JP4081204B2

JP4081204B2 - Unit building

Info

Publication number: JP4081204B2
Application number: JP13024399A
Authority: JP
Inventors: 一高青木
Original assignee: Sekisui Chemical Co Ltd
Current assignee: Sekisui Chemical Co Ltd
Priority date: 1999-05-11
Filing date: 1999-05-11
Publication date: 2008-04-23
Anticipated expiration: 2019-05-11
Also published as: JP2000320009A

Description

【０００１】
【発明の属する技術分野】
本発明は、内部を界壁で区切って複数戸に分割したり、防火用の界壁で区切って防火性能をよくしたユニット建物に関する。
【０００２】
【従来の技術】
ユニット建物は、運搬可能な一定の大きさの箱形の、且つ、内部、外部の仕上げられた建物ユニットを、予め、工場で製造し、この建物ユニットの複数個を施工現場に運搬し、施工現場で組み立てて建物となすもので、現場施工期間が短く、且つ、寸法精度の良い標準化された建物となる特徴があることから広く採用されている。
【０００３】
このユニット建物に使用する建物ユニットとしては、特公昭６２−６２２２４号公報に記載あるように、方形の四隅に配置された４本の鋼製の柱と、４本の柱の下端部を辺に沿って連結する４本の鋼製の床梁と、４本の柱の上端部を辺に沿って連結する４本の鋼製の天井梁とからなる骨格を有し、この骨格の相対する床梁に複数本の鋼製の床小梁を差し渡し、この床小梁の上に複数本の木製の床根太を架け渡して取り付け、この床根太の上に床材を取り付けて床を形成し、相対する天井梁に木製の天井野縁を差し渡し、この天井野縁の下面に天井材を取り付けて天井を形成し、壁を設ける場所には、天井梁と床梁との間に間柱を取り付け、この間柱の屋外側に外壁を、又、屋内側に内壁を取り付け、この内壁と外壁との間に断熱材を取り付けて壁を形成したものが多く使用されている。
そして、ユニット建物は、この建物ユニットを水平方向に隣接させて据え付け、この上に建物ユニットを据え付けるというように、水平方向と垂直方向に組み立てたものである。
【０００４】
このユニット建物等の建物では、下階の床から上階を経て小屋裏まで貫通した界壁を設けて複数戸に分割したり、防火性能の優れた界壁を設けて防火性能を向上させることが多い。
特に複数戸に分割したマンション等では、住戸と住戸との間に下階の床から上階を経て小屋裏まで貫通した防火性能のよい界壁を設けることが必要である。
しかし、上記建物ユニットでは、床材や天井梁を取り付け易いように、木製の床根太や天井野縁を使用しているので、この木製の床根太や木製の天井野縁を通って界壁の反対側に燃え拡がり防火性能が低下するという問題がある。
かかる問題を解決する手段としては、特許第２６０７７１４号に記載されているように、この床根太や天井野縁の界壁と交差する部分に界壁金具を取り付けたり、交差する位置の床根太に金属隔壁を設けることが知られている。
【０００５】
【発明が解決しようとする課題】
しかし、上記のようにして界壁金具や金属隔壁を設けていると天井梁部分では問題がないが、床部分では次に示す問題が発生する。
即ち、界壁と交差する床根太に金属隔壁を設けると、床根太がこの金属隔壁によって分割されるために、この連結部分の機械的強度が弱くなり、床の上に重い物を載せたり、重い物を落下させたりして力が加わると、この連結部分で床根太が折れ易いという問題がある。
【０００６】
かかることを防止するために、従来では、この連結部の両側に分割された床根太の端部を支持する補強床小梁を取り付けていたが、コストが増加するという問題がある。
そこで、本発明の目的は、補強床小梁を取り付けなくとも界壁と交差する部分の床根太の機械的強度が低下しない安価なユニット建物を提供することである。
【０００７】
【課題を解決するための手段】
本発明は上記目的を達成するためになしたものであって、請求項１記載の発明は、複数本の金属製の床小梁の上に複数本の木製の床根太が架け渡されて取り付けられた床構造を備えた建物ユニットが水平方向、垂直方向に組み立てられ、下階の建物ユニットの床から上階の建物ユニットを経て小屋裏まで貫通した界壁によって内部が区切られたユニット建物であって、前記界壁は上階の建物ユニットの床小梁位置で床と交差し、この界壁と交差する部分の床根太が切り取られ、この床根太の切り取られた端部が床小梁の上に設けられた金属板の上に載せられ、界壁は床と交差する位置で、床上界壁と床下界壁とに分割され、床上界壁は前記金属板の上面に立設され、床下界壁はこの金属板の下面に、床小梁を内部に挿入した状態にして、取り付けられているものである。
【０００８】
請求項２記載の発明は、複数本の金属製の床小梁の上に複数本の木製の床根太が架け渡されて取り付けられた床構造を備えた建物ユニットが水平方向、垂直方向に組み立てられ、下階の建物ユニットの床から上階の建物ユニットを経て小屋裏まで貫通した界壁によって内部が区切られたユニット建物であって、前記界壁は上階の建物ユニットの床小梁位置で床と交差し、この界壁と交差する部分の床根太が切り取られ、この床根太の切り取られた端部が床小梁の上に設けられた金属板の上に載せられ、界壁は床と交差する位置で床上界壁と床下界壁とに分割され、床上界壁は切り取られた両側の床根太の端部上面に架け渡された上側金属板の上面に立設され、床下界壁は前記金属板の下面に、床小梁を内部に挿入した状態にして、取り付けられているものである。
【０００９】
（作用）
請求項１記載の発明では、界壁は上階の建物ユニットの床小梁位置で床と交差し、この界壁と交差する部分の床根太が切り取られ、界壁は床と交差する位置で、床上界壁と床下界壁とに分割され、この床上界壁は金属板の上面に立設され、床下界壁はこの金属板の下面に、床小梁を内部に挿入した状態にして、取り付けられているから、界壁と床と交差する部分では、床上界壁と床下界壁との間に金属板と金属製の床小梁があるだけで木製の床根太は切り取られてない。即ち、界壁の一方から他方に貫通した燃え易い床根太等の木製品がなく、この請求項１記載の建物ユニットは防火性能のよい界壁で区切られている。
【００１０】
また、この床根太の切り取られた端部は床小梁の上に設けられた金属板の上に載せられているから、この床根太の切り取られた端部は床小梁の上に設けられた金属板に支持され床根太の機械的強度は低下しない。
【００１１】
請求項２記載の発明では、界壁は上階の建物ユニットの床小梁位置で床と交差し、この界壁と交差する部分の床根太が切り取られ、この界壁は床と交差する位置で床上界壁と床下界壁とに分割され、床上界壁は切り取られた両側の床根太の端部上面に架け渡された上側金属板の上面に立設され、床下界壁は床小梁の上に設けられた金属板の下面に、床小梁を内部に挿入した状態にして、取り付けられているから、界壁と床と交差する部分では、金属板、上側金属板および金属製の床小梁があるだけで木製の床根太は切り取られてない。即ち、界壁の一方から他方に貫通した燃え易い床根太等の木製品がなく、この請求項２記載のユニット建物は防火性能のよい界壁で区切られている。
【００１２】
また、この床根太の切り取られた端部は床小梁の上に設けられた金属板の上に載せられているから、この床根太の切り取られた端部は床小梁の上に設けられた金属板に支持され床根太の機械的強度は低下しない。
【００１３】
【発明の実施の形態】
次に、本発明の実施の形態を実施例で示す。
（実施例１）
図１〜図８は本発明のユニット建物の一実施例を示すもので、図１はユニット建物を示す斜視説明図、図２は図１のＡ−Ａ線における一部省略の断面図、図３は汎用建物ユニットの構成を示す一部切欠斜視図、図４は１階の界壁付き建物ユニットの構成を示す一部切欠斜視図、図５（イ）は２階の界壁付き建物ユニットの構成を示す一部切欠斜視図、（ロ）は（イ）のＢ部分の側面図、（ハ）は（イ）の床上界壁パネルを取り除いた状態の平面図、図６は床上界壁パネルの一部切欠斜視図、図７は床下界壁パネルの一部切欠斜視図、図８は天井上界壁パネルの一部切欠切欠図である。
【００１４】
図１〜図８において、Ｕはユニット建物であり、このユニット建物Ｕは、基礎９の上のほぼ中央に３個の１階の界壁付き建物ユニット２が据え付けられ、この両側に６個の汎用建物ユニット１が据え付けられ、１階の界壁付き建物ユニット２の上に２階の界壁付き建物ユニット３が据え付けられ、１階の汎用建物ユニット１の上に２階の汎用建物ユニット１が据え付けられ、この２階の界壁付き建物ユニットの上と汎用建物ユニット１の上とに折版屋根材４が取り付けられたものである。
【００１５】
汎用建物ユニット１は、図３に示すように、方形の四隅に配置された４本の四角筒状の鋼製の柱１１と、４本の柱の下端部を辺に沿って連結する４本の断面コ字形の鋼製の床梁１２と、４本の柱の上端部を辺に沿って連結する４本の断面コ字形の鋼製の天井梁１３とからなる骨格を有し、この骨格の相対する床梁１２に複数本の四角筒状の鋼製の床小梁１４を差し渡し、この床小梁１４の上に複数本の木製の床根太１５を架け渡して取り付け、この床根太１５の上に床材１６を取り付けて床を形成し、相対する天井梁１３に木製の天井野縁１７を差し渡し、この天井野縁１７の下面に天井材１８を取り付け、上側に厚み１２ｍｍの石膏ボードの耐火板７を取り付けて天井を形成し、壁を設ける場所には、天井梁１３と床梁１２との間に間柱１９を取り付け、この間柱１９の屋外側に外壁を、又、屋内側に内壁を取り付け、この内壁と外壁との間に断熱材を取り付けて壁を形成したものである。
【００１６】
１階の界壁付き建物ユニット２は、図４に示すように、上記汎用建物ユニット１に１階床上界壁パネル５１と１階天井上界壁パネル５２からなる１階界壁５が取り付けられたものである。
即ち、１階床上界壁パネル５１は、厚みがほぼ１４８ｍｍ、高さがほぼ２３９７ｍｍ（１階の界壁付き建物ユニット２の床から天井までの高さとほぼ等しい長さ）のパネルであり、図２、図６に示すように、枠体５１１に厚みほぼ１２ｍｍの石膏ボード５１２が取り付けられ、この上に厚みほぼ１２ｍｍの石膏ボード５１４が取り付けられたものが断熱板５１９を挟んで一体となったものある。
【００１７】
又、１階天井上界壁パネル５２は、厚みがほぼ１４８ｍｍ、高さがほぼ２２８ｍｍ（天井から天井梁１３の上面までの長さとほぼ等しい長さ）のパネルであり、図２、図８に示すように、枠体５２１に厚みほぼ１２ｍｍの石膏ボード５２２が取り付けられ、この上に厚みほぼ４ｍｍの石綿セメント珪酸カルシウム板５２３が取り付けられ、更に、その上に厚みほぼ１２ｍｍの石膏ボード５２４が取り付けられたものが断熱板５２９を挟んで一体にされ、下端面内部に厚みほぼ１２ｍｍの合板からなる連結板５２５が取り付けられたものである。
【００１８】
そして、１階界壁付き建物ユニット２は、図４に示すように、方形の四隅に配置された４本の四角筒状の鋼製の柱２１と、４本の柱の下端部を辺に沿って連結する４本の断面コ字形の鋼製の床梁２２と、４本の柱の上端部を辺に沿って連結する４本の断面コ字形の鋼製の天井梁２３とからなる骨格を有し、この骨格の相対する床梁２２に複数本の四角筒状の鋼製の床小梁２４を差し渡し、この床小梁２４の上に複数本の木製の床根太２５を架け渡して取り付け、この床根太２５の上に床材２６を取り付けて床を形成し、相対する天井梁２３に木製の天井野縁２７を差し渡し、この天井野縁２７の下面に天井材２８を取り付け、上側に厚み１２ｍｍの石膏ボードの耐火板７を取り付けて天井を形成し、壁を設ける場所には、天井梁２３と床梁２２との間に間柱２９を取り付け、この間柱２９の屋外側に外壁を、又、屋内側に内壁を取り付け、この内壁と外壁との間に断熱材を取り付けて壁を形成したものであり、ほぼ中央の床小梁２４の上方の床材２６の上に１階床上界壁パネル５１が立設され、この上に天井上界壁パネル５２が立設されたものである。
【００１９】
従って、図２に示すように、この１階床上界壁パネル５１は、ほぼ中央の天井野縁２７の間を通過し、この床上界壁パネル５１の上に天井上界壁パネル５２が連結されて、１階界壁５が形成されていて、この界壁５が通過する場所には天井材２８および耐火板７は取り付けられてない。
なお、１階界壁５と天井材２８とのコーナー部には回り縁８が取り付けられて、このコーナー部の隙間を覆っている。
【００２０】
２階の界壁付き建物ユニット３は、図５（イ）に示すように、上記汎用建物ユニット１に２階床上界壁パネル６１、２階天井上界壁パネル６２および２階の床下界壁パネル６３とからなる２階界壁６が取り付けられたものである。この２階の界壁付き建物ユニット３を１階の界壁付き建物ユニット２と比較すると、図５（ロ）、（ハ）に示すように、床下に床下界壁壁パネル６３が床小梁３４を中に入れた状態に取り付けられていること、床小梁３４の上に鋼板の金属板８５が溶接されて取り付けられていること、床上界壁パネル６２は床材の上でなく、金属板８５の上に立設されている（従って、この床上界壁パネル６２は１階の床上界壁パネル６１と比較すると高さが床根太と床材の厚みだけ高くなっている）ことが異なる。
【００２１】
詳細に説明すると、２階床上界壁パネル６１は、厚みがほぼ１４８ｍｍ、高さがほぼ２４６３ｍｍ（２階の界壁付き建物ユニット３の床から天井までの高さとほぼ等しい長さ（ほぼ２３９７ｍｍ）＋床材３６の厚み（ほぼ１５ｍｍ）＋床根太３５の厚み（ほぼ５１ｍｍ））のパネルであり、枠体６１１に厚みほぼ１２ｍｍの石膏ボード６１２が取り付けられ、この上に厚みほぼ１２ｍｍの石膏ボード６１４が取り付けられたものが断熱板６１９を挟んで一体となったものである。
【００２２】
又、２階床下界壁パネル６３は、厚みがほぼ１４８ｍｍ、高さがほぼ１２９ｍｍ（２階の界壁付き建物ユニット３の床梁３２の下面から床根太３５の下までの高さとほぼ等しい長さ）のパネルであり、図７に示すように、枠材６３１の両側に厚みほぼ１５ｍｍの合板６３６が取り付けられ、この合板６３６の上に厚みほぼ１２ｍｍの石膏ボード６３２が取り付けられ、この上に厚みほぼ４ｍｍの石綿セメント珪酸カルシウム板６３３が取り付けられ、更に、その上に厚みほぼ１２ｍｍの石膏ボード６３４が取り付けられたものである。そして、上部には床根太３５を挿入するだけの空間６３７が形成されている。
【００２３】
又、２階天井上界壁パネル６２は、１階天井上界壁パネル５２とほぼ同じ構造であるので説明を省略する。
【００２４】
そして、２階の界壁付き建物ユニット３は、図５（イ）に示すように、方形の四隅に配置された４本の四角筒状の鋼製の柱３１と、４本の柱の下端部を辺に沿って連結する４本の断面コ字形の鋼製の床梁３２と、４本の柱の上端部を辺に沿って連結する４本の断面コ字形の鋼製の天井梁３３とからなる骨格を有し、この骨格の相対する床梁３２に複数本の四角筒状の鋼製の床小梁３４を差し渡し、この床小梁３４の上に複数本の木製の床根太３５を架け渡して取り付け、この床根太３５の上に床材３６を取り付けて床を形成し、相対する天井梁３３に木製の天井野縁３７を差し渡し、この天井野縁３７の下面に天井材３８を取り付け、上面に厚み１２ｍｍの石膏ボードの耐火板７を取り付けて天井を形成し、壁を設ける場所には、天井梁３３と床梁３２との間に間柱３９を取り付け、この間柱３９の屋外側に外壁を、又、屋内側に内壁を取り付け、この内壁と外壁との間に断熱材を取り付けて壁を形成したものであり、ほぼ中央の床小梁２４の下方に２階の床下界壁パネル６３が取り付けられ、この床小梁３４の上に金属板８５が取り付けられ、この金属板８５の上に２階床上界壁パネル６１が立設され、この上に天井上界壁パネル６２が立設されている。
【００２５】
従って、図２に示すように、２階床下界壁パネル６３は床小梁３４を中に挿入した状態に取り付けられ、この上に２階床上界壁パネル６１が取り付けられ、この２階床上界壁パネル６１は、ほぼ中央の天井野縁３７の間を通過し、この床上界壁パネル６１の上に天井上界壁パネル６２が連結されて、２階界壁６が形成されていて、この界壁６が通過する場所には天井材３８および耐火板７は取り付けられてない。
【００２６】
なお、１階界壁５と天井材２８とのコーナー部には回り縁８が取り付けられて、このコーナー部の隙間を覆っている。
この界壁６の取付構造を更に詳細に説明する。
界壁６は２階の建物ユニット３の床小梁３４位置で床と交差している。
そして、図５（ロ）、（ハ）に示すように、この界壁６と交差する部分の床根太３５が切り取られ、この床根太３５の切り取られた端部３５１が床小梁３４の上に取り付けられた金属板８５の上に載せられている。
【００２７】
従って、界壁６と床と交差する部分では、床上界壁パネル６１と床下界壁パネル６３との間に金属板８５と金属製の床小梁３４があるだけで木製の床根太３５は切り取られてない。即ち、一方から他方に貫通した燃え易い床根太３５等の木製品がなく、防火性能のよい界壁６となっている。
また、この床根太３５の切り取られた端部は床小梁３４の上に取り付けられた金属板８５の上に載せられているから、この床根太３５の切り取られた端部は床小梁３４の上に取り付けられた金属板８５に支持され床根太３５の機械的強度は低下しない。
【００２８】
次に、この建物ユニットの仮屋根構造の施工方法および作用について説明する。
工場で、汎用建物ユニット１、１階の界壁付き建物ユニット２、２階の界壁付き建物ユニット３、折版屋根材４等を製造する。
この汎用建物ユニット１、１階の界壁付き建物ユニット２、２階の界壁付き建物ユニット３、折版屋根材４等を施工現場に運搬し、施工現場では、予め設けられている基礎９の上のほぼ中央に３個の１階の界壁付き建物ユニット２を据え付け、この両側に６個の汎用建物ユニット１を据え付けて１階を構成し、この１階の界壁付き建物ユニット２の上に２階の界壁付き建物ユニット３を据え付け、１階の汎用建物ユニット１の上に汎用建物ユニット１を据え付けて２階を構成し、この２階の界壁付き建物ユニット３の上と汎用建物ユニット１の上とに折版屋根材４を取り付け、種々な仕上げを行うとユニット建物Ｕが完成する。
【００２９】
この１階の界壁付き建物ユニット２の上に２階の界壁付き建物ユニット３を据え付ける際には、図２に示すように、１階の天井上界壁パネル５２の上端面に石綿保温板９４の両側に亜鉛鉄板９５が取り付けられたユニット間スペーサー９３を挟んで据え付けて両者を連結する。又、２階の界壁付き建物ユニット３の上に折版屋根材４を取り付けるときには、２階の天井上界壁パネル６２の上端面にコ字形に成形された石綿保温板９７の両側に亜鉛鉄板９８が取り付けられた小屋裏スペーサースペーサー９６を挟んで取り付ける。
【００３０】
このようにすると、１階の床材２６から小屋裏まで貫通した界壁５、６が形成され、この界壁５、６の中には床根太３５等の木製品がなく、従って、このユニット建物Ｕは一方から他方に燃え拡がることがない防火性能のよい建物である。
【００３１】
（実施例２）
図９および図１０は本発明の他の実施例を示すもので、（イ）は２階の界壁付き建物ユニットの床と界壁とが交差している場所の側面図、（ロ）は（イ）の床上界壁パネルを取り除いた状態の平面図、図１０は界壁金具を示す斜視図である。
【００３２】
この図９および図１０に示す実施例２を図１〜図８に示す実施例１と比較すると、２階の界壁付き建物ユニット３ａの床上界壁パネル６１ａと床下界壁パネル６３ａとの連結構造が異なる。
従って、この連結構造について説明する。
【００３３】
界壁６ａは２階の建物ユニット３ａの床小梁３４ａ位置で床と交差し、この界壁６ａと交差する部分の床根太３５ａが切り取られていること、界壁６ａは床と交差する位置で床上界壁パネル６１ａと床下界壁パネル６３ａとに分割されていることは実施例１とほぼ同じであるが、この切り取られた部分に界壁金具８３ａが取り付けられていることが異なる。
この界壁金具８３ａは、図１０に示すように、床根太３５ａの切断端面とほぼ同じ形状の相対する一対の支持板８４ａ、８４ａと、この支持板８４ａの下端に取付けられた金属板８５ａと上側金属板８６ａとからなる。
【００３４】
この界壁金具８３ａを、上側金属板８６ａと金属板８５ａとの間に切断された床根太３５ａの端部を入れて、床根太３５ａに取り付けると、床根太８５ａの下面に金属板８５ａが差し渡され、上側金属板８６ａが床根太３５ａの上面に架け渡され状態に取り付けられる。そして、この界壁金具８３ａが、図９に示すように、床小梁３４ａの上に取り付けられている。このような構造になっているので、床小梁３４ａの上に金属板８５ａが設けられ、この金属板８５ａの上に切り取られた床根太３５ａの端部が載り、この床根太３５ａの上面に上側金属板８６ａが架け渡された構造となっている。
【００３５】
そして、図９に示すように、床上界壁パネル６１ａは切り取られた両側の床根太３５ａの端部上面に架け渡された上側金属板８６ａの上面に立設され、床下界壁パネル６３ａは金属板８５ａの下面に、床小梁３４ａを内部に挿入した状態にして、取り付けられている。
従って、この床上界壁パネル６２ａを実施例１の床上界壁パネルと比較すると床上界壁パネル６２ａの高さが床根太３５ａと床材３６ａの厚みだけ低くなっている。
その他の構造は実施例１とほぼ同じであるので、説明を省略する。
【００３６】
このような構造になっているので、界壁６ａと床と交差する部分では、金属板８５ａ、上側金属板８６ａおよび金属製の床小梁３４ａがあるだけで、木製の床根太３５ａは切り取られている。即ち、界壁６ａの一方から他方に貫通した燃え易い床根太３５ａ等の木製品がなく、実施例２のユニット建物は防火性能のよい界壁６ａで区切られている。
また、この床根太３５ａの切り取られた端部は床小梁３４ａの上に取り付けられた金属板７５ａの上に載せられているから、この床根太３５ａの切り取られた端部は床小梁３４ａの上に取り付けられた金属板７５ａに支持され床根太３５ａの機械的強度は低下しない。
【００３７】
【発明の効果】
以上の説明で判るように、請求項１記載の発明は、界壁が上階の建物ユニットの床小梁に沿った位置で床と交差し、この界壁と交差する部分の床根太が切り取られ、界壁は床と交差する位置で、床上界壁と床下界壁とに分割され、この床上界壁は金属板の上面に立設され、床下界壁はこの金属板の下面に、床小梁を内部に挿入した状態にして、取り付けられているから、界壁の一方から他方に貫通した燃え易い床根太等の木製品がなく、請求項１記載のユニット建物は防火性能のよい界壁で区切られている。
また、この床根太の切り取られた端部は床小梁の上に設けられた金属板の上に載せられているから、床根太の機械的強度は低下しない。
【００３８】
請求項２記載の発明は、界壁が上階の建物ユニットの床小梁に沿った位置で床と交差し、この界壁と交差する部分の床根太が切り取られ、この界壁は床と交差する位置で床上界壁と床下界壁とに分割され、床上界壁は切り取られた両側の床根太の端部上面に架け渡された上側金属板の上面に立設され、床下界壁は床小梁の上に設けられた金属板の下面に、床小梁を内部に挿入した状態にして、取り付けられているから、界壁の一方から他方に貫通した燃え易い床根太等の木製品がなく、請求項２記載のユニット建物は防火性能のよい界壁で区切られている。
また、この床根太の切り取られた端部は床小梁の上に設けられた金属板の上に載せられているから、床根太の機械的強度は低下しない。
【図面の簡単な説明】
【図１】本発明のユニット建物の一実施例を示すもので、ユニット建物を示す斜視説明図である。
【図２】図１のＡ−Ａ線における一部省略の断面図である。
【図３】汎用建物ユニットの構造を示す一部切欠斜視図である。
【図４】１階の界壁付き建物ユニットの構造を示す一部切欠斜視図である。
【図５】（イ）は２階の界壁付き建物ユニットの構造を示す一部切欠斜視図、（ロ）は（イ）のＢ部分の側面図、（ハ）は（イ）の床上界壁パネルを取り除いた状態の平面図である。
【図６】床上界壁パネルの一部切欠斜視図である。
【図７】床下界壁パネルの一部切欠斜視図である。
【図８】天井上界壁パネルの一部切欠切欠図である。
【図９】本発明の他の実施例を示すもので、（イ）は２階の界壁付き建物ユニットの床と界壁とが交差している場所の側面図、（ロ）は（イ）の床上界壁パネルを取り除いた状態の平面図である。
【図１０】界壁金具を示す斜視図である。
【符号の説明】
１汎用建物ユニット
２１階の界壁付き建物ユニット
３、３ａ２階の界壁付き建物ユニット
３４、３４ａ床小梁
３５、３５ａ床根太
５１階の界壁
５１床上界壁（床上界壁パネル）
５２天井上界壁（天井上界壁パネル）
６、６ａ２階の界壁
６１、６１ａ床上界壁（床上界壁パネル）
６２天井上界壁パネル
６３、６３ａ床下界壁（床下界壁パネル）
８５、８５ａ金属板
８６ａ下側金属板[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a unit building that is divided into a plurality of houses by dividing the interior by a boundary wall or divided by a boundary wall for fire prevention to improve fire prevention performance.
[0002]
[Prior art]
The unit building is a box-shaped, internal and external finished building unit of a certain size that can be transported, manufactured in advance at the factory, and several of these building units are transported to the construction site for construction. It is widely used because it is built on site to form a building, has a short on-site construction period, and a standardized building with good dimensional accuracy.
[0003]
As the building unit used for this unit building, as described in Japanese Examined Patent Publication No. 62-62224, there are four steel columns arranged at the four corners of the square and the lower ends of the four columns on the sides. A skeleton composed of four steel floor beams connected along the four sides and four steel ceiling beams connecting the upper ends of the four columns along the sides, and the opposite floors of the skeleton Pass a plurality of steel floor beams to the beam, install multiple wooden floor joists on the floor beam, attach flooring on this floor joists to form the floor, A wooden ceiling nose is passed to the opposite ceiling beam, a ceiling material is attached to the lower surface of this ceiling nose to form a ceiling, and in the place where the wall is provided, a stud is attached between the ceiling beam and the floor beam, Install an outer wall on the outdoor side of this stud and an inner wall on the indoor side, and install a heat insulating material between the inner wall and the outer wall. That form the walls are often used.
The unit building is assembled in the horizontal direction and the vertical direction such that the building unit is installed adjacent to the horizontal direction and the building unit is installed thereon.
[0004]
In buildings such as this unit building, provide a boundary wall that penetrates from the lower floor to the back of the hut and divides it into multiple units, or provides a boundary wall with excellent fire resistance to improve fire resistance. There are many.
In particular, in apartments divided into a plurality of units, it is necessary to provide a barrier wall with good fire prevention performance that penetrates from the lower floor to the back of the hut between the dwelling units.
However, in the above building unit, wooden floor joists and ceiling joists are used to make it easier to attach flooring and ceiling beams. There is a problem that the fire spreads on the opposite side and spreads out.
As a means for solving such a problem, as described in Japanese Patent No. 2607714, a field wall fitting is attached to the floor joist or a part of the ceiling field border intersecting with the floor joist or the floor joist at the intersecting position. It is known to provide a metal barrier.
[0005]
[Problems to be solved by the invention]
However, when the field wall fitting and the metal partition are provided as described above, there is no problem in the ceiling beam portion, but the following problem occurs in the floor portion.
That is, when a metal partition is provided on the floor joist that intersects the boundary wall, the floor joist is divided by the metal partition, so that the mechanical strength of this connecting portion is weakened, and a heavy object is placed on the floor, When force is applied by dropping a heavy object, there is a problem that the floor joists are easily broken at this connecting portion.
[0006]
In order to prevent this, conventionally, a reinforcing floor beam that supports the ends of the floor joists divided on both sides of the connecting portion is attached. However, there is a problem that the cost increases.
Accordingly, an object of the present invention is to provide an inexpensive unit building in which the mechanical strength of a floor joist at a portion intersecting with a boundary wall is not lowered without attaching a reinforcing floor beam.
[0007]
[Means for Solving the Problems]
The present invention has been made in order to achieve the above object, and the invention according to claim 1 is characterized in that a plurality of wooden floor joists are installed on a plurality of metal floor beams. The building unit with the floor structure is assembled in the horizontal and vertical directions, and the interior is separated by a boundary wall that penetrates from the floor of the building unit on the lower floor to the back of the hut through the building unit on the upper floor The boundary wall intersects the floor at the floor beam position of the building unit on the upper floor, the floor joist of the portion intersecting with the boundary wall is cut, and the cut end of the floor joist is the floor beam It is placed on a metal plate provided above, the boundary wall is divided into an upper floor boundary wall and a lower floor boundary wall at a position intersecting the floor, and the upper floor wall is erected on the upper surface of the metal plate, The underfloor wall is attached to the lower surface of this metal plate with the floor beam inserted inside. It is what is kicked.
[0008]
According to a second aspect of the present invention, a building unit having a floor structure in which a plurality of wooden floor joists are installed on a plurality of metal floor beams is assembled in a horizontal direction and a vertical direction. A unit building whose interior is divided by a wall that penetrates from the floor of the building unit on the lower floor to the back of the hut through the building unit on the upper floor, where the wall is the position of the floor beam of the building unit on the upper floor The floor joist of the part that intersects this boundary wall is cut off, and the cut end of this floor joist is placed on the metal plate provided on the floor beam, At the position intersecting the floor, it is divided into an upper floor wall and an underfloor wall, and the upper floor wall is erected on the upper surface of the upper metal plate spanned on the upper ends of the floor joists on both sides of the cut floor. The wall is attached to the lower surface of the metal plate with the floor beam inserted inside. And those are.
[0009]
(Function)
In the first aspect of the invention, the boundary wall intersects the floor at the floor beam position of the upper floor building unit, and the floor joists of the portion intersecting with the boundary wall are cut off, and the boundary wall is at the position intersecting the floor. The upper floor wall is divided into the upper floor wall and the lower floor wall. The upper floor wall is erected on the upper surface of the metal plate, and the lower floor wall is in a state where the floor beam is inserted inside the lower surface of the metal plate. Since it is attached, the wooden floor joists are not cut off at the portion where the field wall and the floor intersect, but only the metal plate and the metal floor beam are between the upper floor wall and the lower floor wall. That is, there are no wood products such as floor joists that penetrate from one side of the boundary wall to the other, and the building unit according to claim 1 is separated by a boundary wall having good fire prevention performance.
[0010]
In addition, since the cut end of the floor joist is placed on a metal plate provided on the floor beam, the cut end of the floor joist is provided on the floor beam. The mechanical strength of the floor joists supported by the metal plate is not reduced.
[0011]
In the invention according to claim 2, the boundary wall intersects the floor at the floor beam position of the building unit on the upper floor, the floor joist of the portion intersecting with the boundary wall is cut, and the boundary wall intersects with the floor. Is divided into an upper floor wall and an underfloor wall, and the upper floor wall is erected on the upper surface of the upper metal plate spanned on the upper end of the floor joists on both sides, and the lower floor wall is a floor beam Since the floor beam is inserted into the lower surface of the metal plate provided on the top, the metal plate, the upper metal plate, and the metal The wooden floor joists are not cut, just the floor beams. That is, there is no flammable floor joist or the like which penetrates from one of the boundary walls to the other, and the unit building according to claim 2 is partitioned by a boundary wall having good fire prevention performance.
[0012]
In addition, since the cut end of the floor joist is placed on a metal plate provided on the floor beam, the cut end of the floor joist is provided on the floor beam. The mechanical strength of the floor joists supported by the metal plate is not reduced.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Next, the embodiments of the present invention will be described by way of examples.
Example 1
1 to 8 show an embodiment of a unit building according to the present invention, FIG. 1 is a perspective explanatory view showing the unit building, and FIG. 2 is a partially omitted sectional view taken along line AA in FIG. 3 is a partially cutaway perspective view showing the configuration of a general-purpose building unit, FIG. 4 is a partially cutaway perspective view showing the configuration of a building unit with a boundary wall on the first floor, and FIG. 5A is a building unit with a boundary wall on the second floor. (B) is a side view of part B of (b), (c) is a plan view of the floor wall panel of (a) removed, and FIG. 6 is a floor wall of the floor. FIG. 7 is a partially cutaway perspective view of the lower floor wall panel, and FIG. 8 is a partially cutaway view of the ceiling upper wall panel.
[0014]
1 to 8, U is a unit building. In this unit building U, three building units 2 with a boundary wall on the first floor are installed approximately at the center on the foundation 9, and 6 units are installed on both sides. A general-purpose building unit 1 is installed, a building unit 3 with a boundary wall on the second floor is installed on a building unit 2 with a boundary wall on the first floor, and a general-purpose building unit 1 on the second floor is installed on the general-purpose building unit 1 on the first floor. The folding roof material 4 is attached on the building unit with the boundary wall on the second floor and on the general-purpose building unit 1.
[0015]
As shown in FIG. 3, the general-purpose building unit 1 has four square cylindrical steel columns 11 arranged at four corners of a square and four lower ends of the four columns connected along the side. A steel frame 12 having a U-shaped cross section, and four steel cross beams 13 having a U-shaped cross section that connect the upper ends of four columns along the sides. A plurality of square tubular steel floor beams 14 are passed over the opposite floor beams 12, and a plurality of wooden floor joists 15 are bridged over the floor beams 14. A floor material 16 is attached to the floor, a floor is formed, a wooden ceiling edge 17 is passed to the opposing ceiling beam 13, a ceiling material 18 is attached to the lower surface of the ceiling edge 17, and a gypsum board having a thickness of 12 mm on the upper side A fireproof plate 7 is attached to form a ceiling, and a wall 1 is provided between the ceiling beam 13 and the floor beam 12. Mounting the outer wall outdoor side of the stud 19, also attached to the inner wall indoors side, and forming a wall mounting insulation between the inner and outer walls.
[0016]
As shown in FIG. 4, the building unit 2 with a first-floor boundary wall has a first-floor boundary wall 5 composed of a first-floor upper boundary wall panel 51 and a first-floor ceiling upper boundary wall panel 52 attached to the general-purpose building unit 1. It is a thing.
That is, the first-floor upper boundary wall panel 51 is a panel having a thickness of approximately 148 mm and a height of approximately 2397 mm (a length approximately equal to the height from the floor to the ceiling of the building unit 2 with the first-floor boundary wall). 2. As shown in FIG. 6, a gypsum board 512 having a thickness of approximately 12 mm is attached to the frame body 511, and a gypsum board 514 having a thickness of approximately 12 mm is attached to the frame 511, with the heat insulating plate 519 interposed therebetween. There are things.
[0017]
The first floor ceiling upper boundary wall panel 52 is a panel having a thickness of approximately 148 mm and a height of approximately 228 mm (a length approximately equal to the length from the ceiling to the upper surface of the ceiling beam 13). As shown, a gypsum board 522 having a thickness of approximately 12 mm is attached to the frame body 521, an asbestos cement calcium silicate board 523 having a thickness of approximately 4 mm is mounted thereon, and a gypsum board 524 having a thickness of approximately 12 mm is further mounted thereon. These are integrated with a heat insulating plate 529 interposed therebetween, and a connecting plate 525 made of a plywood having a thickness of approximately 12 mm is attached inside the lower end surface.
[0018]
As shown in FIG. 4, the building unit 2 with a first-floor wall has four square cylindrical steel columns 21 arranged at the four corners of the square and the lower ends of the four columns as sides. A skeleton comprising four U-shaped steel floor beams 22 connected along the four sides and four U-shaped steel ceiling beams 23 connecting the upper ends of the four columns along the sides. A plurality of square tubular steel floor beams 24 are passed over the opposite floor beams 22 of the skeleton, and a plurality of wooden floor joists 25 are bridged over the floor beams 24. Attach the floor material 26 on the floor joist 25 to form a floor, pass the wooden ceiling edge 27 to the opposing ceiling beam 23, attach the ceiling material 28 to the lower surface of the ceiling edge 27, and At the place where a ceiling is formed by attaching a fireproof plate 7 of a plaster board having a thickness of 12 mm to the wall, the ceiling beam 23 and the floor beam 2 are provided. The outer wall is attached to the outdoor side of the intermediate pillar 29, the inner wall is attached to the indoor side, and a heat insulating material is attached between the inner wall and the outer wall to form a wall. A first-floor upper boundary wall panel 51 is erected on a floor material 26 above the central floor beam 24, and a ceiling upper boundary wall panel 52 is erected thereon.
[0019]
Therefore, as shown in FIG. 2, the upper floor wall panel 51 of the first floor passes substantially between the ceiling field edges 27 at the center, and the upper ceiling wall panel 52 is connected to the upper floor wall panel 51. The first floor wall 5 is formed, and the ceiling material 28 and the refractory plate 7 are not attached to the place through which the boundary wall 5 passes.
In addition, the peripheral edge 8 is attached to the corner part of the 1st floor wall 5 and the ceiling material 28, and has covered the clearance gap between this corner part.
[0020]
As shown in FIG. 5 (a), the building unit 3 with the second-floor boundary wall has the second-floor upper-boundary wall panel 61, the second-floor ceiling upper-boundary wall panel 62, and the second-floor lower-floor boundary wall as shown in FIG. A second-floor boundary wall 6 comprising a panel 63 is attached. When this building unit 3 with a boundary wall on the second floor is compared with the building unit 2 with a boundary wall on the first floor, as shown in FIGS. 34, the steel plate 85 is welded and attached to the floor beam 34, and the floor upper wall panel 62 is not on the flooring but on the metal. It differs in that it is erected on the board 85 (therefore, this upper floor wall panel 62 is higher in height than the floor joist and floor material in comparison with the floor upper wall panel 61 on the first floor). .
[0021]
Specifically, the upper floor panel 61 on the second floor has a thickness of about 148 mm and a height of about 2463 mm (a length approximately equal to the height from the floor to the ceiling of the building unit 3 with the second floor of the wall 3 (about 2397 mm)). + A flooring 36 thickness (approximately 15 mm) + floor joist 35 thickness (approximately 51 mm)), and a gypsum board 612 having a thickness of approximately 12 mm is attached to the frame body 611, and a gypsum board having a thickness of approximately 12 mm thereon. The one to which 614 is attached is integrated with the heat insulating plate 619 interposed therebetween.
[0022]
The second floor lower boundary wall panel 63 has a thickness of approximately 148 mm and a height of approximately 129 mm (a length approximately equal to the height from the lower surface of the floor beam 32 of the building unit 3 with the boundary wall on the second floor to the bottom of the floor joist 35). As shown in FIG. 7, a plywood 636 having a thickness of approximately 15 mm is attached to both sides of the frame member 631, and a gypsum board 632 having a thickness of approximately 12 mm is mounted on the plywood 636. An asbestos-cement calcium silicate plate 633 having a thickness of about 4 mm is attached, and a gypsum board 634 having a thickness of about 12 mm is further mounted thereon. A space 637 for inserting the floor joist 35 is formed in the upper part.
[0023]
The second-floor ceiling upper wall panel 62 has substantially the same structure as the first-floor ceiling upper wall panel 52, and a description thereof will be omitted.
[0024]
As shown in FIG. 5 (a), the building unit 3 with a boundary wall on the second floor has four square cylindrical steel columns 31 arranged at the four corners of the square and the lower ends of the four columns. Steel floor beams 32 with U-shaped cross sections connecting the sections along the sides, and four steel beams with U-shaped cross sections connecting the upper ends of the four columns along the sides. A plurality of square tubular steel floor beams 34 are passed to the opposite floor beams 32 of the framework, and a plurality of wooden floor joists 35 are placed on the floor beams 34. A floor material 36 is attached on the floor joist 35 to form a floor, a wooden ceiling edge 37 is passed to the opposing ceiling beam 33, and a ceiling material 38 is attached to the lower surface of the ceiling edge 37. A ceiling plate is formed by attaching a fireproof plate 7 of gypsum board having a thickness of 12 mm on the upper surface. A wall 39 is formed by attaching a stud 39 to the floor beam 32, attaching an outer wall to the outdoor side of the stud 39 and an inner wall to the indoor side, and attaching a heat insulating material between the inner wall and the outer wall. The lower floor floor wall panel 63 of the second floor is attached to the lower part of the floor beam 24 at the center, and a metal plate 85 is attached to the floor beam 34, and the upper floor of the second floor is placed on the metal plate 85. A wall panel 61 is erected, and an upper ceiling wall panel 62 is erected thereon.
[0025]
Therefore, as shown in FIG. 2, the second floor lower boundary wall panel 63 is attached with the floor beam 34 inserted therein, and the second floor upper boundary wall panel 61 is attached thereon, and this second floor upper boundary wall panel 61 is attached. The wall panel 61 passes between almost the center ceiling edge 37, and the ceiling upper wall panel 62 is connected to the floor upper wall panel 61 to form the second floor wall 6, The ceiling material 38 and the fireproof plate 7 are not attached to the place where the boundary wall 6 passes.
[0026]
In addition, the peripheral edge 8 is attached to the corner part of the 1st floor wall 5 and the ceiling material 28, and has covered the clearance gap between this corner part.
The mounting structure of the boundary wall 6 will be described in more detail.
The boundary wall 6 intersects the floor at the position of the floor beam 34 of the building unit 3 on the second floor.
Then, as shown in FIGS. 5 (b) and 5 (c), the floor joist 35 at the portion intersecting with the boundary wall 6 is cut out, and the cut end 351 of the floor joist 35 is above the floor beam 34. Is mounted on a metal plate 85 attached to the.
[0027]
Therefore, at the portion where the boundary wall 6 and the floor intersect, the wooden floor joist 35 is cut off only by the metal plate 85 and the metal floor beam 34 between the upper floor wall panel 61 and the lower floor wall panel 63. It has not been done. That is, there is no wood product such as the easily burnable floor joist 35 penetrating from one side to the other, and the boundary wall 6 has good fireproof performance.
Further, since the cut end portion of the floor joist 35 is placed on the metal plate 85 mounted on the floor beam 34, the cut end portion of the floor joist 35 is placed on the floor beam 34. The mechanical strength of the floor joist 35 supported by the metal plate 85 attached to the top is not lowered.
[0028]
Next, the construction method and operation of the temporary roof structure of this building unit will be described.
The factory manufactures a general-purpose building unit 1, a building unit with a boundary wall on the first floor, a building unit with a boundary wall on the second floor, a folded roof material 4 and the like.
This general-purpose building unit 1, the first floor building unit 2 with the boundary wall 2, the second floor building unit 3 with the boundary wall, the folding roof material 4, etc. are transported to the construction site. Three building units 2 with a first-floor wall are installed in the center of the building, and six general-purpose building units 1 are installed on both sides to form the first floor. The building unit 3 with the boundary wall on the second floor is installed on the top, the general building unit 1 is installed on the general building unit 1 on the first floor, and the second floor is configured. When the folded roof material 4 is attached on the general-purpose building unit 1 and various finishing is performed, the unit building U is completed.
[0029]
When installing the building unit 3 with the second-floor wall on the first-floor building unit 2 with the wall on the first floor, as shown in FIG. The both sides of the board 94 are installed with the inter-unit spacer 93 having the galvanized iron board 95 attached thereto, and both are connected. When the folded roofing material 4 is mounted on the building unit 3 with the boundary wall on the second floor, zinc is placed on both sides of the asbestos heat insulating plate 97 formed in a U shape on the upper end surface of the ceiling upper boundary wall panel 62 on the second floor. Attach the spacer behind the hut spacer spacer 96 to which the iron plate 98 is attached.
[0030]
In this way, the boundary walls 5 and 6 penetrating from the floor material 26 on the first floor to the back of the hut are formed, and there are no wood products such as floor joists 35 in the boundary walls 5 and 6. U is a building with good fire prevention performance that does not spread from one to the other.
[0031]
(Example 2)
FIGS. 9 and 10 show another embodiment of the present invention, in which (a) is a side view of a place where the floor of a building unit with a boundary wall on the second floor and the boundary wall intersect, and (b) is FIG. 10 is a perspective view showing a field wall fitting in a state in which the floor top wall panel (a) is removed.
[0032]
9 and 10 is compared with the first embodiment shown in FIGS. 1 to 8, the connection between the upper floor wall panel 61a and the lower floor wall panel 63a of the building unit 3a with the second floor floor wall. The structure is different.
Therefore, this connection structure will be described.
[0033]
The boundary wall 6a intersects the floor at the position of the floor beam 34a of the building unit 3a on the second floor, and the floor joist 35a of the portion intersecting with the boundary wall 6a is cut off, and the position of the boundary wall 6a intersects the floor. However, the division into the upper floor wall panel 61a and the lower floor wall panel 63a is substantially the same as that of the first embodiment, except that the field wall fitting 83a is attached to the cut portion.
As shown in FIG. 10, the boundary wall fitting 83a includes a pair of opposing support plates 84a and 84a having substantially the same shape as the cut end surface of the floor joist 35a, and a metal plate 85a attached to the lower end of the support plate 84a. It consists of an upper metal plate 86a.
[0034]
When the edge of the floor joist 35a cut between the upper metal plate 86a and the metal plate 85a is inserted into the wall metal fitting 83a and attached to the floor joist 35a, the metal plate 85a is inserted into the lower surface of the floor joist 85a. The upper metal plate 86a is passed over the upper surface of the floor joist 35a and attached in a state. The field wall fitting 83a is mounted on the floor beam 34a as shown in FIG. Since it has such a structure, the metal plate 85a is provided on the floor beam 34a, and the end of the floor joist 35a cut out on the metal plate 85a is placed on the upper surface of the floor joist 35a. The upper metal plate 86a is spanned.
[0035]
Then, as shown in FIG. 9, the upper floor wall panel 61a is erected on the upper surface of the upper metal plate 86a spanned on the upper surface of the end of the floor joist 35a on both sides, and the lower floor wall panel 63a is made of metal. It is attached to the lower surface of the plate 85a with the floor beam 34a inserted therein.
Therefore, when the floor boundary wall panel 62a is compared with the floor boundary wall panel of the first embodiment, the height of the floor boundary wall panel 62a is reduced by the thickness of the floor joists 35a and the floor material 36a.
Since other structures are substantially the same as those of the first embodiment, description thereof is omitted.
[0036]
Since it has such a structure, the wooden floor joist 35a is cut off only at the portion where the boundary wall 6a and the floor intersect with the metal plate 85a, the upper metal plate 86a, and the metal floor beam 34a. ing. That is, there is no wood product such as the flammable floor joist 35a penetrating from one side of the boundary wall 6a to the other, and the unit building of Example 2 is partitioned by the boundary wall 6a having good fire prevention performance.
Further, since the cut end portion of the floor joist 35a is placed on the metal plate 75a attached on the floor beam 34a, the cut end portion of the floor joist 35a is placed on the floor beam 34a. The mechanical strength of the floor joist 35a supported by the metal plate 75a attached to the top is not lowered.
[0037]
【The invention's effect】
As can be seen from the above description, the invention according to claim 1 is such that the boundary wall intersects the floor at a position along the floor beam of the building unit on the upper floor, and the floor joist of the portion intersecting with the boundary wall is cut off. The boundary wall is divided into an upper floor boundary wall and a lower floor boundary wall at a position intersecting with the floor. The upper floor boundary wall is erected on the upper surface of the metal plate, and the lower floor boundary wall is placed on the lower surface of the metal plate. 2. The unit building according to claim 1, which is attached with a small beam inserted therein, so that there is no wood product such as a flammable floor joist penetrating from one of the boundary walls to the other, and the unit building according to claim 1 has a good fireproof performance. It is delimited by.
Further, since the cut end portion of the floor joist is placed on a metal plate provided on the floor beam, the mechanical strength of the floor joist does not decrease.
[0038]
In the invention according to claim 2, the boundary wall intersects the floor at a position along the floor beam of the building unit on the upper floor, and the floor joist of the portion intersecting with the boundary wall is cut off. At the intersecting position, it is divided into an upper floor wall and an underfloor wall, and the upper floor wall is erected on the upper surface of the upper metal plate spanned on the upper surface of the edge of the floor joists on both sides, Since the floor beam is attached to the lower surface of the metal plate provided on the floor beam, it is attached to the bottom of the metal plate. The unit building according to claim 2 is partitioned by a boundary wall having good fire prevention performance.
Further, since the cut end portion of the floor joist is placed on a metal plate provided on the floor beam, the mechanical strength of the floor joist does not decrease.
[Brief description of the drawings]
FIG. 1 is a perspective explanatory view showing a unit building according to an embodiment of the unit building of the present invention.
FIG. 2 is a partially omitted cross-sectional view taken along the line AA in FIG.
FIG. 3 is a partially cutaway perspective view showing the structure of a general-purpose building unit.
FIG. 4 is a partially cutaway perspective view showing the structure of a building unit with a boundary wall on the first floor.
5A is a partially cutaway perspective view showing the structure of a building unit with a boundary wall on the second floor, FIG. 5B is a side view of portion B of FIG. 5A, and FIG. It is a top view of the state which removed the wall panel.
FIG. 6 is a partially cutaway perspective view of an upper floor wall panel.
FIG. 7 is a partially cutaway perspective view of a lower floor wall panel.
FIG. 8 is a partially cutaway view of the ceiling ceiling wall panel.
9A and 9B show another embodiment of the present invention, in which FIG. 9A is a side view of a place where the floor of a building unit with a boundary wall on the second floor and the boundary wall intersect, and FIG. It is a top view of the state which removed the floor boundary wall panel of ().
FIG. 10 is a perspective view showing a field wall fitting.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 General-purpose building unit 2 Building unit with a boundary wall on the 1st floor 3, 3a Building unit with a boundary wall on the 2nd floor 34, 34a Floor beam 35, 35a Floor joist 5 Floor wall on the 1st floor 51 Upper floor wall (upper floor wall panel )
52 ceiling ceiling wall (ceiling ceiling wall panel)
6, 6a 2nd floor boundary wall 61, 61a Upper floor wall (upper floor wall panel)
62 Ceiling upper wall panel 63, 63a Lower floor wall (lower floor wall panel)
85, 85a Metal plate 86a Lower metal plate

Claims

A building unit with a floor structure in which multiple wooden floor joists are installed on multiple metal floor beams is assembled in the horizontal and vertical directions. A unit building whose interior is separated by a boundary wall that penetrates from the floor through the building unit on the upper floor to the back of the hut, and the boundary wall intersects the floor at the floor beam position of the building unit on the upper floor. The floor joist of the part that intersects the wall is cut off, the cut end of this floor joist is placed on the metal plate provided on the floor beam, and the boundary wall is on the floor at the position that intersects the floor It is divided into a boundary wall and a lower floor wall, and the upper floor wall is erected on the upper surface of the metal plate, and the lower floor wall is attached to the lower surface of the metal plate with the floor beam inserted inside. A unit building characterized by

A building unit with a floor structure in which multiple wooden floor joists are installed on multiple metal floor beams is assembled in the horizontal and vertical directions. A unit building whose interior is separated by a boundary wall that penetrates from the floor through the building unit on the upper floor to the back of the hut, and the boundary wall intersects the floor at the floor beam position of the building unit on the upper floor. The floor joist of the part that intersects the wall is cut, and the cut end of this floor joist is placed on the metal plate provided on the floor beam. It is divided into a wall and a lower floor wall, and the upper floor wall is erected on the upper surface of the upper metal plate spanned on the upper surface of the end of the floor joists on both sides, and the lower floor wall is placed on the lower surface of the metal plate. It is characterized in that it is installed with the floor beam inserted inside. Unit building.