JP2002206302A - Sound insulating light-weight cellular concrete floor structure - Google Patents

Sound insulating light-weight cellular concrete floor structure

Info

Publication number
JP2002206302A
JP2002206302A JP2001001784A JP2001001784A JP2002206302A JP 2002206302 A JP2002206302 A JP 2002206302A JP 2001001784 A JP2001001784 A JP 2001001784A JP 2001001784 A JP2001001784 A JP 2001001784A JP 2002206302 A JP2002206302 A JP 2002206302A
Authority
JP
Japan
Prior art keywords
cellular concrete
floor
panel
vibration absorber
dynamic vibration
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.)
Granted
Application number
JP2001001784A
Other languages
Japanese (ja)
Other versions
JP4471502B2 (en
Inventor
Takayasu Watanabe
孝恭 渡邊
Kenji Takasa
健治 高佐
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.)
Asahi Kasei Corp
Original Assignee
Asahi Kasei 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 Asahi Kasei Corp filed Critical Asahi Kasei Corp
Priority to JP2001001784A priority Critical patent/JP4471502B2/en
Publication of JP2002206302A publication Critical patent/JP2002206302A/en
Application granted granted Critical
Publication of JP4471502B2 publication Critical patent/JP4471502B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Floor Finish (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a simple and highly reliable structure for mounting a dynamic vibration absorber on a surface of a floor constituted by spreading light-weight cellular concrete panels. SOLUTION: A sound insulating light-weight cellular concrete floor structure is constituted such that the floor structure is constituted by attaching the dynamic vibration absorber, the floor is constituted by light-weight cellular concrete panels 1, a long hole having at least a half or more length from a header face to an opposing header face is provided vertically for the header face on the header face of the light-weight cellular concrete panel 1, a spot facing hole communicating with the long hole is provided on a lower face of the panel, a terminal of a mounting fitting having an engaging hole at a terminal and a locking screw at a tip is inserted into the spot facing hole, a locking rod 2 inserted into the long hole is inserted through the engaging hole of the mounting fitting to lock the mounting fitting, and a mounting member 3 of the dynamic vibration absorber is connected with the tip locking screw of the mounting fitting 4.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、優れた遮音性能を
有する、軽量気泡コンクリートパネルが敷設されてなる
床構造に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor structure on which lightweight cellular concrete panels having excellent sound insulation performance are laid.

【0002】[0002]

【従来の技術】近年、集合住宅の一部や、2世帯住宅、
あるいは3階建て住宅において、軽量気泡コンクリート
からなる床構造が幅広く使用されている。軽量気泡コン
クリートからなる床構造は、従来の木造床に比較すれ
ば、遮音性に優れた性質の床構造である。しかしなが
ら、集合住宅に用いられた場合や、最近都市部を中心に
急速に普及してきている2世帯住宅、あるいは3階建て
住宅においては、さらに高度な遮音性が要求されてい
る。
2. Description of the Related Art In recent years, some apartment houses, two-family houses,
Alternatively, in three-story houses, floor structures made of lightweight cellular concrete are widely used. The floor structure made of lightweight cellular concrete is a floor structure having excellent sound insulation properties as compared with conventional wooden floors. However, in the case where it is used for an apartment house, or in a two-family house or a three-story house that has been rapidly spreading recently mainly in urban areas, higher sound insulation is required.

【0003】階上から階下への、床面を通しての騒音に
は大きく分けて軽量床衝撃音と、重量床衝撃音の2種類
がある。軽量床衝撃音は、人がハイヒールのような履物
を履いて階上を歩くときに生じるようなコツコツといっ
た騒音であり、フロアリングの仕様変更や、カーペット
を敷くなどの対策を講じることによって相当程度解決で
きる。一方、重量床衝撃音は、子供が飛び跳ねたりする
際に生じる種類の騒音であって、軽量床衝撃音と異な
り、なかなか有効な対策の難しい騒音である。近年、居
住者の住宅性能に対する要求は高度化してきており、遮
音性に関しても、従来よりさらに優れたものが求められ
るようになってきている。なかでも重量床衝撃音につい
ては高度な遮音性を求める要求が強い。
[0003] There are roughly two types of noises from the upper floor to the lower floor, passing through the floor surface: light floor impact sound and heavy floor impact sound. Lightweight floor impact noise is a noise generated by people walking on the floor while wearing footwear such as high heels, and it is considerable to take measures such as changing flooring specifications and carpeting. Solvable. On the other hand, the heavy floor impact sound is a kind of noise generated when a child jumps and jumps, and unlike the lightweight floor impact sound, it is a very difficult noise to effectively deal with. In recent years, demands for resident's housing performance have become more sophisticated, and there has been a demand for even better sound insulation. Above all, there is a strong demand for high sound insulation properties for heavy floor impact sounds.

【0004】重量床衝撃音の遮音のために、従来より数
々の提案がなされており、そのなかで、動吸振器が取り
付けられてなる床構造は公知である。例えば、特公平4
−4423には、床スラブ上に適宜空間を保ってユニッ
トパネルを多数並置して床下地を構築する床下地工法に
おいて、ユニットパネル上に適宜間隔を空けて多数の根
太材を列設することにより区画スペースを形成し、次い
でその区画スペースに動吸振器材を配置し、さらに前記
根太材上に動吸振器上面から空間を保つように捨て張り
材を施工した床工法が開示されている。
[0004] Many proposals have been made for sound insulation of heavy floor impact noise, and among them, a floor structure to which a dynamic vibration absorber is attached is known. For example, Japanese
In -4423, a floor foundation method in which a number of unit panels are juxtaposed and a floor space is appropriately arranged on a floor slab to construct a floor substrate, by arranging a large number of joists at intervals on the unit panels. There is disclosed a floor construction method in which a partition space is formed, a dynamic vibration absorber is disposed in the partition space, and a discarding member is constructed on the joist so as to keep a space from the top of the dynamic vibration absorber.

【0005】また、木村、井上らは日本建築学会計画系
論文集第496号、15頁〜21頁の“鉄骨ALC系住
宅における重量床衝撃音遮断性能の改善方法に関する研
究”(1997年6月)の17頁において、軽量気泡コ
ンクリートパネルが敷設されて床とされた場合の問題点
として、パネル相互の力学的連続性が不足し、重量床衝
撃音に対して有効な一体化された床として効果が上げら
れないという問題点を指摘している。該論文において上
記問題点に対しては、軽量気泡コンクリートパネルの周
囲小口部分にコンクリート用接着剤を塗りこみ、さらに
モルタルを流し込むという目地処理を行うことが、重量
衝撃音の遮音に対して効果のあることを示している。
In addition, Kimura and Inoue et al., Journal of Architectural Institute of Japan, Journal of Planning, No. 496, pp. 15-21, "Study on Improvement of Heavy Floor Impact Sound Isolation Performance in Steel ALC Housing" (June 1997). On page 17), when a lightweight cellular concrete panel is laid and used as a floor, there is a problem that the mechanical continuity between the panels is insufficient and the integrated floor is effective against heavy floor impact sound. He points out the problem that the effect cannot be achieved. To solve the above problem in the paper, it is effective to apply a concrete adhesive to a small edge portion of the lightweight cellular concrete panel, and to perform a joint treatment of pouring mortar, which is effective for sound insulation of heavy impact sound. It indicates that there is.

【0006】従来の技術の問題点をまず3つに分けて述
べる。1つは、軽量気泡コンクリートパネルに対する動
吸振動器の取り付けに関する問題点であり、もう1つは
軽量気泡コンクリートパネル自体に起因する問題点であ
り、さらにもう1つは、それらが敷設されて床とされた
場合の問題点である。まず最初の問題点は、軽量気泡コ
ンクリートパネルに対して、簡便でかつ高い信頼性を有
する動吸振器の取り付け構造、及び方法が提供されてい
ないということである。第2の問題点は、軽量気泡コン
クリートパネル自体の曲げ剛性が不足しているというこ
とである。また、第3の問題点、軽量気泡コンクリート
パネルが敷設されてなる床の問題点とは、パネル相互の
力学的連続性が不足し、重量床衝撃音に対して有効な一
体化された床としての効果が上がらないということであ
る。従来、例えば目地部の接着剤処理等の提案はある
が、動吸振器と併用されて高い効果を上げることのでき
る簡便かつ経済的な手段は提供されていない。
[0006] The problems of the prior art will first be described in three parts. One is the problem of attaching the dynamic vibration absorber to the lightweight cellular concrete panel, the other is the problem due to the lightweight cellular concrete panel itself, and the other is that they are laid and the floor is This is a problem when The first problem is that a simple and highly reliable mounting structure and a method of a dynamic vibration absorber for lightweight cellular concrete panels have not been provided. A second problem is that the bending rigidity of the lightweight cellular concrete panel itself is insufficient. Further, the third problem, that of a floor on which lightweight cellular concrete panels are laid, is that the mechanical continuity between the panels is insufficient and an integrated floor is effective against heavy floor impact sound. The effect is not improved. Conventionally, for example, there has been a proposal for an adhesive treatment of a joint portion, but no simple and economical means capable of achieving a high effect when used in combination with a dynamic vibration absorber has been provided.

【0007】以下に、上記に述べた計3つの問題点のう
ち、さらに詳しく説明した方が良いと考える最初の2つ
の問題点について詳述する。まず、第1の動吸振器の軽
量気泡コンクリートパネルへの取り付け構造に係わる問
題点について述べる。動吸振器を軽量気泡コンクリート
に取り付けて、遮音性、特に重量衝撃音の遮音性を向上
させようとした場合に、軽量気泡コンクリート独自の特
徴に起因する問題があるために、施工が簡便であって、
動吸振器の性能が十分に発揮され、かつその性能が長期
間に渡って維持される構造がなかったという問題点であ
る。
[0007] The first two of the three problems, which are considered to be more detailed, will be described in detail below. First, problems relating to the mounting structure of the first dynamic vibration absorber to the lightweight cellular concrete panel will be described. When the dynamic vibration absorber is attached to lightweight cellular concrete to improve sound insulation, especially for heavy impact sound, there is a problem due to the unique characteristics of lightweight cellular concrete, so construction is simple. hand,
This is a problem that the performance of the dynamic vibration absorber is sufficiently exhibited, and there is no structure capable of maintaining the performance for a long period of time.

【0008】重量床衝撃音のような騒音に対して、動吸
振器を用いて床パネルの振動抑制をする場合、明らかに
遮音性能の向上が認められるレベルにするためには、主
振動体である床パネルの質量に対して好ましくは1%以
上、より好ましくは10%以上、さらに好ましくは20
%程度以上の付加質量体を用いる必要がある。すなわ
ち、軽量気泡コンクリート床の場合、一枚のパネル寸法
として、例えば、一般的な厚み10cm、巾60cm、
長さ180cmのパネルでは密度0.6g/cm 3とし
て質量は約65kgであり、付加質量体として好ましく
は6.5kg程度、より好ましくは13kg程度のもの
を用いる必要がある。
In response to noise such as heavy floor impact noise,
When the vibration of the floor panel is suppressed by using the shaker,
In order to improve the sound insulation performance,
Preferably 1% or less based on the mass of the floor panel that is the vibrating body
Above, more preferably 10% or more, even more preferably 20% or more.
% Or more of the additional mass needs to be used. Sand
In the case of lightweight aerated concrete floor, one panel dimension
As, for example, a general thickness 10 cm, width 60 cm,
For a 180cm long panel, the density is 0.6g / cm Threeage
And the mass is about 65 kg, which is preferable as an additional mass.
Is about 6.5 kg, more preferably about 13 kg
Must be used.

【0009】また、床に取り付けられた動吸振器は、床
面上を人が歩いたりする際の振動を、共振することによ
って緩和する性質のものであり、長期間に渡って、日常
的に、振動が加わるものである。従って、床面への動吸
振器の取り付けに対しては、相当の質量からなる動吸振
器を、長年月に渡って恒常的に振動が加わる状態で、緩
みが生じないような状態で固定する必要がある。
The dynamic vibration absorber mounted on the floor is of a nature in which vibration when a person walks on the floor is resonated and relieved. , Vibration. Therefore, for mounting the dynamic vibration absorber on the floor surface, the dynamic vibration absorber having a considerable mass is fixed in a state where vibration is constantly applied for many months and there is no loosening. There is a need.

【0010】他方で、軽量気泡コンクリートは多くの気
泡を含有する構造であるために、ネジ孔を形成して、ネ
ジを用いて重量物を取り付けると、ネジ山が磨耗し易
く、動吸振器のようなものを信頼性高く固定することは
困難である。貫通の座くり孔を形成してボルトとナット
を用いて固定する場合には、狭い間隔で多数の貫通孔を
形成することになり、パネルのひび割れ、パネルの曲げ
強度の低下等の問題が生じる恐れがあり好ましくなく、
使用できるボルトの数は限られたものとなり、動吸振動
器の固定法として十分な信頼性のあるものではない。
[0010] On the other hand, since lightweight cellular concrete has a structure containing many bubbles, if a screw hole is formed and a heavy object is attached using a screw, the thread is likely to be worn, and the thread of the dynamic vibration absorber is likely to be worn. It is difficult to fix such things with high reliability. When a through hole is formed and fixed using bolts and nuts, a large number of through holes are formed at narrow intervals, which causes problems such as cracking of the panel and reduction in bending strength of the panel. Fear and not preferred,
The number of bolts that can be used is limited, and is not sufficiently reliable as a method for fixing the dynamic vibration absorber.

【0011】次に、従来技術の第2の問題点である、軽
量気泡コンクリート自体の曲げ剛性が不足しているとい
う問題点について詳しく述べる。重量床衝撃音のような
騒音に対しては、質量が重く、曲げ剛性の高いパネルが
有利である。その点で、軽量気泡コンクリートパネル
は、木造パネルに比べれば有利であるが、スラブコンク
リートのような材料と比べれば不利であり、近年の市場
の重量床衝撃音に対する高度な要求に対しては不十分で
ある。
Next, the second problem of the prior art, namely, the problem that the lightweight cellular concrete itself has insufficient flexural rigidity will be described in detail. For noise such as heavy floor impact noise, a panel having a large mass and high bending rigidity is advantageous. In that respect, lightweight cellular concrete panels are advantageous over wooden panels, but are disadvantageous when compared to materials such as slab concrete, and are not in response to the high demands of recent markets for heavy floor impact sound. It is enough.

【0012】軽量気泡コンクリートパネルは、気泡コン
クリートのみでは脆弱な曲げ剛性しか有しないので、通
常鉄筋で補強されており、曲げ剛性のかなりの部分は鉄
筋によるものである。鉄筋による補強は、工場にて型枠
を用いて製造する際に、あらかじめ所定の形状に配筋さ
れた鉄筋を型枠内にセットしておき、そこに発泡剤を含
有するモルタルを流し込むことにより行われる。型枠内
で、所定の形状に発泡し、一定の強度に達したモルタル
を型枠から取り出した後、所定の形状に切断し、その後
オートクレーブにて高温蒸気養生されてパネル製品が得
られる。
[0012] Since lightweight cellular concrete panels have only weak flexural rigidity by cellular concrete alone, they are usually reinforced with reinforcing steel, and a considerable portion of the flexural rigidity is due to the reinforcing steel. Reinforcement by reinforcing bars is to set reinforcing bars arranged in a predetermined shape in the form beforehand when manufacturing using the form at the factory, and by pouring mortar containing a foaming agent there. Done. The mortar that has been foamed into a predetermined shape in the mold and has reached a certain strength is taken out of the mold, cut into a predetermined shape, and then subjected to high-temperature steam curing in an autoclave to obtain a panel product.

【0013】型枠内に流し込んだモルタルは、配筋され
た鉄筋の間や鉄筋の周囲に十分回り込んで発泡硬化する
必要があるために、配筋できる鉄筋の本数や太さには限
界がある。また、鉄筋の本数や鉄筋の太さを変更するに
は、配筋に用いる大掛かりな設備の変更が必要であり、
また生産工程が煩雑になることを考えると必ずしも経済
的ではない。すなわち、従来技術の第2の問題点は、軽
量気泡コンクリートパネルの曲げ剛性を高めて、重量床
衝撃音に対する遮音性を向上させようとする際、生産の
工程に影響を与えずに、その場で適切に要求に応えるこ
とができるような手段が提供されていないことである。
[0013] Since the mortar poured into the formwork needs to be sufficiently wrapped around the reinforcing bars and around the reinforcing bars and foam-hardened, there is a limit to the number and thickness of reinforcing bars that can be arranged. is there. In addition, to change the number of reinforcing bars and the thickness of the reinforcing bars, it is necessary to change large-scale equipment used for reinforcing bars,
Also, considering that the production process becomes complicated, it is not necessarily economical. That is, the second problem of the prior art is that, when the bending rigidity of the lightweight cellular concrete panel is increased to improve the sound insulation against the heavy floor impact sound, the production process is not affected without affecting the production process. However, there is no means for appropriately responding to requests.

【0014】[0014]

【発明が解決しようとする課題】本発明は、以上述べた
従来技術の問題点である、軽量気泡コンクリートパネル
が敷設されて構成される床に対して、簡便でかつ高い信
頼性を有する動吸振器の床面への取り付け構造を提供
し、かつ、経済的に、必要に応じて、軽量気泡コンクリ
ートパネルの曲げ剛性を高める手段を提供するものであ
る。また本発明の第2は、従来技術の第3の問題点を解
決するものである。すなわち、軽量気泡コンクリートパ
ネルが敷設されてなる床において、複数の軽量気泡コン
クリートパネルを簡便に一体化し、上記の動吸振動器の
効果との複合化によって、重量床衝撃音に対する遮音性
をさらに大きく向上させる手段を提供するものである。
SUMMARY OF THE INVENTION The present invention provides a simple and highly reliable dynamic vibration absorber for a floor, on which lightweight cellular concrete panels are laid, which is a problem of the prior art described above. The present invention provides a structure for attaching a vessel to a floor surface, and provides a means for increasing the flexural rigidity of a lightweight cellular concrete panel economically and as required. A second aspect of the present invention is to solve the third problem of the prior art. That is, in the floor on which the lightweight cellular concrete panels are laid, a plurality of lightweight cellular concrete panels are easily integrated and combined with the effect of the above-described dynamic vibration absorber to further increase the sound insulation against heavy floor impact noise. It provides a means to improve.

【0015】[0015]

【課題を解決するための手段】本発明は、動吸振器が取
り付けられてなる床構造において、 1. 床は敷設された軽量気泡コンクリートパネルから
構成されている、 2. 該軽量気泡コンクリートパネルの小口面には、そ
の小口面と垂直に該小口面から相対する小口面までの長
さの少なくとも半分以上の長さを有する長孔が設けら
れ、パネル下面には前記長孔に連通する座くり孔が設け
られており、この座くり孔へ基端に係合孔、先端に係止
用ネジを有する取付金具の基端を差込み、前記長孔に差
し込んだ係止杆を該取付金具の係合孔に差し通して取付
金具が係止されている、 3. 動吸振器の取り付け部材が、前項2の取付金具の
先端係止用ネジに連結されている、ことを特徴とする遮
音性軽量気泡コンクリート床構造である。
The present invention relates to a floor structure to which a dynamic vibration absorber is attached. The floor consists of laid lightweight cellular concrete panels; The fore face of the lightweight cellular concrete panel is provided with a long hole having a length perpendicular to the fore face and at least half of the length from the fore face to the fore face, and the panel lower surface is provided with the elongated hole. A counterbore communicating with the hole is provided, a base of a mounting bracket having an engagement hole at a base end and a locking screw at a tip is inserted into the counterbore, and a locking rod inserted into the elongated hole. 2. The mounting bracket is locked by passing through the engaging hole of the mounting bracket. A sound-insulating lightweight cellular concrete floor structure, wherein a mounting member of the dynamic vibration absorber is connected to a screw for locking a distal end of the mounting bracket of item 2 above.

【0016】また、本発明の第2は、軽量気泡コンクリ
ートパネルの小口面にその面と垂直に、該小口面から相
対する小口面までの長さの少なくとも半分以上の長さを
有する長孔が設けられ、係止杆が少なくとも隣接する2
枚のパネルを貫通するごとく、該長孔に差し込まれてい
ることを特徴とする上に記載の遮音性軽量気泡コンクリ
ート床構造である。
[0016] A second aspect of the present invention is that an elongated hole having a length at least half or more of the length from the edge to the opposite edge is perpendicular to the edge of the lightweight cellular concrete panel. Provided with at least two adjacent locking rods.
The sound-insulating lightweight cellular concrete floor structure as described above, which is inserted into the long hole so as to penetrate a panel.

【0017】[0017]

【発明の実施の形態】本発明の実施例を図1〜図5に示
す。軽量気泡コンクリートパネルに対する動吸振器の取
り付け構造は、該床パネルの小口面1dにその面と垂直
方向に、該小口面から相対する小口面までの長さの少な
くとも半分以上の長さを有する長孔1aを設け、床パネ
ル下階側表面1cから該長孔1aに連通する座くり孔1
bを設け、基端に係合孔4a、先端に係止用ネジ4bを
有する取付金具4の基端を前記長孔1aに差込み、該長
孔1aに差し込んだ係止杆2を取付金具4の係合孔4a
に差し通し、さらに該取り付け金具4の先端係止用ねじ
4bを動吸振動器取り付け部材(筐体)3に連結してあ
る構造である。
1 to 5 show an embodiment of the present invention. The structure for attaching the dynamic vibration absorber to the lightweight cellular concrete panel has a length that is at least half or more of the length from the foreface to the foreface opposite to the foreface 1d of the floor panel in a direction perpendicular to the face. A hole 1a is provided, and a counterbore 1 communicating from the lower surface 1c of the floor panel to the slot 1a.
b, a base end of a mounting bracket 4 having an engagement hole 4a at a base end and a locking screw 4b at a front end is inserted into the elongated hole 1a, and a locking rod 2 inserted into the elongated hole 1a is attached to the mounting bracket 4. Engagement hole 4a
, And a screw 4b for locking the distal end of the mounting bracket 4 is connected to the dynamic vibration absorber mounting member (housing) 3.

【0018】取付金具4の基端の外径Bは、その基端と
先端間の軸部径より大きく、座くり孔1bは取り付け金
具4の基端が挿入できる大きさの径である。本発明では
多数の取付金具によって動吸振器を締結することがで
き、係止杆2と動吸振器取り付け部材3は軽量気泡コン
クリート1を強力に咥え込み、サンドイッチ構造を形成
している。そのサンドイッチ構造は、係止杆2による鉄
筋補強効果と相俟って軽量気泡コンクリートパネルに強
力な曲げ剛性を提供するものであり、重量衝撃に対して
強い抵抗性を付与する。
The outer diameter B of the base end of the mounting bracket 4 is larger than the diameter of the shaft portion between the base end and the front end, and the counterbore 1b has a diameter large enough to allow the base end of the mounting bracket 4 to be inserted. In the present invention, the dynamic vibration absorber can be fastened by a large number of mounting brackets, and the locking rod 2 and the dynamic vibration absorber mounting member 3 strongly hold the lightweight cellular concrete 1 to form a sandwich structure. The sandwich structure provides a strong flexural rigidity to the lightweight cellular concrete panel in combination with the reinforcing bar reinforcing effect of the locking rod 2, and provides strong resistance to weight impact.

【0019】長孔1aの長さが、小口面から該小口面と
相対する小口面までの長さの半分以上であることが、係
止杆2による鉄筋補強効果による曲げ剛性の付与と、係
止杆2と動吸振器取り付け部材3から構成されるサンド
イッチ構造による曲げ剛性の付与の効果の2つを生み出
し、その相乗効果によって、高度な遮音性能を実現して
いると考えられる。本発明では、動吸振器の取り付け部
材3を、取付金具4とナット等を用いて締結する際に、
取付金具4に若干の回転方向の遊びがあるため、バラン
スよく多数の取付金具を迅速に締結することができる。
しかし、動吸振器のパネルへの取り付け終了後には取付
金具4は回転運動することはなく、動吸振器は床パネル
に垂直下方に懸架されており、取り付け金具4と動吸振
器の取り付け部材3は、床パネルの運動に完全に追随す
る。
The fact that the length of the elongated hole 1a is at least half of the length from the fore-edge surface to the fore-edge surface opposite to the fore-edge surface is to provide the bending rigidity by the reinforcing rod reinforcing effect by the locking rod 2 and It is conceivable that the sandwich structure composed of the stop rod 2 and the dynamic vibration absorber attaching member 3 produces two effects of imparting bending rigidity, and a high level of sound insulation performance is realized by a synergistic effect. In the present invention, when the mounting member 3 of the dynamic vibration absorber is fastened to the mounting bracket 4 using a nut or the like,
Since the mounting bracket 4 has some play in the rotating direction, a large number of mounting brackets can be quickly fastened in a well-balanced manner.
However, after the mounting of the dynamic vibration absorber to the panel is completed, the mounting bracket 4 does not rotate, and the dynamic vibration absorber is suspended vertically below the floor panel, and the mounting bracket 4 and the mounting member 3 for the dynamic vibration absorber. Follows perfectly the movement of the floor panel.

【0020】したがって、長期的に高い信頼性の取り付
けという意味で、係止杆2に取付金具4を係合した後、
座くり孔1bをモルタル等でシールし、動吸振器取り付
け部材3を締結することが好ましい。また、取付金具4
に使用するナットも締結後の緩み防止のため、硬化性接
着剤等で固定することが好ましい。以下、実施例の詳細
を説明する。図1は、本発明の実施例による動吸振器付
き軽量気泡コンクリート床パネルの斜視図である。図2
は、その床パネルの断面図、図3は、その要部の一部切
欠斜視図である。図4は、実施例の構成を施工手順によ
り説明する説明図である。図5は、実施例に使用される
取付金具の例である。図6は、第2の発明の実施例を説
明する図である。
Therefore, after the mounting bracket 4 is engaged with the locking rod 2 in the sense that the mounting is highly reliable in the long term,
It is preferable to seal the counterbore 1b with mortar or the like and fasten the dynamic vibration absorber mounting member 3. Also, the mounting bracket 4
It is also preferable that the nut used for the fixing is fixed with a curable adhesive or the like in order to prevent loosening after fastening. Hereinafter, details of the embodiment will be described. FIG. 1 is a perspective view of a lightweight cellular concrete floor panel with a dynamic vibration absorber according to an embodiment of the present invention. FIG.
Is a cross-sectional view of the floor panel, and FIG. 3 is a partially cutaway perspective view of a main part thereof. FIG. 4 is an explanatory diagram illustrating the configuration of the example according to a construction procedure. FIG. 5 is an example of a mounting bracket used in the embodiment. FIG. 6 is a diagram for explaining an embodiment of the second invention.

【0021】まず、図4に従って、実施例の内容を述べ
ると、2階等の床建築施工現場において、床軽量気泡コ
ンクリートパネル1の小口面1dの所定の位置にその面
と垂直方向に、該小口面から相対する小口面までの長さ
の少なくとも半分以上の長さを有する長孔1aをあけ
る。この長孔1aは、パネルを貫通するように設けられ
ていても良い。また、パネル下階側表面1cからこの面
と垂直方向に長孔1aに達する概略円柱形の座くり穴1
bをあける。
First, the contents of the embodiment will be described with reference to FIG. 4. At a floor construction work site such as the second floor, the floor light-weight cellular concrete panel 1 is placed at a predetermined position on a small edge surface 1d in a direction perpendicular to the surface. A long hole 1a having a length of at least half or more of the length from the fore-edge surface to the opposite fore-edge surface is formed. This long hole 1a may be provided so as to penetrate the panel. A substantially cylindrical counterbore 1 extending from the panel lower floor surface 1c to the slot 1a in a direction perpendicular to this surface.
Open b.

【0022】座くり孔1bは、住宅等の建築現場で、幅
広く用いられているポータブルタイプの電気ドリルで容
易に穿孔することができる。長孔1aは、60cm程度
の長さであれば、上記電気ドリルで穴あけ可能であり、
一般的なパネルの巾方向であれば、貫通孔とすることも
容易である。パネルの長辺方向に対しては、通常180
cm程度の長さであるので、小口面との垂直性を保つよ
うな治具を用いるか、あるいは後述するように、パネル
の製造時にあらかじめ所定の場所に、長孔を設けること
が好ましい。
The counterbore 1b can be easily drilled with a portable electric drill widely used in a construction site such as a house. If the long hole 1a is about 60 cm long, it can be drilled by the electric drill,
In the width direction of a general panel, it is easy to form a through hole. Normally 180
Since the length is about cm, it is preferable to use a jig for maintaining perpendicularity to the fore-edge surface, or to provide a long hole in a predetermined place in advance at the time of manufacturing the panel, as described later.

【0023】動吸振器の取り付け位置は、振動の腹に相
当する場所に取り付けるのが最も効果的である。床が構
成された際に、床は各種の振動モードを持ち、各振動モ
ードに対応する腹の位置が存在する。したがって、どの
部分に、どのような動吸振器を取り付けるのが最も効果
的であるかは、実際上複雑な問題と考えられる。ただ
し、一般的に軽量気泡コンクリートパネルは、その長辺
方向を軽量鉄骨等で軸組みされた梁間に渡して、床を構
成するものである。そのため、該パネルの第一次の振動
の腹は該パネルの重心近傍に存在すると考えられる。し
たがって、その場合には動吸振器は概略、各パネルの重
心位置、すなわち各パネルの中心に動吸振器の重心位置
が一致するように取り付けることで、ほぼ最適化に近い
振動制御を行うことができる。
It is most effective to install the dynamic vibration absorber at a position corresponding to the antinode of vibration. When the floor is constructed, the floor has various vibration modes, and there are antinode positions corresponding to the respective vibration modes. Therefore, what dynamic damper is most effectively attached to which part is considered to be a complicated matter in practice. However, in general, a lightweight cellular concrete panel forms a floor by passing its long side direction between beams framed with lightweight steel frames or the like. Therefore, it is considered that the antinode of the primary vibration of the panel exists near the center of gravity of the panel. Therefore, in such a case, the dynamic vibration absorber is generally mounted so that the center of gravity of each panel, that is, the center of gravity of the dynamic vibration absorber coincides with the center of each panel, so that vibration control that is almost optimized can be performed. it can.

【0024】上記のように長孔1a、および、もしくは
座くり孔1bの位置を軽量気泡コンクリートパネル製造
時に決定しておき、工場にて型枠内でパネルを製造する
ときに、モルタル打設前に棒状のものを差し込んでお
き、モルタルが所定強度に達したときに、該棒状物を引
き抜くことにより、長孔1a、座くり孔1bを形成せし
めることができる。その場合、上記方法による長孔1
a、座くり孔1bの形成は生産工程に与える影響は小さ
なものであり、現場穿孔の手順を省略することができる
ので、経済的な施工方法となる。
As described above, the positions of the long hole 1a and / or the counterbore 1b are determined at the time of manufacturing the lightweight cellular concrete panel, and when the panel is manufactured in the formwork at the factory, before the mortar is cast. A long hole 1a and a counterbore 1b can be formed by inserting a rod-shaped object into the mortar and extracting the rod-shaped object when the mortar reaches a predetermined strength. In that case, the slot 1 by the above method
a) The formation of the counterbore 1b has a small effect on the production process, and the procedure of drilling on site can be omitted, so that it is an economical construction method.

【0025】この長孔1aと座くり孔1bが形成された
パネル1に対して、次に座くり孔1bに取付金具4を挿
入する。この取付金具4は、基端に係合孔4a、先端に
係止用ネジ4bを有しており、座くり孔1bに係合孔4
aを先にして長孔1aまで挿入し、一方係止杆2は長孔
1aに挿入し、係合孔4aを貫通して取付金具4と係合
する。図5は、取付金具4の例である。
Next, the mounting bracket 4 is inserted into the counterbore 1b with respect to the panel 1 in which the elongated hole 1a and the counterbore 1b are formed. The mounting bracket 4 has an engaging hole 4a at a base end and a locking screw 4b at a distal end.
a is inserted first to the long hole 1a, while the locking rod 2 is inserted into the long hole 1a and penetrates through the engaging hole 4a to engage with the mounting bracket 4. FIG. 5 is an example of the mounting bracket 4.

【0026】この取付金具4の形状は、基端に係合孔4
aを有し、先端に係止用ねじ4bを有し、その軸部4の
外径Aより、基端部の外径Bのほうが大きい構造で有れ
ば良い。係止用ねじ4bは、雄ねじでも、雌ねじであっ
ても良い。係合孔4aは、図5(a)のように環状であ
っても、図5(b)のように環状の一部が欠如していて
も、図5(c)のように長方形であっても、係止杆2を
係合保持できるもので有れば良い。
The shape of the mounting bracket 4 is such that an engagement hole 4
It is sufficient that the outer diameter B of the base portion is larger than the outer diameter A of the shaft portion 4. The locking screw 4b may be a male screw or a female screw. The engagement hole 4a has a rectangular shape as shown in FIG. 5 (c) irrespective of whether it is annular as shown in FIG. 5 (a) or a part of the annular shape as shown in FIG. 5 (b). However, it is sufficient if the locking rod 2 can be engaged and held.

【0027】係止杆2は、取付金具4の係合孔に差し通
しできる太さのものであれば、棒状でも、環状でも良
い。また、図5(c)のような係合孔を有する取付金具
に対しては、略長方形の係止杆をもちいることが好まし
い。図1は、本発明による動吸振器が取り付けられた軽
量気泡コンクリートパネルを下方より見た斜視図であ
る。3は動吸振器取り付け部材であり、鉄、アルミニウ
ム等の金属、あるいはプラスチック等よりなる筐体であ
る。取付金具4との締結に支障を及ぼさない範囲で、軽
量化のために、部分的にパンチングメタルを用いたり、
グレーチングのような構造としても良い。
The locking rod 2 may be rod-shaped or ring-shaped as long as it can be inserted into the engagement hole of the mounting bracket 4. Further, it is preferable to use a substantially rectangular locking rod for a mounting bracket having an engagement hole as shown in FIG. FIG. 1 is a perspective view of a lightweight cellular concrete panel to which a dynamic vibration absorber according to the present invention is attached, as viewed from below. Reference numeral 3 denotes a dynamic vibration absorber mounting member, which is a housing made of metal such as iron or aluminum, or plastic. To the extent that it does not hinder the fastening with the mounting bracket 4, a partially perforated metal may be used for weight reduction,
A structure like grating may be used.

【0028】図1で5,6は動吸振器本体部分であり、
5は弾性体である。弾性体としては発泡プラスチック
ス、発泡ゴム等の弾性体、あるいはゴム製、プラスチッ
ク製、金属製等のバネ材を用いることができる。図1の
6は、付加質量であり、例えば金属製のプレートであ
る。弾性体5、付加質量6は、動吸振器取り付け部材3
の上に置かれている状態なので、通常、大きな力が加わ
ることはない。したがって、ビス、クランプ等の接合用
金具や、接着剤によって良好に行うことができる。ま
た、付加質量の形状を若干工夫して、弾性体5と嵌合構
造を形成した上で、接着剤を用いて一体化することも好
ましい。
In FIG. 1, reference numerals 5 and 6 denote dynamic vibration absorber main bodies,
5 is an elastic body. As the elastic body, an elastic body such as foamed plastics or foamed rubber, or a spring material such as rubber, plastic, or metal can be used. Reference numeral 6 in FIG. 1 denotes an additional mass, which is, for example, a metal plate. The elastic body 5 and the additional mass 6 are attached to the dynamic vibration absorber mounting member 3.
Because it is placed on the top, there is usually no large force applied. Therefore, it can be satisfactorily performed by using a joining metal fitting such as a screw or a clamp, or an adhesive. Further, it is also preferable to form the fitting structure with the elastic body 5 by slightly devising the shape of the additional mass, and then integrate the structure with the adhesive.

【0029】付加質量6と弾性体5の物性の関係につい
て、簡単に述べる。付加質量6の質量をM(kg)、弾
性体5のバネ定数をK(N/m)とすると、付加質量M
の共振周波数はf0(Hz)は、振動の理論では、 f0=(1/2π)×(K/M)1/2 と表される。軽量気泡コンクリートパネル場合、重量床
衝撃音として最も遮音性を向上させたいのは60Hz近
傍での、騒音である。通常1/3オクターブバンドでの
測定を考えて、上記共振周波数f0を30Hzに設定す
ることを考える。軽量気泡コンクリートとして、例えば
前述の密度0.6g/m3、重量65kgのパネルに、
付加質量として20kgの鋼鉄製プレートを用いるとす
れば、バネ定数を7.1×103N/m程度に調整すれ
ば、共振周波数f0として30Hzを得ることができ
る。
The relationship between the additional mass 6 and the physical properties of the elastic body 5 will be briefly described. Assuming that the mass of the additional mass 6 is M (kg) and the spring constant of the elastic body 5 is K (N / m), the additional mass M
The resonance frequency f 0 (Hz) is expressed as f 0 = (1 / 2π) × (K / M) 1/2 in the theory of vibration. In the case of a lightweight cellular concrete panel, it is the noise near 60 Hz that is most desired to improve the sound insulation as a heavy floor impact sound. Usually consider measurements at 1/3 octave band, considering that setting the resonance frequency f 0 to 30 Hz. As lightweight cellular concrete, for example, the above-mentioned panel with a density of 0.6 g / m 3 and a weight of 65 kg
Assuming that a steel plate of 20 kg is used as the additional mass, a resonance frequency f 0 of 30 Hz can be obtained by adjusting the spring constant to about 7.1 × 10 3 N / m.

【0030】図6は、本発明の第2の態様を示すもので
ある。(a)は、長孔1aが、軽量気泡コンクリートパ
ネル短辺方向に、巾の1/2以上の長さを有して設けら
れており、係止杆2が、隣接するパネルを貫通するよう
に差し込まれている状態である。(b)は、長孔1a
が、短辺方向に貫通するように設けられ、係止杆2が、
隣接するパネル3枚を貫通するように差し込まれてい
る。(c)は、長孔1aがパネルの長辺方向に、長辺方
向巾の1/2以上の長さで設けられており、係止杆2
が、隣接するパネルを貫通するように差し込まれている
状態である。いずれの状態においても、複数の軽量気泡
コンクリートパネルが係止杆2によって、一体化されて
おり、重量床衝撃に対して高い抵抗力を有するために、
より優れた遮音性を示す床構造となる。
FIG. 6 shows a second embodiment of the present invention. (A), the long hole 1a is provided in the short side direction of the lightweight cellular concrete panel so as to have a length of 以上 or more of the width, and the locking rod 2 penetrates the adjacent panel. It is in the state inserted in. (B) is a long hole 1a
Are provided so as to penetrate in the short side direction.
It is inserted so as to penetrate three adjacent panels. (C), the long hole 1a is provided in the long side direction of the panel so as to have a length equal to or more than 1 / of the width in the long side direction.
Is in a state of being inserted so as to penetrate an adjacent panel. In any state, a plurality of lightweight cellular concrete panels are integrated by the locking rod 2 and have high resistance to heavy floor impact.
The floor structure will show better sound insulation.

【0031】[0031]

【発明の効果】上述したように、本発明は、軽量気泡コ
ンクリートからなる床構造に対して、 1. 高度な遮音性能を発揮する比較的重い付加質量か
らなる動吸振動器を確実に取り付けることのできる構造
を提供し、かつその取り付け構造は長期間に渡って高度
な遮音性能を維持でき、なお取り付けも簡便で施工性に
優れている。 2. 係止杆による鉄筋補強効果と、係止杆と動吸振動
器取り付け部材とのサンドイッチ構造による軽量気泡コ
ンクリートの曲げ剛性向上効果を有し、遮音性能、特に
重量床衝撃音の遮音性に優れた経済的な床構造を提供す
る。
As described above, the present invention relates to a floor structure made of lightweight cellular concrete. Provides a structure that can reliably mount a dynamic absorber with a relatively heavy additional mass that exhibits high sound insulation performance, and its mounting structure can maintain high sound insulation performance for a long period of time. Is simple and has excellent workability. 2. It has the effect of reinforcing the reinforcing bar with the locking rod and the effect of improving the bending rigidity of lightweight cellular concrete with the sandwich structure of the locking rod and the mounting member for the dynamic vibration absorber, and has excellent sound insulation performance, especially sound insulation of heavy floor impact sound. Provides an economic floor structure.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の実施例による動吸振器付き軽量気泡コ
ンクリート床パネルの斜視図。
FIG. 1 is a perspective view of a lightweight cellular concrete floor panel with a dynamic vibration absorber according to an embodiment of the present invention.

【図2】本発明の実施例による動吸振器付き軽量気泡コ
ンクリート床パネルの断面図。
FIG. 2 is a cross-sectional view of a lightweight cellular concrete floor panel with a dynamic vibration absorber according to an embodiment of the present invention.

【図3】実施例の要部の一部切欠斜視図。FIG. 3 is a partially cutaway perspective view of a main part of the embodiment.

【図4】実施例の構成を施工手順により説明する説明
図。
FIG. 4 is an explanatory diagram illustrating the configuration of the embodiment by a construction procedure.

【図5】本発明に使用される取付金具の一例を示す平面
図。
FIG. 5 is a plan view showing an example of a mounting bracket used in the present invention.

【図6】本発明の別の実施態様を説明する図であり、隣
接パネルの係止杆による一体化の例を示す平面図。
FIG. 6 is a view for explaining another embodiment of the present invention, and is a plan view showing an example of integration of the adjacent panels by a locking rod.

【符号の説明】[Explanation of symbols]

1・・・・軽量気泡コンクリートパネル 1a・・・長孔 1b・・・座くり孔 1c・・・パネル下階側表面 1d・・・パネル小口面 2・・・・係止杆 3・・・・動吸振動器取り付け部材 4・・・・取付金具 4a・・・係合孔 4b・・・係止用ネジ 5・・・・弾性材 6・・・・付加質量 7・・・・ナット 8・・・・バネ座金 1 ··· Lightweight cellular concrete panel 1a · · · Long hole 1b · · · Counterbore hole 1c · · · Panel lower floor side surface 1d · · · Panel small mouth surface 2 ··· Locking rod 3 ··· · Dynamic vibration absorber attachment member 4 · · · Mounting bracket 4a · · · Engaging hole 4b · · · Locking screw 5 · · · Elastic material 6 · · · Additional mass 7 · · · · Nut 8 .... Spring washers

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 動吸振器が取り付けられてなる床構造に
おいて、 1. 床は敷設された軽量気泡コンクリートパネルから
構成されている、 2. 該軽量気泡コンクリートパネルの小口面には、そ
の小口面と垂直に該小口面から相対する小口面までの長
さの少なくとも半分以上の長さを有する長孔が設けら
れ、パネル下面には前記長孔に連通する座くり孔が設け
られており、この座くり孔へ基端に係合孔、先端に係止
用ネジを有する取付金具の基端を差込み、前記長孔に差
し込んだ係止杆を該取付金具の係合孔に差し通して取付
金具が係止されている、 3. 動吸振器の取り付け部材が、前項2の取付金具の
先端係止用ネジに連結されている、ことを特徴とする遮
音性軽量気泡コンクリート床構造。
In a floor structure to which a dynamic vibration absorber is attached, The floor consists of laid lightweight cellular concrete panels; The fore face of the lightweight cellular concrete panel is provided with a long hole having a length perpendicular to the fore face and at least half of the length from the fore face to the fore face, and the panel lower surface is provided with the elongated hole. A counterbore communicating with the hole is provided, a base of a mounting bracket having an engagement hole at a base end and a locking screw at a tip is inserted into the counterbore, and a locking rod inserted into the elongated hole. 2. The mounting bracket is locked by passing through the engaging hole of the mounting bracket. A sound-insulating lightweight cellular concrete floor structure, wherein a mounting member of the dynamic vibration absorber is connected to a tip locking screw of the mounting bracket of item 2 above.
【請求項2】 係止杆が少なくとも隣接する2枚のパネ
ルを貫通するごとく、該長孔に差し込まれていることを
特徴とする請求項1に記載の遮音性軽量気泡コンクリー
ト床構造。
2. The sound-insulating lightweight cellular concrete floor structure according to claim 1, wherein the locking rod is inserted into the elongated hole so as to penetrate at least two adjacent panels.
JP2001001784A 2001-01-09 2001-01-09 Sound insulation lightweight cellular concrete floor structure Expired - Lifetime JP4471502B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001001784A JP4471502B2 (en) 2001-01-09 2001-01-09 Sound insulation lightweight cellular concrete floor structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001001784A JP4471502B2 (en) 2001-01-09 2001-01-09 Sound insulation lightweight cellular concrete floor structure

Publications (2)

Publication Number Publication Date
JP2002206302A true JP2002206302A (en) 2002-07-26
JP4471502B2 JP4471502B2 (en) 2010-06-02

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ID=18870378

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Country Link
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006028845A (en) * 2004-07-14 2006-02-02 Tokai Rubber Ind Ltd Floor structure
JP2006037399A (en) * 2004-07-23 2006-02-09 Tokai Rubber Ind Ltd Floor structure
GB2446640A (en) * 2007-02-14 2008-08-20 John Graham Bryant An acoustic attenuation device
JP2009191468A (en) * 2008-02-12 2009-08-27 Bridgestone Corp Floor-supporting and vibration-absorbing implement and floor structure
JP2014077268A (en) * 2012-10-10 2014-05-01 Clion Co Ltd Sound insulation floor structure for lightweight cellular concrete panel
CN112746702A (en) * 2021-02-23 2021-05-04 中国矿业大学 Floor structure composed of assembly boxes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5910881B2 (en) * 2012-07-09 2016-04-27 積水ハウス株式会社 Constrained vibration damping plate mounting structure

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006028845A (en) * 2004-07-14 2006-02-02 Tokai Rubber Ind Ltd Floor structure
JP2006037399A (en) * 2004-07-23 2006-02-09 Tokai Rubber Ind Ltd Floor structure
GB2446640A (en) * 2007-02-14 2008-08-20 John Graham Bryant An acoustic attenuation device
GB2446640B (en) * 2007-02-14 2011-06-01 John Graham Bryant Attenuator
JP2009191468A (en) * 2008-02-12 2009-08-27 Bridgestone Corp Floor-supporting and vibration-absorbing implement and floor structure
JP2014077268A (en) * 2012-10-10 2014-05-01 Clion Co Ltd Sound insulation floor structure for lightweight cellular concrete panel
CN112746702A (en) * 2021-02-23 2021-05-04 中国矿业大学 Floor structure composed of assembly boxes

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