JP7266385B2 - Partition wall structure and construction method for this partition wall structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a dry partition wall structure for partitioning the interior space of a building and its construction method, and more particularly to a partition wall structure excellent in sound insulation, fire resistance and workability and its construction method.

Concrete structures, which are wet structures such as RC and SRC structures, are excellent in sound insulation and fire resistance, but formwork work is essential, which requires a great deal of cost. For the purpose of shortening the construction period of buildings, reducing costs, etc., construction of dry partition walls is becoming more common. In housing complexes, hotels, and the like, dry-type fireproof and sound insulating partition walls are used to divide adjacent living spaces and have sound insulation and fire resistance performances.

As a dry partition wall structure, metal studs are attached at predetermined intervals to the upper and lower runners attached to the slab surfaces (ceiling surface, floor surface), which are the upper and lower bases, and wall panels are attached to both sides. structure is known. In Patent Document 1, a plurality of studs are arranged at predetermined intervals so that the centers of the studs are aligned on the same wall core, and a wall material is fixed to one side surface of every other stud via a heat insulating spacer, Next, a partition wall structure is described in which the wall materials are fixed to the opposite side surfaces of the other remaining other studs via heat insulating spacers, and the wall materials on both sides are independent without buffering each other. .

Patent Document 2 discloses a partition wall for fixing a partition wall having an independent double structure having a space to a building frame, wherein fixing means for the partition wall is provided for each independent wall surface of the partition wall. A partition wall structure is described which is divided and provided with a cushioning material between the fixing means and the body.

JP-A-63-247451 JP-A-10-205030

The structure of Patent Literature 1 improves fire resistance, sound insulation, and the like by attaching wall materials on both sides to studs via heat insulating spacers. However, the insulation spacers are very thin, and the wall materials on both sides are in a state of being substantially connected to each other through one stud, so vibration and heat can easily propagate, and sufficient sound insulation and Fire resistance cannot be obtained.

In the structure of Patent Document 2, as shown in FIG. 2 of the same document, ribs are formed integrally with the two panels inside each of the two panels. Vibrations and heat on the surface side of one panel are propagated directly to the integrated ribs and easily propagated to the ribs and panel of the other panel, making it difficult to obtain sufficient sound insulation performance and fire resistance.

SUMMARY OF THE INVENTION In view of the problems of the prior art, it is an object of the present invention to provide a partition wall structure capable of obtaining high sound insulation and fire resistance, and a construction method thereof.

The partition wall structure of the present invention is a partition wall structure that constitutes a partition of a building, and includes first and second upper runners attached to an upper body in parallel and spaced apart from each other, and runners attached to a lower body. First and second lower runners mounted in parallel spaced apart from each other so as to form a pair with the upper runner; a plurality of first and second studs supported in a lower part by each of two lower runners and provided in parallel along the partition direction; A first backing material for partitioning a space, and a second backing material fixed to the surface side of the second plurality of studs and partitioning an interior space of the building, wherein the first and second upper runners are horizontal strips. and a vertical piece to form an L-shaped cross section, and the upper portions of the first and second studs are supported by the vertical pieces of the first and second upper runners, respectively. An upper end of each of the first and second plurality of studs and the upper body are spaced apart, and a lower end of each of the first and second plurality of studs and the lower body are spaced apart. The upper parts of the first and second studs are engaged with the first and second upper runners via locking means that are vertically insertable and removable. and said locking means are formed at the vertical pieces of said first and second upper runners and at the upper ends of said first and second plurality of studs to overhang the studs. and a claw portion into which the vertical piece can be fitted .

According to the present invention, since the first and second upper runners and the first and second lower runners are separated from each other, the first runners supported by the first upper runners and the first lower runners are separated from each other. A plurality of studs and a second plurality of studs supported by a second upper runner and a second lower runner are spaced apart from each other. Therefore, the first backing material fixed to the surface side of the first plurality of studs and the second backing material fixed to the surface side of the second plurality of studs are completely independent of each other without a connecting portion. As a result, it is possible to effectively suppress vibration and heat transfer in adjacent living spaces.

A top end of each of the first and second pluralities of studs and the upper body are spaced apart, and a lower end of each of the first and second pluralities of studs and the lower body are spaced apart. and are spaced apart from each other. In this case, it is possible to further improve the effect of suppressing vibration and heat propagation in adjacent living spaces.

The upper portions of the first and second studs are supported by the first and second upper runners via locking means that are vertically insertable and removable.

In this case, it can be easily installed by just fitting the stud into the upper runner, and the workability is greatly improved. This can reduce costs. Since the studs are not completely fixed to the upper runner, the studs can easily follow the displacement when the floor is displaced, so that the earthquake resistance can be improved.

From the elastic bodies sandwiched between the first plurality of studs and the first backing material and between the second plurality of studs and the second backing material in a state of not being elastically deformed It is preferable to further include a cushioning material.

Vibration is absorbed by the cushioning material sandwiched between the stud and the base material, further reducing the propagation of vibration. When the stud and the base material are made of different materials, it is possible to prevent the occurrence of warpage due to the difference in expansion and contraction rate between them.

A plurality of mounting portions for mounting the first upper runner on the upper body and a plurality of mounting portions for mounting the second upper runner on the upper body may be staggered along the partition direction. . In this case, it is possible to enhance the effect of suppressing vibration and heat propagation in the adjacent living spaces, thereby enhancing workability.

A partition wall construction method of the present invention is a construction method for a partition wall structure constituting a partition of a building according to any one of the above constructions, wherein the first and second upper runners are attached to the upper body. , the first and second lower runners are attached to the lower body, and the vertical pieces of the first upper runners are fitted into the grooves of the claw portions of the upper portions of the first plurality of studs, thereby the upper portion of the studs of the first plurality supported by the vertical piece, the lower portions of the studs of the first plurality supported by the first lower runners, insulation provided inside the studs of the first plurality of studs, and the studs of the second plurality of The vertical pieces of the second upper runner are fitted into the grooves of the claw portions of the upper portions of the plurality of studs to support the upper portions of the studs, and the lower portions of the second plurality of studs are supported by the vertical pieces. The first base material is attached to the surface side of the first plurality of studs, and the second base material is attached to the surface side of the second plurality of studs, supported by a second lower runner. .

According to the construction method of the present invention, it is possible to effectively suppress the propagation of vibration and heat in adjacent living spaces.

The upper portions of the first and second studs are supported by the first and second upper runners via locking means that are vertically insertable and removable . In this case, it can be easily installed by just fitting the stud into the upper runner, and the workability is greatly improved. This can reduce costs. For example, the stud may be supported by fitting a claw provided on the top of the stud into a vertical piece of an L-shaped upper runner. In this way, the stud is not completely fixed to the upper runner, and the stud can easily follow the displacement when the interlayer is displaced, so that the earthquake resistance can be improved.

A cushioning material made of an elastic body in a non-elastically deformed state is attached to the first plurality of studs in advance or attached at the time of construction, and an elastic body in a non-elastically deformed state is attached to the second plurality of studs. The cushioning material consisting of a body is attached in advance or is attached at the time of construction, the first base material is attached to the surface side of the first plurality of studs while sandwiching the cushioning material, and the second plurality of studs are attached. It is preferable that the second base member is attached to the surface side of the stud while sandwiching the cushioning member.

Since the cushioning material is sandwiched between the stud and the base material without being elastically deformed, the vibration is absorbed and the propagation of the vibration can be further reduced. When the stud and the base material are made of different materials, it is possible to prevent the occurrence of warpage due to the difference in expansion and contraction rate between them.

According to the present invention, the first backing material and the second backing material are completely independent from each other with no connecting parts, and can effectively suppress vibration and heat propagation in adjacent living spaces, resulting in extremely high sound insulation. properties and fire resistance can be obtained.

1 is a perspective view showing a partition wall structure according to one embodiment of the present invention; FIG. It is a longitudinal cross-sectional view of a partition wall structure. It is a cross-sectional view of a partition wall structure. FIG. 4 is a perspective view showing an upper portion of the stud and a locking configuration between the stud and the upper runner; It is a cross-sectional view of the lower part of the partition wall structure. FIG. 3 is a perspective view showing a partition wall structure in which a base material is laid horizontally; FIG. 11 is a perspective view of an example using a fastening member for fastening a backing material to a stud; FIG. 10 is a perspective view showing a modification of the locking portion on the top of the stud and a locking form between the stud and the upper runner. It is a figure which shows the modification of an upper runner.

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a partition wall structure 1 according to one embodiment of the present invention, FIG. 2 is a longitudinal sectional view of the partition wall structure 1, and FIG. 3 is a horizontal sectional view of the partition wall structure 1. be.

The partition wall structure 1 of this embodiment constitutes a partition wall of a building. The first and second lower runners 4, 5 and the first and second upper runners 2, 3 are attached to the body 51 in a parallel state spaced apart from each other so as to form a pair with the upper runners 2, 3. First and second runners 4, 5 each having an upper part supported thereon and a lower part supported by each of the first and second lower runners 4, 5, and arranged in parallel along the partition direction. studs 6,7. One of the first base materials 8 that partition the interior space of the building is fixed to the surface side of the first plurality of studs 6, and the other second base material 9 that partitions the interior space of the building is fixed to the second plurality of studs. It is fixed to the surface side of 7.

The first and second upper runners 2, 3 and the first and second lower runners 4, 5 are both L-shaped steel materials long in the partition direction. The first and second upper runners 2 and 3 are fixed to the upper body 50 with bolts or rivets so that the horizontal piece s2 faces inward with respect to the vertical piece s1. The first and second lower runners 4 and 5 are fixed to the lower body 51 with bolts or rivets so that the horizontal piece c2 faces outward with respect to the vertical piece c1.

The first and second base members 8 and 9 of this embodiment are plate members formed in a rectangular shape when viewed from the front as shown in the drawing. The shape and dimensions of each of the base materials 8 and 9 are not limited, but are set according to the size of the construction site. The material forming each base material 8, 9 is not limited as long as it is noncombustible and can be used as a partition of a building. , medium density fiberboard, particleboard, wood plywood, hard fiberboard, steel plate and the like.

An inorganic fiber reinforced cement board or a gypsum board can be used as the base materials 8 and 9 . When an inorganic material is selected, a specific gravity of about 0.5 to 1.8 g/cm ³ is suitable. Considering the floor height of a general housing complex, the maximum length of each base material 8, 9 is about 3000 mm. When a long piece is erected with a specific gravity of 1.3 g/cm ³ or more, it can be prevented from bending during construction. Also, by using a material with a specific gravity of 1.8 g/cm ³ or less, it is possible to prevent the weight from becoming too large.

Sealing materials 10 are provided above and below the first and second base materials 8 and 9 as shown in FIG. First and second finishing materials 11 and 12 such as gypsum boards are attached to the surfaces of the first and second base materials 8 and 9 with screws and staples, respectively. wallpaper is pasted. A sound absorbing/heat insulating material 13 such as glass wool or rock wool is attached so as to be sandwiched between the first and second studs 6 and 7 .

The plurality of first and second studs 6 and 7 are erected at regular intervals along the partition direction. Each of the studs 6 and 7 of the present embodiment is made of a thin steel plate made of iron, stainless steel, aluminum, or the like so as to have a rectangular cross section. The studs 6 and 7 are not limited to being made of metal as long as they are incombustible, and any material may be used as long as it can exhibit the effect of reinforcing the base materials 8 and 9 and can stand on its own when used as a partition wall. Each stud 6,7 may be made of the same material as each substrate 8,9.

FIG. 4 is a perspective view showing the upper part of each stud 6, 7 and the engagement form between each stud 6, 7 and each upper runner 2, 3. FIG. Upper parts of the first and second studs 6 and 7 are fitted into the first and second upper runners 2 and 3 respectively via locking means 14 which can be inserted and removed in the vertical direction. Locked. A claw portion 15 is formed by processing a part of the upper portion of each stud 6, 7, and this claw portion 15 and the vertical piece s1 of each upper runner 2, 3 constitute locking means 14. there is As shown in the figure, the studs 6 and 7 are supported by the upper runners 2 and 3 by fitting the vertical pieces s1 of the upper runners 2 and 3 into the grooves of the pawl portions 15 of the studs 6 and 7. there is

FIG. 5 is a sectional view of the lower part of the partition wall structure 1. FIG. A plurality of studs 6 are screwed to the vertical piece c1 of the first lower runner 4 from the side. A plurality of studs 7 are screwed from the outside to the vertical piece c1 of the second lower runner 5 through the studs. Such a screw fastening form is associated with the mounting process of the first and second lower runners 4 and 5, and can be changed as appropriate. The direction of the first and second lower runners 4, 5 may be changed according to the conditions of the construction site, and the studs 6, 7 on both sides may be fastened from the outside.

As shown in FIGS. 4 and 5, there is a spacing 16 between the upper end of each of the first and second studs 6,7 and the horizontal piece s2 of the first and second upper runners 2,3. is vacant. A space 16 is provided between the lower end of each of the first and second studs 6,7 and the horizontal piece c2 of the first and second lower runners 4,5. As a result, the upper ends of the first and second studs 6 and 7 and the upper body 50 are kept at a distance 16, and the first and second studs 6 and 7 are separated from each other. and the lower body 51 are spaced 16 from each other so that sufficient space is maintained between the studs 6 and 7 and the upper and lower bodies 50 and 51 . As a result, vibration propagating from the first and second base members 8 and 9 via the studs 6 and 7 can be effectively prevented.

As shown in FIGS. 1 and 4, there is elastic deformation between the first plurality of studs 6 and the first backing member 8 and between the second plurality of studs 7 and the second backing member 9. Cushioning materials 17 made of an elastic body are sandwiched in a vertical direction with a space therebetween.

The cushioning material 17 sandwiched between the studs 6 and 7 and the backing materials 8 and 9 is in the form of a sheet cut to a required size. The dimensions and thickness of the cushioning material 17 can be changed as appropriate. The cushioning material 17 is made of an elastic material, and is sandwiched without being elastically deformed. As a result, vibration generated between the studs 6, 7 and the base members 8, 9 can be absorbed.

By absorbing the vibrations between the studs 6 and 7 and the base members 8 and 9, the propagation of the vibrations is suppressed and the sound insulation effect can be significantly improved. Further, by relaxing the force applied between the studs 6, 7 and the base materials 8, 9, the difference in expansion ratio between the two members is allowed, and the warpage of the base materials 8, 9 is suppressed. can be done.

It is important to attach the cushioning material 17 so as not to compress it. The thickness of the cushioning material 17 is the distance between the studs 6 and 7 and the base materials 8 and 9 so that the cushioning material 17 is not elastically deformed. Therefore, the studs 6 and 7 and the base members 8 and 9 are attached with a space corresponding to the thickness of the cushioning material 17 . As a method of attaching the cushioning material 17 while sandwiching it, screw fastening is used in this embodiment.

In addition to screwing, any form such as a pin or rivet may be used as long as the distance between the studs 6 and 7 and the base members 8 and 9 can be maintained. When attaching the studs 6 and 7 to the backing materials 8 and 9, a packing material such as slate or PVC having the same thickness as the cushioning material 17 is preliminarily attached to the studs 6 and 7 so that the cushioning material 17 is not compressed. It may be sandwiched between the base materials 8 and 9 and removed after the installation is completed.

When an adhesive is used, the adhesive is applied to the front and back of the cushioning material 17, and the base materials 8, 9 and the cushioning material 17, and the cushioning material 17 and the studs 6, 7 are adhered and fixed to each other. If an adhesive is used, a force that pushes the cushioning material 17 does not act, so that the cushioning material 17 can be securely attached without being compressed.

Examples of materials forming the cushioning material 17 include natural rubber, synthetic rubber, styrene-butadiene rubber, butadiene rubber, chloroprene rubber, butyl rubber, nitrile rubber, ethylene propylene rubber, chlorosulfonated polyethylene rubber, acrylic rubber, urethane rubber, and silicone rubber. , fluororubber, polysulfide rubber, foams thereof, and the like.

The hardness of the cushioning material 17 is preferably 20 to 80, more preferably 30 to 60 in type A durometer. By setting the hardness of the cushioning material 17 to 20 or more, the cushioning material 17 is less likely to be compressed during screwing, and high sound insulation can be obtained. By setting the hardness of the cushioning material 17 to 80 or less, the vibration of the sound transmitted to the cushioning material 17 does not become too large, and high sound insulation can be maintained.

The partition wall structure 1 is constructed, for example, as follows. The first and second upper runners 2 and 3 are attached to the upper body 50 and the first lower runner 4 is attached to the lower body 51 . The studs 6 are locked by fitting the vertical pieces s1 of the first upper runners 2 into the claw portions 15 on the upper portions of the first plurality of studs 6 . The lower portions of the first plurality of studs 6 are fixed to the first lower runner 4 by screwing. At that time, cushioning materials 17 are attached to the first plurality of studs 6 in advance or are attached during construction.

A sound absorbing and heat insulating material 13 is attached inside the first plurality of studs 6 , and a second lower runner 5 is attached to the lower body 51 . The studs 7 are locked by fitting the vertical pieces s1 of the second upper runners 3 into the claw portions 15 on the upper portions of the second plurality of studs 7 . The lower parts of the second plurality of studs 7 are fixed to the second lower runner 5 with screws. At that time, the cushioning material 17 is attached to the second plurality of studs 7 in advance or is attached at the time of construction. Use adhesive or double-sided tape to attach the cushioning material to the stud.

A first backing material 8 is attached to the surface side of the first plurality of studs 6 so as not to deform the cushioning material 17 . A second backing material 9 is attached to the surface side of the second plurality of studs 7 so as not to deform the cushioning material 17 . A sealing material 10 is filled in the gaps above and below the first and second base materials 8 and 9 . Thereafter, gypsum boards 11 and 12, which are the first and second finishing materials, are attached to the surfaces of the first and second base materials 8 and 9, and then wallpaper is pasted for finishing. These construction procedures are shown as an example, and can be arbitrarily set according to the form of the partition wall structure 1 .

According to the partition wall structure 1 of the present embodiment and its construction method, since the first and second upper runners 2, 3 and the first and second lower runners 4, 5 are separated from each other, A first plurality of studs 6 supported by the first upper runner 2 and the first lower runner 4 and a second plurality of studs 7 supported by the second upper runner 3 and the second lower runner 5. and are separated from each other. Therefore, the first base material 8 attached to the surface side of the first plurality of studs 6 and the second base material 9 attached to the surface side of the second plurality of studs 7 have no connecting portions. become completely independent. As a result, it is possible to effectively suppress vibration and heat propagation in adjacent living spaces.

Since the upper portions of the first and second studs 6 and 7 are supported by the first and second upper runners 2 and 3 via locking means 14 which are vertically insertable and removable, Only by fitting the studs 6 and 7 into the upper runners 2 and 3, they can be easily installed, and workability is remarkably improved. This can reduce costs. The studs 6 and 7 are supported only by fitting the claw portions 15 on the upper portions of the studs 6 and 7 into the vertical pieces s1 of the upper runners 2 and 3, respectively. Therefore, the studs 6 and 7 are not completely fixed to the upper runners 2 and 3, and the studs 6 and 7 easily follow the displacement when the layers are displaced, thereby improving the earthquake resistance.

A space 16 is provided between the upper ends of each of the first and second plurality of studs 6,7 and the upper body 50, and each of the first and second plurality of studs 6,7 The space 16 between the lower end and the lower body 51 can further improve the effect of suppressing vibration and heat propagation in adjacent living spaces.

From the elastic bodies sandwiched between the first plurality of studs 6 and the first backing member 8 and between the second plurality of studs 7 and the second backing member 9 in a state where they are not elastically deformed Since the buffer material 17 is provided, the vibration is absorbed by the buffer material 17, and the propagation of the vibration can be further reduced. When the studs 6 and 7 and the base members 8 and 9 are made of different materials, it is possible to prevent warping due to the difference in expansion and contraction rates between them.

The present invention is not limited to the above embodiments, and the shape, size, mounting method, etc. of the studs, base material, upper and lower runners, etc. can be appropriately changed according to the specifications for partitioning the interior space of the building. In the above embodiment, the base materials 8 and 9 are arranged vertically as shown in FIG. 1, but the base material 21 may be arranged horizontally as shown in FIG. When the backing material 21 is laid horizontally, a fastening member 22 shown in FIG. 7 for fastening the backing material 21 to the studs 6 and 7 may be used. The fastening member 22 comprises an S-shaped main body 22a having a threaded portion and two fitting claws 22b facing in opposite directions from the S-shaped main body 22a. The base material 21 can be easily fastened to the studs 6 and 7 by fitting the adjacent ends of the base material 21 into the fitting claws 22b.

The locking means for locking the studs to the upper runners so as to be vertically insertable and detachable should be easy to construct and capable of reliable locking. FIG. 8 is a perspective view showing a modification of the engaging portion of the upper part of each stud 25 and the form of engagement between each stud 25 and each upper runner 2, 3. As shown in FIG. In this example, a notch 25a is formed at the edge of each stud 25, and the vertical piece s1 of each upper runner 2, 3 is inserted into this notch 25a. Even when this locking means 26 is used, each stud 25 can be easily attached, and workability can be significantly improved. Furthermore, each stud 25 can be made to follow the displacement of the upper runners 2 and 3, and earthquake resistance can be improved.

FIG. 9 is a diagram showing a modification of the first and second upper runners 27,28. Each of the upper runners 27, 28 is composed of a runner body e1 elongated in the partition direction and a plurality of projections e2 formed at regular intervals on the runner body e1. A screw hole is formed through each protrusion e2. The first upper runner 27 and the second upper runner 28 are screwed and fixed to the upper body 50 of FIG. 1 with the plurality of protrusions e2 facing each other.

The plurality of projections e2 (mounting portions) for attaching the first upper runners 27 and the plurality of projections e2 (mounting portions) for attaching the second upper runners 28 are arranged in a zigzag pattern along the partition direction. , the two members 27 and 28 are arranged. The shape, location, and number of the protrusions e2 can be changed. In this case, it is possible to enhance the effect of suppressing the propagation of vibration and heat in the adjacent living spaces, and further enhance the workability.

In the above embodiment, the stud has a rectangular cross-section, but any cross-sectional shape such as U-shaped, L-shaped, C-shaped, circular, triangular, or polygonal can be used as long as the cushioning material can be attached. good. If a stud with a U-shaped or C-shaped cross section is used, the studs are mounted so that the openings of the two studs face each other. Insulation can be installed between the two studs. The studs may be made longer and oriented at an angle to the substrate. If the studs are attached obliquely, the number of attachments is reduced and workability is improved.

The partition wall structure and construction method thereof according to the present invention can be modified within the technical scope described in the claims. The partition wall structure, the construction method thereof, other members provided as necessary, and other processes may be of any form as long as they do not impair the effects of the present invention.

1 partition wall structure 2 first upper runner 3 second upper runner s1 vertical piece s2 horizontal piece 4 first lower runner 5 second lower runner c1 vertical piece c2 horizontal piece 6 first plurality of studs 7 second second 8 first backing material 9 second backing material 10 sealing material 11 first finishing material 12 second finishing material 13 sound absorbing/insulating material 14, 26 locking means 15 claw portion 16 spacing 17 cushioning material 21 base Material 22 Fastening member 22a S-shaped main body 22b Fitting claw 25 Stud 25a Notch 27 First upper runner 28 Second upper runner e1 Runner body e2 Convex part

Claims (5)

A partition wall structure constituting a partition of a building,
first and second upper runners attached to the upper body in parallel and spaced apart from each other;
first and second lower runners attached to the lower body in a parallel state spaced apart from each other so as to form a pair with the upper runner;
The first and second runners are arranged in parallel along the partition direction, the upper part of which is supported by each of the first and second upper runners and the lower part of which is supported by each of the first and second lower runners. 2 plurality of studs;
a first base material fixed to the surface side of the first plurality of studs and partitioning an interior space of the building;
a second base material that is fixed to the surface side of the second plurality of studs and partitions the interior space of the building;
The first and second upper runners are configured with a horizontal piece and a vertical piece to form an L-shaped cross section, and the upper portions of the first and second plurality of studs are aligned with the first and second upper portions. supported on each vertical piece of the runner,
A top end of each of the first and second plurality of studs and the upper body are spaced apart, and a bottom end of each of the first and second plurality of studs and the lower body are spaced apart. and are spaced apart ,
the upper portions of the first and second studs are supported by the first and second upper runners via locking means that are vertically insertable and removable;
The locking means are
vertical strips of the first and second upper runners;
a partition wall structure comprising: claw portions formed at the upper ends of the plurality of first and second studs so as to protrude outside the studs and into which the vertical pieces can be fitted. An elastic body sandwiched between the first plurality of studs and the first backing material and between the second plurality of studs and the second backing material in a non-elastically deformed state. The partition wall structure according to claim 1, further comprising a cushioning material comprising: A plurality of mounting portions for mounting the first upper runner on the upper body and a plurality of mounting portions for mounting the second upper runner on the upper body are staggered along the partition direction. The partition wall structure according to claim 1 or 2 . The method for constructing a partition wall structure according to any one of claims 1 to 3, which constitutes a partition of a building,
attaching the first and second upper runners to the upper body;
attaching the first and second lower runners to the lower body;
The vertical pieces of the first upper runner are fitted into the grooves of the claw portions on the upper portions of the first plurality of studs to support the upper portions of the studs with the vertical pieces;
supporting the lower portions of the first plurality of studs with the first lower runner;
providing insulation inside the first plurality of studs;
The vertical pieces of the second upper runner are fitted into the grooves of the claw portions of the upper portions of the second plurality of studs to support the upper portions of the studs with the vertical pieces;
supporting the lower portions of the second plurality of studs with the second lower runner;
A method for constructing a partition wall structure, wherein the first base material is attached to the surface side of the first plurality of studs, and the second base material is attached to the surface side of the second plurality of studs. A cushioning material made of an elastic body that is not elastically deformed is attached to the first plurality of studs in advance or is attached at the time of construction,
The cushioning material made of an elastic body that is not elastically deformed is attached to the second plurality of studs in advance or is attached during construction,
The first base material is attached to the surface side of the first plurality of studs while sandwiching the cushioning material, and the second base material is attached to the surface side of the second plurality of studs while sandwiching the cushioning material. 5. The method for constructing a partition wall structure according to claim 4, wherein a base material is attached.

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