JP2003105904A - Fire-resistant, sound insulating partition wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire-resistant, sound insulating partition wall being easy to construct, eliminating the need for any special hardware, and satisfying high sound insulation performance and fire resistance performance at the same time. SOLUTION: A plurality of panels 30 are arranged in parallel in a straight line to form an inner wall A and furring strips 40 are applied to each side of each panel 30. The inner part of each furring strip 40 is irregular in its longitudinal direction and either the front or back of each panel 30 is caused to abut the projecting part 40a of each furring strip 40. Further, a plurality of fire-resisting boards 80 are arranged in parallel and secured to the outer surfaces of the furring strips 40 along the longitudinal direction of the wall.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a partition wall of a building, such as a partition wall used in an apartment house, an office, or a high-rise building, having high sound insulation and excellent fire resistance. It relates to a fireproof and soundproof partition wall.

[0002]

2. Description of the Related Art A partition wall disclosed in JP-A-7-26643 and JP-A-8-93094 is known as a conventional partition wall for the purpose of fire resistance and sound insulation (first technique). ).

In each of the partition walls, lightweight cellular concrete panels, that is, ALC panels are arranged in a staggered manner in the direction of the wall, and the recessed portions of the wall thus formed are filled with a sound insulating material.
It is a partition wall with a structure in which surface materials such as fireproof boards are attached to both surfaces of the ALC panel and the sound insulation material.

Further, as a partition wall of the conventional construction method, FIG.
As shown in FIG.
A mortar 12 is applied to both outer surfaces of the LC panel 11, and a partition wall 10 on which a fireproof board 13 such as a gypsum board is further attached to the outer side thereof, or an ALC panel arranged in a straight line as shown in FIG. Nails 1 on both outer surfaces of 11
A partition wall 10a is known in which the partition wall 10a is mounted by attaching the fireproof board 13 such as a gypsum board and the fireproof board 13 such as a gypsum board to the outer side thereof by a screw 16 (second technique).

Further, Japanese Utility Model Laid-Open No. 63-129090 discloses the following partition wall structure. A pair of upper and lower runners are installed in parallel on the ceiling slab and the floor, separated by a desired distance, and between the upper and lower runners, along with the longitudinal direction of the runners, reinforcing material-containing panels are arranged in two rows at desired intervals. The separations are staggered as a whole, and non-combustible fibers are attached between the panels in each row. Further, two layers of fireproof boards made of different materials are attached to the outer surfaces of the panels in each row and the non-combustible fibers connected to the panels, and an air layer is formed between the panels and the inner surfaces of the non-combustible fibers connected to the panels. A partition wall having the above configuration is disclosed (third technique).

[0006]

Among the above-mentioned three kinds of techniques, the first technique is a structure in which an ALC panel and a sound insulating material are combined, so that although the sound insulating performance is provided, AL
Since the C panels have to be arranged in a staggered manner, it takes a lot of work for marking out and positioning for mounting, and special mounting hardware for that is also required. In addition, there is a problem in that the installation position of the electrical wiring and the outlet after construction is limited in terms of wiring and piping due to its structure. Further, since the ALC panels are arranged in a staggered manner in the length direction of the wall body, there is a problem that the partition wall becomes thick.

Next, the second technique shown in FIG. 11 and FIG. 12 has a structure in which the refractory board 13 is simply combined with the outer side of the ALC panel 11, so that the construction can be easily performed. However, in the structure, the ALC panel 1 on the inner side
1 and the mortar 12 of the middle layer, the wooden furring strip 14 and the refractory board 13 on the outer surface side are fixed in contact with each other. for that reason,
Solid propagation sound from the wall surface side of the outer surface is often propagated directly to the back surface side through the mortar 12, the wooden furrow 14 on the inner side, and the ALC panel 11. That is, there is a problem that the sound insulation performance is deteriorated.

Further, in the third technique, in order to improve fire resistance, sound insulation, and physical strength, the panels and the non-combustible fibers are arranged in a staggered pattern, and an air layer is provided between the inner surfaces thereof.
In addition, a fireproof board is attached to the outer surface of the panel and non-combustible fiber. In this method, the panel and the non-combustible fiber must be arranged in parallel and at intervals, which may limit the mounting position of the upper and lower runner positions. In addition, the staggered arrangement requires accuracy in positioning and mounting. In addition, it is necessary to install them one by one, and it is necessary to install incombustible fibers, which are difficult to stand on, to the panel, which is very troublesome. Further, as in the case of the first technique, the panel and the non-combustible fibers are arranged in a zigzag pattern, and the air layer is provided therein, so that there is a problem that the partition wall becomes thick.

Therefore, an object of the present invention is to provide a fireproof and soundproof partition wall which is excellent in soundproofing performance and fireproof performance and which does not require a great deal of labor and a special mounting hardware in construction.

[0010]

DISCLOSURE OF THE INVENTION A fireproof and soundproof partition wall of the present invention comprises a plurality of panels arranged in a straight line to form an inner wall, and both sides of the inner wall are horizontally long to form a plurality of panels. Straddling furring strips are arranged in a plurality of vertical directions, and a plurality of boards are juxtaposed on the furring strips on both sides of the inner wall to form an outer wall, and an air layer is formed between the outer wall and the inner wall. The fireproof and soundproof partition wall, wherein the inner wall of each furring strip has a protrusion for attachment fixed to a panel of the inner wall and a recess for gap formation for forming a gap between the panel. Are alternately formed, and the convex portion of the furring strip fixed to one side surface of the panel and the concave portion of the furring strip on the other side surface face each other.

Further, the fireproof and soundproof partition wall of the present invention is a fireproof and soundproof partition wall in which a joint material is filled between the panels.

Further, in the fireproof and soundproof partition wall of the present invention, the panel is any one of a lightweight cellular concrete panel, a calcium silicate molded board, a gypsum board, a wood wool cement board, a pulp cement board, a slate board and an extruded board. It is a certain fireproof sound insulation partition wall.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a fireproof and soundproof partition wall of the present invention will be described with reference to the drawings. (First Embodiment) FIGS. 1 to 4 show a first embodiment. In FIG. 3, 110 is a ceiling and 120 is a floor, and the fireproof and soundproof partition wall 20 is provided between the ceiling 110 and the floor 120. The fireproof and soundproof partition wall 20 includes a lightweight cellular concrete panel 30 (hereinafter referred to as ALC panel 30), a furring strip 40, a fireproof board 80 such as a gypsum board, and a joint material 60.

At the time of installation, an inverted U-shaped runner 90 made of metal such as iron is attached to the lower surface of the ceiling 110 at a desired position by an anchor 100, and a plurality of ALCs are provided between the vertical pieces 90a of the runner 90. As shown in FIGS. 1 and 2, a plurality of ALC panels 30 are aligned in a straight line by sequentially fitting the upper portions of the panels 30 and vertically installing the inner walls A. To do.

The thickness of each ALC panel 30 constituting the inner wall A is about 80 mm to 120 mm, and the elastic urethane joint material 60 having a thickness of about 5 mm to 30 mm is ALC between the ALC panels 30. It is filled over the entire length of the panel 30 in the up-down direction, and the joint material 60 reduces the solid propagation of sound and vibration between the adjacent ALC panels 30, and the adjacent ALC panels 3
Since the gap between 0s is closed, spatial propagation of sound from one surface side of the ALC panel 30 to the other surface side is eliminated.

On both sides of the inner wall A, a furring strip 40 extending horizontally in a plurality of ALC panels 30 is provided.
Are attached in three stages in the vertical direction. Each furring 40
4 is made of wood, and as shown in FIG. 4, a protrusion 40a for mounting, which is fixed to the ALC panel 30 of the inner wall A, and a gap for forming a gap to the ALC panel 30 are formed on the inner side thereof. The recesses 40b are alternately formed, and the length a of the protrusion 40a is shorter than the width of the ALC panel 30, and the length b of the recess 40b is longer than the width of the ALC panel 30.
The sum of the length a of the convex portion 40a and the length b of the concave portion 40b is AL
It is twice the width of the C panel 30.

When mounting the furring strip 40, the projection 40a of the furring strip 40 does not come into contact with the adjacent ALC panel 30 and does not come into contact with each other.
While making contact with only the LC panel 30, each recess 40b completely separates one ALC panel 30 from the furring strip 40, and further, with respect to one side surface of the same one ALC panel 30. As a result, the convex portions 40a of the upper and lower three-stage furring strips 40 are brought into contact with each other, and the concave portions 40b of the upper and lower three-tier furring strips 40 are opposed to the opposite side surfaces of the same one ALC panel 30. Therefore, the convex portion 40a of the furring strip 40 on one side and the concave portion 40b of the furring strip 40 on the other side are always opposed to each other with the ALC panel 30 interposed therebetween. Also,
In the present embodiment, the furring strip 40 is provided in three upper and lower stages.
It can be changed according to the length of the C panel. Furry 40
It is better to set the vertical interval of 450mm to 1200mm,
This is preferable because the fireproof board 80 can be easily attached and the fireproof board 80 can be stably attached.

In this embodiment, the AL of each furring strip 40 is
The attachment to the C panel 30 is performed by adhering the convex portion 40a to the ALC panel 30 with an adhesive,
When the fireproof board 80 is attached to the furring strip 40 later, the furring strip 40 is firmly fixed to the ALC panel 30 together with the fireproof board 80 by the screws 70 for attaching the fireproof board 80.

A plurality of fireproof boards 80 are provided on the outer surfaces of the furring strips 40 on both sides of the inner wall A, respectively, and a plurality of screws 7 are provided.
The outer wall B is formed on both sides of the inner wall A by mounting the inner wall A in parallel with the inner wall A at 0. An air layer 50 having the same thickness as the width d of the furring strip is formed between the outer wall B and the inner wall A by the furring strip 40, thereby ensuring fire resistance and sound insulation. In this case, as the thickness of the air layer 50 is larger, the fire resistance and the sound insulating property are improved. However, when the air layer 50 is thicker, the thickness of the fire resistant and sound insulating partition wall 20 becomes thicker. It is preferably within 50 mm.

According to the present invention, with such a configuration, the convex portion 40a of the furring strip 40 on one side and the concave portion 40b of the furring strip 40 on the other side are always opposed to each other with the ALC panel 30 constituting the inner wall A sandwiched therebetween. Therefore, the fireproof board 8 that constitutes the outer wall B on one side
Since the sound and vibration from 0 are always isolated by the recess 40b, they do not directly propagate through the ALC panel 30 to the fireproof board 80 that constitutes the outer wall B on the opposite side, and the sound insulation is provided. It does not lower.

(Second Embodiment) FIG. 5 shows a fireproof and soundproof partition wall 20a according to a second embodiment. In the description of the second embodiment, the same parts as those in the first embodiment will be designated by the same reference numerals. In the above-described first embodiment, as shown in FIG.
The convex portions 40a of the upper and lower furrows 40 are brought into contact with one side surface of the panel 30, and the concave portions of the upper and lower furrows 40 with respect to the opposite side surface of the same one ALC panel 30. 40b are opposed to each other, but the same one A as in the fireproof and soundproof partition wall 20a of the second embodiment shown in FIG.
On one surface of the LC panel 30, the convex portion 4 of the furring strip 40 is formed.
0a and recesses 40b may be arranged alternately in the vertical direction.

In the case of this second embodiment, all ALCs
Since the convex portion 40a of the furring strip 40 abuts on the panel 30 from both sides, the rigidity of the fireproof and sound insulating partition wall 20a becomes more uniform over the first embodiment, and there is no particularly weak portion. On the other hand, on the other hand, the sound and vibration from the fireproof board 80 forming the outer wall B on one side are transmitted to the ALC panel 30 via the convex portion 40a of the furring strip 40, and then inside the ALC panel 30. By propagating up and down, it is transmitted to the fire-resistant board 80 that constitutes the outer wall B on the opposite side, and therefore, in terms of sound insulation, it becomes slightly inferior to the fire-resistant sound insulation partition wall 20 of the first embodiment.

(Third and Fourth Embodiments) FIG. 6 shows a third embodiment.
The fireproof and soundproof partition wall 21 of the fourth embodiment is shown, and FIG. 7 shows the fireproof and soundproof partition wall 22 of the fourth embodiment. In the first embodiment shown in FIGS. 1 to 4 and the second embodiment shown in FIG. 5, the convex portion 40a of the furring strip 40 is
Although it is arranged to contact the LC panel 30 every other sheet in the lateral direction, as in the third embodiment shown in FIG.
The concave portions 41b of the furring strip 41 may be made to contact the ALC panel 30 every two sheets, and the concave portions of the furring strip 42 may be changed as in the fourth embodiment of FIG. Four
2b may be further lengthened so that the convex portions 42a of the furring strip 42 contact the ALC panel 30 every three sheets.

In this way, the convex portions 41 of the furring strips 41, 42 are
By increasing the distance between a and 42a, the outer wall B to the inner wall A
Further, the sound and vibration transmitted from the inner wall A to the outer wall B on the opposite side can be further reduced. Further, in the first embodiment shown in FIGS. 1 to 4, the furring strip 40 and the fireproof board 80 are fixed to the ALC panel 30 with the same screw 70. However, in the third embodiment and the fourth embodiment, The furring strips 41 and 42 are attached to the ALC panel 30 with screws or nails not shown, and then the fireproof board 80 is mounted to the furring strips 41 and 42 with another screw 81.

(Fifth Embodiment) FIG. 8 shows a fireproof and sound insulating partition wall of a fifth embodiment. In this fifth embodiment,
As is apparent from comparison with FIG. 3, in the first embodiment of FIG. 3, the inverted U-shaped runner 90 is used for the ceiling 110, while the pair of L-shaped angles 91 are used as runners. Further, a pair of L-shaped angles 91 are provided as runners on the floor 120 side, and the upper and lower parts of the plurality of ALC panels 30 are fitted between the pair of L-shaped angles 91 to form the inner wall A. . Reference numeral 71 is a screw for fixing the fireproof board 80 to the furring strip 40, 72 is a screw for fixing the furring strip 40 to the ALC panel 30, 100 is an anchor for fixing the L-shaped angle 91 to the ceiling 110 or the floor 120, and 101 is L. ALC panel 30 on mold angle 91
It is a screw that fixes.

(Sixth Embodiment) FIG. 9 shows a furring strip of a fireproof and soundproof partition wall of the present invention. In FIG. 9, 43 is a long rectangular bar, 44 is a rectangular parallelepiped, and 45 is a plate-shaped member to form a furring strip. The furring strip may be composed of the rectangular rod 43 and the rectangular parallelepiped 44, or may be integrally molded to have irregularities. In this case, the length of the rectangular parallelepiped 44 is shorter than the width of the ALC panel 30. Then, when attaching the rectangular parallelepiped 44 to the rectangular rod 43, a screw 82, a nail or the like may be used, or an adhesive may be used. Further, screws, nails, or adhesives may be used to attach the plate member 45 to the rectangular parallelepiped 44.

The material of the rectangular rod 43 and the rectangular parallelepiped 44 may be made of metal or plastic, but is preferably made of wood in view of workability and economy. In addition, the plate-shaped material 4
The material of 5 may be the same metal or plastic material as described above, but since it directly contacts the ALC panel 30, if a material having a larger elasticity, that is, a resin material such as rubber or elastic urethane is used. It is preferable because the sound and vibration transmitted to the outer wall B can be further reduced.
In the case of the furring edge composed of the square rod 43 and the rectangular parallelepiped 44,
As the material of the rectangular parallelepiped 44, it is preferable to use a material having a larger elasticity than the above, because the sound insulation is improved as in the above.
When the plate member 45 is used, its length does not have to be the same as the length of the rectangular parallelepiped 44, and its thickness is 5 mm or more.
About 10 mm is preferable. Further, the internal structure thereof may be solid or hollow.

Although the above-mentioned furring strip has the rectangular parallelepiped 44 attached to one surface of the square rod 43 so that only one surface has an uneven shape, the rectangular parallelepiped 44 also forms an uneven portion on the other surface.
It may be a structure in which is attached. In this case, an air layer is formed on both side surfaces of the furring strip, which further secures fire resistance and sound insulation, which is preferable.

The joint material 60 may be filled between the ALC panels 30 by dispersing it little by little over the entire length of the ALC panel 30, but it is more preferable to fill the joint material 60 throughout the entire length because the sound insulation performance is improved. As the material of the joint material 60, glass wool, rock wool, ceramic fiber, rubber, urethane foam, elastic urethane, or the like is adopted. Furthermore, it is more preferable to use various resin-based materials such as an inorganic fire-resistant joint adhesive and a vibration-proof material because the sound insulation performance and the fire resistance are improved.

Further, the ALC panel 30 and the fireproof board 80
Air layer 50 and furring strips 40, 41, 42 formed between
When the inorganic fiber material such as glass wool or rock wool is loaded in the concave portions 40b, 41b, 42b of
It is preferable because not only sound insulation but also fire resistance and heat insulation are improved at the same time.

In forming the inner wall A, in addition to the ALC panel 30 as the panel, a lightweight cellular concrete sound absorbing material (trade name: Shizukalite, manufactured by Kurion Co., Ltd.), calcium silicate board, extruded board, lightweight concrete. Board,
Gypsum board, PC board, hollow PC board, etc. can be adopted. Among them, the use of the ALC panel 30 is more preferable in terms of fire resistance, heat insulation, easy workability, and fastening of screws and nails.

[0032]

EXAMPLE In order to evaluate the sound insulation performance of the embodiment according to the present invention, the fireproof sound insulation partition wall 20 described in the first embodiment was manufactured and the sound transmission loss (dB) was measured. The inverted U-shaped runner 90 is 101 mm (width) ×
A 3050 mm (length) × 2.3 mm (thickness) made of gold was used. The panel is 600 mm (width) x 100 mm
An ALC panel 30 of (thickness) × 3000 mm (length) was used. A gap of 10 mm was provided between the ALC panels 30, and the joint material 60 made of elastic urethane was filled in the gap over the entire length in the length direction.

Next, the total length is 3000 mm, and the convex portion 4
0a thickness (c) is 20mm, length (a) is 400m
m, the length (b) of the recess 50 is 800 mm, and the width (d) is 4
Solid wooden furring 40 with 0 mm and thickness (e) of 30 mm
Was attached to both outer surfaces of the ALC panel 30 in such a manner that the ALC panel 30 has three steps in the vertical direction with an interval of 700 mm. At this time, the position of the convex portion 40a is one A
The LC panel 30 was attached so as to contact only one side surface. And the attachment of the furring strip 40 to the ALC panel 30 is
A small amount of an organic adhesive was applied to each convex portion 40a and attached to the ALC panel 30 as a temporary attachment.

Next, a thickness of 2 is formed on both outer surfaces of the furring strip 40.
A 0 mm gypsum board 80 was attached. At the time of mounting, the ALC panel 30 is placed at the position of the convex portion 40a of the furring strip 40.
Attach it with a metal screw 70 so that it can be inserted up to
The fireproof and soundproof partition wall 20 was completed. After that, in order to evaluate the sound insulation performance of the fireproof sound insulation partition wall 20, the center frequency 1
The sound transmission loss (dB) from 25 Hz to 4 kHz was measured. The result is shown in FIG. (Note: The transmission loss is a value in dB (decibel) that indicates how much the sound pressure level of the sound that is transmitted decreases with respect to the sound pressure level of the sound that is incident on one surface of one sound insulation layer.)

[0035]

COMPARATIVE EXAMPLE A conventional partition wall 1 as shown in FIG. 12 was used, using an ALC panel 30 having the same size as that used in the above-mentioned embodiment.
0a was completed, and the sound transmission loss (dB) was measured as a comparative example. The furring strip 14 used at this time has the same cross-sectional dimensions (40 mm width × 30 mm thickness) as the furring strip 40 used in the embodiment.
A length of 3000 mm) and a solid wooden square bar having no convex portion was attached to the ALC panel 30 with the nails 15 so as to have three steps. After that, a plaster board 13 having a thickness of 20 mm is attached to the outer surface of the furring strip 14 with a metal screw 16, and the partition wall 1
0a was completed. Then, in order to evaluate the sound insulation performance of the partition wall 10a, the center frequency of 125 Hz to
The sound transmission loss (dB) up to 4 kHz was measured.
The results are shown in FIG. 10 as a comparative example in the same manner as above.

As is clear from FIG. 10, in the fireproof and sound insulating partition wall 20 of the present invention, the transmission loss, that is, the sound insulating performance, which is higher than that of the comparative partition wall 10a, was obtained in all the measured regions. Especially in the comparative example, the center frequency is 3
At 00 Hz to 500 Hz, a decrease in transmission loss due to the coincidence effect peculiar to ALC, that is, a decrease in sound insulation performance is observed, but the fireproof and sound insulation partition wall 20 of the present invention does not have such a decrease, and the center frequency is 500 Hz or more. In each case, a transmission loss of more than 60 dB was obtained.

[0037]

As described above, the fireproof and soundproof partition wall of the present invention does not require any special mounting hardware, and since all the materials are arranged on the same straight line in the horizontal direction, construction on site is possible. Good performance and can also contribute to shortening the construction period. Further, it has an excellent effect that it is possible to obtain a fireproof and soundproof partition wall which simultaneously satisfies high soundproofing performance and fireproof performance.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment of a fireproof and soundproof partition wall of the present invention.

FIG. 2 is a transverse sectional view of the first embodiment of the same.

FIG. 3 is a vertical sectional view of the first embodiment of the above.

FIG. 4 is a perspective view of a furring strip according to the first embodiment.

FIG. 5 is a perspective view of a second embodiment of the fireproof and soundproof partition wall of the present invention.

FIG. 6 is a horizontal and vertical sectional view of a third embodiment of the fireproof and soundproof partition wall of the present invention.

FIG. 7 is a horizontal and vertical sectional view of a fourth embodiment of the fireproof and soundproof partition wall of the present invention.

FIG. 8 is a vertical cross-sectional view of a fifth embodiment of the fireproof and soundproof partition wall of the present invention.

FIG. 9 is a partial perspective view of a furring strip of a sixth embodiment of the fireproof and soundproof partition wall of the present invention.

FIG. 10 is a measurement result of sound transmission loss of Examples and Comparative Examples of the fireproof and soundproof partition wall of the present invention.

FIG. 11 is a cross-sectional view showing a conventional fireproof and soundproof partition wall.

FIG. 12 is a perspective view of an essential part showing a conventional fireproof and soundproof partition wall.

[Explanation of symbols]

10 Conventional partition wall 10a Conventional partition wall 11 ALC panel 12 Mortar 13 Fireproof board 14 Wooden furring strip 15 Nails 16 Screws 20 Fireproof and soundproof partition wall 20a Fireproof and soundproof partition wall A Inner wall 21 Fireproof and soundproof partition wall 22 Fireproof and soundproof partition wall 30 Lightweight aerated concrete panel (ALC panel) 40 Furnace edge 40a Convex portion 40b Recessed portion 41 Furnace edge 41a Convex portion 41b Recessed portion 42 Furnace edge 42a Convex portion 42b Recessed portion B External wall 43 Square rod 45 Plate member 50 Air layer 60 Joint material 70 screw 71 screw 72 screw 80 fireproof board 81 screw 82 screw 90 runner 90a vertical piece 91 L type angle 100 anchor 101 screw 110 ceiling 120 floor

Claims (3)

[Claims] 1. An inner wall is formed by arranging a plurality of panels side by side in a straight line, and furring edges extending horizontally in a plurality of panels are attached to both sides of the inner wall in a plurality of vertical steps. A fireproof and sound insulation partition wall in which a plurality of boards are juxtaposed on both sides of the wall to form an outer wall, and an air layer is formed between the outer wall and the inner wall. On the inner side of the inner wall, there are alternately formed mounting convex portions fixed to the panel of the inner wall and concave portions for forming a gap between the panel and fixed to one side surface of the panel. A fireproof and sound insulating partition wall, in which a raised portion of the furring strip and a concave portion of the furring strip on the other side face each other. 2. The fireproof and sound insulating partition wall according to claim 1, wherein a joint material is filled between the panels. 3. The panel is a lightweight cellular concrete panel, a calcium silicate molded board, a gypsum board, a wood wool cement board,
The fireproof and sound insulating partition wall according to claim 1 or 2, which is one of a pulp cement plate, a slate plate and an extruded plate.