JP4042899B2 - High sound insulation composite wall - Google Patents

Description

【００１６】
表１は、ＪＩＳ Ａ １４１６の試験方法により得られた空気音遮断性能である音響透過損失の結果を示す。まず、従来のような面密度３６０ｋｇ／ｍ^２、厚さ１５０ｍｍのコンクリート造界壁のみの場合、その遮音性能は、ＪＩＳ Ａ１４１９の空気音遮断性能評価線Ｒｒ−５０相当となる。これに対し、図１〜図３に示された高遮音複合壁によれば、空気音遮断性能評価線Ｒｒ−５５以上の空気音遮断性能の効果を発揮し、かかる性能は、面密度１２００ｋｇ／ｍ^２のコンクリート厚２６０ｍｍに相当する性能である。さらに、リブ付パネルの平板状の面材部の外側（室内側）面に繊維混入石膏板（厚さ５ｍｍ）からなる不燃性板材を貼り付け、その内側面のリブ間にグラスウールの不燃性吸音材料を当接させて敷き詰めた、図４〜図６に示す本発明の実施形態に係る構造によれば、面密度１２００ｋｇ／ｍ^２のコンクリート厚１０００ｍｍに相当する遮音性能Ｒｒ−６５相当の音響透過損失の遮音効果を奏するものである。また、片側室のみリブ付パネルを設置し、リブ付きパネルの中空層側、すなわち内側面のリブ間にグラスウールの不燃性吸音材料を敷き詰め、そのリブ付パネルの外側（室内側）面に繊維混入石膏板（厚さ５ｍｍ）からなる不燃性板材を貼り付けた構造でも遮音性能Ｒｒ−５５以上の空気音遮断性能の効果を発揮する。よって、本発明の複合壁構造は建物の構造上必要な耐力壁であるコンクリート造界壁または事前成形されたプレキャストコンクリート造界壁のコンクリート壁の厚さを増さずに、また、従来からある中空層の厚さを変えず、すなわち、居住面積を減らすことなく、コンクリートと乾式軽量壁の間の中空層が空気ばねとして働くことに起因した低音域における遮音欠損を起こさせることなく、コンクリート壁の遮音性能を格段に向上させ、良好な遮音性能居住空間を提供することができる。また、本発明の複合壁は、仕上げ性に優れるばかりでなく、既存の界壁を本発明の複合壁にリフォームすることも容易に行うことができるので、既存のコンクリート造界壁に適用し、その遮音性能を大幅に向上させることが可能となった。
【００１７】
なお、以上に説明してきた本発明は、上記の実施の形態に限定されるものではなく、様々な改変を施すことが可能である。例えば、リブ部の数や形状も上記の実施の形態に限定されるものではない。また、リブ部と面材部とは押出成形で一体成形により製作されることに限定されず、個別に用意された面材部とリブ部とをリブ部の全面又は所定領域に渡って設けた接着剤によって面接着する態様で一体的に製作してもよい。
【００１８】
【発明の効果】
以上説明してきたように、本発明の高遮音複合壁によれば、コンクリート造界壁に厚さ５０〜７０ｍｍの中空層を介して配置される乾式軽量壁を備えた既存の複合壁において、乾式軽量壁が、乾式軽量材料からなる、平板状の面材部と該面材部の内側に少なくとも一つの上下方向に延びるリブ部を有するパネルであって、その面材部の外側面に不燃性板材が貼り付けられていると共にその内側面に不燃性吸音材が当接して配設されているパネルからなるので、厚さ５０〜７０ｍｍの中空層に生じ易い空気ばね効果による低音域における遮音性の低下を防ぎ、音環境に関して高規格の居住空間を提供することができる。すなわち、パネルにリブ部を設けることにより、面材部の重量を変えずにその剛性を向上させて、低音域の遮音性能を改善すると共に、不燃性板材と不燃性吸音材を適切に配置することにより、格段の高遮音性能を得ることができる。なお、パネルはリブ部の一端において可動的に固定され、リブ部の他端において建築物に固定されているに過ぎないので、地震などの変位に対しても乾式軽量壁の故障が少なく、補修の必要の少ない居住空間を提供することができる。
【図面の簡単な説明】
【図１】 参考例である高遮音複合壁の斜視図である。
【図２】 図１のII−II線による断面図である。
【図３】 図２のIII−III線による断面図である。
【図４】 本発明の実施の形態に係る高遮音複合壁の斜視図である。
【図５】 図４のＶ−Ｖ線による断面図である。
【図６】 図５のVI−VI線による断面図である。
【図７】 従来の界壁を示す図である。
【図８】 従来の複合壁を示す図である。
【符号の説明】
１１、３１…高遮音複合壁、１２…界壁、１３…中空層、１４…リブ付きパネル（乾式壁）、１４ａ…面材部、１４ｂ…リブ部、２０…ランナー、２１…切り込み溝、３３…不燃性板材、３５…不燃性吸音材。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sound insulation composite wall.
[0002]
[Prior art]
Conventionally, there have been the following two methods for improving the sound insulation performance of a concrete wall made in the field, which is a load-bearing wall of a building, or a preformed precast concrete wall. First, the first method will be described based on the longitudinal section of FIG. Between the upper concrete slab 1 provided with the beam portion 1a that constitutes the ceiling of the dwelling unit and the lower concrete slab 2 that constitutes the floor, a concrete wall 3 that separates adjacent dwelling units is bridged. In order to improve the sound insulation performance of the boundary wall 3, the first method is to increase the thickness of the normal boundary wall 3 shown by a solid line in FIG. 7 as shown by a dotted line. It was.
On the other hand, a second method for improving the sound insulation performance will be described with reference to FIG. This method constitutes a composite wall, in which a hollow layer 5 having a thickness of 50 to 70 mm is provided in the vicinity of a concrete wall 4 and a wooden or metal base 6 extending vertically in the hollow layer 5 is ceilingd. And fix to the floor. Then, one or two finishing plates 7 such as gypsum board as a dry lightweight wall are attached to the base 6 with a plurality of screws arranged at equal intervals in the vertical direction, and in some cases, non-combustible such as glass wool and rock wool on the hollow layer 5 The sound absorbing material 8 is inserted.
[0003]
[Problems to be solved by the invention]
However, the conventional high sound insulation measures described above have the following problems. That is, in the first method, since the wall thickness of the concrete wall 3 having a large weight is simply increased, the weight of the building itself becomes heavier, and the cost is very high. It is difficult to adopt. In addition, the concrete boundary wall, which is a wet wall, has been expensive in the long term for repairs such as cracks generated on its surface, and has problems in terms of finish and maintenance.
[0004]
On the other hand, in the second method, the air of the narrow (50-70 mm) hollow layer 5 provided between the concrete wall 4 and the finished plate material 7 which is a dry lightweight wall acts as a spring, There are problems such as causing a resonance phenomenon in which the sound insulation property falls below the sound insulation performance of the concrete wall itself, or hardly improving the sound insulation performance of the concrete wall itself, which is efficient in the entire low to high range High sound insulation performance could not be obtained. Further, if the thickness of the hollow layer 5 is increased to cope with this, the thickness T of the entire sound insulating wall increases, and there is a problem that the living area cannot be effectively used. Furthermore, in view of the above, a method of increasing the weight (surface density) of the finished plate material 7 is also conceivable, but in that case, the weight per finished plate material becomes heavy, and there are difficulties in workability, finishing. Due to the coincidence effect of the single plate, the sound insulation performance in the mid-high range is reduced. In addition, dry lightweight walls used in the vicinity of existing concrete masonry walls are affixed to a wooden or metal base with screws, etc., so when an displacement occurs between the upper and lower concrete slabs due to an earthquake, stress concentrates on the screws. There are also problems in terms of long-term finish, such as cracks and cracks.
[0005]
The present invention has been made in view of the above-described conventional problems, and is a composite wall that is excellent in sound insulation without increasing the overall thickness of the composite wall, the boundary wall, the hollow layer, and the individual thickness of the finishing material. The purpose is to provide.
[0006]
[Means for Solving the Problems]
In order to achieve the above-described object, the present invention provides a concrete building wall cast in the field, which is a load-bearing wall of a building, or a preformed precast concrete building wall, and a thickness outside the wall. In a highly sound-insulating composite wall including a dry lightweight wall disposed through a hollow layer of 50 to 70 mm, the dry wall is made of a dry lightweight material, and is formed on a flat plate-like face member portion and inside the face member portion. A panel having at least one vertically extending rib portion provided in an integrally molded or surface-adhered manner, and a non-combustible plate material is affixed to the outer surface of the face material portion and the inner surface thereof It consists of a panel in contact with a non-combustible sound absorbing material , and the panel is movably fixed at one end of the rib part to the fixed part of the building, and at the other end of the rib part That it ’s fixed together. And butterflies.
[0007]
Preferably, at one end of the rib portion of the panel, a notch groove having a predetermined depth extending in the width direction of the panel and tilting closer to the boundary wall as the deep portion is formed is formed, and the panel is fixed to the building. By inserting a runner extending in the width direction of the dry wall provided in the portion into the cut groove, the runner is movably fixed in the extending direction of the cut groove, and is fixed integrally at the other end of the rib portion.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a highly sound-insulating composite wall according to an embodiment of the present invention will be described with reference to the accompanying drawings.
[0009]
1, 2 and 3 are a perspective view, a transverse sectional view and a longitudinal sectional view for showing a high sound insulation composite wall 11 as a premise of the present invention. The highly sound-insulating composite wall 11 includes a concrete boundary wall or a pre-cast concrete boundary wall 12 that has a wall thickness of 150 to 200 mm and is cast in the field as a load bearing wall. On both sides of the boundary wall 12, a hollow layer 13 of 60 mm (a dimension between a face material portion 14a described later and the boundary wall 12) is provided, and further, outside of each hollow layer 13 (the boundary wall in the hollow layer) On the reverse side, a plurality of ribbed panels 14 are provided. Each ribbed panel 14, fiber incorporation gypsum board made dry lightweight material such as calcium silicate plate or a gypsum board, a face material portion 14a which functions as a plate-like finish, a hollow layer side of the face material portion 14a And three rib portions 14b provided on the inner side and extending vertically. Face material portion 14a is extended beauty substantially parallel to the corresponding surface of the Sakaikabe 12 and has a thickness of 8 mm, a width (horizontal extension dimension) has a 600 mm. On the other hand, the three rib portions 14b extend in the length direction (vertical direction) of the face material portion 14a. Also, two of the three ribs 14b are disposed in the width direction both end portions of the face material portion 14a, ribbed panel 14 adjacent the two are as match the adjacent rib portion 14b Installed. The remaining one rib portion 14b is disposed at the center in the width direction between the other two rib portions 14b . Each rib portion 14b is provided with a rectangular hollow portion in the cross section, but may be solid. Each rib portion 14 b protrudes 42 mm toward the field wall 12 from the surface of the face material portion 14 a on the hollow layer 13 side (inner side) . Therefore, the tip of the rib portion 14b and the corresponding surface of the field wall 12 are separated without contacting each other. Moreover, the ribbed panel 14 having such a configuration is manufactured by integrally molding the face material portion 14a and the rib portion 14b by an extrusion molding method. about 27 kg / ^{m 2} and made very light weight, workability is Ru excellent der.
[0010]
Next, the installation method of the panel with a rib of the structure mentioned above is demonstrated. As shown in FIG. 3, the lower portion of each ribbed panel 14 is integrally fixed to the floor surface portion 12 a (fixed portion of the building) of the wall 12 via the lower runner 15. The lower runner 15 is composed of a plate-like member having an L-shaped vertical section, and includes a base portion 15a extending along the floor surface portion 12a and a support portion 15b rising from the base portion 15a at a substantially right angle. The lower runner 15 is fixed to the floor surface portion 12a by screws 16 in the base portion 15a, and the lower portion of each ribbed panel 14 is fixed to the support portion 15b of the lower runner 15 by a tapping screw 17 penetrating the rib portion 14b. . Further, between the lower end of the panel 14 with ribs and the floor surface portion 12a, a plurality of four-round processing fillers 18 and a sealing material 19 provided outside thereof are disposed.
[0011]
On the other hand, the top of each ribbed panel 14 is mounted movably in the ceiling portion 12b of Sakaikabe 12 (fixed portion of a building) through the top runner 20. The top runner 20 is made vertical section L-shaped plate-like member, a base portion 20a extending along the ceiling portion 12b, made of a rolled Bitei Ru supporting portion 20b substantially perpendicularly downward therefrom. The top runner 20 is fixed to the ceiling portion 12b by a screw 16 in the base portion 20a, and extends beauty in the width direction of the panel 14 constituting the dry weight walls. Further, a cut groove 21 for accommodating the support portion 20b of the upper runner 20 is formed at the upper end of the rib portion 14b of the panel 14 with ribs. Notches 21 is a groove Ru extend beauty in the width direction of the ribbed panel 14 in the longitudinal direction has a predetermined depth and ribbed panel 14, the groove as the depth progresses wide notch narrows portion 21a And a groove portion 21b that proceeds deeply at a constant width therefrom. Further, the groove portion 21b extends slightly inclined from the vertical direction so that the deeper the portion is, the closer to the boundary wall. Top of each ribbed panel 14, by inserting the supporting portion 20b of the upper runner 20 in notches 21, is mounted movably with respect to the upper runner 20. Between the upper end of the panel 14 with a rib, and the ceiling part 12b, the some filler 18 for four rounds processing and the sealing material 19 provided in the outer side are arrange | positioned.
[0012]
In the highly sound-insulating composite wall 11 having the above-described configuration, first, by using the above-described panel 14 with ribs, the thickness of the face material portion 14a is not increased, that is, the weight of the finished plate material is increased. Without increasing the rigidity of the panel, of course, the hollow layer itself can remain in the conventional narrow thickness (in the range of 50 to 70 mm), and can improve the sound insulation in the low frequency range that tends to fall due to the spring effect of air. . As for the improvement of the material strength of the panel with ribs, when there is no rib part , when the bending breaking load is about 490 N (50 kgf) with a central concentrated line load of width 600 mm and span 800 mm, three ribs are used as described above. By providing the portion, the breaking load is improved to about 5880 N (600 kgf). Further, since the surface of the highly sound-insulating composite wall 11 is not a wet wall but a dry wall, it is possible to reduce labor and cost for repairing the surface, such as cracks, as compared with the conventional wall shown in FIG. Furthermore, since the lower end of the rib portion of the ribbed panel is integrally fixed and the upper end of the rib portion is movably attached, the ribbed panel is displaced relative to the concrete slab including the ceiling and floor due to an earthquake, etc. However, the upper end portion of the ribbed panel can be slid in the width direction of the ribbed panel with respect to the runner, so that the displacement can be absorbed efficiently. Therefore, stress is not concentrated on the panel fixing screw, and it is possible to prevent the ribbed panel which is a dry lightweight wall from being cracked or cracked and to maintain good long-term finish.
[0013]
Next, based on FIGS. 4-6, the highly sound-insulated composite wall which concerns on embodiment of this invention is demonstrated. 4 to 6, the same reference numerals as those in FIGS. 1 to 3 indicate the same or corresponding parts. In the high sound insulation composite wall 31 according to the embodiment of the present invention, in the high sound insulation composite wall which references illustrated in FIGS. 1-3, the outer surface of the face plate portion 14a of the ribbed panel 14 (dwelling interior side surface Further, for example , a non-combustible plate material 33 having a thickness of 5 mm made of a fiber-mixed gypsum plate is attached. The hollow layer 13 is provided with a noncombustible sound absorbing material 35 made of, for example , glass wool. Specifically, the incombustible sound absorbing material 35 is provided at an end adjacent to the central rib portion 14b so as to abut the inner surface (inner side of the composite wall) of the face material portion 14a of the panel 14 with ribs. Ru Tei paved between the rib portion 14b. In the high sound insulation composite wall 31 having a configuration such as this, as with high sound insulation composite wall illustrated in FIGS. 1 to 3, compared with the conventional, reduced labor and cost of repairing cracks, etc., the surface In addition , even if the ribbed panel is displaced relative to the concrete slab including the ceiling and floor due to an earthquake, the ribbed panel is prevented from cracking and cracking, and the long-term finish is also maintained. it can. Provision of the incombustible sound absorbing material 35 which is laid between the incombustible sheet material 33 and the rib portion 14b, is further improved sound insulation performance.
[0014]
According to the high sound insulation composite wall of the present invention described above, excellent sound insulation performance as shown in Table 1 below can be obtained.
[0015]
[Table 1]

[0016]
Table 1 shows the results of sound transmission loss, which is the air sound blocking performance obtained by the test method of JIS A 1416. First, in the case of only a concrete wall having a surface density of 360 kg / m ² and a thickness of 150 mm as in the conventional case, the sound insulation performance corresponds to the air sound insulation performance evaluation line Rr-50 of JIS A1419. On the other hand, according to the high sound insulation composite wall shown in FIGS. 1 to 3, the effect of the air sound insulation performance of the air sound insulation performance evaluation line Rr-55 or more is exhibited, and this performance has an area density of 1200 kg / a performance equivalent to m ² concrete thickness 260 mm. Further, a non-combustible plate material made of a fiber-mixed gypsum plate (thickness 5 mm) is attached to the outside (indoor side) surface of the flat plate member of the ribbed panel, and non-combustible sound absorption of glass wool between the ribs on the inside surface. According to the structure according to the embodiment of the present invention shown in FIGS. 4 to 6 in contact with the material, sound transmission equivalent to the sound insulation performance Rr-65 corresponding to a concrete thickness of 1000 mm with an area density of 1200 kg / m ² is achieved. it is intended to achieve the sound insulating effect of the loss. In addition, a panel with ribs is installed only in one side chamber, and a non-combustible sound absorbing material of glass wool is laid between the ribs on the hollow layer side of the ribbed panel, that is, the inner side, and fibers are mixed on the outside (indoor side) surface of the panel with ribs Even with a structure in which a non-combustible plate material made of gypsum board (thickness 5 mm) is attached, the effect of air sound insulation performance of sound insulation performance Rr-55 or more is exhibited. Therefore, the composite wall structure of the present invention does not increase the thickness of the concrete wall which is a load-bearing wall necessary for the structure of the building or the concrete wall of the pre-cast concrete wall, and is conventional. The concrete wall without changing the thickness of the hollow layer, i.e. without reducing the living area, without causing a sound insulation defect in the low range due to the hollow layer between the concrete and the dry lightweight wall acting as an air spring. The sound insulation performance can be greatly improved, and a good sound insulation performance living space can be provided. Further, the composite wall of the present invention is not only excellent in finishability, but also can be easily remodeled into the composite wall of the present invention, so it is applied to an existing concrete boundary wall, The sound insulation performance can be greatly improved.
[0017]
The present invention described above is not limited to the above-described embodiment, and various modifications can be made. For example, the number and shape of the rib portions are not limited to the above embodiment. In addition , the rib portion and the face material portion are not limited to being manufactured by integral molding by extrusion molding, and individually provided face material portions and rib portions are provided over the entire surface of the rib portion or a predetermined region. You may manufacture integrally in the aspect which carries out surface adhesion by the adhesive agent.
[0018]
【The invention's effect】
As described above, according to the highly sound-insulating composite wall of the present invention, in the existing composite wall having a dry lightweight wall disposed on the concrete wall through a hollow layer having a thickness of 50 to 70 mm, lightweight wall, made of dry weight material, on the inside of a flat face plate portion and said surface material part a panel having a rib portion extending in at least one vertical, non-combustible on the outer surface of the face plate portion Since it consists of a panel with a non-combustible sound-absorbing material in contact with the inner surface of the plate, the sound insulation in the low frequency range due to the air spring effect that tends to occur in a hollow layer with a thickness of 50 to 70 mm a reduction in it is possible to provide a proof technique, the living space of a high standard with respect to the sound environment. That is, by providing the re blanking portion to the panel, to improve its rigidity without changing the weight of the surface material part, while improving the bass sound insulation performance, proper placement of the incombustible sheet material and incombustible sound absorbing material By doing so, a remarkably high sound insulation performance can be obtained. Note that the panel is movably fixed at one end of the rib portion, since not only is fixed to the building at the other end of the rib portion, less failure dry weight wall against displacement such as an earthquake, repairs It is possible to provide a living space with less need.
[Brief description of the drawings]
FIG. 1 is a perspective view of a highly sound-insulating composite wall as a reference example .
FIG. 2 is a cross-sectional view taken along line II-II in FIG.
3 is a cross-sectional view taken along line III-III in FIG.
FIG. 4 is a perspective view of a highly sound-insulating composite wall according to an embodiment of the present invention.
5 is a cross-sectional view taken along line VV in FIG.
6 is a cross-sectional view taken along line VI-VI in FIG.
FIG. 7 is a view showing a conventional boundary wall.
FIG. 8 is a view showing a conventional composite wall.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11, 31 ... High sound insulation composite wall, 12 ... Field wall, 13 ... Hollow layer, 14 ... Panel with rib (dry type wall), 14a ... Face material part, 14b ... Rib part, 20 ... Runner, 21 ... Cut groove, 33 ... incombustible plate material, 35 ... incombustible sound absorbing material.

Claims (2)

A concrete wall or a precast concrete wall that was cast in the field, which is a load-bearing wall of the building, and a hollow layer having a thickness of 50 to 70 mm disposed outside the wall. In high sound insulation composite wall with dry lightweight wall,
The dry weight wall, made of dry weight material, meet the panel has a rib portion extending in at least one vertical provided by integral molding or surface adhesion manner to the inside of the plate-like face plate portion and said surface material part In addition, a non-combustible plate material is affixed to the outer side surface of the face material portion, and a non-combustible sound absorbing material is disposed on the inner side surface of the panel. A highly sound-insulating composite wall characterized in that it is movably fixed at one end of the rib part and integrally fixed at the other end of the rib part with respect to the fixed part. One end of the rib portion of the panel is formed with a notch groove having a predetermined depth that extends in the width direction of the panel and inclines toward the boundary wall as the depth increases , and the panel is provided in the fixed portion of the building. 2. The highly sound-insulating composite wall according to claim 1, wherein a runner extending in the width direction of the dry wall is movably fixed in an extending direction of the cut groove by inserting the runner into the cut groove.

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