JP4540208B2 - Ceiling structure and building - Google Patents

Ceiling structure and building Download PDF

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Publication number
JP4540208B2
JP4540208B2 JP2000312158A JP2000312158A JP4540208B2 JP 4540208 B2 JP4540208 B2 JP 4540208B2 JP 2000312158 A JP2000312158 A JP 2000312158A JP 2000312158 A JP2000312158 A JP 2000312158A JP 4540208 B2 JP4540208 B2 JP 4540208B2
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Prior art keywords
ceiling
floor
attached
weight member
vibration
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JP2002121856A (en
Inventor
貴弘 有我
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Sekisui Chemical Co Ltd
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Sekisui Chemical Co Ltd
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Description

【０００１】
【発明の属する技術分野】
この発明は、階上の重量床衝撃音振動モードの振動を天井で分散させ、階下への重量床衝撃音を低減させた天井構造、及びそのような天井構造を備えた建物に関する。
【０００２】
【従来の技術】
建物の階下への重量床床衝撃音を低減するのに、階上の床小梁間に板材もしくは天井吊り材の上面や側面に錘部材を取り付け、階上の重量床衝撃音の振動モードの振動を分散させて階下への重量床衝撃音を低減させることが提案されている（特開平３−６９７４５号公報、特開平３−６９７４６号公報等）。
【０００３】
【発明が解決しようとする課題】
上記の天井構造においては、吊り材の下に剛性の低い天井野縁が必要となり、部品数が増え、また、この天井野縁が床内の空間に配管等を配備するのに妨げとなるものであった。
【０００４】
この発明は、上記の点に鑑みてなされたものであり、部品数が増えることなく、また、床内の空間での配管の妨げとならずに、階上の重量床衝撃音振動モードの振動を天井で分散させて階下への重量床衝撃音を低減させた天井構造及び建物を提供することを目的とする。
【０００５】
【課題を解決するための手段】
請求項１記載の発明の天井構造は、天井を構成する天井パネルの野縁に錘部材を取着しているとともに、野縁に錘部材を取着した天井パネルの周縁部が防振ゴムを介して床根太に取着されていることを特徴としている。
【０００６】
請求項２記載の発明の天井構造は、請求項１記載の天井構造において、野縁が溝形鋼からなり、この溝形鋼の溝内に錘部材を内蔵して取着したことを特徴としている。
【０００８】
請求項３記載の発明の建物は、請求項１又は２記載の天井構造を備えていることを特徴としている。
【０００９】
（作用）
請求項１又は２記載の発明の天井構造にあっては、天井パネルの野縁に取着した錘部材によって、階上の重量床衝撃音振動モードの振動が天井パネルで分散して、階下への重量床衝撃音を低減させることになり、錘部材が天井パネルの野縁に取着されているので、その錘部材を取り付けるための部品数が増えることなく、また、床部内の空間が全く閉鎖されないので、床部内での配管の妨げとならない。
さらに、錘部材を取着した天井パネルの周縁部が防振ゴムを介して床根太に取着されているので、天井パネルにおける振動分散がより有効になされ、錘部材による重量床衝撃音の低減効果がさらに向上する。
【００１０】
さらに、請求項２記載の発明の天井構造にあっては、野縁が溝形鋼からなるので、錘部材を野縁の溝内に内蔵させて容易かつ確実に取着することができる。
【００１２】
また、請求項３記載の発明の建物においては、請求項１又は２記載の天井構造を備えているので、階上の重量床衝撃音振動モードの振動が天井で分散して、階下への重量床衝撃音が低減し、階下の居住性が向上する。
【００１３】
【発明の実施の形態】
この発明の実施の形態を図面の実施例に基づいて説明する。
【００１４】
図１は、この発明の天井構造を示すもので、階上の床と階下の天井との接続部を示す説明図、図２は図１の天井部の接続部の拡大説明図、図３は、図２のＡ−Ａ断面図、図４は、天井部を構成する天井パネルの骨格説明図である。
【００１５】
図１〜図４において、１は階上の床部、２は床根太、３は階下の天井部、４は天井吊り金具、５１及び５２は防振ゴム、７は錘部材である。
【００１６】
階上の床部１は、床パネル１１、床材１２等からなり、床パネル１１が床根太２に支持され、この床パネル１１上に床材１２が取り付けられている。
【００１７】
階下の天井部３は、天井パネル３１、天井材３２等からなり、天井パネル３１が天井吊り金具４によって床根太２に取り付けられ、天井パネル３１の下面に強化石膏ボードの天井面材３２が取り付けられている。
【００１８】
天井パネル３１の骨格は、図４に示すように、リップ溝形鋼等の形鋼からなる長さ４５５０ｍｍの横の外枠３１１と、同様にリップ溝形鋼等の形鋼からなる長さ２２５０ｍｍの縦の外枠３１２とによって長方形に組まれ、この横の外枠３１１間にほぼ等間隔に９本のリップ溝形鋼等の溝形鋼からなる野縁３１３が架け渡されて構成されている。
【００１９】
そして、９本の野縁３１３のうち、外側のイ、リの位置にある野縁３１３と、中央部のニ、ヘの位置にある野縁３１３の４本の野縁３１３の溝内に、図３に示すように、それぞれ３〜３０ｋｇの錘部材７を内蔵させることにより取着している。
【００２０】
上記の天井パネル３１においては、錘部材がないときには、イ、リ、ニ、ヘの位置の野縁３１３で振動モードの節になるので、この位置の野縁３１３に錘部材７を内蔵させている（図４（Ａ）参照）。
なお、天井材３２は、図示していないが、野縁３１３間に取り付けられた天井材受け鉄板に取り付けられることになる。
【００２１】
天井パネル３１は、天井吊り金具４によって床根太２に取り付けられている。天井吊り金具４は、それぞれＬ字形板体の床根太側吊り金具４１と天井側吊り金具４２とからなり、一方の床根太側吊り金具４１が床根太２に釘４１１で固着され、他方の天井側吊り金具４２が天井パネル３１の横の外枠３１１に溶接、リベット、ボルト・ナット等で固着されている。
【００２２】
そして、床根太側吊り金具４１と天井側吊り金具４２とは、２枚の防振ゴム５１、５２を介してボルト６１・ナット６２で接続されている。
この防振ゴム５１、５２については、バネ定数：３０ｋＮ／ｍ〜５００ｋＮ／ｍ、取付ピッチ：４５５ｍｍ〜１８２０ｍｍ、厚み５ｍｍ〜４０ｍｍのものを用いた。
このように、天井パネル３１の周縁部が防振ゴム５１、５２を介して床根太２に取着されていることによって、天井パネルの周囲が防振ゴム５１、５２による点固定で支えることになって、より有効な振動分散ができるようになっている。
【００２３】
ところで、４５５０ｍｍ×２２５０ｍｍの天井パネルにおいて、錘部材を取着しない場合には、振動モードは図４（Ａ）に示すように、位置イ、ニ、ヘ、リの各野縁で振動の節になっていた（ｆ＝５６．６Ｈｚ）。
【００２４】
これに対し、天井パネル３１の位置イ、ニ、ヘ、リの各野縁３１３の溝のほぼ中央部に、長さ２２５０ｍｍの棒状鉄製の錘部材７を内蔵させて前記実施例のような天井構造としたとき、天井パネル３１の振動モードは図４（Ｂ）に示すように変化し、より有効に振動分散がなされていた（ｆ＝４７．９Ｈｚ）。
【００２５】
そして、建物の試作棟のモーダル測定によると、各測定ポイントにおける振動レベルは図６に示すとおりであり（ポイント１３での振動加速度の最大値を１とする）、位置イ、ニ、ヘ、リの各野縁３１３の溝に錘部材７を内蔵させたこの発明の実施例の場合には、振動分散が有効になされることが分かる。そして、ＬＨとしては、６３Ｈｚでは８８ｄＢから８４ｄＢに減少した。
【００２６】
【発明の効果】
請求項１又は２記載の発明の天井構造にあっては、天井パネルの野縁に取着した錘部材によって、階上の重量床衝撃音振動モードの振動が天井パネルで分散して、階下への重量床衝撃音を低減させることになり、錘部材が天井パネルの野縁に取着されているので、その錘部材を取り付けるための部品数が増えることなく、また、床部内の空間が全く閉鎖されないので、床部内での配管の妨げとならない。
さらに、錘部材を取着した天井パネルの周縁部が防振ゴムを介して床根太に取着されているので、天井パネルにおける振動分散がより有効になされ、錘部材による重量床衝撃音の低減効果がさらに向上する。
【００２７】
さらに、請求項２記載の発明の天井構造にあっては、野縁が溝形鋼からなるので、錘部材を野縁の溝内に内蔵させて容易かつ確実に取着することができる。
【００２９】
また、請求項３記載の発明の建物においては、請求項１又は２記載の天井構造を備えているので、階上の重量床衝撃音振動モードが天井で分散して、階下への重量床衝撃音が低減し、階下の居住性が向上する。
【図面の簡単な説明】
【図１】この発明の天井構造を示すもので、階上の床と階下の天井との接続部を示す説明図である。
【図２】図１の天井部の接続部の拡大説明図である。
【図３】図２のＡ−Ａ断面図である。
【図４】天井部を構成する天井パネルの骨格説明図である。
【図５】天井パネルの振動モードを示す解析図である。
【図６】天井パネルの各測定ポイントにおける振動レベルを示すグラフである。
【符号の説明】
【０００１】
１ 階上の床部
１１ 床パネル
１２ 床材
２ 床根太
３ 階下の天井部
３１ 天井パネル
３１１、３１２ 外枠
３１３ 野縁
３２ 天井材
４ 天井吊り金具
５１、５２ 防振ゴム
７ 錘部材[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ceiling structure in which vibrations in a heavy floor impact sound vibration mode on the floor are dispersed on the ceiling and a heavy floor impact sound on the lower floor is reduced, and a building including such a ceiling structure.
[0002]
[Prior art]
To reduce heavy floor impact sound to the floor of the building, weight members are attached to the upper and side surfaces of the plate or ceiling suspension material between the floor beams on the floor, and vibration in the vibration mode of heavy floor impact sound on the floor Has been proposed to reduce the heavy floor impact sound downstairs (JP-A-3-69745, JP-A-3-69746, etc.).
[0003]
[Problems to be solved by the invention]
In the ceiling structure described above, a ceiling stiff edge with low rigidity is required under the suspension material, which increases the number of parts, and this ceiling steep edge hinders the installation of piping etc. in the space in the floor. Met.
[0004]
The present invention has been made in view of the above points, and does not increase the number of parts, and does not hinder piping in the space in the floor. An object of the present invention is to provide a ceiling structure and a building in which a heavy floor impact sound to the downstairs is reduced by dispersing the ceiling on the ceiling.
[0005]
[Means for Solving the Problems]
In the ceiling structure according to the first aspect of the present invention, the weight member is attached to the field edge of the ceiling panel constituting the ceiling, and the periphery of the ceiling panel having the weight member attached to the field edge is provided with the vibration-proof rubber. It is characterized by being attached to the floor joists .
[0006]
The ceiling structure of the invention according to claim 2 is characterized in that, in the ceiling structure according to claim 1, the field edge is made of grooved steel, and a weight member is built in and attached to the groove of the grooved steel. Yes.
[0008]
A building according to a third aspect of the invention is characterized by including the ceiling structure according to the first or second aspect.
[0009]
(Function)
In the ceiling structure according to the first or second aspect of the present invention, the weight member attached to the edge of the ceiling panel causes the vibration of the heavy floor impact sound vibration mode on the floor to be dispersed on the ceiling panel, and to the lower floor. The weight floor impact sound is reduced, and the weight member is attached to the field edge of the ceiling panel, so the number of parts for attaching the weight member does not increase, and the space in the floor portion is completely Since it is not closed, it does not hinder the piping in the floor.
In addition, since the peripheral edge of the ceiling panel to which the weight member is attached is attached to the floor joist via the anti-vibration rubber, vibration dispersion in the ceiling panel is made more effective, and the weight floor impact sound is reduced by the weight member. The effect is further improved.
[0010]
Furthermore, in the ceiling structure according to the second aspect of the present invention, since the field edge is made of grooved steel, the weight member can be built in the field edge groove and can be easily and reliably attached.
[0012]
In addition, since the building of the invention according to claim 3 has the ceiling structure according to claim 1 or 2 , the vibration of the heavy floor impact sound vibration mode on the floor is dispersed on the ceiling, and the weight to the downstairs The floor impact sound is reduced, and the comfort of downstairs is improved.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described based on examples of the drawings.
[0014]
FIG. 1 shows the ceiling structure of the present invention, and is an explanatory view showing a connecting portion between the upper floor and the lower ceiling, FIG. 2 is an enlarged explanatory view of the connecting portion of the ceiling portion in FIG. 1, and FIG. FIG. 4 is a cross-sectional view taken along the line AA in FIG. 2, and FIG.
[0015]
1-4, 1 is a floor part on the floor, 2 is a floor joist, 3 is a ceiling part on the floor, 4 is a ceiling hanging bracket, 51 and 52 are anti-vibration rubbers, and 7 is a weight member.
[0016]
The floor portion 1 on the floor includes a floor panel 11, a floor material 12, and the like. The floor panel 11 is supported by the floor joists 2, and the floor material 12 is attached on the floor panel 11.
[0017]
The lower ceiling part 3 is composed of a ceiling panel 31, a ceiling material 32, and the like. The ceiling panel 31 is attached to the floor joists 2 by the ceiling hanger 4, and the ceiling face material 32 of the reinforced gypsum board is attached to the lower surface of the ceiling panel 31. It has been.
[0018]
As shown in FIG. 4, the skeleton of the ceiling panel 31 includes a horizontal outer frame 311 having a length of 4550 mm made of a shape steel such as a lip groove shape steel, and a length of 2250 mm similarly made of a shape steel such as a lip groove shape steel. A vertical outer frame 312 and a horizontal outer frame 311 are formed into a rectangular shape. Between the horizontal outer frames 311, field edges 313 made of channel steel such as nine lip channel steel are bridged at substantially equal intervals. Yes.
[0019]
And among the nine field edges 313, in the grooves of the four field edges 313, the field edge 313 at the position of the outside b, and the field edge 313 at the position of the center, d, f, As shown in FIG. 3, each 3 to 30 kg weight member 7 is built in and attached.
[0020]
In the above-described ceiling panel 31, when there is no weight member, the vibration mode node is formed at the field edge 313 at positions a, r, d, and f, so that the weight member 7 is built in the field edge 313 at this position. (See FIG. 4A).
Although not shown, the ceiling material 32 is attached to a ceiling material receiving iron plate attached between the field edges 313.
[0021]
The ceiling panel 31 is attached to the floor joist 2 by a ceiling hanging bracket 4. The ceiling hanging bracket 4 is composed of a floor joist side hanging bracket 41 and a ceiling side hanging bracket 42, each of which is an L-shaped plate body. The side hanger 42 is fixed to the outer frame 311 next to the ceiling panel 31 by welding, rivets, bolts / nuts, or the like.
[0022]
The floor joist-side hanging bracket 41 and the ceiling-side hanging bracket 42 are connected by bolts 61 and nuts 62 via two anti-vibration rubbers 51 and 52.
As the anti-vibration rubbers 51 and 52, those having a spring constant of 30 kN / m to 500 kN / m, an attachment pitch of 455 mm to 1820 mm, and a thickness of 5 mm to 40 mm were used.
As described above, the periphery of the ceiling panel 31 is attached to the floor joist 2 via the vibration isolating rubbers 51 and 52, so that the periphery of the ceiling panel is supported by point fixing by the vibration isolating rubbers 51 and 52. Thus, more effective vibration dispersion can be achieved.
[0023]
By the way, when the weight member is not attached to the ceiling panel of 4550 mm × 2250 mm, as shown in FIG. (F = 56.6 Hz).
[0024]
On the other hand, a rod-shaped iron weight member 7 having a length of 2250 mm is built in substantially the center of the groove of each of the field edges 313 of the ceiling panel 31 at positions a, d, f, and r, and the ceiling as in the above embodiment. When the structure was adopted, the vibration mode of the ceiling panel 31 changed as shown in FIG. 4B, and vibration distribution was more effectively performed (f = 47.9 Hz).
[0025]
According to the modal measurement of the prototype building of the building, the vibration level at each measurement point is as shown in FIG. 6 (the maximum value of the vibration acceleration at the point 13 is 1), and the positions i, d, f, r In the case of the embodiment of the present invention in which the weight member 7 is built in the groove of each of the field edges 313, it can be seen that vibration dispersion is effectively performed. And as LH, it decreased from 88 dB to 84 dB at 63 Hz.
[0026]
【The invention's effect】
In the ceiling structure according to the first or second aspect of the present invention, the weight member attached to the edge of the ceiling panel causes the vibration of the heavy floor impact sound vibration mode on the floor to be dispersed on the ceiling panel, and to the lower floor. The weight floor impact sound is reduced, and the weight member is attached to the field edge of the ceiling panel, so the number of parts for attaching the weight member does not increase, and the space in the floor portion is completely Since it is not closed, it does not hinder the piping in the floor.
In addition, since the peripheral edge of the ceiling panel to which the weight member is attached is attached to the floor joist via the anti-vibration rubber, vibration dispersion in the ceiling panel is made more effective, and the weight floor impact sound is reduced by the weight member. The effect is further improved.
[0027]
Furthermore, in the ceiling structure according to the second aspect of the present invention, since the field edge is made of grooved steel, the weight member can be built in the field edge groove and can be easily and reliably attached.
[0029]
Further, since the building of the invention according to claim 3 is provided with the ceiling structure according to claim 1 or 2 , the heavy floor impact sound vibration mode on the floor is dispersed on the ceiling, and the heavy floor impact to the downstairs. The sound is reduced and the comfort of downstairs is improved.
[Brief description of the drawings]
FIG. 1 shows a ceiling structure according to the present invention, and is an explanatory view showing a connecting portion between an upper floor and a lower ceiling.
FIG. 2 is an enlarged explanatory view of a connection portion of the ceiling portion of FIG.
3 is a cross-sectional view taken along the line AA in FIG.
FIG. 4 is a skeleton explanatory diagram of a ceiling panel constituting a ceiling part.
FIG. 5 is an analysis diagram showing a vibration mode of the ceiling panel.
FIG. 6 is a graph showing the vibration level at each measurement point on the ceiling panel.
[Explanation of symbols]
[0001]
Floor portion 11 on the first floor Floor panel 12 Floor material 2 Floor joist 3 Ceiling portion 31 on the lower floor Ceiling panel 311, 312 Outer frame 313 Field edge 32 Ceiling material 4 Ceiling hanger 51, 52 Anti-vibration rubber 7 Weight member

Claims (3)

天井を構成する天井パネルの野縁に錘部材を取着しているとともに、
野縁に錘部材を取着した天井パネルの周縁部が防振ゴムを介して床根太に取着されていることを特徴とする天井構造。A weight member is attached to the edge of the ceiling panel that constitutes the ceiling ,
A ceiling structure characterized in that a peripheral edge of a ceiling panel having a weight member attached to a field edge is attached to a floor joist through a vibration-proof rubber . 野縁が溝形鋼からなり、この溝形鋼の溝内に錘部材を内蔵して取着したことを特徴とする請求項１記載の天井構造。  The ceiling structure according to claim 1, wherein the field edge is made of channel steel, and a weight member is built in and attached to the channel of the channel steel. 請求項１又は２記載の天井構造を備えていることを特徴とする建物。A building comprising the ceiling structure according to claim 1 .
JP2000312158A 2000-10-12 2000-10-12 Ceiling structure and building Expired - Fee Related JP4540208B2 (en)

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JP6480220B2 (en) * 2015-03-17 2019-03-06 積水化学工業株式会社 Vibration control device
JP7235192B2 (en) * 2018-03-16 2023-03-08 トヨタホーム株式会社 Support structure for ceiling panel and unit building
JP7063058B2 (en) * 2018-03-30 2022-05-09 日本製鉄株式会社 Joist lumber and ceiling structure
CN113776242A (en) * 2021-10-18 2021-12-10 安徽美芝精密制造有限公司 Liquid storage device assembly, compressor assembly and refrigeration equipment

Citations (3)

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Publication number Priority date Publication date Assignee Title
JPH0449355A (en) * 1990-06-16 1992-02-18 Naka Ind Ltd Support structure and support hardware for ceiling base
JPH09328858A (en) * 1996-06-10 1997-12-22 Kawasaki Steel Corp Floor vibration damper and floor structure having floor vibration damper thereof and being made of steel
JP2000045445A (en) * 1998-07-28 2000-02-15 Sekisui Chem Co Ltd Floor structure and unit structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0449355A (en) * 1990-06-16 1992-02-18 Naka Ind Ltd Support structure and support hardware for ceiling base
JPH09328858A (en) * 1996-06-10 1997-12-22 Kawasaki Steel Corp Floor vibration damper and floor structure having floor vibration damper thereof and being made of steel
JP2000045445A (en) * 1998-07-28 2000-02-15 Sekisui Chem Co Ltd Floor structure and unit structure

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