JP4278224B2 - Floor structure - Google Patents
Floor structure Download PDFInfo
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- JP4278224B2 JP4278224B2 JP08238299A JP8238299A JP4278224B2 JP 4278224 B2 JP4278224 B2 JP 4278224B2 JP 08238299 A JP08238299 A JP 08238299A JP 8238299 A JP8238299 A JP 8238299A JP 4278224 B2 JP4278224 B2 JP 4278224B2
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- cellular concrete
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- 239000011381 foam concrete Substances 0.000 claims description 42
- 239000004570 mortar (masonry) Substances 0.000 claims description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000009413 insulation Methods 0.000 description 10
- 230000000903 blocking effect Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009408 flooring Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000001902 propagating effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 208000029152 Small face Diseases 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Description
【０００１】
【発明の属する技術分野】
本発明は軽量気泡コンクリートパネルを用いた鉄骨系住宅の重量床衝撃音の遮断性能に優れた上階の床構造に関する。
【０００２】
【従来の技術】
近年、一般住宅において上階で発生する重量床衝撃音が下階に伝播するのを抑制するために、床パネルとその目地との全上面にモルタルを打設している。軽量気泡コンクリートパネルを用いた鉄骨系住宅の上階の床構造の主要部分は図４に示すようにＨ型梁５６の上面に軽量気泡コンクリートパネル５１を載置し、そのパネル間の隙間にモルタル５９を挿入し目地とし、更にその上面全体に増打モルタル６０を打設している。そしてその表面はフローリングで仕上げられている。なお、天井側はＨ型梁から野縁等を介して石膏ボードを吊り、これにクロスを貼り仕上げられていた。
【０００３】
さらに高い性能を要求される場合、上面のモルタルを厚くしないでその効果を発揮させる方法として目地部分において軽量気泡コンクリートパネルとＨ型梁と目地モルタルを一体化させ、この部分を剛体化させる方法が知られている。しかしながらＨ型梁５６とモルタル５９と軽量気泡コンクリートパネル５１との関係が上記構造では、目地になる軽量気泡コンクリートパネル５１間の隙間にモルタルを完全に充填させることが作業上難しい上に、Ｈ型梁５６とモルタル５９の付着面積が少ないためＨ型梁５６と軽量気泡コンクリートパネル５１との一体性は極めて乏しかった。
【０００４】
その結果、上面のモルタルを厚くしないでその性能を高めることができなかった。
【０００５】
【発明が解決しようとする課題】
本発明は、階上で発生する重量床衝撃音が下階に伝播するのを遮断するために、床天井間の寸法を従来より大にすることなく、かつ従来以上の遮断性能を発揮できる構造として目地部分のＨ型梁と軽量気泡コンクリートパネル、特にＡＬＣパネルとの一体化した構造を有する床構造を提供することを目的としている。
【０００６】
【発明を解決するための手段】
上記課題を解決するための本発明の床構造の特徴は、軽量気泡コンクリートパネルの端部をリブ付受金具に載置し、該リブ付受金具のリブ部分を鉄骨Ｈ型梁に固定した床構造であって、前記鉄骨Ｈ型梁のウエブに、軽量気泡コンクリートパネル載置部分を横片とする長尺のＬ型金具であり且つ該長尺状のＬ型金具の縦片の頂部が前記鉄骨Ｈ型梁の上面と同一高さとなり、さらに、軽量気泡コンクリートパネルを載置したとき該軽量気泡コンクリートの下面が該鉄骨Ｈ型梁の上面よりも低くなるようにリブ付受金具のリブ部分が固定され、該リブ部分は、Ｌ型金具の横片の先端縁まで延設されて当該横片を基端から先端に亘って支持すると共に該横片に支持される軽量気泡コンクリートパネルの端部を支持し、且つ、該横片の先端部から前記鉄骨Ｈ型梁の下部に向かうにつれて縁部が前記鉄骨Ｈ型梁のウエブに近接する傾斜状に形成され、さらに、前記Ｌ型金具の縦片に対向する位置及び傾斜状の縁部の下端部と対向する位置が前記ウェブにボルト締結されており、目地となる該軽量気泡コンクリートパネルの小口面全面と該鉄骨Ｈ型梁上面全面との間にモルタルが充填され、さらに、該目地および該軽量気泡コンクリートパネルの上面の全面に増打モルタルが打設された床構造である。これにより、モルタルと軽量気泡コンクリートパネル、モルタルと鉄骨Ｈ型梁の接着面積を増大せしめることが可能になり、そしてＨ型梁にリブ付受金具が直接固定されたことで軽量気泡コンクリートパネルとＨ型梁との一体性が改善され、その結果床構造の床衝撃に対するインピーダンスを高めることができる。
【０００７】
また、構造を軽量気泡コンクリートパネルの下面が該Ｈ型梁の上面よりも低くしたことで、Ｈ型梁と軽量気泡コンクリートパネルとの間にモルタルが挟まった状態になり一体性がより改善される。また、構造を該リブ付受金具の該軽量気泡コンクリートパネル載置部分が長尺のＬ型金具であり、該リブ付受金具のリブ部分を該Ｈ型梁のウエブに固定したことで、リブ付受金具のＬ型金具の縦片およびリブ部分が固定されたＨ型梁のウエブを含めて一体化でき、軽量気泡コンクリートパネルとＨ型梁とはより一層一体性が改善される。
【０００８】
また、上記床構造の該目地と該軽量気泡コンクリートパネルとの上面の全面にモルタルを打設することにより、更に一体性が確実になるだけでなく、打設の厚さに比例して重量床衝撃音遮断性能が改善される。
【０００９】
【発明の実施の形態】
本発明の実施の形態を図面で説明する。図１は本発明の床構造の主要部分の１例の断面図、図２は図１のＨ型梁とリブ付受金具との関係を示す斜視図、図３は本発明の床構造を用いた床全体の構成を示す実施例の図、図４は本発明の図１に比した従来技術の床構造の主要部分の断面図である。
【００１０】
図１、図２について説明する。Ｈ型梁６は本発明の床構造の床梁である。このＨ型梁６のウエブ７に固定されるリブ付受金具は、ウエブに当接固定されるリブ部分の取付面５を有し、この取付面５から直角方向にリブ部分のリブ３、そのリブ３の上に軽量気泡コンクリートパネル１の端部を載置できる長尺のＬ型金具４が一体になっている。このＬ型金具４の方向はＨ型梁６に平行である。
【００１１】
軽量気泡コンクリートパネル１はその端部がＬ型金具４の横片に載置される。このとき軽量気泡コンクリートパネル１の小口面とＬ型金具４の縦片とはモルタル９が容易に完全に充填される間隙（例えば流し込めることができる程度に）にするのがよい。軽量気泡コンクリートパネル１とリブ付受金具２とＨ型梁６の位置関係を上記のようにして配置したのち、モルタル９を図１に示すように目地部分に充填する。このとき軽量気泡コンクリートパネル１の小口面１１に前処理としてプライマー塗布を行うと、小口面１１とモルタル９の付着性を上げることができる。
【００１２】
なお、モルタル９は通常の現場練モルタルが使用される。上記構成にすることによって、軽量気泡コンクリートパネル１とリブ付受金具２とＨ型梁６が従来技術記載の構成よりもより確実な一体化が可能になる。特にリブ付受金具２の介在により軽量気泡コンクリートパネル１とＨ型梁６が剛体化でき重量床衝撃音遮断性能を高めることができる。
【００１３】
上記軽量気泡コンクリートパネル１と目地であるモルタル９部分の全体上面にモルタル１０の層を設けることにより、またその層の厚さを調節することにより所望の重量床衝撃音遮断性能が得ることができる。ここで使用する増打モルタル１０は通常のセルフレベリング材でもよいし、現場練モルタルでもよい。
【００１４】
［実施例］
図３に示した床構造で重量床衝撃音遮断性能試験を行った。この床構造は図１に示した構造の上面に上層部１２としてポリスチレンフォーム（厚さ４０ｍｍ）、合板（厚さ１５ｍｍ）、床暖房用パネル（厚さ１２ｍｍ）、フローリング（厚さ１３ｍｍ）を接着剤で全面接着した。また、Ｈ型梁の下の下層部（天井側）は野縁などを介してグラスウール（厚さ５０ｍｍ）が載った石膏ボード（厚さ９．５ｍｍ）が吊られている。なお、一部防振吊金具（図には表示せず）で石膏ボードを吊っている。
【００１５】
また、軽量気泡コンクリートパネル１は厚さ１００ｍｍ、モルタル９は現場練モルタル、１０はセルフレベリング材で２０ｍｍの厚さになっている。Ｈ型梁は高さ２５０ｍｍ、上面断面幅１００ｍｍ、リブ付受金具２の取付面５の高さ１７５ｍｍ、Ｌ型金具４の断面は縦片、横片共に幅７５ｍｍである。この縦片の頂部とＨ型梁６上面とは同一高さになっている。縦片と軽量気泡コンクリートパネルの小口面の間隔は１０ｍｍになっている。リブ付受金具２のピッチは５００ｍｍ間隔になっている。
【００１６】
部屋の大きさは８畳、３階建住宅で試験した。試験方法、評価方法はＪＩＳＡ １４１８、１４１９に従った。３階の部屋に重量床衝撃音発生器で床に衝撃を加えたとき、受音室になる２階の部屋に発生する床衝撃音を測定した。その測定は中心周波数６３〜４０００Ｈｚの７段階とした。測定値は表１に比較例とあわせて示す。なお、２５０Ｈｚ以上の試験結果は、実施例、比較例共に遮音等級ＬＨが５０程度であったので表１ではデータの記載は省略した。
【００１７】
結果は表１に示したように、重量床衝撃音遮断性能（各中心周波数の測定の遮音等級の最大値）はＬＨ５２であった。すなわち、従来では重量床衝撃音遮断性能はＬＨ６５〜６０程度が限界であったのが、ＬＨ５５以下にできたのである。なお、増打モルタル１０の上の上層部１２は設けなくても、重量床衝撃音遮断性能ＬＨに変化はなかった。
【００１８】
［比較例］
図３に示した図１の部分を図４の構成に置き換えた。すなわち、リブ付受金具は使用しないで、軽量気泡コンクリートパネルをＨ型梁の上面に直接載置し、軽量気泡コンクリートパネル間隔を２０ｍｍにして、ここにモルタルを充填した。その他は実施例と同一構成にした。
【００１９】
実施例と同じ試験をした結果、重量床衝撃音遮断性能はＬＨ５９であった。
【００２０】
【表１】
【発明の効果】
本発明によれば、従来では得られなかった重量床衝撃音遮断性能を達成することができた。
【図面の簡単な説明】
【図１】本発明の構造の１例の断面図。
【図２】図１のＨ型梁とリブ付受金具との関係を示す斜視図。
【図３】本発明の床構造を用いた床全体の構成を示す実施例の断面図。
【図４】従来技術の構造の１例の断面図。
【符号の説明】
１ 軽量気泡コンクリートパネル
２ リブ付受金具
３ リブ
４ Ｌ型金具
５ 取付面
６ Ｈ型梁
７ ウエブ
９ モルタル
１０ 増打モルタル
１１ 小口面
１２ 上層部
５１ 軽量気泡コンクリートパネル
５６ Ｈ型梁
５９ モルタル
６０ 増打モルタル[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a floor structure of an upper floor excellent in the performance of blocking heavy floor impact sound of a steel-framed house using lightweight cellular concrete panels.
[0002]
[Prior art]
In recent years, mortar has been placed on the entire upper surface of the floor panel and its joints in order to prevent the heavy floor impact sound generated on the upper floor from propagating to the lower floor. The main part of the floor structure of the upper floor of a steel-framed house using lightweight cellular concrete panels is a lightweight
[0003]
When higher performance is required, the lightweight foam concrete panel, H-beam and joint mortar are integrated in the joint part as a method to exert its effect without increasing the thickness of the top mortar, and this part is made rigid. Are known. However, when the relationship between the H-
[0004]
As a result, the performance could not be improved without increasing the thickness of the top mortar.
[0005]
[Problems to be solved by the invention]
The present invention has a structure capable of exhibiting a higher blocking performance without increasing the dimension between the floor and ceiling in order to block the heavy floor impact sound generated on the floor from propagating to the lower floor. The object of the present invention is to provide a floor structure having an integrated structure of an H-shaped beam at the joint and a lightweight cellular concrete panel, particularly an ALC panel.
[0006]
[Means for Solving the Invention]
The feature of the floor structure of the present invention for solving the above problems is that the end of the lightweight cellular concrete panel is placed on a rib-attached bracket, and the rib portion of the rib-attached bracket is fixed to a steel H-shaped beam. a structure, the web of the steel H-beam, top portion of the vertical piece of lightweight cellular concrete panel is L-shaped fitting elongated the mounting portion and the lateral pieces and the elongated L-shaped bracket the becomes the upper surface and the same height as the steel H-beam, further, the rib portion of the ribbed pivot bracket as the lower surface of said light quantity cellular concrete when placing the lightweight cellular concrete panel is lower than the upper surface of the steel H-beams And the rib portion extends to the distal end edge of the horizontal piece of the L-shaped metal fitting to support the horizontal piece from the proximal end to the distal end and to support the lightweight cellular concrete panel supported by the horizontal piece. Supporting the end, and from the tip of the horizontal piece, the iron As it goes to the lower part of the H-shaped beam, an edge portion is formed in an inclined shape close to the web of the steel H-shaped beam, and further, a position facing the vertical piece of the L-shaped bracket and a lower end portion of the inclined edge portion, opposing positions are bolted to the web, mortar is filled between the small entire surface and the steel H-beam the entire upper surface of said light quantity cellular concrete panel to be joint, further said purpose locations, and said light amount bubbles It is a floor structure in which extra mortar is placed on the entire upper surface of a concrete panel. This makes it possible to increase the bonding area between mortar and lightweight cellular concrete panel, mortar and steel H-beam, and the lightweight cellular concrete panel and H The integrity with the beam is improved, so that the impedance of the floor structure to the floor impact can be increased.
[0007]
In addition, since the lower surface of the lightweight cellular concrete panel is lower than the upper surface of the H-shaped beam, the mortar is sandwiched between the H-shaped beam and the lightweight cellular concrete panel, and the integrity is further improved. . Further, the lightweight foamed concrete panel mounting portion of the rib-supported metal fitting is a long L-shaped metal fitting, and the rib portion of the rib-attached metal fitting is fixed to the web of the H-shaped beam. The L-shaped bracket of the receiving bracket can be integrated including the H-shaped beam web in which the vertical piece and the rib portion are fixed, and the light-weight cellular concrete panel and the H-shaped beam are further improved in integration.
[0008]
Further, by placing mortar over the entire upper surface of the joint of the floor structure and the lightweight cellular concrete panel, not only is the integrity even more reliable, but the weight floor is proportional to the thickness of the placement. Impulsive sound insulation performance is improved.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of an example of the main part of the floor structure of the present invention, FIG. 2 is a perspective view showing the relationship between the H-shaped beam of FIG. 1 and a receiving bracket with ribs, and FIG. 3 uses the floor structure of the present invention. FIG. 4 is a cross-sectional view of the main part of the floor structure of the prior art as compared with FIG. 1 of the present invention.
[0010]
1 and 2 will be described. The H-
[0011]
The end portion of the lightweight
[0012]
The
[0013]
By providing a layer of
[0014]
[Example]
A heavy floor impact sound insulation performance test was conducted with the floor structure shown in FIG. In this floor structure, polystyrene foam (thickness 40 mm), plywood (thickness 15 mm), floor heating panel (
[0015]
The lightweight
[0016]
The room size was tested in an 8 tatami mat, 3 story house. The test method and evaluation method followed JISA 1418 and 1419. When the floor was impacted with a heavy floor impact sound generator in the 3rd floor room, the floor impact sound generated in the 2nd floor room which was the sound receiving room was measured. The measurement was performed in seven stages with a center frequency of 63 to 4000 Hz. The measured values are shown in Table 1 together with the comparative example. Note that the test results of 250 Hz or higher have a sound insulation rating LH of about 50 in both the examples and the comparative examples, so the description of data is omitted in Table 1.
[0017]
As a result, as shown in Table 1, the heavy floor impact sound insulation performance (the maximum value of the sound insulation grade of each center frequency measurement) was LH52. In other words, the conventional heavy floor impact sound insulation performance was limited to about LH65 to 60, but has been made LH55 or less. In addition, even if the
[0018]
[Comparative example]
The part of FIG. 1 shown in FIG. 3 is replaced with the configuration of FIG. That is, without using a rib-attached metal fitting, the lightweight cellular concrete panel was directly placed on the upper surface of the H-shaped beam, the interval between the lightweight cellular concrete panels was 20 mm, and mortar was filled therein. The other configuration was the same as that of the example.
[0019]
As a result of performing the same test as that of the example, the heavy floor impact sound blocking performance was LH59.
[0020]
[Table 1]
【The invention's effect】
According to the present invention, it has been possible to achieve a heavy floor impact sound insulation performance that has not been obtained conventionally.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an example of the structure of the present invention.
FIG. 2 is a perspective view showing a relationship between the H-shaped beam of FIG. 1 and a rib-attached bracket.
FIG. 3 is a sectional view of an embodiment showing a configuration of the entire floor using the floor structure of the present invention.
FIG. 4 is a cross-sectional view of an example of a prior art structure.
[Explanation of symbols]
DESCRIPTION OF
Claims (1)
前記鉄骨Ｈ型梁のウエブに、軽量気泡コンクリートパネル載置部分を横片とする長尺のＬ型金具であり且つ該長尺状のＬ型金具の縦片の頂部が前記鉄骨Ｈ型梁の上面と同一高さとなり、さらに、軽量気泡コンクリートパネルを載置したとき該軽量気泡コンクリートの下面が該鉄骨Ｈ型梁の上面よりも低くなるようにリブ付受金具のリブ部分が固定され、
該リブ部分は、Ｌ型金具の横片の先端縁まで延設されて当該横片を基端から先端に亘って支持すると共に該横片に支持される軽量気泡コンクリートパネルの端部を支持し、且つ、該横片の先端部から前記鉄骨Ｈ型梁の下部に向かうにつれて縁部が前記鉄骨Ｈ型梁のウエブに近接する傾斜状に形成され、さらに、前記Ｌ型金具の縦片に対向する位置及び傾斜状の縁部の下端部と対向する位置が前記ウェブにボルト締結されており、
目地となる該軽量気泡コンクリートパネルの小口面全面と該鉄骨Ｈ型梁上面全面との間にモルタルが充填され、
さらに、該目地および該軽量気泡コンクリートパネルの上面の全面に増打モルタルが打設された
ことを特徴とする床構造。It is a floor structure in which an end of a lightweight cellular concrete panel is placed on a rib-attached bracket, and the rib portion of the rib-attached bracket is fixed to a steel H-beam.
The steel H-shaped beam web has a long L-shaped metal fitting with a lightweight foam concrete panel mounting portion as a horizontal piece, and the top of the vertical piece of the long L-shaped metal fitting is the steel H-shaped beam. becomes the upper surface and the same height, further, the rib portion of the lower surface is the steel H-type ribbed to be lower than the upper surface of the beam receiving brackets of said light quantity cellular concrete when placing the lightweight cellular concrete panel is fixed,
The rib portion extends to the distal end edge of the horizontal piece of the L-shaped bracket, supports the horizontal piece from the base end to the distal end, and supports the end of the lightweight cellular concrete panel supported by the horizontal piece. In addition, an edge is formed in an inclined shape so as to approach the web of the steel H-shaped beam from the front end of the horizontal piece toward the lower part of the steel H-shaped beam, and is further opposed to the vertical piece of the L-shaped metal fitting. And a position facing the lower end of the inclined edge portion is bolted to the web,
Mortar is filled between the small entire surface and the steel H-beam the entire upper surface of said light quantity cellular concrete panel to be joint,
In addition, additional mortar was placed on the entire surface of the joint and the upper surface of the lightweight cellular concrete panel.
A floor structure characterized by that .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08238299A JP4278224B2 (en) | 1999-03-25 | 1999-03-25 | Floor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08238299A JP4278224B2 (en) | 1999-03-25 | 1999-03-25 | Floor structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000274000A JP2000274000A (en) | 2000-10-03 |
| JP4278224B2 true JP4278224B2 (en) | 2009-06-10 |
Family
ID=13773046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08238299A Expired - Lifetime JP4278224B2 (en) | 1999-03-25 | 1999-03-25 | Floor structure |
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| Country | Link |
|---|---|
| JP (1) | JP4278224B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4541754B2 (en) * | 2004-05-10 | 2010-09-08 | 油化三昌建材株式会社 | Floor structure and construction method thereof |
| JP4541766B2 (en) * | 2004-06-09 | 2010-09-08 | 油化三昌建材株式会社 | Floor structure |
| JP5755912B2 (en) * | 2011-03-15 | 2015-07-29 | 旭化成ホームズ株式会社 | Vibration insulation structure and vibration insulation member |
-
1999
- 1999-03-25 JP JP08238299A patent/JP4278224B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000274000A (en) | 2000-10-03 |
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