JP4077763B2

JP4077763B2 - Building wall structure and building

Info

Publication number: JP4077763B2
Application number: JP2003145395A
Authority: JP
Inventors: 雅裕末永
Original assignee: Sekisui Chemical Co Ltd
Current assignee: Sekisui Chemical Co Ltd
Priority date: 2003-05-22
Filing date: 2003-05-22
Publication date: 2008-04-23
Anticipated expiration: 2023-05-22
Also published as: JP2004346627A

Description

【０００１】
【発明の属する技術分野】
本発明は建物の壁構造及び建物に関する。
【０００２】
【従来の技術】
建物の壁構造として、特許文献１に記載の如く、建物の構造躯体の屋外側に外断熱材を施工し、柱や梁による冷橋をなくし、内壁材の結露を防止するものがある。
【０００３】
また、特許文献２に記載の如く、建物の構造躯体にパネル化した外壁パネルを取付けて外壁を構成するカーテンウォール方式の壁構造もある。
【特許文献１】
特開２００２−１５５５８８号公報（２頁、図１）
【特許文献２】
特開平１０−７２８８６号公報（１頁、図２）
【０００４】
【発明が解決しようとする課題】
特許文献１の壁構造は、パネル化していない外断熱材を構造躯体に取付けるものであり、施工工数が多大になり、高コストになる。
【０００５】
特許文献２の壁構造は、外壁パネルの断熱材装填部が、構造躯体の枠内に配設されるものであり、断熱材装填部が柱や梁を屋外に対して被覆するものでない。柱や梁による冷橋をなくす外断熱構造を構成するところがない。
【０００６】
本発明の課題は、構造躯体の冷橋をなくす建物の壁構造において、施工性を向上することにある。
【０００７】
【課題を解決するための手段】
請求項１の発明は、建物の構造躯体の屋外側に断熱性を有する外壁を設け、この外壁により構造躯体を屋外に対して覆う建物の壁構造において、断熱性を有する外壁パネルにより前記外壁を構成し、前記外壁パネルが、枠体の両面に板材を貼付け、両板材の間に断熱材を装填してなり、前記外壁パネルが取着された構造躯体における、外壁パネルの屋内側に内壁パネルを設けてなり、前記内壁パネルが枠体の屋内に臨む面に内壁材を貼付け、枠体の内部に内壁パネル内の内断熱材を有し、建物の構造躯体の枠内に内壁パネルを嵌め込む如くに配置され、外壁パネルの屋内側の板材と内壁パネルとの間に内断熱材を装填してなるものである。
【０００８】
請求項２の発明は、請求項１の発明において更に、前記外壁パネルが、枠体に貼付けた屋外側の板材の外側に外装材を取付け、この板材と外装材の間に通気層を形成するようにしたものである。
【０００９】
請求項３の発明は、請求項１又は２の発明において更に、前記外壁パネルが、構造躯体にボルトで取着される取付金具を備えてなるようにしたものである。
【００１０】
請求項４の発明は、請求項３の発明において更に、前記取付金具が、外壁パネルの屋内側の板材の屋内側に沿った鉛直板を備え、外壁パネルの枠体に設けられているようにしたものである。
【００１１】
請求項５の発明は、請求項１〜４のいずれかの発明の建物の壁構造を備えた建物である。
【００１２】
請求項６の発明は、請求項５の発明において更に、建物が、工場生産された複数の建物ユニットを水平方向、鉛直方向に並置したユニット建物である。
【００１３】
【作用】
請求項１、５，６の発明によれば下記の作用がある。
構造躯体を屋外に対して覆う外壁を、断熱性を有する外壁パネルにより構成した。従って、構造躯体の冷橋をなくす外壁をパネル化した外壁パネルによりカーテンウォール化でき、施工性を向上できる。
外壁パネルが、枠体の両面に板材を貼付け、両板材の間に断熱材を装填して構成される。従って、断熱材の装填固定が確実になり、取扱いが容易で断熱性能がバラツキのないものになる。
外壁パネルの屋内側に内壁パネルを設けることにより、床材や天井材に対する内壁材の納まり性を向上できる。
内壁パネルが断熱性を有することにより、壁全体の断熱性を向上できる。
【００１４】
請求項２の発明によれば、下記の作用がある。
外壁パネルと外装材の間の通気層が、外壁内の湿気を換気して取り除くことができ、断熱性を向上できるし、夏場の外壁の加熱を防止できる。
【００１５】
請求項３、４の発明によれば下記の作用がある。
外壁パネルがボルトで取着される取付金具を備えることにより、外壁パネルを構造躯体に簡易に取付けできる。
【００１６】
【発明の実施の形態】
図１は第１実施形態の２階建の建物の壁構造を示す断面図、図２は図１の要部を示し、（Ａ）は外壁パネルの下部取付構造を示す断面図、（Ｂ）は外壁パネルの上部取付構造を示す断面図、図３は外壁パネルの枠組を示し、（Ａ）は端面図、（Ｂ）は正面図、図４は第２実施形態の窓を備えた建物の壁構造を示す断面図、図５は第３実施形態の屋根下の建物の壁構造を示す断面図、図６は第４実施形態の建物壁構造を示す断面図、図７は図６の要部を示し、（Ａ）は外壁パネルの下部取付構造を示す断面図、（Ｂ）は外壁パネルの上部取付構造を示す断面図である。
【００１７】
（第１実施形態）（図１〜図３）
第１実施形態は、２階建のユニット建物１Ａに本発明を適用したものである。
【００１８】
ユニット建物１Ａは、工場生産された複数の建物ユニット１０を水平方向、鉛直方向に並置したものである。図１は、建築現場に設けた基礎２の上に下階の建物ユニット１０（１０Ａ）を据付け、その上に上階の建物ユニット１０（１０Ｂ）を搭載した部分を示す。
【００１９】
建物ユニット１０（１０Ａも１０Ｂも同じ）は、４本の角鋼管等からなる柱１１（不図示）の下端部間にＣ形鋼等の床梁１２を方形に架け渡すとともに、柱１１の上端部間にＣ形鋼等の天井梁１３を方形に架け渡した直方体状の鉄骨等からなる柱梁構造躯体を有する。
【００２０】
建物ユニット１０は、相対する床梁１２に複数本の床小梁１２Ａを架け渡し、床小梁１２Ａの上に床根太１２Ｂを支持し、床根太１２Ｂの上に床材１２Ｃを配設してある。また、建物ユニット１０は、相対する天井梁１３に複数本の天井根太１３Ａを架け渡し、天井根太１３Ａの下に天井材１３Ｂを配設してある。
【００２１】
建物ユニット１０は、柱１１と床梁１２と天井梁１３からなる構造躯体の枠内に内壁パネル２０を嵌め込む如くに設置してある。内壁パネル２０は、枠体２１の屋内に臨む面に石膏ボードからなる内壁材２２を貼付け、枠体２１の内部にグラスウールの内断熱材２３（内壁パネル内の内断熱材）を装填し、枠体２１の下枠２１Ａを床材１２Ｃ、床根太１２Ｂに釘打ち固定し、枠体２１の上枠２１Ｂを天井材１３Ｂ、天井根太１３Ａに釘打ち固定する。内壁パネル２０は、内断熱材２３の屋外側にグラスウールの内断熱材２４（パネル間の内断熱材）を添い設け、この内断熱材２４を柱１１と床梁１２と天井梁１３の枠内で、柱１１と床梁１２と天井梁１３の外面に面一となる範囲に装填する。
【００２２】
ユニット建物１Ａは、建物ユニット１０の柱１１と床梁１２と天井梁１３からなる構造躯体の屋外側に断熱性を有する外壁３を設け、この外壁３により柱１１と床梁１２と天井梁１３を屋外に対して覆う。本実施形態では、外壁３を外壁パネル３０により構成してある。
【００２３】
外壁パネル３０は、枠体３１（下枠３１Ａ、上枠３１Ｂ、縦枠３１Ｃ）（図３）の屋内側に臨む面に石膏ボードからなる板材３２を貼付けるとともに、屋外側に臨む面に合板等からなる板材３３を貼付け、両板材３２、３３の間にグラスウールの外断熱材３４を装填したものである。外壁パネル３０は、枠体３１の下枠３１ＡにＺ字状の取付金具３５を設け、この取付金具３５を床梁１２にボルト止めし（図２（Ａ））、枠体３１の上枠３１ＢにＬ字状の取付金具３６を設け、この取付金具３６を天井梁１３にボルト止めする（図２（Ｂ））。取付金具３５は、Ｚ字の水平板を下枠３１Ａの下面に取付け、Ｚ字の鉛直板を床梁１２の屋外に臨む外面にボルト止めされる。取付金具３６は、Ｌ字の水平板を上枠３１Ｂの上面に取付け、Ｌ字の鉛直板を天井梁１３の屋外に臨む外面にボルト止めされる。これにより、建物ユニット１０に取付けられた外壁パネル３０の屋内側に内壁パネル２０を設けたことになる。
【００２４】
外壁パネル３０は、枠体３１に取付けた屋外側の板材３３の外側に外装材３７を取付け、この板材３３と外装材３７の間に通気層３８を形成する。上下階の建物ユニット１０Ａ、１０Ｂの通気層３８は互いに連続し、下階建物ユニット１０Ａの通気層３８は基礎２の土台モール４の側傍から外界に連通し、上階建物ユニット１０Ｂの通気層３８は屋根裏の通気層に連続する。外装材３７は、外壁パネル３０に予め一体化されてパネルの一部を構成するものでも良いし、外壁パネル３０と別体化されて後付けされるものでも良い。
【００２５】
尚、ユニット建物１Ａにおいて、下階の建物ユニット１０Ａの外壁パネル３０の下枠３１Ａと基礎２の上面との間にはシール材３９Ａが介装される。また、上下階の建物ユニット１０Ａ、１０Ｂの境界部で、下階の外壁パネル３０の上枠３１Ｂと上階の外壁パネル３０の下枠３１Ａの間にはロックウールの断熱材３９Ｂが介装される。外壁パネル３０は、建物ユニット１０の工場生産段階で取付けられても良いし、建物ユニット１０の現場施工段階で取付けられても良い。
【００２６】
第１実施形態によれば以下の作用がある。
(1)構造躯体を屋外に対して覆う外壁３を、断熱性を有する外壁パネル３０により構成した。従って、構造躯体の冷橋をなくす外壁３をパネル化した外壁パネル３０によりカーテンウォール化でき、施工性を向上できる。
【００２７】
(2)外壁パネル３０が、枠体３１の両面に板材３２、３３を貼付け、両板材３２、３３の間に外断熱材３４を装填して構成される。従って、外断熱材３４の装填固定が確実になり、取扱いが容易で断熱性能がバラツキのないものになる。
【００２８】
(3)外壁パネル３０が取付金具３５、３６を備えることにより、外壁パネル３０を構造躯体に簡易に取付けできる。
【００２９】
(4)外壁パネル３０と外装材３７の間の通気層３８が、外壁３内の湿気を換気して取り除くことができ、断熱性を向上できるし、夏場の外壁３の加熱を防止できる。
【００３０】
(5)外壁パネル３０の屋内側に内壁パネル２０を設けることにより、床材１２Ｃや天井材１３Ｂに対する内壁材２２の納まり性を向上できる。
【００３１】
(6)内壁パネル２０が断熱性を有することにより、壁全体の断熱性を向上できる。
【００３２】
（第２実施形態）（図４）
第２実施形態のユニット建物１Ｂが第１実施形態のユニット建物１Ａと異なる点は、建物ユニット１０の外壁３を構成する内壁パネル２０と外壁パネル３０に開口部４０を設け、この開口部４０に窓４１を設けたことにある。
【００３３】
ユニット建物１Ｂにあっては、窓４１を外壁３の屋外側に設けることにより、壁パネル２０、３０に嵌め込んだ窓枠４２の奥行空間を屋内に開放し、屋内スペースを拡張できる。窓４１を外壁３の屋内側に設けるものとすれば、窓枠４２の奥行空間を屋外に開放し、外壁３の厚みを外観に表わし、ユニット建物１Ｂの重厚感を増すことができる。
【００３４】
（第３実施形態）（図５）
第３実施形態のユニット建物１Ｃが第１実施形態のユニット建物１Ａと異なる点は、建物ユニット１０の天井梁１３に垂木５０を支持し、この垂木５０に屋根材５１を配設し、屋根材５１から連続する庇５２を外壁３の上部に取付けたことにある。
【００３５】
また、ユニット建物１０における４本の天井梁１３の枠内にグラスウールの内断熱材５３を装填し、４本の柱１１（不図示）の上端面及び４本の天井梁１３の上面を含む屋根裏の全域に外断熱材５４を装填し、屋根材５１と外断熱材５４の間に通気層５５を形成し、この通気層５５を外壁３の通気層３８に連続させた。
【００３６】
ユニット建物１Ｃにあっては、天井梁１３を含む屋根全体が外断熱材５４により断熱されて冷橋がなくなり、天井材１３Ｂ等の結露を防止できる。また、通気層５５が屋根裏の湿気を換気して取り除くことができ、断熱性を向上できるし、夏場の屋根裏の加熱を防止できる。
【００３７】
（第４実施形態）（図６、図７）
第４実施形態の建物１Ｄは、構造躯体として、建物ユニット１０を用いずに、Ｈ形鋼等の鉄骨からなる柱１１（不図示）、床梁１２、天井梁１３を建築現場で接合した柱梁構造躯体を採用した。建物１Ｄにあっても、ユニット建物１Ａと同様に、床梁１２に床小梁１２Ａ、床根太１２Ｂ、床材１２Ｃを設け、天井梁１３に天井根太１３Ａ、天井材１３Ｂを設け、柱１１と床梁１２と天井梁１３からなる構造躯体の枠内に内壁パネル２０を嵌め込む如くに設置している。
【００３８】
建物１Ｄの外壁３も、ユニット建物１Ａと同様の外壁パネル３０により構成してある。建物１Ｄの外壁パネル３０がユニット建物１Ａの外壁パネル３０と異なる点は、枠体３１の下枠３１ＡにＺ字状の取付金具６１を設け、この取付金具６１をＨ形鋼製床梁１２の上フランジにボルト止めし（図７（Ａ））、枠体３１の上枠３１ＢにＬ字状の取付金具６２を設け、この取付金具６２をＨ形鋼製天井梁１３の下フランジにボルト止めした（図７（Ｂ））ことにある。取付金具６１は、Ｚ字の下水平板を下枠３１Ａの下面に取付け、Ｚ字の上水平板を床梁１２の上フランジにボルト止めされる。取付金具６２は、Ｌ字の鉛直板を上枠３１Ｂの側面に取付け、Ｌ字の水平板を天井梁１３の下フランジにボルト止めされる。
【００３９】
以上、本発明の実施の形態を図面により詳述したが、本発明の具体的な構成はこの実施の形態に限られるものではなく、本発明の要旨を逸脱しない範囲の設計の変更等があっても本発明に含まれる。例えば、本発明はＲＣ造の建物にも適用できる。
【００４０】
【発明の効果】
本発明によれば、構造躯体の冷橋をなくす建物の壁構造において、施工性を向上することができる。
【図面の簡単な説明】
【図１】図１は第１実施形態の２階建の建物の壁構造を示す断面図である。
【図２】図２は図１の要部を示し、（Ａ）は外壁パネルの下部取付構造を示す断面図、（Ｂ）は外壁パネルの上部取付構造を示す断面図である。
【図３】図３は外壁パネルの枠組を示し、（Ａ）は端面図、（Ｂ）は正面図である。
【図４】図４は第２実施形態の窓を備えた建物の壁構造を示す断面図である。
【図５】図５は第３実施形態の屋根下の建物の壁構造を示す断面図である。
【図６】図６は第４実施形態の建物壁構造を示す断面図である。
【図７】図７は図６の要部を示し、（Ａ）は外壁パネルの下部取付構造を示す断面図、（Ｂ）は外壁パネルの上部取付構造を示す断面図である。
【符号の説明】
１Ａ〜１Ｄ建物
３外壁
２０内壁パネル
２３内断熱材（内壁パネル内）
２４内断熱材（パネル間）
３０外壁パネル
３１枠体
３２、３３板材
３４外断熱材
３５、３６取付金具
３７外装材
３８通気層[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a building wall structure and a building .
[0002]
[Prior art]
As a building wall structure, as disclosed in Patent Document 1, an outer heat insulating material is installed on the outdoor side of a building structural frame to eliminate a cold bridge made of pillars and beams, thereby preventing condensation of the inner wall material.
[0003]
Further, as described in Patent Document 2, there is also a curtain wall type wall structure in which an outer wall panel is attached to a structural frame of a building to constitute the outer wall.
[Patent Document 1]
JP 2002-155588 A (page 2, FIG. 1)
[Patent Document 2]
JP-A-10-72886 (1 page, FIG. 2)
[ 0004 ]
[Problems to be solved by the invention]
The wall structure of Patent Document 1 attaches an external heat insulating material that is not made into a panel to a structural housing, which requires a large number of construction steps and high costs.
[ 0005 ]
In the wall structure of Patent Document 2, the heat insulating material loading portion of the outer wall panel is disposed within the frame of the structural housing, and the heat insulating material loading portion does not cover the columns and beams with respect to the outdoors. There is no place to construct an outer heat insulation structure that eliminates the cold bridge made of pillars and beams.
[ 0006 ]
An object of the present invention is to improve workability in a wall structure of a building that eliminates a cold bridge of a structural frame.
[ 0007 ]
[Means for Solving the Problems]
According to the first aspect of the present invention, an outer wall having a heat insulating property is provided on the outdoor side of the structural frame of the building, and the outer wall is formed by the outer wall panel having a heat insulating property in the wall structure of the building that covers the structural frame with respect to the outside by the outer wall. The outer wall panel is configured by attaching a plate material to both sides of the frame body and loading a heat insulating material between the two plate materials, and the inner wall panel on the indoor side of the outer wall panel in the structural housing to which the outer wall panel is attached. The inner wall panel is affixed to the surface of the frame facing the interior of the frame, the inner wall panel has an inner heat insulating material in the inner wall panel, and the inner wall panel is fitted into the frame of the structural frame of the building. The inner heat insulating material is loaded between the plate material on the indoor side of the outer wall panel and the inner wall panel .
[ 0008 ]
According to a second aspect of the present invention, in the first aspect of the present invention, the outer wall panel further includes an exterior material attached to the outside of the outdoor-side plate attached to the frame, and a ventilation layer is formed between the plate and the exterior material. It is what I did.
[ 0009 ]
According to a third aspect of the present invention, in the first or second aspect of the present invention, the outer wall panel further includes a mounting bracket attached to the structural housing with a bolt .
[ 0010 ]
According to a fourth aspect of the present invention, in the third aspect of the present invention, the mounting bracket further includes a vertical plate along the indoor side of the plate member on the indoor side of the outer wall panel, and is provided on the frame of the outer wall panel. It is a thing.
[ 0011 ]
The invention of claim 5 is a building provided with the building wall structure of any one of claims 1 to 4 .
[ 0012 ]
The invention of claim 6 is the unit building according to the invention of claim 5, wherein the building is a unit building in which a plurality of factory-produced building units are juxtaposed in the horizontal direction and the vertical direction.
[ 0013 ]
[Action]
According to the inventions of claims 1 , 5 and 6 , there are the following actions.
The outer wall that covers the structural housing with respect to the outside was constituted by an outer wall panel having heat insulation properties. Therefore, a curtain wall can be formed by the outer wall panel in which the outer wall that eliminates the cold bridge of the structural frame is formed, and the workability can be improved.
The outer wall panel is configured by sticking plate materials on both sides of the frame body and loading a heat insulating material between the two plate materials. Therefore, the heat insulating material can be securely loaded and fixed, and can be handled easily without any variation in the heat insulating performance.
By providing the inner wall panel on the indoor side of the outer wall panel, it is possible to improve the fitability of the inner wall material with respect to the floor material and the ceiling material.
When the inner wall panel has a heat insulating property, the heat insulating property of the entire wall can be improved.
[ 0014 ]
According to invention of Claim 2, there exists the following effect | action.
The ventilation layer between the outer wall panel and the exterior material can ventilate and remove moisture in the outer wall, improve heat insulation, and prevent heating of the outer wall in summer.
[ 0015 ]
According to the third and fourth aspects of the invention, the following effects can be obtained .
By providing the mounting bracket to which the outer wall panel is attached with a bolt , the outer wall panel can be easily attached to the structural frame.
[ 0016 ]
DETAILED DESCRIPTION OF THE INVENTION
1 is a cross-sectional view showing a wall structure of a two-story building according to the first embodiment, FIG. 2 is a cross-sectional view showing a main part of FIG. 1, (A) is a cross-sectional view showing a lower mounting structure of an outer wall panel, and (B). Fig. 3 is a sectional view showing an upper mounting structure of an outer wall panel, Fig. 3 shows a frame of the outer wall panel, (A) is an end view, (B) is a front view, and Fig. 4 is a building having a window of the second embodiment. FIG. 5 is a sectional view showing the wall structure of the building under the roof of the third embodiment, FIG. 6 is a sectional view showing the building wall structure of the fourth embodiment, and FIG. (A) is sectional drawing which shows the lower attachment structure of an outer wall panel, (B) is sectional drawing which shows the upper attachment structure of an outer wall panel.
[ 0017 ]
First Embodiment (FIGS. 1 to 3)
In the first embodiment, the present invention is applied to a two-story unit building 1A.
[ 0018 ]
The unit building 1A is a plurality of factory-produced building units 10 juxtaposed in the horizontal direction and the vertical direction. FIG. 1 shows a portion where a lower floor building unit 10 (10A) is installed on a foundation 2 provided at a construction site, and an upper floor building unit 10 (10B) is mounted thereon.
[ 0019 ]
The building unit 10 (10A and 10B is the same) has a floor beam 12 made of C-shaped steel or the like bridged between the lower ends of columns 11 (not shown) made of four square steel pipes and the like, and the upper ends of the columns 11 It has a column beam structure frame made of a rectangular steel frame or the like in which a ceiling beam 13 such as C-shaped steel is bridged in a square shape between the parts.
[ 0020 ]
The building unit 10 bridges a plurality of floor beams 12A to the opposite floor beams 12, supports the floor joists 12B on the floor beams 12A, and arranges the floor material 12C on the floor joists 12B. is there. Moreover, the building unit 10 has a plurality of ceiling joists 13 A bridged over the opposing ceiling beams 13, and a ceiling member 13 B is disposed under the ceiling joists 13 A.
[ 0021 ]
The building unit 10 is installed so that the inner wall panel 20 is fitted in a frame of a structural frame composed of columns 11, floor beams 12, and ceiling beams 13. The inner wall panel 20 is affixed with an inner wall material 22 made of gypsum board on the surface of the frame body 21 facing inside, and is loaded with glass wool inner heat insulating material 23 (inner heat insulating material in the inner wall panel) inside the frame body 21. The lower frame 21A of the body 21 is nail-fixed to the flooring 12C and the floor joist 12B, and the upper frame 21B of the frame 21 is nail-fixed to the ceiling material 13B and the ceiling joist 13A. The inner wall panel 20 is provided with a glass wool inner heat insulating material 24 (an inner heat insulating material between the panels) on the outdoor side of the inner heat insulating material 23, and the inner heat insulating material 24 is installed in the frame of the column 11, the floor beam 12, and the ceiling beam 13. Thus, the outer surfaces of the pillar 11, the floor beam 12, and the ceiling beam 13 are loaded so as to be flush with each other.
[ 0022 ]
In the unit building 1A, the outer wall 3 having heat insulation is provided on the outdoor side of the structural frame composed of the column 11, the floor beam 12, and the ceiling beam 13 of the building unit 10, and the column 11, the floor beam 12, and the ceiling beam 13 are provided by the outer wall 3. Covering against the outdoors. In the present embodiment, the outer wall 3 is constituted by the outer wall panel 30.
[ 0023 ]
The outer wall panel 30 has a plaster board 32 attached to the surface facing the indoor side of the frame 31 (lower frame 31A, upper frame 31B, vertical frame 31C) (FIG. 3), and plywood facing the outdoor side. A plate material 33 made of, for example, is attached, and an outer heat insulating material 34 of glass wool is loaded between the two plate materials 32, 33. The outer wall panel 30 is provided with a Z-shaped mounting bracket 35 on the lower frame 31A of the frame 31, and the mounting bracket 35 is bolted to the floor beam 12 (FIG. 2A). Is provided with an L-shaped mounting bracket 36, and the mounting bracket 36 is bolted to the ceiling beam 13 (FIG. 2B). The mounting bracket 35 attaches a Z-shaped horizontal plate to the lower surface of the lower frame 31 A, and is bolted to the outer surface of the floor beam 12 facing the outside. The mounting bracket 36 has an L-shaped horizontal plate attached to the upper surface of the upper frame 31B, and the L-shaped vertical plate is bolted to the outer surface of the ceiling beam 13 facing the outside. Thus, the inner wall panel 20 is provided on the indoor side of the outer wall panel 30 attached to the building unit 10.
[ 0024 ]
In the outer wall panel 30, an exterior material 37 is attached to the outside of the outdoor side plate material 33 attached to the frame body 31, and a ventilation layer 38 is formed between the plate material 33 and the exterior material 37. The ventilation layers 38 of the upper and lower floor building units 10A and 10B are continuous with each other. The ventilation layer 38 of the lower floor building unit 10A communicates with the outside from the side of the foundation mall 4 of the foundation 2, and the ventilation layer of the upper floor building unit 10B. 38 continues to the ventilation layer of the attic. The exterior material 37 may be integrated with the outer wall panel 30 in advance to constitute a part of the panel, or may be separated from the outer wall panel 30 and attached later.
[ 0025 ]
In the unit building 1A, a sealing material 39A is interposed between the lower frame 31A of the outer wall panel 30 of the building unit 10A on the lower floor and the upper surface of the foundation 2. Further, at the boundary between the building units 10A and 10B on the upper and lower floors, a rock wool heat insulating material 39B is interposed between the upper frame 31B of the outer wall panel 30 on the lower floor and the lower frame 31A of the outer wall panel 30 on the upper floor. The The outer wall panel 30 may be attached at the factory production stage of the building unit 10 or may be attached at the site construction stage of the building unit 10.
[ 0026 ]
According to the first embodiment, there are the following operations.
(1) The outer wall 3 that covers the structural housing with respect to the outside is constituted by an outer wall panel 30 having heat insulation properties. Therefore, a curtain wall can be formed by the outer wall panel 30 in which the outer wall 3 that eliminates the cold bridge of the structural frame is formed, and the workability can be improved.
[ 0027 ]
(2) The outer wall panel 30 is configured by sticking plate members 32 and 33 on both sides of the frame 31 and loading an outer heat insulating material 34 between the plate members 32 and 33. Accordingly, the outer heat insulating material 34 can be reliably loaded and fixed, easy to handle, and the heat insulating performance does not vary.
[ 0028 ]
(3) Since the outer wall panel 30 includes the mounting brackets 35 and 36, the outer wall panel 30 can be easily attached to the structural housing.
[ 0029 ]
(4) The ventilation layer 38 between the outer wall panel 30 and the exterior material 37 can ventilate and remove moisture in the outer wall 3, improve heat insulation, and prevent heating of the outer wall 3 in summer.
[ 0030 ]
(5) By providing the inner wall panel 20 on the indoor side of the outer wall panel 30, it is possible to improve the fitability of the inner wall material 22 with respect to the flooring 12C and the ceiling material 13B.
[ 0031 ]
(6) Since the inner wall panel 20 has heat insulation, the heat insulation of the whole wall can be improved.
[ 0032 ]
Second Embodiment (FIG. 4)
The unit building 1B of the second embodiment is different from the unit building 1A of the first embodiment in that an opening 40 is provided in the inner wall panel 20 and the outer wall panel 30 constituting the outer wall 3 of the building unit 10, and the opening 40 is provided in the opening 40. A window 41 is provided.
[ 0033 ]
In the unit building 1B, by providing the window 41 on the outdoor side of the outer wall 3, the depth space of the window frame 42 fitted into the wall panels 20 and 30 can be opened indoors and the indoor space can be expanded. If the window 41 is provided on the indoor side of the outer wall 3, the depth space of the window frame 42 can be opened to the outside, the thickness of the outer wall 3 can be expressed in appearance, and the solid feeling of the unit building 1 B can be increased.
[ 0034 ]
(Third Embodiment) (FIG. 5)
The unit building 1C of the third embodiment is different from the unit building 1A of the first embodiment in that a rafter 50 is supported on the ceiling beam 13 of the building unit 10, and a roof material 51 is disposed on the rafter 50, and the roof material This is because the flange 52 continuous from 51 is attached to the upper part of the outer wall 3.
[ 0035 ]
In addition, the glass wool inner heat insulating material 53 is loaded in the frame of the four ceiling beams 13 in the unit building 10, and the attic including the upper ends of the four columns 11 (not shown) and the upper surfaces of the four ceiling beams 13. The outer heat insulating material 54 was loaded in the entire area, and a ventilation layer 55 was formed between the roof material 51 and the outer heat insulating material 54, and this ventilation layer 55 was made continuous with the ventilation layer 38 of the outer wall 3.
[ 0036 ]
In the unit building 1C, the entire roof including the ceiling beam 13 is insulated by the outer heat insulating material 54 to eliminate the cold bridge, and condensation on the ceiling material 13B and the like can be prevented. Moreover, the ventilation layer 55 can ventilate and remove moisture from the attic, improve heat insulation, and prevent heating of the attic in the summer.
[ 0037 ]
(4th Embodiment) (FIG. 6, FIG. 7)
The building 1D of the fourth embodiment is a column in which a pillar 11 (not shown) made of a steel frame such as H-shaped steel, a floor beam 12, and a ceiling beam 13 are joined as a structural frame at a building site without using the building unit 10. A beam structure was adopted. Even in the building 1D, similarly to the unit building 1A, the floor beam 12 is provided with the floor beam 12A, the floor joist 12B, and the floor material 12C, the ceiling beam 13 is provided with the ceiling joist 13A, and the ceiling material 13B. The inner wall panel 20 is installed in a frame of a structural frame composed of the floor beam 12 and the ceiling beam 13.
[ 0038 ]
The outer wall 3 of the building 1D is also configured by the same outer wall panel 30 as that of the unit building 1A. The outer wall panel 30 of the building 1D is different from the outer wall panel 30 of the unit building 1A in that a Z-shaped mounting bracket 61 is provided on the lower frame 31A of the frame 31 and the mounting bracket 61 is attached to the H-shaped steel floor beam 12. The upper flange 31 is bolted to the upper flange (FIG. 7A), and an L-shaped mounting bracket 62 is provided on the upper frame 31B of the frame 31. This mounting bracket 62 is bolted to the lower flange of the H-shaped steel ceiling beam 13. (FIG. 7B). The mounting bracket 61 has a Z-shaped lower horizontal plate attached to the lower surface of the lower frame 31 A, and the Z-shaped upper horizontal plate is bolted to the upper flange of the floor beam 12. The mounting bracket 62 has an L-shaped vertical plate attached to the side surface of the upper frame 31 B, and an L-shaped horizontal plate is bolted to the lower flange of the ceiling beam 13.
[ 0039 ]
The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and there are design changes and the like without departing from the gist of the present invention. Is included in the present invention. For example, the present invention can be applied to an RC building.
[ 0040 ]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, workability | operativity can be improved in the wall structure of the building which loses the cold bridge of a structural frame.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a wall structure of a two-story building according to a first embodiment.
2 is a cross-sectional view showing the lower wall mounting structure of the outer wall panel, and FIG. 2 (B) is a cross sectional view showing the upper wall mounting structure of the outer wall panel.
3A and 3B show a framework of an outer wall panel, in which FIG. 3A is an end view and FIG. 3B is a front view.
FIG. 4 is a cross-sectional view showing a wall structure of a building including a window according to a second embodiment.
FIG. 5 is a cross-sectional view showing a wall structure of a building under a roof according to a third embodiment.
FIG. 6 is a cross-sectional view showing a building wall structure according to a fourth embodiment.
7 is a cross-sectional view showing the lower wall mounting structure of the outer wall panel, and FIG. 7 (B) is a cross sectional view showing the upper wall mounting structure of the outer wall panel.
[Explanation of symbols]
1A-1D Building 3 Exterior wall 20 Interior wall panel
23 Inside insulation (inside wall panel)
24 Internal insulation (between panels)
30 Outer Wall Panel 31 Frame 32, 33 Plate Material 34 Outer Thermal Insulation Material 35, 36 Mounting Bracket 37 Exterior Material 38 Ventilation Layer

Claims

In the wall structure of the building where the outer wall having heat insulation is provided on the outdoor side of the structural frame of the building, and the outer wall covers the structural frame with respect to the outdoor,
The outer wall is constituted by an outer wall panel having heat insulation properties ,
The outer wall panel is formed by sticking a plate material on both sides of the frame body and loading a heat insulating material between the two plate materials,
In the structural housing to which the outer wall panel is attached, an inner wall panel is provided on the indoor side of the outer wall panel,
The inner wall panel has an inner wall material affixed to the surface of the frame facing the indoor, the inner wall panel has an inner heat insulating material in the inner wall panel, and is arranged so that the inner wall panel is fitted into the frame of the structural frame of the building. ,
A wall structure of a building, wherein an inner heat insulating material is loaded between a plate material on the indoor side of the outer wall panel and the inner wall panel .

2. The building wall structure according to claim 1, wherein the outer wall panel attaches an exterior material to an outside of an outdoor-side plate attached to the frame, and forms a ventilation layer between the plate and the exterior .

The building wall structure according to claim 1, wherein the outer wall panel includes a mounting bracket that is attached to the structural housing with a bolt .

4. The building wall structure according to claim 3 , wherein the mounting bracket includes a vertical plate along an indoor side of a plate material on the indoor side of the outer wall panel, and is provided on a frame body of the outer wall panel .

The building provided with the wall structure of the building in any one of Claims 1-4.

The building according to claim 5, wherein the building is a unit building in which a plurality of factory-produced building units are juxtaposed in a horizontal direction and a vertical direction .