JP2016148217A - Double floor - Google Patents

Double floor Download PDF

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JP2016148217A
JP2016148217A JP2015026488A JP2015026488A JP2016148217A JP 2016148217 A JP2016148217 A JP 2016148217A JP 2015026488 A JP2015026488 A JP 2015026488A JP 2015026488 A JP2015026488 A JP 2015026488A JP 2016148217 A JP2016148217 A JP 2016148217A
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floor
support
support leg
base material
floor slab
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JP6571343B2 (en
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由記子 濱田
Yukiko Hamada
由記子 濱田
僚子 野島
Ryoko Nojima
僚子 野島
富士夫 中井
Fujio Nakai
富士夫 中井
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Taisei Corp
Top Kogyo Co Ltd
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Taisei Corp
Top Kogyo Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To further suppress transmission of noise and vibration on a double floor.SOLUTION: A double floor comprises: supporting leg members 10A, 10B, which are disposed on a floor slab 2; a floor substrate material 101, which is supported on the supporting leg members 10A, 10B; intermediate laying materials 102A, 102B, which are laid on the floor substrate material 101; and a floor finishing material 103, which is laid on the intermediate laying materials 102A, 102B and forms the floor surface. The supporting leg members 10A, 10B connect multiple supporting legs 11, 21 and supporting legs 11, 21, which are erected on the floor slab 2, with each other and has connecting members 12, 22, which support the floor substrate material 101. The intermediate laying material 102A is made of a material with higher rigidity and specific gravity than the floor substrate material 101, the intermediate laying material 102B and the floor finishing material 103.SELECTED DRAWING: Figure 2

Description

本発明は、二重床に関する。   The present invention relates to a double bed.

例えば特許文献１に開示されているように、マンションやビルディング等の建築構造物において、床スラブ上に、支柱を介して床板部を設ける二重床が広く用いられている。
このような二重床において、例えば床板部上を人が歩行したときの歩行音や物品を落下させたときの衝撃音が、床スラブの下方の下階に伝わるのを防ぐため、支持脚の下端部に防振ゴムが設けられている。この防振ゴムにより、床板部から支持脚を介して床スラブに伝わる音や振動を減衰する。 For example, as disclosed in Patent Document 1, in a building structure such as a condominium or a building, a double floor in which a floor plate portion is provided on a floor slab via a column is widely used.
In such a double floor, for example, in order to prevent the walking sound when a person walks on the floor board part or the impact sound when dropping an article from being transmitted to the lower floor below the floor slab, Anti-vibration rubber is provided at the lower end. The vibration-proof rubber attenuates sound and vibration transmitted from the floor plate portion to the floor slab through the support legs.

また、特許文献１には、支持脚上に、基材部、下側下地層、上側下地層、床仕上げ部を順次積層して構成した床板部を設ける構成が開示されている。そして、下側下地層、上側下地層の少なくとも一方を合板以外の板材により形成することで、強度を確保するとともに、安価な二重床を実現している。   Further, Patent Document 1 discloses a configuration in which a floor plate portion formed by sequentially laminating a base material portion, a lower base layer, an upper base layer, and a floor finish portion on a support leg is disclosed. Then, by forming at least one of the lower base layer and the upper base layer with a plate material other than the plywood, the strength is ensured and an inexpensive double floor is realized.

特許文献２には、両端付近から下方に突出する複数個の足部材を有する細長い板状の根太材を、複数列に配置する構成が開示されている。この構成において、互いに隣接する列同士で、各根太材を、隣接する列の根太材の間に配置することで、全体として千鳥状に配置している。このような構成によれば、上床のきしみを減少させ、下階に伝わる音を抑えることができる。   Patent Document 2 discloses a configuration in which elongated plate-like joists having a plurality of foot members projecting downward from the vicinity of both ends are arranged in a plurality of rows. In this configuration, the joists are arranged in a zigzag pattern as a whole by arranging the joists in the adjacent rows between the joists in the adjacent rows. According to such a configuration, it is possible to reduce the creaking on the upper floor and suppress the sound transmitted to the lower floor.

特開２０１３−１２２１１０号公報JP2013-122110A 特開２００１−９８７４７号公報JP 2001-98747 A

しかしながら、上述したような二重床においては、床板上に大きな衝撃が加わった場合には、床板部から支持脚を介して床スラブに音や振動が直接伝達されるだけでなく、床板部が床面に直交する方向に振動することによって、床板部の振動が、床板部と床スラブとの間の空間の空気を伝わって床スラブに伝達されることもある。このような場合に、床スラブ自体が振動し、下階に低周波の衝撃音（重量床衝撃音）が伝わることがある。
そこでなされた本発明の目的は、より一層、騒音や振動の伝達を抑えることのできる二重床を提供することである。 However, in the double floor as described above, when a large impact is applied to the floor board, not only the sound and vibration are directly transmitted from the floor board portion to the floor slab via the support legs, but also the floor board portion is By vibrating in the direction orthogonal to the floor surface, the vibration of the floor plate portion may be transmitted to the floor slab through the air in the space between the floor plate portion and the floor slab. In such a case, the floor slab itself vibrates, and a low-frequency impact sound (heavy floor impact sound) may be transmitted to the lower floor.
An object of the present invention made there is to provide a double floor which can further suppress transmission of noise and vibration.

本発明は、上記課題を解決するため、以下の手段を採用する。
すなわち、本発明は、床スラブ上に設けられる支持脚部材と、前記支持脚部材上に支持される床下地材と、前記床下地材上に敷設される中間敷設材と、前記中間敷設材上に敷設され、床の表面を形成する床仕上材と、を備え、前記支持脚部材は、前記床スラブ上に立設された複数の支持脚と、前記支持脚同士を連結するとともに、前記床下地材を支持する連結部材と、を備え、前記中間敷設材は、前記床下地材および前記床仕上げ材よりも、剛性が高く、かつ比重の大きい材料で形成されている。
このような構成によれば、床下地材と床仕上げ材との間に設けられる中間敷設材が、剛性が高くかつ比重の大きい材料で形成されることで、支持脚部材に支持される床材自体を、薄くとも高い剛性を有したものとなる。
また、支持脚部材を、複数の支持脚を連結部材で連結するようにすることで、床下地材は、それぞれの支持脚によって点状に支持されるのではなく、連結部材によって線状または面状に支持される。したがって、床下地材、中間敷設材、床仕上げ材が振動しにくくなる。
さらに、複数の支持脚を連結部材で連結することによって、施工時において、複数の支持脚を同時に設置することができ、施工の効率が高まる。 The present invention employs the following means in order to solve the above problems.
That is, the present invention provides a support leg member provided on a floor slab, a floor base material supported on the support leg member, an intermediate laying material laid on the floor base material, and the intermediate laying material. And a floor finishing material that forms a surface of the floor, and the support leg member connects the support legs to each other and a plurality of support legs standing on the floor slab, and A connecting member that supports a ground material, and the intermediate laying material is formed of a material having higher rigidity and higher specific gravity than the floor base material and the floor finishing material.
According to such a configuration, the intermediate laying material provided between the floor base material and the floor finishing material is formed of a material having high rigidity and high specific gravity, so that the floor material supported by the support leg member Even if it is thin, it has high rigidity.
In addition, by connecting the support leg members with a plurality of support legs, the floor base material is not supported by the support legs in a dotted manner, but is linear or surfaced by the connection members. Is supported in a shape. Accordingly, the floor base material, the intermediate laying material, and the floor finishing material are less likely to vibrate.
Furthermore, by connecting a plurality of support legs with a connecting member, a plurality of support legs can be installed simultaneously at the time of construction, and the efficiency of construction is increased.

また、前記床下地材および前記中間敷設材は、上下のパーティクルボード間に、硬質石膏ボードを介在させた構成を含むようにしてもよい。
これにより、中間敷設材を、既存の材料を用い、床下地材および床仕上げ材よりも、剛性が高く、かつ比重の大きい材料で容易に形成することができる。 The floor base material and the intermediate laying material may include a configuration in which a hard gypsum board is interposed between upper and lower particle boards.
Thereby, the intermediate laying material can be easily formed using a material having a higher rigidity and a higher specific gravity than existing floor materials and floor finishing materials.

また、前記床スラブから上方に延びる壁に沿って配置される前記支持脚部材において、前記連結部材が前記壁に沿って設けられる際根太を兼ねるようにしてもよい。
このように、連結部材と際根太とを兼ねるようにすることで、二重床を構成する部材数を抑えることができる。 Further, in the support leg member arranged along the wall extending upward from the floor slab, the connecting member may serve as a joist when provided along the wall.
Thus, the number of members constituting the double floor can be reduced by serving as both the connecting member and the joist.

さらに、前記支持脚は、前記床下地材側から前記床スラブ側に振動が伝わるのを抑える防振材と、前記床スラブから上方に向けて延びる支柱と、前記支柱に設けられ、前記連結部材を支持する支持ブラケットと、を備え、前記床スラブから上方に延びる壁に沿って配置される前記支持脚部材は、前記床スラブ上において前記壁から離間した位置に配置される前記支持脚部材に対し、前記防振材の剛性が高く設定されているようにしてもよい。
このような支持脚では、防振材により、床下地材側から前記床スラブ側に振動が伝わるのを抑えることができる。
さらに、室内において、壁に近接した位置には、家具や什器等の重量物を置くことが多い。そこで、壁に沿って配置される支持脚部材において、防振材の剛性を高くしておくことで、重量物を安定して支持することができる。 Further, the support legs are provided in the vibration isolating material for suppressing vibration from being transmitted from the floor base material side to the floor slab side, a support column extending upward from the floor slab, and the connection member. The support leg member disposed along a wall extending upward from the floor slab is provided on the support leg member disposed at a position spaced apart from the wall on the floor slab. On the other hand, the vibration isolator may have a high rigidity.
In such a support leg, vibration transmission from the floor base material side to the floor slab side can be suppressed by the vibration isolator.
Furthermore, in the room, a heavy object such as furniture or furniture is often placed near the wall. Therefore, in the support leg member disposed along the wall, the heavy object can be stably supported by increasing the rigidity of the vibration isolator.

本発明によれば、より一層、騒音や振動の伝達を抑えることが可能となる。   According to the present invention, transmission of noise and vibration can be further suppressed.

本実施形態に係る二重床を示す平面図である。It is a top view which shows the double floor which concerns on this embodiment. 床スラブの中央部寄りに配置される支持脚部材を示す断面図である。It is sectional drawing which shows the support leg member arrange | positioned near the center part of a floor slab. 床スラブの外周部に配置される支持脚部材を示す断面図である。It is sectional drawing which shows the support leg member arrange | positioned at the outer peripheral part of a floor slab. 二重床の施工の流れを示す図である。It is a figure which shows the flow of construction of a double floor. 第２の実施形態における支持脚部材の構成を示す断面図である。It is sectional drawing which shows the structure of the support leg member in 2nd Embodiment. 中間敷設材を設置しない構成において、連結部材の有無によるインピーダンスレベルを比較した図である。It is the figure which compared the impedance level by the presence or absence of a connection member in the structure which does not install an intermediate | middle laying material. 中間敷設材を設置した構成において、連結部材の有無によるインピーダンスレベルを比較した図である。It is the figure which compared the impedance level by the presence or absence of a connection member in the structure which installed the intermediate | middle laying material. 中間敷設材を設置した構成において、連結部材の有無によるインピーダンスレベルを比較した図である。It is the figure which compared the impedance level by the presence or absence of a connection member in the structure which installed the intermediate | middle laying material. 中間敷設材を設置せず、連結部材で支持脚を連結しない構成と、第１、第２の実施形態の構成とにおいて、重量床衝撃音レベル低減量を比較した図である。It is the figure which compared the weight floor impact sound level reduction amount in the structure which does not install an intermediate laying material and does not connect a support leg with a connection member, and the structure of 1st, 2nd embodiment.

以下、添付図面を参照して、本発明による二重床を実施するための形態について、図面に基づいて説明する。 Hereinafter, with reference to an accompanying drawing, a form for carrying out a double floor by the present invention is explained based on a drawing.

（第１の実施形態）
図１は、本実施形態に係る二重床を示す平面図である。図２は、床スラブの中央部寄りに配置される支持脚部材を示す断面図である。図３は、床スラブの外周部に配置される支持脚部材を示す断面図である。図４は、二重床の施工の流れを示す図である。
図１〜図３に示すように、建築構造物１には、二重床として、床スラブ２上に、支持脚部材１０Ａ、１０Ｂと、支持脚部材１０Ａ、１０Ｂ上に支持される床下地材１０１と、床下地材１０１上に敷設される中間敷設材１０２Ａ，１０２Ｂと、中間敷設材１０２Ｂ上に敷設される床仕上材１０３と、が設けられている。 (First embodiment)
FIG. 1 is a plan view showing a double floor according to the present embodiment. FIG. 2 is a cross-sectional view showing a support leg member disposed near the center of the floor slab. FIG. 3 is a cross-sectional view showing support leg members arranged on the outer periphery of the floor slab. FIG. 4 is a diagram showing a flow of construction of a double floor.
As shown in FIG. 1 to FIG. 3, the building structure 1 has a support floor member 10 </ b> A, 10 </ b> B and a floor base material supported on the support leg members 10 </ b> A, 10 </ b> B as a double floor on the floor slab 2. 101, intermediate laying materials 102A and 102B laid on the floor base material 101, and a floor finishing material 103 laid on the intermediate laying material 102B are provided.

支持脚部材１０Ａは、床スラブ２の外周部に位置する壁３よりも、床スラブ２の中央部寄りに配置される。図２、図４（ａ）に示すように、支持脚部材１０Ａは、二本一対の支持脚１１，１１と、これら支持脚１１，１１を連結する連結部材１２と、を備えている。   The support leg member 10 </ b> A is disposed closer to the center of the floor slab 2 than the wall 3 positioned on the outer periphery of the floor slab 2. As shown in FIGS. 2 and 4A, the support leg member 10 </ b> A includes a pair of support legs 11 and 11 and a connecting member 12 that connects the support legs 11 and 11.

図２に示すように、支持脚１１は、ベース部材（防振材）１３と、支柱１４と、支持ブラケット１５と、を備える。ベース部材１３は、防振性を有したゴム系材料からなる。ベース部材１３は、例えば、外径が上方に向かって漸次段階的に小さくなるよう形成されている。ベース部材１３は、上面に支柱１４が挿入される挿入凹部１３ａが形成されている。   As shown in FIG. 2, the support leg 11 includes a base member (vibration isolation material) 13, a support column 14, and a support bracket 15. The base member 13 is made of a rubber-based material having vibration isolation properties. The base member 13 is formed, for example, so that the outer diameter gradually decreases upward. The base member 13 has an insertion recess 13a in which the support column 14 is inserted on the upper surface.

また、支柱１４は、例えば樹脂系材料からなり、その下端部１４ａがベース部材１３の挿入凹部１３ａ内に挿入・固定されている。支柱１４は、その外周面にネジ溝１４ｂが螺旋状に形成されている。支柱１４の上端部１４ｔには、ドライバなどの工具を差し込む工具係合溝１４ｍが形成されている。   Moreover, the support | pillar 14 consists of resin-type materials, for example, The lower end part 14a is inserted in the insertion recessed part 13a of the base member 13, and is fixed. As for the support | pillar 14, the screw groove 14b is formed in the outer peripheral surface at the spiral. A tool engagement groove 14m into which a tool such as a screwdriver is inserted is formed in the upper end portion 14t of the support column 14.

支持ブラケット１５は、例えば樹脂系材料からなり、板状で、その中央部に、内周面にネジ溝１５ｎが形成された貫通孔１５ｈが貫通形成されている。この支持ブラケット１５は、ネジ溝１５ｎが形成された貫通孔１５ｈに、支柱１４が挿入され、ネジ溝１４ｂが螺合している。支持ブラケット１５は、貫通孔１５ｈに支柱１４をねじ込むことで、支柱１４に装着される。そして、支持ブラケット１５を支柱１４の中心軸周りに回転させることで、支持ブラケット１５を支柱１４に対して上下方向に高さ調整することができる。   The support bracket 15 is made of, for example, a resin material, has a plate shape, and a through hole 15h in which a thread groove 15n is formed on the inner peripheral surface is formed through the center portion thereof. The support bracket 15 has a support 14 inserted in a through hole 15h in which a screw groove 15n is formed, and a screw groove 14b is screwed. The support bracket 15 is attached to the support 14 by screwing the support 14 into the through hole 15h. Then, by rotating the support bracket 15 around the center axis of the column 14, the height of the support bracket 15 can be adjusted in the vertical direction with respect to the column 14.

連結部材１２は、平面視長方形状の合板等からなる。図４（ａ）に示すように、連結部材１２の長手方向両端部には、上下方向に貫通する貫通孔１２ｈが形成されている。この連結部材１２の両端部それぞれの貫通孔１２ｈには、下方から支柱１４が挿入され、支持ブラケット１５が連結部材１２の下面に突き当たるようになっている。そして、図２に示すように、支持ブラケット１５は、ビス１７により連結部材１２に一体化されている。ここで、支柱１４の上端部１４ｔは、連結部材１２よりも上方に突出するよう設けてもよい。
このようにして、連結部材１２の両端部には、支持脚１１，１１が一体に設けられることで、支持脚部材１０Ａが構成されている。支持脚部材１０Ａは、支持脚１１，１１と連結部材１２とにより、略門型をなすよう形成されている。 The connecting member 12 is made of a plywood having a rectangular shape in plan view. As shown in FIG. 4A, through holes 12h penetrating in the vertical direction are formed at both ends in the longitudinal direction of the connecting member 12. As shown in FIG. A support column 14 is inserted into the through hole 12 h at each end of the connecting member 12 from below so that the support bracket 15 abuts the lower surface of the connecting member 12. As shown in FIG. 2, the support bracket 15 is integrated with the connecting member 12 by screws 17. Here, the upper end portion 14 t of the support column 14 may be provided so as to protrude upward from the connecting member 12.
In this manner, the support legs 11 are integrally provided at both ends of the connecting member 12, thereby configuring the support leg member 10 </ b> A. The support leg member 10 </ b> A is formed by the support legs 11, 11 and the connecting member 12 so as to form a substantially portal shape.

床下地材１０１には、例えば、木質系のパーティクルボードが用いられる。床下地材１０１は、支持脚部材１０Ａの連結部材１２にビス１６を貫通させて、連結部材１２に締結固定される。
また、この床下地材１０１は、互いに隣接する床下地材１０１，１０１同士の間に、所定寸法の隙間Ｃを空けて配置される。 For the floor base material 101, for example, a wood particle board is used. The floor base material 101 is fastened and fixed to the connecting member 12 by passing the screws 16 through the connecting member 12 of the supporting leg member 10A.
Further, the floor base material 101 is disposed with a gap C having a predetermined size between the floor base materials 101 and 101 adjacent to each other.

中間敷設材１０２Ａには、例えば、硬質石膏ボードが用いられる。また、中間敷設材１０２Ｂには、例えば、木質系のパーティクルボードが用いられる。中間敷設材１０２Ａは、床下地材１０１、中間敷設材１０２Ｂおよび床仕材１０３よりも、剛性が高く、かつ比重が大きい。中間敷設材１０２Ａ，１０２Ｂは、ビス１８により、床下地材１０１に締結固定される。   For example, a hard gypsum board is used as the intermediate laying material 102A. Further, for example, a wood particle board is used for the intermediate laying material 102B. The intermediate laying material 102A has higher rigidity and higher specific gravity than the floor base material 101, the intermediate laying material 102B, and the floor covering 103. The intermediate laying materials 102A and 102B are fastened and fixed to the floor base material 101 by screws 18.

床仕上材１０３は、例えば、木質系のフローリング材が用いられる。床仕上材１０３は、接着剤およびフロアーステープル１９により、中間敷設材１０２Ｂに一体に固定されている。   As the floor finishing material 103, for example, a wood flooring material is used. The floor finishing material 103 is integrally fixed to the intermediate laying material 102 </ b> B by an adhesive and the floor staple 19.

このような支持脚部材１０Ａは、連結部材１２の上面１２ｔで、床下地材１０１、中間敷設材１０２Ａ，１０２Ｂ、床仕上材１０３を支持している。ここで、支持脚部材１０Ａの両端部の支持脚１１，１１は、連結部材１２よりも上方に突出した支柱１４の上端部１４ｔが、互いに隣接する床下地材１０１，１０１同士の隙間Ｃ内に挿入されている。   Such a supporting leg member 10A supports the floor base material 101, the intermediate laying materials 102A and 102B, and the floor finishing material 103 on the upper surface 12t of the connecting member 12. Here, the support legs 11, 11 at both ends of the support leg member 10 </ b> A are such that the upper ends 14 t of the columns 14 projecting upward from the connecting member 12 are in the gap C between the floor base materials 101, 101 adjacent to each other. Has been inserted.

図１に示すように、支持脚部材１０Ａは、連結部材１２の長手方向Ｘに直交する短手方向Ｙにおいては、一定に間隔Ｌを空けて配列されている。さらに、支持脚部材１０Ａは、長手方向Ｘにおいて互いに隣接する列同士が、短手方向ＹにＬ／２だけオフセットして配置されている。これにより、平面視すると、支持脚部材１０Ａが千鳥状に配置されている。   As shown in FIG. 1, the support leg members 10 </ b> A are arranged with a constant interval L in the short direction Y perpendicular to the longitudinal direction X of the connecting member 12. Further, the supporting leg members 10A are arranged such that rows adjacent to each other in the longitudinal direction X are offset by L / 2 in the lateral direction Y. As a result, the support leg members 10A are arranged in a staggered pattern when seen in a plan view.

また、図１、図３に示すように、支持脚部材１０Ｂは、床スラブ２の外周部に位置する壁３に近接して配置される。支持脚部材１０Ｂは、複数本の支持脚２１，２１と、これら支持脚２１，２１を連結する連結部材２２と、を備えている。   Moreover, as shown in FIGS. 1 and 3, the support leg member 10 </ b> B is disposed in the vicinity of the wall 3 located on the outer peripheral portion of the floor slab 2. The support leg member 10 </ b> B includes a plurality of support legs 21, 21 and a connecting member 22 that connects the support legs 21, 21.

図３に示すように、各支持脚２１は、支持脚部材１０Ａと同様のベース部材１３および支柱１４と、支持ブラケット２５と、を備える。   As shown in FIG. 3, each support leg 21 includes a base member 13 and a column 14 similar to the support leg member 10 </ b> A, and a support bracket 25.

支持ブラケット２５は、例えば樹脂系材料からなる板状で、その一端部２５ａに、内周面にネジ溝２５ｍが形成された貫通孔２５ｈが貫通形成されている。この支持ブラケット２５は、ネジ溝２５ｍが形成された貫通孔２５ｈに支柱１４が挿入され、ネジ溝１４ｂが螺合している。そして、支持ブラケット２５を支柱１４の中心軸周りに回転させることで、支持ブラケット２５を支柱１４に対して上下方向に高さ調整することができる。
支持ブラケット２５は、他端部２５ｂが、支柱１４の中心軸に直交する水平方向に向かって突出するよう設けられている。支持ブラケット２５の他端部２５ｂの上面には、上方に向かって突出する一対の突起片２６，２６が一体に形成されている。 The support bracket 25 has a plate shape made of, for example, a resin material, and a through hole 25h having a thread groove 25m formed in the inner peripheral surface thereof is formed through the one end 25a. In the support bracket 25, the support column 14 is inserted into the through hole 25h in which the screw groove 25m is formed, and the screw groove 14b is screwed. Then, by rotating the support bracket 25 around the center axis of the column 14, the height of the support bracket 25 can be adjusted in the vertical direction with respect to the column 14.
The support bracket 25 is provided so that the other end portion 25 b protrudes in the horizontal direction perpendicular to the central axis of the column 14. On the upper surface of the other end 25b of the support bracket 25, a pair of projecting pieces 26, 26 projecting upward are integrally formed.

連結部材２２は、例えば集成材からなる。連結部材２２は、突起片２６，２６の間において、支持ブラケット２５の他端部２５ｂ上に支持されている。この連結部材２２は、壁３に沿って配置される際根太である。そして、一本の連結部材２２に対し、複数の支持脚２１が、連結部材２２が連続する方向において間隔をあけて配置されている。   The connecting member 22 is made of laminated material, for example. The connecting member 22 is supported on the other end portion 25 b of the support bracket 25 between the projecting pieces 26 and 26. The connecting member 22 is a joist when arranged along the wall 3. And with respect to the one connection member 22, the some support leg 21 is arrange | positioned at intervals in the direction where the connection member 22 continues.

ここで、支持脚２１は、壁３に対し、支持ブラケット２５の他端部２５ｂが隙間Ｋを空けて配置されている。そして、支持ブラケット２５の他端部２５ｂと、壁３との隙間Ｋには、例えば発泡ポリエチレン等の弾力性、防振性を有した緩衝材３０が挟み込まれている。   Here, the other end 25 b of the support bracket 25 is disposed with a gap K between the support leg 21 and the wall 3. Then, in the gap K between the other end 25 b of the support bracket 25 and the wall 3, for example, a cushioning material 30 having elasticity and vibration isolation properties such as foamed polyethylene is sandwiched.

そして、このような支持脚部材１０Ｂの連結部材２２上に、床下地材１０１、中間敷設材１０２Ａ，１０２Ｂ、床仕上材１０３が支持されている。ここで、床下地材１０１、中間敷設材１０２Ａ，１０２Ｂは、壁３との間に、隙間Ｄを空けて設けられている。
そして、床仕上材１０３は、外周端部１０３ｄが、床下地材１０１、中間敷設材１０２Ａ，１０２Ｂよりも壁３に近接するよう設けられている。
さらに、床仕上材１０３の外周端部１０３ｄの上方に、幅木４１が壁３に固定されて設けられている。幅木４１は、床仕上材１０３の外周端部１０３ｄと壁３との隙間Ｄの上方を覆うように、床仕上材１０３の表面に対し、僅かに隙間を有して設けられている。 The floor base material 101, the intermediate laying materials 102A and 102B, and the floor finishing material 103 are supported on the connecting member 22 of the support leg member 10B. Here, the floor base material 101 and the intermediate laying materials 102 </ b> A and 102 </ b> B are provided with a gap D between the wall 3.
The floor finishing material 103 is provided such that the outer peripheral end portion 103d is closer to the wall 3 than the floor base material 101 and the intermediate laying materials 102A and 102B.
Further, a skirting board 41 is fixedly provided on the wall 3 above the outer peripheral end portion 103 d of the floor finishing material 103. The skirting board 41 is provided with a slight gap with respect to the surface of the floor finishing material 103 so as to cover the upper part of the gap D between the outer peripheral end portion 103 d of the floor finishing material 103 and the wall 3.

上記したような二重床を施工するには、予め、支持脚部材１０Ａ、１０Ｂをそれぞれ組み立てておく。
そして、図４（ａ）に示すように、床スラブ２上の所定位置に、所定数の支持脚部材１０Ａ、１０Ｂ（図４（ａ）には支持脚部材１０Ａのみを図示している）をセットする。 In order to construct the double floor as described above, the support leg members 10A and 10B are assembled in advance.
Then, as shown in FIG. 4 (a), a predetermined number of support leg members 10A and 10B (only the support leg member 10A is shown in FIG. 4 (a)) at predetermined positions on the floor slab 2. set.

次いで、図２、図３、図４（ｂ）に示すように、支持脚部材１０Ａ、１０Ｂ上に、床下地材１０１を敷設する。このとき、互いに隣接する床下地材１０１，１０１の間の隙間Ｃに、連結部材１２よりも上方に突出した支柱１４の上端部１４ｔが入り込むようにする。   Next, as shown in FIGS. 2, 3, and 4 (b), the floor base material 101 is laid on the support leg members 10 </ b> A and 10 </ b> B. At this time, the upper end portion 14t of the column 14 protruding upward from the connecting member 12 enters the gap C between the floor base materials 101 and 101 adjacent to each other.

この後、床下地材１０１上に、中間敷設材１０２Ａ，１０２Ｂ、および床仕上材１０３を順次敷設する。これにより、床スラブ２上に、二重床が形成される。   Thereafter, the intermediate laying materials 102A and 102B and the floor finishing material 103 are sequentially laid on the floor base material 101. Thereby, a double floor is formed on the floor slab 2.

上述したような構成の二重床によれば、床下地材１０１、中間敷設材１０２Ａ，１０２Ｂ、床仕上材１０３を支持する支持脚部材１０Ａ，１０Ｂが、床スラブ２上に立設された複数の支持脚１１，２１と、支持脚１１，２１同士を連結するとともに、床下地材１０１を支持する連結部材１２，２２と、を備えるようにした。これにより、床下地材１０１は、それぞれの支持脚１１，２１によって点状に支持されるのではなく、連結部材１２，２２によって線状または面状に支持される。したがって、床下地材１０１、中間敷設材１０２Ａ，１０２Ｂ、床仕上材１０３が強固に支持され、振動しにくくなる。
また、中間敷設材１０２Ａは、床下地材１０１、中間敷設材１０２Ｂおよび床仕上材１０３よりも、剛性が高く、かつ比重の大きい材料で形成されている。これにより、支持脚部材１０Ａ，１０Ｂに支持される床材自体を、薄くとも高い剛性を有したものとすることができる。
その結果、二重床において、より一層、騒音や振動の伝達を抑えることが可能となる。 According to the double floor configured as described above, a plurality of support leg members 10A and 10B that support the floor base material 101, the intermediate laying materials 102A and 102B, and the floor finishing material 103 are erected on the floor slab 2. The support legs 11, 21 and the support legs 11, 21 are connected to each other, and the connection members 12, 22 that support the floor base material 101 are provided. As a result, the floor base material 101 is not supported in a point shape by the respective support legs 11 and 21 but is supported in a linear or planar shape by the connecting members 12 and 22. Accordingly, the floor base material 101, the intermediate laying materials 102A and 102B, and the floor finishing material 103 are firmly supported and are less likely to vibrate.
The intermediate laying material 102A is formed of a material having higher rigidity and higher specific gravity than the floor base material 101, the intermediate laying material 102B, and the floor finishing material 103. Thereby, the flooring material itself supported by the supporting leg members 10A and 10B can have high rigidity even if it is thin.
As a result, transmission of noise and vibration can be further suppressed in the double floor.

さらに、複数の支持脚１１，２１を連結部材１２，２２で連結することによって、施工時において、複数の支持脚１１，２１を同時に設置することができる。したがって、施工の効率が高まる。   Further, by connecting the plurality of support legs 11 and 21 with the connecting members 12 and 22, the plurality of support legs 11 and 21 can be simultaneously installed at the time of construction. Therefore, the construction efficiency increases.

また、床スラブ２から上方に延びる壁３に沿って配置される支持脚部材１０Ｂにおいて、連結部材２２が壁３に沿って設けられる際根太を兼ねるようにした。これにより、二重床を構成する部材数を抑えることができる。   Further, in the support leg member 10 </ b> B arranged along the wall 3 extending upward from the floor slab 2, the connecting member 22 is also used as a joist when provided along the wall 3. Thereby, the number of members constituting the double floor can be suppressed.

さらに、支持脚１１，２１は、床下地材１０１側から床スラブ２側に振動が伝わるのを抑えるベース部材１３と、床スラブ２から上方に向けて延びる支柱１４と、支柱１４に設けられ、連結部材１２，２２を支持する支持ブラケット１５，２５と、を備えるようにしてもよい。このような支持脚１１，２１では、ベース部材１３により、床下地材１０１側から床スラブ２側に振動が伝わるのを抑えることができる。   Furthermore, the support legs 11 and 21 are provided on the base member 13 that suppresses vibration from being transmitted from the floor base material 101 side to the floor slab 2 side, the column 14 that extends upward from the floor slab 2, and the column 14. Support brackets 15 and 25 that support the connecting members 12 and 22 may be provided. In such support legs 11 and 21, the base member 13 can suppress vibration from being transmitted from the floor base material 101 side to the floor slab 2 side.

（第２の実施形態）
次に、本発明にかかる二重床の第２の実施形態について説明する。なお、以下に説明する第２の実施形態においては、上記第１の実施形態と共通する構成については図中に同符号を付してその説明を省略する。
図１に示すように、この実施形態における建築構造物１には、二重床として、床スラブ２上に、支持脚部材１０Ａ、１０Ｃと、支持脚部材１０Ａ、１０Ｃ上に支持される床下地材１０１、中間敷設材１０２Ａ，１０２Ｂ、および床仕上材１０３と、が設けられている。 (Second Embodiment)
Next, a second embodiment of the double floor according to the present invention will be described. Note that in the second embodiment described below, the same reference numerals are given to the same components as in the first embodiment, and description thereof will be omitted.
As shown in FIG. 1, the building structure 1 in this embodiment includes a floor base supported on the supporting leg members 10A and 10C and the supporting leg members 10A and 10C on the floor slab 2 as a double floor. A material 101, intermediate laying materials 102A and 102B, and a floor finishing material 103 are provided.

図２に示すように、床スラブ２の中央部寄りに配置される支持脚部材１０Ａは、上記第１の実施形態に示した構成と同様、二本一対の支持脚１１，１１と、これら支持脚１１，１１を連結する連結部材１２と、を備えている。
連結部材１２の両端部には、支持脚１１，１１が一体に設けられることで、支持脚部材１０Ａが構成されている。支持脚部材１０Ａは、支持脚１１，１１と連結部材１２とにより、略門型をなすよう形成されている。 As shown in FIG. 2, the support leg member 10A disposed near the center of the floor slab 2 has a pair of support legs 11 and 11 and these supports, as in the configuration shown in the first embodiment. And a connecting member 12 that connects the legs 11 and 11.
Support legs 11 and 11 are integrally provided at both ends of the connecting member 12 to form a support leg member 10A. The support leg member 10 </ b> A is formed by the support legs 11, 11 and the connecting member 12 so as to form a substantially portal shape.

図５は、この実施形態における支持脚部材の構成を示す断面図である。
図５に示すように、支持脚部材１０Ｃは、床スラブ２の外周部に位置する壁３に近接して配置される。支持脚部材１０Ｃは、複数本の支持脚３１，３１と、これら支持脚３１，３１を連結する連結部材２２と、を備えている。 FIG. 5 is a cross-sectional view showing the configuration of the support leg member in this embodiment.
As shown in FIG. 5, the support leg member 10 </ b> C is disposed in the vicinity of the wall 3 located on the outer peripheral portion of the floor slab 2. The support leg member 10 </ b> C includes a plurality of support legs 31, 31 and a connecting member 22 that connects the support legs 31, 31.

支持脚３１は、ベース部材（防振材）３３および支柱３４と、上記第１実施形態と同様の支持ブラケット２５と、を備える。
ここで、この実施形態におけるベース部材３３は、床スラブ２の中央部寄りに配置される支持脚部材１０Ａの支持脚１１を構成するベース部材１３（図２参照）よりも、上下方向の厚さが小さく設定されている。そして、支柱３４は、その下端部３４ａがベース部材３３に固定されている。この支柱３４は、その外周面にネジ溝３４ｂが螺旋状に形成されている。 The support leg 31 includes a base member (vibration isolation material) 33 and a support column 34, and a support bracket 25 similar to that in the first embodiment.
Here, the base member 33 in this embodiment is thicker in the vertical direction than the base member 13 (see FIG. 2) constituting the support leg 11 of the support leg member 10A disposed near the center of the floor slab 2. Is set smaller. The support 34 has a lower end 34 a fixed to the base member 33. As for this support | pillar 34, the thread groove 34b is formed in the outer peripheral surface at the spiral.

連結部材２２は、例えば集成材からなる。連結部材２２は、突起片２６，２６の間において、支持ブラケット２５の他端部２５ｂ上に支持されている。この連結部材２２は、壁３に沿って配置される際根太である。そして、一本の連結部材２２に対し、複数の支持脚３１が、連結部材２２が連続する方向において間隔を空けて配置されている。   The connecting member 22 is made of laminated material, for example. The connecting member 22 is supported on the other end portion 25 b of the support bracket 25 between the projecting pieces 26 and 26. The connecting member 22 is a joist when arranged along the wall 3. And with respect to the one connection member 22, the some support leg 31 is arrange | positioned at intervals in the direction where the connection member 22 continues.

ここで、支持脚３１は、壁３に対し、支持ブラケット２５の他端部２５ｂが間隔Ｋを空けて配置されている。そして、支持ブラケット２５の他端部２５ｂと、壁３との間には、例えば発泡ポリエチレン等の弾力性、防振性を有した緩衝材３０が挟み込まれている。   Here, in the support leg 31, the other end portion 25 b of the support bracket 25 is arranged with a gap K with respect to the wall 3. Then, between the other end 25b of the support bracket 25 and the wall 3, a cushioning material 30 having elasticity and vibration proofing properties such as foamed polyethylene is sandwiched.

そして、このような支持脚部材１０Ｃの連結部材２２上に、床下地材１０１、中間敷設材１０２Ａ，１０２Ｂ、床仕上材１０３が支持されている。ここで、床下地材１０１、中間敷設材１０２Ａ，１０２Ｂとの間に、隙間Ｄを開けて設けられている。
そして、床仕上材１０３は、外周端部１０３ｄが、床下地材１０１、中間敷設材１０２Ａ，１０２Ｂよりも壁３に近接するよう設けられている。
さらに、床仕上材１０３の外周端部１０３ｄの上方に、幅木４１が壁３に固定されて設けられている。幅木４１は、床仕上材１０３の外周端部１０３ｄと壁３との隙間Ｄの上方を覆うように、床仕上材１０３の表面に対し、僅かに隙間を有して設けられている。 The floor base material 101, the intermediate laying materials 102A and 102B, and the floor finishing material 103 are supported on the connecting member 22 of the support leg member 10C. Here, a gap D is provided between the floor base material 101 and the intermediate laying materials 102A and 102B.
The floor finishing material 103 is provided such that the outer peripheral end portion 103d is closer to the wall 3 than the floor base material 101 and the intermediate laying materials 102A and 102B.
Further, a skirting board 41 is fixedly provided on the wall 3 above the outer peripheral end portion 103 d of the floor finishing material 103. The skirting board 41 is provided with a slight gap with respect to the surface of the floor finishing material 103 so as to cover the upper part of the gap D between the outer peripheral end portion 103 d of the floor finishing material 103 and the wall 3.

上述したような二重床によれば、床下地材１０１、中間敷設材１０２Ａ，１０２Ｂ、床仕上材１０３を支持する支持脚部材１０Ａ，１０Ｃが、床スラブ２上に立設された複数の支持脚１１，３１と、支持脚１１，３１同士を連結するとともに、床下地材１０１を支持する連結部材１２，２２と、を備えるようにした。これにより、床下地材１０１は、それぞれの支持脚１１，３１によって点状に支持されるのではなく、連結部材１２，２２によって線状または面状に支持される。したがって、床下地材１０１、中間敷設材１０２Ａ，１０２Ｂ、床仕上材１０３が振動しにくくなる。
また、中間敷設材１０２Ａは、床下地材１０１、中間敷設材１０２Ｂおよび床仕上材１０３よりも、剛性が高く、かつ比重の大きい材料で形成されている。これにより、支持脚部材１０Ａ，１０Ｂに支持される床材自体を、薄くとも高い剛性を有したものとなる。
その結果、二重床において、より一層、騒音や振動の伝達を抑えることが可能となる。 According to the double floor as described above, the supporting leg members 10A and 10C for supporting the floor base material 101, the intermediate laying materials 102A and 102B, and the floor finishing material 103 are a plurality of supports erected on the floor slab 2. The legs 11 and 31 and the support legs 11 and 31 are connected to each other, and the connecting members 12 and 22 that support the floor base material 101 are provided. As a result, the floor base material 101 is not supported in the form of dots by the respective support legs 11, 31 but is supported linearly or planarly by the connecting members 12, 22. Accordingly, the floor base material 101, the intermediate laying materials 102A and 102B, and the floor finishing material 103 are less likely to vibrate.
The intermediate laying material 102A is formed of a material having higher rigidity and higher specific gravity than the floor base material 101, the intermediate laying material 102B, and the floor finishing material 103. Thereby, even if the flooring material itself supported by the supporting leg members 10A and 10B is thin, it has high rigidity.
As a result, transmission of noise and vibration can be further suppressed in the double floor.

さらに、複数の支持脚１１，３１を連結部材１２，２２で連結することによって、施工時において、複数の支持脚１１，３１を同時に設置することができる。したがって、施工の効率が高まる。   Further, by connecting the plurality of support legs 11, 31 with the connection members 12, 22, the plurality of support legs 11, 31 can be installed simultaneously during construction. Therefore, the construction efficiency increases.

また、床スラブ２から上方に延びる壁３に沿って配置される支持脚部材１０Ａ，１０Ｃにおいて、連結部材１２，２２が壁３に沿って設けられる際根太を兼ねるようにした。これにより、二重床を構成する部材数を抑えることができる。   Further, in the supporting leg members 10A and 10C arranged along the wall 3 extending upward from the floor slab 2, the connecting members 12 and 22 serve as joists when provided along the wall 3. Thereby, the number of members constituting the double floor can be suppressed.

さらに、支持脚３１は、床下地材１０１側から床スラブ２側に振動が伝わるのを抑えるベース部材３３と、床スラブ２から上方に向けて延びる支柱３４と、支柱３４に設けられ、連結部材２２を支持する支持ブラケット３５と、を備えるようにしてもよい。このような支持脚３１では、ベース部材３３により、床下地材１０１側から床スラブ２側に振動が伝わるのを抑えることができる。   Furthermore, the support leg 31 is provided on the base member 33 that suppresses vibration from being transmitted from the floor base material 101 side to the floor slab 2 side, the column 34 extending upward from the floor slab 2, and the column 34. And a support bracket 35 that supports 22. In such a support leg 31, the base member 33 can suppress vibration from being transmitted from the floor base material 101 side to the floor slab 2 side.

さらに、床スラブ２から上方に延びる壁３に沿って配置される支持脚部材１０Ｃは、床スラブ２上において壁３から離間した位置に配置される支持脚部材１０Ａに対し、ベース部材３３の剛性が高く設定されている。
室内において、壁３に近接した位置には、家具や什器等の重量物を置くことが多い。そこで、壁３に沿って配置される支持脚部材１０Ｃにおいて、ベース部材３３の剛性を高くしておくことで、重量物を安定して支持することができる。 Further, the supporting leg member 10C disposed along the wall 3 extending upward from the floor slab 2 is more rigid than the supporting leg member 10A disposed on the floor slab 2 at a position separated from the wall 3. Is set high.
In the room, a heavy object such as furniture or furniture is often placed near the wall 3. Therefore, in the support leg member 10 </ b> C arranged along the wall 3, it is possible to stably support heavy objects by increasing the rigidity of the base member 33.

（実施例）
上記したような第１、第２の実施形態の構成について、振動解析により、床スラブ２の揺れやすさ（インピーダンスレベル）を算出した。
まず、中間敷設材１０２Ａ，１０２Ｂを設置せずに、支持脚部材１０Ａ，１０Ｃ上に床下地材１０１と床仕上材１０３のみを敷設した場合について検討した。ここで、支持脚１１，３１を連結部材１２，２２で連結した支持脚部材１０Ａ，１０Ｃを用いる場合（比較例１）と、支持脚１１，３１を連結部材１２，２２で連結しない場合（比較例２）と、を比較とした。その結果を図６に示す。
この図６に示すように、下地材１０１と床仕上材１０３のみを敷設した場合、支持脚１１，３１を連結部材１２，２２で連結しない比較例２に対し、支持脚１１，３１を連結部材１２，２２で連結した支持脚部材１０Ａ，１０Ｃを用いた比較例１で、１６〜１２５Ｈｘの周波数域で、インピーダンスレベルが低く、床スラブ２が振動しやすいことが確認された。 (Example)
For the configurations of the first and second embodiments as described above, the ease of shaking (impedance level) of the floor slab 2 was calculated by vibration analysis.
First, the case where only the floor base material 101 and the floor finishing material 103 were laid on the supporting leg members 10A and 10C without installing the intermediate laying materials 102A and 102B was examined. Here, the case where the supporting leg members 10A and 10C in which the supporting legs 11 and 31 are connected by the connecting members 12 and 22 are used (Comparative Example 1) and the case where the supporting legs 11 and 31 are not connected by the connecting members 12 and 22 (comparison). Example 2) was compared. The result is shown in FIG.
As shown in FIG. 6, when only the base material 101 and the floor finishing material 103 are laid, the support legs 11 and 31 are connected to the connecting members 12 and 22 in comparison example 2 where the support legs 11 and 31 are not connected by the connecting members 12 and 22. In Comparative Example 1 using the supporting leg members 10A and 10C connected at 12 and 22, it was confirmed that the floor slab 2 was likely to vibrate in a frequency range of 16 to 125 Hx with a low impedance level.

次に、支持脚部材１０Ａ，１０Ｃ上に、床下地材１０１、中間敷設材１０２Ａ，１０２Ｂ、床仕上材１０３を敷設した場合について検討した。ここで、支持脚１１，３１を連結部材１２，２２で連結した支持脚部材１０Ａ，１０Ｃを用いる場合であって、第２実施形態の構成である場合（実施例２）と、支持脚１１，３１を連結部材１２，２２で連結しない場合（比較例３）と、を比較とした。その結果を図７に示す。
この図７に示すように、下地材１０１、中間敷設材１０２Ａ，１０２Ｂ、床仕上材１０３を敷設した場合、支持脚１１，３１を連結部材１２，２２で連結しない比較例３よりも、支持脚１１，３１を連結部材１２，２２で連結した支持脚部材１０Ａ，１０Ｃを用いる実施例２の方が、３１．５Ｈｚを除く全ての帯域でインピーダンスレベルが高く、床スラブ２が振動しにくいことが確認された。 Next, the case where the floor base material 101, the intermediate laying materials 102A and 102B, and the floor finishing material 103 were laid on the supporting leg members 10A and 10C was examined. Here, in the case where the support leg members 10A and 10C in which the support legs 11 and 31 are connected by the connection members 12 and 22 are used and the configuration of the second embodiment is used (Example 2), The case where 31 is not connected by the connecting members 12 and 22 (Comparative Example 3) was used as a comparison. The result is shown in FIG.
As shown in FIG. 7, when the base material 101, the intermediate laying materials 102 </ b> A and 102 </ b> B, and the floor finishing material 103 are laid, the support legs 11 and 31 are supported more than the comparative example 3 in which the connection members 12 and 22 are not connected. Example 2 using support leg members 10A and 10C in which 11, 31 are connected by connecting members 12 and 22 has a higher impedance level in all bands except 31.5 Hz, and floor slab 2 is less likely to vibrate. confirmed.

上記の中間敷設材１０２Ａ，１０２Ｂを敷設した場合において、支持脚部材１０Ｃを１０Ｂに変えた場合は、図８に示すように、支持脚１１、２１を連結部材１２、２２で連結しない場合（比較例４）と比較して、支持脚１１、２１を連結部材１２、２２で連結した第１実施形態の構成である場合（実施例１）は周波数全域でインピーダンスレベルが高く、床スラブ２が振動しにくいことが確認された。   In the case where the intermediate laying materials 102A and 102B are laid, when the supporting leg member 10C is changed to 10B, the supporting legs 11 and 21 are not connected by the connecting members 12 and 22 as shown in FIG. Compared to Example 4), in the case of the configuration of the first embodiment in which the support legs 11 and 21 are connected by the connecting members 12 and 22 (Example 1), the impedance level is high in the entire frequency range, and the floor slab 2 vibrates. It was confirmed that it was difficult to do.

さらに、中間敷設材１０２Ａ，１０２Ｂを設置せずに、支持脚部材１０Ａ，１０Ｂ（１０Ｃ）上に床下地材１０１と床仕上材１０３のみを敷設し、支持脚１１，２１を連結部材１２，２２で連結しない構成（比較例５）と、第１実施形態の構成（実施例１）と、第２実施形態の構成（実施例２）と、について、実際に床仕上げ材１０３上に重量物を落下させた場合の重量衝撃音レベル低減量を測定した。その結果を図９に示す。
この図９に示すように、支持脚部材１０Ａ，１０Ｂ（１０Ｃ）上に床下地材１０１と床仕上材１０３のみを敷設し、支持脚１１，２１を連結部材１２，２２で連結しない構成とした比較例５に対し、第１実施形態の構成を採用した実施例１、第２実施形態の構成を採用した実施例２では、重量衝撃音レベル低減量が大きいことが確認された。 Further, without installing the intermediate laying materials 102A and 102B, only the floor base material 101 and the floor finishing material 103 are laid on the support leg members 10A and 10B (10C), and the support legs 11 and 21 are connected to the connecting members 12 and 22 respectively. With regard to the configuration that is not connected in (Comparative Example 5), the configuration of the first embodiment (Example 1), and the configuration of the second embodiment (Example 2), a heavy article is actually placed on the floor finish 103. The amount of weight impact sound level reduction when dropped was measured. The result is shown in FIG.
As shown in FIG. 9, only the floor base material 101 and the floor finishing material 103 are laid on the support leg members 10 </ b> A and 10 </ b> B (10 </ b> C), and the support legs 11 and 21 are not connected by the connection members 12 and 22. It was confirmed that the weight impact sound level reduction amount was large in Example 1 that adopted the configuration of the first embodiment and Example 2 that adopted the configuration of the second embodiment, compared to Comparative Example 5.

（その他の実施形態）
なお、本発明の二重床は、図面を参照して説明した上述の各実施形態に限定されるものではなく、その技術的範囲において様々な変形例が考えられる。
例えば、支持脚部材１０Ａ〜１０Ｃの配置は、図１に示したものに限らない。
また、支持脚１１，２１，３１の構成も、同様の機能を発揮できるのであれば、適宜他の構成とすることができる。
さらに、支持脚部材１０Ａ〜１０Ｃや、床下地材１０１、中間敷設材１０２Ａ，１０２Ｂ、床仕上材１０３を構成する材料は、上記に例示したものに限らず、適宜他の材料とすることができる。
これ以外にも、本発明の主旨を逸脱しない限り、上記実施の形態で挙げた構成を取捨選択したり、他の構成に適宜変更したりすることが可能である。 (Other embodiments)
The double floor of the present invention is not limited to the above-described embodiments described with reference to the drawings, and various modifications are conceivable within the technical scope thereof.
For example, the arrangement of the support leg members 10A to 10C is not limited to that shown in FIG.
Further, the configuration of the support legs 11, 21, 31 can be appropriately changed to other configurations as long as the same function can be exhibited.
Furthermore, the materials constituting the supporting leg members 10A to 10C, the floor base material 101, the intermediate laying materials 102A and 102B, and the floor finishing material 103 are not limited to those exemplified above, and other materials can be appropriately used. .
In addition to this, the configuration described in the above embodiment can be selected or changed to another configuration as appropriate without departing from the gist of the present invention.

１ 建築構造物
２ 床スラブ
３ 壁
１０Ａ，１０Ｂ，１０Ｃ 支持脚部材
１１，２１，３１ 支持脚
１２，２２ 連結部材
１３，３３ ベース部材（防振材）
１４，３４ 支柱
１５，２５ 支持ブラケット
１０１ 床下地材
１０２Ａ，１０２Ｂ 中間敷設材
１０３ 床仕上材 DESCRIPTION OF SYMBOLS 1 Building structure 2 Floor slab 3 Wall 10A, 10B, 10C Support leg member 11,21,31 Support leg 12,22 Connecting member 13,33 Base member (vibration isolation material)
14, 34 Posts 15, 25 Support bracket 101 Floor base material 102A, 102B Intermediate laying material 103 Floor finishing material

Claims (4)

床スラブ上に設けられた支持脚部材と、
前記支持脚部材上に支持された床下地材と、
前記床下地材上に敷設される中間敷設材と、
前記中間敷設材上に敷設され、床の表面を形成する床仕上材と、を備え、
前記支持脚部材は、前記床スラブ上に立設された複数の支持脚と、
前記支持脚同士を連結するとともに、前記床下地材を支持する連結部材と、を備え、
前記中間敷設材は、前記床下地材および前記床仕上げ材よりも、剛性が高く、かつ比重の大きい材料で形成されていることを特徴とする二重床。 Support leg members provided on the floor slab;
A floor base material supported on the support leg member;
An intermediate laying material laid on the floor base material;
A floor finishing material laid on the intermediate laying material and forming a floor surface;
The support leg member includes a plurality of support legs erected on the floor slab;
Connecting the support legs to each other, and a connecting member for supporting the floor base material,
The intermediate laying material is formed of a material having higher rigidity and higher specific gravity than the floor base material and the floor finishing material. 前記床下地材および前記中間敷設材は、上下のパーティクルボード間に、硬質石膏ボードを介在させた構成を含むことを特徴とする請求項１に記載の二重床。   The double floor according to claim 1, wherein the floor base material and the intermediate laying material include a configuration in which a hard gypsum board is interposed between upper and lower particle boards. 前記床スラブから上方に延びる壁に沿って配置される前記支持脚部材において、前記連結部材が前記壁に沿って設けられる際根太を兼ねることを特徴とする請求項１または２に記載の二重床。   3. The double body according to claim 1, wherein the support leg member disposed along the wall extending upward from the floor slab also serves as a joist when the connection member is provided along the wall. 4. floor. 前記支持脚は、前記床下地材側から前記床スラブ側に振動が伝わるのを抑える防振材と、
前記床スラブから上方に向けて延びる支柱と、
前記支柱に設けられ、前記連結部材を支持する支持ブラケットと、を備え、
前記床スラブから上方に延びる壁に沿って配置される前記支持脚部材は、前記床スラブ上において前記壁から離間した位置に配置される前記支持脚部材に対し、前記防振材の剛性が高く設定されていることを特徴とする請求項１から３のいずれか一項に記載の二重床。 The support leg is a vibration-proof material that suppresses vibration from being transmitted from the floor base material side to the floor slab side,
A column extending upward from the floor slab;
A support bracket provided on the support and supporting the connecting member;
The support leg member arranged along the wall extending upward from the floor slab has higher rigidity of the vibration isolator than the support leg member arranged at a position spaced apart from the wall on the floor slab. It is set, The double floor as described in any one of Claim 1 to 3 characterized by the above-mentioned.
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