JP5639766B2 - Floor structure - Google Patents

Floor structure Download PDF

Info

Publication number
JP5639766B2
JP5639766B2 JP2010033716A JP2010033716A JP5639766B2 JP 5639766 B2 JP5639766 B2 JP 5639766B2 JP 2010033716 A JP2010033716 A JP 2010033716A JP 2010033716 A JP2010033716 A JP 2010033716A JP 5639766 B2 JP5639766 B2 JP 5639766B2
Authority
JP
Japan
Prior art keywords
support
floor
elastic body
dynamic vibration
floor structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2010033716A
Other languages
Japanese (ja)
Other versions
JP2011169026A (en
Inventor
塚田　将
将 塚田
阿久津　悟
悟 阿久津
稲葉　健司
健司 稲葉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP2010033716A priority Critical patent/JP5639766B2/en
Publication of JP2011169026A publication Critical patent/JP2011169026A/en
Application granted granted Critical
Publication of JP5639766B2 publication Critical patent/JP5639766B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Floor Finish (AREA)

Description

本発明は、床構造に関する。   The present invention relates to a floor structure.

建築物の床構造においては、遮音性能及び防振性能を高めるため、スラブ等の床支持体の上方に支持脚を介して床材が間隔をあけて配置される、いわゆる二重床構造と呼ばれるものがある。   In the floor structure of a building, in order to improve the sound insulation performance and vibration isolation performance, it is called a so-called double floor structure in which floor materials are arranged at intervals above a floor support such as a slab via support legs. There is something.

この種二重床構造の一つとして、下記の特許文献１、２には、床支持体（スラブ）上に複数の支持脚（二重床支柱）を立設し、この支持脚の上端間にわたって掛け渡すように床材（床パネル）を敷き詰めるとともに、支持脚に、上下方向にバネ特性を有する動吸振器弾性体（弾性体）およびこの動吸振器弾性体を介して支持される動吸振器質量体（付加質量）からなる動吸振器を取り付けられたものが提案されている。   As one of this kind of double floor structure, in Patent Documents 1 and 2 below, a plurality of support legs (double floor struts) are erected on a floor support (slab), and between the upper ends of the support legs. The floor material (floor panel) is laid so as to hang over, and the dynamic vibration absorber elastic body (elastic body) having spring characteristics in the vertical direction and the dynamic vibration absorption supported by the dynamic vibration absorber elastic body on the support leg The thing to which the dynamic vibration absorber which consists of a container mass body (additional mass) was attached is proposed.

特許文献１は、クッションゴム（第１の弾性体）とクッション台座（第２の弾性体）とが直列に配置され、仕上げ材、ベースパネルの面状の材料を、パネル受け具、支持ボルト、弾性体受け具を介して前記クッション台座で支持する構造であり、クッション台座が弾性変形して質量体が振動を吸収するように上下動することで床材からの振動を吸収し、さらに減衰された振動がクッションゴムによって減衰されて床スラブに伝わる構造について開示したものである。
特許文献２には、上述した特許文献１の構造において、円柱形状の質量体の中央部に凹部を設け、この凹部内に弾性体を配置する構造について開示されている。
また、特許文献３には、上述した特許文献１、２とは異なり、支持用弾性体と動吸振器とが分離して配置された床構造について開示されている。 In Patent Document 1, a cushion rubber (first elastic body) and a cushion pedestal (second elastic body) are arranged in series, and a finishing material, a surface material of a base panel, a panel holder, a support bolt, It is a structure that is supported by the cushion pedestal via an elastic support, and the cushion pedestal absorbs vibration from the flooring by moving up and down so that the mass pedestal elastically absorbs vibration, and is further damped. The structure in which the vibration is attenuated by the cushion rubber and transmitted to the floor slab is disclosed.
Patent Document 2 discloses a structure in which, in the structure of Patent Document 1 described above, a recess is provided at the center of a cylindrical mass body, and an elastic body is disposed in the recess.
Further, Patent Document 3 discloses a floor structure in which a supporting elastic body and a dynamic vibration absorber are separately arranged, unlike Patent Documents 1 and 2 described above.

特開２００７−４００９３号公報JP 2007-40093 A 特開２００９−１７４１６０号公報JP 2009-174160 A 特開２００８−１８００７３号公報JP 2008-180073 A

しかしながら、従来の床構造では以下のような問題があった。
すなわち、特許文献１は、第１の弾性体、第２の弾性体、および質量体が直列に配置されることとなるため、床支持体と床材との間の離間距離が長くなり、床下高さに制限がある場合に適用できない場合があった。
特許文献２は、質量体の中央部に凹部が設けられ中空になっている分だけ低床化が図れるが、特許文献１と同様に第１の弾性体、第２の弾性体、および質量体が直列に配置されているので、低床化の阻害となっている。 However, the conventional floor structure has the following problems.
That is, in Patent Document 1, since the first elastic body, the second elastic body, and the mass body are arranged in series, the separation distance between the floor support and the flooring material becomes long, and the floor below In some cases, it could not be applied when the height was limited.
Patent Document 2 can reduce the floor by the amount of a hollow provided in the center of the mass body, but the first elastic body, the second elastic body, and the mass body as in Patent Document 1 Are arranged in series, which is an obstacle to lowering the floor.

また、特許文献３の床構造の場合、支持用弾性体と動吸振器とが分離して配置されているので特許文献１、２に比べて低床化には有利である。しかし、支持用弾性体は受け材に、動吸振器は下地パネルに接続されるのが通常であるが、下地パネルは１枚が非常に大きく、これに質量体を備えた動吸振器を取り付けて、運搬、位置合わせ等の組み付ける作業に手間と時間がかかることから、施工性の向上が求められおり、その点で改良の余地があった。   Moreover, in the case of the floor structure of patent document 3, since the support elastic body and the dynamic vibration absorber are arrange | positioned separately, compared with patent document 1, 2, it is advantageous to a floor reduction. However, the supporting elastic body is usually connected to the receiving material and the dynamic vibration absorber is connected to the base panel. However, one base panel is very large, and a dynamic vibration absorber equipped with a mass body is attached to it. In addition, since the assembly work such as transportation and alignment takes time and effort, improvement in workability is required, and there is room for improvement in that respect.

本発明は、上述する問題点に鑑みてなされたもので、床支持体と床材との間の離間距離を短くすることができ、また、リフォームを行う場合でも、床支持体と床材との間の離間距離の制限が少なくなる床構造を提供することを目的とする。
また、本発明の他の目的は、予め受け材に支持部材と動吸振器を組み付けておくことで軽量化を図ることができ、容易に施工することができる床構造を提供することである。 The present invention has been made in view of the above-described problems, and can reduce the separation distance between the floor support and the flooring material. Also, even when renovation is performed, the floor support and the flooring material can be reduced. An object of the present invention is to provide a floor structure in which the restriction of the separation distance between the two is reduced.
Another object of the present invention is to provide a floor structure that can be reduced in weight and can be easily constructed by assembling a support member and a dynamic vibration absorber to a receiving member in advance.

上記目的を達成するため、本発明に係る床構造では、床支持体と、床支持体の上方に床支持体に対して間隔をあけて配置され、下地パネル及び下地パネルの上側に敷き詰められて固定された仕上げ材から構成される床材と、床支持体上に配置され、床材を弾性変形可能な第１弾性体を介して支持する支持部材と、支持部材の周囲に少なくとも１個が設けられるとともに、床材から支持部材を介して床支持体へ伝わる振動を、第１質量体を有する第２弾性体の弾性変形によって第１質量体を振動させることで減衰させる動吸振器と、支持部材と動吸振器とをそれぞれ間隔をあけて配置させるとともに、下地パネルの下面に沿って板面が固定される剛性の高い材料からなる受け材と、を備えることを特徴としている。 In order to achieve the above object, in the floor structure according to the present invention, the floor support and the floor support are disposed above the floor support with a space with respect to the floor support , and are spread over the base panel and the base panel. and floor covering that consists of a fixed finishing material, arranged on the floor support, a support member for supporting the flooring through the first elastic member elastically deformable, at least one around the support member A dynamic vibration absorber that is provided and attenuates vibration transmitted from the floor material to the floor support through the support member by vibrating the first mass body by elastic deformation of the second elastic body having the first mass body; The support member and the dynamic vibration absorber are arranged with a space therebetween, and a receiving material made of a highly rigid material whose plate surface is fixed along the lower surface of the base panel is provided.

本発明では、何らかの原因で床材が振動する際に、動吸振器によって受け材を介して支持部材の近傍の床材の振動が減衰される。つまり、床材の振動が受け材を介して第２弾性体に伝わって弾性変形し、第１質量体が振動を吸収するように上下動することで、振動を減衰する。このため、床材から受け材と支持部材を介して床支持体に伝わる振動や音も低減される。
そして、支持部材と動吸振器とが分離した状態で並列に配置されているため、それら支持部材と動吸振器を直列に配置するタイプの床構造に比べ、床支持体と床材との離間距離を短くすることができ、床構造の低床化を図ることができる。したがって、リフォームをする場合には、床支持体と床材との離間距離が比較的短い値しか確保できない場合であっても施工可能である。
また、予め受け材に支持部材および動吸振器を組み付けることができ、軽量化が図れるため、このときの動吸振器の組み付け作業は、従来のように形状が大きく且つ重量が大きい床材に支持部材や動吸振器を組み付ける場合に比べて、はるかに容易になるという利点がある。 In the present invention, when the floor material vibrates for some reason, the vibration of the floor material in the vicinity of the support member is attenuated by the dynamic vibration absorber via the receiving material. That is, the vibration of the flooring material is transmitted to the second elastic body through the receiving material and elastically deforms, and the first mass body moves up and down so as to absorb the vibration, thereby attenuating the vibration. For this reason, vibration and sound transmitted from the floor material to the floor support through the receiving material and the support member are also reduced.
Since the support member and the dynamic vibration absorber are arranged in parallel with each other, the floor support and the floor material are separated from each other as compared with a floor structure in which the support member and the dynamic vibration absorber are arranged in series. The distance can be shortened, and the floor structure can be lowered. Therefore, in the case of remodeling, construction can be performed even when the separation distance between the floor support and the flooring material can ensure only a relatively short value.
In addition, since the support member and the dynamic vibration absorber can be assembled in advance to the receiving material, and the weight can be reduced, the assembly work of the dynamic vibration absorber at this time is supported on a floor material having a large shape and a large weight as in the past. There is an advantage that it becomes much easier than the case of assembling a member or a dynamic vibration absorber.

また、本発明に係る床構造では、支持部材の第１弾性体には、第２質量体が設けられ、第１質量体および前記第２質量体は、それぞれ質量が異なることが好ましい。
本発明では、第１質量体と第２質量体との質量を変化させたり、あるいは動吸振器が複数設けられる場合にはそれぞれの第２質量体の質量を変化させることにより、複数の周波数領域に対応することができ、遮音効果をより高めることが可能となる。 In the floor structure according to the present invention, the first elastic body of the support member is preferably provided with a second mass body, and the first mass body and the second mass body preferably have different masses.
In the present invention, the masses of the first mass body and the second mass body are changed, or when a plurality of dynamic vibration absorbers are provided, the masses of the respective second mass bodies are changed, whereby a plurality of frequency regions are obtained. Therefore, the sound insulation effect can be further enhanced.

また、本発明に係る床構造では、動吸振器が複数設けられ、これらの第２弾性体はそれぞればね定数が異なることが好ましい。
本発明では、複数の動吸振器の第２弾性体のばね定数を変化させることにより、複数の周波数領域に対応することができ、遮音効果をより高めることが可能となる。 In the floor structure according to the present invention, it is preferable that a plurality of dynamic vibration absorbers are provided, and the second elastic bodies have different spring constants.
In the present invention, by changing the spring constants of the second elastic bodies of the plurality of dynamic vibration absorbers, it is possible to deal with a plurality of frequency regions and to further enhance the sound insulation effect.

また、本発明に係る床構造では、支持部材には、第１弾性体の上部に第２質量体を有する第３弾性体が設けられ、第３弾性体の弾性変形によって第２質量体が変位して振動が減衰される構成としてもよい。
これにより、床支持体と床材との間の高さを比較的大きく取れる場合に、支持部材に対して第１弾性体と第３弾性体を直列に配置することができる。この場合、床材の振動が受け材を介して第３弾性体に伝わって弾性変形し、第２質量体が振動を吸収するように上下動することで振動が減衰するため、支持部材においても良好な振動減衰特性が得られ、遮音効果をより一層高めることができる。 In the floor structure according to the present invention, the support member is provided with the third elastic body having the second mass body on the first elastic body, and the second mass body is displaced by the elastic deformation of the third elastic body. Thus, the vibration may be attenuated.
Thereby, when the height between a floor support body and a flooring can be taken comparatively large, a 1st elastic body and a 3rd elastic body can be arranged in series with respect to a support member. In this case, the vibration of the floor material is transmitted to the third elastic body via the receiving material and elastically deformed, and the second mass body moves up and down so as to absorb the vibration, so that the vibration is attenuated. Good vibration damping characteristics can be obtained, and the sound insulation effect can be further enhanced.

また、本発明に係る床構造では、支持部材は、受け材から第１弾性体を支持するための支持ボルトを有し、受け材には、支持ボルトを螺合させるための雌ねじ部が設けられていることが好ましい。
本発明では、受け材の雌ねじ部に支持部材の支持ボルトを螺合することで、現場での施工前に予め受け材に支持部材を組み付けておくことが容易に行えることから、施工の簡略化を図ることができる。 In the floor structure according to the present invention, the support member has a support bolt for supporting the first elastic body from the receiving material, and the receiving material is provided with an internal thread portion for screwing the support bolt. It is preferable.
In the present invention, since the support bolt of the support member is screwed to the female thread portion of the receiving material, it is easy to assemble the supporting member to the receiving material in advance before construction on site, so that the construction is simplified. Can be achieved.

また、本発明に係る床構造では、受け材には、動吸振器の第２弾性体を下端側で支持する支柱が垂下した状態で一体的に接続されていることが好ましい。
本発明では、受け材に一体的に設けられている支柱に第１質量体を備えた第２弾性体を取り付けることで、現場での施工前に予め受け材に動吸振器を組み付けておくことが容易に行えることから、施工の簡略化を図ることができる。 In the floor structure according to the present invention, it is preferable that the support member is integrally connected to the support member in a state in which a support column supporting the second elastic body of the dynamic vibration absorber on the lower end side is suspended.
In the present invention, by attaching the second elastic body having the first mass body to the support column provided integrally with the receiving material, the dynamic vibration absorber is assembled in advance to the receiving material before construction on site. Therefore, construction can be simplified.

本発明の床構造によれば、支持部材と動吸振器とがそれぞれ分離して並列に配置されているため、床支持体と床材と間の離間距離を短くすることができ、床構造の低床化を図ることができる。したがって、リフォームを行う場合でも、床支持体と床材との間の離間距離の制限を少なくすることができる。
また、予め受け材に支持部材と動吸振器を組み付けておくことで、軽量化が図れ、容易に施工することができる。 According to the floor structure of the present invention, since the support member and the dynamic vibration absorber are separated and arranged in parallel, the separation distance between the floor support and the flooring material can be shortened. The floor can be lowered. Therefore, even when reforming is performed, the limitation on the separation distance between the floor support and the flooring can be reduced.
Further, by assembling the support member and the dynamic vibration absorber to the receiving material in advance, the weight can be reduced and construction can be easily performed.

本発明の第１の実施の形態による床構造を示す底面図である。It is a bottom view which shows the floor structure by the 1st Embodiment of this invention. 図１に示す床構造の要部を側方から見た断面図である。It is sectional drawing which looked at the principal part of the floor structure shown in FIG. 1 from the side. 図１に示す床構造の要部の底面図である。It is a bottom view of the principal part of the floor structure shown in FIG. 図１に示す要部断面図である。It is principal part sectional drawing shown in FIG. 図１に示す要部断面図である。It is principal part sectional drawing shown in FIG. 第２の実施の形態による床構造を示す側方断面図であって、図２に対応する図である。It is a sectional side view which shows the floor structure by 2nd Embodiment, Comprising: It is a figure corresponding to FIG. 変形例による受け材の構造を示す側方断面図である。It is side sectional drawing which shows the structure of the receiving material by a modification.

以下、本発明の実施の形態による床構造について、図面に基づいて説明する。   Hereinafter, a floor structure according to an embodiment of the present invention will be described with reference to the drawings.

（第１の実施の形態）
図１及び図２に示すように、本第１の実施の形態による床構造は、主にマンション等の集合住宅に用いられる二重床の構造であり、上階で発せられて階下に伝わる床の衝撃音や衝撃振動を低減させるものである。 (First embodiment)
As shown in FIGS. 1 and 2, the floor structure according to the first embodiment is a double floor structure mainly used in an apartment house such as a condominium. The floor is emitted from the upper floor and is transmitted downstairs. This reduces the impact sound and vibration.

これらの図において符号１はスラブ（床支持体）を示す。スラブ１の上方には、床材２がスラブ１に対して間隔をあけて配置されている。床材２は、下地パネル３と、下地パネル３の上側に敷き詰められて固定される仕上げ材４とから構成される。スラブ１と下地パネル３との間には、支持脚１０（支持部材）と複数（ここでは２個）の動吸振器２０とが受け材３０を介して下地パネル３に固定されている。これら支持脚１０と動吸振器２０と受け材３０とからなる組合せ（支持脚構造体５）が複数組、複数配置された下地パネル３に対して均等的に配置されている。
そして、支持脚１０は、平面視で下地パネル３の目地部分３ａの位置となるように受け材３０に配置され、動吸振器２０は、支持脚１０の近傍位置に隣接して配置される。 In these drawings, reference numeral 1 denotes a slab (floor support). Above the slab 1, the flooring 2 is disposed with a space from the slab 1. The flooring 2 is composed of a base panel 3 and a finishing material 4 that is laid and fixed on the upper side of the base panel 3. Between the slab 1 and the base panel 3, support legs 10 (support members) and a plurality (two in this case) of dynamic vibration absorbers 20 are fixed to the base panel 3 via receiving members 30. A plurality of combinations (support leg structures 5) composed of the support legs 10, the dynamic vibration absorbers 20, and the receiving members 30 are arranged evenly with respect to the plurality of base panels 3.
And the support leg 10 is arrange | positioned at the receiving material 30 so that it may become the position of the joint part 3a of the base panel 3 by planar view, and the dynamic vibration absorber 20 is arrange | positioned adjacent to the vicinity position of the support leg 10. FIG.

図２乃至図４に示すように、支持脚１０は、弾性部材を介して床材２を弾性的に支持するものである。具体的に支持脚１０は、スラブ１上に配置される円錐台状の例えばゴム材からなる支持用弾性体１１（第１弾性体）と、この支持用弾性体１１の上面に連結板１１ａを介して固定される支持ボルト１２と、支持ボルト１２を受け材３０に固定するための取付金具１３とから構成される。取付金具１３は、適宜な固定手段（図示省略）によって受け材３０に固定されている。この取付金具１３には、支持ボルト１２が溶接又はかしめ等の接合手段により固定されている。   As shown in FIGS. 2 to 4, the support leg 10 elastically supports the flooring 2 via an elastic member. Specifically, the support leg 10 has a truncated cone-shaped support elastic body 11 (first elastic body) disposed on the slab 1, and a connecting plate 11 a on the upper surface of the support elastic body 11. And a mounting bolt 13 for fixing the support bolt 12 to the receiving member 30. The mounting bracket 13 is fixed to the receiving member 30 by appropriate fixing means (not shown). A support bolt 12 is fixed to the mounting bracket 13 by a joining means such as welding or caulking.

図２、図３及び図５に示すように、動吸振器２０は、支持脚１０と分離して設けられ、床材２から支持脚１０を介してスラブ１へ伝わる振動（音を含む）を減衰させるものである。具体的に動吸振器２０は、受け材３０の下面３０ａに取り付けられた取付プレート２１を介して動吸振器支柱を構成する支持ボルト２２（支柱）が垂下するように取り付けられている。支持ボルト２２の下端には支持プレート２３が取り付けられ、この支持プレート２３によって、リング状に形成された動吸振器弾性体２４（第２弾性体）の下端が固定されて支持されている。   As shown in FIGS. 2, 3 and 5, the dynamic vibration absorber 20 is provided separately from the support leg 10, and vibrates (including sound) transmitted from the floor material 2 to the slab 1 through the support leg 10. Attenuate. Specifically, the dynamic vibration absorber 20 is attached so that support bolts 22 (posts) constituting the dynamic vibration absorber column are suspended via an attachment plate 21 attached to the lower surface 30 a of the receiving member 30. A support plate 23 is attached to the lower end of the support bolt 22, and the lower end of the dynamic vibration absorber elastic body 24 (second elastic body) formed in a ring shape is fixed and supported by the support plate 23.

動吸振器弾性体２４の上端には、連結板２４ａを介して鉄等の金属材料からなる錘２５（第１質量体）が接着等の適宜固定手段によって取り付けられている。錘２５は、全体が例えば動吸振器弾性体２４よりも大径とされたリング状に形成され、中央に支持ボルト２２を挿通させる貫通孔２５ａが形成され、しかも、下面中央には動吸振器弾性体２４を収納する凹部２５ｂが形成されている。この凹部２５ｂの天井面に、動吸振器弾性体２４の上面が連結板２４ａを介して当接された状態で、適宜固定手段によって取り付けられている。このとき、錘２５の上端と受け材３０の下面３０ａとの間には所定のクリアランスＣ（図５）が形成され、このクリアランスＣの範囲内で錘２５が上下方向に振動されるようになっている。
このように、動吸振器弾性体２４によって錘２５を載置状態で支持しており、動吸振器弾性体２４には圧縮力が加わる。ゴム等の弾性体は通常、引張りよりも圧縮に強いことから、動吸振器弾性体２４の信頼性並びに耐久性の向上を図ることができる。 A weight 25 (first mass body) made of a metal material such as iron is attached to the upper end of the dynamic vibration absorber elastic body 24 through a connecting plate 24a by appropriate fixing means such as adhesion. The weight 25 is formed in a ring shape having a larger diameter than that of the dynamic vibration absorber elastic body 24 as a whole, and a through hole 25a through which the support bolt 22 is inserted is formed at the center. A recess 25b for accommodating the elastic body 24 is formed. The upper surface of the dynamic vibration absorber elastic body 24 is attached to the ceiling surface of the recess 25b as appropriate by a fixing means in a state where the upper surface of the dynamic vibration absorber elastic body 24 is in contact with the connection plate 24a. At this time, a predetermined clearance C (FIG. 5) is formed between the upper end of the weight 25 and the lower surface 30a of the receiving member 30, and the weight 25 is vibrated in the vertical direction within the range of the clearance C. ing.
Thus, the weight 25 is supported by the dynamic vibration absorber elastic body 24 in a mounted state, and a compressive force is applied to the dynamic vibration absorber elastic body 24. Since an elastic body such as rubber is usually more resistant to compression than tension, the reliability and durability of the dynamic vibration absorber elastic body 24 can be improved.

支持脚１０および動吸振器２０を備える受け材３０は、支持脚１０により下地パネル３の下面所定箇所を幅広く支持するためのものである。受け材３０としては、例えば鉄製の鋼材等のように剛性の高い材料によって作られ、かつ、一辺が支持脚１０や複数の動吸振器２０の取付部材（後述する取付金具１３、取付プレート２３）を取り付け可能な範囲に設定され、平面視４角形状の板材からなっている。なお、受け材３０の形状は、平面視４角形に限られることなく、５角形等のように４角形以外の多角形でもよく、さらに、円形であってもあるいは楕円形であってもよい。   The receiving material 30 including the support leg 10 and the dynamic vibration absorber 20 is for widely supporting a predetermined portion of the lower surface of the base panel 3 by the support leg 10. The receiving member 30 is made of a material having high rigidity such as an iron steel material, for example, and one side is a supporting leg 10 or a mounting member for a plurality of dynamic vibration absorbers 20 (a mounting bracket 13 and a mounting plate 23 described later). Is set to a range that can be attached, and is made of a plate material having a quadrangular shape in plan view. Note that the shape of the receiving member 30 is not limited to a quadrangular shape in plan view, and may be a polygon other than a quadrangular shape such as a pentagonal shape, and may be a circular shape or an elliptical shape.

次に、上記構成の床構造の作用について図面に基づいて説明する。
本床構造では、何らかの原因で床材２が振動する場合、この床材２の振動は、受け材３０を介して支持用弾性体１１によって減衰されながら、さらに支持脚１０を介してスラブ１へ伝わる。このとき、支持脚１０の近傍に、一対の動吸振器２０、２０が配置されており、これら動吸振器２０の錘２５が動吸振器弾性体２４を介して床材２の振動を打ち消すように上下方向に振動することにより、支持脚１０近傍の床材２の振動が減衰される。この結果、受け材３０から支持脚１０を介してスラブ１に伝わる、音を含めた振動を低減することができ、良好な振動減衰特性が得られる。 Next, the effect | action of the floor structure of the said structure is demonstrated based on drawing.
In the present floor structure, when the flooring 2 vibrates for some reason, the vibration of the flooring 2 is attenuated by the supporting elastic body 11 via the receiving member 30 and further to the slab 1 via the supporting leg 10. It is transmitted. At this time, a pair of dynamic vibration absorbers 20, 20 are arranged in the vicinity of the support leg 10, and the weight 25 of these dynamic vibration absorbers 20 cancels the vibration of the flooring 2 via the dynamic vibration absorber elastic body 24. The vibration of the flooring 2 in the vicinity of the support leg 10 is attenuated by vibrating in the vertical direction. As a result, vibrations including sound transmitted from the receiving member 30 to the slab 1 via the support legs 10 can be reduced, and good vibration damping characteristics can be obtained.

ここで、支持脚１０と動吸振器２０とが分離した状態で並列に配置されているため、従来のような、支持脚と動吸振器を直列に配置するタイプの床構造に比べ、スラブ１と床材２との離間距離を短くすることができ、床構造の低床化を図ることができる。
また、本第１の実施の形態では、床下最少寸法Ｎ0（図２）を小さくできるため、リフォームをする場合、スラブ１と床材２との離間距離、つまり床下最少寸法Ｎ0が比較的短い値しかとれない場合であっても施工可能である。
さらに、予め受け材３０に支持脚１０および動吸振器２０を組み付けることができ、軽量化が図れるため、このときの動吸振器２０の組み付け作業は、従来のように形状が大きく重量が大きい床材に支持脚や動吸振器を組み付ける場合に比べて、はるかに容易である。 Here, since the support leg 10 and the dynamic vibration absorber 20 are arranged in parallel with each other, the slab 1 is compared with a conventional floor structure in which the support leg and the dynamic vibration absorber are arranged in series. The distance between the floor material 2 and the flooring 2 can be shortened, and the floor structure can be lowered.
In the first embodiment, since the minimum underfloor dimension N 0 (FIG. 2) can be reduced, when renovating, the separation distance between the slab 1 and the floor material 2, that is, the underfloor minimum dimension N 0 is relatively small. Even if only a short value can be taken, construction is possible.
Further, since the support leg 10 and the dynamic vibration absorber 20 can be assembled to the receiving member 30 in advance, and the weight can be reduced, the assembling operation of the dynamic vibration absorber 20 at this time is a floor having a large shape and a large weight as in the prior art. It is much easier than installing support legs and dynamic vibration absorbers on the material.

また、受け材３０に設けられている一対の動吸振器２０、２０のそれぞれの錘２５、２５の質量を変化させることにより、複数の周波数領域に対応することができ、遮音効果をより高めることが可能となる。
さらにまた、動吸振器２０は、上端が床下２の下面に取り付けられた動吸振器弾性体２４によって錘２５を吊り下げて支持する基本構成であるため、部品点数が少なく、もって動吸振器２０自体の構成の簡素化を図ることができる。
なお、複数の周波数領域に対応するには、一対の動吸振器２０、２０の動吸振器弾性体２４、２４のばね定数を変化させることでも対応可能である。 In addition, by changing the mass of each of the weights 25 and 25 of the pair of dynamic vibration absorbers 20 and 20 provided on the receiving member 30, it is possible to deal with a plurality of frequency regions and further enhance the sound insulation effect. Is possible.
Furthermore, the dynamic vibration absorber 20 has a basic configuration in which the weight 25 is suspended and supported by the dynamic vibration absorber elastic body 24 whose upper end is attached to the lower surface of the floor 2 below. It is possible to simplify the configuration of itself.
In addition, it can respond also by changing the spring constant of the dynamic vibration absorber elastic bodies 24 and 24 of a pair of dynamic vibration absorbers 20 and 20 in order to respond | correspond to a several frequency area | region.

上述のように第１の実施の形態による床構造では、支持客１０と動吸振器２０とがそれぞれ分離して並列に配置されているため、スラブ１と床材２と間の離間距離を短くすることができ、床構造の低床化を図ることができる。したがって、リフォームを行う場合でも、スラブ１と床材２との間の離間距離の制限を少なくすることができる。
また、予め受け材３０に支持脚１０と動吸振器２０を組み付けておくことで、軽量化が図れ、容易に施工することができる。 As described above, in the floor structure according to the first embodiment, since the support customer 10 and the dynamic vibration absorber 20 are separated and arranged in parallel, the separation distance between the slab 1 and the flooring 2 is shortened. The floor structure can be reduced. Therefore, even when reforming is performed, the limitation on the separation distance between the slab 1 and the flooring 2 can be reduced.
Moreover, by attaching the support leg 10 and the dynamic vibration absorber 20 to the receiving material 30 beforehand, weight reduction can be achieved and it can construct easily.

次に、本発明の床構造による他の実施の形態および変形例について、添付図面に基づいて説明するが、上述の第１の実施の形態と同一又は同様な部材、部分には同一の符号を用いて説明を省略し、実施の形態と異なる構成について説明する。   Next, other embodiments and modifications according to the floor structure of the present invention will be described with reference to the accompanying drawings. The same reference numerals are used for members and parts that are the same as or similar to those of the first embodiment described above. A description will be omitted, and a configuration different from that of the embodiment will be described.

（第２の実施の形態）
図６に示すように、第２の実施の形態による床構造は、支持脚１０において、支持用弾性体１１の上部に錘１４（第２質量体）を有する第２動吸振器弾性体１５（第３弾性体）が支持ボルト１２に設けられ、第２動吸振器弾性体１５の弾性変形によって錘１４が変位して振動が減衰される構成となっている。
第２動吸振器弾性体１５及び錘１４は、それぞれ動吸振器２０の動吸振器弾性体２４、錘２５と同様の構成をなしている。第２動吸振器弾性体１５は、その下面に固定される支持プレート１６が支持用弾性体１１の連結板１１ａに適宜な連結手段により固定されている。そして、このときの動吸振器２０の錘２５と、支持脚１０の錘１４とは互いに干渉しないように配置されている。 (Second Embodiment)
As shown in FIG. 6, the floor structure according to the second embodiment includes a second dynamic vibration absorber elastic body 15 (having a weight 14 (second mass body) above the support elastic body 11 in the support leg 10. The third elastic body) is provided on the support bolt 12, and the weight 14 is displaced by the elastic deformation of the second dynamic vibration absorber elastic body 15 so that the vibration is attenuated.
The second dynamic vibration absorber elastic body 15 and the weight 14 have the same configuration as the dynamic vibration absorber elastic body 24 and the weight 25 of the dynamic vibration absorber 20, respectively. The second dynamic vibration absorber elastic body 15 has a support plate 16 fixed to the lower surface thereof fixed to the connection plate 11a of the support elastic body 11 by appropriate connection means. At this time, the weight 25 of the dynamic vibration absorber 20 and the weight 14 of the support leg 10 are arranged so as not to interfere with each other.

このように構成される第２の実施の形態による床構造では、スラブ１と床材２との間の高さを比較的大きく取れる場合に効果的であり、支持脚１０に対して支持用弾性体１１と第２動吸振器弾性体１５を直列に配置することができる。この場合、床材２の振動が受け材３０を介して第２動吸振器弾性体１５に伝わって弾性変形し、錘１４が振動を吸収するように上下動することで振動が減衰するため、支持脚１０においても良好な振動減衰特性が得られ、遮音効果をより一層高めることができる。   The floor structure according to the second embodiment configured as described above is effective when the height between the slab 1 and the flooring 2 can be made relatively large. The body 11 and the second dynamic vibration absorber elastic body 15 can be arranged in series. In this case, the vibration of the flooring 2 is transmitted to the second dynamic vibration absorber elastic body 15 via the receiving member 30 and elastically deformed, and the vibration is attenuated by moving up and down so that the weight 14 absorbs the vibration. Also in the support leg 10, a favorable vibration damping characteristic can be obtained, and the sound insulation effect can be further enhanced.

なお、本第２の実施の形態では、支持脚１０の錘１４と動吸振器２０の錘２５との質量を変化させることも可能であり、これにより複数の周波数領域に対応することができ、遮音効果をより高めることが可能となる。   In the second embodiment, it is also possible to change the masses of the weight 14 of the support leg 10 and the weight 25 of the dynamic vibration absorber 20, thereby supporting a plurality of frequency regions, It is possible to further enhance the sound insulation effect.

（変形例）
図７に示すように、変形例による受け材３０は、支持脚１０の支持ボルト１２を螺合させるための雌ねじ部３１が設けられ、動吸振器２０の動吸振器弾性体２４を下端側で支持する支持ボルト２２（支柱）が垂下した状態で一体的に接続された構成となっている（図２参照）。雌ねじ部３１は、受け材３０の厚さ方向に貫通する円孔の内周面に支持ボルト１２を螺合させるための雌ねじ３１ａが形成されている。 (Modification)
As shown in FIG. 7, the receiving member 30 according to the modification is provided with a female thread portion 31 for screwing the support bolt 12 of the support leg 10, and the dynamic vibration absorber elastic body 24 of the dynamic vibration absorber 20 is disposed at the lower end side. The supporting bolts 22 (supports) to be supported are integrally connected in a suspended state (see FIG. 2). The female screw portion 31 is formed with a female screw 31 a for screwing the support bolt 12 into the inner peripheral surface of a circular hole that penetrates the receiving member 30 in the thickness direction.

このように変形例では、受け材３０の雌ねじ部３１に支持脚１０の支持ボルト１２を螺合し、且つ受け材３０に一体的に設けられている支持ボルト２２に動吸振器２０の錘２５を備えた動吸振器弾性体２４を取り付けることで、現場での施工前に予め受け材３０に支持脚１０及び動吸振器２０を組み付けておくことが容易に行えることから、施工の簡略化を図ることができる。   As described above, in the modified example, the support bolt 12 of the support leg 10 is screwed into the female thread portion 31 of the receiving material 30, and the weight 25 of the dynamic vibration absorber 20 is connected to the support bolt 22 provided integrally with the receiving material 30. By attaching the dynamic vibration absorber elastic body 24 provided with the structure, the support leg 10 and the dynamic vibration absorber 20 can be easily assembled in advance to the receiving material 30 before construction at the site, thereby simplifying the construction. Can be planned.

以上、本発明による床構造の実施の形態について説明したが、本発明は上記の実施の形態に限定されるものではなく、その趣旨を逸脱しない範囲で適宜変更可能である。
例えば、本実施の形態では受け材３０に対して支持脚１０と２個の動吸振器２０を備えた構成としているが、動吸振器２０の数量は２個であることに限定されることはなく、支持脚１０に対して並列に配置されていれば良いのであって、１個あるいは３個以上であってもかまわない。すなわち、動吸振器２０の個数は、床材２の振動条件、床材２の厚さ寸法等に基づく遮音効果の設定目標に応じて適宜決定すれば良い。 As mentioned above, although embodiment of the floor structure by this invention was described, this invention is not limited to said embodiment, It can change suitably in the range which does not deviate from the meaning.
For example, in the present embodiment, the support leg 10 and the two dynamic vibration absorbers 20 are provided for the receiving material 30, but the number of the dynamic vibration absorbers 20 is limited to two. However, it may be arranged in parallel to the support leg 10, and may be one or three or more. That is, the number of the dynamic vibration absorbers 20 may be appropriately determined according to the setting target of the sound insulation effect based on the vibration condition of the flooring 2, the thickness dimension of the flooring 2, and the like.

また、支持脚１０の支持用弾性体１１、錘１４、第２動吸振器弾性体１５、および動吸振器２０の動吸振器弾性体２４、錘２５の形状、質量、位置等の構成は上述した実施の形態に限られることなく、適宜設定可能である。
さらに、受け材３０についても、上述した実施の形態および変形例の構成に限定されることはなく、他の形状の受け材を用いても良い。
その他、本発明の趣旨を逸脱しない範囲で、上記した実施の形態における構成要素を周知の構成要素に置き換えることは適宜可能であり、また、上記した実施の形態を適宜組み合わせてもよい。 The configuration of the support elastic body 11, the weight 14, the second dynamic vibration absorber elastic body 15, the dynamic vibration absorber elastic body 24 of the dynamic vibration absorber 20, the weight 25, and the like are described above. The present invention is not limited to the embodiment described above and can be set as appropriate.
Furthermore, the receiving material 30 is not limited to the configurations of the above-described embodiments and modifications, and receiving materials having other shapes may be used.
In addition, it is possible to appropriately replace the constituent elements in the above-described embodiments with well-known constituent elements without departing from the spirit of the present invention, and the above-described embodiments may be appropriately combined.

１ スラブ（床支持体）
２ 床材
３ 下地パネル
４ 仕上げ材
５ 支持脚構造体
１０ 支持脚（支持部材）
１１ 支持用弾性体（第１弾性体）
１２ 支持ボルト
１３ 取付金具
１４ 錘（第２質量体）
１５ 第２動吸振器弾性体（第３弾性体）
２０ 動吸振器
２１ 取付プレート
２２ 支持ボルト（支柱）
２３ 支持プレート
２４ 動吸振器弾性体（第２弾性体）
２５ 錘（第１質量体）
２５ｂ 凹部
３０ 受け材
３１ 雌ねじ部 1 Slab (floor support)
2 Floor material 3 Base panel 4 Finishing material 5 Support leg structure 10 Support leg (support member)
11 Elastic body for support (first elastic body)
12 Support Bolt 13 Mounting Bracket 14 Weight (Second Mass)
15 Second dynamic vibration absorber elastic body (third elastic body)
20 Dynamic vibration absorber 21 Mounting plate 22 Support bolt (support)
23 support plate 24 dynamic vibration absorber elastic body (second elastic body)
25 weight (first mass)
25b Recess 30 Receiving material 31 Female thread

Claims (6)

床支持体と、
該床支持体の上方に前記床支持体に対して間隔をあけて配置され、下地パネル及び該下地パネルの上側に敷き詰められて固定された仕上げ材から構成される床材と、前記床支持体上に配置され、前記床材を弾性変形可能な第１弾性体を介して支持する支持部材と、
該支持部材の周囲に少なくとも１個が設けられるとともに、前記床材から前記支持部材を介して前記床支持体へ伝わる振動を、第１質量体を有する第２弾性体の弾性変形によって前記第１質量体を振動させることで減衰させる動吸振器と、
前記支持部材と前記動吸振器とをそれぞれ間隔をあけて配置させるとともに、前記下地パネルの下面に沿って板面が固定される剛性の高い材料からなる受け材と、
を備えることを特徴とする床構造。 A floor support;
Spaced relative to the bed support above the floor support and floor covering which is laid on the upper side of the base panel and the lower fabric panel Ru is configured from a fixed finishing material, said bed support A support member disposed above and supporting the flooring material via a first elastic body capable of elastic deformation;
At least one is provided around the support member, and vibrations transmitted from the floor material to the floor support through the support member are caused by elastic deformation of the second elastic body having the first mass body. A dynamic absorber that attenuates the mass body by vibrating,
The support member and the dynamic vibration absorber are arranged at intervals, and a receiving material made of a highly rigid material whose plate surface is fixed along the lower surface of the base panel ;
A floor structure characterized by comprising: 前記支持部材の第１弾性体には、第２質量体が設けられ、
前記第１質量体および前記第２質量体は、それぞれ質量が異なることを特徴とする請求項１に記載の床構造。 The first elastic body of the support member is provided with a second mass body,
The floor structure according to claim 1, wherein the first mass body and the second mass body have different masses. 前記支持部材には、前記第１弾性体の上部に前記第２質量体を有する第３弾性体が設けられ、該第３弾性体の弾性変形によって前記第２質量体が変位して振動が減衰される構成としたことを特徴とする請求項２に記載の床構造。 The support member is provided with a third elastic body having the second mass body above the first elastic body, and the second mass body is displaced by elastic deformation of the third elastic body to attenuate vibrations. The floor structure according to claim 2 , wherein the floor structure is configured as described above. 前記動吸振器が複数設けられ、
これらの前記第２弾性体はそれぞればね定数が異なることを特徴とする請求項１乃至３のいずれかに記載の床構造。 A plurality of the dynamic vibration absorbers are provided,
The floor structure according to any one of claims 1 to 3 , wherein each of the second elastic bodies has a different spring constant . 前記支持部材は、前記受け材から前記第１弾性体を支持するための支持ボルトを有し、
前記受け材には、前記支持ボルトを螺合させるための雌ねじ部が設けられていることを特徴とする請求項１乃至４のいずれかに記載の床構造。 The support member has a support bolt for supporting the first elastic body from the receiving material,
The floor structure according to any one of claims 1 to 4, wherein the receiving member is provided with a female screw portion for screwing the support bolt. 前記受け材には、前記動吸振器の第２弾性体を下端側で支持する支柱が垂下した状態で一体的に接続されていることを特徴とする請求項１乃至５のいずれかに記載の床構造。   The said receiving material is integrally connected in the state which the support | pillar which supports the 2nd elastic body of the said dynamic vibration damper on a lower end side hangs down. Floor structure.
JP2010033716A 2010-02-18 2010-02-18 Floor structure Expired - Fee Related JP5639766B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010033716A JP5639766B2 (en) 2010-02-18 2010-02-18 Floor structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010033716A JP5639766B2 (en) 2010-02-18 2010-02-18 Floor structure

Publications (2)

Publication Number Publication Date
JP2011169026A JP2011169026A (en) 2011-09-01
JP5639766B2 true JP5639766B2 (en) 2014-12-10

Family

ID=44683415

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010033716A Expired - Fee Related JP5639766B2 (en) 2010-02-18 2010-02-18 Floor structure

Country Status (1)

Country Link
JP (1) JP5639766B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013256817A (en) * 2012-06-13 2013-12-26 Shuji Endo Double floor
JP5824445B2 (en) * 2012-12-18 2015-11-25 住友理工株式会社 Floor structure
JP6560863B2 (en) * 2014-12-19 2019-08-14 住友理工株式会社 Damping floor structure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4396168B2 (en) * 2002-10-23 2010-01-13 オイレス工業株式会社 Dynamic vibration absorber and dynamic vibration absorber using the same
JP5238245B2 (en) * 2006-12-25 2013-07-17 株式会社ブリヂストン Floor structure
JP5128970B2 (en) * 2008-01-23 2013-01-23 株式会社ブリヂストン Floor support and floor structure
JP5026996B2 (en) * 2008-01-23 2012-09-19 株式会社ブリヂストン Floor support, floor structure, and floor installation method
JP2010203145A (en) * 2009-03-03 2010-09-16 Bridgestone Corp Floor supporting vibration absorber and floor structure

Also Published As

Publication number Publication date
JP2011169026A (en) 2011-09-01

Similar Documents

Publication Publication Date Title
JP5238245B2 (en) Floor structure
JP5102598B2 (en) Floor support and floor structure
KR102077192B1 (en) Vibration-resistant Hanger For Ceiling Supporting Ceiling Facility And Seismic-resistant Ceiling Frame Having The Same
JP4885624B2 (en) Floor structure
JP5705810B2 (en) TOWER STRUCTURE AND CONSTRUCTION METHOD FOR TOWER STRUCTURE
JP5639766B2 (en) Floor structure
JP2009007916A (en) Vibration damping structure and its specification setting method
WO2015098084A1 (en) Boiler support structure
JP5794528B2 (en) Seismic isolation structure
JP3861430B2 (en) Vibration control method for linked structures
JP5720718B2 (en) Vibration control building
JP5320031B2 (en) Damping building
JP6502116B2 (en) Vibration control device
JP2008240289A (en) Vibration control device and building equipped with the same
JP6079457B2 (en) Building
JP2018080804A (en) Vibration control mechanism and ceiling structure
JP5128969B2 (en) Floor support vibration absorber and floor structure
JP5507314B2 (en) Floor support and floor structure
JP7037320B2 (en) Vibration control building
JP4930183B2 (en) Damping floor structure
JP7424453B2 (en) floor structure
JP2010203145A (en) Floor supporting vibration absorber and floor structure
JP2006241784A (en) Damping structure for building
JP5128971B2 (en) Floor support vibration absorber and floor structure
JP2010242450A (en) Vibration control method, vibration control structure, and aseismatic reinforcing method

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20130110

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20131213

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20140107

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20140310

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20140930

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20141027

LAPS Cancellation because of no payment of annual fees