 mm), so that the insertion plate 22 of the joining member 2 shown in Fig. 2 can be smoothly inserted without being affected by the expansion of the CLT shear wall 1 due to moisture absorption. In addition, the dimension w1 in the width direction and the dimension h1 in the height direction of the slit 11 are made to be 10 to 200 mm, preferably 20 to 150 mm, more preferably 30 to 100 mm larger than the dimension w2 in the width direction and the dimension h2 in the height direction of the insertion plate 22 of the joining member 2 shown in FIG. 2, respectively, so as to absorb construction errors such as those of the anchor bolt B embedded in the foundation F (in this embodiment, w1 = w2 + 40 mm, h1 = h2 + 40 mm). Here, the location where the slit 11 is provided is usually provided at both ends in the width direction of the CLT load-bearing wall 1 as shown in this embodiment. However, depending on the size of the CLT load-bearing wall 1, it can be provided at an arbitrary position in the width direction of the CLT load-bearing wall 1, for example, at one location in the middle part in the width direction of the CLT load-bearing wall 1, or at three locations (or more) including the middle part in the width direction of the CLT load-bearing wall 1. In the case of the thick CLT load-bearing wall 1, the slit 11 is formed in a plurality of layers (two layers or three or more layers) by changing the position in the thickness direction of the CLT load-bearing wall 1. Correspondingly, a plurality of (two or three or more) joining members 2 can be used, or a joining member 2 provided with a plurality of (two or three or more) insertion plates 22 can be used. Also, the lower part 12 of the slit 11 of the CLT load-bearing wall 1 is cut out so as not to interfere with the joining member 2.

[0015] The joining member 2 is made of a metal member such as iron, and as shown in FIG. 2, includes a fixing part 21 fixed to the foundation F via an anchor bolt B and an insertion plate 22. The fixing part 21 is composed of a bottom plate part 21a, a rising part 21b, and a reinforcing part 21c, and is formed by welding metal plates with a predetermined thickness (in this embodiment, for the bottom plate part 21a, 16×100 mm, for the rising part 21b, 12×100 mm, and for the reinforcing part 21c, 6×65 mm flat steel (SS400)) according to the required strength. The bottom plate portion 21a of the fixing portion 21 is provided with a through hole 21d through which the anchor bolt B is inserted. This through hole 21d is formed as a long hole so as to absorb the construction error of the anchor bolt B. The rising portion 21b of the fixing portion 21 is provided with a through hole 21e for operating the nut N screwed onto the anchor bolt B. so that it can be operated. The insertion plate 22 is made of a rectangular metal plate with a predetermined thickness (in this embodiment, a flat steel (SS400) of 4.5×100×400 mm) according to the required strength, and is welded to the rising portion 21b of the fixing portion 21. Here, the insertion plate 22 is made of a plate material without a pilot hole (without forming a pilot hole) for the fixture in order to fix the CLT load-bearing wall 1 and the insertion plate 22 at an unspecified position (the designed installation position (X direction, Y direction, Z direction) of the CLT load-bearing wall 1) by the nail (fixture) 3. In addition, marks may be provided on the surface of the CLT load-bearing wall 1 as a guide when driving the nails 3. Further, as shown in FIG. 3, the joining member 2 may have a structure in which the insertion plate 22 is extended to the bottom plate portion 21a of the fixing portion 21 and is reinforced by the rising portions 21b of the fixing portion 21 disposed on both surfaces of the insertion plate 22.

[0016] As the nail 3 used to fix the CLT load-bearing wall 1 and the insertion plate 22 of the joining member 2, a quenched nail for steel plates that can penetrate the metal insertion plate 22 by using a nail driver can be preferably used (in this embodiment, for the nail driver, a high-pressure coil nailer HN-90N5 manufactured by Max Co., Ltd. is used, and for the nail 3, Max Co., Ltd. MAX sheet connecting screw (quenched nail for steel plates) CAP65W4-H and FAP50V9 are used.). The number of nails 3 to be used is set to use about 10 to 100 nails 3 according to the required strength (in this embodiment, 2×10×2 = 40 nails 3 are driven from both sides of the surface of the CLT load-bearing wall 1, but if the required strength is obtained, the nails 3 may be driven only from the surface of one side of the CLT load-bearing wall 1.). Here, in addition to the above-described nails 3, for the fixture used to fix the CLT shear wall 1 and the insertion plate 22 of the joining member 2, any fixture that can penetrate a metal insertion plate 22 having no pilot hole for the fixture can be used. For example, concrete nails (including stepped concrete nails), drill screws (e.g., the iron plate penetration screw "Paneled Drill" (trade name) manufactured by Synergic Co., Ltd.), etc. can be used. And, for driving and / or screwing in the fixture, any power tool or hand tool corresponding to the fixture can be used.

[0017] Next, a method for constructing a CLT shear wall to which the installation structure of this CLT shear wall is applied will be described with reference to FIGS. 1 and 4. (1) Construct a foundation F in which anchor bolts B are embedded at predetermined positions. (2) Finish the upper surface of the foundation F to be a horizontal plane, and fix the fixing portion 21 of the joining member 2 to the foundation F via the anchor bolts B (and nuts N) such that the surface including the insertion plate 22 coincides with the surface including the slit 11 of the CLT shear wall 1 at the designed installation position of the CLT shear wall 1. Thereby, alignment in the Y direction can be achieved (the construction error in the Y direction of the anchor bolts B embedded in the foundation F can be absorbed). (3) Install columns 4 at predetermined positions of the foundation F (in accordance with the designed installation positions (X direction, Y direction, Z direction) of the CLT shear wall 1) (FIG. 4(a)). The height of the columns 4 is set in accordance with the designed installation position of the CLT shear wall 1 (in this embodiment, the upper end of the column 4 coincides with the upper end of the CLT shear wall 1). In this case, it is not necessarily required that the upper surface of the foundation F and the lower end surface of the CLT shear wall 1 be in contact with each other. By setting the designed installation position of the CLT shear wall 1 such that a slight gap is formed, construction errors such as unevenness on the upper surface of the foundation F can be absorbed. (4) Suspend the CLT shear wall 1 fixed to the beam 5 between the four built-in columns (Fig. 4(b)), and temporarily fix the CLT shear wall 1 by spanning the beam 5 over the upper ends of the columns 4 (Fig. 4(c)). At this time, the insertion plate 22 of the joining member 2 is inserted into the slit 11 of the CLT shear wall 1 (at this time, in the CLT shear wall 1, the Y direction is restricted with respect to the insertion plate 22 of the joining member 2, and the X and Z directions are not restricted). By doing this, the CLT shear wall 1 can be temporarily fixed according to the designed installation position (X direction, Y direction, Z direction) of the CLT shear wall 1. (5) With the CLT shear wall 1 temporarily fixed at the designed installation position, drive nails 3 from both sides of the surface of the CLT shear wall 1 to fix the CLT shear wall 1 and the insertion plate 22 of the joining member 2, and then install the CLT shear wall 1 on the foundation F through the joining member 2 installed on the foundation.

[0018] As described above, the installation structure of the wall member made of the wood material of the present invention has been described based on its embodiments. However, the present invention is not limited to the configuration described in the above embodiments, and its configuration can be appropriately changed without departing from the gist thereof.

Industrial Applicability

[0019] The installation structure of the wall member made of the wood material of the present invention has the advantage of being able to reduce the number and types of parts used, and by being able to absorb construction errors such as anchor bolts embedded in the foundation, it is possible to easily perform adjustments for accurately installing wall members made of wood materials such as CLT shear walls at the designed installation positions on the foundation. Therefore, it can be suitably used for applications where wall members made of wood materials such as CLT shear walls are installed.

Explanation of Reference Numerals

[0020] 1 CLT shear wall (wall member made of wood material) 11 Slit 12 Lower part (notch) 2 Joining member 21 Fixing part 21a Bottom plate part 21b Rising part 21c Reinforcing part 21d Through hole 21e Through hole 22 Insertion plate 3 Nail (fastener) 4 Column 5 Beam F Foundation B Anchor bolt N Nut

Claims

1. A wall member installation structure made of a wood material, which is installed on a foundation through a joint member installed on the foundation with a wall member made of a wood material as a base, wherein the joint member includes a fixing portion fixed to the foundation through an anchor bolt and a plug plate having no pilot hole for a fixture, the wall member made of the wood material includes a slit into which the plug plate of the joint member is inserted, when the wall member made of the wood material is temporarily fixed at a designed installation position and the plug plate of the joint member installed on the foundation is inserted into the slit of the wall member made of the wood material, the wall member made of the wood material and the plug plate are fixed by a fixture placed and / or screwed from the surface of the wall member made of the wood material, so that the wall member made of the wood material is installed on the foundation through the joint member installed on the foundation. A wall member installation structure made of a wood material, characterized by the above.

2. The joint member is fixed to the foundation through an anchor bolt such that the surface including the plug plate coincides with the surface including the slit of the wall member made of the wood material at the designed installation position. A wall member installation structure made of a wood material according to claim 1, characterized by the above.

Images