JP4933841B2 - Building vibration control and sound insulation structure and vibration control sound insulation sheet - Google Patents

Description

  The present invention relates to a vibration control and sound insulation structure for a building and a vibration control and sound insulation sheet.

  From the perspective of sound, the comfort of a residential space is demanded to live in a quiet environment and demanded to make sound freely without worrying about the surroundings. To that end, research and development of the structure of buildings equipped with walls and ceilings to block the propagation of noise and vibration from the outside to the inside and from the inside to the outside by means of walls and ceilings, etc. are underway. .

For example, in the invention according to Patent Document 1, a vibration-damping and sound-insulating sheet having a vibration-damping and sound-insulating function based on asphalt is pasted on the entire surface of a gypsum board used as a wall surface (face material). The invention has been described.
Here, the object has a phenomenon (coincidence effect) in which the vibration on the transmission side of the object increases due to the resonance between the incident sound of a certain frequency and the natural vibration, and the transmission loss decreases. For this reason, the invention according to Patent Document 1 suppresses resonance and improves vibration damping and sound insulation by sticking a vibration damping and sound insulating sheet to a face material in order to prevent a coincidence effect.

JP-A-8-232361 (FIG. 1)

However, since the vibration-damping and sound-insulating sheet according to Patent Document 1 may have a thickness of 20 mm and is pasted on the entire surface of the gypsum board, for example, the vibration-damping and sound-insulating sheet is pasted. When a face material and a face material to which the vibration damping sound insulation sheet is not attached are installed in parallel, there is a problem that unevenness occurs at the joint between the two.
This invention is made | formed in order to solve this subject, and makes it a subject to provide the vibration suppression sound insulation structure and vibration suppression sound insulation sheet | seat which do not produce unevenness in the joint of a face material.

The invention devised to solve this problem includes a face member, a plurality of frame members attached to one surface of the face member at intervals, and the frame member on one surface of the face member. A viscoelastic body based on a metal plate and butyl rubber interposed between the metal plate and the face material. And the sticking area of the vibration-damping and sound-insulating sheet is 66% or more with respect to the area of the face material, and the viscoelastic body is a synthetic rubber obtained by kneading butyl rubber and an additive, It is characterized by having an entry of 45, a density of 1.7 g / cc, and a non-volatile content of 98% or more .

  According to this invention, the vibration-damping and sound-insulating sheet obtained by superimposing the viscoelastic body and the metal plate is attached to the face material. This vibration-damping sound-insulating sheet is composed of a viscoelastic body having elasticity and a metal plate that restrains the vibration of the viscoelastic body. That is, by constraining the vibration transmitted to the viscoelastic body with the metal plate, the vibration energy is converted into thermal energy, so that the vibration is attenuated. Thereby, since the natural vibration of the face material changes, the resonance of the face material due to a certain frequency can be suppressed. Moreover, since it has a metal plate, a sound can be reflected and the sound insulation effect can be improved.

  Here, since the present invention suppresses the face material and enhances the sound insulation effect, it is not necessary to attach a vibration-damping and sound-insulating sheet to all surfaces of the face material. That is, since a resonance can be suppressed by sticking a vibration suppression and sound insulation sheet between a plurality of frame members installed on the face material, a vibration suppression and sound insulation effect can be enhanced. Furthermore, since the vibration-damping and sound-insulating sheet is affixed between a plurality of frame materials, when a surface material on which the vibration-damping and sound-insulating sheet is affixed and a surface material on which the vibration-damping and sound-insulating sheet is not affixed are installed Even so, it can be constructed so that unevenness does not occur at the joint between them. Moreover, since the construction accuracy which pastes without gap is also unnecessary, construction is easy. Moreover, since a viscoelastic body uses butyl rubber which has self-adhesiveness as a base material, it can be easily affixed on a face material.

The invention according to claim 2 is a vibration-damping and sound-insulating sheet attached to a part of a face material constituting a building, and a butyl rubber interposed between the metal plate and the face plate. A viscoelastic body having a base material, and is pasted at a ratio of 66% or more with respect to the area of the face material. The viscoelastic body is a synthetic rubber obtained by kneading butyl rubber and an additive. The penetration is 45, the density is 1.7 g / cc, and the non-volatile content is 98% or more .

  According to this invention, for example, the vibration can be suppressed and the vibration damping can be suppressed by pasting the vibration damping sound insulation sheet on a part of the face material constituting the floor surface, wall surface, ceiling surface, and the like of the building. Even when the face material on which the sound insulation sheet is attached and the face material on which the vibration damping sound insulation sheet is not attached are installed in parallel, it can be constructed so as not to cause unevenness at the joint between them. In addition, since a vibration suppression and sound insulation sheet can be appropriately attached according to the situation at the site, for example, a building having a vibration suppression and sound insulation function can be constructed even during renovation. Moreover, since a viscoelastic body uses butyl rubber which has self-adhesiveness as a base material, it can be easily affixed on a face material.

  According to the present invention, it is only necessary to attach a vibration-damping sound insulation sheet in consideration of the size of the face material, the position of the frame material, etc. The vibration control and sound insulation structure can be constructed.

<First embodiment>
A first embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing a vibration damping and sound insulation structure according to the first embodiment. 2A and 2B are perspective views showing the vibration-damping and sound-insulating sheet according to the first embodiment, where FIG. 2A is an overall view and FIG. 2B is an enlarged view. 3 is a cross-sectional view taken along the line AA in FIG. FIG. 4 is a diagram showing the measurement result of the transmission loss amount of the vibration damping and sound insulation sheet according to the present invention.
In description of 1st embodiment, the case where the wall frame of a frame wall construction method is built is demonstrated to an example. In addition, the dimension used in description of 1st embodiment is an illustration to the last, Comprising: This invention is not limited.

  The vibration suppression and sound insulation structure 1 according to the first embodiment includes a face member 2 and a plurality of frame members 3 (an upper frame member 3a, a lower frame member 3b, and a vertical frame member attached to one surface of the face member 2). 3c), the vibration damping and sound insulation sheets 4, 4..., And the fillers 5, 5. The vibration suppression and sound insulation structure 1 according to the first embodiment is used as a bearing wall of a house.

In the first embodiment, as shown in FIG. 1, the wall set G includes two opposing face members 2, 2, an upper frame member 3 a, a lower frame member 3 b, and vertical frame members 3 c, 3 c.・ Consists of The wall set G is constructed so that the frame set has a substantially ladder shape with a vertical frame member 3c interposed between the upper frame member 3a and the lower frame member 3b. In 1st embodiment, it forms so that the space | interval of the vertical frame materials 3c may be set to about 40 cm. The length of the vertical frame member 3c is about 260 cm. The face material 2 uses a gypsum board in the first embodiment.
In addition, the face material 2 is not limited to a gypsum board, For example, metal plates, such as iron, copper, aluminum, and aluminum alloy, plate materials, such as concrete and glass, and resin plates, such as a polyvinyl chloride, Also good. Similarly, the material of the frame member 3 is not limited.

  The vibration damping sound insulation sheet 4 suppresses the resonance of the face material 2 by damping the vibration of the face material 2. As shown in FIG. 2, the vibration-damping and sound-insulating sheet 4 is composed of a viscoelastic body 4a and a metal plate 4b from the side in contact with the face material 2, each having substantially the same size and each having a substantially rectangular shape in plan view. It is formed by laminating members. In the first embodiment, the vibration-damping and sound-insulating sheet 4 is formed to have a length and width of about 60 cm × 30 cm and a thickness of about 1.6 mm. As shown in FIGS. 1 and 3, the vibration-damping and sound-insulating sheet 4 is affixed to the inner surface of one face member 2 of the face members 2 and 2 constituting the wall set G in the first embodiment. .

The viscoelastic body 4a is interposed between the face material 2 and the metal plate 4b, and changes the natural vibration of the face material 2 by changing the vibration energy acting on the face material 2 into thermal energy. It is something to be made. In the first embodiment, the viscoelastic body 4a uses a synthetic rubber in which butyl rubber is used as a base material and butyl rubber and a known additive are kneaded. The physical properties of the viscoelastic body 4a in the first embodiment are a penetration of 45 (conforming to JISK2207), a density of 1.7 g / cc ( conforming to JISK6268) , and a non-volatile content of 98 % or more (120 ° C. × 24 hours). . The thickness of the viscoelastic body 4a is about 1.4 mm.

Since the butyl rubber which is the base material of the viscoelastic body 4a has self-adhesiveness, the viscoelastic body 4a (vibration-damping sound insulating sheet 4) can be attached to the face material 2 by pressing from the metal plate 4b side. . Here, the self-adhesive property means a property that can be attached to the surface of an adherend without using an adhesive or a pressure-sensitive adhesive material.
Note that, for example, an adhesive layer may be formed on the viscoelastic body 4b using a known epoxy resin adhesive or the like, and the face material 2 and the viscoelastic body 4b may be bonded.

  In addition, since butyl rubber is excellent in weather resistance, it can maintain a damping effect even in a cold region, for example, in a case where the temperature is higher than room temperature such as the inside of a wall surface or the back of a ceiling. .

The metal plate 4b plays a role as a constraining layer that constrains the vibration of the viscoelastic body 4b.
The metal plate 4b is a zinc-coated steel plate in the first embodiment. The thickness of the zinc-coated steel sheet is about 0.2 mm. The zinc-coated steel sheet is suitable for the metal plate 4b because it is difficult to rust, can be easily cut, and can be obtained at a relatively low cost.
The metal plate 4b is a zinc-coated steel plate in the first embodiment, but is not limited to this, and may be a plate material made of lead, iron, stainless steel, aluminum, or the like.

  In addition, although the vibration suppression sound insulation sheet 4 which concerns on 1st embodiment was formed with the said shape and magnitude | size, it is not limited to this. What is necessary is just to set suitably according to the magnitude | size and shape of the part enclosed by several frame material 3,3 ... in the surface of the face material 2. FIG.

  Moreover, although the vibration damping sound insulation sheet 4 which concerns on 1st embodiment is thickness about 1.6 mm, it is not limited to this. What is necessary is just to set the thickness of the viscoelastic body 4a and the metal plate 4b according to the magnitude | size and thickness of the face material 2, the use of the room which uses the damping sound insulation structure 1, etc. FIG.

  The vibration-damping and sound-insulating sheet 4 is manufactured by pressing and fixing one surface of the viscoelastic body 4a formed in the above-described dimensions and the metal plate 4b. In addition, although the vibration suppression sound insulation sheet 4 was manufactured as mentioned above in 1st embodiment, it is not limited to this, Another manufacturing method may be sufficient.

  In the first embodiment, four vibration-damping and sound-insulating sheets 4 are pasted in parallel, but the number of sheets is not limited. For example, the portion having the largest amplitude width of the face material 2 (amplitude belly) Alternatively, the vibration-damping and sound-insulating sheet 4 may be attached.

The filler 5 is for exhibiting a sound absorbing effect. In the first embodiment, as shown in FIGS. 1 and 3, the filler 5 is installed on the face material 2 side of the face materials 2 and 2 on which the vibration-damping sound insulation sheet 4 is not attached. . Thus, the sound insulation effect can be further enhanced by installing the filler 5 inside the face material 2. As the filler 5, a known rock wool is used in the first embodiment, but other fillers such as glass wool may be used. The filler 5 is preferably a material that easily absorbs sound.
In addition, in 1st embodiment, although the filler 5 was installed in the above-mentioned position, it is not limited to this. For example, although not shown, the face material 2 or 2 may be installed on the face material 2 side on which the vibration-damping sound insulation sheet 4 is pasted, or the face material 2 or 2 or the upper frame material 3a. Alternatively, it may be installed so as to fill a space defined by the lower frame member 3b and the vertical frame members 3c, 3c.

In addition, the transmission loss amount of the vibration damping sound insulating sheet 4 ′ (not shown) according to the present invention was measured. The purpose of this measurement is to confirm the sound insulation grade and the sound insulation performance when the damping sound insulation sheet 4 ′ having a predetermined area is attached to the gypsum board.
The measuring method was based on the measuring method of the air sound insulation performance of a JIS A 1417 building. Table 1 shows the measurement equipment and measurement conditions.

  The vibration-damping and sound-insulating sheet 4 ′ used for the measurement is made of a thin plate-like butyl rubber having a thickness of 1.4 mm and a stainless steel plate having a thickness of 0.2 mm, and has a length and width of about 300 mm × 500 mm. This vibration-damping and sound-insulating sheet 4 'is pasted on a gypsum board having a length and width of about 900 mm x 1200 mm and a thickness of 12.5 mm. In this measurement, the sound pressure level at each frequency is measured when the vibration-damping sound-insulating sheet 4 'is pasted at a rate of 0%, 33%, 66%, 100% with respect to the area of the gypsum board. The sound insulation grade and sound insulation performance are extracted. The measurement results in this measurement are shown in FIG.

  As shown in FIG. 4 and Table 2, when the affixing area of the vibration and sound insulation sheet 4 'was 66% with respect to the gypsum board, the sound insulation grade was D-35. On the other hand, when the affixing area of the vibration and sound insulation sheet 4 ′ was 0% with respect to the gypsum board (when the vibration suppression and sound insulation sheet 4 ′ was not used), the sound insulation grade was D-30. That is, it was confirmed that if the sticking area of the vibration control and sound insulation sheet 4 'on the gypsum board is 66% or more, the sound insulation grade is improved by one rank compared to the case where the vibration control and sound insulation sheet 4' is not attached. .

  According to the vibration suppression and sound insulation structure 1 described above, the vibration suppression and sound insulation sheet 4 in which the viscoelastic body 4 a and the metal plate 4 b are overlapped is attached to the face material 2. The vibration-damping and sound-insulating sheet 4 includes a viscoelastic body 4a having elasticity and a metal plate 4b that restrains vibration of the viscoelastic body 4a. That is, by constraining the vibration transmitted to the viscoelastic body 4a with the metal plate 4b, the vibration energy is converted into thermal energy, so that the vibration is attenuated. Thereby, since the natural vibration of the face material 2 changes, the resonance of the face material 2 due to a certain frequency can be suppressed. Moreover, since it has the metal plate 4b, a sound can be reflected and the sound insulation effect can be improved.

In addition, since the present invention suppresses the face material 2 and enhances the sound insulation effect, it is not necessary to paste the vibration and sound insulation sheet 4 on all surfaces of the face material 2. That is, in the surface of the face material 2, by sticking the vibration-damping and sound-insulating sheet 4 to a portion surrounded by a plurality of frame materials 3 (upper frame material 3a, lower frame material 3b, vertical frame materials 3c, 3c). , Vibration suppression and sound insulation effect can be enhanced. Accordingly, the vibration damping and sound insulation sheet 4 may be appropriately attached in consideration of the size of the face material 2, the position of the frame member 3, and the like. Even when the face materials 2 to which the sheet 4 is not attached are installed in parallel, the face material 2 can be constructed so as not to be uneven at the joint of the face materials 2. Moreover, since only the vibration-damping sound insulation sheet 4 is stuck and the construction accuracy which sticks without a gap is also unnecessary, construction is easy.
In consideration of the measurement results described above, a vibration damping and sound insulation effect can be obtained if the area where the vibration damping and sound insulating sheet 4 is applied is about 66% or more with respect to the area of the face material 2.

Moreover, since the vibration suppression sound insulation sheet 4 can be appropriately affixed according to the situation at the site, for example, a building having a vibration suppression sound insulation function can be constructed even during renovation.
Moreover, since the viscoelastic body 4a uses butyl rubber having self-adhesive properties as a base material, it can be easily attached to a face material.

  As described above, the best mode in the first embodiment has been described in detail, but can be appropriately changed without departing from the spirit of the present invention. In the following description, the same reference numerals and descriptions as those in the first embodiment are omitted.

  For example, as in the second embodiment shown in FIG. 5, the vibration-damping and sound-insulating sheet 4 may be affixed to the inner surfaces of both the face materials 2 and 2 of the facing face materials 2 and 2.

  Moreover, in 1st embodiment, although the case where the vibration suppression sound insulation sheet 4 was affixed on the wall set G was demonstrated as an example, it is not limited to this use. For example, the vibration-damping and sound-insulating sheet 4 may be attached to a face material (not shown) used for a ceiling, a floor, or the like.

It is the perspective view which showed the vibration suppression sound insulation structure which concerns on 1st embodiment. It is the perspective view which showed the vibration suppression sound insulation sheet concerning 1st embodiment, Comprising: (a) is a general view, (b) is an enlarged view. It is AA sectional drawing of FIG. It is the figure which showed the measurement result of the transmission loss amount of the vibration suppression sound insulation sheet concerning this invention. It is sectional drawing which showed the vibration suppression sound insulation structure which concerns on 2nd embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vibration suppression sound insulation structure 2 Face material 3 Frame material 3a Upper frame material 3b Lower frame material 3c Vertical frame material 4 Vibration suppression sound insulation sheet 4a Viscoelastic body 4b Metal plate

Claims (2)

Face material,
A plurality of frame members attached to one surface of the face material at a distance from each other;
A vibration-damping and sound-insulating sheet pasted between the frame members on one surface of the face material,
The vibration-damping and sound-insulating sheet has a metal plate, and a viscoelastic body based on butyl rubber interposed between the metal plate and the face material,
The affixing area of the vibration and sound insulation sheet is 66% or more with respect to the area of the face material,
The viscoelastic body is a synthetic rubber obtained by kneading butyl rubber and an additive, and has a penetration of 45, a density of 1.7 g / cc, and a non-volatile content of 98% or more . It is a vibration-damping and sound-insulating sheet that is affixed to some of the face materials that make up the building,
A metal plate, and a viscoelastic body based on butyl rubber interposed between the metal plate and the face material,
It is stuck at a rate of 66% or more with respect to the area of the face material
The viscoelastic body is a synthetic rubber obtained by kneading butyl rubber and an additive, and has a penetration of 45, a density of 1.7 g / cc, and a non-volatile content of 98% or more .

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