JP2005307517A - Bearing wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bearing wall which enables a floor to be easily constructed, and which reduces construction cost of a building excellent in earthquake resisting performance. <P>SOLUTION: A gap 10, wherein a floor surface material 9 can be arranged, is provided between a top surface 3A of a sill 3 and a lower end surface 7C of structural plywood 7, and an edge part 9A of the floor surface material 9 can be placed from either side of a frame material 6 of the bearing wall 1. This dispenses with a floor bearing member for bearing the floor surface material 9, and facilitates construction work for the floor. Additionally, a surface 7A of the structural plywood 7 is prevented from protruding outward with respect to a side surface 4C of a column 4, so that the thicknesses of the bearing wall 1 and the non-bearing wall 20 can be uniformalized, and so that an exterior wall 25 or an interior wall 21 can be formed of the bearing wall 1 and the non-bearing wall 20. In this case, an adjusting material for adjusting a surface position is made unnecessary, and construction work for the exterior wall 25 and the interior wall 21 is facilitated. Consequently, the construction costs of the building excellent in the earthquake resisting performance can be reduced. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a load bearing wall that is provided on an outer wall portion or an inner wall portion of a building such as a house and bears a load resistance against a horizontal external force applied to the building.

Conventionally, in a building such as a wooden house, a load bearing wall forming an outer wall or an inner wall has been used in order to bear a load resistance against a horizontal external force applied to the building.
As such a load-bearing wall, vertical shaft assemblies such as columns extending in the vertical direction are erected on both side positions, and horizontal axes such as foundations and beams extending horizontally in the upper and lower ends of these vertical shaft assemblies. Generally, a rectangular frame material is formed by connecting with an assembly material, and a structural surface material such as a structural plywood is attached to the frame material to block the entire opening of the frame material.
Here, the side surface of the vertical shaft assembly is provided with a notch formed by notching the edge portion in a stepped shape. By this notch, the shank surface into which the structural face material is fitted is formed in the vertical shaft assembly. By attaching the structural face material to the shank surface, the surface of the structural face material forms the same surface as the side surface of the vertical shaft assembly.

Moreover, the notch part formed by notching an edge part to a step shape is provided in the side surface of the horizontal shaft assembly material like the vertical shaft assembly material. Due to this notch, the shank surface into which the structural face material is fitted is formed in the horizontal shaft assembly. By attaching a structural surface material to the shank surface, the surface of the structural surface material forms the same surface as the side surface of the horizontal shaft assembly (for example, see Patent Document 1).
With such a bearing wall, large rigidity can be secured, so even if an inner wall or an outer wall is formed in combination with a non-bearing wall that does not bear horizontal bearing strength, the earthquake resistance performance of the building can be sufficiently improved, Since it has a simple structure in which a structural face material is simply attached to a frame, it can be combined with a low-cost non-bearing wall to reduce the construction cost of a building having excellent seismic performance.

At this time, since the entire opening of the bearing wall frame material is closed with the structural surface material, the top surface of the floor-side horizontal shaft assembly disposed below is structured when viewed from the structural surface material side. Concealed by the facing material. For this reason, when trying to form a floor on the structural surface material side, the edge of the floor surface material for forming the floor surface or the end of the joist supporting the lower surface of the floor surface material is placed on the floor side horizontal axis. Since it cannot be put on the upper surface of the assembled material, a floor receiving member or a joist member is fixed to the side surface of the floor side horizontal shaft assembled material, and the floor material or joist is supported by these members.
On the other hand, the frame material of a general non-bearing wall has no structural face material attached to its side surface, and the upper surface of the floor side horizontal shaft assembly is exposed from any side. For this reason, since the floor surface material and joists can be placed on the upper surface of the floor side horizontal shaft assembly material, when supporting the floor surface material, the floor receiving members and joists hanging on the side surface of the floor side horizontal shaft assembly material There is no need to fix the member.
Japanese Patent No. 2948716 (page 3, FIG. 1)

When the outer wall or the inner wall is formed in combination with the non-bearing wall in the bearing wall as described above, a floor receiving member for supporting the floor is formed on the bearing wall side when the floor is formed along the outer wall or the inner wall. Since a joist member is required, it is necessary to fix the floor receiving member and joist member, which should not be necessary, to the side of the non-bearing wall corresponding to the bearing wall. As a result, there is a problem of increasing the construction cost of a building having excellent earthquake resistance.
Accordingly, each invention described in each claim has been made in view of the above-described problems of the prior art, and the object of the invention is to easily construct a floor and improve seismic performance. It is to provide a load-bearing wall that will reduce the construction cost of an excellent building.

Each invention described in each claim is made to achieve the above-mentioned object. The features of each invention will be described below with reference to the embodiments of the invention shown in the drawings.
In addition, a code | symbol shows the code | symbol used in embodiment of this invention, and does not limit the technical scope of this invention.
(Claim 1)
(Feature point)
The invention described in claim 1 is characterized by the following points.
That is, the invention according to claim 1 is a quadrangular frame member (6) formed of a horizontal shaft assembly (3, 5) extending in the horizontal direction and a vertical shaft assembly (4) extending in the vertical direction; A load bearing wall (1) provided with a structural face material (7) attached to the frame material (6) so as to close the opening of the frame material (6) in order to ensure the strength against horizontal force. Thus, the surface of the vertical shaft assembly (4) is recessed so that the surface of the structural surface material (7) does not protrude outward from the side surface of the vertical shaft assembly (4). , 4F), and the structural face material (7) is in the vertical shaft assembly in a state where the edge portion (7B) of the structural face material (7) is disposed in the recess (4D, 4F). An upper surface (3A) of the floor-side horizontal shaft assembly (3) disposed on the floor side of the horizontal shaft assembly (3, 5) and the structural surface member (7) ) Between the lower end surface (7C) and the space (10) where the floor material (9) can be placed Vignetting wherein the are.

In addition, as a dent part of the invention described in claim 1, among the four side surfaces of the vertical shaft assembly material, the side surface (4C) to which the structural surface material (7) is attached is recessed in a stepped shape. And a pair of stepped portions (4D) in which the edge portion (7B) of the structural face material (7) can be fitted, or disposed on both sides of the structural face material (7). It is formed by denting the opposite side surfaces (4E) of the vertical shaft assembly (4) into a groove shape, and adopts the groove (4F) etc. into which the edge of the structural face material (7) is inserted it can.
(Claim 2)
(Feature point)
The invention described in claim 2 is the invention described in claim 1, and has the following characteristic points.

That is, the invention according to claim 2 is characterized in that the surface (7A) of the structural face material (7) and the side surface (4C) of the vertical shaft assembly (4) are substantially flush with each other. (4) A stepped portion (4D) in which the side surface (4C) is recessed in a stepped shape is provided as the recessed portion.
(Claim 3)
(Feature point)
The invention described in claim 3 is the invention described in claim 2 described above, and has the following characteristics.
That is, in the invention according to claim 3, the step of the vertical shaft assembly (4) is formed by a plurality of nails (8) driven at a predetermined pitch along the longitudinal direction of the step (4D). The edge (7B) of the structural face material (7) is attached to the portion (4D), and the predetermined pitch is set in a range of 50 mm or more and less than 200 mm.

(Claim 4)
(Feature point)
The invention described in claim 4 is the invention described in any one of claims 1 to 3 described above, and has the following characteristic points.
That is, the invention according to claim 4 is a horizontal shaft assembly (3, 3) in which an inner wall base surface material (22) for forming an inner wall surface is attached to both surfaces of the frame material (6) and extends in the horizontal direction. 5) and a vertical frame assembly (4) extending in the vertical direction are attached to both sides of a rectangular frame member (6) with an inner wall base material (22) for forming an inner wall surface. The inner wall (21) is provided so as to be continuous with the bearing wall (20) and partitions the space in the building together with the non-bearing wall (20).

(Claim 5)
(Feature point)
The invention described in claim 5 is the invention described in claim 4 described above, and has the following characteristic points.
That is, the invention according to claim 5 is that both the edge portions (9A) of the floor surface material (9) forming the floor of the room provided on both sides of the frame material (6) are the floor side horizontal shaft assembly. It is placed on the upper surface (3A) of (3).
(Claim 6)
(Feature point)
The invention described in claim 6 is the invention described in any one of claims 1 to 3 described above, and has the following characteristic points.

That is, in the invention described in claim 6, an inner wall base surface material (22) for forming an inner wall surface is attached to one surface of the frame material (6), and the other surface of the frame material (6) is attached. A rectangular shape formed by a horizontal shaft assembly (3, 5) extending in the horizontal direction and a vertical shaft assembly (4) extending in the vertical direction, to which the outer wall finishing surface material (26) forming the outer wall surface is attached. An inner wall base surface material (22) for forming an inner wall surface is attached to one surface of the frame material (6), and an outer wall finishing surface material (an outer wall surface is formed on the other surface of the frame material (6)). 26) is provided so as to be continuous with the non-bearing wall (20) to which it is attached, and forms an outer wall (25) together with the non-bearing wall (20).
(Claim 7)
(Feature point)
The invention described in claim 7 is the invention described in claim 6, and has the following characteristics.

  That is, the invention according to claim 7 is such that the surface (7A) of the structural face material (7) that is substantially flush with the side face (4C) of the vertical shaft assembly (4) faces the indoor side. And the heat insulating material (27) is arranged so that the back side surface opposite to the surface (7A) of the structural face material (7) faces the outdoor side, and covers the back side surface. Is provided.

(Effect of Claim 1)
The present invention configured as described above has the following effects.
That is, according to the first aspect of the present invention, there is a gap between the upper surface of the floor-side horizontal shaft assembly and the lower end surface of the structural surface material. When viewed from either side of the material, the upper surface of the floor-side horizontal shaft assembly is exposed. For this reason, since the floor surface material and joists can be placed on the upper surface of the floor side horizontal shaft assembly material, when supporting the floor surface material, the floor receiving members and joists hanging on the side surface of the floor side horizontal shaft assembly material There is no need to fix the member.
In addition, since the surface of the structural surface material attached to the frame material does not protrude outward from the side surface of the frame material, it is applied to the frame material of the load-bearing wall when forming the outer wall or inner wall in combination with the non-bearing wall. The surface of the outer wall finishing surface material or the inner wall base surface material thus formed and the surface of the outer wall finishing surface material or the inner wall base surface material attached to the frame material of the non-bearing wall form the same surface. Thereby, in order to align the surface position of the outer wall finishing surface material or inner wall base surface material on the non-bearing wall side with the bearing wall side, it is not necessary to attach an adjusting material for adjusting the surface position.

Therefore, when forming the outer wall or the inner wall in combination with the non-bearing wall, an adjustment material for adjusting the surface position of the outer wall finishing surface material or the inner wall base surface material becomes unnecessary, and the work for constructing the outer wall and the inner wall can be easily performed. When a floor is formed along an outer wall or an inner wall formed in combination with a non-bearing wall, a floor receiving member or a joist member for supporting the floor surface material is not required, and the construction work of the floor is easy. As a result, the construction cost of a building having excellent earthquake resistance can be reduced.
(Effect of claim 2)
According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the following effect is obtained.

That is, according to the second aspect of the present invention, the side surface of the structural face material is recessed in a stepped shape to form the stepped portion, rather than the process of forming the groove portion by recessing the side surface of the vertical shaft assembly material in the groove shape. It is easier to process, and if the groove is adopted, the structural surface material can only be assembled before the horizontal shaft assembly and the vertical shaft assembly are assembled, whereas the stepped portion is used. As a result, it is possible to assemble the structural surface material even after forming the frame material by assembling the horizontal shaft assembly material and the vertical shaft assembly material, making it easier to construct the bearing wall and improving work efficiency. Can be achieved.
(Effect of claim 3)
According to invention of Claim 3, in addition to the effect of invention of Claim 2 mentioned above, there exist the following effects.

That is, according to the third aspect of the present invention, the structural face material is attached to the vertical shaft assembly material by the plurality of nails struck at a predetermined pitch as described above, so that the structural face material is converted into the vertical shaft assembly material. As a result, a sufficient rigidity can be imparted to the bearing wall and the seismic performance of the building can be improved.
(Effect of claim 4)
According to the invention described in claim 4, in addition to the effect of the invention described in claim 3, the following effect is obtained.
That is, according to the invention described in claim 4, as described above, when the inner wall is formed in combination with the non-bearing wall, the adjusting material for adjusting the surface position of the inner wall base surface material is provided on the non-bearing wall side. This eliminates the need for the construction of the inner wall and facilitates the work of constructing the inner wall. Further, even if the structure of the bearing wall is added to a part of the inner wall, the thickness dimension does not increase, and the indoor space can be prevented from being reduced.

(Effect of Claim 5)
According to the invention described in claim 5, in addition to the effect of the invention described in claim 4, the following effect can be obtained.
That is, according to the invention described in claim 5, as described above, a gap is provided between the upper surface of the floor-side horizontal shaft assembly and the lower end surface of the structural face material, and the floor material is placed on the floor side through this gap. It can be mounted on the upper surface of the horizontal shaft assembly. For this reason, in forming the floor on both sides of the inner wall, the floor structure can be simplified because any floor receiving member or joist member for supporting the flooring material is not required for any floor. Work to build the floor can be reduced, and the construction cost of a building with excellent earthquake resistance can be reduced.

(Effect of claim 6)
According to the invention described in claim 6, in addition to the effects of the invention described in any one of claims 1 to 3, the following effects can be obtained.
That is, according to the invention of claim 6, as described above, when forming the outer wall using the non-bearing wall, the surface positions of the outer wall finishing surface material and the inner wall base surface material are respectively set on the non-bearing wall side. It is no longer necessary to provide an adjustment material to adjust, and the work of constructing the outer wall can be easily performed, and even if a load-bearing wall structure is added to a part of the outer wall, the thickness dimension does not increase, preventing indoor space from being reduced. can do.

(Effect of Claim 7)
According to the invention described in claim 7, in addition to the effect of the invention described in claim 6, the following effect can be obtained.
That is, according to the seventh aspect of the present invention, the outer wall finishing surface material and the inner wall base surface material are attached to the side surface of the frame material provided in the bearing wall with the same mounting structure as the frame material of the non-bearing wall. Is possible. In addition, if the inner wall base material is attached to the frame material so that indoor airtightness is ensured, the outer wall finishing surface material may be attached to the frame material so that ventilation between the inside of the outer wall and the outdoor side is allowed. The high airtightness of the building will not be impaired.

  Here, the frame of the load-bearing wall is closed on the indoor side with the structural surface material and opened on the outdoor side, so that ventilation between the inside of the outer wall and the outdoor side is allowed as described above. As described above, when the outer wall finishing surface material is attached to the frame member, moisture inside the outer wall can be released to the outside. For this reason, even if dew condensation occurs inside due to the temperature difference between the inside of the outer wall and the outdoor side, the moisture from the condensation is quickly discharged to the outside, the humidity inside the outer wall is always kept low, and the moisture is kept indoors. It is possible to prevent entry.

Hereinafter, an embodiment which is the best mode for carrying out the present invention will be described with reference to the drawings.
1 to 5 are diagrams showing this embodiment. FIG. 1 is a front view showing a load-bearing wall according to the present embodiment, FIG. 2 is an enlarged cross-sectional view showing the main part of the load-bearing wall according to the present embodiment, and FIG. 3 is a cross-sectional view showing the inner wall according to the present embodiment. 4 is a sectional view in the vicinity of the floor surface showing the inner wall according to the present embodiment, FIG. 5 is a sectional view showing the outer wall in accordance with the present embodiment, and FIG. 6 is a floor surface vicinity showing the outer wall in accordance with the present embodiment. FIG.
As shown in FIG. 1, the bearing wall 1 according to the present embodiment is constructed on a foundation 2 placed on the ground. That is, the base 3 which is a horizontal shaft assembly extending in the horizontal direction is placed on the upper end surface 2A of the foundation 2. On the upper surface 3A of the base 3, a plurality of pillars 4 which are vertical shaft assemblies extending in the vertical direction are erected at predetermined intervals. The upper ends of these columns 4 are connected to each other by a beam 5 that is a horizontal shaft assembly. The base 3, the beam 5, and the pillar 4 form a rectangular frame material 6. The load bearing wall 1 has a structural plywood 7 that is a structural face material attached to the frame member 6 so as to close the opening 6A of the frame member 6 in order to secure the load bearing wall 1 against the horizontal force. It has become.

Here, on each of the upper surface 3A of the base 3 and the lower surface 5A of the beam 5, tenon holes 3B and 5B are formed at positions where the columns 4 are to be installed. On the other hand, on both end faces of the pillar 4, there is provided a relief 4A formed corresponding to each of the relief holes 3B and 5B. The column 4 is joined to each of the base 3 and the beam 5 with the base 4 and the side holes 4B of the base 3 and the beam 5 being fitted into the base holes 3B and 5B, respectively. The column 4 and the beam 5 form a frame member 6.
Further, as shown in FIG. 2, the surface 4A of the structural plywood 7 is not recessed in the column 4 so that the surface 7A of the structural plywood 7 does not protrude outward from the side surface 4C of the column 4. Is provided. The dent (4D) is formed by stepping the side surface 4C on which the structural plywood 7 is pasted, among the four side surfaces of the pillar 4, and the edge portion 7B of the structural plywood 7 is fitted. It is a stepped part 4D that can be inserted. The edge portion 7B of the structural plywood 7 is disposed on the stepped portion 4D, whereby the surface 7A of the structural plywood 7 and the side surface 4C of the column 4 are substantially flush with each other.

As shown in FIGS. 1 and 2, the structural plywood 7 has a plurality of struck at a predetermined pitch along the longitudinal direction of the stepped portion 4D in a state where the edge portion 7B is disposed on the stepped portion 4D. The nail 8 is attached to the column 4. At this time, the pitch P of the plurality of nails 8 that attach the structural plywood 7 to the column 4 is set in a range of 50 mm or more and less than 200 mm, thereby ensuring the bonding strength of the structural plywood 7 to the column 4. As a result, the load bearing wall 1 is sufficiently secured against the horizontal force.
Of the horizontal shaft members 3 and 5 disposed above and below the frame member 6, the upper surface 3A of the base 3 that is the floor side horizontal shaft member disposed on the floor side and the lower end surface 7C of the structural plywood 7 There is a gap 10 between which the floor material 9 can be placed.

The floor member 9 constituting the floor of the load bearing wall 1 on the structural plywood 7 side is inserted into the gap 10 and is placed on the upper surface 3A of the base 3.
Of the horizontal shaft assemblies 3 and 5 disposed above and below the frame member 6, the lower surface 5A of the beam 5 which is the ceiling-side horizontal shaft assembly disposed on the ceiling side and the upper end surface 7D of the structural plywood 7 A gap 12 in which the ceiling member 11 can be placed is provided between them.
The ceiling surface material 11 constituting the ceiling on the structural plywood 7 side of the load bearing wall 1 is arranged so that the edge portion is inserted into the gap 12 and is in contact with the lower surface 5A of the beam 5. .
In the load bearing wall 1 configured in this way, a structural hardware 13 such as a hole-down hardware is fixed near the lower end of the column 4. On the other hand, from the upper end surface 2A of the foundation 2, a distal end portion of an anchor bolt 14 having a base end portion embedded in the foundation 2 protrudes. The structural hardware 13 on the bearing wall 1 side is joined to the anchor bolt 14 on the foundation 2 side by a nut 13A, and thereby the column 4 of the bearing wall 1 is fixed to the foundation 2.

The bearing wall 1 as described above is combined with a non-bearing wall 20 in which the structural plywood 7 is omitted from the bearing wall 1 to form an inner wall 21 that partitions the space inside the building as shown in FIGS. Can do. Hereinafter, the inner wall 21 will be described.
Like the bearing wall 1, the non-bearing wall 20 includes a rectangular frame member 6 formed by the base 3, the beam 5, and the column 4, but the structural plywood 7 is omitted. In this case, it has a structure made of a simple rectangular frame member 6. Note that the stepped portion 4D of the column 4 constituting the non-bearing wall 20 is also omitted.
The inner wall 21 is configured such that the bearing wall 1 and the non-bearing wall 20 are arranged continuously along the position where the inner wall 21 is to be installed.

That is, the inner wall base surface material 22 such as a gypsum board forming the base of the inner wall surface is attached to both surfaces of the frame member 6 of the bearing wall 1 as shown in FIG. On the other hand, on both surfaces of the frame member 6 of the non-bearing wall 20, similarly to the bearing wall 1, an inner wall base surface material 22 for forming an inner wall surface is attached. The inner wall base material 22 attached to both surfaces of the frame member 6 on the load bearing wall 1 side is continuous with the inner wall base material 22 attached to both surfaces of the frame member 6 on the non-bearing wall 20 side. ing. As a result, the inner wall 21 is formed by the bearing wall 1 and the non-bearing wall 20.
In addition, a sound insulating material 23 is filled between the inner wall base material 22 attached to both sides of the bearing wall 1 and the non-bearing wall 20.

Here, as shown in FIG. 4, the floor surface material 9 forming the floor of the room provided on both sides of the inner wall 21, in other words, on both sides of the frame member 6, the edge portion 9 </ b> A interferes with the pillar 4. In order to avoid this, an escape portion 24 that is a notch corresponding to the planar shape of the pillar 4 is formed.
Further, the base 3 which is a floor side horizontal shaft assembly provided on the frame member 6 of the bearing wall 1 and the non-bearing wall 20 extends along a position where the inner wall 21 is to be installed.
The edge portions 9A of the floor member 9 arranged on both sides of the inner wall 21 are both placed on the upper surface 3A of the base 3. Among these, the edge portion 9A of one floor material 9 reaches the upper surface 3A of the base 3 through a gap 10 (not shown) below the structural plywood 7.

Further, the bearing wall 1 as described above can be combined with the non-bearing wall 20 to form an outer wall 25 installed on the outer periphery of the building as shown in FIGS. Hereinafter, the outer wall 25 will be described.
The outer wall 25 is configured such that the bearing wall 1 and the non-bearing wall 20 are arranged continuously along the outer peripheral portion of the building.
That is, the right side surface of the load bearing wall 1 in FIGS. 5 and 6 is the indoor side, and the inner wall surface of the frame member 6 provided on the load bearing wall 1 is the inner wall surface as shown in FIG. An inner wall base surface material 22 for forming is pasted. On the other hand, on the indoor side surface of the frame member 6 provided on the non-bearing wall 20, as with the load-bearing wall 1, an inner wall base surface member 22 for forming an inner wall surface is attached.

The left side surface of the load bearing wall 1 in FIGS. 5 and 6 is the outdoor side, and the outer wall surface of the frame member 6 provided on the load bearing wall 1 is an outer wall surface as shown in FIG. The outer wall finishing material 26 such as fire siding to be formed is attached. At this time, the frame member 6 of the bearing wall 1 is arranged so that the surface 7A of the structural plywood 7 that is substantially flush with the side surface 4C of the column 4 faces the indoor side. It is arranged so that the opposite back side faces the outdoor side.
On the other hand, on the indoor side surface of the frame member 6 provided on the non-bearing wall 20, as with the load-bearing wall 1, an outer wall finishing surface material 26 that forms an outer wall surface is attached.
The inner wall base material 22 attached to the indoor side of the frame member 6 on the load bearing wall 1 side is opposite to the inner wall base material 22 attached to the indoor side of the frame member 6 on the non-bearing wall 20 side. The outer wall finishing surface material 26 which is continuous and attached to the outdoor side of the frame member 6 on the load bearing wall 1 side is mutually connected to the outer wall finishing material 26 attached to the outdoor side of the frame member 6 on the non-bearing wall 20 side. The surface of is continuous. As a result, the outer wall 25 is formed by the bearing wall 1 and the non-bearing wall 20.

A heat insulating material 27 is filled between the inner wall base surface material 22 and the outer wall finishing surface material 26 attached to the bearing wall 1 and the non-bearing wall 20. Here, the heat insulating material 27 is provided so as to cover the back side surface that is opposite to the surface 7A of the structural plywood 7.
Here, as shown in FIG. 6, the floor material 9 that forms the floor of the room provided on the indoor side of the outer wall 25, in other words, on the indoor side of the frame member 6, has an edge portion 9 </ b> B that is a pillar 4. In order to avoid interference, an escape portion 28 that is a notch corresponding to the planar shape of the pillar 4 is formed.
Moreover, the base 3 provided in the frame material 6 of the bearing wall 1 and the non-bearing wall 20 extends along the outer peripheral portion of the building. The edge portion 9B of the floor surface material 9 disposed on the indoor side of the outer wall 25 reaches the upper surface 3A of the base 3 through a gap 10 (not shown) below the structural plywood 7.

In addition, the load bearing wall 1 forming the outer wall 25 has a synthetic resin sheet (not shown) attached to the entire side surface facing the indoor side. This synthetic resin sheet is highly airtight, blocking the flow of gas, and is attached to the side surface of the load bearing wall 1, in other words, between the structural plywood 7 and the inner wall base material 22. The airtightness between the indoor side and the outdoor side of the bearing wall 1 is ensured. And the area | region of the outdoor side rather than the structural plywood 7 in the inside of the outer wall 25 can perform external air and ventilation.
On the other hand, the non-bearing wall 20 forming the outer wall 25 is secured to the outdoor side by a storage bag (not shown) in which the heat insulating material 27 is stored. That is, the heat insulating material 27 provided in the non-bearing wall 20 is stored in a storage bag (not shown) made of synthetic resin. The peripheral portion of the storage bag is provided with an ear portion that is a protruding portion of the sheet material forming the storage bag. The ear portion of the storage bag is interposed between the frame member 6 and the inner wall base surface material 22 and closes the gap between the frame member 6 and the inner wall base surface material 22. Thereby, high airtightness between the indoor side and the outdoor side of the non-bearing wall 20 is ensured.

The bearing wall 1 and the non-bearing wall 20 are not limited to those provided on the first floor, but may be provided on the second floor. At this time, of the horizontal shaft members included in the frame member 6, the lower horizontal shaft member is not a base placed on the foundation but a beam supported by the column.
In addition, the bearing wall 1 and the non-bearing wall 20 are not limited to those obtained by cutting and combining the shaft assembly material and plywood, etc., in the raw material state at the building site, but also up to the state of the frame material 6 at the factory or the like. After assembling, or after assembling until the inner wall base surface material 22 and the outer wall finishing surface material 26 are pasted on both sides of the frame material 6, the material conveyed to the construction site can also be adopted.
According to this embodiment as described above, the following effects can be obtained.

In other words, a gap 10 in which the floor material 9 can be arranged is provided between the upper surface 3A of the base 3 constituting the bearing wall 1 and the lower end surface 7C of the structural plywood 7, and the structural plywood 7 is attached to the frame material. Since the top surface 3A of the base 3 is exposed from any side of the base plate 6, when the floor is formed so as to be in contact with the bearing wall 1, the end of the floor surface material 9 is formed on the top surface 3A of the base 3 The edge portions 9A and 9B can be placed, a floor receiving member for supporting the floor material 9 is not required, and there is no need to perform the work of fixing the floor receiving member to the side surface of the base 3, thereby facilitating the construction work of the floor. Can be.
Further, the surface 7A of the structural plywood 7 attached to the frame member 6 of the load bearing wall 1 is prevented from protruding outward from the side surface 4C of the column 4 forming the frame member 6, and thereby the non-bearing wall 20 and When forming the outer wall 25 or the inner wall 21 in combination, the outer wall finishing surface material attached to the frame material 6 of the load bearing wall 1 is not required to attach the adjusting material for adjusting the surface position to the frame material 6 of the non-bearing wall 20. Since the surface of 26 or the inner wall base material 22 and the surface of the outer wall finishing material 26 attached to the frame material 6 of the non-bearing wall 20 or the surface of the inner wall base material 22 form the same surface, adjustment It is no longer necessary to align the surface position of the outer wall finishing surface material 26 or the inner wall base surface material 22 on the non-bearing wall 20 side to the bearing wall 1 side using a material, and the construction work of the outer wall 25 and the inner wall 21 can be facilitated. .

As described above, even if the load-bearing wall 1 is adopted as the structure of the building, the construction work of the floor and the construction work of the outer wall 25 and the inner wall 21 can be easily performed, thereby reducing the construction cost of the building having excellent seismic performance. be able to.
Furthermore, as the recessed portion of the column 4, the stepped portion 4D having the side surface 4C recessed in a stepped shape is adopted, so that the processing of the column 4 can be facilitated, and by adopting the stepped portion, the base 3 and Even after the beam 5 and the column 4 are assembled to form the frame material 6, the structural plywood 7 can be assembled to the frame material 6, so that the work for constructing the bearing wall 1 is facilitated and the work efficiency is improved. Can be achieved.
Further, since the structural plywood 7 is attached to the column 4 by hitting a plurality of nails 8 at a predetermined pitch, the bonding strength of the structural plywood 7 to the column 4 is sufficiently secured, and the bearing wall 1 Can be given great rigidity, and the seismic performance of the building can be improved.

Furthermore, when the inner wall 21 is formed by the bearing wall 1 using the non-bearing wall 20 together, it is not necessary to provide an adjusting material for adjusting the surface position of the inner wall base material 22 on the non-bearing wall 20 side. The work of constructing 21 can be easily performed, and even if a part of the inner wall 21 is used as the load-bearing wall 1, the thickness dimension of the inner wall 21 does not increase and the reduction of the indoor space can be prevented.
In addition, a gap 10 is provided between the upper surface 3A of the base 3 and the lower end surface 7C of the structural plywood 7, and the floor material 9 can be placed on the upper surface 3A of the base 3 through the gap 10. FIG. As described above, when the floor is formed on both the left and right sides of the inner wall 21, the floor receiving member and the joisting member for supporting the floor material 9 are not required for the right and left floors of the inner wall 21. The floor structure can be simplified, the construction work of the floor can be reduced, and the construction cost of a building having excellent earthquake resistance can be reduced.

Furthermore, when forming the outer wall 25 using the non-bearing wall 20, it is not necessary to provide an adjusting material for adjusting the surface positions of the outer wall finishing surface material 26 and the inner wall base surface material 22 on the non-bearing wall 20 side. Therefore, the work of constructing the outer wall 25 can be easily performed, and even if a part of the outer wall 25 is used as the load-bearing wall 1, the thickness dimension of the outer wall 25 is not increased, and the reduction of the indoor space can be prevented.
Further, the bearing wall 1 and the non-bearing wall 20 forming the outer wall 25 are composed of the frame member 6, the inner wall base material 22 attached to the frame member 6, and the frame member 6 and the inner wall base material 22. The inside of the outer wall 25 and the outdoor side are secured with a sealing agent filled in between, so that the inside of the outer wall 25 can be ventilated with the outside air, and the frame member 6 provided on the load bearing wall 1 Since the indoor side surface is closed with the structural plywood 7 and the outdoor side surface of the frame member 6 is opened, moisture inside the outer wall 25 can be quickly released to the outside. For this reason, even if condensation occurs inside the outer wall 25 due to a temperature difference between the inside of the outer wall 25 and the outdoor side, moisture due to condensation is quickly discharged to the outdoors, and the humidity inside the outer wall 25 is always kept low. Therefore, moisture can be prevented from entering the indoor side.

In addition, this invention is not limited to the said embodiment, The deformation | transformation in the range which can achieve the objective of this invention, improvement, etc. are included.
For example, as the dent part where the surface of the vertical shaft assembly is recessed, among the four side surfaces of the vertical shaft assembly, the step formed by denting the side surface to which the structural surface material is attached in a stepped shape As shown in FIG. 7, the side surfaces 4E facing each other of the pillars 4 that are a pair of vertical shaft assemblies disposed on both sides of the structural plywood 7 that is a structural surface material are recessed in a groove shape. The groove portion 4F into which the edge of the structural plywood 7 is inserted may be used.

It is a front view which shows the bearing wall which concerns on one Embodiment of this invention. It is an expanded sectional view which shows the principal part of the bearing wall which concerns on the said embodiment. It is sectional drawing which shows the inner wall which concerns on the said embodiment. It is sectional drawing in the floor surface vicinity which shows the inner wall which concerns on the said embodiment. It is sectional drawing which shows the outer wall which concerns on the said embodiment. It is sectional drawing of the floor surface vicinity which shows the outer wall which concerns on the said embodiment. It is a figure equivalent to FIG. 2 which shows the modification of this invention.

Explanation of symbols

1 Bearing wall 3 Foundation as horizontal shaft assembly
3A Top surface of the foundation that is a horizontal shaft assembly on the floor 4 Pillar as a vertical shaft assembly
4C Side face of vertical shaft assembly to which structural face material is attached
4D Stepped part as a recessed part
4E Side surfaces of multiple vertical shaft assemblies facing each other
4F Grooves as dents 5 Beams as horizontal shaft assembly 6 Frame material 7 Structural plywood as structural surface material
7A Surface of structural face
7B Edge of structural face material
7C Lower end surface of structural surface material 8 Nail 9 Floor surface material
9A Edge part of flooring
10 Clearance
20 Non-bearing wall
21 inner wall
22 Interior wall base material
25 Exterior wall
26 Exterior wall surface
27 Insulation

Claims (7)

A quadrangular frame member formed by a horizontal shaft member extending in the horizontal direction and a vertical shaft member extending in the vertical direction, and the frame so as to close the opening of the frame member in order to secure a resistance against a horizontal force. A load bearing wall with a structural face material attached to the material,
In order to prevent the surface of the structural shaft material from protruding outward from the side surface of the vertical shaft assembly material, a recess is provided in which the surface of the vertical shaft assembly material is recessed, and the structural surface material is provided in the recess. The structural face material is attached to the vertical shaft assembly with the edge portion of
Among the horizontal shaft members, a gap in which the floor member can be disposed is provided between the upper surface of the floor horizontal shaft member disposed on the floor side and the lower end surface of the structural member. Bearing wall characterized by.   A stepped portion in which the side surface of the vertical shaft assembly material is recessed in a stepped shape is provided as the recessed portion so that the surface of the structural face material and the side surface of the vertical shaft assembly material are substantially flush with each other. The load-bearing wall according to claim 1, wherein   The edge portion of the structural face material is attached to the stepped portion of the vertical shaft assembly by a plurality of nails struck at a predetermined pitch along the longitudinal direction of the stepped portion; and The load bearing wall according to claim 2, wherein the predetermined pitch is set in a range of 50 mm or more and less than 200 mm. Inner wall base material for forming inner wall surfaces on both sides of the frame material is pasted,
In addition, a non-bearing strength in which an inner wall base material for forming an inner wall surface is attached to both sides of a rectangular frame member formed by a horizontal shaft member extending in the horizontal direction and a vertical shaft member extending in the vertical direction. The bearing wall according to any one of claims 1 to 3, wherein the bearing wall is provided so as to be continuous with the wall and forms an inner wall that partitions the space in the building together with the non-bearing wall.   5. The yield strength according to claim 4, wherein both edge portions of the floor material forming the floor of the room provided on both sides of the frame material are placed on the upper surface of the floor-side horizontal shaft assembly. wall. An inner wall base surface material for forming an inner wall surface is attached to one surface of the frame member, and an outer wall finishing surface material for forming an outer wall surface is attached to the other surface of the frame member,
And, an inner wall base material for forming an inner wall surface is attached to one surface of a quadrangular frame member formed of a horizontal shaft member extending in the horizontal direction and a vertical shaft member extending in the vertical direction, The outer wall finishing surface material which forms an outer wall surface on the other surface of the frame member is provided so as to be continuous with the non-bearing wall, and the outer wall is formed together with the non-bearing wall. The bearing wall according to any one of claims 1 to 3. The structural face material that is substantially flush with the side surface of the vertical shaft assembly is disposed so that the surface of the structural face material faces the indoor side, and the back side surface that is opposite to the surface of the structural face material is The load bearing wall according to claim 6, wherein a heat insulating material is provided so as to face outward and to cover the back side surface.

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