JP2004003295A - Exterior wall structure excellent in fire preventing and resisting performance - Google Patents

Exterior wall structure excellent in fire preventing and resisting performance Download PDF

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JP2004003295A
JP2004003295A JP2003053129A JP2003053129A JP2004003295A JP 2004003295 A JP2004003295 A JP 2004003295A JP 2003053129 A JP2003053129 A JP 2003053129A JP 2003053129 A JP2003053129 A JP 2003053129A JP 2004003295 A JP2004003295 A JP 2004003295A
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Prior art keywords
steel
gypsum board
metal plate
steel column
wall
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Inventor
Toshinori Murakami
村上　敏則
Noriaki Aoki
青木　能理顕
Masami Itabashi
板橋　雅巳
Akio Omuro
大室　彰男
Mitsuharu Suzuki
鈴木　光春
Yasuo Uchikawa
内川　康夫
Akio Yoshida
吉田　昭夫
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Nippon Steel Nisshin Co Ltd
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Nisshin Steel Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an exterior wall structure excellent in fire preventing and fire resisting performance by using a metal panel material containing an organic core material for the exterior wall and a metal plate attached gypsum board to which a metal plate is adhered. <P>SOLUTION: The metal plate attached gypsum board which a metal plate 1b with 0.27 to 0.6mm in thickness consisting of a steel plate, an aluminum plate or a copperplate is adhered to at least one side of a gypsum board 1a locates the metal plate 1b on the indoor side and is fixed to a steel made-column 2 with a tapping screw 1c in a state to abut its circumference thereon, the metal panel material 3 containing the organic core material for the exterior wall is directly fixed to the metal plate attached gypsum board 1 on the outdoor side of the metal plate attached gypsum board 1 in a state to abut the neighboring part thereof, or it is fixed through a mounting accessary fixed on the outdoor side of the metal plate attached gypsum board 1, or it is directly fixed on the outdoor side of the steel made-column 2 and/or steel made horizontal furring strips or it is fixed through the mounting accessary fixed on the outdoor side of the steel made-column 2 and/or the steel made-horizontal furring strips. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【産業上の利用分野】
本発明は、外壁用有機芯材入り金属パネル材と金属板が接着された金属板付石膏ボードとを使用する外壁構造に関するものであって、従来の外壁材として外壁用有機芯材入り金属パネル材を使用しただけの場合や、外壁材として外壁用有機芯材入り金属パネル材を使用しその屋内側に石膏ボードを使用した場合に比べて格段に防火耐火性能に優れた外壁構造に関するものである。
【０００２】
【従来の技術】
建築物の外壁構造として防火耐火性能を有する外壁構造が要求されている。この防火耐火性能を具備させる方法としては、外壁材自体に防火耐火性能を持たせる防火耐火外壁構造や、柱の屋外側に防火耐火性能を有したボードなどを張ってその上に外壁材を張る防火耐火外壁構造や、柱の屋内側に防火耐火性能を有したボードなどを張ると共に柱の屋外側に外壁材を張る防火耐火外壁構造等があった。
【０００３】
このような防火耐火外壁構造に使用される防火耐火性能を有するボードとしては、一般的には焼石膏に種々の添加物と水とを混練して乾燥させたものを芯材とする石膏ボードが用いられており、この石膏ボードは火災時に高温に曝されると、石膏ボードの芯材に含まれている石膏（ＣａＳＯ４・２Ｈ２Ｏ）が熱分解し、石膏の結晶水（３／２Ｈ２Ｏ）が蒸発して徐々に焼石膏（ＣａＳＯ４・１／２Ｈ２Ｏ）へと化学変化を起こし、この結晶水が水蒸気となって徐々に放出されることによって、石膏ボード自体の温度の上昇を遅らせると共に熱伝導を軽減させるのである。
【０００４】
このような石膏ボードを用いて防火耐火性能を具備させる方法としては、柱及び間柱、又は胴縁上に石膏ボードを張り、この石膏ボード上に胴縁を固定して更にこの固定した胴縁上に金属、或いは窯業系のサイディングボードから成る外壁材を張り、石膏ボードの持つ上記防火耐火性能により外壁構造として防火耐火性能を向上させるという方法があった（例えば、特許文献１参照。）。また、石膏ボードの両面又は片面に厚さが３０〜１００μｍの金属薄板を貼り、石膏ボードの防火耐火性能を高める方法もあった（例えば、特許文献２参照。）。
【０００５】
しかしながら、柱及び間柱、又は胴縁上に石膏ボードを張り、この石膏ボード上に胴縁を固定して更にこの固定した胴縁上に金属、或いは窯業系のサイディングボードから成る外壁材を張るという方法では、外壁の屋外側を実際の火災を想定し加熱した場合において、先ず外壁材が熱せられて外壁材自体の温度が上昇し、次いで胴縁→石膏ボード→柱及び間柱、又は胴縁が加熱される態様になっており、石膏ボードは外壁材側よりの輻射熱により熱せられるが、前記したように石膏ボードに含有されている石膏の結晶水が水蒸気となって徐々に放出されることにより暫らくは石膏ボード自体の温度を１００℃以下に抑えることを期待したものであるが、この方法では石膏ボードの外壁材側に可燃物である木材から成る胴縁が存在するので、石膏ボード自体の温度を１００℃以下に抑える効果が少なく、その結果石膏ボードに含まれている石膏は急激に結晶水が蒸発して殆ど焼石膏へと化学変化を起こして石膏ボードの温度は１００℃以上となり、そして石膏の結晶水の蒸発に伴って石膏ボードの体積が収縮すると共に石膏ボード自体が脆くなることから、石膏ボードに亀裂が生じたり、石膏ボードがその亀裂によって崩れ落ちたりするという欠点があった。そして、石膏ボードにこのように亀裂が生じたり、石膏ボード自体が崩れ落ちたりすると、その亀裂の隙間や崩れ落ちた部分より熱が屋外側から屋内側に急速に入り込み、屋内側で延焼が生じることになるという欠点もあった。
【０００６】
また、石膏ボードの両面又は片面に厚さが３０〜１００μｍの金属薄板を貼る方法では、この金属薄板を貼った石膏ボードそのものでは、意匠性が無く外壁材としては使用できないという欠点があった。そして、この金属薄板を貼った石膏ボードと外壁材とを併用した場合には、石膏ボードに含有されている石膏の結晶水が水蒸気となって徐々に放出されることにより暫らくは石膏ボード自体の温度を１００℃以下に抑える効果が期待できるが、やがて石膏の結晶水の蒸発に伴って石膏ボードの体積が収縮すると共に石膏ボード自体が脆くなって亀裂が生じる現象が発生する。しかしながら、この石膏ボードは貼った厚さが３０〜１００μｍの金属薄板により石膏ボードの亀裂による崩れ落ちを若干は防止できるが、この金属薄板が薄いため強度が弱くこの崩れ落ちを充分に支えきれずに崩れ落ちが進行してしまったり、更に崩れ落ちが進行すると金属薄板に穴が開いてしまいここから熱が入り込んでしまったりするという欠点もあった。
【０００７】
【特許文献１】
特公平７−１５２０７号公報
【特許文献２】
特開２００１−６２９５４号公報
【０００８】
【発明が解決しようとする課題】
本発明は、前記従来技術の欠点を解消し、外壁用有機芯材入り金属パネル材と金属板が接着された金属板付石膏ボードとを使用する外壁構造であって、格段に防火耐火性能に優れた外壁構造を提供することを課題とする。
【０００９】
【課題を解決するための手段】
本発明者らは前記課題を解決すべく鋭意研究の結果、石膏ボードが少なくともその片面に鋼板，アルミ板又は銅板から成り板厚が０．２７〜０．６ｍｍである金属板が接着されている金属板付石膏ボードであってこの金属板付石膏ボードがその金属板を屋内側に配して鋼製柱及び／又は鋼製横胴縁にタッピンビスで固定されていれば、金属板付石膏ボードが加熱された際に石膏ボードに亀裂が生じたり、石膏ボードがその亀裂によって崩れ落ちたりすることを最小限に抑えることができ、そしてこの金属板付石膏ボードをその四周を当接させた状態で固定すると共に外壁用有機芯材入り金属パネル材をその隣接部分を当接された状態で金属板付石膏ボードの屋外側に固定する外壁構造であれば、意匠性を損なうことがないと共に熱が屋外側から屋内側に急速に入り込んで屋内側の延焼が生じる現象を最小限に抑えることができる防火耐火性能に優れた外壁構造を得ることができることを究明して本発明を完成したのである。
【００１０】
そして、金属板付石膏ボードをその金属板を屋内側に配して鋼製柱の屋外側に固定する場合には、外壁用有機芯材入り金属パネル材を、
鋼製柱の屋外側面上にその鋼製柱に至るタッピンビスで固定された金属板付石膏ボードの屋外側面上に鋼製柱に至るタッピンビスで、又はその金属板付石膏ボードの屋外側面上にその鋼製柱に至るタッピンビスで固定された取付け役物を介して固定したり、
鋼製柱の屋外側面上にその鋼製柱に直交して固定されている鋼製横胴縁の屋外側面上にその鋼製横胴縁に至るタッピンビスで固定された金属板付石膏ボードの屋外側面上にその鋼製横胴縁に至るタッピンビスで、又はその金属板付石膏ボードの屋外側面上にその鋼製横胴縁に至るタッピンビスで固定された取付け役物を介して固定したり、
隣合う鋼製柱の互いに対向する面に両端が固定されているその鋼製柱と直交する鋼製横胴縁の屋外側面上及び／又はその鋼製柱の屋外側面上にその鋼製横胴縁及び／又はその鋼製柱に至るタッピンビスで固定された金属板付石膏ボードの屋外側面上にその鋼製横胴縁及び／又はその鋼製柱に至るタッピンビスで、又はその金属板付石膏ボードの屋外側面上にその鋼製横胴縁及び／又はその鋼製柱に至るタッピンビスで固定された取付け役物を介して固定したりすれば、
施工性を損なうことなく、様々な施工方法や様々な構造や種類の金属パネル材に対応できると共に防火耐火性能に優れた外壁構造を得ることができて好ましいことも究明したのである。
【００１１】
また金属板付石膏ボードを鋼製柱の屋内側に固定する場合には、
金属板付石膏ボードをその金属板を屋内側に配して鋼製柱の屋内側面上にその鋼製柱に至るタッピンビスで固定すると共に外壁用有機芯材入り金属パネル材を、その鋼製柱の屋外側面上にその鋼製柱に至るタッピンビスで、又はその鋼製柱の屋外側面上にその鋼製柱に至るタッピンビスで直接固定された取付け役物を介して固定したり、
金属板付石膏ボードをその金属板を屋内側に配して鋼製柱の屋内側面上にその鋼製柱に至るタッピンビスで固定すると共に外壁用有機芯材入り金属パネル材を、その鋼製柱の屋外側面上にその鋼製柱に直交して固定されている鋼製横胴縁の屋外側面上にその鋼製横胴縁に至るタッピンビスで、又はその鋼製柱の屋外側面上にその鋼製柱に直交して固定されているその鋼製横胴縁の屋外側面上にその鋼製横胴縁に至るタッピンビスで直接固定された取付け役物を介して固定したり、金属板付石膏ボードをその金属板を屋内側に配して隣合う鋼製柱の互いに対向する面に両端が固定されているその鋼製柱と直交する鋼製横胴縁の屋内側面上及び／又はその鋼製柱の屋内側面上にその鋼製横胴縁及び／又はその鋼製柱に至るタッピンビスで固定すると共に外壁用有機芯材入り金属パネル材を、その鋼製横胴縁及び／又はその鋼製柱の屋外側面上にその鋼製横胴縁及び／又はその鋼製柱に至るタッピンビスで、又はその鋼製横胴縁及び／又はその鋼製柱の屋外側面上にその鋼製横胴縁及び／又はその鋼製柱に至るタッピンビスで直接固定された取付け役物を介して固定したりすれば、
施工性を損なうことなく、様々な施工方法や様々な構造や種類の金属パネル材に対応できると共に防火耐火性能に優れた外壁構造を得ることができて好ましいことも究明したのである。
【００１２】
また、上記した各種外壁構造において、鋼製柱の屋外側面上に鋼製柱に直交して鋼製横胴縁が固定されている態様や隣合う鋼製柱の互いに対向する面にその鋼製柱と直交して鋼製横胴縁の両端が固定されている態様の場合には、有機芯材入り金属パネル材を縦張りする場合でも横張りする場合でもその施工が容易であることも究明したのである。
【００１３】
更に、金属板付石膏ボード同士の垂直当接部位が鋼製柱の投影面上に位置していたり、金属板付石膏ボード同士の水平当接部位が鋼製横胴縁の投影面上に位置していたり、外壁用有機芯材入り金属パネル材同士の垂直当接部位が鋼製柱の投影面上に位置していたり、外壁用有機芯材入り金属パネル材同士の水平当接部位が鋼製横胴縁の投影面上に位置していたりすると、金属板付石膏ボードや外壁用有機芯材入り金属パネル材を強固に固定できるので好ましいのである。また、金属板付石膏ボード同士の垂直当接部位と外壁用有機芯材入り金属パネル材の垂直当接部位とが少なくとも水平方向に１０ｃｍ以上離れていたり、金属板付石膏ボード同士の水平当接部位と外壁用有機芯材入り金属パネル材の水平当接部位とが少なくとも垂直方向に１０ｃｍ以上離れていたりすると、防火耐火性能が比較的弱い部位であるそれぞれの当接部位が直接重なることがないので、防火耐火性能が増して好ましてのである。
【００１４】
このような金属板付石膏ボードや外壁用有機芯材入り金属パネル材を強固に固定できる態様や、金属板付石膏ボードや外壁用有機芯材入り金属パネル材の防火耐火性能が比較的弱い部位であるそれぞれの当接部位が直接重なることがない態様との組合せとして、金属板付石膏ボード同士の水平当接部位と外壁用有機芯材入り金属パネル材同士の水平当接部位とが少なくとも垂直方向に１０ｃｍ以上離れており、且つ金属板付石膏ボード同士の垂直当接部位と外壁用有機芯材入り金属パネル材同士の垂直当接部位とが鋼製柱の投影面上に位置していたり、金属板付石膏ボード同士の水平当接部位と外壁用有機芯材入り金属パネル材同士の水平当接部位とが鋼製横胴縁の投影面上に位置しており、且つ金属板付石膏ボード同士の垂直当接部位と外壁用有機芯材入り金属パネル材同士の垂直当接部位とが少なくとも水平方向に１０ｃｍ以上離れていたり、金属板付石膏ボード同士の垂直当接部位が鋼製柱の投影面上に位置しており、且つ外壁用有機芯材入り金属パネル材同士の水平当接部位が鋼製横胴縁の投影面上に位置していたり、更にこの場合に外壁用有機芯材入り金属パネル材同士の垂直当接部位が鋼製柱の投影面上に位置しており、且つ金属板付石膏ボード同士の水平当接部位が鋼製横胴縁の投影面上に位置していたりする態様がある。
【００１５】
更に、外壁用有機芯材入り金属パネル材の有機芯材がイソシアヌレート樹脂発泡体，フェノール樹脂発泡体又はウレタンフェノール樹脂発泡体より成るものであれば、加熱された際に有機芯材が融解することなく有機芯材自体が炭化することにより有機芯材が所定位置より脱落し難いので、熱輻射等により防火耐火性能が急激に低下することがなく好ましく、また外壁用有機芯材入り金属パネル材の有機芯材に無機繊維ネットが１〜３枚挿入されていれば、有機芯材が加熱された際に融解したり、炭化して亀裂が生じたりすることによって所定位置から脱落するのを最小限に防止することができるので好ましいことも究明したのである。
【００１６】
更に、外壁用有機芯材入り金属パネル材の厚さが２５ｍｍ〜５０ｍｍであれば、外壁用有機芯材入り金属パネル材の防火耐火性能と経済性施工性とが両立して好ましく、また金属板付石膏ボードが、石膏ボードの少なくとも片面に金属板が１００℃以上の耐熱性を有する接着剤で接着されている金属板付石膏ボードであれば、金属板付石膏ボードの防火耐火性能が向上して好ましいことも究明したのである。
【００１７】
【発明の実施の態様】
以下、図面により本発明に係る防火耐火性能に優れた外壁構造について詳細に説明する。
図１は本発明に係る防火耐火性能に優れた外壁構造に使用する金属板付石膏ボードの構造例を示す断面説明図、図２は本発明に係る防火耐火性能に優れた外壁構造において金属板付石膏ボードを鋼製柱の屋外側に固定した状態例を示す側断面説明図、図３は本発明に係る防火耐火性能に優れた外壁構造の１実施例における施工状態を示す斜視説明図、図４は図３の防火耐火性能に優れた外壁構造を示す側断面説明図、図５は取付け役物を使用した本発明に係る防火耐火性能に優れた外壁構造の他の実施例における施工状態を示す斜視説明図、図６は図５の防火耐火性能に優れた外壁構造を示す側断面説明図、図７は本発明に係る防火耐火性能に優れた外壁構造の更に他の実施例における施工状態を示す斜視説明図、図８は図７の防火耐火性能に優れた外壁構造を示す側断面説明図、図９は取付け役物を使用した本発明に係る防火耐火性能に優れた外壁構造の更に他の実施例における施工状態を示す斜視説明図、図１０は図９の防火耐火性能に優れた外壁構造を示す側断面説明図、図１１は本発明に係る防火耐火性能に優れた外壁構造の更に他の実施例における施工状態を示す斜視説明図、図１２は本発明に係る防火耐火性能に優れた外壁構造の更に他の実施例における施工状態を示す斜視説明図、図１３は本発明に係る防火耐火性能に優れた外壁構造の更に他の実施例における施工状態を示す斜視説明図、図１４は図１３の防火耐火性能に優れた外壁構造を示す側断面説明図、図１５は本発明に係る防火耐火性能に優れた外壁構造の更に他の実施例における施工状態を示す斜視説明図、図１６は本発明に係る防火耐火性能に優れた外壁構造の更に他の実施例における施工状態を示す斜視説明図、図１７は本発明に係る防火耐火性能に優れた外壁構造に使用する有機芯材に無機繊維ネットが挿入されている外壁用有機芯材入り金属パネル材の構造の１例を示す断面説明図、図１８は実施例及び比較例の外壁構造に対して有機芯材入り金属パネル材の屋外側から加熱した温度曲線を示す図、図１９は実施例１〜３，比較例１〜２の外壁構造における石膏ボードの屋内側面の温度変化を示す図、図２０は実施例４〜５及び比較例３の外壁構造における石膏ボードの屋内側面の温度変化を示す図である。
【００１８】
図面中、１は石膏ボード１ａの少なくとも片面に鋼板，アルミ板又は銅板から成り板厚が０．２７〜０．６ｍｍである金属板１ｂが接着剤で接着されており、その四周を当接させた状態で金属板１ｂを屋内側に配して後述する鋼製柱２及び／又は鋼製横胴縁２ａに至るタッピンビス１ｃで固定される金属板付石膏ボードであり、この石膏ボード１ａとしては一般に市販されているＪＩＳ　Ａ６９０１「せっこうボード製品」で規定されている「主原料のせっこうを芯としてその両面及び長さ方向（形成時の流れ方向）の側面をせっこうボード用原紙で被覆されたもの」が好ましく使用できるが、せっこうボード用原紙が被覆されていないものであってもよい。尚、図示した各実施例ではせっこうボード用原紙は省略した。
【００１９】
この石膏ボード１ａの少なくとも片面に接着される金属板１ｂは、金属板付石膏ボード１が加熱された際に石膏ボード１ａが収縮することにより石膏ボード１ａに亀裂が生じてその亀裂によって崩れ落ちたりしないように石膏ボード１ａを支持して、石膏ボード１ａの崩れ落ちを最小限に抑える役目を果たすものであり、この金属板１ｂとしては、鋼板，アルミ板又は銅板の何れから成るものであっても、強度及び防火耐火性の観点よりその板厚が０．２７ｍｍ以上のものであることが必要があり、また金属板付石膏ボード１の全体の重量の軽量化の観点より０．６ｍｍ以下のものであることが必要である。
【００２０】
また、この金属板１ｂを石膏ボード１ａの少なくとも片面に接着する接着剤としては、金属板１ｂと石膏ボード１ａとを接着させることができる性質を有する接着剤であれば何でもよいが、この接着剤が１００℃以上の耐熱性を有する接着剤であれば、金属板付石膏ボード１の防火耐火性能が向上して好ましい。そして、１００℃以上の耐熱性を有する接着剤としては、珪酸アルカリ水溶液系接着剤，ポリベンズイミダゾール樹脂系接着剤，ポリイミド樹脂系接着剤等の耐熱性を有する接着剤が好ましく使用される。
【００２１】
このような接着剤によって石膏ボード１ａの少なくとも片面に金属板１ｂを接着して金属板付石膏ボード１を形成する際には、図１（ａ）に示す如く石膏ボード１の片面のみを覆うように平板状の金属板１ｂを接着することによって金属板付石膏ボード１を形成してもよいが、図１（ｂ）及び（ｃ）に示す如く石膏ボード１ａの四周の端縁部の一部又は全体が覆われるようにその四周の端部を折り曲げられた金属板１ｂを接着することによって金属板付石膏ボード１を形成すれば、金属板付石膏ボード１全体の防火耐火性能及び強度が増して好ましい。
【００２２】
２は金属板付石膏ボード１，それぞれ後述する外壁用有機芯材入り金属パネル材３，取付け役物４，鋼製横胴縁２ａ等が固定される鋼製柱であって、Ｈ型鋼，角型鋼，Ｃ型鋼等が使用される。この鋼製柱２は、固定される部材の中で通常は単位面積当たりの重量が重い金属板付石膏ボード１の幅に合わせて立設されていることが好ましい。
【００２３】
３はその隣接部分を当接された状態で固定されている外壁用有機芯材入り金属パネル材であって、金属板１ｂを屋内側に配してその四周を当接させた状態で屋内側に固定された金属板付石膏ボード１と共同して、熱が屋外側から屋内側に急速に入り込んで屋内側の延焼が生じる現象を最小限に抑える役目を果たす。
【００２４】
この外壁用有機芯材入り金属パネル材３としては、発泡有機系樹脂が芯材として使用されている金属サイディングや金属サンドイッチパネル等が用いられ、そしてこの有機芯材入り金属パネル材３の四周の端縁部の形状は嵌合部が存在しないフラットな端縁部であってもよいが、この四周の端縁部に上下及び／又は左右に隣接する有機芯材入り金属パネル材３と係合するための嵌合部が形成されていたり、後述する取付け役物４と係合できるように形成されていたりすれば、施工性が良くなるので好ましい。
【００２５】
そして、この外壁用有機芯材入り金属パネル材３の有機芯材としては、ウレタン樹脂発泡体やポリスチレン樹脂発泡体等の加熱された際に融解する樹脂発泡体より成るものであってもよいが、イソシアヌレート樹脂発泡体，フェノール樹脂発泡体又はウレタンフェノール樹脂発泡体より成るものであれば、加熱された際に融解することなく有機芯材自体が炭化することにより、有機芯材が所定位置より脱落し難いので、熱輻射等により防火耐火性能が急激に低下することがなく好ましい。また、この外壁用有機芯材入り金属パネル材３の有機芯材に、図１７に示す如く無機繊維ネット３ｄが１〜３枚挿入されていれば、有機芯材が加熱された際に融解したり、炭化して亀裂が生じたりすることによって所定位置から脱落するのを最小限に防止することができるので、外壁用有機芯材入り金属パネル材３の防火耐火性能が更に向上して好ましい。
【００２６】
また、外壁用有機芯材入り金属パネル材３の厚さは、２５ｍｍ未満であると加熱により融解したり炭化して亀裂が生じたりした場合に亀裂等が早期に反対面にまで達して防火耐火性能上好ましくなく、また５０ｍｍを超えると製造コストが増すと共に重量が増して経済性及び施工性が悪化してしまうので、外壁用有機芯材入り金属パネル材３の厚さは２５ｍｍ〜５０ｍｍであることが好ましい。
【００２７】
４は鋼製柱２の屋外側面上及び／又は鋼製横胴縁２ａの屋外側面上に固定された金属板付石膏ボード１の屋外側面上に鋼製柱２及び／又は鋼製横胴縁２ａに至るタッピンビス４ａで固定されたり、金属板付石膏ボード１が鋼製柱２の屋内側面上及び／又は鋼製横胴縁２ａの屋内側面上に固定されている場合に鋼製柱２及び／又は鋼製横胴縁２ａの屋外側面上に鋼製柱２及び又は鋼製横胴縁２ａに至るタッピンビス４ａで直接固定されていたりする取付け役物であって、固定される外壁用有機芯材入り金属パネル材３がこの取付け役物４と係合できるように形成されている場合に用いられる。
【００２８】
そして、このような各構成部材を用いて外壁用有機芯材入り金属パネル材３を固定する態様としては、金属板付石膏ボード１がその金属板１ｂを屋内側に配して鋼製柱２の屋外側に固定される場合には、鋼製柱２の屋外側面上にその鋼製柱２に至るタッピンビス１ｃで固定された金属板付石膏ボード１の屋外側面上に、外壁用有機芯材入り金属パネル材３を図３及び図４に示す如くその鋼製柱２に至るタッピンビス３ａで、又は図５及び図６に示す如くその金属板付石膏ボード１の屋外側面上にその鋼製柱２に至るタッピンビス４ａで固定された取付け役物４を介して固定する態様（以下、「第１態様」ということがある請求項１に対応した態様である）がある。
この第１態様は、外壁用有機芯材入り金属パネル材３をその長手方向を水平にして固定する場合において好ましい。そして、第１態様の場合に使用される外壁用有機芯材入り金属パネル材３は、通常は金属板付石膏ボード１よりも外壁用有機芯材入り金属パネル材３の方が単位面積当たりの重さが軽いので、その長手方向の長さが鋼製柱２が立設される間隔の整数倍の長さに形成されていれば、施工性を損なうことなく経済的であるので好ましい。
【００２９】
また、鋼製柱２の屋外側面上にその鋼製柱２に直交して固定されている鋼製横胴縁２ａの屋外側面上にその鋼製横胴縁２ａに至るタッピンビス１ｃで固定された金属板付石膏ボード１の屋外側面上に、外壁用有機芯材入り金属パネル材３を図７，図８及び図１１に示す如くその鋼製横胴縁２ａに至るタッピンビス３ａで、又は図９，図１０に示す如く金属板付石膏ボード１の屋外側面上にその鋼製横胴縁２ａに至るタッピンビス４ａで固定された取付け役物４を介して固定する態様（以下、「第２態様」ということがある請求項２に対応した態様である）がある。
この第２態様は、外壁用有機芯材入り金属パネル材３をその長手方向を垂直にして固定する場合において好ましい。これは、前記第１態様において外壁用有機芯材入り金属パネル材３をその長手方向を垂直にして固定することも可能であるが、この場合には鋼製柱２が立設される間隔を外壁用有機芯材入り金属パネル材３の幅方向の長さにしなければ外壁用有機芯材入り金属パネル材３を鋼製柱２に至るタッピンビス３ａ等で固定することができないので、固定される外壁用有機芯材入り金属パネル材３の幅方向の長さが短いければ短い程、鋼製柱２の本数を増やさなければならならず不経済であるが、この第２態様の場合には、外壁用有機芯材入り金属パネル材３は鋼製柱２の屋外側面上にその鋼製柱２に直交して固定されている鋼製横胴縁２ａの屋外側面上にその鋼製横胴縁２ａに至るタッピンビス３ａ等で固定されるので、外壁用有機芯材入り金属パネル材３の幅方向の長さや鋼製柱２が立設される間隔に関係なく外壁用有機芯材入り金属パネル材３をその長手方向を垂直にして固定することができるからである。
【００３０】
更に、隣合う鋼製柱２の互いに対向する面に両端が固定されているその鋼製柱２と直交する鋼製横胴縁２ａの屋外側面上及び／又はその鋼製柱２の屋外側面上にその鋼製横胴縁２ａ及び／又はその鋼製柱２に至るタッピンビス１ｃで固定された金属板付石膏ボード１の屋外側面上に、外壁用有機芯材入り金属パネル材３を図１２に示す如くその鋼製横胴縁２ａ及び／又はその鋼製柱２に至るタッピンビス３ａで、又は図示しないがその金属板付石膏ボード１の屋外側面上にその鋼製横胴縁２ａ及び／又はその鋼製柱２に至るタッピンビス４ａで固定された取付け役物４を介して固定したりする態様（以下、「第３態様」ということがある請求項３に対応した態様である）がある。
この第３態様は、外壁用有機芯材入り金属パネル材３をその長手方向を水平にして固定する場合のみならず外壁用有機芯材入り金属パネル材３をその長手方向を垂直にして固定する場合にも、外壁用有機芯材入り金属パネル材３を固定する際の施工性を損なうことなく対応することができて好ましい。そして、この第３態様において、隣合う鋼製柱２の互いに対向する面にその鋼製柱２と直交して両端が固定されている鋼製横胴縁２ａの屋外側面は、鋼製柱２の屋外側面よりも屋内側又は屋外側に位置していてもよいが、図１２に示す如く鋼製横胴縁２ａの屋外側面と鋼製柱２の屋外側面とが同一平面上に一致して形成されていれば、金属板付石膏ボード１や外壁用有機芯材入り金属パネル材３をより安定して固定することができるので好ましい。
【００３１】
また、金属板付石膏ボード１が鋼製柱２の屋内側に固定される場合には、図１３及び図１４に示す如く金属板付石膏ボード１をその金属板１ｂを屋内側に配して鋼製柱２の屋内側面上にその鋼製柱２に至るタッピンビス１ｃで固定すると共に外壁用有機芯材入り金属パネル材３をその鋼製柱２の屋外側面上にその鋼製柱２に至るタッピンビス３ａで、又は図示しないがその鋼製柱２の屋外側面上にその鋼製柱２に至るタッピンビス４ａで直接固定された取付け役物４を介して固定する態様（以下、「第４態様」ということがある請求項４に対応した態様である）がある。
この第４態様は、第１態様と同様に外壁用有機芯材入り金属パネル材３をその長手方向を水平にして固定する場合において好ましい。
【００３２】
また、図１５に示す如く金属板付石膏ボード１をその金属板１ｂを屋内側に配して鋼製柱２の屋内側面上にその鋼製柱２に至る図示しないタッピンビス１ｃで固定すると共に外壁用有機芯材入り金属パネル材３をその鋼製柱２の屋外側面上にその鋼製柱２に直交して固定されている鋼製横胴縁２ａの屋外側面上にその鋼製横胴縁２ａに至るタッピンビス３ａで、又は図示しないがその鋼製柱２の屋外側面上にその鋼製柱２に直交して固定されているその鋼製横胴縁２ａの屋外側面上にその鋼製横胴縁２ａに至るタッピンビス４ａで直接固定された取付け役物４を介して固定する態様（以下、「第５態様」ということがある請求項５に対応した態様である）がある。
この第５態様は、第２態様と同様に外壁用有機芯材入り金属パネル材３をその長手方向を垂直にして固定する場合において好ましい。
【００３３】
更に、図１６に示す如く金属板付石膏ボード１をその金属板１ｂを屋内側に配して隣合う鋼製柱２の互いに対向する面に両端が固定されているその鋼製柱２と直交する鋼製横胴縁２ａの屋内側面上及び／又はその鋼製柱２の屋内面上にその鋼製横胴縁２ａ及び／又はその鋼製柱２に至る図示しないタッピンビス１ｃで固定すると共に外壁用有機芯材入り金属パネル材３をその鋼製横胴縁２ａ及び／又はその鋼製柱２の屋外側面上にその鋼製横胴縁２ａ及び／又はその鋼製柱２に至るタッピンビス３ａで、又は図示しないがその鋼製横胴縁２ａ及び／又はその鋼製柱２の屋外側面上にその鋼製横胴縁２ａ及び／又はその鋼製柱２に至るタッピンビス４ａで直接固定された取付け役物４を介して固定したりする態様（以下、「第６態様」ということがある請求項６に対応した態様である）がある。
この第６態様は、第３態様と同様に外壁用有機芯材入り金属パネル材３をその長手方向を水平にして固定する場合のみならず外壁用有機芯材入り金属パネル材３をその長手方向を垂直にして固定する場合にも、外壁用有機芯材入り金属パネル材３を固定する際の施工性を損なうことなく対応することができて好ましい。そして、この第６態様において、隣合う鋼製柱２の互いに対向する面にその鋼製柱２と直交して両端が固定されている鋼製横胴縁２ａの屋外側面は、鋼製柱２の屋外側面よりも屋内側又は屋外側に位置していてもよく、また隣合う鋼製柱２の互いに対向する面にその鋼製柱２と直交して両端が固定されている鋼製横胴縁２ａの屋内側面も、鋼製柱２の屋内側面よりも屋内側又は屋外側に位置していてもよいが、鋼製横胴縁２ａの屋外側面と鋼製柱２の屋外側面とが同一平面上に一致して形成されていたり、鋼製横胴縁２ａの屋内側面と鋼製柱２の屋内側面とが同一平面上に一致して形成されていたりすれば、それぞれの面に固定される金属板付石膏ボード１や外壁用有機芯材入り金属パネル材３をより安定して固定することができるので好ましい。
【００３４】
このような各種態様の本発明に係る防火耐火性能に優れた外壁構造は、最も屋外側に外壁用有機芯材入り金属パネル材３が配される構造であるので、屋外側の意匠性が高いばかりでなく外壁用有機芯材入り金属パネル材３の内外面が金属製であるので外壁構造全体の防火耐火性能も高い。
【００３５】
そして、このような本発明に係る防火耐火性能に優れた外壁構造の第１態様や第３態様や第４態様や第６態様において、図３及び図１３に示す如く金属板付石膏ボード１，１同士の水平当接部位１ｄと外壁用有機芯材入り金属パネル材３，３同士の水平当接部位３ｂとが少なくとも垂直方向に１０ｃｍ以上離れており且つ金属板付石膏ボード１，１同士の垂直当接部位１ｅと外壁用有機芯材入り金属パネル材３，３同士の垂直当接部位３ｃとが鋼製柱２の投影面上に位置していれば、防火耐火性能が比較的弱い部位であるそれぞれの当接部位が直接重なることがないので防火耐火性能が増して好ましい。
【００３６】
また第２態様や第３態様や第６態様において、図１１及び図１６に示す如く金属板付石膏ボード１，１同士の水平当接部位１ｄと外壁用有機芯材入り金属パネル材３，３同士の水平当接部位３ｂとが鋼製横胴縁２ａの投影面上に位置しており且つ金属板付石膏ボード１，１同士の垂直当接部位１ｅと外壁用有機芯材入り金属パネル材３，３同士の垂直当接部位３ｃとが少なくとも水平方向に１０ｃｍ以上離れていれば、同様に防火耐火性能が比較的弱い部位であるそれぞれの当接部位が直接重なることがないので防火耐火性能が増して好ましい。
【００３７】
更に第３態様や第５態様や第６態様において、図１５に示す如く金属板付石膏ボード１，１同士の垂直当接部位１ｅが鋼製柱２の投影面上に位置しており且つ外壁用有機芯材入り金属パネル材３，３同士の水平当接部位３ｂが鋼製横胴縁２ａの投影面上に位置していれば、同様に防火耐火性能が比較的弱い部位であるそれぞれの当接部位が直接重なることがないので防火耐火性能が増して好ましく、更にこの態様において、図１２に示す如く外壁用有機芯材入り金属パネル材３，３同士の垂直当接部位３ｃが鋼製柱２の投影面上に位置しており且つ金属板付石膏ボード１，１同士の水平当接部位１ｄが鋼製横胴縁２ａの投影面上に位置していたりすれば、外壁用有機芯材入り金属パネル材３や金属板付石膏ボード１の固定が強固となるので好ましい。
【００３８】
このように上記各態様において、金属板付石膏ボード１，１同士の水平当接部位１ｄと外壁用有機芯材入り金属パネル材３，３同士の水平当接部位３ｂ、及び金属板付石膏ボード１，１同士の垂直当接部位１ｅと外壁用有機芯材入り金属パネル材３，３同士の垂直当接部位３ｃが、それぞれ鋼製柱２や鋼製横胴縁２ａの投影面上に位置するか、又は水平方向若しくは垂直方向に１０ｃｍ以上離れているから、防火耐火性能が比較的弱い部位であるそれぞれの当接部位が直接重なることがないので、防火耐火性能が増して好ましい。
【００３９】
このような各種態様の本発明に係る防火耐火性能に優れた外壁構造の施工方法について説明する。
初めに、金属板付石膏ボード１が鋼製柱２の屋外側に固定される態様について説明する。
先ず、鋼製柱２のみで構成されている第１態様の場合（鋼製横胴縁２ａが設けられていない場合）には、その鋼製柱２の屋外側面上に金属板付石膏ボード１をその四周を当接させた状態で金属板１ｂを屋内側に配して、その鋼製柱２に至るタッピンビス１ｃで固定した後に、外壁用有機芯材入り金属パネル材３をその隣接部分を当接させた状態で固定された金属板付石膏ボード１の屋外側面上に、図３及び図４に示す如く金属板付石膏ボード１を貫通して鋼製柱２に至るタッピンビス３ａで、又は図５及び図６に示す如く金属板付石膏ボード１を貫通して鋼製柱２に至るタッピンビス４ａで固定された取付け役物４を介して固定する。
【００４０】
また、鋼製柱２の屋外側面上にその鋼製柱２に直交して固定されている鋼製横胴縁２ａがある第２態様の場合には、その鋼製横胴縁２ａの屋外側面上に金属板付石膏ボード１をその四周を当接させた状態で金属板１ｂを屋内側に配して、鋼製横胴縁２ａの屋外側面上にその鋼製横胴縁２ａに至るタッピンビス１ｃで固定した後に、外壁用有機芯材入り金属パネル材３をその隣接部分を当接させた状態で固定された金属板付石膏ボード１の屋外側面上に、図７及び図８に示す如く金属板付石膏ボード１を貫通して鋼製横胴縁２ａに至るタッピンビス３ａで、又は図９に示す如く金属板付石膏ボード１を貫通して鋼製横胴縁２ａに至るタッピンビス４ａで固定された取付け役物４を介して固定する。
【００４１】
また、隣合う鋼製柱２の互いに対向する面に両端が固定されているその鋼製柱２と直交する鋼製横胴縁２ａがある第３態様の場合には、その鋼製横胴縁２ａの屋外側面上及び／又は鋼製柱２の屋外側面上に金属板付石膏ボード１をその四周を当接させた状態で金属板１ｂを屋内側に配して、その鋼製横胴縁２ａ及び／又は鋼製柱２に至るタッピンビス１ｃで固定した後に、外壁用有機芯材入り金属パネル材３をその隣接部分を当接させた状態で固定された金属板付石膏ボード１の屋外側面上に、図１２に示す如く金属板付石膏ボード１を貫通して鋼製横胴縁２ａ及び／又は鋼製柱２に至るタッピンビス３ａで、又は図示しないが金属板付石膏ボード１を貫通して鋼製横胴縁２ａ及び／又は鋼製柱２に至るタッピンビス４ａで固定された取付け役物４を介して固定する。
【００４２】
そして、これら第１態様，第２態様や第３態様において金属板付石膏ボード１を固定する際、金属板付石膏ボード１が図１（ｃ）に示す如く石膏ボード１ａの四周の端縁部の一部が覆われるようにその四周の端部を折り曲げられた金属板１ｂが接着されて形成されている場合には、図２（ａ）に示す如く隣接して当接される金属板付石膏ボード１，１間に金属板１ｂが短い分だけ隙間が生じるが、固定された金属板付石膏ボード１，１間の屋内側には隙間が生じないのでこの状態でもよいが、図２（ｂ）に示す如くこの隙間を閉塞するように耐熱性を有するテープ１ｆを貼り付けたり、また図２（ｃ）に示す如くこの隙間を閉塞するように耐熱性を有するコーキング材１ｇを注入したりすれば、更に防火耐火性能が増すので好ましい。また、図１（ａ）及び図１（ｂ）に示すような端縁部がフラットな形状である金属板付石膏ボード１，１を当接させた場合においては、前記図２（ａ）の如き隙間は生じないが、このような金属板付石膏ボード１，１が当接された部位にも、耐熱性を有するテープ１ｆを貼り付ければ、更に防火耐火性能が増すので好ましい。尚、耐熱性を有するテープ１ｆを貼り付ける場合には、図示しないが金属板１ｂ側に貼り付けてもよい。
【００４３】
次に、金属板付石膏ボード１が鋼製柱２の屋内側に固定される態様について説明する。
先ず、鋼製柱２のみで構成されている第４態様の場合（鋼製横胴縁２ａが設けられていない場合）には、図１３及び図１４に示す如くその鋼製柱２の屋内側面上に金属板付石膏ボード１をその四周を当接させた状態で金属板１ｂを屋内側に配して、その鋼製柱２に至るタッピンビス１ｃで固定し、有機芯材入り金属パネル材３をその隣接部分を当接された状態で鋼製柱２の屋外側面上に鋼製柱２に至るタッピンビス３ａで、又は図示しないが鋼製柱２の屋外側面上に鋼製柱２に至るタッピンビス４ａで直接固定された取付け役物４を介して固定する。
【００４４】
また、鋼製柱２の屋外側面上にその鋼製柱２に直交して固定されている鋼製横胴縁２ａがある第５態様の場合には、その鋼製柱２の屋内側面上に金属板付石膏ボード１をその四周を当接させた状態で金属板１ｂを屋内側に配して、その鋼製柱２に至る図示しないタッピンビス１ｃで固定し、有機芯材入り金属パネル材３をその隣接部分を当接された状態で図１５に示す如く鋼製横胴縁２ａの屋外側面上に鋼製横胴縁２ａに至るタッピンビス３ａで、又は図示しないが鋼製横胴縁２ａの屋外側面上に鋼製横胴縁２ａに至るタッピンビス４ａで直接固定された取付け役物４を介して固定する。
【００４５】
また、隣合う鋼製柱２の互いに対向する面に両端が固定されているその鋼製柱２と直交する鋼製横胴縁２ａがある第６態様の場合には、図１６に示す如くその鋼製横胴縁２ａの屋内側面上及び／又は鋼製柱２の屋内側面上に金属板付石膏ボード１をその四周を当接させた状態で金属板１ｂを屋内側に配して、その鋼製横胴縁２ａ及び／又は鋼製柱２に至る図示しないタッピンビス１ｃで固定し、有機芯材入り金属パネル材３をその隣接部分を当接された状態で鋼製横胴縁２ａの屋外側面上及び／又は鋼製柱２の屋外側面上に鋼製横胴縁２ａ及び／又は鋼製柱２に至るタッピンビス３ａで、又は図示しないが鋼製横胴縁２ａの屋外側面上及び／又は鋼製柱２の屋外側面上に鋼製横胴縁２ａ及び／又は鋼製柱２に至るタッピンビス４ａで直接固定された取付け役物４を介して固定する。
【００４６】
そして、これら第４態様，第５態様や第６態様において金属板付石膏ボード１を固定する際、前記したように金属板付石膏ボード１，１間に図２（ａ）に示すような隙間が生じた場合には、図２（ｂ）に示すような耐熱性を有するテープ１ｆを貼り付けたり、図２（ｃ）に示すような耐熱性を有するコーキング材１ｇを注入したりしてその隙間を閉塞してもよく、また金属板付石膏ボード１，１間に隙間が生じない場合であっても、隣接する金属板付石膏ボード１同士の当接している部位に耐熱性を有するテープ１ｆを貼り付けたりしてもよい。
【００４７】
かくして、様々な態様の本発明に係る防火耐火性能に優れた外壁構造が施工され、そしてこのように施工される本発明に係る防火耐火性能に優れた外壁構造は施工性に優れていると共に様々な構造や種類の金属パネル材を横張りする場合にも縦張りする場合にも対応できるのである。
【００４８】
【実施例】
次に、実施例及び比較例によって更に本発明に係る防火耐火性能に優れた外壁構造について説明する。
先ず、実施例１として幅９１０ｍｍ，高さ１，８２０ｍｍ，厚さ１２．５ｍｍの石膏ボード１ａ（商品名：タイガーボードＴＢ，吉野石膏社製）の片面に厚さ０．２７ｍｍの鋼板から成る金属板１ｂをクロロプレン系接着剤（商品名：ダイヤボンド　ＤＣ６００９，ＳＰ，ノガワケミカル社製）で接着した。この際、石膏ボード１ａの四周の端縁部の一部が覆われるようにその四周の端部を折り曲げられた金属板１ｂを接着することによって図１（ｃ）に示したような金属板付石膏ボード１を形成した。また、外壁用有機芯材入り金属パネル材３としては、有機芯材がイソシアヌレート樹脂発泡体より成るものであって、上縁部及び下縁部にそれぞれ嵌合部を有した金属サンドイッチパネルから成り厚さが２５ｍｍのもの（商品名：月星タイトパネル，日新総合建材社製）を使用した。そして、前記金属板付石膏ボード１を図２（ａ）に示すように金属板１ｂを屋内側に配して鋼製柱２の屋外側面上に鋼製柱２に至るタッピンビス１ｃで固定すると共に、この固定された金属板付石膏ボード１の屋外側面上に前記外壁用有機芯材入り金属パネル材３を鋼製柱２に至るタッピンビス３ａで固定した。この際、金属板付石膏ボード１，１同士の水平当接部位１ｄと外壁用有機芯材入り金属パネル材３，３同士の水平当接部位３ｂとは垂直方向で同一高さにあり、且つ金属板付石膏ボード１，１同士の垂直当接部位１ｅと外壁用有機芯材入り金属パネル材３，３同士の垂直当接部位３ｃとが鋼製柱２の投影面上に位置するように金属板付石膏ボード１と有機芯材入り金属パネル材３とを固定した。
【００４９】
実施例２として、外壁用有機芯材入り金属パネル材２として有機芯材にガラス繊維ネットより成る無機繊維ネット３ｄが１枚挿入されたものを使用した以外は、実施例１と同様のものとした。
【００５０】
実施例３として、金属板付石膏ボード１，１同士の水平当接部位１ｄと外壁用有機芯材入り金属パネル材３，３同士の水平当接部位３ｂとが垂直方向に１０ｃｍ離れるように固定した以外は、実施例１と同様のものとした。
【００５１】
一方比較例１として、金属板が存在していない前記実施例１と同じ石膏ボード１ａを使用した以外は実施例１と同様ものとした。
【００５２】
また比較例２として、前記実施例１と同じ石膏ボードの片面に厚さ１００μｍの鋼板を図１（ｃ）に示す如く石膏ボードの四周の端縁部の一部が覆われるようにその四周の端部を折り曲げて前記接着剤で接着され石膏ボード１ａを使用した以外は実施例１と同様ものとした。
【００５３】
このような実施例１〜３，比較例１〜２の外壁構造に対して、外壁用有機芯材入り金属パネル材３の屋外側から図１８に示すような温度曲線で加熱して、加熱側の反対側となる石膏ボードの屋内側の面（実施例１〜３及び比較例２では金属板の屋内側の面、比較例１では石膏ボードの屋内側の面）の温度を測定する防火耐火性能試験を行った。この防火耐火性能試験の結果を、加熱側の反対側となる石膏ボードの屋内側の面の最大温度の経時変化を図１９に示す。
【００５４】
金属板が存在していない石膏ボードである比較例１は、加熱開始後２０分で急激な温度上昇が認められ、そして石膏ボードの一部には亀裂が生じた部位が認められ、更に石膏ボード自体が崩れ落ちた部位も認められた。このように石膏ボード自体が崩れ落ちる現象が発生すると、実建築物件での屋外側の火災を想定した場合に、仮りにこの石膏ボード自体が崩れ落ちた部位の付近の屋内側に可燃物があったとすれば、その可燃物は発火し屋内側での火災が起きる危険性が高いのである。
【００５５】
また、石膏ボードの片面に厚さ１００μｍの鋼板を接着した石膏ボードである比較例２は、加熱開始後２５分で急激な温度上昇が認められた。そして、前記比較例１と同様に石膏ボードの一部には亀裂が生じた部位が認められ、更に石膏ボード自体が崩れ落ちた部位も認められた。また、石膏ボード自体が崩れ落ちた部位は、外壁用有機芯材入り金属パネル材３，３同士の水平当接部位３ｂの位置に対応する部位であり、この水平当接部位３ｂは最も防火耐火性能に弱い部位であるのでこの部位で石膏ボードの崩れ落ちが発生したのではないかと考えられる。また、この比較例２では前記比較例１よりも若干の効果があったが、鋼板の厚さが１００μｍと薄いために剛性及び強度が弱く石膏ボードに崩れ落ちが起きると同時に、その衝撃により鋼板に穴が開くという現象も認められた。
【００５６】
これに対し、石膏ボード１ａの片面に厚さ０．２７ｍｍの鋼板から成る金属板１ｂが接着されている金属板付石膏ボード１である実施例１は、加熱開始４５分後に急激な温度上昇が認められた。これは石膏ボード１ａ中に含まれている石膏の水が蒸発して殆ど焼石膏へと化学変化を起こして石膏の結晶水の冷却作用が無くなった後に、石膏ボード１ａの一部には亀裂が生じたり、更に石膏ボード１ａ自体が崩れ落ちたりする部位が発生しなかったためである。そして、石膏ボード１ａの片面に厚さ１００μｍの鋼板を接着された石膏ボードである比較例２のように鋼板に穴が開かなかった。これは、実施例１の金属板付石膏ボード１の厚さ０．２７ｍｍという板厚の厚い鋼板１ｂにより石膏ボード１ａの崩れ落ちが防止されると共に穴あきが防止されたことに起因していると考えられる。
【００５７】
また、実施例２は加熱開始５０分後に急激な温度上昇が認められた。これは外壁用有機芯材入り金属パネル材３の有機芯材に無機繊維ネット３ｄが１枚挿入されていることにより、イソシアヌレート樹脂発泡体より成る有機芯材には加熱により炭化し収縮して亀裂が生じたものの、この有機芯材に挿入されている無機繊維ネット３ｄによりその亀裂の進行が抑制され有機芯材が所定位置から脱落するのを最小限に防止したために、屋外側から屋内側へ熱が伝わるのを緩和させたことに起因すると考えられる。
【００５８】
更に、実施例３は加熱開始５５分近くまで急激な温度上昇は認められなかった。これは、最も防火耐火性能に弱い部位である金属板付石膏ボード１，１同士の水平当接部位１ｄと外壁用有機芯材入り金属パネル３，３同士の水平当接部位３ｂとが垂直方向に１０ｃｍ離れるように固定されているために、屋外側から屋内側へ熱が伝わり難くなったことに起因すると考えられる。
【００５９】
このように本発明に係る防火耐火性能に優れた外壁構造である実施例１〜３の場合は、石膏ボード１ａの片面に厚さ０．２７ｍｍの鋼板から成る金属板１ｂが接着されている金属板付石膏ボード１を使用しているので、加熱開始後に急激な温度上昇が認められるまでの時間が、金属板が接着されていない石膏ボードである比較例１や厚さが１００μｍの鋼板が接着されている比較例２に比較して長く、また石膏ボード１ａの崩れ落ちが防止されると共に穴あきも防止され、従来の外壁構造と比較して優れた防火耐火効果を奏していることが確認できた。
【００６０】
また、実施例２のように外壁用有機芯材入り金属パネル材３の有機芯材に無機繊維ネット３ｄを挿入したり、実施例３のように防火耐火性能が比較的弱い部位であるそれぞれの当接部位が直接重ならないようにしたりすれば、更に優れた防火耐火効果が増して好ましいことも確認できた。
【００６１】
次に実施例４として、石膏ボード１ａの片面に厚さ０．２７ｍｍの鋼板から成る金属板１ｂが接着されている前記実施例１と全く同様の金属板付石膏ボード１を形成し、この金属板付石膏ボード１をその四周を当接させた状態で金属板１ｂを屋内側に配して鋼製柱２の屋内側面上に鋼製柱２に至るタッピンビス１ｃで固定すると共に、有機芯材がイソシアヌレート樹脂発泡体より成るものであって上縁部及び下縁部にそれぞれ嵌合部を有した金属サンドイッチパネルから成り厚さが２５ｍｍである前記実施例１と全く同様の外壁用有機芯材入り金属パネル材３を鋼製柱２の屋外側面上に鋼製柱２に至るタッピンビス３ａで固定した。この際、金属板付石膏ボード１，１同士の水平当接部位１ｄと外壁用有機芯材入り金属パネル材３，３同士の水平当接部位３ｂとは垂直方向で同一高さにあり、且つ金属板付石膏ボード１，１同士の垂直当接部位１ｅと外壁用有機芯材入り金属パネル材３，３同士の垂直当接部位３ｃとが鋼製柱２の投影面上に位置するように金属板付石膏ボード１と有機芯材入り金属パネル材３とを固定した。
【００６２】
実施例５として、実施例４の金属サンドイッチパネルと同じ構成で厚さが３５ｍｍである外壁用有機芯材入り金属パネル材３を使用したこと以外は、実施例４と同様のものとした。
【００６３】
一方比較例３として、金属板が存在していない前記実施例１と同じ石膏ボード１ａを使用した以外は実施例４と同様ものとした。
【００６４】
このような実施例４〜５，比較例３の外壁構造に対して、前記防火耐火性能試験と同様に有機芯材入り金属パネル材３の屋外側から前記図１８に示すような温度曲線で加熱して、加熱側の反対側となる石膏ボードの屋内側の面（実施例４〜５では金属板の屋内側の面、比較例３では石膏ボードの屋内側の面）の温度を測定する防火耐火性能試験を行った。この防火耐火性能試験の結果を、加熱側の反対側となる石膏ボードの屋内側の面の最大温度の経時変化を図２０に示す。
【００６５】
この図２０から判るように、金属板が接着されていない石膏ボード１ａである比較例３は、加熱開始後３５分で急激な温度上昇が認められ、石膏ボードの一部には亀裂が生じた部位が認められ、更に石膏ボード自体が崩れ落ちた部位も認められた。
【００６６】
これに対し、石膏ボード１ａの片面に厚さ０．２７ｍｍの鋼板から成る金属板１ｂが接着されている金属板付石膏ボード１の実施例４は、加熱開始５０分後に急激な温度上昇が認められたが、金属板が接着されていない石膏ボードである比較例３のように、３５分での急激な温度上昇は認められなかった。これは、前記実施例１〜３，比較例１〜２に対する防火耐火性能試験と同様に金属板付石膏ボード１である実施例３の厚さ０．２７ｍｍという板厚の厚い鋼板１ｂにより石膏ボード１ａの崩れ落ちが防止されると共に穴あきが防止されたことに起因していると考えられる。
【００６７】
更に、厚さが３５ｍｍである外壁用有機芯材入り金属パネル材３を使用した実施例５に至っては加熱開始後６０分を経ても急激な温度上昇が認められなかった。これは外壁用有機芯材入り金属パネル材３の厚さが前記実施例３と比較して１０ｍｍ厚かったことに起因すると考えられる。
【００６８】
以上の試験結果からも判るように、本発明に係る防火耐火性能に優れた外壁構造は従来の外壁構造と比較して熱に対して優れた防火耐火効果を奏していることが確認できた。
【００６９】
【発明の効果】
以上に詳述した如く、本発明に係る防火耐火性能に優れた外壁構造は、石膏ボードが少なくともその片面に鋼板，アルミ板又は銅板から成り板厚が０．２７〜０．６ｍｍである金属板が接着されている金属板付石膏ボードであってこの金属板付石膏ボードがその金属板を屋内側に配して鋼製柱及び／又は鋼製横胴縁にタッピンビスで固定されているので、金属板付石膏ボードが加熱された際に石膏ボードに亀裂が生じたり、石膏ボードがその亀裂によって崩れ落ちたりすることを最小限に抑えることができ、そしてこの金属板付石膏ボードをその四周を当接させた状態で固定すると共に外壁用有機芯材入り金属パネル材がその隣接部分を当接された状態で金属板付石膏ボードの屋外側に固定する構造であるので、意匠性を損なうことがないと共に熱が屋外側から屋内側に急速に入り込んで屋内側の延焼が生じる現象を最小限に抑えることができるのである。
【００７０】
そして、金属板付石膏ボードを鋼製柱の屋外側に固定する場合には、外壁用有機芯材入り金属パネル材を、
鋼製柱の屋外側面上にその鋼製柱に至るタッピンビスで固定された金属板付石膏ボードの屋外側面上に鋼製柱に至るタッピンビスで、又はその金属板付石膏ボードの屋外側面上にその鋼製柱に至るタッピンビスで固定された取付け役物を介して固定したり、
鋼製柱の屋外側面上にその鋼製柱に直交して固定されている鋼製横胴縁の屋外側面上にその鋼製横胴縁に至るタッピンビスで固定された金属板付石膏ボードの屋外側面上にその鋼製横胴縁に至るタッピンビスで、又はその金属板付石膏ボードの屋外側面上にその鋼製横胴縁に至るタッピンビスで固定された取付け役物を介して固定したり、
隣合う鋼製柱の互いに対向する面に両端が固定されているその鋼製柱と直交する鋼製横胴縁の屋外側面上及び／又はその鋼製柱の屋外側面上にその鋼製横胴縁及び／又はその鋼製柱に至るタッピンビスで固定された金属板付石膏ボードの屋外側面上にその鋼製横胴縁及び／又はその鋼製柱に至るタッピンビスで、又はその金属板付石膏ボードの屋外側面上にその鋼製横胴縁及び／又はその鋼製柱に至るタッピンビスで固定された取付け役物を介して固定したりすれば、
施工性を損なうことなく、様々な施工方法や様々な構造や種類の金属パネル材に対応できると共に防火耐火性能に優れた外壁構造を得ることができて好ましいのである。
【００７１】
また金属板付石膏ボードを鋼製柱の屋内側に固定する場合には、
金属板付石膏ボードを鋼製柱の屋内側面上にその鋼製柱に至るタッピンビスで固定すると共に外壁用有機芯材入り金属パネル材を、その鋼製柱の屋外側面上にその鋼製柱に至るタッピンビスで、又はその鋼製柱の屋外側面上にその鋼製柱に至るタッピンビスで直接固定された取付け役物を介して固定したり、
金属板付石膏ボードを鋼製柱の屋内側面上にその鋼製柱に至るタッピンビスで固定すると共に外壁用有機芯材入り金属パネル材を、その鋼製柱の屋外側面上にその鋼製柱に直交して固定されている鋼製横胴縁の屋外側面上にその鋼製横胴縁に至るタッピンビスで、又はその鋼製柱の屋外側面上にその鋼製柱に直交して固定されているその鋼製横胴縁の屋外側面上にその鋼製横胴縁に至るタッピンビスで直接固定された取付け役物を介して固定したり、
金属板付石膏ボードを隣合う鋼製柱の互いに対向する面に両端が固定されているその鋼製柱と直交する鋼製横胴縁の屋内側面上及び／又はその鋼製柱の屋内側面上にその鋼製横胴縁及び／又はその鋼製柱に至るタッピンビスで固定すると共に外壁用有機芯材入り金属パネル材を、その鋼製横胴縁及び／又はその鋼製柱の屋外側面上にその鋼製横胴縁及び／又はその鋼製柱に至るタッピンビスで、又はその鋼製横胴縁及び／又はその鋼製柱の屋外側面上にその鋼製横胴縁及び／又はその鋼製柱に至るタッピンビスで直接固定された取付け役物を介して固定したりすれば、
施工性を損なうことなく、様々な施工方法や様々な構造や種類の金属パネル材に対応できると共に防火耐火性能に優れた外壁構造を得ることができて好ましいのである。
【００７２】
また、上記した各種外壁構造において、鋼製柱の屋外側面上に鋼製柱に直交して鋼製横胴縁が固定されている態様や隣合う鋼製柱の互いに対向する面にその鋼製柱と直交して鋼製横胴縁の両端が固定されている態様の場合には、有機芯材入り金属パネル材を縦張りする場合でも横張りする場合でもその施工が容易である。
【００７３】
更に、金属板付石膏ボード同士の水平当接部位と外壁用有機芯材入り金属パネル材同士の水平当接部位とが少なくとも垂直方向に１０ｃｍ以上離れており且つ金属板付石膏ボード同士の垂直当接部位と外壁用有機芯材入り金属パネル材同士の垂直当接部位とが鋼製柱の投影面上に位置していたり、金属板付石膏ボード同士の水平当接部位と外壁用有機芯材入り金属パネル材同士の水平当接部位とが鋼製横胴縁の投影面上に位置しており且つ金属板付石膏ボード同士の垂直当接部位と外壁用有機芯材入り金属パネル材同士の垂直当接部位とが少なくとも水平方向に１０ｃｍ以上離れていたり、金属板付石膏ボード同士の垂直当接部位が鋼製柱の投影面上に位置しており且つ外壁用有機芯材入り金属パネル材同士の水平当接部位が鋼製横胴縁の投影面上に位置していたり、更にこの場合に外壁用有機芯材入り金属パネル材同士の垂直当接部位が鋼製柱の投影面上に位置しており且つ金属板付石膏ボード同士の水平当接部位が鋼製横胴縁の投影面上に位置していたりすれば、金属板付石膏ボード同士の水平当接部位と外壁用有機芯材入り金属パネル材同士の水平当接部位、及び金属板付石膏ボード同士の垂直当接部位と外壁用有機芯材入り金属パネル材同士の垂直当接部位が、それぞれ鋼製柱や鋼製横胴縁の投影面上に位置している場合にはその固定が強固になり、金属板付石膏ボード同士の水平当接部位と外壁用有機芯材入り金属パネル材同士の水平当接部位、及び金属板付石膏ボード同士の垂直当接部位と外壁用有機芯材入り金属パネル材同士の垂直当接部位が水平方向若しくは垂直方向に１０ｃｍ以上離れている場合には、防火耐火性能が比較的弱い部位であるそれぞれの当接部位が直接重なることがないので、防火耐火性能が増して好ましいのである。
【００７４】
更に、外壁用有機芯材入り金属パネル材の有機芯材がイソシアヌレート樹脂発泡体，フェノール樹脂発泡体又はウレタンフェノール樹脂発泡体より成るものであれば、加熱された際に有機芯材が融解することなく有機芯材自体が炭化することにより有機芯材が所定位置より脱落し難いので、熱輻射等により防火耐火性能が急激に低下することがないので好ましく、また外壁用有機芯材入り金属パネル材の有機芯材に無機繊維ネットが１〜３枚挿入されていれば、有機芯材が加熱された際に融解したり、炭化して亀裂が生じたりすることによって所定位置から脱落するのを最小限に防止することができるので好ましいのである。
【００７５】
更に、外壁用有機芯材入り金属パネル材の厚さが２５ｍｍ〜５０ｍｍであれば、外壁用有機芯材入り金属パネル材の防火耐火性能と経済性施工性とが両立して好ましく、また金属板付石膏ボードが、石膏ボードの少なくとも片面に金属板が１００℃以上の耐熱性を有する接着剤で接着されている金属板付石膏ボードであれば、金属板付石膏ボードの防火耐火性能が向上して好ましいのである。
【００７６】
このような種々の効果を奏する本発明に係る防火耐火性能に優れた外壁構造の建築分野に貢献する価値は非常に大きなものである。
【図面の簡単な説明】
【図１】本発明に係る防火耐火性能に優れた外壁構造に使用する金属板付石膏ボードの構造例を示す断面説明図である。
【図２】本発明に係る防火耐火性能に優れた外壁構造において金属板付石膏ボードを鋼製柱の屋外側に固定した状態例を示す側断面説明図である。
【図３】本発明に係る防火耐火性能に優れた外壁構造の１実施例における施工状態を示す斜視説明図である。
【図４】図３の防火耐火性能に優れた外壁構造を示す側断面説明図である。
【図５】取付け役物を使用した本発明に係る防火耐火性能に優れた外壁構造の他の実施例における施工状態を示す斜視説明図である。
【図６】図５の防火耐火性能に優れた外壁構造を示す側断面説明図である。
【図７】本発明に係る防火耐火性能に優れた外壁構造の更に他の実施例における施工状態を示す斜視説明図である。
【図８】図７の防火耐火性能に優れた外壁構造を示す側断面説明図である。
【図９】取付け役物を使用した本発明に係る防火耐火性能に優れた外壁構造の更に他の実施例における施工状態を示す斜視説明図である。
【図１０】図９の防火耐火性能に優れた外壁構造を示す側断面説明図である。
【図１１】本発明に係る防火耐火性能に優れた外壁構造の更に他の実施例における施工状態を示す斜視説明図である。
【図１２】本発明に係る防火耐火性能に優れた外壁構造の更に他の実施例における施工状態を示す斜視説明図である。
【図１３】本発明に係る防火耐火性能に優れた外壁構造の更に他の実施例における施工状態を示す斜視説明図である。
【図１４】図１３の防火耐火性能に優れた外壁構造を示す側断面説明図である。
【図１５】本発明に係る防火耐火性能に優れた外壁構造の更に他の実施例における施工状態を示す斜視説明図である。
【図１６】本発明に係る防火耐火性能に優れた外壁構造の更に他の実施例における施工状態を示す斜視説明図である。
【図１７】本発明に係る防火耐火性能に優れた外壁構造に使用する有機芯材に無機繊維ネットが挿入されている外壁用有機芯材入り金属パネル材の構造の１例を示す断面説明図である。
【図１８】実施例及び比較例の外壁構造に対して有機芯材入り金属パネル材の屋外側から加熱した温度曲線を示す図である。
【図１９】実施例１〜２，比較例１〜２の外壁構造における石膏ボードの屋内側面の温度変化を示す図である。
【図２０】実施例３〜４及び比較例３の外壁構造における石膏ボードの屋内側面の温度変化を示す図である。
【符号の説明】
１　金属板付石膏ボード
１ａ　石膏ボード
１ｂ　金属板
１ｃ　タッピンビス
１ｄ　水平当接部位
１ｅ　垂直当接部位
１ｆ　耐熱性を有するテープ
１ｇ　耐熱性を有するコーキング材
２　鋼製柱
２ａ　鋼製横胴縁
３　外壁用有機芯材入り金属パネル材
３ａ　タッピンビス
３ｂ　水平当接部位
３ｃ　垂直当接部位
３ｄ　無機繊維ネット
４　取付け役物
４ａ　タッピンビス[0001]
[Industrial applications]
The present invention relates to an outer wall structure using a metal panel material containing an organic core material for an outer wall and a gypsum board with a metal plate to which a metal plate is adhered, and a metal containing an organic core material for an outer wall as a conventional outer wall material. Compared to the case where only panel material is used, or the outer wall structure which is remarkably superior in fire protection and fire resistance compared to the case where a gypsum board is used on the indoor side with a metal panel material containing an organic core material for the outer wall as the outer wall material Things.
[0002]
[Prior art]
2. Description of the Related Art As an outer wall structure of a building, an outer wall structure having fire resistance and fire resistance is required. As a method of providing the fire-resistant fire-resistant performance, a fire-resistant fire-resistant outer wall structure in which the outer wall material itself has the fire-resistant fire-resistant performance, or a board having the fire-resistant fire-resistant performance on the outdoor side of the pillar, and the outer wall material is stretched thereon. There is a fire-resistant fire-resistant outer wall structure, a fire-resistant fire-resistant outer wall structure in which a board having fire-resistant property is provided on the indoor side of the pillar, and an outer wall material is provided on the outdoor side of the pillar.
[0003]
As a board having fireproof fireproof performance used for such a fireproof fireproof outer wall structure, generally, a gypsum board having a core material obtained by kneading and drying various additives and water to calcined gypsum is used. When this gypsum board is exposed to high temperatures in the event of a fire, the gypsum contained in the gypsum board core material (CaSO 4 ・ 2H 2 O) is thermally decomposed and the gypsum water of crystallization (3 / 2H 2 O) is evaporated and calcined gypsum (CaSO 4 ・ 1 / 2H 2 O) causes a chemical change, and the water of crystallization is gradually released as water vapor, thereby delaying the rise in temperature of the gypsum board itself and reducing heat conduction.
[0004]
As a method of providing fire resistance and fire resistance using such a gypsum board, a gypsum board is stretched on a pillar and a stud, or on a rim, and the rim is fixed on the gypsum board, and further on the fixed rim. There has been a method in which an outer wall material made of metal or ceramic siding board is attached to the gypsum board to improve the fire and fire resistance of the gypsum board as the outer wall structure (for example, see Patent Document 1). There has also been a method in which a thin metal plate having a thickness of 30 to 100 μm is attached to both sides or one side of a gypsum board to improve the fire and fire resistance of the gypsum board (for example, see Patent Document 2).
[0005]
However, a gypsum board is stretched on pillars and studs, or a hull, and a hull is fixed on the gypsum board, and an outer wall material made of metal or ceramic siding board is stretched on the fixed hull. In the method, when the outdoor side of the outer wall is heated assuming an actual fire, the outer wall material is first heated and the temperature of the outer wall material itself rises, and then the rim → plaster board → pillars and studs, or the rim It is configured to be heated, and the gypsum board is heated by radiant heat from the outer wall material side, but as described above, the crystal water of gypsum contained in the gypsum board is gradually released as water vapor, For the time being, it was expected that the temperature of the gypsum board itself would be suppressed to 100 ° C or less. However, in this method, the outer wall material side of the gypsum board had a rim made of inflammable wood, so the stone The effect of suppressing the temperature of the board itself to 100 ° C or less is small. As a result, the gypsum contained in the gypsum board rapidly undergoes a chemical change to almost calcined gypsum due to rapid evaporation of crystallization water, and the temperature of the gypsum board is 100 ° C. As described above, and since the volume of the gypsum board shrinks with the evaporation of the crystal water of the gypsum and the gypsum board itself becomes brittle, cracks are generated in the gypsum board, or the gypsum board is broken down by the cracks. there were. Then, when the gypsum board cracks like this or the gypsum board itself collapses, heat quickly enters from the outdoor side to the indoor side from the gap or the collapsed part of the crack, and the fire spreads indoors There was also the disadvantage of becoming.
[0006]
Further, the method of sticking a thin metal plate having a thickness of 30 to 100 μm on both sides or one side of a gypsum board has a drawback that the gypsum board itself with the thin metal plate has no design property and cannot be used as an outer wall material. When the gypsum board to which the metal sheet is attached and the outer wall material are used in combination, the water of crystallization of the gypsum contained in the gypsum board is gradually released as water vapor, so that the gypsum board itself for a while Can be expected to suppress the temperature of the gypsum to 100 ° C. or less, but eventually the volume of the gypsum board shrinks due to the evaporation of the crystallization water of the gypsum, and the gypsum board itself becomes brittle to cause a crack. However, this gypsum board can be slightly prevented from falling down due to cracks in the gypsum board by a metal sheet with a thickness of 30 to 100 µm, but the thin metal sheet has a low strength and cannot sufficiently support the collapse. However, there is also a drawback that when the steel sheet advances or further collapses, a hole is opened in the metal sheet and heat enters from the hole.
[0007]
[Patent Document 1]
Japanese Patent Publication No. 7-15207
[Patent Document 2]
JP 2001-62954 A
[0008]
[Problems to be solved by the invention]
The present invention solves the above-mentioned drawbacks of the prior art, and has an outer wall structure using a metal panel material containing an organic core material for an outer wall and a gypsum board with a metal plate to which a metal plate is adhered. An object is to provide an excellent outer wall structure.
[0009]
[Means for Solving the Problems]
The inventors of the present invention have conducted intensive studies to solve the above-described problems, and as a result, the gypsum board has a metal plate made of a steel plate, an aluminum plate or a copper plate and having a plate thickness of 0.27 to 0.6 mm adhered to at least one surface thereof. If it is a gypsum board with a metal plate and the gypsum board with the metal plate is fixed to a steel column and / or a steel lateral trunk with tapping screws by disposing the metal plate on the indoor side, the gypsum board with a metal plate is heated. When the gypsum board is cracked or the gypsum board collapses due to the crack, it can be minimized, and the gypsum board with the metal plate is fixed with its four circumferences in contact with the outer wall. An external wall structure that fixes the metal panel material containing the organic core material to the outdoor side of the gypsum board with metal plate in a state where the adjacent portion is in contact with the metal panel material does not impair the design property and heat is applied to the outdoor side. By investigation that it is possible to obtain an excellent external wall structure fire fire resistance that can minimize a phenomenon of fire indoor side occurs enters rapidly indoors side is of the present invention has been completed.
[0010]
And when the gypsum board with a metal plate is arranged on the indoor side and the metal plate is fixed on the outdoor side of the steel column, a metal panel material with an organic core material for an outer wall is used.
On the outdoor side of a steel pillar, on the outdoor side of a gypsum board with a metal plate fixed with tapping screws to the steel column, on the outdoor side, or on the outdoor side of the gypsum board with a metal plate. It can be fixed via a mounting accessory fixed with tapping screws to the pillar,
Outdoor side of gypsum board with metal plate fixed with tapping screws to the horizontal side of the steel on the outdoor side of the horizontal side of the steel that is fixed on the outdoor side of the steel column perpendicular to the steel column Fixed on the outside side of the gypsum board with a metal plate on the outside side of the gypsum board with a steel pin through the mounting member fixed with the tapping screw to the steel side girth,
The steel horizontal body on the outdoor side surface of the steel horizontal body edge perpendicular to the steel column and / or on the outdoor side surface of the steel type pillar, both ends of which are fixed to opposing surfaces of the adjacent steel column. On the outside side of the gypsum board with metal plate fixed with rims and / or tapping screws to the steel columns, with the steel lateral trunk edge and / or with the tapping screws to the steel columns, or on the outside of the gypsum board with metal plates If fixed on the side via a mounting member fixed by tapping screws to the steel lateral fuselage and / or the steel column,
They also found that it was possible to obtain various types of metal panel materials and various construction methods and types of metal panel materials without deteriorating the workability, and it was possible to obtain an outer wall structure excellent in fire resistance and fire resistance.
[0011]
When fixing a gypsum board with a metal plate to the indoor side of a steel column,
The gypsum board with a metal plate is arranged on the indoor side with the metal plate fixed on the indoor side surface of the steel column with tapping screws leading to the steel column, and the metal panel material containing the organic core material for the outer wall is made of the steel column. On the outdoor side of the steel column with a tapping screw that reaches the steel column, or on the outdoor side of the steel column with a fixing member directly fixed with the tapping screw that reaches the steel column,
The gypsum board with a metal plate is arranged on the indoor side with the metal plate fixed on the indoor side surface of the steel column with tapping screws leading to the steel column, and the metal panel material containing the organic core material for the outer wall is made of the steel column. With a tapping screw on the outdoor side of the steel lateral fuselage, which is fixed perpendicular to the steel column on the outdoor side of the steel lateral fuselage, or on the outdoor side of the steel column On the outdoor side surface of the steel horizontal fuselage, which is fixed orthogonal to the pillar, fixed via a mounting member directly fixed with tapping screws reaching the steel horizontal fuselage, or a gypsum board with a metal plate The metal plate is arranged on the indoor side, and both ends are fixed to opposing surfaces of adjacent steel columns. On the indoor side surface and / or the steel columns of the steel horizontal trunk edge orthogonal to the steel columns. On the indoor side of the building with tapping screws to its steel lateral rim and / or its steel columns Together with the metal panel material with the organic core material for the outer wall, on the outdoor side of the steel lateral fuselage and / or the steel column with tapping screws reaching the steel lateral fuselage and / or the steel column, or If it is fixed on the steel lateral rim and / or on the exterior side of the steel column via a mounting that is fixed directly with tapping screws to the steel lateral rim and / or the steel column. ,
They also found that it was possible to obtain various types of metal panel materials and various construction methods and types of metal panel materials without deteriorating the workability, and it was possible to obtain an outer wall structure excellent in fire resistance and fire resistance.
[0012]
Further, in the above various outer wall structures, the steel lateral trunk edge is fixed on the outdoor side surface of the steel column orthogonally to the steel column or the steel column is formed on the opposing surfaces of the adjacent steel columns. In the case of a mode in which both ends of the steel horizontal fuselage are fixed at right angles to the column, the construction can be easy even when the metal panel material containing the organic core material is stretched vertically or horizontally. It was determined.
[0013]
Furthermore, the vertical contact part between the gypsum boards with a metal plate is located on the projection surface of the steel column, or the horizontal contact part between the gypsum boards with the metal plate is located on the projection surface of the steel horizontal trunk. The vertical abutment between the metal panels containing the organic core material for the outer wall is located on the projected surface of the steel column, and the horizontal abutment between the metal panel materials containing the organic core for the outer wall is steel. It is preferable that it is positioned on the projection surface of the horizontal body edge because the gypsum board with a metal plate and the metal panel material containing the organic core material for the outer wall can be firmly fixed. In addition, the vertical contact portion between the gypsum boards with the metal plate and the vertical contact portion of the metal panel material with the organic core material for the outer wall are separated by at least 10 cm or more in the horizontal direction, or the horizontal contact portion between the gypsum boards with the metal plate When the horizontal abutting portion of the metal panel material containing the organic core material for the outer wall is separated from the horizontal abutting portion by at least 10 cm or more in the vertical direction, the abutting portions, which are portions having relatively low fire resistance and fire resistance, do not directly overlap. Therefore, it is preferred that the fire and fire resistance performance is increased.
[0014]
An embodiment in which such a gypsum board with a metal plate or a metal panel material with an organic core material for an outer wall can be firmly fixed, or a portion where the gypsum board with a metal plate or a metal panel material with an organic core material for an outer wall has relatively weak fireproofing performance. As a combination with the aspect in which the respective contact portions are not directly overlapped, the horizontal contact portion between the gypsum boards with metal plates and the horizontal contact portion between the metal panel materials containing the organic core material for the outer wall are at least vertical. 10cm or more in the direction, and the vertical abutment between the gypsum boards with metal plates and the vertical abutment between the metal panel materials containing the organic core material for the outer wall are located on the projected surface of the steel column A gypsum board with a metal plate, wherein a horizontal abutment portion between gypsum boards with a metal plate and a horizontal abutment portion between metal panel materials containing an organic core material for an outer wall are positioned on a projection surface of a steel horizontal trunk. Vertical abutting part of each other and outside The vertical abutting part between the metal panel materials containing the organic core material is separated by at least 10 cm or more in the horizontal direction, or the vertical abutting part between the gypsum boards with metal plates is located on the projection surface of the steel column. In addition, the horizontal abutting portion between the outer-wall organic core-containing metal panel materials is located on the projection surface of the steel lateral trunk edge, and in this case, the outer-wall organic core-containing metal panel-containing metal panel materials also have different positions. There is a mode in which the vertical contact portion is located on the projection surface of the steel column, and the horizontal contact portion between the gypsum boards with metal plates is located on the projection surface of the steel horizontal trunk.
[0015]
Further, if the organic core material of the metal panel material containing the organic core material for the outer wall is made of an isocyanurate resin foam, a phenol resin foam or a urethane phenol resin foam, the organic core material is heated when heated. It is preferable that the organic core material itself is not carbonized without melting, so that the organic core material is hard to fall off from a predetermined position. If 1 to 3 inorganic fiber nets are inserted into the organic core material of the metal panel material containing the core material, the organic core material may be melted when heated or carbonized to cause cracks. It has also been found that it is preferable because it can be prevented from falling off from a predetermined position to a minimum.
[0016]
Furthermore, if the thickness of the metal panel material containing the organic core material for the outer wall is 25 mm to 50 mm, both the fire resistance and the economical workability of the metal panel material containing the organic core material for the outer wall are preferable, and If the gypsum board with a metal plate is a gypsum board with a metal plate in which the metal plate is bonded to at least one surface of the gypsum board with an adhesive having heat resistance of 100 ° C. or more, the fire resistance and fire resistance of the gypsum board with a metal plate are improved. We have also found good things.
[0017]
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The outer wall structure according to the present invention having excellent fire protection performance will be described in detail below with reference to the drawings.
FIG. 1 is a cross-sectional explanatory view showing a structural example of a gypsum board with a metal plate used for an outer wall structure having excellent fire and fire resistance according to the present invention. FIG. 2 is a gypsum with a metal plate in an outer wall structure having excellent fire and fire resistance according to the present invention. FIG. 3 is an explanatory side sectional view showing an example of a state in which a board is fixed to an outdoor side of a steel column. FIG. 3 is a perspective explanatory view showing a construction state in an embodiment of an outer wall structure having excellent fire protection and fire resistance according to the present invention. Is an explanatory side sectional view showing an outer wall structure having excellent fire and fire resistance of FIG. 3, and FIG. 5 shows a construction state in another embodiment of an outer wall structure having excellent fire and fire resistance according to the present invention using a mounting accessory. FIG. 6 is a side sectional view showing an outer wall structure having excellent fire and fire resistance performance of FIG. 5, and FIG. 7 is a construction state in still another embodiment of an outer wall structure having excellent fire and fire resistance performance according to the present invention. FIG. 8 is a perspective explanatory view showing the fire prevention and fire resistance performance of FIG. FIG. 9 is a side cross-sectional explanatory view showing an excellent outer wall structure, FIG. 9 is a perspective explanatory view showing a construction state in still another embodiment of an outer wall structure excellent in fire protection and fire resistance according to the present invention using a mounting accessory, and FIG. FIG. 11 is an explanatory side sectional view showing an outer wall structure having excellent fire and fire resistance performance in FIG. 9, and FIG. 11 is a perspective explanatory view showing a construction state in still another embodiment of the outer wall structure having excellent fire and fire resistance performance according to the present invention. Is a perspective explanatory view showing a construction state in still another embodiment of the outer wall structure having excellent fire and fire resistance according to the present invention, and FIG. 13 is a perspective view showing still another embodiment of the outer wall structure having excellent fire and fire resistance according to the present invention. FIG. 14 is a perspective explanatory view showing a construction state, FIG. 14 is a side sectional view showing an outer wall structure having excellent fire and fire resistance performance of FIG. 13, and FIG. 15 is still another embodiment of an outer wall structure having excellent fire and fire resistance performance according to the present invention. Description showing construction status FIG. 16 is a perspective explanatory view showing a construction state of still another embodiment of an outer wall structure having excellent fire protection performance according to the present invention. FIG. 17 is a perspective view showing an outer wall structure having excellent fire protection performance according to the present invention. FIG. 18 is a cross-sectional explanatory view showing an example of the structure of a metal panel material containing an organic core material for an outer wall in which an inorganic fiber net is inserted into a machine core material. FIG. FIG. 19 is a diagram showing a temperature curve of a metal panel material with a material heated from the outdoor side, FIG. 19 is a diagram showing a temperature change of an indoor side surface of a gypsum board in the outer wall structures of Examples 1 to 3 and Comparative Examples 1 and 2, and FIG. It is a figure which shows the temperature change of the indoor side surface of the gypsum board in the outer wall structure of Examples 4-5 and the comparative example 3.
[0018]
In the drawing, reference numeral 1 denotes a metal plate 1b made of a steel plate, an aluminum plate or a copper plate and having a thickness of 0.27 to 0.6 mm adhered to at least one surface of a gypsum board 1a with an adhesive, and four sides thereof are brought into contact with each other. Is a gypsum board with a metal plate, which is fixed with a tapping screw 1c reaching a steel pillar 2 and / or a steel lateral waist edge 2a to be described later by disposing the metal plate 1b on the indoor side in this state. The gypsum of the main raw material is defined as a core, and both sides and the sides in the length direction (flow direction at the time of formation) are covered with gypsum board base paper specified in JIS A6901 “Gypsum board product” on the market. Is preferably used, but may not be coated with the gypsum board base paper. In each of the illustrated embodiments, the gypsum board base paper is omitted.
[0019]
The metal plate 1b adhered to at least one surface of the gypsum board 1a does not collapse when the gypsum board 1a is shrunk when the gypsum board 1 with the metal plate is heated, so that the gypsum board 1a is not broken down by the crack. Supports the gypsum board 1a to minimize the collapse of the gypsum board 1a. The metal plate 1b may be made of a steel plate, an aluminum plate, or a copper plate. In addition, the thickness of the gypsum board must be 0.27 mm or more from the viewpoint of fire and fire resistance, and 0.6 mm or less from the viewpoint of reducing the overall weight of the gypsum board 1 with a metal plate. is necessary.
[0020]
As the adhesive for bonding the metal plate 1b to at least one surface of the gypsum board 1a, any adhesive may be used as long as it has a property capable of bonding the metal plate 1b and the gypsum board 1a. If the adhesive has a heat resistance of 100 ° C. or higher, the fire resistance of the gypsum board with metal plate 1 is improved, which is preferable. As the adhesive having a heat resistance of 100 ° C. or more, an adhesive having a heat resistance such as an alkali silicate aqueous solution adhesive, a polybenzimidazole resin adhesive, and a polyimide resin adhesive is preferably used.
[0021]
When the metal plate 1b is bonded to at least one surface of the gypsum board 1a with such an adhesive to form the gypsum board 1 with a metal plate, only one side of the gypsum board 1 is covered as shown in FIG. The gypsum board 1 with a metal plate may be formed by bonding a flat metal plate 1b, but as shown in FIGS. 1 (b) and 1 (c), a part or the whole of the four peripheral edges of the gypsum board 1a If the gypsum board 1 with a metal plate is formed by bonding the metal plate 1b having its four peripheral ends bent so that the gypsum board is covered, the fire resistance and fire resistance of the entire gypsum board 1 with a metal plate and the strength are preferably increased.
[0022]
Reference numeral 2 denotes a gypsum board with a metal plate 1, a metal panel material 3 containing an organic core material for an outer wall, which will be described later, a mounting member 4, and a steel pillar 2a to which a steel lateral waist 2a is fixed. Mold steel, C steel, etc. are used. It is preferable that the steel column 2 is erected in accordance with the width of the gypsum board 1 with a metal plate, which usually has a heavy weight per unit area among the members to be fixed.
[0023]
Reference numeral 3 denotes a metal panel material containing an organic core material for an outer wall, the adjacent portion of which is fixed in a state of being abutted. In cooperation with the gypsum board 1 with the metal plate fixed inside, it plays a role of minimizing the phenomenon that heat rapidly enters the indoor side from the outdoor side and the fire spreads on the indoor side.
[0024]
As the metal panel material 3 containing an organic core material for an outer wall, a metal siding or a metal sandwich panel using a foamed organic resin as a core material is used. The shape of the four peripheral edges may be a flat edge portion having no fitting portion, but the metal panel material 3 with the organic core material vertically and / or horizontally adjacent to the four peripheral edges may be used. It is preferable to form a fitting portion for engaging with the mounting member 4 or to be formed so as to be able to engage with a mounting accessory 4 described later, since the workability is improved.
[0025]
The organic core material of the metal panel material 3 with the organic core material for an outer wall may be made of a resin foam which is melted when heated, such as a urethane resin foam or a polystyrene resin foam. As long as it is made of an isocyanurate resin foam, a phenol resin foam or a urethane phenol resin foam, the organic core material itself is carbonized without melting when heated. Is difficult to fall off from a predetermined position, so that the fireproof and fireproof performance does not suddenly decrease due to heat radiation or the like, which is preferable. In addition, if one to three inorganic fiber nets 3d are inserted into the organic core material of the metal panel material 3 with the organic core material for an outer wall as shown in FIG. Can be prevented from falling off from a predetermined position due to melting or carbonization and cracking, thereby further improving the fire resistance and fire resistance of the metal panel material 3 containing the organic core material for the outer wall. Is preferred.
[0026]
If the thickness of the metal panel material 3 containing the organic core material for the outer wall is less than 25 mm, when the material is melted by heating or cracked due to carbonization, the cracks and the like reach the opposite surface at an early stage to prevent fire. When the thickness is more than 50 mm, the production cost is increased, the weight is increased, and the economy and workability are deteriorated. Therefore, the thickness of the metal panel material 3 containing the organic core material for the outer wall is 25 mm to 50 mm. It is preferable that
[0027]
Numeral 4 denotes a steel column 2 and / or a steel lateral fuselage 2a on the outdoor lateral surface of the gypsum board 1 with a metal plate fixed on the outdoor lateral surface of the steel column 2 and / or the outdoor lateral surface of the steel horizontal fuselage 2a. Or when the gypsum board 1 with a metal plate is fixed on the indoor side surface of the steel column 2 and / or on the indoor side surface of the steel horizontal waist edge 2a, the steel column 2 and / or An organic core material for an outer wall to be fixed, which is directly fixed on the outdoor side surface of the steel horizontal fuselage edge 2a by the steel column 2 and / or the tapping screw 4a reaching the steel horizontal fuselage edge 2a. It is used when the encased metal panel material 3 is formed so as to be able to engage with the mounting accessory 4.
[0028]
As a mode of fixing the metal panel material 3 containing an organic core material for an outer wall using such constituent members, a gypsum board 1 with a metal plate disposes the metal plate 1 b on the indoor side to form a steel column 2. When the gypsum board is fixed on the outdoor side of the gypsum board, the organic core material for the outer wall is placed on the outdoor side surface of the gypsum board 1 with the metal plate fixed on the outdoor side surface of the steel column 2 with the tapping screw 1c reaching the steel column 2. The metal panel material 3 is filled with the steel pillar 2 by tapping screws 3a reaching the steel pillar 2 as shown in FIGS. 3 and 4, or on the outdoor side surface of the gypsum board 1 with the metal plate as shown in FIGS. (Hereinafter referred to as “first mode”, which is a mode corresponding to claim 1).
This first embodiment is preferable when the metal panel material 3 containing the organic core material for the outer wall is fixed with its longitudinal direction being horizontal. In addition, the metal panel material 3 with the organic core for the outer wall used in the case of the first embodiment is generally such that the metal panel material 3 with the organic core for the outer wall is more unitary than the gypsum board 1 with the metal plate. It is preferable that the length in the longitudinal direction is formed to be an integral multiple of the interval between the standing columns 2 because it is economical without impairing the workability.
[0029]
In addition, on the outdoor side surface of the steel lateral waist edge 2a fixed orthogonally to the steel column 2 on the outdoor lateral surface of the steel pillar 2, a tapping screw 1c reaching the steel horizontal waist edge 2a is fixed. On the outdoor side surface of the gypsum board 1 with a metal plate, a metal panel material 3 containing an organic core material for an outer wall is attached with a tapping screw 3a reaching the steel lateral trunk edge 2a as shown in FIGS. 7, 8 and 11, or FIG. As shown in FIG. 10, a mode (hereinafter referred to as a "second mode") is fixed on an outdoor side surface of the gypsum board 1 with a metal plate via a mounting member 4 fixed with a tapping screw 4a reaching the steel lateral trunk edge 2a. This is an aspect corresponding to claim 2).
This second embodiment is preferable when the metal panel material 3 containing the organic core material for an outer wall is fixed with its longitudinal direction being vertical. In this case, in the first embodiment, it is possible to fix the metal panel material 3 containing the organic core material for the outer wall with the longitudinal direction thereof being vertical, but in this case, the interval in which the steel columns 2 are erected. If the length of the metal panel material 3 with the organic core material for the outer wall is not set to the length in the width direction, the metal panel material 3 with the organic core material for the outer wall cannot be fixed with the tapping screw 3a or the like reaching the steel column 2. The shorter the length in the width direction of the metal panel material 3 containing the organic core material for the outer wall to be fixed is, the more the number of the steel columns 2 must be increased, which is uneconomical. In the case of (1), the metal panel material 3 containing the organic core material for the outer wall is placed on the outdoor side surface of the steel column 2 and fixed on the outdoor side surface of the steel column 2 at right angles to the steel column 2. Since it is fixed by the tapping screw 3a or the like reaching the steel lateral trunk edge 2a, the metal core containing the organic core material for the outer wall is formed. Widthwise length and steel post 2 of sealing material 3 is because the exterior wall organic core material containing metal panels 3 regardless of the interval to be erected can be fixed its longitudinal direction is vertical.
[0030]
Furthermore, on the outdoor side surface of the steel lateral trunk edge 2a orthogonal to the steel column 2 whose both ends are fixed to opposing surfaces of the adjacent steel column 2 and / or on the outdoor side surface of the steel column 2 FIG. 12 shows a metal panel material 3 containing an organic core material for an outer wall on the outdoor side surface of a gypsum board 1 with a metal plate fixed by tapping screws 1c reaching the steel horizontal waist edge 2a and / or the steel column 2. As shown, the steel horizontal waist edge 2a and / or the steel steel wad edge 2a and / or the steel steel wad edge 2a and / or the tapping screw 3a reaching the steel column 2 are provided on the outdoor side surface of the gypsum board 1 with a metal plate (not shown). There is a mode of fixing via a mounting accessory 4 fixed with a tapping screw 4a reaching the column 2 (hereinafter, this is a mode corresponding to claim 3, which may be referred to as a "third mode").
This third embodiment is not only for fixing the metal panel material 3 containing the organic core material for the outer wall with the longitudinal direction thereof being horizontal, but also for fixing the metal panel material 3 containing the organic core material for the external wall with the longitudinal direction thereof being vertical. Also in the case of fixing, it is preferable because it can cope without impairing the workability when fixing the metal panel material 3 containing the organic core material for the outer wall. And in this 3rd aspect, the outdoor side surface of the steel horizontal trunk | drum 2a which is orthogonal to the steel column 2 and both ends are fixed to the mutually opposing surface of the adjacent steel column 2 is the steel column 2 May be located on the indoor side or the outdoor side with respect to the outdoor side surface, but as shown in FIG. 12, the outdoor side surface of the steel horizontal trunk 2a and the outdoor side surface of the steel column 2 coincide on the same plane. If it is formed, the gypsum board 1 with a metal plate and the metal panel material 3 containing an organic core material for an outer wall can be more stably fixed, which is preferable.
[0031]
When the gypsum board 1 with a metal plate is fixed to the indoor side of the steel column 2, the gypsum board 1 with a metal plate is disposed on the indoor side of the metal plate 1 b as shown in FIGS. The metal panel material 3 containing the organic core material for the outer wall is fixed on the indoor side surface of the column 2 with the tapping screw 1c reaching the steel column 2 and the tapping screw reaching the steel column 2 on the outdoor side surface of the steel column 2. An embodiment (hereinafter, referred to as a "fourth embodiment") that is fixed at 3a or through an attachment member 4 directly fixed on the outdoor side surface of the steel column 2 by a tapping screw 4a reaching the steel column 2 (not shown). There is an aspect corresponding to claim 4).
The fourth embodiment is preferable in the case where the metal panel material 3 containing the organic core material for the outer wall is fixed with the longitudinal direction thereof horizontal as in the first embodiment.
[0032]
Further, as shown in FIG. 15, the gypsum board 1 with a metal plate is provided with the metal plate 1b on the indoor side and fixed on the indoor side surface of the steel column 2 with a tapping screw 1c (not shown) reaching the steel column 2 and for the outer wall. The metal panel material 3 containing the organic core material is fixed on the outdoor side surface of the steel column 2 at right angles to the steel column 2 on the outdoor side surface of the steel horizontal line edge 2a. With the tapping screw 3a leading to 2a, or not shown, on the outdoor side of the steel column 2 on the outdoor side of the steel column 2 fixed perpendicular to the steel column 2 There is a mode (hereinafter, referred to as a "fifth mode", which is a mode corresponding to claim 5) in which it is fixed via a mounting accessory 4 directly fixed by a tapping screw 4a reaching the trunk edge 2a.
The fifth embodiment is preferable in the case where the metal panel material 3 containing the organic core material for the outer wall is fixed with the longitudinal direction thereof being vertical as in the second embodiment.
[0033]
Further, as shown in FIG. 16, the gypsum board 1 with a metal plate is orthogonal to the steel column 2 whose both ends are fixed to the mutually opposing surfaces of the adjacent steel column 2 with the metal plate 1b disposed indoors. It is fixed on the indoor side surface of the steel horizontal trunk 2a and / or on the indoor surface of the steel column 2 with a tapping screw 1c (not shown) that reaches the steel horizontal trunk edge 2a and / or the steel column 2 and for the outer wall. The metal panel material 3 containing the organic core material is placed on the steel lateral trunk edge 2a and / or on the outdoor side surface of the steel pillar 2 with the tapping screw 3a reaching the steel lateral trunk edge 2a and / or the steel pillar 2. Or, although not shown, an installation which is directly fixed on the steel lateral trunk edge 2a and / or the outdoor side surface of the steel column 2 by the tapping screw 4a reaching the steel lateral trunk edge 2a and / or the steel column 2 A mode of fixing via the accessory 4 (hereinafter referred to as a “sixth mode”) There is a) a mode corresponding to claim 6 there is.
The sixth embodiment is similar to the third embodiment in that not only the case where the metal panel material 3 containing the organic core material for the outer wall is fixed with the longitudinal direction thereof being horizontal, but also the case where the metal panel material 3 containing the organic core material for the external wall is used. It is preferable that the fixing can be performed without impairing the workability when fixing the metal panel material 3 containing the organic core material for the outer wall even when the metal panel material 3 for fixing the outer wall is fixed vertically. And in this 6th aspect, the outdoor side surface of the steel horizontal trunk | drum 2a whose both ends are fixed orthogonally to the steel column 2 to the mutually opposing surface of the adjacent steel column 2 is the steel column 2 May be located closer to the indoor side or the outdoor side than the outdoor side face of the steel column, and both ends are fixed to the mutually opposing surfaces of the adjacent steel column 2 at right angles to the steel column 2. The indoor side surface of the edge 2a may be located on the indoor side or the outdoor side of the indoor side surface of the steel column 2, but the outdoor side surface of the steel horizontal trunk edge 2a and the outdoor side surface of the steel column 2 are the same. If they are formed so as to coincide with each other on the plane, or if the indoor side surface of the steel horizontal trunk 2a and the indoor side surface of the steel column 2 are formed so as to coincide with each other on the same plane, they are fixed to the respective surfaces. Gypsum board 1 with a metal plate and metal panel material 3 containing an organic core material for an outer wall can be more stably fixed. There.
[0034]
Since the outer wall structure according to the present invention of the various aspects having excellent fire protection and fire resistance performance has a structure in which the metal panel material 3 containing the organic core material for the outer wall is arranged on the most outdoor side, the design on the outdoor side is low. In addition to being high, since the inner and outer surfaces of the metal panel material 3 containing the organic core material for the outer wall are made of metal, the overall fire protection performance of the outer wall structure is also high.
[0035]
And in the first aspect, the third aspect, the fourth aspect, and the sixth aspect of the outer wall structure having excellent fire protection performance according to the present invention, as shown in FIG. 3 and FIG. The horizontal abutting portions 1d of each other and the horizontal abutting portions 3b of the metal panel materials 3 and 3 containing the organic core material for the outer wall are separated by at least 10 cm or more in the vertical direction, and the vertical portions of the gypsum boards 1 and 1 with the metal plate are perpendicular to each other. If the abutting portion 1e and the vertical abutting portion 3c of the metal panel material 3, 3 with the organic core material for the outer wall are located on the projected surface of the steel column 2, a portion having relatively weak fireproof and fireproof performance. Since the respective contact portions do not directly overlap with each other, the fire and fire resistance is increased, which is preferable.
[0036]
In the second, third, and sixth aspects, as shown in FIGS. 11 and 16, the horizontal abutting portions 1d of the gypsum boards 1, 1 with metal plates and the metal panel members 3, 3 with the organic core material for the outer wall are provided. The horizontal abutting portions 3b are located on the projection surface of the horizontal steel rim 2a, and the vertical abutting portions 1e of the gypsum boards 1, 1 with metal plates and the metal panel material containing the organic core material for the outer wall are provided. If the vertical abutting portions 3c of the 3, 3 are at least 10 cm apart in the horizontal direction, the respective abutting portions, which are similarly relatively weak portions of the fire and fire resistance, do not directly overlap, so that the fire and fire resistance Is more preferable.
[0037]
Further, in the third mode, the fifth mode, and the sixth mode, as shown in FIG. 15, the vertical contact portion 1e between the gypsum boards 1 and 1 with a metal plate is located on the projection surface of the steel column 2 and is used for the outer wall. If the horizontal abutting portion 3b between the metal panel members 3 and 3 containing the organic core material is located on the projection surface of the horizontal steel rim 2a, the respective fire-resisting and fire-resistant properties are similarly weak. Since the abutting portions do not directly overlap with each other, the fire prevention and fire resistance is increased, which is preferable. In this embodiment, as shown in FIG. 12, the vertical abutting portions 3c between the metal panel members 3, 3 having the organic core material for the outer wall are made of steel. If the horizontal abutting portion 1d of the gypsum board with metal plate 1 and 1 is positioned on the projection surface of the steel pillar 2 and the horizontal abutment portion 1d of the gypsum board with metal plate 1 is located on the projection surface of the steel lateral waist edge 2a, the organic material for the outer wall can be obtained. It is preferable because the metal panel material 3 containing the core material and the gypsum board 1 with a metal plate are firmly fixed. Arbitrariness.
[0038]
As described above, in each of the above embodiments, the horizontal contact portion 1d between the gypsum boards 1 and 1 with the metal plate, the horizontal contact portion 3b between the metal panel members 3 and 3 with the organic core material for the outer wall, and the gypsum board 1 with the metal plate , 1 and a vertical abutting portion 3c between the metal panel materials 3 and 3 containing the organic core material for the outer wall are positioned on the projection surface of the steel column 2 and the horizontal steel rim 2a, respectively. Or because they are separated from each other by 10 cm or more in the horizontal or vertical direction, the abutting portions, which are relatively weak portions of the fire and fire resistance, do not directly overlap with each other.
[0039]
The construction method of the outer wall structure having excellent fire protection and fire resistance performance according to the present invention in such various aspects will be described.
First, an embodiment in which the gypsum board 1 with a metal plate is fixed to the outdoor side of the steel column 2 will be described.
First, in the case of the first mode in which only the steel pillar 2 is provided (when the steel lateral trunk edge 2a is not provided), the gypsum board 1 with a metal plate is placed on the outdoor side surface of the steel pillar 2. The metal plate 1b is arranged indoors with its four circumferences in contact with each other, fixed with the tapping screw 1c reaching the steel column 2, and then the metal panel material 3 containing the organic core material for the outer wall is attached to the adjacent portion. On the outdoor side surface of the gypsum board 1 with the metal plate fixed in the abutted state, as shown in FIGS. 3 and 4, a tapping screw 3a that penetrates the gypsum board 1 with the metal plate and reaches the steel column 2, or FIG. And, as shown in FIG. 6, the gypsum board 1 with a metal plate is penetrated, and is fixed via an attachment member 4 fixed with a tapping screw 4 a reaching the steel column 2.
[0040]
In the case of the second mode in which the steel lateral trunk edge 2a fixed perpendicular to the steel pillar 2 is provided on the outdoor lateral surface of the steel pillar 2, the outdoor lateral surface of the steel lateral trunk edge 2a is provided. The metal plate 1b is arranged indoors with the gypsum board 1 having a metal plate abutted on all four sides thereof, and a tapping screw 1c reaching the steel lateral trunk edge 2a on the outdoor side surface of the steel lateral trunk edge 2a. As shown in FIGS. 7 and 8, the metal panel material 3 containing the organic core material for an outer wall is fixed on the outdoor side surface of the gypsum board 1 with the metal plate fixed in a state where the adjacent portions thereof are in contact with each other. The installation fixed with the tapping screw 3a which penetrates the gypsum board 1 with a plate and reaches the horizontal steel rim 2a, or the tapping screw 4a which penetrates the gypsum board 1 with a metal plate and reaches the horizontal steel rim 2a as shown in FIG. It is fixed via the accessory 4.
[0041]
Further, in the case of the third embodiment in which the steel lateral trunk edge 2a whose both ends are fixed to the opposing surfaces of the adjacent steel pillar 2 and which is orthogonal to the steel pillar 2, the steel lateral trunk edge is provided. The metal plate 1b is arranged indoors with the gypsum board 1 having a metal plate abutted on its four sides on the outdoor side surface of the steel column 2 and / or on the outdoor side surface of the steel column 2, and the steel lateral trunk edge 2a And / or after fixing with the tapping screw 1c reaching the steel pillar 2, the metal panel material 3 with the organic core material for the outer wall is fixed on the outdoor side surface of the gypsum board 1 with the metal plate in a state in which the adjacent portion thereof is abutted. 12, a tapping screw 3a that penetrates the gypsum board 1 with a metal plate and reaches the steel lateral waist edge 2a and / or the steel column 2 or a steel plate that penetrates the gypsum board 1 with a metal plate (not shown). Attachment fixed with tapping screws 4a to the lateral rim 2a and / or the steel column 2 Fixed through an object 4.
[0042]
When the gypsum board with metal plate 1 is fixed in these first, second and third embodiments, the gypsum board with metal plate 1 is fixed to one end of the gypsum board 1a as shown in FIG. 1 (c). In the case where the metal plate 1b whose four ends are bent so as to cover the portion is bonded and formed, as shown in FIG. , 1 has a gap due to the short length of the metal plate 1b, but there is no gap on the indoor side between the fixed gypsum boards 1 and 1 with a metal plate. As shown in FIG. 2 (c), when a tape 1f having heat resistance is attached so as to close this gap, or a caulking material 1g having heat resistance is injected so as to close this gap as shown in FIG. It is preferable because the fireproof and fireproof performance increases. 1 (a) and 1 (b), when the gypsum boards 1 and 1 having a flat metal plate are brought into contact with each other as shown in FIG. 2 (a). Although no gap is formed, it is preferable to attach a tape 1f having heat resistance to the portion where the gypsum board with metal plate 1, 1 is in contact with the gypsum board, since the fire and fire resistance is further increased. When the heat-resistant tape 1f is attached, the tape 1f may be attached to the metal plate 1b (not shown).
[0043]
Next, a mode in which the gypsum board 1 with a metal plate is fixed to the indoor side of the steel column 2 will be described.
First, in the case of the fourth mode in which only the steel columns 2 are provided (when the steel lateral trunk edge 2a is not provided), the indoor side surface of the steel columns 2 as shown in FIGS. 13 and 14. The gypsum board 1 with a metal plate is placed on the indoor side in a state where the gypsum board 1 with the metal plate is in contact with the four sides thereof, and fixed with tapping screws 1c reaching the steel pillars 2. With a tapping screw 3a reaching the steel column 2 on the outdoor side surface of the steel column 2 in a state where the adjacent portion is abutted, or a tapping screw reaching the steel column 2 on the outdoor side surface of the steel column 2 (not shown). It is fixed via the attachment 4 directly fixed at 4a.
[0044]
In the case of the fifth mode in which the steel lateral trunk edge 2a fixed perpendicular to the steel column 2 is provided on the outdoor side surface of the steel column 2, the indoor side surface of the steel column 2 is provided. The metal plate 1b is arranged indoors with the gypsum board 1 with the metal plate abutted on its four circumferences, and fixed with tapping screws 1c (not shown) reaching the steel column 2, and the metal panel material 3 with an organic core material is provided. 15 with the tapping screw 3a reaching the steel lateral fuselage edge 2a on the outdoor side surface of the steel lateral fuselage edge 2a as shown in FIG. It is fixed on the outdoor side surface via a mounting member 4 directly fixed by a tapping screw 4a reaching the steel lateral trunk edge 2a.
[0045]
Further, in the case of the sixth embodiment in which the steel horizontal trunk edge 2a whose both ends are fixed to the mutually opposing surfaces of the adjacent steel columns 2 and which is orthogonal to the steel columns 2, as shown in FIG. The gypsum board 1 with a metal plate is placed on the indoor side of the steel lateral trunk 2a and / or on the indoor side of the steel column 2 with the metal plate 1b arranged on the indoor side in a state where its four circumferences are in contact with each other. The metal panel material 3 containing the organic core material is fixed with the tapping screw 1c (not shown) reaching the steel lateral trunk edge 2a and / or the steel column 2 and the outdoor part of the steel lateral trunk edge 2a in a state where the adjacent part thereof is abutted. On the side surface and / or on the outdoor side surface of the steel column 2 with a steel lateral fuselage edge 2a and / or with a tapping screw 3a reaching the steel column 2 or not shown on the outdoor lateral side of the steel lateral fuselage edge 2a and / or Directly fixed on the outdoor side surface of the steel column 2 with the horizontal steel rim 2a and / or the tapping screw 4a reaching the steel column 2 Fixed via the attachment won game 4 that.
[0046]
When the gypsum board with metal plate 1 is fixed in these fourth, fifth and sixth embodiments, a gap as shown in FIG. 2A is generated between the gypsum boards 1 and 1 with metal plate as described above. In this case, a heat-resistant tape 1f as shown in FIG. 2B is applied, or a heat-resistant caulking material 1g as shown in FIG. Even if it may be closed, and even if there is no gap between the gypsum boards 1 and 1 with a metal plate, a tape 1f having heat resistance is attached to a portion where the adjacent gypsum boards 1 with a metal plate abut. Or you may.
[0047]
Thus, various aspects of the outer wall structure with excellent fire and fire resistance according to the present invention are constructed, and the thus constructed outer wall structure with excellent fire and fire resistance according to the present invention is excellent in workability and various. It can handle both horizontal and vertical metal panel materials of various structures and types.
[0048]
【Example】
Next, the outer wall structure according to the present invention, which is more excellent in fire resistance and fire resistance, will be described with reference to examples and comparative examples.
First, as Example 1, one side of a gypsum board 1a (trade name: Tiger Board TB, manufactured by Yoshino Gypsum Co., Ltd.) having a width of 910 mm, a height of 1,820 mm, and a thickness of 12.5 mm was formed of a metal made of a steel plate having a thickness of 0.27 mm. The plate 1b was bonded with a chloroprene-based adhesive (trade name: Diabond DC6009, SP, manufactured by Nogawa Chemical Co., Ltd.). At this time, a metal plate 1b having its four peripheral edges bent so as to cover a part of the four peripheral edges of the gypsum board 1a is adhered to the gypsum, as shown in FIG. 1 (c). Board 1 was formed. Further, as the metal panel material 3 containing the organic core material for the outer wall, the organic core material is formed of an isocyanurate resin foam, and the metal sandwich material has a fitting portion at each of the upper edge and the lower edge. A panel having a thickness of 25 mm (trade name: Tsukiboshi Tight Panel, manufactured by Nissin Sogo Kenzai Co., Ltd.) was used. Then, as shown in FIG. 2 (a), the gypsum board 1 with a metal plate is disposed with the metal plate 1b on the indoor side and fixed on the outdoor side surface of the steel column 2 with tapping screws 1c reaching the steel column 2. On the outdoor side surface of the fixed gypsum board 1 with a metal plate, the metal panel material 3 containing the organic core material for the outer wall was fixed with tapping screws 3a reaching the steel columns 2. At this time, the horizontal contact portion 1d between the gypsum boards 1 and 1 with a metal plate and the horizontal contact portion 3b between the metal panel members 3 and 3 with the organic core material for the outer wall are at the same height in the vertical direction, and The vertical contact portion 1e between the gypsum boards 1 and 1 with a metal plate and the vertical contact portion 3c between the metal panel members 3 and 3 with the organic core material for the outer wall are positioned on the projection surface of the steel column 2. A gypsum board with a metal plate 1 and a metal panel material 3 with an organic core material were fixed.
[0049]
Example 2 The same as Example 1 except that as the metal panel material 2 containing the organic core material for the outer wall, a material in which one inorganic fiber net 3d made of a glass fiber net was inserted into the organic core material was used. It was taken.
[0050]
As Example 3, the horizontal contact portion 1d between the gypsum boards 1 and 1 with a metal plate and the horizontal contact portion 3b between the metal panel members 3 and 3 containing the organic core material for the outer wall are fixed so as to be separated by 10 cm in the vertical direction. Except having performed, it was the same as that of Example 1.
[0051]
On the other hand, Comparative Example 1 was the same as Example 1 except that the same gypsum board 1a as in Example 1 without a metal plate was used.
[0052]
Further, as Comparative Example 2, a steel plate having a thickness of 100 μm was coated on one side of the same gypsum board as in Example 1 so as to cover a part of the four edges of the gypsum board as shown in FIG. It was the same as Example 1 except that the end was bent and the gypsum board 1a was adhered with the adhesive and used.
[0053]
The outer wall structures of Examples 1 to 3 and Comparative Examples 1 and 2 were heated from the outdoor side of the metal panel material 3 containing the organic core material for the outer wall with a temperature curve as shown in FIG. Fire prevention for measuring the temperature of the indoor side surface of the gypsum board opposite to the side (the indoor side surface of the metal plate in Examples 1 to 3 and Comparative Example 2, the indoor side surface of the gypsum board in Comparative Example 1) A fire resistance test was performed. FIG. 19 shows the time-dependent change in the maximum temperature of the indoor side surface of the gypsum board opposite to the heating side, as a result of the fire prevention and fire resistance performance test.
[0054]
In Comparative Example 1, which was a gypsum board without a metal plate, a rapid temperature increase was observed 20 minutes after the start of heating, and a part of the gypsum board was found to have cracks. Some parts were found to have collapsed. If the phenomenon in which the gypsum board itself collapses occurs in this way, assuming an outdoor fire in an actual building, if there is any combustible material indoors near the part where the gypsum board itself collapsed, If the combustibles are ignited, there is a high risk of fire on the indoor side.
[0055]
In Comparative Example 2, which was a gypsum board in which a steel plate having a thickness of 100 μm was bonded to one side of the gypsum board, a rapid temperature increase was observed 25 minutes after the start of heating. As in Comparative Example 1, a part of the gypsum board had cracks, and a part of the gypsum board itself collapsed. The portion where the gypsum board itself has collapsed is a portion corresponding to the position of the horizontal contact portion 3b between the metal panel members 3, 3 containing the organic core material for the outer wall, and the horizontal contact portion 3b is the most fireproof and fireproof. It is considered that the gypsum board collapsed in this part because it is a part weak in performance. Further, in Comparative Example 2, although there was a slight effect as compared with Comparative Example 1, the thickness and the rigidity and strength of the steel plate were so weak that the gypsum board collapsed because the thickness was as thin as 100 μm, and at the same time, the steel plate was impacted by the impact. The phenomenon that a hole was opened was also recognized.
[0056]
On the other hand, in Example 1, which is a gypsum board with a metal plate in which a metal plate 1b made of a steel plate having a thickness of 0.27 mm is adhered to one surface of the gypsum board 1a, a rapid temperature increase was observed 45 minutes after the start of heating. Was done. This is because after the water of the gypsum contained in the gypsum board 1a evaporates and almost causes chemical change to calcined gypsum and the cooling action of the gypsum crystallization water is lost, cracks are formed in a part of the gypsum board 1a. This is because there was no portion where the gypsum board 1a itself collapsed or collapsed. Then, no holes were formed in the steel plate as in Comparative Example 2, which was a gypsum board in which a steel plate having a thickness of 100 μm was bonded to one surface of the gypsum board 1a. This is thought to be due to the fact that the gypsum board 1a having a thickness of 0.27 mm, which is the gypsum board 1 with the metal plate of Example 1, was prevented from collapsing and perforating the gypsum board 1a by the thick steel plate 1b. Can be
[0057]
In Example 2, a rapid temperature rise was recognized 50 minutes after the start of heating. This is because one inorganic fiber net 3d is inserted into the organic core material of the metal panel material 3 containing the organic core material for the outer wall, so that the organic core material made of the isocyanurate resin foam is carbonized by heating. Although the shrinkage caused cracks, the inorganic fiber net 3d inserted into the organic core material suppressed the progress of the cracks and minimized the organic core material from falling off from a predetermined position. This is considered to be due to the fact that transmission of heat from the outdoor side to the indoor side was reduced.
[0058]
Further, in Example 3, no rapid temperature increase was observed up to about 55 minutes after the start of heating. This is because the horizontal contact portion 1d between the gypsum boards 1 and 1 with the metal plate, which is the portion having the weakest fire protection performance, and the horizontal contact portion 3b between the metal panels 3 and 3 with the organic core material for the outer wall are in the vertical direction. It is considered that heat is hardly transmitted from the outdoor side to the indoor side because of being fixed at a distance of 10 cm from the outside.
[0059]
As described above, in the case of Examples 1 to 3 having the outer wall structure excellent in fire protection and fire resistance performance according to the present invention, a metal plate 1b made of a steel plate having a thickness of 0.27 mm is bonded to one surface of the gypsum board 1a. Since the gypsum board 1 with a plate is used, the time until the rapid temperature rise is recognized after the start of heating is compared with Comparative Example 1 which is a gypsum board to which a metal plate is not bonded or a steel plate having a thickness of 100 μm is bonded. It was longer than that of Comparative Example 2, and it was confirmed that the gypsum board 1a was prevented from collapsing and perforation was also prevented, and that it had a superior fireproof and fireproof effect as compared with the conventional outer wall structure. .
[0060]
In addition, the inorganic fiber net 3d is inserted into the organic core material of the metal panel material 3 containing the organic core material for the outer wall as in the second embodiment, and the fireproof and fireproof performance is relatively weak as in the third embodiment. It was also confirmed that if the respective contact portions were not directly overlapped, the more excellent fire prevention and fire resistance effect was increased, which was preferable.
[0061]
Next, as Example 4, a gypsum board 1 with a metal plate was formed in exactly the same manner as in Example 1 in which a metal plate 1b made of a steel plate having a thickness of 0.27 mm was bonded to one surface of a gypsum board 1a. While the gypsum board 1 is in contact with the four circumferences, the metal plate 1b is arranged on the indoor side and fixed on the indoor side surface of the steel column 2 with the tapping screw 1c reaching the steel column 2 and the organic core material is An organic core for an outer wall which is exactly the same as that of Example 1 and is made of a metal sandwich panel having a thickness of 25 mm, which is made of a foamed isocyanurate resin, and has a thickness of 25 mm made of a metal sandwich panel having a fitting portion at each of an upper edge and a lower edge. The metal panel material 3 containing the material was fixed on the outdoor side surface of the steel column 2 with a tapping screw 3a reaching the steel column 2. At this time, the horizontal contact portion 1d between the gypsum boards 1 and 1 with a metal plate and the horizontal contact portion 3b between the metal panel members 3 and 3 with the organic core material for the outer wall are at the same height in the vertical direction, and The vertical contact portion 1e between the gypsum boards 1 and 1 with a metal plate and the vertical contact portion 3c between the metal panel members 3 and 3 with the organic core material for the outer wall are positioned on the projection surface of the steel column 2. A gypsum board with a metal plate 1 and a metal panel material 3 with an organic core material were fixed.
[0062]
Example 5 was the same as Example 4 except that a metal panel material 3 containing an organic core material for an outer wall having a thickness of 35 mm and the same configuration as the metal sandwich panel of Example 4 was used.
[0063]
On the other hand, Comparative Example 3 was the same as Example 4 except that the same gypsum board 1a as in Example 1 where no metal plate was used was used.
[0064]
With respect to the outer wall structures of Examples 4 to 5 and Comparative Example 3, a temperature curve as shown in FIG. After heating, the temperature of the indoor side surface of the gypsum board opposite to the heating side (the indoor side surface of the metal plate in Examples 4 to 5, and the indoor side surface of the gypsum board in Comparative Example 3) is measured. A fire and fire resistance test was performed. FIG. 20 shows the time-dependent change of the maximum temperature of the indoor side surface of the gypsum board opposite to the heating side as a result of the fire prevention and fire resistance performance test.
[0065]
As can be seen from FIG. 20, in Comparative Example 3, which was a gypsum board 1a to which a metal plate was not bonded, a rapid temperature rise was observed 35 minutes after the start of heating, and cracks occurred in a part of the gypsum board. A part was observed, and a part where the gypsum board itself collapsed was also observed.
[0066]
On the other hand, in Example 4 of the gypsum board 1 with the metal plate in which the metal plate 1b made of a steel plate having a thickness of 0.27 mm was adhered to one surface of the gypsum board 1a, a rapid temperature increase was recognized 50 minutes after the start of heating. However, as in Comparative Example 3 which was a gypsum board to which a metal plate was not adhered, no rapid temperature increase was observed in 35 minutes. This is a gypsum board 1a made of a thick steel plate 1b having a thickness of 0.27 mm in Example 3, which is a gypsum board 1 with a metal plate, similarly to the fire prevention and fire resistance performance tests for Examples 1 to 3 and Comparative Examples 1 and 2. It is considered that this is due to the prevention of collapse and dropping of holes.
[0067]
Further, in Example 5 using the metal panel material 3 containing an organic core material for an outer wall having a thickness of 35 mm, no rapid temperature increase was recognized even after 60 minutes from the start of heating. This is considered to be due to the fact that the thickness of the metal panel material 3 containing the organic core material for the outer wall was 10 mm thicker than that of Example 3.
[0068]
As can be seen from the above test results, it was confirmed that the outer wall structure according to the present invention, which has excellent fire protection performance, exhibited a superior fire protection effect against heat as compared with the conventional outer wall structure.
[0069]
【The invention's effect】
As described in detail above, the outer wall structure according to the present invention, which is excellent in fire resistance and fire resistance, comprises a gypsum board made of a steel plate, an aluminum plate or a copper plate on at least one side thereof, and having a plate thickness of 0.27 to 0.6 mm. Is attached to a gypsum board with a metal plate, and the gypsum board with the metal plate is fixed to a steel pillar and / or a horizontal steel rim by tapping screws with the metal plate disposed on the indoor side. When the gypsum board is heated, cracking of the gypsum board and collapse of the gypsum board due to the crack can be minimized, and the gypsum board with the metal plate is in contact with its four circumferences It is a structure that is fixed to the outdoor side of the gypsum board with a metal plate in a state where the metal panel material containing the organic core material for the outer wall is abutted on the adjacent portion, so that the design property is not impaired Heat it is possible to minimize the phenomenon of spread of the indoor side occurs enters rapidly indoor side from the outdoor side.
[0070]
Then, when fixing the gypsum board with a metal plate to the outdoor side of the steel column, a metal panel material containing an organic core material for an outer wall is used.
On the outdoor side of a steel pillar, on the outdoor side of a gypsum board with a metal plate fixed with tapping screws to the steel column, on the outdoor side, or on the outdoor side of the gypsum board with a metal plate. It can be fixed via a mounting accessory fixed with tapping screws to the pillar,
Outdoor side of gypsum board with metal plate fixed with tapping screws to the horizontal side of the steel on the outdoor side of the horizontal side of the steel that is fixed on the outdoor side of the steel column perpendicular to the steel column Fixed on the outside side of the gypsum board with a metal plate on the outside side of the gypsum board with a steel pin through the mounting member fixed with the tapping screw to the steel side girth,
The steel horizontal body on the outdoor side surface of the steel horizontal body edge perpendicular to the steel column and / or on the outdoor side surface of the steel type pillar, both ends of which are fixed to opposing surfaces of the adjacent steel column. On the outside side of the gypsum board with metal plate fixed with rims and / or tapping screws to the steel columns, with the steel lateral trunk edge and / or with the tapping screws to the steel columns, or on the outside of the gypsum board with metal plates If fixed on the side via a mounting member fixed by tapping screws to the steel lateral fuselage and / or the steel column,
It is preferable because it can be applied to various construction methods, various structures and types of metal panel materials, and can provide an outer wall structure excellent in fire resistance and fire resistance without impairing the workability.
[0071]
When fixing a gypsum board with a metal plate to the indoor side of a steel column,
A gypsum board with a metal plate is fixed on the indoor side surface of the steel column with a tapping screw leading to the steel column, and a metal panel material with an organic core for the outer wall is formed on the outdoor side surface of the steel column as the steel column. Or fixed on the outdoor side of the steel column via an attachment that is directly secured by the tapping screw to the steel column,
A gypsum board with a metal plate is fixed on the indoor side surface of the steel column with a tapping screw leading to the steel column, and a metal panel material with an organic core for the outer wall is formed on the outdoor side surface of the steel column as the steel column. It is fixed at right angles to the steel pillar on the outdoor side of the steel lateral fuselage on the outdoor side surface of the steel lateral fuselage, or on the outdoor lateral surface of the steel pillar. Fixed on the outdoor side surface of the steel lateral fuselage via an attachment that is directly fixed with tapping screws to the steel lateral fuselage,
Plastered gypsum board with metal plate is placed on the indoor side of the horizontal steel rim and / or on the indoor side of the steel column that is perpendicular to the steel column and whose ends are fixed to the opposing surfaces of the adjacent steel column. The metal panel material with the organic core material for the outer wall is fixed on the steel lateral fuselage and / or the tapping screw to the steel column, and is placed on the outdoor side surface of the steel lateral fuselage and / or the steel column. With the tapping screw leading to the steel lateral fuselage and / or the steel column, or on the outdoor side of the steel lateral fuselage and / or the steel column, the steel lateral fuselage and / or the steel column If it is fixed via the attachment that is directly fixed with the tapping screw to
It is preferable because it can be applied to various construction methods, various structures and types of metal panel materials, and can provide an outer wall structure excellent in fire resistance and fire resistance without impairing the workability.
[0072]
Further, in the above various outer wall structures, the steel lateral trunk edge is fixed on the outdoor side surface of the steel column orthogonally to the steel column or the steel column is formed on the opposing surfaces of the adjacent steel columns. In a mode in which both ends of the steel horizontal trunk are fixed perpendicular to the pillars, the construction is easy regardless of whether the metal panel material containing the organic core material is stretched vertically or horizontally.
[0073]
Further, the horizontal abutting portions of the gypsum boards with a metal plate and the horizontal abutting portions of the metal panel materials containing the organic core material for the outer wall are separated by at least 10 cm or more in the vertical direction, and the vertical abutting portions of the gypsum boards with the metal plates. The part and the vertical contact part between the metal panel materials containing the organic core material for the outer wall are located on the projected surface of the steel column, or the horizontal contact part between the gypsum boards with metal plates and the organic core material for the outer wall The horizontal abutting portion between the metal panel materials including the metal panel material is located on the projection surface of the steel lateral trunk, and the vertical abutting portion between the gypsum boards with a metal plate and the metal panel material including the organic core material for the outer wall. A metal panel material containing an organic core material for an outer wall, wherein a vertical contact portion is at least horizontally separated by 10 cm or more, or a vertical contact portion between gypsum boards with a metal plate is located on a projection surface of a steel column. The horizontal abutment between the two In this case, in this case, the vertical contact portion between the metal panels containing the organic core material for the outer wall is located on the projection surface of the steel column, and the horizontal contact portion between the gypsum boards with the metal plate. If the contact part is located on the projected surface of the steel horizontal trunk, the horizontal contact part between the gypsum boards with a metal plate and the horizontal contact part between the metal panel materials containing the organic core material for the outer wall, and the metal In the case where the vertical abutting portions of the plasterboards with plates and the vertical abutting portions of the metal panel materials containing the organic core material for the outer wall are located on the projection surface of the steel pillar or the steel lateral trunk, respectively. The fixation is strengthened, and the horizontal abutting portions between the gypsum boards with metal plates and the horizontal abutting portions between the metal panel materials containing the organic core material for the outer wall, and the vertical abutting portions between the gypsum boards with the metal plates and the outer wall. The vertical contact area between metal panel materials containing machine core material is horizontal or vertical If you are away or 10cm in direction, since each contact sites fireproof fire performance is relatively weak sites do not overlap directly, it Preferred increased fire protection fire resistance.
[0074]
Further, if the organic core material of the metal panel material containing the organic core material for the outer wall is made of an isocyanurate resin foam, a phenol resin foam or a urethane phenol resin foam, the organic core material is heated when heated. Since the organic core material itself is not easily melted and is carbonized without being melted, the organic core material is hard to fall off from a predetermined position. If 1 to 3 inorganic fiber nets are inserted into the organic core of the metal panel material containing the machine core, the organic core may melt or carbonize and crack when heated. This is preferable because it can be prevented from falling off from the predetermined position.
[0075]
Furthermore, if the thickness of the metal panel material containing the organic core material for the outer wall is 25 mm to 50 mm, both the fire resistance and the economical workability of the metal panel material containing the organic core material for the outer wall are preferable, and If the gypsum board with a metal plate is a gypsum board with a metal plate in which the metal plate is bonded to at least one surface of the gypsum board with an adhesive having heat resistance of 100 ° C. or more, the fire resistance and fire resistance of the gypsum board with a metal plate are improved. It is preferred.
[0076]
The value of contributing to the construction field of the outer wall structure according to the present invention having such various effects and having excellent fire protection and fire resistance performance is very large.
[Brief description of the drawings]
FIG. 1 is a cross-sectional explanatory view showing a structural example of a gypsum board with a metal plate used for an outer wall structure having excellent fire protection and fire resistance according to the present invention.
FIG. 2 is an explanatory side sectional view showing an example of a state in which a gypsum board with a metal plate is fixed to an outdoor side of a steel column in an outer wall structure having excellent fire protection performance according to the present invention.
FIG. 3 is a perspective explanatory view showing a construction state in an embodiment of the outer wall structure having excellent fire protection performance according to the present invention.
FIG. 4 is an explanatory side sectional view showing an outer wall structure having an excellent fire protection performance in FIG. 3;
FIG. 5 is a perspective explanatory view showing a construction state in another embodiment of an outer wall structure having excellent fire protection and fire resistance according to the present invention using a mounting accessory.
FIG. 6 is an explanatory side sectional view showing an outer wall structure having an excellent fire protection performance in FIG. 5;
FIG. 7 is a perspective explanatory view showing a construction state in still another embodiment of the outer wall structure having excellent fire protection performance according to the present invention.
FIG. 8 is an explanatory side sectional view showing an outer wall structure having an excellent fire protection performance in FIG. 7;
FIG. 9 is a perspective explanatory view showing a construction state in still another embodiment of an outer wall structure having excellent fire protection and fire resistance performance according to the present invention using a mounting accessory.
FIG. 10 is an explanatory side sectional view showing an outer wall structure having an excellent fire protection performance in FIG. 9;
FIG. 11 is a perspective explanatory view showing a construction state of still another embodiment of the outer wall structure having excellent fire protection performance according to the present invention.
FIG. 12 is a perspective explanatory view showing a construction state in still another embodiment of the outer wall structure having excellent fire protection performance according to the present invention.
FIG. 13 is a perspective explanatory view showing a construction state in still another embodiment of the outer wall structure having excellent fire protection performance according to the present invention.
FIG. 14 is an explanatory side sectional view showing an outer wall structure having excellent fire protection performance in FIG. 13;
FIG. 15 is a perspective explanatory view showing a construction state in still another embodiment of the outer wall structure having excellent fire protection performance according to the present invention.
FIG. 16 is a perspective explanatory view showing a construction state of still another embodiment of the outer wall structure having excellent fire protection performance according to the present invention.
FIG. 17 is a cross-sectional view showing an example of the structure of a metal panel material containing an organic core material for an outer wall in which an inorganic fiber net is inserted into an organic core material used for an outer wall structure having excellent fire protection performance according to the present invention. FIG.
FIG. 18 is a diagram illustrating a temperature curve of the metal panel material containing an organic core material heated from the outdoor side with respect to the outer wall structures of the example and the comparative example.
FIG. 19 is a diagram showing a temperature change on the indoor side surface of the gypsum board in the outer wall structures of Examples 1-2 and Comparative Examples 1-2.
FIG. 20 is a diagram illustrating a temperature change on the indoor side surface of the gypsum board in the outer wall structures of Examples 3 to 4 and Comparative Example 3.
[Explanation of symbols]
1 Gypsum board with metal plate
1a Gypsum board
1b metal plate
1c tapping screw
1d Horizontal contact area
1e Vertical contact part
1f Heat resistant tape
1g Caulking material with heat resistance
2 steel columns
2a Horizontal steel rim
3 Metal panel material with organic core for exterior wall
3a Tapping screw
3b Horizontal contact area
3c Vertical contact part
3d inorganic fiber net
4 Mounting accessories
4a Tapping screw

Claims (14)

鋼製柱（２）の屋外側面上に、石膏ボード（１ａ）の少なくとも片面に鋼板，アルミ板又は銅板から成り板厚が０．２７〜０．６ｍｍである金属板（１ｂ）が接着されている金属板付石膏ボード（１）がその四周を当接させた状態で該金属板（１ｂ）を屋内側に配して該鋼製柱（２）に至るタッピンビス（１ｃ）で固定されていると共に、
外壁用有機芯材入り金属パネル材（３）が、その隣接部分を当接された状態で、該金属板付石膏ボード（１）の屋外側面上に該鋼製柱（２）に至るタッピンビス（３ａ）で、又は該金属板付石膏ボード（１）の屋外側面上に該鋼製柱（２）に至るタッピンビス（４ａ）で固定された取付け役物（４）を介して、固定されていることを特徴とする防火耐火性能に優れた外壁構造。A metal plate (1b) made of a steel plate, an aluminum plate or a copper plate and having a thickness of 0.27 to 0.6 mm is bonded to at least one surface of the gypsum board (1a) on the outdoor side surface of the steel column (2). The gypsum board with a metal plate (1) is fixed with a tapping screw (1c) reaching the steel column (2) by disposing the metal plate (1b) indoors with its four circumferences abutting. ,
A tapping screw (3) reaching the steel column (2) on the outdoor side surface of the gypsum board with metal plate (1) in a state where the metal panel material (3) containing the organic core material for the outer wall is in contact with the adjacent portion. 3a) or being fixed on the outdoor side surface of the gypsum board with metal plate (1) via a mounting member (4) fixed with a tapping screw (4a) reaching the steel column (2). Outer wall structure with excellent fire and fire resistance. 鋼製柱（２）の屋外側面上に該鋼製柱（２）に直交して固定されている鋼製横胴縁（２ａ）の屋外側面上に、石膏ボード（１ａ）の少なくとも片面に鋼板，アルミ板又は銅板から成り板厚が０．２７〜０．６ｍｍである金属板（１ｂ）が接着されている金属板付石膏ボード（１）がその四周を当接させた状態で該金属板（１ｂ）を屋内側に配して該鋼製横胴縁（２ａ）に至るタッピンビス（１ｃ）で固定されていると共に、
外壁用有機芯材入り金属パネル材（３）が、その隣接部分を当接された状態で、該金属板付石膏ボード（１）の屋外側面上に該鋼製横胴縁（２ａ）に至るタッピンビス（３ａ）で、又は該金属板付石膏ボード（１）の屋外側面上に該鋼製横胴縁（２ａ）に至るタッピンビス（４ａ）で固定された取付け役物（４）を介して、固定されていることを特徴とする防火耐火性能に優れた外壁構造。At least one side of the gypsum board (1a) is provided on at least one surface of the gypsum board (1a) on the outdoor side surface of the steel lateral waist edge (2a) fixed orthogonally to the steel column (2) on the outdoor side surface of the steel column (2). A gypsum board (1) with a metal plate to which a metal plate (1b) made of an aluminum plate or a copper plate and having a plate thickness of 0.27 to 0.6 mm is adhered, with its four peripheries in contact with each other. 1b) is disposed indoors and is fixed with tapping screws (1c) reaching the steel lateral trunk edge (2a);
A metal panel material (3) containing an organic core material for an outer wall reaches the steel lateral waist edge (2a) on the outdoor side surface of the gypsum board with a metal plate (1) in a state where the metal panel material (3) is in contact with the adjacent portion. Secured with tapping screws (3a) or via mounting members (4) secured by tapping screws (4a) on the outdoor side surface of the gypsum board with metal plate (1) to the steel lateral waist edge (2a) Outer wall structure with excellent fire and fire resistance. 隣合う鋼製柱（２）の互いに対向する面に両端が固定されている該鋼製柱（２）と直交する鋼製横胴縁（２ａ）の屋外側面上及び／又は該鋼製柱（２）の屋外側面上に、石膏ボード（１ａ）の少なくとも片面に鋼板，アルミ板又は銅板から成り板厚が０．２７〜０．６ｍｍである金属板（１ｂ）が接着されている金属板付石膏ボード（１）がその四周を当接させた状態で該金属板（１ｂ）を屋内側に配して該鋼製横胴縁（２ａ）及び／又は該鋼製柱（２）に至るタッピンビス（１ｃ）で固定されていると共に、
外壁用有機芯材入り金属パネル材（３）が、その隣接部分を当接された状態で、該金属板付石膏ボード（１）の屋外側面上に該鋼製横胴縁（２ａ）及び／又は該鋼製柱（２）に至るタッピンビス（３ａ）で、又は該金属板付石膏ボード（１）の屋外側面上に該鋼製横胴縁（２ａ）及び／又は該鋼製柱（２）に至るタッピンビス（４ａ）で固定された取付け役物（４）を介して、固定されていることを特徴とする防火耐火性能に優れた外壁構造。On the outdoor side surface of a horizontal steel rim (2a) orthogonal to the steel column (2) whose both ends are fixed to opposing surfaces of the adjacent steel column (2) and / or the steel column ( Gypsum with a metal plate having a metal plate (1b) made of a steel plate, an aluminum plate or a copper plate and having a thickness of 0.27 to 0.6 mm adhered to at least one surface of the gypsum board (1a) on the outdoor side surface of 2). The metal plate (1b) is arranged indoors while the board (1) is in contact with the four circumferences thereof, and the tapping screws (2) reaching the steel lateral trunk (2a) and / or the steel column (2) are arranged. 1c)
A metal panel material (3) containing an organic core material for an outer wall is placed on the outdoor side surface of the gypsum board with a metal plate (1) in a state where the metal panel material (3) is in contact with an adjacent portion thereof. Or with a tapping screw (3a) leading to the steel column (2), or on the outdoor side surface of the gypsum board with metal plate (1) to the steel lateral trunk edge (2a) and / or the steel column (2). An outer wall structure excellent in fire resistance and fire resistance, wherein the outer wall structure is fixed via an attachment member (4) fixed with a tapping screw (4a). 鋼製柱（２）の屋内側面上に、石膏ボード（１ａ）の少なくとも片面に鋼板，アルミ板又は銅板から成り板厚が０．２７〜０．６ｍｍである金属板（１ｂ）が接着されている金属板付石膏ボード（１）がその四周を当接させた状態で該金属板（１ｂ）を屋内側に配して該鋼製柱（２）に至るタッピンビス（１ｃ）で固定されていると共に、
外壁用有機芯材入り金属パネル材（３）が、その隣接部分を当接された状態で、該鋼製柱（２）の屋外側面上に該鋼製柱（２）に至るタッピンビス（３ａ）で、又は該鋼製柱（２）の屋外側面上に該鋼製柱（２）に至るタッピンビス（４ａ）で直接固定された取付け役物（４）を介して、固定されていることを特徴とする防火耐火性能に優れた外壁構造。A metal plate (1b) made of a steel plate, an aluminum plate or a copper plate and having a thickness of 0.27 to 0.6 mm is adhered to at least one surface of the gypsum board (1a) on the indoor side surface of the steel column (2). The gypsum board with a metal plate (1) is fixed with a tapping screw (1c) reaching the steel column (2) by disposing the metal plate (1b) indoors with its four circumferences abutting. ,
A tapping screw (3a) reaching the steel column (2) on the outdoor side surface of the steel column (2) in a state where the metal panel material (3) containing the organic core material for the outer wall is in contact with the adjacent portion. ) Or on an outdoor side surface of the steel column (2) via a mounting member (4) directly fixed by a tapping screw (4a) reaching the steel column (2). Outer wall structure with excellent fire and fire resistance. 鋼製柱（２）の屋内側面上に、石膏ボード（１ａ）の少なくとも片面に鋼板，アルミ板又は銅板から成り板厚が０．２７〜０．６ｍｍである金属板（１ｂ）が接着されている金属板付石膏ボード（１）がその四周を当接させた状態で該金属板（１ｂ）を屋内側に配して該鋼製柱（２）に至るタッピンビス（１ｃ）で固定されていると共に、
外壁用有機芯材入り金属パネル材（３）が、その隣接部分を当接された状態で、該鋼製柱（２）の屋外側面上に該鋼製柱（２）に直交して固定されている鋼製横胴縁（２ａ）の屋外側面上に該鋼製横胴縁（２ａ）に至るタッピンビス（３ａ）で、又は該鋼製柱（２）の屋外側面上に該鋼製柱（２）に直交して固定されている鋼製横胴縁（２ａ）の屋外側面上に該鋼製横胴縁（２ａ）に至るタッピンビス（４ａ）で直接固定された取付け役物（４）を介して、固定されていることを特徴とする防火耐火性能に優れた外壁構造。A metal plate (1b) made of a steel plate, an aluminum plate or a copper plate and having a thickness of 0.27 to 0.6 mm is adhered to at least one surface of the gypsum board (1a) on the indoor side surface of the steel column (2). The gypsum board with a metal plate (1) is fixed with a tapping screw (1c) reaching the steel column (2) by disposing the metal plate (1b) indoors with its four circumferences abutting. ,
A metal panel material (3) containing an organic core material for an outer wall is fixed orthogonally to the steel column (2) on the outdoor side surface of the steel column (2) in a state where an adjacent portion thereof is abutted. Tapping screw (3a) on the outdoor side surface of the steel horizontal waist edge (2a) being provided, or on the outdoor side surface of the steel horizontal pillar (2a). An attachment member (4) directly fixed on the outdoor side surface of the steel lateral fuselage (2a) fixed perpendicular to (2) with a tapping screw (4a) reaching the steel lateral fuselage (2a). An outer wall structure excellent in fire protection and fire resistance, characterized by being fixed via a through hole. 隣合う鋼製柱（２）の互いに対向する面に両端が固定されている該鋼製柱（２）と直交する鋼製横胴縁（２ａ）の屋内側面上及び／又は該鋼製柱（２）の屋内側面上に、石膏ボード（１ａ）の少なくとも片面に鋼板，アルミ板又は銅板から成り板厚が０．２７〜０．６ｍｍである金属板（１ｂ）が接着されている金属板付石膏ボード（１）がその四周を当接させた状態で該金属板（１ｂ）を屋内側に配して該鋼製横胴縁（２ａ）及び／又は該鋼製柱（２）に至るタッピンビス（１ｃ）で固定されていると共に、
外壁用有機芯材入り金属パネル材（３）が、その隣接部分を当接された状態で、該鋼製横胴縁（２ａ）及び／又は該鋼製柱（２）の屋外側面上に該鋼製横胴縁（２ａ）及び／又は該鋼製柱（２）に至るタッピンビス（３ａ）で、又は該鋼製横胴縁（２ａ）及び／又は該鋼製柱（２）の屋外側面上に該鋼製横胴縁（２ａ）及び／又は該鋼製柱（２）に至るタッピンビス（４ａ）で直接固定された取付け役物（４）を介して、固定されていることを特徴とする防火耐火性能に優れた外壁構造。On the indoor side surface of a steel lateral trunk edge (2a) orthogonal to the steel column (2) whose both ends are fixed to opposing surfaces of the adjacent steel column (2) and / or the steel column ( 2) On the indoor side surface, the gypsum board (1a) has a metal plate (1b) made of a steel plate, an aluminum plate or a copper plate and having a thickness of 0.27 to 0.6 mm adhered to at least one surface of the gypsum board (1a). The metal plate (1b) is arranged indoors while the board (1) is in contact with the four circumferences thereof, and the tapping screws (2) reaching the steel lateral trunk (2a) and / or the steel column (2) are arranged. 1c)
The metal panel material (3) containing the organic core material for the outer wall is placed on the outdoor side surface of the steel lateral waist edge (2a) and / or the steel pillar (2) in a state where the adjoining portions are abutted. With a tapping screw (3a) leading to the steel lateral fuselage (2a) and / or the steel column (2), or the outdoor side surface of the steel lateral fuselage (2a) and / or the steel column (2) It is characterized in that it is fixed via an attachment member (4) directly fixed by tapping screws (4a) leading to the steel lateral trunk edge (2a) and / or the steel column (2). Outer wall structure with excellent fire and fire resistance. 金属板付石膏ボード（１，１）同士の水平当接部位（１ｄ）と外壁用有機芯材入り金属パネル材（３，３）同士の水平当接部位（３ｂ）とが少なくとも垂直方向に１０ｃｍ以上離れており、且つ金属板付石膏ボード（１，１）同士の垂直当接部位（１ｅ）と外壁用有機芯材入り金属パネル材（３，３）同士の垂直当接部位（３ｃ）とが鋼製柱（２）の投影面上に位置している請求項１，３，４又は６に記載の防火耐火性能に優れた外壁構造。The horizontal contact part (1d) between the gypsum boards (1, 1) with metal plates and the horizontal contact part (3b) between the metal panel materials (3, 3) containing the organic core material for the outer wall are at least 10 cm in the vertical direction. The vertical contact portions (1e) between the gypsum boards (1, 1) with the metal plate and the vertical contact portions (3c) between the metal panel materials (3, 3) containing the organic core material for the outer wall are separated from each other. 7. The outer wall structure having excellent fire protection performance according to claim 1, 3, 4 or 6, wherein is located on the projection surface of the steel column (2). 金属板付石膏ボード（１，１）同士の水平当接部位（１ｄ）と外壁用有機芯材入り金属パネル材（３，３）同士の水平当接部位（３ｂ）とが鋼製横胴縁（２ａ）の投影面上に位置しており、且つ金属板付石膏ボード（１，１）同士の垂直当接部位（１ｅ）と外壁用有機芯材入り金属パネル材（３，３）同士の垂直当接部位（３ｃ）とが少なくとも水平方向に１０ｃｍ以上離れている請求項２，３又は６に記載の防火耐火性能に優れた外壁構造。The horizontal contact portion (1d) between the gypsum boards (1, 1) with metal plate and the horizontal contact portion (3b) between the metal panel materials (3, 3) containing the organic core material for the outer wall are steel lateral trunk edges. The vertical contact portion (1e) between the gypsum boards (1,1) with the metal plate and the metal panel material (3,3) containing the organic core material for the outer wall are located on the projection plane of (2a). The outer wall structure excellent in fire protection performance according to claim 2, 3 or 6, wherein the vertical contact portion (3c) is separated at least 10 cm or more in the horizontal direction. 金属板付石膏ボード（１，１）同士の垂直当接部位（１ｅ）が鋼製柱（２）の投影面上に位置しており、且つ外壁用有機芯材入り金属パネル材（３，３）同士の水平当接部位（３ｂ）が鋼製横胴縁（２ａ）の投影面上に位置している請求項３，５又は６に記載の防火耐火性能に優れた外壁構造。The vertical contact portion (1e) between the gypsum boards (1, 1) with metal plates is located on the projection surface of the steel column (2), and the metal panel material (3, 3) containing the organic core material for the outer wall is provided. 7. The outer wall structure according to claim 3, 5 or 6, wherein the horizontal abutting portions (3b) are located on the projection surface of the horizontal steel rim (2a). 外壁用有機芯材入り金属パネル材（３，３）同士の垂直当接部位（３ｃ）が鋼製柱（２）の投影面上に位置しており、且つ金属板付石膏ボード（１，１）同士の水平当接部位（１ｄ）が鋼製横胴縁（２ａ）の投影面上に位置している請求項９に記載の防火耐火性能に優れた外壁構造。The vertical contact portion (3c) between the metal panel members (3, 3) containing the organic core material for the outer wall is located on the projection surface of the steel column (2), and the gypsum board (1, 1) with a metal plate is provided. 10. The outer wall structure according to claim 9, wherein the horizontal abutting portions (1d) are located on the projection surface of the horizontal steel rim (2a). 外壁用有機芯材入り金属パネル材（３）の有機芯材が、イソシアヌレート樹脂発泡体，フェノール樹脂発泡体又はウレタンフェノール樹脂発泡体より成る請求項１から１０までの何れか１項に記載の防火耐火性能に優れた外壁構造。The organic core material of the metal panel material (3) containing an organic core material for an outer wall comprises an isocyanurate resin foam, a phenol resin foam or a urethane phenol resin foam according to any one of claims 1 to 10. Outer wall structure with excellent fire protection and fire resistance described. 外壁用有機芯材入り金属パネル材（３）の有機芯材に、無機繊維ネット（３ｄ）が１〜３枚挿入されている請求項１から１１までの何れか１項に記載の防火耐火性能に優れた外壁構造。The fire protection according to any one of claims 1 to 11, wherein one to three inorganic fiber nets (3d) are inserted into the organic core material of the metal panel material (3) containing an organic core material for an outer wall. Outer wall structure with excellent fire resistance. 外壁用有機芯材入り金属パネル材（３）の厚さが２５ｍｍ〜５０ｍｍである請求項１から１２までの何れか１項に記載の防火耐火性能に優れた外壁構造。The outer wall structure according to any one of claims 1 to 12, wherein the thickness of the metal panel material (3) containing the organic core material for the outer wall is 25 mm to 50 mm. 金属板付石膏ボード（１）が、石膏ボード（１ａ）の少なくとも片面に金属板（１ｂ）が１００℃以上の耐熱性を有する接着剤で接着されている金属板付石膏ボードである請求項１から１３までの何れか１項に記載の防火耐火性能に優れた外壁構造。The gypsum board with a metal plate (1) is a gypsum board with a metal plate in which the metal plate (1b) is bonded to at least one surface of the gypsum board (1a) with an adhesive having heat resistance of 100 ° C. or more. The outer wall structure having excellent fire protection performance according to any one of the above.
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012001901A (en) * 2010-06-14 2012-01-05 Asahi Kasei Homes Co Outer circumferential wall structure of building
JP2012102459A (en) * 2010-11-05 2012-05-31 Nihon Glass Fiber Industrial Co Ltd Fireproof and soundproof structure for wall
JP2012117234A (en) 2010-11-30 2012-06-21 Asahi Chubu Shizai Kk Incombustible interior panel having covering sheet and attachment structure thereof
JP2015074953A (en) * 2013-10-11 2015-04-20 アイジー工業株式会社 Framework panel
JP2016040430A (en) * 2014-08-12 2016-03-24 新日鐵住金株式会社 Bearing wall
JP2017197936A (en) * 2016-04-26 2017-11-02 株式会社ノーリツ Producing method for wall panel
KR102566818B1 (en) * 2023-05-23 2023-08-11 사단법인 한국화재보험협회 Plant steel protection wall capable of blocking radiant heat

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012001901A (en) * 2010-06-14 2012-01-05 Asahi Kasei Homes Co Outer circumferential wall structure of building
JP2012102459A (en) * 2010-11-05 2012-05-31 Nihon Glass Fiber Industrial Co Ltd Fireproof and soundproof structure for wall
JP2012117234A (en) 2010-11-30 2012-06-21 Asahi Chubu Shizai Kk Incombustible interior panel having covering sheet and attachment structure thereof
JP2015074953A (en) * 2013-10-11 2015-04-20 アイジー工業株式会社 Framework panel
JP2016040430A (en) * 2014-08-12 2016-03-24 新日鐵住金株式会社 Bearing wall
JP2017197936A (en) * 2016-04-26 2017-11-02 株式会社ノーリツ Producing method for wall panel
KR102566818B1 (en) * 2023-05-23 2023-08-11 사단법인 한국화재보험협회 Plant steel protection wall capable of blocking radiant heat

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