JP3423885B2 - Sound insulation structure of slit joint and its construction method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound insulation structure for a slit joint in a concrete building or the like in which a slit material is arranged at a boundary position between a wall and a pillar or a floor.

[0002]

2. Description of the Related Art Conventionally, in a concrete building or the like, as shown in FIG. 3 or FIG. 4, the boundary between the wall 1 and the pillar 2 or the floor 3 in order to increase the toughness of the wall or the pillar in preparation for an earthquake or the like. A slit joint 4 is formed along the position.

The slit joint 4 is provided with a predetermined slit material, and as an example of the slit material, a flexible synthetic resin foam having elasticity such as foam polyethylene 5 and 5, and the foam polyethylene 5 are used. And a refractory material 6 arranged at a position sandwiched between the two.

The outside of the slit joint 4 is filled with a sealing material 7 for stopping water. Incidentally, reference numeral 8 in the drawing denotes a steady rest which is arranged through the slit joint 4.

[0005]

In the slit joint of this conventional example, since the sound insulation performance of the slit material made of the soft synthetic resin foam is low, the sound (noise) from the outside or the adjacent room is sufficiently shielded. It has the problem that it is impossible. Therefore, there is an inconvenience that a slit joint cannot be provided on the boundary wall of an apartment such as a condominium or a hotel.

Further, when the slit material is deformed by the influence of an earthquake or the like to form a gap, the sound insulation performance is further deteriorated, and the above-mentioned problems become more remarkable.

Therefore, in the slit joint in the conventional example, there is a problem to be solved to improve the sound insulation performance and sufficiently block the sound from the outside or the adjacent room.

[0008]

As a concrete means for solving the above-mentioned problems of the prior art, the present invention provides a boundary between a portion forming a wall (12) and a portion forming a pillar (13) or a floor (23). a slit joint is provided at the position (11), the slit joint (11), posts (13) side or floor (23) side
Mounting plate (14) and wall (12) side mounting
The plate (15), and the plate (14)
A slit material (16) filled between the slit (15) and
The plate (15) is provided with a protrusion (19).
And the plate (14) is fitted with the protrusion (19).
A detour forming plate (18) extending to the
The detour formation plate is provided inside the protrusion (19).
Due to the presence of (18), a detour (20) with a U-shaped cross section is created.
The present invention provides a sound insulation structure for slit joints, which is characterized by being formed .

The detour (20) is provided with a seal.
And a sealing material (21) is provided.
Furthermore, the sealing material (21) is made of silicone.
It is configured to be a formed gasket.

The present invention also relates to a method for constructing slit joints (11) provided at a boundary position between a portion forming a wall (12) and a portion forming a pillar (13) or a floor (23) ,
A mold having a protrusion (19) on the mold at the boundary position.
Rate (15) and detour extending to said protrusion (19)
A plate (14) having a channel forming plate (18);
And a pre-circuit for forming a detour is formed inside the protrusion (19).
Detour (20) having a U-shaped cross section due to the presence of the gate (18)
And placing the concrete on the formwork, and then removing the formwork, the plate (14) and the plate (15)
The present invention provides a slit joint construction method characterized by filling a slit material (16) between the sealing material (21) and the detour (20).
It is supposed to be arranged.

In the sound insulation structure of the slit joint according to the present invention, since the detour is formed and the sealing material is disposed in the detour, the vibration of the air is cut off, the sound insulation performance is improved, and an earthquake or the like occurs. Sound insulation performance does not deteriorate due to the effect of.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. First, Figure 1 is concrete
Slits provided at the boundary between the wall 12 and the pillar 13
It is a cross-sectional view of the joint 11. And Fig. 2 shows
Slits provided at the boundary between the wall 12 and the floor 23
It is a vertical cross-sectional view of the ground 11. This slit joint 11 is a pillar
Steel plate attached to 13 side or floor 23 side
14 and a steel plate 1 attached to the wall 12 side
5 and between the plates 14 and 15
The slit material 16 is provided.

One plate 14 has a width that is substantially the same as or slightly shorter than that of the wall 12, and is attached and fixed to concrete columns 13 or floors 23 by locking tools 17 at a plurality of appropriate positions. . In addition, a detour forming plate 18 extending toward the plate 15 is provided at a substantially central position of the plate 14.

The other plate 15 is the plate 14
It is attached to the concrete wall 12 so as to face it, and is bent outward to form a protrusion 19 at a substantially central position of the wall 12.

On the inner side of the projecting portion 19, due to the presence of the detour forming plate 18 extending from the plate 14, detours 20 are formed on both sides of the detour forming plate 18. That is, the detour 20 is shown in FIG.
As shown in FIG. 2, it has a U-shaped cross section.

Further, in the detour 20, cylindrical sealing materials 21 and 21 are arranged in a state of being crimped to both side surfaces 18a, 18a of the detour forming plate 18 and side surfaces 19a, 19a of the projecting portion 19, respectively. It is set up.

By forming the detour 20 with the plate 15 and the detour forming plate 18 as described above, sound (vibration of air) cannot go straight, so that the sound insulation performance is significantly improved. Furthermore, the sealing material 21, 2 is attached to the detour 20.
Since 1 is provided, the vibration of the air passing through the bypass 20 is blocked, and the sound insulation performance is further improved. Also,
In a small-to-medium-scale earthquake, since there is no gap between the sealing materials 21 and 21, the sound insulation performance is maintained in a good state. Then, due to the influence of a large-scale earthquake, the sealing material 2
Even if there is a gap between 1 and 21, the sound insulation performance does not deteriorate due to the presence of the bypass 20.

The sealing material 21 is preferably a gasket made of, for example, silicone,
In this case, since the silicone has excellent heat resistance and durability, the sound insulation performance and the fire resistance performance are improved.

The slit member 16 is made of, for example, a soft synthetic resin foam, and is preferably rock wool. Since rock wool has excellent heat insulation, sound absorption and fire resistance, sound insulation and fire resistance are further improved.

On the outer wall surface side of the slit joint 11,
A sealing material 22 for stopping water is filled.

Next, a method of constructing the sound insulation structure of the slit joint described above will be described. First, the construction of the slit joint 11 provided at the boundary position between the portion forming the wall 12 and the portion forming the column 13 is performed by a spacer having a length (a length corresponding to a predetermined joint width) on the dam plate of the formwork at the boundary position. (Not shown) and a plate 1 provided with a sealing material 21
4 and the plate 15 are attached at predetermined positions, and concrete is poured into the formwork.

After hardening the concrete, after removing the formwork and the spacer, by filling the slit material 16 between the plate 14 and the plate 15 and further filling the outer wall surface side with the sealing material 22 for waterproofing. , The slit joint 11 is formed.

Further, the construction of the slit joint 11 provided at the boundary position between the portion forming the wall 12 and the portion forming the floor 23 is carried out by placing the plate 14 at a predetermined position on the floor by the post-construction anchor after placing the concrete on the floor. Attach and then assemble the formwork. Then, after mounting a spacer (not shown) having a length matching the predetermined joint width and the plate 15 on which the sealing material 21 is arranged at a predetermined position of the mold, wall concrete is attached to the mold. To set.

After the concrete is hardened, as in the case described above, the form and the spacer are removed, the slit material 16 is filled between the plates 14 and 15, and the waterproof sealing material 22 is provided on the outer wall surface side. By filling, the slit joint 11 is formed.

[0025]

As described above, the sound insulation structure of the slit joint according to the present invention is provided with a portion forming a wall (12) and a pillar.
(13) or at the boundary position with the part that forms the floor (23)
A slit joint (11) to be provided , the slit joint being
(11) is attached to the pillar (13) side or floor (23) side
Plate (14) and a plate to be attached to the wall (12) side
Plate (15), the plate (14) and the plate (1
5) with slit material (16) filled between
The plate (15) is provided with a protrusion (19),
The plate (14) extends into the protrusion (19)
A detour forming plate (18) is provided,
Inside of (19), the detour forming plate (18)
The existence of the detour forms a U-shaped detour (20).
By virtue of this, since a detour is formed in particular, a straight line of sound (vibration of air) is hindered, and an excellent effect of improving sound insulation performance is achieved.

The detour (20) has a sealing material.
Since (21) is provided, air vibration
The sound insulation performance is further improved by being cut off. Also small and medium
In the case of the earthquake, there will be no gap in the sealing material, so sound insulation
Performance is maintained in good condition. If a large earthquake
Even if there is a gap in the sealing material due to the influence,
Various types of sound insulation performance does not deteriorate due to the presence of detours
Exerts the excellent effect of.

Further, the sealing material (21) is made of silicone.
Heat resistance due to the gasket formed of
Excellent in durability and durability, and suitable for fireproof performance as well as sound insulation performance
It has the excellent effect of improving.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a slit joint provided at a boundary position between a wall and a column according to the present invention.

FIG. 2 is a vertical cross-sectional view of a slit joint provided at a boundary position between a wall and a floor according to the present invention.

FIG. 3 is a cross-sectional view of a slit joint provided at a boundary position between a wall and a column according to a conventional example.

FIG. 4 is a vertical cross-sectional view of a slit joint provided at a boundary position between a wall and a floor according to a conventional example.

[Explanation of symbols]

1 wall Two pillars 3 floors 4 slit joints 5 expanded polyethylene 6 Fireproof material 7 Sealant 8 steady rest 11 slit joints 12 walls 13 pillars 14 plates 15 plates 16 slit material 17 Locking tool 18 Detour formation plate 18a side surface 19 Projection 19a side 20 detour 21 Sealant 22 Sealant for water stop 23 floors

Continuation of the front page (56) Reference JP-A-56-93979 (JP, A) JP-A-3-144057 (JP, A) Actually opened 63-111564 (JP, U) Actually opened 60-53914 (JP , U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E04B 1/62-1/92 E04H 9/02 E04G 15/06

Claims (5)

(57) [Claims] 1. A portion and a pillar (13) forming a wall (12 ).
Or a floor scan <br/> slit joint provided at a boundary position of a member which forms a (23) (11), the slit joint (11), posts (13) side or floor (2
The plate (14) attached to the 3) side and the wall (12) side
A plate (15) attached to the plate, and the plate (1)
Slit material filled between 4) and the plate (15)
(16), the plate (15) is provided with a protrusion (19), and the plate (14) extends to the protrusion (19).
A detour forming plate (18) is provided, and the inside of the protrusion (19) is the detour forming plate.
Due to the presence of (18), a detour (20) with a U-shaped cross section is created.
A sound insulation structure with slit joints characterized by being formed . 2. A sealing material (2) is provided on the detour (20).
The method according to claim 1, wherein 1) is provided.
Sound insulation structure of the slit joint. 3. The sealing material (21) is made of silicone.
The formed gasket is characterized in that
Sound insulation structure with slit joints described in. 4. A portion and a pillar (13) forming a wall (12 ).
Alternatively, it is a method of constructing a slit joint (11) provided at a boundary position with a portion forming a floor (23) , wherein the mold having the projecting portion (19) at the boundary position is used.
Rate (15) and detour extending to said protrusion (19)
A plate (14) having a channel forming plate (18);
And a pre-circuit for forming a detour is formed inside the protrusion (19).
Detour (20) having a U-shaped cross section due to the presence of the gate (18)
And placing concrete on the formwork, the formwork is removed, and a slot is provided between the plate (14) and the plate (15).
A method for constructing slit joints, which comprises filling with a filler material (16) . 5. The sealing material (2 ) is provided on the detour (20).
The method for constructing slit joints according to claim 4, wherein 1) is provided.