JP6622489B2 - Double floor sound insulation structure, double floor sound insulation construction method - Google Patents
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Description
本発明は、二重床の遮音構造及びこの施工法に関し、さらに詳しくは、竪配管からの放射音を簡易な施工及び仕様で遮断する二重床の遮音構造及びこの施工法に関するものである。 The present invention relates to a sound insulation structure for a double floor and a construction method thereof, and more particularly to a sound insulation structure for a double floor and a construction method for shielding a radiated sound from a vertical pipe with simple construction and specifications.
従来から、例えば集合住宅では、床スラブ上に立てた支持材の上に床パネルをのせて仕上げる二重床構造が採用されていた。二重床構造では、床スラブと床パネルとの間の空間に、給排水管・ガス管・電気配線などの設備配管が施されていた。そのため、設備配管のメンテナンスのみならず、間取り変更がし易かった。そして、各居室の施工では、床の収縮や施工のし易さを考慮し、居室の区画壁より床パネルを優先的に敷設する床勝ち（床先行）工法が一般的であった。 Conventionally, for example, in an apartment house, a double floor structure in which a floor panel is placed on a support material standing on a floor slab and finished has been adopted. In the double-floor structure, equipment piping such as water supply and drainage pipes, gas pipes, and electrical wiring was provided in the space between the floor slab and the floor panel. For this reason, it was easy to change the floor plan as well as the maintenance of the equipment piping. And in the construction of each living room, in consideration of the contraction of the floor and the ease of construction, the floor winning (floor leading) method of laying the floor panel preferentially over the partition wall of the living room has been common.
一方、集合住宅には、水・ガス・電気を各居室に供給する竪配管が、隣接する居室同士で形成された空間（パイプスペース）に配置されていた。このため、上下動する給排水による管壁からの放射音が騒音とならないよう、パイプスペースと居室とを石膏ボードで区画する対処をしていた。しかしながら、この対処は床先行工法には適さず、床勝ちの納まりが困難であった。 On the other hand, in the housing complex, dredging pipes that supply water, gas, and electricity to each room are arranged in a space (pipe space) formed between adjacent rooms. For this reason, measures have been taken to partition the pipe space and the living room with a plasterboard so that the radiated sound from the pipe wall due to the water supply and drainage moving up and down does not become noise. However, this countermeasure was not suitable for the floor advance method, and it was difficult to settle the floor.
そこで、床スラブと床パネルとの間に立設して配置したパーティクルボードの下端面と床スラブとの間にロックフェルトのようなクッション材を敷設してパイプスペースを囲む二重床の構造（例えば特許文献１参照。）が提案されている。これにより、パーティクルボード及びロックフェルトが竪配管からの放射音を床下空間に漏れるのを防止する役割を果たすことができるものである。 Therefore, a double floor structure that surrounds the pipe space by laying a cushioning material such as rock felt between the bottom slab of the particle board placed between the floor slab and the floor panel and the floor slab ( For example, see Patent Document 1). Thereby, the particle board and the rock felt can play a role of preventing the radiated sound from the culvert pipe from leaking into the underfloor space.
しかしながら、上述した従来における二重床の構造では、施工の手間がかかり、実現性に乏しい。すなわち、床スラブ及び床パネルの間隔に合わせてパーティクルボードのみならずロックフェルトを加工しなければならない。パーティクルボードは剛性が高いため、たとえロックフェルトを挟んだとしても、予定寸法の範囲外だと床スラブと床パネルとの間に入らなかったり隙間が空いてしまったりするからである。さらに、床スラブに対してパーティクルボードを垂直に留め付けなければならない。パーティクルボードが斜めに傾いていると、床パネルからの振動によりずれて倒れてしまう恐れがあるからである。このように、従来における二重床の構造では、施工者の高い技量が求められていた。 However, the conventional double-floor structure described above requires a lot of work and is not feasible. That is, not only the particle board but also the rock felt must be processed according to the distance between the floor slab and the floor panel. This is because the particle board has high rigidity, and even if the rock felt is sandwiched, if it is outside the range of the planned dimensions, it will not enter between the floor slab and the floor panel, or there will be a gap. In addition, the particle board must be fastened to the floor slab. This is because if the particle board is tilted, the particle board may be displaced due to vibration from the floor panel and fall down. As described above, in the conventional double floor structure, a high level of workmanship is required.
集合住宅の施工においては、床先行工法の優先順位を高くするのが好ましく、竪配管からの放射音対策が複雑な構造だと、施工者に過度な負担が生じる恐れがある。すなわち、放射音の障壁となる素材の加工に手間がかからないこと、上記素材の設置が容易なこと、耐久性を有しメンテナンスが極力不要なことが求められている。 In the construction of apartment houses, it is preferable to raise the priority of the floor prior construction method, and if the countermeasures against radiated sound from the culvert pipes are complicated, there is a risk that an excessive burden will be placed on the installer. In other words, it is required that processing of a material that becomes a barrier to radiated sound does not take time, that the material is easy to install, and that it has durability and requires minimal maintenance.
そこで、本発明の目的は、施工及びメンテナンスの手間がかからず、パイプスペースに配置された竪配管からの放射音を効果的に遮断する二重床の遮音構造及びこの施工法を提供することにある。 Therefore, an object of the present invention is to provide a double-floor sound insulation structure that effectively cuts off the radiated sound from the vertical pipe arranged in the pipe space, and the construction method thereof, which does not require labor for construction and maintenance. It is in.
上記課題を解決するために、本発明による二重床の遮音構造の特徴は、上部床を境にして竪配管に隣接する区画壁の下方に繊維系吸音材が配置されたことである。 In order to solve the above problems, the sound insulation structure of the double floor according to the present invention is characterized in that a fiber-based sound absorbing material is disposed below the partition wall adjacent to the culvert pipe with the upper floor as a boundary.
すなわち、本発明による二重床の遮音構造は、居室の下部床上に複数配置された床支持部材で上部床を支持する二重床であって、上記下部床及び上記上部床を貫通する竪配管に隣接し、上記上部床上に配置された区画壁の上記上部床を境にして下方に繊維系吸音材が配置してあり、上記繊維系吸音材の上下端面が上記上部床の裏面及び上記下部床の表面に密接している。 That is, the sound insulation structure of the double floor according to the present invention is a double floor that supports the upper floor with a plurality of floor support members arranged on the lower floor of the living room, and the vertical pipe penetrating the lower floor and the upper floor The fiber-based sound absorbing material is disposed below the upper floor of the partition wall disposed on the upper floor, and the upper and lower end surfaces of the fiber-based sound absorbing material are the back surface of the upper floor and the lower portion. Close to the floor surface.
また、上記床支持部材が上記上部床を境にして上記区画壁の下方より上記居室の内側寄りに位置し、上記繊維系吸音材が上記床支持部材より上記竪配管側に位置することが望ましい。 In addition, it is desirable that the floor support member is located closer to the inside of the living room than below the partition wall with the upper floor as a boundary, and the fiber-based sound absorbing material is located on the side of the vertical pipe from the floor support member. .
また、上記二重床は床先行工法で施工されたものであることが望ましい。 In addition, the double floor is preferably constructed by a floor advance construction method.
さらに、本発明による二重床の遮音構造の施工法は、床先行工法により居室の下部床上に複数配置してある床支持部材で上部床を支持し、上記上部床上に配置される上記居室の区画壁の上記上部床を境にして、上記区画壁の下方より上記居室の内側寄りに上記床支持部材を配置し、その後、上記上部床及び上記下部床の間隔より長い縦寸法で加工した繊維系吸音材を、上記床支持部材より上記区画壁に隣接する竪配管側に縦方向に圧縮して上記上部床と上記下部床との間に収納し、その後、復元により上記繊維系吸音材の上下端面を上記上部床の裏面及び上記下部床の表面に密接させつつ、上記繊維系吸音材を上記床支持部材の側部分に接する位置まで押し込む。 Furthermore, the construction method of the sound insulation structure of the double floor according to the present invention is to support the upper floor with a plurality of floor support members arranged on the lower floor of the living room by the floor prior construction method, and to Fibers that are processed with a vertical dimension longer than the interval between the upper floor and the lower floor , with the floor support member being disposed closer to the inside of the living room from below the partition wall, with the upper floor of the partition wall as a boundary The system sound-absorbing material is compressed in the vertical direction from the floor support member to the side of the vertical pipe adjacent to the partition wall and stored between the upper floor and the lower floor, and then restored to restore the fiber-based sound absorbing material. While the upper and lower end surfaces are brought into close contact with the back surface of the upper floor and the surface of the lower floor , the fiber-based sound absorbing material is pushed into a position in contact with the side portion of the floor support member.
ここで、「居室」とは、例えば集合住宅における区分所有物件が該当する。「繊維系吸音材」とは、加工容易性、伸縮性及び遮音性のある素材を意味し、例えばグラスウールやロックウールが該当する。 Here, the “living room” corresponds to, for example, a sectioned property in an apartment house. “Fiber-based sound-absorbing material” means a material with ease of processing, stretchability and sound insulation, such as glass wool or rock wool.
本発明による二重床の遮音構造は、上部床上に配置される区画壁の上記上部床を境にして下方に位置する繊維系吸音材を有し、上記繊維系吸音材の上下端面が上記上部床の裏面及び前記下部床の表面に密接していることにより、上記繊維系吸音材が竪配管からの放射音の拡散を防ぐ障壁となるため、二重床の空間を経由して居室内に騒音が届くのを防止することができる。さらに、二重床の基本構造を活用できる上、上記繊維系吸音材の加工が容易なため、施工者に高い技量が無くとも床下に遮音構造を構築する施工時間を短縮することができる。また、上記繊維系吸音材は区画壁の下方に位置するため、居室内で発生する床衝撃音の伝播を回避することができる。 The sound insulation structure of the double floor according to the present invention has a fiber-based sound absorbing material positioned below the upper floor of the partition wall arranged on the upper floor, and the upper and lower end surfaces of the fiber-based sound absorbing material are the upper portion. Since the fiber-based sound absorbing material serves as a barrier that prevents diffusion of radiated sound from the culvert pipe by being in close contact with the back surface of the floor and the surface of the lower floor, Noise can be prevented from reaching. Furthermore, since the basic structure of the double floor can be utilized and the fiber-based sound absorbing material can be easily processed, the construction time for constructing the sound insulation structure under the floor can be shortened even if the installer does not have high skill. Moreover, since the said fiber type sound-absorbing material is located below the partition wall, propagation of the floor impact sound generated in the living room can be avoided.
また、上記床支持部材が上記上部床を境にして上記区画壁の下方より上記居室の内側寄りに位置し、上記繊維系吸音材が上記床支持部材より上記竪配管側に位置することにより、上記二重床の施工後も上記繊維系吸音材を目視することができる。すなわち、繊維系吸音材が二重床に対して外側寄りに位置するため、配置後の状態を確認し易く、転倒や位置ずれを容易に修繕することができる。また、繊維系吸音材が床支持部材に近接しているため、繊維系吸音材が二重床の内側方向に転倒するのを防止することができる。 In addition, the floor support member is located closer to the inside of the living room than the lower part of the partition wall with the upper floor as a boundary, and the fiber-based sound absorbing material is located on the side of the vertical pipe from the floor support member, The fiber-based sound absorbing material can be visually observed even after the construction of the double floor. That is, since the fiber-based sound absorbing material is located on the outer side with respect to the double floor, it is easy to confirm the state after the arrangement, and it is possible to easily repair the overturn and the positional deviation. Moreover, since the fiber-based sound absorbing material is close to the floor support member, the fiber-based sound absorbing material can be prevented from falling in the inner direction of the double floor.
さらに、上記二重床は床先行工法で施工されたものであり、上述した二重床の遮音構造の実現により、従前は部分的に必要とされていた壁先行工法が不要となり、施工時間をさらに短縮することができる。 Furthermore, the double floor is constructed by the floor prior construction method, and the realization of the sound insulation structure of the double floor described above eliminates the need for the wall prior construction method, which was partially required before, and reduces the construction time. Further shortening is possible.
以下、図１〜２を参照しつつ、本発明による二重床の遮音構造の基本構造を説明する。図１は、竪配管と居室の区画壁及び二重床との関係の概念的に示している。図２は、図１のＡ−Ａ端面を示している。なお、図中の竪配管及び区画壁は想像線（二重鎖線）で示してある。 Hereinafter, the basic structure of the sound insulation structure of a double floor according to the present invention will be described with reference to FIGS. FIG. 1 conceptually shows the relationship between the dredging pipe, the partition wall of the living room, and the double floor. FIG. 2 shows the AA end face of FIG. In addition, the dredging pipe and the partition wall in the figure are shown by an imaginary line (double chain line).
図１に示すとおり、一実施形態における二重床の遮音構造は、床先行工法で施工され、居室Ｒの下部床１上に複数配置された床支持部材３で上部床２を支持する二重床であって、この下部床及び上部床を貫通する竪配管Ｐに隣接し、この上部床上に配置された区画壁Ｗのこの上部床を境にして下方に繊維系吸音材４が配置してあり、この繊維系吸音材の上下端面４１及び４２が上部床裏面２２及び下部床表面１１に密接している。
As shown in FIG. 1, the sound insulation structure of a double floor in one embodiment is constructed by a floor prior construction method, and a double floor that supports the upper floor 2 by a plurality of floor support members 3 arranged on the lower floor 1 of the living room R. A fiber-based sound absorbing material 4 is disposed below the upper floor of the partition wall W adjacent to the vertical pipe P passing through the lower floor and the upper floor, and the upper wall of the partition wall W disposed on the upper floor. The upper and
床支持部材３が上部床１を境にして区画壁Ｗの下方より居室Ｒの内側寄りに位置し、繊維系吸音材４がこの床支持部材より竪配管Ｐ側に位置してもよい。 The floor support member 3 may be positioned closer to the inside of the living room R from below the partition wall W with the upper floor 1 as a boundary, and the fiber-based sound absorbing material 4 may be positioned closer to the side pipe P than the floor support member.
次に、上述した二重床の遮音構造を構成する各部材について、図１及び２を参照しつつ説明する。
なお、一般的には、集合住宅における二重床は、例えばコンクリート製の床スラブ（下部床１に相当）の上方に床パネル（上部床２に相当）を設けるため、下部床１と上部床２との間に下地として複数の根太（床支持部材３に相当）を配置させる。このとき、上部床２の外側に位置する根太を際根太ともいう。
Next, each member which comprises the sound insulation structure of the double floor mentioned above is demonstrated, referring FIG.1 and 2. FIG.
In general, a double floor in an apartment house is provided with a floor panel (corresponding to the upper floor 2), for example, above a concrete floor slab (corresponding to the lower floor 1). A plurality of joists (corresponding to the floor support member 3) are arranged between the two as a base. At this time, the joist located on the outer side of the upper floor 2 is also referred to as an extra joist.
下部床１には、上部床と対向する下部床表面１１がある。
なお、下部床表面１１は床支持部材３の配置を考慮して平面状が好ましい。
The lower floor 1 has a lower floor surface 11 facing the upper floor.
The lower floor surface 11 is preferably flat in consideration of the arrangement of the floor support member 3.
上部床２には、居室Ｒ側に相当する上部床表面２１と、下部床１と向き合う上部床裏面２２とがある。
なお、上部床裏面２２は床支持部材３の配置を考慮して平面状が好ましい。上部床２の素材は、パーティクルボードや合板などの単板材や、これらパーティクルボードや合板など複数の板材を積層した積層板材が該当する。
The upper floor 2 has an
In addition, the upper
下部床１及び上部床２には、竪配管Ｐの設置に併せて切り欠いたり組み合わせたりして形成された貫通孔が設けられてもよく、これに伴い下部床１、上部床２及び隣接する複数の区画壁Ｗでパイプスペースが形成されていてもよい。
なお、下部床１及び上部床２は、集合住宅の最下階、中間階及び最上階のいずれの居室に該当してもよい。
The lower floor 1 and the upper floor 2 may be provided with through holes formed by notching or combining with the installation of the dredging pipe P, and accordingly, the lower floor 1, the upper floor 2 and the adjacent ones are adjacent to each other. A pipe space may be formed by a plurality of partition walls W.
The lower floor 1 and the upper floor 2 may correspond to any living room on the lowest floor, middle floor, and top floor of the apartment house.
床支持部材３は、下部床１と上部床２との間に設けられ、この上部床を支持している。床支持部材３の配置は、下部床１及び上部床２の内側から外端付近まで全面に至ってよく、一部分であってもよい。際根太に該当する床支持部材３は、区画壁Ｗの下方に位置し、この区画壁に対して偏芯して設置されてもよい。
なお、床支持部材３は、上端に上部床を支持する部材、下端に防振用のゴムが設けてある金属製又はプラスチック製の棒状部材からなるシステムネダ（登録商標）のみならず、木材のみで構成されてもよい。
The floor support member 3 is provided between the lower floor 1 and the upper floor 2 and supports the upper floor. The arrangement of the floor support member 3 may extend from the inner side of the lower floor 1 and the upper floor 2 to the vicinity of the outer edge, or may be a part. The floor support member 3 corresponding to the joist may be located below the partition wall W and may be installed eccentrically with respect to the partition wall.
Note that the floor support member 3 is not only a system Neda (registered trademark) made of a metal or plastic rod-like member provided with a member for supporting the upper floor at the upper end and an anti-vibration rubber at the lower end, but also only for wood. It may be constituted by.
繊維系吸音材４は、上下に平面状の端面４１及び４２がある矩形状の部材で、素材としては、グラスウールでもよい。繊維系吸音材４の配置は、竪配管Ｐに隣接する区画壁Ｗの下方で、際根太に該当する床支持部材３より竪配管Ｐ側でもよい。繊維系吸音材４の設置状態としては、自立していても隣接する床支持部材３を支えにして斜めに立て掛けてあってもよい。繊維系吸音材４の長さ寸法は、区画壁Ｗの長手方向の寸法のみならず、居室Ｒの寸法に併せてもよい。繊維系吸音材４の構成は、単体、複数個を一列に並べたもの、障害物（例えば、電気・ガス・水道の配管）を避けて分割したものでもよい。
なお、繊維系吸音材４の形状、素材、配置場所、設置上状態、数、幅、高さ及び長さ寸法に限定はない。例えば、幅薄の繊維系吸音材を複数重ね併せて一体的に用いてもよい。また、障害物に合わせて一部を切断したものや開口を有するものでもよい。区画壁Ｗが屈曲又は湾曲している場合、繊維系吸音材４をこの区画壁の形状に合うように形状や配置場所や構成を調整してもよい。
The fiber-based sound absorbing material 4 is a rectangular member having planar end surfaces 41 and 42 on the upper and lower sides, and the material may be glass wool. The arrangement of the fiber-based sound absorbing material 4 may be below the partition wall W adjacent to the saddle pipe P and closer to the saddle pipe P than the floor support member 3 corresponding to the joist. As the installation state of the fiber-based sound absorbing material 4, the fiber-based sound absorbing material 4 may be self-standing or leaning diagonally with the adjacent floor support member 3 as a support. The length dimension of the fiber-based sound absorbing material 4 may be combined with the dimension of the living room R as well as the dimension of the partition wall W in the longitudinal direction. The structure of the fiber-based sound absorbing material 4 may be a single member, a plurality of the sound-absorbing members 4 arranged in a row, or a portion divided so as to avoid obstacles (for example, electricity / gas / water pipes).
In addition, there is no limitation in the shape of a fiber type sound-absorbing material 4, a raw material, an arrangement place, an installation state, a number, a width | variety, height, and a length dimension. For example, a plurality of thin fiber-type sound absorbing materials may be stacked and used integrally. Moreover, what cut | disconnected one part according to the obstruction and what has an opening may be used. When the partition wall W is bent or curved, the shape, the arrangement location, and the configuration of the fiber-based sound absorbing material 4 may be adjusted to match the shape of the partition wall.
なお、区画壁Ｗは、居室Ｒを区画する間仕切壁のみならず、集合住宅を外部から区画する外壁も該当する。区画壁Ｗが間仕切壁の場合、床先行工法で施工された上部床２の上部床表面２２上に設置される。竪配管Ｐは、電気・ガス・水道を集合住宅の各階の居室Ｒに分配する横引き管と連結し、縦方向に貫通したパイプスペースに設置されている。区画壁Ｗ又は竪配管Ｐの形状、素材、配置場所、設置上状態、数、幅、高さ及び長さ寸法に限定はない。
In addition, the partition wall W corresponds not only to the partition wall that partitions the living room R but also to the outer wall that partitions the apartment house from the outside. When the partition wall W is a partition wall, the partition wall W is installed on the
次に、上述した二重床の遮音構造の施工法について、図１及び２を参照しつつ説明する。 Next, a construction method of the above-described double floor sound insulation structure will be described with reference to FIGS.
まず、下部床１上に一定の間隔で複数の床支持部材３を列状に配置し、下部床表面１１にこの床支持部材の下端を固定する。このとき、際根太に該当する床支持部材３は、下部床１の際より居室Ｒの内側寄りに配置する。こうすることで、後工程で配置される区画壁Ｗに対して床支持部材３が偏芯して位置することになる。そして、上部床２を複数の床支持部材３上に載せ、上部床裏面２２にこの床支持部材の上端を固定する。これで、二重床の基本構造が完成する。なお、竪配管Ｐを設置するパイプスペースは従来からの工法により設けるため、詳細な説明は省略する。
First, a plurality of floor support members 3 are arranged in rows on the lower floor 1 at regular intervals, and the lower ends of the floor support members are fixed to the lower floor surface 11. At this time, the floor support member 3 corresponding to the joist is arranged closer to the inside of the living room R than the lower floor 1. By carrying out like this, the floor support member 3 will be located eccentrically with respect to the partition wall W arrange | positioned at a post process. Then, the upper floor 2 is placed on the plurality of floor support members 3, and the upper end of the floor support member is fixed to the upper floor back
次に、繊維系吸音材４を下部床１と上部床２との間に収納可能な寸法及び形状に加工する。このとき、繊維系吸音材４の伸縮性を利用し、この繊維系吸音材の上端面４１及び下端面４２が上部床裏面２２及び下部床表面１１に密接するように加工してもよい。このとき、繊維系吸音材４の縦寸法が下部床表面１１及び上部床裏面２２の間隔より長くてもよい。すなわち、繊維系吸音材４を縦方向から圧縮して下部床１及び上部床２の間に収納し、収納後に形状が復元してこの繊維系吸音材の上端面４１及び下端面４２が上部床裏面２２及び下部床表面１１に密接すればよい。そして、加工した繊維系吸音材４を、下部床１と上部床２との間で、際根太に該当する床支持部材３の側部分に接する位置まで押込む。こうすることで、床支持部材３が支えとなり、繊維系吸音材４が居室Ｒ側に転倒しない予防となる。なお、繊維系吸音材４を配置するのは、区画壁Ｗを配置する前でも後でもよい。
Next, the fiber-based sound absorbing material 4 is processed into a size and shape that can be stored between the lower floor 1 and the upper floor 2. At this time, the stretchability of the fiber-based sound absorbing material 4 may be used so that the upper end surface 41 and the
このように、上述した二重床の遮音構造及びこの施工方法では、上部床２上に配置される区画壁Ｒのこの上部床を境にして下方に位置する繊維系吸音材４を有し、この繊維系吸音材の上下端面４１、４２が上部床裏面２２及び下部床表面１１に密接していることにより、この繊維系吸音材が竪配管Ｐからの放射音の拡散を防ぐ障壁となるため、二重床の空間を経由して居室Ｒ内に騒音が届くのを防止することができる。さらに、二重床の基本構造をそのまま活用できる上、繊維系吸音材の加工が容易なため、高い技量が無くとも床下に遮音構造を構築する施工時間を短縮することができる。また、繊維系吸音材４は区画壁Ｗの下方に位置するため、居室Ｒ内で発生する床衝撃音を伝播することを回避することができる。
Thus, in the sound insulation structure of the double floor and the construction method described above, the fiber-based sound absorbing material 4 is located below the upper floor of the partition wall R arranged on the upper floor 2 as a boundary, Since the upper and lower end surfaces 41, 42 of the fiber-based sound absorbing material are in close contact with the upper floor back
また、床支持部材３が上部床２を境にして区画壁Ｗの下方より居室Ｒの内側寄りに位置し、繊維系吸音材４がこの床支持部材より竪配管Ｐ側に位置することにより、二重床の施工後でもこの繊維系吸音材を目視することができる。すなわち、繊維系吸音材４が二重床に対して外側寄りに位置するため、配置後も状態を確認し易く、転倒や位置ずれを容易に修繕することができる。また、繊維系吸音材４が床支持部材３に近接しているため、この繊維系吸音材が二重床の内側方向への転倒を防止することができる。 Further, the floor support member 3 is located closer to the inside of the living room R than the lower part of the partition wall W with the upper floor 2 as a boundary, and the fiber-based sound absorbing material 4 is located on the side pipe P side from the floor support member. Even after the construction of the double floor, the fiber-based sound absorbing material can be visually observed. That is, since the fiber-based sound absorbing material 4 is located on the outer side with respect to the double floor, it is easy to check the state even after the arrangement, and it is possible to easily repair overturns and displacements. Further, since the fiber-based sound absorbing material 4 is close to the floor support member 3, the fiber-based sound absorbing material can prevent the double sound floor from falling to the inner side.
本発明における二重床の遮音構造の発想は、集合住宅のみならず、個別住宅、企業の建築物、及び医療施設や介護施設等に関する産業に広く利用可能できる。 The idea of the sound insulation structure of a double floor according to the present invention can be widely used not only in apartment houses but also in industries related to individual houses, corporate buildings, medical facilities, nursing care facilities, and the like.
１ 下部床
１１ 下部床表面
２ 上部床
２１ 上部床表面
２２ 上部床裏面
３ 床支持部材
４ 繊維系吸音材
４１ 吸音材上端面
４２ 吸音材下端面
Ｒ 居室
Ｗ 区画壁
Ｐ 竪配管
DESCRIPTION OF SYMBOLS 1 Lower floor 11 Lower floor surface 2
Claims (2)
前記上部床上に配置される前記居室の区画壁の当該上部床を境にして、当該区画壁の下方より当該居室の内側寄りに前記床支持部材を配置し、With the upper floor of the partition wall of the living room arranged on the upper floor as a boundary, the floor support member is arranged closer to the inside of the living room than below the partition wall,
その後、前記上部床及び前記下部床の間隔より長い縦寸法で加工した繊維系吸音材を、前記床支持部材より前記区画壁に隣接する竪配管側に縦方向に圧縮して前記上部床と前記下部床との間に収納し、Thereafter, the fiber-based sound absorbing material processed with a longitudinal dimension longer than the interval between the upper floor and the lower floor is compressed in the vertical direction from the floor support member to the side of the pipe adjacent to the partition wall to compress the upper floor and the Store between the lower floor,
その後、復元により前記繊維系吸音材の上下端面を前記上部床の裏面及び前記下部床の表面に密接させるThereafter, the upper and lower end surfaces of the fiber-based sound absorbing material are brought into close contact with the back surface of the upper floor and the surface of the lower floor by restoration.
二重床の遮音構造の施工法。Construction method of sound insulation structure of double floor.
請求項１に記載の二重床の遮音構造の施工法。The construction method of the sound insulation structure of the double floor of Claim 1.
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