JP2006161406A - Fire-resistant structure of ceiling or floor - Google Patents

Fire-resistant structure of ceiling or floor Download PDF

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JP2006161406A
JP2006161406A JP2004354318A JP2004354318A JP2006161406A JP 2006161406 A JP2006161406 A JP 2006161406A JP 2004354318 A JP2004354318 A JP 2004354318A JP 2004354318 A JP2004354318 A JP 2004354318A JP 2006161406 A JP2006161406 A JP 2006161406A
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ceiling
refractory face
face material
floor
refractory
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Yuji Tamagawa
祐司 玉川
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Misawa Homes Co Ltd
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Misawa Homes Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a fire-resistant structure of a ceiling or a floor capable of reducing the number of joints between upper side fire-resistant surface materials when two sheets of the fire-resistant surface materials are stackingly fitted to a wall surface, suppressing the bulk of the weight of the upper side fire-resistant surface material, setting the total thickness of the upper side fire-resistant surface material and the lower side fire-resistant surface material to a prescribed thickness, suppressing the bulk of the weight of the lower side fire-resistant surface material, and providing high fire-resistance. <P>SOLUTION: The plurality of lower side fire-resistant surface materials 8 formed in a square plate shape are installed on the ceiling, and at least two or more sheets of upper side fire-resistant surface materials 9 formed in a square plate shape are installed on a mounting surface 80 formed by these lower side fire-resistant surface materials 8. A joint treatment material having a fire-resistance is fitted to at least either of joints T1 and T2 between the lower side fire-resistant surface materials 8 adjacent to each other and joints T3 and T4 between the upper side fire-resistant surface materials 9 adjacent to each other. The upper side fire-resistant surface materials 9 are formed thinner than the lower side fire-resistant surface materials 9 and larger in area than the lower side fire-resistant surface materials 9. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、住宅などの建物の外壁面に石膏ボードなどの耐火面材を取付けてなる天井または床の耐火構造に関する。   The present invention relates to a fireproof structure for a ceiling or floor in which a fireproof surface material such as a gypsum board is attached to an outer wall surface of a building such as a house.

住宅などの建物の壁面には、通常石膏ボードなどからなる耐火面材が取付けられており、耐火性をさらに向上させるために、耐火面材を二重に取付ける場合がある。この技術の一例について、例えば、特許文献1に記載されている。
すなわち、この特許文献1に記載の技術では、間仕切壁が、上部ランナと下部ランナとの間に一定間隔で配置された複数の柱状のスタッドと、スタッドの両側にそれぞれ取付けられた二枚重ねの石膏ボード(耐火面材)とから概略構成されている。二枚重ねのうち、下側の石膏ボードはタッピングネジなどを用いてスタッドに取付けられており、上側の石膏ボードは下側の石膏ボードにステープルなどを用いて取付けられている。なお、下側の石膏ボードおよび上側の石膏ボードともその厚みは等しく、15mm程度ある。
特開2001−193182号公報(第5頁、第1図)
A refractory surface material made of gypsum board or the like is usually attached to the wall surface of a building such as a house. In order to further improve the fire resistance, the refractory surface material may be attached twice. An example of this technique is described in Patent Document 1, for example.
That is, in the technique described in Patent Document 1, the partition wall includes a plurality of columnar studs arranged at regular intervals between the upper runner and the lower runner, and two-layered gypsum boards respectively attached to both sides of the studs. (Fireproof face material). Of the two layers, the lower gypsum board is attached to the stud using a tapping screw or the like, and the upper gypsum board is attached to the lower gypsum board using staples or the like. The lower gypsum board and the upper gypsum board have the same thickness of about 15 mm.
JP 2001-193182 A (page 5, FIG. 1)

ところで、上述したように、壁面の石膏ボードなどの耐火面材を二枚重ねで取付ける場合、上側耐火面材の継目はなるべく少ない方が望ましい。それは、防火性能上、継目がなるべく少ない方が、防火上の欠点が少なくなり有効となるからである。また、上側耐火面材の表面には、最終的にクロスを貼り付けるため、耐火面材どうしの継目においては、クロスに継目に沿った筋などが入り易く、この筋などが入らないようにクロスを貼り付けるのに手間がかかるばかりか、継目に沿って切れる場合もあり、その補修に手間がかかるからでもある。
上側耐火面材どうしの継目をなるべく少なくするには、上側耐火面材を大きくすればよいが、大きくすると上側耐火面材の重量が嵩み、取り扱い難くなる。
一方、上側耐火面材の重量が嵩まないように薄くすると、この上側耐火面材と下側耐火面材との合計の厚みが薄くなり、耐火性能が低下する。
そこで、下側耐火面材の厚みを厚くすれば、上側耐火面材と下側耐火面材との合計の厚みを所定の厚みにすることができるが、下側耐火面材の重量が嵩んでしまい、取り扱い難くなる。
また、複数枚の下側耐火面材および上側耐火面材からなる構成であって、継目が形成されていることによって、該継目からの火炎の進入が懸念され、その分の耐火性能を下側耐火面材の厚みで補う必要があった。
By the way, as above-mentioned, when attaching two fireproof surface materials, such as a gypsum board of a wall surface, it is desirable that the number of the joints of an upper fireproof surface material is as few as possible. This is because, in terms of fire prevention performance, it is effective that the number of joints is as small as possible, since there are fewer defects in fire prevention. In addition, since the cloth is finally pasted on the surface of the upper refractory face material, the cross between the refractory face materials is easy to include a line along the seam, so that the cross does not enter. Not only does it take time to paste the sticker, but it may also cut along the seam, and it will take time to repair it.
In order to reduce the number of joints between the upper refractory face materials as much as possible, the upper refractory face material may be increased. However, if the upper refractory face material is increased, the weight of the upper refractory face material increases and handling becomes difficult.
On the other hand, if the weight of the upper refractory face material is reduced so as not to increase, the total thickness of the upper refractory face material and the lower refractory face material is reduced, and the fire resistance performance is lowered.
Therefore, if the thickness of the lower refractory face material is increased, the total thickness of the upper refractory face material and the lower refractory face material can be set to a predetermined thickness, but the weight of the lower refractory face material increases. It becomes difficult to handle.
Moreover, it is a structure consisting of a plurality of lower refractory face materials and upper refractory face materials, and since the seam is formed, there is a concern that a flame may enter from the seam, and the fire resistance performance corresponding to the lower side is reduced. It was necessary to compensate with the thickness of the refractory face material.

本発明は上記事情に鑑みてなされたもので、壁面に耐火面材を2枚重ねで取付ける場合に、上側耐火面材どうしの継目を少なくできるとともに、上側耐火面材の重量の嵩みを抑えることができ、さらに、上側耐火面材と下側耐火面材との合計の厚みを所定の厚みにでき、下側耐火面材の重量の嵩みを抑えることができると同時に高い耐火性を備えた天井または床の耐火構造を提供することを目的としている。   The present invention has been made in view of the above circumstances. When two refractory face materials are attached to a wall surface, the number of joints between the upper refractory face materials can be reduced and the weight of the upper refractory face material can be reduced. Furthermore, the total thickness of the upper refractory face material and the lower refractory face material can be set to a predetermined thickness, and the weight of the lower refractory face material can be suppressed, and at the same time high fire resistance is provided. It is intended to provide a fireproof structure for the ceiling or floor.

以上の課題を解決すべく、請求項1に記載の発明は、天井または床に、耐火面材を取付けてなる天井または床の耐火構造(例えば、天井の耐火構造1)であって、前記天井または床に、方形板状の複数の下側耐火面材(例えば、下側耐火面材8)が取付けられており、これら下側耐火面材8によって形成された取付面(例えば、取付面80)には、少なくとも2枚以上の方形板状の上側耐火面材(例えば、上側耐火面材9)が取付けられており、互いに隣り合う前記下側耐火面材8どうしの継目(例えば、継目T1、T2)と、互いに隣り合う前記上側耐火面材9どうしの継目(例えば、継目T3、T4)の、少なくともいずれか一方の継目に耐火性を有する目地処理材が取付けられ、前記上側耐火面材9は、前記下側耐火面材8より薄くてかつ面積が大きいことを特徴とする。   In order to solve the above problems, the invention described in claim 1 is a ceiling or floor fireproof structure (for example, a ceiling fireproof structure 1) in which a fireproof surface material is attached to the ceiling or floor, and the ceiling Alternatively, a plurality of rectangular plate-like lower refractory surface materials (for example, the lower refractory surface material 8) are attached to the floor, and an attachment surface (for example, the attachment surface 80) formed by these lower refractory surface materials 8 is attached. ), At least two or more rectangular plate-like upper refractory face materials (for example, upper refractory face material 9) are attached, and a seam (for example, a joint T1) between the lower refractory face materials 8 adjacent to each other is attached. , T2) and a joint (for example, joints T3 and T4) between the upper refractory face materials 9 adjacent to each other, a joint treatment material having fire resistance is attached to at least one of the joints, and the upper refractory face material is attached. 9 is thinner than the lower refractory face material 8 One area wherein the large.

ここで、天井または床に耐火面材を2重貼りして取付ける場合、所定の耐火性能を得るために、2枚の耐火面材を所定の厚さにする必要があるが、請求項1に記載の発明では、上側耐火面材9を薄くした分、下側耐火面材8を厚くすることによって所定の厚さを確保すればよい。   Here, in the case where the refractory face material is attached to the ceiling or the floor in a double manner, the two refractory face materials need to have a predetermined thickness in order to obtain a predetermined fire resistance performance. In the described invention, the predetermined thickness may be ensured by increasing the thickness of the lower refractory face material 8 by the thickness of the upper refractory face material 9.

また、隣り合う下側耐火面材8どうしの継目としては、例えば、図2に示すように、継目T1、T2があり、隣り合う上側耐火面材9どうしの継目としては、例えば、図3に示すように、継目T3、T4とがあるが、継目T1、T2および継目T3、T4の何れにも目地処理材を取付けることとしても良いし、継目T1および継目T3に取付けることとしても良いし、継目T1にのみ取付けることとしても構わない。   Moreover, as a joint of the adjacent lower refractory face materials 8, for example, as shown in FIG. 2, there are joints T <b> 1 and T <b> 2, and as a joint between the adjacent upper refractory face materials 9, for example, FIG. 3. As shown, there are joints T3 and T4, but the joint treatment material may be attached to any of the joints T1 and T2 and the joints T3 and T4, or may be attached to the joints T1 and T3. You may attach only to the joint T1.

請求項2に記載の発明は、請求項1に記載の天井または床の耐火構造1において、前記目地処理材が、ガラス繊維テープ(例えば、ガラス繊維テープ10)であることを特徴とする。   The invention according to claim 2 is the ceiling or floor fireproof structure 1 according to claim 1, wherein the joint treatment material is a glass fiber tape (for example, a glass fiber tape 10).

請求項3に記載の発明は、請求項1または2に記載の天井または床の耐火構造1において、前記上側耐火面材9どうしの継目T3、T4の長さの総延長は、前記下側耐火面材8どうしの継目T1、T2の長さの総延長より短くなっていることを特徴とする。   According to a third aspect of the present invention, in the ceiling or floor refractory structure 1 according to the first or second aspect, the total extension of the lengths of the joints T3 and T4 between the upper refractory face materials 9 is the lower refractory structure. It is characterized in that it is shorter than the total length of the joints T1, T2 between the face members 8.

請求項4に記載の発明は、請求項1〜3の何れか一項に記載の天井または床の耐火構造1において、前記下側耐火面材8と前記上側耐火面材9とは、それぞれ長方形板状をなしており、これら下側耐火面材8と上側耐火面材9とは、平面視において、それらの長辺どうしが直交するようにして配置されていることを特徴とする。   The invention according to claim 4 is the ceiling or floor fireproof structure 1 according to any one of claims 1 to 3, wherein the lower fireproof face material 8 and the upper fireproof face material 9 are each rectangular. The lower refractory surface material 8 and the upper refractory surface material 9 are arranged in such a manner that their long sides are orthogonal to each other in plan view.

請求項5に記載の発明は、請求項4に記載の天井または床の耐火構造1において、前記下側耐火面材8の短辺どうしの継目T1と、前記上側耐火面材9の長辺どうしの継目T4とは、平面視において一致していないことを特徴とする。   The invention according to claim 5 is the ceiling or floor fireproof structure 1 according to claim 4, wherein the joint T1 between the short sides of the lower fireproof face material 8 and the long sides of the upper fireproof face material 9 are connected. The joint T4 is not identical in plan view.

請求項6に記載の発明は、請求項4または5に記載の天井または床の耐火構造1において、前記下側耐火面材8は、短辺どうしの継目T1が、短辺方向に連続しないようにして配置されていることを特徴とする。   The invention according to claim 6 is the fireproof structure 1 of the ceiling or floor according to claim 4 or 5, wherein the lower refractory face material 8 is such that the joint T1 between the short sides is not continuous in the short side direction. It is characterized by being arranged.

請求項7に記載の発明は、請求項4〜6の何れか一項に記載の天井または床の耐火構造1において、前記下側耐火面材8の長辺の長さと、前記上側耐火面材9の短辺の長さとは、それぞれ基準寸法の整数倍となっていることを特徴とする。   The invention according to claim 7 is the ceiling or floor fireproof structure 1 according to any one of claims 4 to 6, and the length of the long side of the lower fireproof face material 8 and the upper fireproof face material. Each of the short side lengths 9 is an integral multiple of the reference dimension.

ここで、基準寸法は、建築のあらゆる部分を一定の大きさの倍数関係に整えようとするときの基準となる寸法に設定するのが望ましい。この場合、基準寸法としては、例えば910mm、455mm、1000mm、500mm等が採用される。   Here, it is desirable to set the reference dimension as a reference dimension when attempting to arrange every part of the building in a multiple relationship of a certain size. In this case, for example, 910 mm, 455 mm, 1000 mm, 500 mm or the like is adopted as the reference dimension.

請求項1に記載の発明によれば、上側対火面材9は、下側耐火面材8より薄くて且つ面積が大きいので、上側耐火面材9どうしの継目を少なくできるとともに、上側耐火面材9の重量の嵩みを抑えることができる。また、上側耐火面材9を薄くした分、下側耐火面材8を厚くすることによって、上側耐火面材9と下側耐火面材8との合計の厚さを所定の厚さにできる。さらに、下側耐火面材8の大多数は上側耐火面材9より面積が小さいので、下側耐火面材8の重量の嵩みを抑えることができる。
さらに、隣り合う下側耐火面材8どうしの継目と、隣り合う上側耐火面材9どうしの継目の少なくともいずれか一方に、耐火性を有する目地処理材が取付けられることによって、より耐火性を向上させることができ、下側耐火面材8と上側耐火面材9のいずれの継目にも目地処理材が取付けられる場合には、特に高い耐火性を実現することができる。
According to the first aspect of the present invention, since the upper fire-resistant surface material 9 is thinner and larger in area than the lower fire-resistant surface material 8, the number of joints between the upper fire-resistant surface materials 9 can be reduced, and the upper fire-resistant surface material 9 can be reduced. The bulk of the material 9 can be suppressed. Further, by making the upper refractory face material 9 thicker by making the upper refractory face material 9 thinner, the total thickness of the upper refractory face material 9 and the lower refractory face material 8 can be made a predetermined thickness. Further, since the majority of the lower refractory face material 8 has a smaller area than the upper refractory face material 9, the weight of the lower refractory face material 8 can be suppressed.
Furthermore, a fireproof joint material is attached to at least one of the joints between the adjacent lower refractory face materials 8 and the joint between the adjacent upper refractory face materials 9, thereby further improving the fire resistance. In the case where the joint treatment material is attached to any joint of the lower refractory face material 8 and the upper refractory face material 9, particularly high fire resistance can be realized.

請求項2に記載の発明によれば、耐火性を備えた目地処理材として、ガラス繊維テープ10が用いられることとなる。これにより、請求項1に記載の発明の効果が得られるのは無論のこと、特に、手間をかけることなく、簡便に天井または床の耐火性を向上させることができる。   According to invention of Claim 2, the glass fiber tape 10 will be used as a joint-treatment material provided with fire resistance. As a result, the effect of the invention according to claim 1 can be obtained, and in particular, the fire resistance of the ceiling or floor can be easily improved without taking time and effort.

請求項3に記載の発明によれば、上側耐火面材9どうしの継目T3,T4の長さの総延長が、下側耐火面材8どうしの継目T1,T2の長さの総延長より短くなっているので、防火性能上、欠点が少なくなり有効となる。
そして、上側耐火面材9どうしの継目T3,T4の長さの総延長が短いので、上側耐火面材9の大多数は、下側耐火面材8より面積が大きくなるが、上側耐火面材9は、下側耐火面材8より薄く形成されているので、上側耐火面材9の重量の嵩みを抑えることができる。
According to the invention described in claim 3, the total length of the joints T3 and T4 between the upper refractory face members 9 is shorter than the total length of the joints T1 and T2 between the lower refractory face members 8. Therefore, there are fewer defects in terms of fire prevention performance, which is effective.
And since the total extension of the length of the joints T3 and T4 between the upper refractory face materials 9 is short, the majority of the upper refractory face material 9 has a larger area than the lower refractory face material 8, but the upper refractory face material 9 Since 9 is formed thinner than the lower refractory face material 8, the weight of the upper refractory face material 9 can be suppressed.

請求項4に記載の発明によれば、下側耐火面材8と上側耐火面材9とは、それらの長辺どうしが直交しているので、下側耐火面材8どうしの継目と上側耐火面材9どうしの継目とが同じ方向を向かずに直交することとなり、継目が重なっている場合に問題となる強度低下を防ぐことができる。   According to the invention described in claim 4, since the long side of the lower refractory face material 8 and the upper refractory face material 9 are orthogonal to each other, the joint between the lower refractory face material 8 and the upper refractory face material 9. The joints between the face members 9 are orthogonal to each other without facing the same direction, so that it is possible to prevent a decrease in strength that becomes a problem when the joints overlap.

請求項5に記載の発明によれば、下張り耐火面材8の短辺どうしの継目T1と、上側耐火面材9の長辺どうしの継目T4とが一致していないので、上側耐火面材9の長辺どうしの継目T4は、下側耐火面材8上に位置しており、これによって、上側耐火面材9どうしには、継目T4、T3近傍で段差が生じ難くなる。よって、これら上側耐火面材9上にクロスを貼り付ける際に、継目T4、T3に沿ってクロスに傷や突条が生じたり、クロスが切れるといった不具合を解消できる。   According to the fifth aspect of the invention, the joint T1 between the short sides of the underlayed refractory face material 8 and the joint T4 between the long sides of the upper refractory face material 9 do not coincide with each other. The seam T4 between the long sides is located on the lower refractory face material 8, and therefore, it is difficult for the upper refractory face material 9 to have a step near the seams T4 and T3. Therefore, when the cloth is pasted on the upper refractory face material 9, it is possible to eliminate problems such as scratches or protrusions on the cloth along the seams T4 and T3, or the cloth being cut.

請求項6に記載の発明によれば、下側耐火面材8の短辺どうしの継目T1が、短辺方向に連続していないので、これら下側耐火面材8によって形成された取付面80は、前記継目T1が連続している場合に比して、全体的に平坦となる。したがって、この取付面80に取付けられた上側耐火面材9どうしには、継目T4、T3近傍で段差が生じ難くなる。よって、これら上側耐火面材9上にクロスを貼り付ける際に、継目T4、T3に沿ってクロスに傷や突条が生じたり、クロスが切れるといった不具合を解消できる。   According to the invention described in claim 6, since the joint T1 between the short sides of the lower refractory surface material 8 is not continuous in the short side direction, the mounting surface 80 formed by these lower refractory surface materials 8. Is flat as a whole as compared with the case where the seam T1 is continuous. Therefore, it is difficult for the upper refractory face material 9 attached to the attachment surface 80 to have a step near the joints T4 and T3. Therefore, when the cloth is pasted on the upper refractory face material 9, it is possible to eliminate problems such as scratches or protrusions on the cloth along the seams T4 and T3, or the cloth being cut.

請求項7に記載の発明によれば、継目T1を介して配置された下側耐火面材8の長辺の長さの総延長が、基準寸法の整数倍となり、継目T4を介して配置された上側耐火面材9の短辺の長さの総延長が、基準寸法の整数倍となるので、これら下側耐火面材8と上側耐火面材9を取付ける天井の一辺の長さを、基準寸法の整数倍に設定することによって、下側耐火面材8と上側耐火面材9とをそれぞれ隙間無く天井にその一辺方向に割り付けることができる。   According to invention of Claim 7, the total extension of the length of the long side of the lower refractory surface material 8 arrange | positioned via the joint T1 becomes an integral multiple of a reference | standard dimension, and is arrange | positioned via the joint T4. Since the total extension of the short side length of the upper refractory face material 9 is an integral multiple of the reference dimension, the length of one side of the ceiling to which the lower refractory face material 8 and the upper refractory face material 9 are attached is defined as a reference. By setting an integral multiple of the dimension, the lower refractory face material 8 and the upper refractory face material 9 can be assigned to the ceiling in the direction of one side without any gaps.

以下、図面を参照して本発明の実施の形態について説明する。
図1は、本発明にかかる天井の耐火構造の概略構成図であり、図2および図3は本発明にかかる天井の耐火構造の平面図である。図4は天井の耐火構造の概略構成図であって、図5および図6は天井の耐火構造1の断面図である。図7は本発明にかかる床の耐火構造100の概略構成図であって、図8および9は、天井の床パネル2側の平面図である。
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a schematic configuration diagram of a fireproof structure for a ceiling according to the present invention, and FIGS. 2 and 3 are plan views of the fireproof structure for a ceiling according to the present invention. 4 is a schematic configuration diagram of the fireproof structure of the ceiling, and FIGS. 5 and 6 are cross-sectional views of the fireproof structure 1 of the ceiling. FIG. 7 is a schematic configuration diagram of a floor fireproof structure 100 according to the present invention, and FIGS. 8 and 9 are plan views of the ceiling floor panel 2 side.

まず、本発明に係る天井の構成について、図1を参照して説明する。本実施の形態では、天井は、例えば、対向する壁に水平に架橋されたまぐさ(図示省略)によって下方から支持される床パネル2、該対向するまぐさ(図示省略)に両端部を固定される吊梁4、4、上端部を吊梁4と連結してなる吊木5、吊木5の下端部に固定される格子状の野縁6、吊吊梁4と野縁6との間に、野縁6の全面に亘って設けられる断熱材7、などを備えてなる。
ここで、本実施の形態の、天井または床に耐火面材を取付けてなる天井または床の耐火構造は、天井を構成する、格子状に形成された野縁6に方形板状の複数の下側耐火面材8と、該下側耐火面材8によって形成された取付面80に、複数枚の方形板状の上側耐火面材9を取付ける場合を例に挙げて説明する。
First, the structure of the ceiling according to the present invention will be described with reference to FIG. In the present embodiment, for example, the ceiling is fixed from both sides to the floor panel 2 supported from below by lintels (not shown) horizontally bridged to the opposing walls, and both ends are fixed to the opposing lintels (not shown). The suspended beams 4, 4, the suspended tree 5 having the upper end connected to the suspended beam 4, the grid-like field edge 6 fixed to the lower end of the suspended tree 5, and the suspended suspension beam 4 and the field edge 6. Between them, a heat insulating material 7 provided over the entire surface of the field edge 6 is provided.
Here, the fireproof structure of the ceiling or floor in which the fireproof surface material is attached to the ceiling or the floor according to the present embodiment is a plurality of rectangular plate-like lower edges 6 formed in a lattice shape, which constitute the ceiling. A case where a plurality of rectangular plate-like upper refractory face materials 9 are attached to the side refractory face material 8 and the mounting surface 80 formed by the lower refractory face material 8 will be described as an example.

床パネル2は、框材20aを矩形枠状に組み、この矩形枠の内部に、中框20bや中桟20c、ブロッキング材20dなどを組み付けてなる枠体20と、枠体20の側面に取付けられた床材31、32などによって構成される。床パネル2は、対向する壁に水平に架橋されたまぐさ(図示省略)の間に、その長辺部を接するようにして2枚配置される。   The floor panel 2 is constructed by assembling the frame member 20a into a rectangular frame shape, and attaching the frame member 20 formed by assembling the intermediate rod 20b, the intermediate beam 20c, the blocking member 20d, etc. to the inside of the rectangular frame and the side surface of the frame member 20 It is comprised by the floor materials 31 and 32 etc. which were made. Two floor panels 2 are arranged so that the long side portions are in contact with the lintels (not shown) horizontally bridged to the opposing walls.

床材31は、石膏ボードで形成された下張り材であり、この下張り材(床材31)には、図8に示すように、4種類の床材31a、31b、31c、31dがある。床材31aは床の一方の端に配置される帯板状ものである。床材31bは床の他方の端に配置される帯板状のもので、短辺の長さが床材31aの短辺の長さと等しく、長辺の長さが床材31aの長辺の長さの約半分になっている。床材31cは、床材31a、31bより内側に配置される長方形板状ものであり、その長辺の長さは床材31aの長辺の長さと等しくなっており、短辺の長さは床材31aの短辺の長さの約2倍となっている。床材31dは、床材31a、31bより内側に配置される長方形板状ものであり、その長辺の長さは床材31bの長辺の長さと等しくなっており、短辺の長さは床材31cの短辺の長さと等しくなっている。
そして、このような床材31a、31b、31c、31dは、その長辺方向に隣接する床材31どうしの継目31Tが、短辺方向において連続しないようにして配置されている。
The flooring 31 is an underlay made of gypsum board. As shown in FIG. 8, there are four types of flooring 31a, 31b, 31c, and 31d. The flooring 31a is a strip-shaped member disposed at one end of the floor. The flooring 31b is in the form of a strip disposed at the other end of the floor, the length of the short side is equal to the length of the short side of the flooring 31a, and the length of the long side is the length of the long side of the flooring 31a. It is about half the length. The floor material 31c is a rectangular plate disposed inside the floor materials 31a and 31b, the length of the long side thereof is equal to the length of the long side of the floor material 31a, and the length of the short side is It is about twice the length of the short side of the flooring 31a. The flooring 31d is a rectangular plate disposed inside the flooring 31a, 31b, the length of the long side is equal to the length of the long side of the flooring 31b, and the length of the short side is It is equal to the length of the short side of the flooring 31c.
And such flooring 31a, 31b, 31c, 31d is arrange | positioned so that the joint 31T of the flooring 31 adjacent in the long side direction may not continue in a short side direction.

床板32は、合板で形成された表面材であり、この表面材(床板32)には、図9に示すように、2種類の床材32c、32dがある。床材32cは、前記床材31cと平面視における形状、大きさが等しいものであり、床材31cより薄くなっている。また、床材32dは、前記床材31dと平面視における形状、大きさが等しいものであり、床材31dより薄くなっている。
そして、このような床材32c、32dは、床材31a〜31dを敷き詰めることによって形成された平面に、重ねるようにして敷き詰められる。この場合、床材32c、32dは、その長辺方向に隣接する床材32どうしの継目32Tが、短辺方向において連続しないようにして配置されている。
また、床材32c、32dは、それらの長辺方向に沿う継目33Tが、平面視において、床材31a、31b、31c、31dの長辺方向に沿う継目34Tと一致しないようにして配置されている。
The floor board 32 is a surface material formed of plywood, and the surface material (floor board 32) includes two types of floor materials 32c and 32d as shown in FIG. The floor material 32c has the same shape and size in plan view as the floor material 31c, and is thinner than the floor material 31c. The floor material 32d has the same shape and size in plan view as the floor material 31d, and is thinner than the floor material 31d.
And such flooring 32c, 32d is spread | laid so that it may overlap on the plane formed by spreading | laying flooring 31a-31d. In this case, the floor materials 32c and 32d are arranged such that the joint 32T between the floor materials 32 adjacent in the long side direction is not continuous in the short side direction.
The floor materials 32c and 32d are arranged such that the seam 33T along the long side direction thereof does not coincide with the seam 34T along the long side direction of the floor materials 31a, 31b, 31c and 31d in plan view. Yes.

吊梁4は、対向するまぐさ(図示省略)に亘って、所定間隔で、平行に設けられる長尺の板状部材であって、吊梁4の端部はまぐさ(図示省略)に固定されている。
吊木5は、その上端部を吊梁4に固定され、その下端部は吊梁4の下面より下方に突出してなる。
野縁6は、図1に示すように、複数の野縁材を格子状に組み立てたものであり、吊梁4の下方に設けられ、この野縁6を構成する所定の野縁材に、複数の吊木5の下端部がそれぞれ固定されてなる。つまり、野縁6は、吊木5および吊梁4を介してまぐさ(図示省略)によって支持されている。
断熱材7は、吊梁4と野縁6との間に、野縁6全面に亘って設けられる。断熱材7としては、例えば、グラスウールやロックウールなどを用いることができる。
The suspension beam 4 is a long plate-like member provided in parallel at predetermined intervals over opposite lintels (not shown), and the end of the suspension beam 4 is fixed to the lintel (not shown). Has been.
The suspension tree 5 has an upper end fixed to the suspension beam 4 and a lower end projecting downward from the lower surface of the suspension beam 4.
As shown in FIG. 1, the field edge 6 is formed by assembling a plurality of field edge materials in a lattice shape, provided below the suspension beam 4, and a predetermined field edge material constituting the field edge 6 The lower ends of the plurality of suspension trees 5 are fixed to each other. That is, the field edge 6 is supported by the lintel (not shown) via the suspension tree 5 and the suspension beam 4.
The heat insulating material 7 is provided over the entire field edge 6 between the suspension beam 4 and the field edge 6. As the heat insulating material 7, for example, glass wool or rock wool can be used.

野縁6は、まぐさ(図示省略)の下面より若干上方に位置しており、野縁6の下方には、図1および図2に示すように、長方形板状の複数の下側耐火面材8が取付けられている。下側耐火面材8は強化石膏ボードで形成されたものであり、例えば、厚みは約21mm程度に設定されている。下側耐火面材8には、図2に示すように、4種類の下側耐火面材8a、8b、8c、8dがある。
下側耐火面材8aは野縁6の一方の端側に配置される帯板状の部材である。下側耐火面材8bは野縁6の他方の端側に配置される帯板状の部材であって、短辺の長さは下側耐火面材8aの短辺の長さと等しく、長辺の長さが下側耐火面材8aの長辺の長さの約半分となっている。下側耐火面材8cは下側耐火面材8a、8bより内側に配置される長方形板状の部材であり、その長辺の長さは下側耐火面材8aの長辺の長さと等しくなっており、短辺の長さは下側耐火面材8aの短辺の長さより若干長くなっている。下側耐火面材8dは、下側耐火面材8a、8bより内側に配置される長方形板状の部材であり、その長辺の長さは下側耐火面材8bの長辺の長さと等しくなっており、短辺の長さは下側耐火面材8cの短辺の長さと等しくなっている。
前記下側耐火面材8a〜8dのうち、最も面積が大きいものは、下側耐火面材8cであり、下側耐火面材8a、8d、8bはこの順で次第に面積が小さいものとなっている。
The field edge 6 is located slightly above the lower surface of the lintel (not shown), and below the field edge 6, as shown in FIGS. 1 and 2, a plurality of lower refractory surfaces having a rectangular plate shape. A material 8 is attached. The lower refractory face material 8 is formed of a reinforced gypsum board, and has a thickness of about 21 mm, for example. As shown in FIG. 2, the lower refractory face material 8 includes four types of lower refractory face materials 8a, 8b, 8c, and 8d.
The lower refractory face material 8 a is a strip-like member disposed on one end side of the field edge 6. The lower refractory face material 8b is a strip-like member disposed on the other end side of the field edge 6, and the length of the short side is equal to the length of the short side of the lower refractory face material 8a. Is approximately half the length of the long side of the lower refractory face material 8a. The lower refractory surface material 8c is a rectangular plate-like member disposed inside the lower refractory surface materials 8a and 8b, and the length of the long side thereof is equal to the length of the long side of the lower refractory surface material 8a. The length of the short side is slightly longer than the length of the short side of the lower refractory face material 8a. The lower refractory face material 8d is a rectangular plate-like member disposed inside the lower refractory face materials 8a and 8b, and the length of the long side is equal to the length of the long side of the lower refractory face material 8b. The length of the short side is equal to the length of the short side of the lower refractory face material 8c.
Among the lower refractory face materials 8a to 8d, the one having the largest area is the lower refractory face material 8c, and the lower refractory face materials 8a, 8d, and 8b have progressively smaller areas in this order. Yes.

そして、このような下側耐火面材8a、8b、8c、8dは、その長辺方向に隣接する下側耐火面材8の短辺どうしの継目T1が、短辺方向において連続しないようにして配置されている。
また、下側耐火面材8a、8b、8c、8dは、その短辺方向に隣接する下側耐火面材8どうしの継目T2が、長辺方向において連続するようにして配置されている。
さらに、継目T1、T2は全て、野縁6の野縁材上に位置するようにして配置され、これによって継目T1、T2が補強されるとともに、継目T1、T2を境として段差が生じないようになっている。
And such lower refractory surface material 8a, 8b, 8c, 8d is made so that the joint T1 between the short sides of the lower refractory surface material 8 adjacent in the long side direction does not continue in the short side direction. Has been placed.
Further, the lower refractory face materials 8a, 8b, 8c, and 8d are arranged such that the joint T2 between the lower refractory face materials 8 adjacent in the short side direction is continuous in the long side direction.
Further, the joints T1 and T2 are all arranged so as to be positioned on the field edge material of the field edge 6, thereby reinforcing the seams T1 and T2 and preventing a step from occurring at the seams T1 and T2. It has become.

下側耐火面材8a、8b、8c、8dによって形成された取付面80には、長方形板状の複数の上側耐火面材9が取付けられている。上側耐火面材9は強化石膏ボードによって形成されたものであり、例えば、厚みは約15mmと、下側耐火面材8より薄く設定されている。また、上側耐火面材9には、図3に示すように、6種類の上側耐火面材9a、9b、9c、9d、9e、9fがある。   A plurality of upper refractory surface materials 9 having a rectangular plate shape are attached to an attachment surface 80 formed by the lower refractory surface materials 8a, 8b, 8c, and 8d. The upper refractory face material 9 is formed of a reinforced gypsum board. For example, the thickness is set to about 15 mm, which is thinner than the lower refractory face material 8. Further, as shown in FIG. 3, the upper refractory face material 9 includes six types of upper refractory face materials 9a, 9b, 9c, 9d, 9e, and 9f.

上側耐火面材9aは、野縁6の長辺に沿って配置される帯板状のものである。上側耐火面材9bは、野縁6の長辺に沿って、上側耐火面材9aの延長上に配置される帯板状のもので、短辺の長さが上側耐火面材9aの短辺の長さと等しく、長辺の長さが上側耐火面材9aの長辺の長さより長くなっている。上側耐火面材9cは、野縁6の長辺に沿って、上側耐火面材9bの延長上に配置される帯板状のもので、短辺の長さが上側耐火面材9bの短辺の長さと等しく、長辺の長さが上側耐火面材9aの長辺の長さより短くなっている。   The upper refractory face material 9 a is in the form of a strip that is disposed along the long side of the field edge 6. The upper refractory surface material 9b is a strip-shaped member disposed on the extension of the upper refractory surface material 9a along the long side of the field edge 6, and the length of the short side is the short side of the upper refractory surface material 9a. The length of the long side is longer than the length of the long side of the upper refractory face material 9a. The upper refractory face material 9c is in the form of a strip disposed on the extension of the upper refractory face material 9b along the long side of the field edge 6, and the short side length is the short side of the upper refractory face material 9b. The length of the long side is shorter than the length of the long side of the upper refractory face material 9a.

上側耐火面材9dは、野縁6の内側に配置される長方形板状の部材であり、その短辺の長さは上側耐火面材9cの短辺の長さの2倍であり、長辺の長さは上側耐火面材9cの長辺の長さより短くなっている。上側耐火面材9eは、野縁6の長辺と平行に上側耐火面材9dの延長上に配置される長方形板状の部材で、短辺の長さが上側耐火面材9dの短辺の長さと等しく、長辺の長さが上側耐火面材9bの長辺の長さと等しくなっている。上側耐火面材9fは、野縁6の長辺と平行に上側耐火面材9eの延長上に配置される長方形板状の部材で、短辺の長さが上側耐火面材9eの短辺の長さと等しく、長辺の長さが上側耐火面材9eの長辺の長さより短く、かつ、上側耐火面材9dの長辺の長さより長くなっている。   The upper refractory face material 9d is a rectangular plate-like member disposed inside the field edge 6, and the length of the short side thereof is twice the length of the short side of the upper refractory face material 9c. Is shorter than the length of the long side of the upper refractory face material 9c. The upper refractory surface material 9e is a rectangular plate-like member disposed on the extension of the upper refractory surface material 9d in parallel with the long side of the field edge 6, and the short side length is the short side of the upper refractory surface material 9d. It is equal to the length, and the length of the long side is equal to the length of the long side of the upper refractory face material 9b. The upper refractory surface material 9f is a rectangular plate-like member arranged on the extension of the upper refractory surface material 9e in parallel with the long side of the field edge 6, and the short side length is the short side of the upper refractory surface material 9e. It is equal to the length, and the length of the long side is shorter than the length of the long side of the upper refractory face material 9e and longer than the length of the long side of the upper refractory face material 9d.

上側耐火面材9a〜9fのうち、最も面積が大きいものは、上側耐火面材9eであり、上側耐火面材9f、9d、9b、9a、9cはこの順で次第に面積が小さいものとなっている。
本実施の形態では野縁6に上側耐火面材9a〜9fを適宜割りつけて配置しているが、野縁6が大きい場合、上側耐火面材9eを長辺方向に並べ、短辺方向に隣接する上側耐火面材9eは、野縁6の一つの格子の大きさ分だけ長辺方向にずらして並べる。そして、野縁6の外周部において、上側耐火面材9eを割り付けられない場合に、上側耐火面材9f、9d、9b、9a、9cを適宜割り付ける。
同様に、本実施の形態では野縁6に下側耐火面材8a〜8dを適宜割りつけて配置しているが、野縁6が大きい場合、最も面積が大きい下側耐火面材8cを長辺方向に並べ、短辺方向に隣接する下側耐火面材8cは、野縁6の格子二つ分だけ長辺方向にずらして並べる。そして、野縁6の外周部において、下側耐火面材8cを割り付けられない場合に、下側耐火面材8a、8b、8dを適宜割り付ける。
Among the upper refractory face materials 9a to 9f, the one having the largest area is the upper refractory face material 9e, and the upper refractory face materials 9f, 9d, 9b, 9a, and 9c gradually become smaller in this order. Yes.
In the present embodiment, the upper refractory surface materials 9a to 9f are appropriately allocated and arranged on the field edge 6. However, when the field edge 6 is large, the upper refractory surface materials 9e are arranged in the long side direction and are arranged in the short side direction. Adjacent upper refractory face materials 9e are arranged shifted in the long side direction by the size of one grid of the field edge 6. And in the outer peripheral part of the field edge 6, when the upper side refractory surface material 9e cannot be allocated, the upper side refractory surface material 9f, 9d, 9b, 9a, 9c is allocated suitably.
Similarly, in the present embodiment, the lower refractory face material 8a to 8d are appropriately assigned to the field edge 6 and arranged. However, when the field edge 6 is large, the lower refractory surface material 8c having the largest area is long. The lower refractory face materials 8c arranged in the side direction and adjacent in the short side direction are arranged shifted in the long side direction by two grids of the field edge 6. And in the outer peripheral part of the field edge 6, when the lower refractory surface material 8c cannot be allocated, the lower refractory surface materials 8a, 8b, 8d are allocated appropriately.

本実施の形態では、野縁6に取付けられている下側耐火面材8a〜8dはそれぞれほぼ同数、割り付けられているが、野縁6が大きい場合、つまり天井が広い場合、野縁6には最も面積が大きい下側耐火面材8cが多数取付けられ、野縁6の残りの外周部に下側耐火面材8a、8b、8dが適宜割り付けられる。
同様に、本実施の形態では、野縁6に取付けられている上側耐火面材9a〜9fはそれぞれほぼ同数、割り付けられているが、野縁6が大きい場合、つまり天井が広い場合、野縁6には最も面積が大きい上側耐火面材9eが多数取付けられ、野縁6の残りの外周部に上側耐火面材9f、9d、9b、9a、9cが適宜割り付けられる。
そして、上側耐火面材9の大多数を占める上側耐火面材9eは、下側耐火面材8の大多数を占める下側耐火面材8cより面積が大きいが、上側耐火面材9eは、下側耐火面材8cより薄く形成されている。
In the present embodiment, the lower refractory face materials 8a to 8d attached to the field edge 6 are assigned approximately the same number, but if the field edge 6 is large, that is, if the ceiling is wide, A large number of lower refractory face materials 8c having the largest area are attached, and the lower refractory face materials 8a, 8b, 8d are appropriately assigned to the remaining outer peripheral portion of the field edge 6.
Similarly, in the present embodiment, the upper refractory face materials 9a to 9f attached to the field edge 6 are assigned approximately the same number, but when the field edge 6 is large, that is, when the ceiling is wide, the field edge A large number of upper refractory face materials 9e having the largest area are attached to 6, and the upper refractory face materials 9f, 9d, 9b, 9a, 9c are appropriately assigned to the remaining outer peripheral portion of the field edge 6.
The upper refractory face material 9e occupying the majority of the upper refractory face material 9 has a larger area than the lower refractory face material 8c occupying the majority of the lower refractory face material 8, but the upper refractory face material 9e It is formed thinner than the side refractory face material 8c.

また、このような上側耐火面材9a〜9fは、下側耐火面材8a〜8dを敷き詰めることによって形成された取付面80に、重ねるようにして敷き詰められる。
この場合、上側耐火面材9a〜9fは、その長辺方向に隣接する上側耐火面材9どうしの継目T3が、短辺方向において連続しないようにして配置されている。
また、上側耐火面材9a〜9fは、その短辺方向に隣接する上側耐火面材9どうしの継目T4が、長辺方向において連続するようにして配置されている。
さらに、継目T3、T4は全て、野縁6の野縁6材上に位置するようにして配置される。これによって、継目T3、T4が補強されるとともに、継目T3、T4を境として段差が生じないようになっている。
Further, such upper refractory face materials 9a to 9f are spread over the mounting surface 80 formed by spreading the lower refractory face materials 8a to 8d.
In this case, the upper refractory face materials 9a to 9f are arranged such that the joint T3 between the upper refractory face materials 9 adjacent in the long side direction is not continuous in the short side direction.
Further, the upper refractory face materials 9a to 9f are arranged such that the seams T4 between the upper refractory face materials 9 adjacent in the short side direction are continuous in the long side direction.
Further, the joints T3 and T4 are all arranged so as to be located on the field edge 6 material of the field edge 6. As a result, the joints T3 and T4 are reinforced, and a step is not generated at the joints T3 and T4.

また、図4に示すように、下側耐火面材8a〜8dと上側耐火面材9a〜9fとは、平面視において、それらの長辺どうしが直交するようにして、配置されている。
さらに、下側耐火面材8a〜8dと上側耐火面材9a〜9fとは、互いに隣り合う下側耐火面材8a〜8dの短辺どうしの継目T1と、互いに隣り合う上側耐火面材9a〜9fの長辺どうしの継目T4とが、平面視において一致していないようにして、配置されている。
そして、上側耐火面材9どうしの継目T3、T4の長さの総延長は、下側耐火面材8どうしの継目T1、T2の長さの総延長より短くなっている。
Further, as shown in FIG. 4, the lower refractory face materials 8 a to 8 d and the upper refractory face materials 9 a to 9 f are arranged such that their long sides are orthogonal to each other in plan view.
Further, the lower refractory face materials 8a to 8d and the upper refractory face materials 9a to 9f are the seams T1 between the short sides of the lower refractory face materials 8a to 8d adjacent to each other and the upper refractory face materials 9a to 9f adjacent to each other. The seams T4 between the long sides of 9f are arranged so as not to coincide with each other in plan view.
The total length of the joints T3 and T4 between the upper refractory face materials 9 is shorter than the total length of the joints T1 and T2 between the lower refractory face materials 8.

さらに、下側耐火面材8a〜8dの長辺の長さと、上側耐火面材9a〜9fの短辺の長さとは、それぞれ基準寸法の整数倍となっている。具体的には、基準寸法を、例えば、455mm(0.5M(モジュール))とすると、下側耐火面材8aの長辺の長さは基準寸法の4倍(2M)、下側耐火面材8bの長辺の長さは基準寸法の2倍(1M)、下側耐火面材8cの長辺の長さは基準寸法の4倍(2M)、下側耐火面材8dの長辺の長さは基準寸法の2倍(1M)となっている。
また、上側耐火面材9a、9b、9cの短辺の長さは基準寸法の1倍(0.5M)、上側耐火面材9d、9e、9fの短辺の長さは基準寸法の2倍(1M)となっている。
Furthermore, the length of the long side of the lower refractory face materials 8a to 8d and the length of the short side of the upper refractory face materials 9a to 9f are each an integral multiple of the reference dimension. Specifically, for example, when the reference dimension is 455 mm (0.5 M (module)), the length of the long side of the lower refractory face material 8 a is four times (2 M) the reference dimension, and the lower refractory face material. The length of the long side of 8b is twice the reference dimension (1M), the length of the long side of the lower refractory face material 8c is four times the reference dimension (2M), and the length of the long side of the lower refractory face material 8d This is twice the reference dimension (1M).
Further, the length of the short side of the upper refractory face materials 9a, 9b, 9c is one time (0.5M) of the reference dimension, and the length of the short side of the upper refractory face materials 9d, 9e, 9f is twice the reference dimension. (1M).

下側耐火面材8および上側耐火面材9の天井への取付けは、図5に示すように、下側耐火面材8を釘打ちによって野縁6に固定し、さらにその上面から上側耐火面材9を釘打ちによって固定することにより取付けているが、取付方法はこれに限られることはなく、適宜好適な方法を用いることができる。
他の取付方法として、例えば、図6に示すように、下側耐火面材8と、上側耐火面材9とを、取付面80を介して、シアノアクリレート系、ポリサルファイド系、シリコーン系などの無機系接着剤(図示省略)を用いて接着固定し、該接着固定された下側耐火面材8と上側耐火面材9とをステープル12によって野縁6に固定することとしてもよい。
As shown in FIG. 5, the lower refractory surface material 8 and the upper refractory surface material 9 are attached to the field edge 6 by nailing, as shown in FIG. The material 9 is attached by being fixed by nailing, but the attachment method is not limited to this, and a suitable method can be used as appropriate.
As another attachment method, for example, as shown in FIG. 6, the lower refractory surface material 8 and the upper refractory surface material 9 are connected to an inorganic material such as cyanoacrylate, polysulfide, or silicone via an attachment surface 80. It is also possible to bond and fix using a system adhesive (not shown) and fix the bonded and fixed lower refractory surface material 8 and upper refractory surface material 9 to the field edge 6 with staples 12.

以上に説明したように配置される下側耐火面材8と上側耐火面材9の継目に耐火性を有する目地処理材として、ガラス繊維テープ10およびパテ11が取付けられる。具体的には、互いに隣り合う下側耐火面材8どうしの継目T1、T2と、互いに隣り合う上側耐火面材9どうしの継目T3、T4の、少なくとも何れか一方の継目に、ガラス繊維テープ10が取付けられる。
本実施の形態においては、例えば、図4および図5に示すように、下側耐火面材8の継目T2および上側耐火面材9の継目T4に取付けられる。具体的には、継目T2に沿って、継目T2を完全に覆い隠すようにガラス繊維テープ10が取付けられ、さらにその上方から、ガラス繊維テープ10の全面を覆うようにエポキシ樹脂などの含浸透性を有するパテ11が塗布される。このパテ11の硬化により、継目T2およびT4の隙間が塞がれる。
The glass fiber tape 10 and the putty 11 are attached as a joint treatment material having fire resistance at the joint between the lower refractory face material 8 and the upper refractory face material 9 arranged as described above. Specifically, the glass fiber tape 10 is attached to at least one of the joints T1, T2 between the lower refractory face materials 8 adjacent to each other and the joints T3, T4 between the upper refractory face materials 9 adjacent to each other. Is installed.
In the present embodiment, for example, as shown in FIGS. 4 and 5, they are attached to the joint T <b> 2 of the lower refractory face material 8 and the joint T <b> 4 of the upper refractory face material 9. Specifically, the glass fiber tape 10 is attached along the seam T2 so as to completely cover the seam T2, and from above, the impregnating property such as epoxy resin is provided so as to cover the entire surface of the glass fiber tape 10. A putty 11 having a coating is applied. By the hardening of the putty 11, the gap between the joints T2 and T4 is closed.

尚、ガラス繊維テープ10によって全ての継目が覆われていなくてもよく、例えば、下側耐火面材8の継目T2と上側耐火面材9の継目T4とが交差する箇所のみ取付けることとしてもよいし、これら以外にも適宜可能な方法で取付けることができる。
また、耐火性を有する目地処理材として、ガラス繊維テープ10を例示したが、これに限るものではなく、耐火性を有し、且つ継目を覆う材料であればよく、例えば、セラミック材料や耐火金属などを用いても良い。
Note that not all the seams need to be covered by the glass fiber tape 10, and for example, only the portion where the seam T <b> 2 of the lower refractory surface material 8 and the seam T <b> 4 of the upper refractory surface material 9 intersect may be attached. However, it can be attached by any other suitable method.
Moreover, although the glass fiber tape 10 was illustrated as a joint-treatment material which has fire resistance, it is not restricted to this, What is necessary is just a material which has fire resistance and covers a joint, for example, a ceramic material and a refractory metal Etc. may be used.

以上に説明した、天井の耐火構造1によると、上側対火面材9は、下側耐火面材8より薄くて且つ面積が大きいので、上側耐火面材9どうしの継目を少なくできるとともに、上側耐火面材9の重量の嵩みを抑えることができる。また、上側耐火面材9を薄くした分、下側耐火面材8を厚くすることによって、上側耐火面材9と下側耐火面材8との合計の厚さを所定の厚さにできる。さらに、下側耐火面材8の大多数は上側耐火面材9より面積が小さいので、下側耐火面材8の重量の嵩みを抑えることができる。
さらに、隣り合う下側耐火面材8どうしの継目と、隣り合う上側耐火面材9どうしの継目の少なくともいずれか一方に、耐火性を有する目地処理材が取付けられることによって、より耐火性を向上させることができ、下側耐火面材8と上側耐火面材9のいずれの継目にも目地処理材が取付けられる場合には、特に高い耐火性を実現することができる。
また、耐火性を備えた目地処理材として、ガラス繊維テープ10が用いられることとなり、手間をかけることなく、簡便に天井または床の耐火性を向上させることができる。
According to the ceiling fireproof structure 1 described above, the upper fire face material 9 is thinner and has a larger area than the lower fire face material 8, so that the number of joints between the upper fire face materials 9 can be reduced, and the upper fire face material 9 can be reduced. The bulk of the refractory face material 9 can be suppressed. Further, by making the upper refractory face material 9 thicker by making the upper refractory face material 9 thinner, the total thickness of the upper refractory face material 9 and the lower refractory face material 8 can be made a predetermined thickness. Furthermore, since the majority of the lower refractory face material 8 has a smaller area than the upper refractory face material 9, the weight of the lower refractory face material 8 can be suppressed.
Furthermore, a fireproof joint material is attached to at least one of the joints between the adjacent lower refractory face materials 8 and the joint between the adjacent upper refractory face materials 9, thereby further improving the fire resistance. In the case where the joint treatment material is attached to any joint of the lower refractory face material 8 and the upper refractory face material 9, particularly high fire resistance can be realized.
Further, the glass fiber tape 10 is used as a joint treatment material having fire resistance, and the fire resistance of the ceiling or floor can be easily improved without taking time and effort.

さらに、上側耐火面材9どうしの継目T3,T4の長さの総延長が、下側耐火面材8どうしの継目T1,T2の長さの総延長より短くなっているので、防火性能上、欠点が少なくなり有効となる。
そして、上側耐火面材9どうしの継目T3,T4の長さの総延長が短いので、上側耐火面材9の大多数は、下側耐火面材8より面積が大きくなるが、上側耐火面材9は、下側耐火面材8より薄く形成されているので、上側耐火面材9の重量の嵩みを抑えることができる。
Furthermore, since the total extension of the length of the joints T3, T4 between the upper refractory face materials 9 is shorter than the total extension of the length of the joints T1, T2 between the lower refractory face materials 8, It is effective with fewer defects.
And since the total extension of the length of the joints T3 and T4 between the upper refractory face materials 9 is short, the majority of the upper refractory face material 9 has a larger area than the lower refractory face material 8, but the upper refractory face material 9 Since 9 is formed thinner than the lower refractory face material 8, the weight of the upper refractory face material 9 can be suppressed.

また、下側耐火面材8と上側耐火面材9とは、それらの長辺どうしが直交しているので、下側耐火面材8どうしの継目と上側耐火面材9どうしの継目とが同じ方向を向かずに直交することとなり、継目が重なっている場合に問題となる強度低下を防ぐことができる。   Moreover, since the long sides of the lower refractory face material 8 and the upper refractory face material 9 are orthogonal to each other, the joint of the lower refractory face material 8 and the joint of the upper refractory face material 9 are the same. It becomes orthogonal without facing the direction, and it is possible to prevent the strength reduction that becomes a problem when the seams overlap.

さらに、下張り耐火面材8の短辺どうしの継目T1と、上側耐火面材9の長辺どうしの継目T4とが一致していないので、上側耐火面材9の長辺どうしの継目T4は、下側耐火面材8上に位置しており、これによって、上側耐火面材9どうしには、継目T4、T3近傍で段差が生じ難くなる。よって、これら上側耐火面材9上にクロスを貼り付ける際に、継目T4、T3に沿ってクロスに傷や突条が生じたり、クロスが切れるといった不具合を解消できる。   Furthermore, since the joint T1 between the short sides of the lower refractory face material 8 and the joint T4 between the long sides of the upper refractory face material 9 do not match, the joint T4 between the long sides of the upper refractory face material 9 is It is located on the lower refractory face material 8, thereby making it difficult for the upper refractory face material 9 to have a step near the joints T <b> 4 and T <b> 3. Therefore, when the cloth is pasted on the upper refractory face material 9, it is possible to eliminate problems such as scratches or protrusions on the cloth along the seams T4 and T3, or the cloth being cut.

そして、下側耐火面材8の短辺どうしの継目T1が、短辺方向に連続していないので、これら下側耐火面材8によって形成された取付面80は、前記継目T1が連続している場合に比して、全体的に平坦となる。したがって、この取付面80に取付けられた上側耐火面材9どうしには、継目T3、T4近傍で段差が生じ難くなる。よって、これら上側耐火面材9上にクロスを貼り付ける際に、継目T3、T4に沿ってクロスに傷や突条が生じたり、クロスが切れるといった不具合を解消できる。   And since the joint T1 between the short sides of the lower refractory surface material 8 is not continuous in the short side direction, the joint surface 80 formed by these lower refractory surface materials 8 has the joint T1 continuously. Compared with the case where it is, it becomes flat as a whole. Therefore, it is difficult for the upper refractory face material 9 attached to the attachment surface 80 to have a step near the joints T3 and T4. Therefore, when the cloth is pasted on the upper refractory face material 9, it is possible to eliminate problems such as scratches and protrusions on the cloth along the joints T3 and T4, and the cloth being cut.

また、継目T1を介して配置された下側耐火面材8の長辺の長さの総延長が、基準寸法の整数倍となり、継目T4を介して配置された上側耐火面材9の短辺の長さの総延長が、基準寸法の整数倍となるので、これら下側耐火面材8と上側耐火面材9を取付ける天井の一辺の長さを、基準寸法の整数倍に設定することによって、下側耐火面材8と上側耐火面材9とをそれぞれ隙間無く天井にその一辺方向に割り付けることができる。   Moreover, the total extension of the long side length of the lower refractory face material 8 arranged via the joint T1 is an integral multiple of the reference dimension, and the short side of the upper refractory face material 9 arranged via the joint T4. Since the total extension of the length is an integral multiple of the reference dimension, by setting the length of one side of the ceiling to which the lower refractory face material 8 and the upper refractory face material 9 are attached to an integral multiple of the reference dimension, The lower refractory face material 8 and the upper refractory face material 9 can be assigned to the ceiling in the one side direction without any gaps.

尚、本発明は、上記実施の形態に限定されるものではなく、その要旨を逸脱しない範囲で適宜変更可能である。
上記実施の形態では、天井の野縁6に、耐火面材(下側耐火面材8と上側耐火面材9)を取付けた場合を例にとって説明したが、本発明はこれに限ることなく、床(例えば、床材31)側に耐火面材(下側耐火面材8と上側耐火面材9)を取付けてなる床の耐火構造100に適用してもよい。この場合、例えば図7に示すように、床材31の上面に下側耐火面材8と上側耐火面材9とを重ねて取付け、さらに、上側耐火面材9の上面に床材32を設け、床材32の上面に仕上げ用の合板で形成された床板(例えばフローリング材など)13を取付ける。また、野縁6の下方には、例えば天板14を取付ける。その他、床パネル2、吊梁4、吊木5、野縁6、断熱材7などの構成は前述した通りである。
In addition, this invention is not limited to the said embodiment, In the range which does not deviate from the summary, it can change suitably.
In the said embodiment, although the case where the fireproof surface material (the lower fireproof surface material 8 and the upper fireproof surface material 9) was attached to the field edge 6 of the ceiling was demonstrated as an example, this invention is not limited to this, You may apply to the fireproof structure 100 of the floor which attaches a fireproof surface material (the lower fireproof surface material 8 and the upper fireproof surface material 9) to the floor (for example, flooring 31) side. In this case, for example, as shown in FIG. 7, the lower refractory surface material 8 and the upper refractory surface material 9 are attached to the upper surface of the floor material 31 and the floor material 32 is provided on the upper surface of the upper refractory surface material 9. Then, a floor board (for example, a flooring material) 13 made of plywood for finishing is attached to the upper surface of the floor material 32. Also, for example, a top plate 14 is attached below the field edge 6. In addition, the configurations of the floor panel 2, the suspension beam 4, the suspension tree 5, the field edge 6, the heat insulating material 7, and the like are as described above.

本発明にかかる天井の耐火構造1の概略構成図である。It is a schematic block diagram of the fireproof structure 1 of the ceiling concerning this invention. 天井の耐火構造1の平面図である。It is a top view of the fireproof structure 1 of a ceiling. 天井の耐火構造1の平面図である。It is a top view of the fireproof structure 1 of a ceiling. 天井の耐火構造1の概略構成図である。It is a schematic block diagram of the fireproof structure 1 of a ceiling. 天井の耐火構造1の断面図である。It is sectional drawing of the fireproof structure 1 of a ceiling. 図5における天井の耐火構造1の、他の固定手段における断面図である。It is sectional drawing in the other fixing means of the fireproof structure 1 of the ceiling in FIG. 本発明にかかる床の耐火構造100の概略構成図である。It is a schematic block diagram of the fireproof structure 100 of the floor concerning this invention. 天井の床パネル2側の平面図である。It is a top view by the side of the floor panel 2 of a ceiling. 天井の床パネル2側の平面図である。It is a top view by the side of the floor panel 2 of a ceiling.

符号の説明Explanation of symbols

1 天井の耐火構造(天井または床の耐火構造)
2 床パネル
8 下側耐火面材
9 上側耐火面材
10 ガラス繊維テープ
12 ステープル
80 取付面
100 床の耐火構造(天井または床の耐火構造)
T1、T2、T3、T4 継目
1 Fireproof structure of ceiling (fireproof structure of ceiling or floor)
2 Floor panel 8 Lower refractory surface material 9 Upper refractory surface material 10 Glass fiber tape 12 Staple 80 Mounting surface 100 Fireproof structure of floor (fireproof structure of ceiling or floor)
T1, T2, T3, T4 seams

Claims (7)

天井または床に、耐火面材を取付けてなる天井または床の耐火構造であって、
前記天井または床に、方形板状の複数の下側耐火面材が取付けられており、これら下側耐火面材によって形成された取付面には、少なくとも2枚以上の方形板状の上側耐火面材が取付けられており、
互いに隣り合う前記下側耐火面材どうしの継目と、互いに隣り合う前記上側耐火面材どうしの継目の、少なくともいずれか一方の継目に耐火性を有する目地処理材が取付けられ、
前記上側耐火面材は、前記下側耐火面材より薄くてかつ面積が大きいことを特徴とする天井または床の耐火構造。
A ceiling or floor fireproof structure in which a fireproof face material is attached to the ceiling or floor,
A plurality of rectangular plate-like lower refractory surfaces are attached to the ceiling or floor, and at least two rectangular plate-shaped upper refractory surfaces are formed on the attachment surface formed by these lower refractory surfaces. The material is attached,
A joint material having fire resistance is attached to at least one of the joints between the lower refractory face materials adjacent to each other and the seam between the upper refractory face materials adjacent to each other,
The ceiling or floor refractory structure, wherein the upper refractory face material is thinner and has a larger area than the lower refractory face material.
請求項1に記載の天井または床の耐火構造において、
前記目地処理材が、ガラス繊維テープであることを特徴とする天井または床の耐火構造。
In the fireproof structure of the ceiling or floor according to claim 1,
A fireproof structure for a ceiling or floor, wherein the joint treatment material is a glass fiber tape.
請求項1または2に記載の天井または床の耐火構造において、
前記上側耐火面材どうしの継目の長さの総延長は、前記下側耐火面材どうしの継目の長さの総延長より短くなっていることを特徴とする天井または床の耐火構造。
In the fireproof structure of the ceiling or floor according to claim 1 or 2,
The ceiling or floor refractory structure characterized in that a total length of a seam between the upper refractory face materials is shorter than a total length of a seam length between the lower refractory face materials.
請求項1〜3の何れか一項に記載の天井または床の耐火構造において、
前記下側耐火面材と前記上側耐火面材とは、それぞれ長方形板状をなしており、
これら下側耐火面材と上側耐火面材とは、平面視において、それらの長辺どうしが直交するようにして配置されていることを特徴とする天井または床の耐火構造。
In the fireproof structure of the ceiling or floor according to any one of claims 1 to 3,
The lower refractory face material and the upper refractory face material each have a rectangular plate shape,
A fireproof structure for a ceiling or floor, characterized in that the lower refractory face material and the upper refractory face material are arranged so that their long sides are orthogonal to each other in plan view.
請求項4に記載の天井または床の耐火構造において、
前記下側耐火面材の短辺どうしの継目と、前記上側耐火面材の長辺どうしの継目とは、平面視において一致していないことを特徴とする天井または床の耐火構造。
In the fireproof structure of the ceiling or floor according to claim 4,
A ceiling or floor refractory structure characterized in that a seam between short sides of the lower refractory face material and a joint between long sides of the upper refractory face material do not coincide in plan view.
請求項4または5に記載の天井または床の耐火構造において、
前記下側耐火面材は、短辺どうしの継目が、短辺方向に連続しないようにして配置されていることを特徴とする天井または床の耐火構造。
In the fireproof structure of the ceiling or floor according to claim 4 or 5,
The fireproof structure for a ceiling or floor, wherein the lower refractory face material is arranged such that a seam between short sides is not continuous in the short side direction.
請求項4〜6の何れか一項に記載の天井または床の耐火構造において、
前記下側耐火面材の長辺の長さと、前記上側耐火面材の短辺の長さとは、それぞれ基準寸法の整数倍となっていることを特徴とする天井または床の耐火構造。
In the fireproof structure of the ceiling or floor according to any one of claims 4 to 6,
The ceiling or floor refractory structure characterized in that the length of the long side of the lower refractory face material and the length of the short side of the upper refractory face material are each an integral multiple of a reference dimension.
JP2004354318A 2004-12-07 2004-12-07 Fire-resistant structure of ceiling or floor Pending JP2006161406A (en)

Priority Applications (1)

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Applications Claiming Priority (1)

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