JP2019124042A - Wall structure - Google Patents

Wall structure Download PDF

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JP2019124042A
JP2019124042A JP2018005058A JP2018005058A JP2019124042A JP 2019124042 A JP2019124042 A JP 2019124042A JP 2018005058 A JP2018005058 A JP 2018005058A JP 2018005058 A JP2018005058 A JP 2018005058A JP 2019124042 A JP2019124042 A JP 2019124042A
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wall
clt
sound absorbing
layer
reflective layer
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JP7032146B2 (en
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直人 松岡
Naoto Matsuoka
直人 松岡
近藤　誠一
Seiichi Kondo
誠一 近藤
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Kumagai Gumi Co Ltd
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Abstract

To provide a wall structure that can improve sound insulation performance in a wall structure using CLT.SOLUTION: The wall structure of the present invention comprises a CLT wall formed by CLT, an additional wall arranged such that the CLT wall and the wall face each other, a reflective layer provided on one of the wall surfaces of the CLT wall and the additional wall facing each other, and a sound absorbing layer provided on the other wall surface of the CLT wall and the additional wall facing each other.SELECTED DRAWING: Figure 1

Description

本発明は、ＣＬＴ（Cross Laminated Timber（直交集成板））を使用した壁構造に関する。   The present invention relates to a wall structure using CLT (Cross Laminated Timber).

ＣＬＴを使用した壁を備えた住宅構造が知られている（特許文献１参照）。
また、大中規模の木造建築物において、ＣＬＴを使用した壁構造として、ＣＬＴにより形成されたＣＬＴ壁と、当該ＣＬＴ壁と壁面同士が対向するように配置された付加壁と備え、ＣＬＴ壁の壁面と付加壁の壁面との間にグラスウール等の吸音材を設置した構成の壁構造、あるいは、ＣＬＴにより形成された一方のＣＬＴ壁と、当該一方のＣＬＴ壁と壁面同士が対向するように配置された他方のＣＬＴ壁とを備え、一方のＣＬＴ壁の壁面と他方のＣＬＴ壁の壁面との間にグラスウール等の吸音材を設置した構成の壁構造が知られている（非特許文献１参照）。
尚、大中規模の木造建築物とは、軸組構造又は壁組構造で構築された学校、ホテル、集合住宅、老人ホーム、役所などの比較的大型の木造建築物のことである。 A housing structure provided with a wall using CLT is known (see Patent Document 1).
In a large medium-sized wooden building, as a wall structure using CLT, a CLT wall formed by CLT and an additional wall arranged so that the CLT wall and the wall face each other are provided. A wall structure in which a sound absorbing material such as glass wool is installed between a wall surface and a wall surface of the additional wall, or one CLT wall formed by CLT and the one CLT wall and the wall are disposed opposite to each other It is known to have a wall structure provided with a sound absorbing material such as glass wool provided between the wall surface of one CLT wall and the wall surface of the other CLT, provided with the other CLT wall. ).
Large and medium-sized wooden buildings are relatively large wooden buildings such as schools, hotels, apartments, nursing homes, and public offices constructed with a frame structure or a wall structure.

特開２０１７−５３１８７号公報JP 2017-53187 A

日本ＣＬＴ協会 技術報告会２０１７ 一般社団法人日本ＣＬＴ協会、２０１７年５月３０日、第３８頁。Japan CLT Association Technical Report 2017 The Japan CLT Association, p. 38, May 30, 2017.

従来のＣＬＴを使用した壁構造は、鉄筋コンクリートの壁構造と比べて遮音性能が低いという問題があった。
本発明は、ＣＬＴを使用した壁構造において、遮音性能を向上させることができる壁構造を提供するものである。 The wall structure using the conventional CLT has a problem that the sound insulation performance is lower than that of the reinforced concrete wall structure.
The present invention provides a wall structure capable of improving sound insulation performance in a wall structure using CLT.

本発明に係る壁構造は、ＣＬＴにより形成されたＣＬＴ壁と、当該ＣＬＴ壁と壁面同士が対向するように配置された付加壁と、互いに対向するＣＬＴ壁の壁面及び付加壁の壁面のうちの一方の壁面側に設けられた反射層と、互いに対向するＣＬＴ壁の壁面及び付加壁の壁面のうちの他方の壁面側に設けられた吸音層とを備えたことを特徴とする。
また、ＣＬＴにより形成された一方のＣＬＴ壁と、当該一方のＣＬＴ壁と壁面同士が対向するように配置された他方のＣＬＴ壁と、互いに対向する一方のＣＬＴ壁の壁面及び他方のＣＬＴ壁の壁面のうちの一方の壁面側に設けられた反射層と、互いに対向する一方のＣＬＴ壁の壁面及び他方のＣＬＴ壁の壁面のうちの他方の壁面側に設けられた吸音層とを備えたことを特徴とする。
当該壁構造によれば、音が反射層で反射して吸音層で吸音されるようになるので、ＣＬＴを使用した壁構造において、遮音効果の高い壁構造となる。
また、反射層と吸音層との間に空気層を備えたことを特徴とするので、吸音層での吸音効果がさらに高まる。
また、吸音層と対向する反射層の表面が凹凸部を備えたことを特徴とするので、反射層の表面で音が斜めに反射して吸音層に入射するので、反射した音が吸音層を通過する距離が長くなるため、吸音層での吸音効果をより一層高めることができる。
また、反射層は遮蔽性能を有した材料により形成されたので、遮音効果がさらに向上する。
さらに、ＣＬＴ壁は、ＣＬＴにより形成された複数のパネルの端面同士が所定の隙間を隔てて隣り合うように配置されたＣＬＴパネル壁と、複数のパネルの端面間の所定の隙間に充填された当該隙間の伸縮変形に追従して変形可能な遮音材とを備えて構成されたことを特徴とするので、ＣＬＴ壁自体の遮音効果が高まる。 The wall structure according to the present invention includes a CLT wall formed by CLT, an additional wall arranged such that the CLT wall and the wall face each other, and a wall of the CLT wall and the wall surface of the additional wall facing each other A reflecting layer provided on one wall surface side, and a sound absorbing layer provided on the other wall surface side of the wall surfaces of the CLT wall and the additional wall facing each other are provided.
In addition, one CLT wall formed by CLT, the other CLT wall disposed so that the one CLT wall and the wall face each other, the wall surface of one CLT wall and the other CLT wall facing each other A reflecting layer provided on one of the wall surfaces and a sound absorbing layer provided on the other of the CLT wall surfaces facing each other and the other CLT wall surface. It is characterized by
According to the wall structure, the sound is reflected by the reflection layer and absorbed by the sound absorption layer, so the wall structure using CLT has a wall structure with high sound insulation effect.
Further, since the air layer is provided between the reflective layer and the sound absorbing layer, the sound absorbing effect of the sound absorbing layer is further enhanced.
In addition, since the surface of the reflective layer facing the sound absorbing layer is provided with the uneven portion, the sound is obliquely reflected on the surface of the reflective layer and is incident on the sound absorbing layer. Since the passing distance is increased, the sound absorbing effect of the sound absorbing layer can be further enhanced.
In addition, since the reflective layer is formed of a material having a shielding performance, the sound insulation effect is further improved.
Furthermore, the CLT wall is filled in a predetermined gap between the CLT panel wall disposed such that the end faces of the plurality of panels formed by CLT are adjacent to each other with a predetermined gap, and a predetermined gap between the end faces of the plurality of panels Since it is characterized by being provided with a sound insulating material which can be deformed following the expansion and contraction of the gap, the sound insulating effect of the CLT wall itself is enhanced.

実施形態１の壁構造の一例を示す断面図。Sectional drawing which shows an example of the wall structure of Embodiment 1. FIG. 実施形態１の壁構造の一例を示す断面図。Sectional drawing which shows an example of the wall structure of Embodiment 1. FIG. 実施形態１の壁構造の一例を示す断面図。Sectional drawing which shows an example of the wall structure of Embodiment 1. FIG. 実施形態１の壁構造を形成するＣＬＴ壁の互いに隣り合うＣＬＴパネルとＣＬＴパネルの端面間の構造を示す図。FIG. 2 is a view showing a structure between adjacent CLT panels of the CLT wall forming the wall structure of Embodiment 1 and the end face of the CLT panel. 実施形態２の壁構造の一例を示す断面図。Sectional drawing which shows an example of the wall structure of Embodiment 2. FIG.

実施形態１
実施形態１に係る壁構造としては、ＣＬＴにより形成されたＣＬＴ壁と付加壁とを備えてＣＬＴ壁と付加壁との間に、吸音層、反射層、空気層を備えて構成されたＡタイプの壁構造と、一方のＣＬＴ壁と他方のＣＬＴ壁とを備えて一方のＣＬＴ壁の壁面と他方のＣＬＴ壁の壁面との間に、吸音層、反射層、空気層を備えて構成されたＢタイプの壁構造とがある。 Embodiment 1
The wall structure according to the first embodiment includes a CLT wall formed by CLT and an additional wall, and is an A type configured to include a sound absorbing layer, a reflective layer, and an air layer between the CLT wall and the additional wall. Wall structure, and one CLT wall and the other CLT wall, the sound absorbing layer, the reflection layer, and the air layer are configured between the wall surface of the one CLT wall and the wall surface of the other CLT wall There is a B-type wall structure.

Ａタイプの壁構造は、図１，図３に示すように、ＣＬＴ壁１と、当該ＣＬＴ壁１と壁面１ａ，２ａ同士が対向するように配置された付加壁２と、ＣＬＴ壁１の壁面１ａに設けられた反射層３と、当該反射層３と付加壁２の壁面２ａとの間に設けられた吸音層４とを備え、反射層３と吸音層４との間に空気層５を備えた構成である。
Ａタイプの壁構造としては、図１に示すように、ＣＬＴ壁１の一方の壁面１ａと付加壁２の壁面（裏壁面、即ち、後述する壁下地板２１の裏面）２ａとが対向し、ＣＬＴ壁１の他方の壁面１ｂが露出した現し壁と呼ばれる状態となっている壁構造と、図３に示すように、ＣＬＴ壁１の一方の壁面１ａと一方の付加壁２Ａの壁面（裏壁面）２ａとが対向するとともに、ＣＬＴ壁１の他方の壁面１ｂと他方の付加壁２Ｂの壁面（裏壁面）２ａとが対向した状態となっている壁構造とがある。 As shown in FIGS. 1 and 3, the A-type wall structure includes a CLT wall 1, an additional wall 2 disposed so that the CLT wall 1 and the wall surfaces 1a and 2a face each other, and a wall surface of the CLT wall 1 1a and a sound absorbing layer 4 provided between the reflecting layer 3 and the wall surface 2a of the additional wall 2, and an air layer 5 is provided between the reflecting layer 3 and the sound absorbing layer 4 It is the composition provided.
As the A-type wall structure, as shown in FIG. 1, one wall surface 1a of the CLT wall 1 and the wall surface of the additional wall 2 (back wall surface, ie, the back surface of the wall base plate 21 described later) 2a face each other A wall structure in a state called "represented wall" in which the other wall surface 1b of CLT wall 1 is exposed and, as shown in Fig. 3, the wall surface of one wall 1a of CLT wall 1 and the wall surface of one additional wall 2A There is a wall structure in which the other wall surface 1b of the CLT wall 1 and the wall surface (back wall surface) 2a of the other additional wall 2B of the CLT wall 1 are opposed.

また、Ｂタイプの壁構造は、一方のＣＬＴ壁と、当該一方のＣＬＴ壁と壁面同士が対向するように配置された他方のＣＬＴ壁と、互いに対向する一方のＣＬＴ壁の壁面及び他方のＣＬＴ壁の壁面のうちの一方の壁面側に設けられた反射層と、互いに対向する一方のＣＬＴ壁の壁面及び他方のＣＬＴ壁の壁面のうちの他方の壁面側に設けられた吸音層とを備え、反射層と吸音層との間に空気層を備えた構成である。
具体的には、図２に示すように、一方のＣＬＴ壁１Ａと、当該一方のＣＬＴ壁１Ａと壁面１ａ，１ａ同士が対向するように配置された他方のＣＬＴ壁１Ｂと、一方のＣＬＴ壁１Ａの壁面１ａに設けられた反射層３と、当該反射層３と他方のＣＬＴ壁１Ｂの壁面１ａとの間に設けられた吸音層４とを備え、反射層３と吸音層４との間に空気層５を備えた構成である。 In the B-type wall structure, one CLT wall, the other CLT wall disposed so that the one CLT wall and the wall face each other, the wall surface of the one CLT wall facing each other, and the other CLT It has a reflective layer provided on one of the wall surfaces of the walls and a sound absorbing layer provided on the other of the CLT wall surfaces facing each other and the other CLT wall surface. , And an air layer between the reflective layer and the sound absorbing layer.
Specifically, as shown in FIG. 2, one CLT wall 1A, the other CLT wall 1B disposed so that the one CLT wall 1A and the wall surfaces 1a and 1a face each other, and one CLT wall Between the reflective layer 3 and the sound absorbing layer 4, the reflective layer 3 provided on the wall surface 1 a of 1 A and the sound absorbing layer 4 provided between the reflective layer 3 and the wall surface 1 a of the other CLT wall 1 B And the air layer 5 is provided.

尚、ＣＬＴとは、農林水産省告示第３０７９号に規定されたように、「ひき板又は小角材（これらをその繊維方向を互いにほぼ平行にして長さ方向に接合接着して調整したものを含む。）をその繊維方向を互いにほぼ平行にして幅方向に並べ又は接着したものを、主としてその繊維方向を互いにほぼ直角にして積層接着し３層以上の構造を持たせた一般材」である。
即ち、ＣＬＴは、張り合わせる板の繊維方向が直交するように複数の板を張り合わせて構成された木材であり、直交集成板と呼ばれている。 In addition, as defined in Ministry of Agriculture, Forestry and Fisheries Notification No. 3079, “CLT” refers to “punch board or small angle lumber (these are prepared by bonding and bonding them in the longitudinal direction with their fiber directions almost parallel to each other). A general material in which the fiber directions are almost parallel to each other and aligned or bonded in the width direction, and the fiber directions are mainly orthogonal to each other and laminated and bonded to have a structure of three or more layers. .
That is, CLT is a wood constructed by laminating a plurality of boards so that the fiber directions of the boards to be laminated are orthogonal to each other, and it is called a cross laminated board.

ＣＬＴ壁１，１Ａ，１Ｂは、図４に示すように、ＣＬＴにより形成された複数のＣＬＴパネル１Ｐ，１Ｐの端面１ｓ，１ｓ同士が所定の隙間を隔てて隣り合うように配置されたＣＬＴパネル壁１Ｘと、隣り合うＣＬＴパネル１Ｐ，１Ｐの端面１ｓ，１ｓ間の所定の隙間に充填された当該隙間の伸縮変形に追従して変形可能な遮音材６とを備えて構成される。
ＣＬＴパネル１Ｐは、例えば厚さ寸法９０ｍｍ〜１５０ｍｍ程度（ラミナ３層〜５層の厚さ寸法に相当）、縦寸法１０ｍ〜１２ｍ程度、横寸法３ｍ〜４ｍ程度に形成されたパネルである。 The CLT walls 1, 1A and 1B are, as shown in FIG. 4, a CLT panel in which end faces 1s and 1s of a plurality of CLT panels 1P and 1P formed by CLT are adjacent to each other with a predetermined gap therebetween. A wall 1X is provided with a sound insulating material 6 which can be deformed following the expansion and contraction of the gap filled in a predetermined gap between the end faces 1s and 1s of the adjacent CLT panels 1P and 1P.
The CLT panel 1P is a panel formed to have, for example, a thickness dimension of about 90 mm to 150 mm (corresponding to a thickness dimension of three to five lamina layers), a longitudinal dimension of about 10 m to 12 m, and a transverse dimension of about 3 m to 4 m.

互いに隣り合うＣＬＴパネル１Ｐの端面１ｓとＣＬＴパネル１Ｐの端面１ｓとの間の隙間は、湿度変化に伴う伸縮や施工性を考慮して、例えば、２ｍｍ程度とする。
実施形態１によれば、当該隙間に設けられる、当該隙間の伸縮変形に追従して変形可能な遮音材６として、例えば、ゴム、シリコン系シーリング材、セルロースナノファイバー等を使用した。従って、この遮音材６が設けられた隙間の上に、反射層３を設けることで、ＣＬＴ壁１，１Ａ，１Ｂ自体の遮音効果が高まる。 The clearance between the end face 1s of the CLT panel 1P and the end face 1s of the CLT panel 1P adjacent to each other is, for example, about 2 mm in consideration of expansion and contraction due to a change in humidity and workability.
According to the first embodiment, for example, rubber, a silicon-based sealing material, cellulose nanofibers, or the like is used as the sound insulating material 6 provided in the gap and capable of deforming following the expansion and contraction of the gap. Therefore, by providing the reflective layer 3 above the gap provided with the sound insulation 6, the sound insulation effect of the CLT walls 1, 1A, 1B itself is enhanced.

付加壁２は、例えば、床側に固定された断面凹状の長尺な図外の床側ランナーと、天井側に固定された断面凹状の長尺な図外の天井側ランナーと、これらの床側ランナーと天井側ランナーとの間に横方向に所定の間隔を隔てて立設されて壁の下地を形成する図外の複数のスタッドと、複数のスタッドに取付けられた石こうボード等の壁下地板２１と、壁下地板２１の表面２２に設けられた図外の壁仕上げ材とで構成される。当該壁仕上げ材は、例えば、化粧板、クロス等のシート、塗料等である。   The additional wall 2 includes, for example, an elongated floor-side runner having a concave cross-section fixed to the floor side, and a ceiling-side runner having a concave cross-section having a concave cross-section fixed to the ceiling, and these floors A plurality of studs (not shown) erected at a predetermined distance between the side runners and the ceiling side runners to form the ground of the wall, and under walls such as gypsum boards attached to the plurality of studs. It is comprised by the baseplate 21 and the wall-finishing material out of the figure provided in the surface 22 of the wall baseplate 21. FIG. The said wall finish material is sheets, such as a decorative board, a cloth | cross, etc., a coating material etc., for example.

反射層３は、遮蔽性能を有した材料により形成されることが好ましい。例えば、反射層３は、アスファルト系シート、アルミ箔をＣＬＴ壁１，１Ａ，１Ｂの壁面１ａ，１ｂに貼り付けたり、あるいは、反射遮蔽機能を有した塗料をＣＬＴ壁１，１Ａ，１Ｂの壁面１ａ，１ｂに塗装することにより形成される。   The reflective layer 3 is preferably formed of a material having a shielding performance. For example, the reflective layer 3 may be an asphalt-based sheet, an aluminum foil attached to the wall surfaces 1a and 1b of the CLT walls 1A and 1B, or a paint having a reflective shielding function may be a wall surface of the CLT walls 1A and 1B. It is formed by painting on 1a and 1b.

吸音層４は、例えば反射層３と対向する付加壁２の壁面（裏壁面）２ａ側に、グラスウール、ロックウール等の吸音材を設置することにより形成される。
即ち、Ａタイプの壁構造の場合、複数のスタッド及び壁下地板２１の裏面を覆うように吸音材をスタッド等に取付けて設置することにより、吸音層４が形成される。
また、Ｂタイプの壁構造の場合、例えば他方のＣＬＴ壁１Ｂの壁面１ａに吸音材を取付けて設置することにより、吸音層４が形成される。
吸音層４の厚さは、例えば、５０ｍｍ程度とする。 The sound absorbing layer 4 is formed, for example, by installing a sound absorbing material such as glass wool or rock wool on the wall surface (back wall surface) 2 a side of the additional wall 2 facing the reflective layer 3.
That is, in the case of the A-type wall structure, the sound absorbing layer 4 is formed by attaching a sound absorbing material to studs or the like so as to cover the plurality of studs and the back surface of the wall base plate 21.
Further, in the case of the B-type wall structure, the sound absorbing layer 4 is formed, for example, by attaching and installing a sound absorbing material on the wall surface 1a of the other CLT wall 1B.
The thickness of the sound absorbing layer 4 is, for example, about 50 mm.

反射層３と吸音層４との間に設定される空気層５の厚さは、例えば、５ｍｍ〜５０ｍｍ程度とする。   The thickness of the air layer 5 set between the reflective layer 3 and the sound absorbing layer 4 is, for example, about 5 mm to 50 mm.

実施形態１に係る壁構造によれば、反射層３を備えたので、音が反射層３で反射して吸音層４で吸音されるようになるので、ＣＬＴを使用した壁構造において、遮音効果の高い壁構造を提供できる。
また、反射層３を、遮音性能を有した材料により形成したので、吸音層４での吸音効果がより高まる。
さらに、反射層３と吸音層４との間に空気層５を備えたので、吸音層４での吸音効果がさらに高まる。 According to the wall structure of the first embodiment, since the reflection layer 3 is provided, the sound is reflected by the reflection layer 3 and absorbed by the sound absorption layer 4, so that the sound insulation effect is achieved in the wall structure using CLT. Can provide a high wall structure.
Further, since the reflective layer 3 is formed of a material having sound insulation performance, the sound absorbing effect of the sound absorbing layer 4 is further enhanced.
Furthermore, since the air layer 5 is provided between the reflective layer 3 and the sound absorbing layer 4, the sound absorbing effect of the sound absorbing layer 4 is further enhanced.

実施形態２
図５に示すように、吸音層４と対向する反射層３の表面３１が例えば波形等のような凹凸部を備えた構成とすることにより、反射層３の表面３１で音が矢印ａに示すように斜めに反射して吸音層４に入射するので、反射した音が吸音層４を通過する距離Ｌが長くなるため、吸音層４での吸音効果をより一層高めることができる。 Embodiment 2
As shown in FIG. 5, when the surface 31 of the reflective layer 3 facing the sound absorbing layer 4 is provided with a concavo-convex portion such as a waveform, for example, sound is shown by the arrow a on the surface 31 of the reflective layer 3. As described above, since the light is reflected obliquely and is incident on the sound absorbing layer 4, the distance L for the reflected sound to pass through the sound absorbing layer 4 becomes long, so the sound absorbing effect in the sound absorbing layer 4 can be further enhanced.

尚、上記では、反射層３と吸音層４との間に空気層５を設けた構成としたが、反射層３と吸音層４との間に空気層５を備えない構成としてもよい。この場合でも、音が反射層３で反射して吸音層４で吸音されるので、ＣＬＴを使用した壁構造において、従来の反射層を備えない壁構造と比べた場合、遮音効果の高い壁構造を提供できるようになる。   Although the air layer 5 is provided between the reflective layer 3 and the sound absorbing layer 4 in the above description, the air layer 5 may not be provided between the reflective layer 3 and the sound absorbing layer 4. Even in this case, since the sound is reflected by the reflection layer 3 and absorbed by the sound absorption layer 4, the wall structure using CLT has a wall structure with high sound insulation when compared to the wall structure without the conventional reflection layer. Will be able to provide

尚、上記では、ＣＬＴ壁と、当該ＣＬＴ壁と壁面同士が対向するように配置された付加壁と、ＣＬＴ壁の壁面に設けられた反射層と、当該反射層と付加壁の壁面との間に設けられた吸音層とを備えたＡタイプの壁構造を例示したが、本願発明では、Ａタイプの壁構造として、付加壁の壁面側（即ち、石こうボード等の壁下地板の裏面側）に反射層を設け、ＣＬＴ壁の壁面側に吸音層を設けるようにした構成としてもよい。
即ち、ＣＬＴ壁と、当該ＣＬＴ壁と壁面同士が対向するように配置された付加壁と、互いに対向するＣＬＴ壁の壁面及び付加壁の壁面のうちの一方の壁面側に設けられた反射層と、互いに対向するＣＬＴ壁の壁面及び付加壁の壁面のうちの他方の壁面側に設けられた吸音層とを備えた壁構造としてもよい。 In the above, the CLT wall, the additional wall disposed so that the CLT wall and the wall face each other, the reflective layer provided on the wall surface of the CLT wall, and the wall between the reflective layer and the additional wall In the present invention, the wall side of the additional wall (ie, the back side of the wall base plate such as gypsum board) is exemplified as the A-type wall structure. It is good also as composition provided with a reflection layer in, and providing a sound absorption layer in the wall side of a CLT wall.
That is, a CLT wall, an additional wall arranged such that the CLT wall and the wall face each other, and a reflective layer provided on one of the wall surfaces of the CLT wall and the additional wall facing each other A wall structure may be provided that includes a sound absorbing layer provided on the other wall side of the wall surface of the CLT wall and the wall surface of the additional wall facing each other.

１，１Ａ，１Ｂ ＣＬＴ壁、１ａ,１ｂ ＣＬＴ壁の壁面、２，２Ａ，２Ｂ 付加壁、
２ａ 付加壁の壁面、３ 反射層、４ 吸音層、５ 空気層、６ 遮音材、
３１ 反射層の表面。 1,1A, 1B CLT wall, 1a, 1b CLT wall wall, 2,2A, 2B additional wall,
2a Wall of additional wall, 3 reflective layers, 4 sound absorbing layers, 5 air layers, 6 sound insulation materials,
31 Surface of reflective layer.

Claims (6)

ＣＬＴにより形成されたＣＬＴ壁と、当該ＣＬＴ壁と壁面同士が対向するように配置された付加壁と、互いに対向するＣＬＴ壁の壁面及び付加壁の壁面のうちの一方の壁面側に設けられた反射層と、互いに対向するＣＬＴ壁の壁面及び付加壁の壁面のうちの他方の壁面側に設けられた吸音層とを備えたことを特徴とする壁構造。   A CLT wall formed by CLT, an additional wall arranged such that the CLT wall and the wall face each other, and a wall surface of the CLT wall and the wall face of the additional wall facing each other A wall structure comprising a reflective layer, and a sound absorbing layer provided on the other of the CLT wall wall and the other wall surface of the additional wall facing each other. ＣＬＴにより形成された一方のＣＬＴ壁と、当該一方のＣＬＴ壁と壁面同士が対向するように配置された他方のＣＬＴ壁と、互いに対向する一方のＣＬＴ壁の壁面及び他方のＣＬＴ壁の壁面のうちの一方の壁面側に設けられた反射層と、互いに対向する一方のＣＬＴ壁の壁面及び他方のＣＬＴ壁の壁面のうちの他方の壁面側に設けられた吸音層とを備えたことを特徴とする壁構造。   Of one CLT wall formed by CLT, the other CLT wall disposed so that the one CLT wall and the wall face each other, the wall surface of one CLT wall and the wall surface of the other CLT wall facing each other A reflective layer provided on one of the wall surfaces, and a sound absorbing layer provided on the other of the wall surfaces of one CLT wall and the other CLT wall facing each other are provided. Wall structure to be. 反射層と吸音層との間に空気層を備えたことを特徴とする請求項１又は請求項２に記載の壁構造。   The wall structure according to claim 1 or 2, further comprising an air layer between the reflective layer and the sound absorbing layer. 吸音層と対向する反射層の表面が凹凸部を備えたことを特徴とする請求項１乃至請求項３のいずれか一項に記載の壁構造。   The wall structure according to any one of claims 1 to 3, wherein the surface of the reflective layer facing the sound absorbing layer has an uneven portion. 反射層は遮蔽性能を有した材料により形成されたことを特徴とする請求項１乃至請求項４のいずれか一項に記載の壁構造。   The wall structure according to any one of claims 1 to 4, wherein the reflective layer is formed of a material having a shielding performance. ＣＬＴ壁は、ＣＬＴにより形成された複数のパネルの端面同士が所定の隙間を隔てて隣り合うように配置されたＣＬＴパネル壁と、複数のパネルの端面間の所定の隙間に充填された当該隙間の伸縮変形に追従して変形可能な遮音材とを備えて構成されたことを特徴とする請求項１乃至請求項５のいずれか一項に記載の壁構造。   The CLT wall is a CLT panel wall arranged such that the end faces of a plurality of panels formed by CLT are adjacent to each other with a predetermined gap, and the gap filled in a predetermined gap between the end surfaces of the plurality of panels The wall structure according to any one of claims 1 to 5, wherein the wall structure comprises a sound insulating material that can be deformed following the expansion and contraction of the wall.
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JP2017053187A (en) * 2015-09-11 2017-03-16 積水ハウス株式会社 Housing structure

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JPS49103219U (en) * 1972-12-25 1974-09-05
JPS49107138U (en) * 1972-12-29 1974-09-12
JPH10131355A (en) * 1996-10-31 1998-05-19 Mitsubishi Chem Corp Structural panel
JP2001003482A (en) * 1999-06-25 2001-01-09 Fujita Corp Hollow double sound insulation wall structure
JP2001034825A (en) * 1999-07-19 2001-02-09 Fuji Electric Co Ltd Vending machine room cover
JP2001262730A (en) * 2000-03-14 2001-09-26 Nichias Corp Sound insulation wall structure
JP2003247289A (en) * 2002-02-25 2003-09-05 Daiken Trade & Ind Co Ltd Renovation method of wooden house and wall renovation structure constructed by the method
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