JP4574835B2

JP4574835B2 - Column and beam joint structure and unit building

Info

Publication number: JP4574835B2
Application number: JP2000351508A
Authority: JP
Inventors: 直子木瀬
Original assignee: Sekisui Chemical Co Ltd
Current assignee: Sekisui Chemical Co Ltd
Priority date: 2000-04-05
Filing date: 2000-11-17
Publication date: 2010-11-04
Anticipated expiration: 2020-11-17
Also published as: JP2001348957A

Description

【０００１】
【発明の属する技術分野】
本発明はユニット建物等に用いて好適な柱と梁の接合構造に関する。
【０００２】
【従来の技術】
ユニット建物で用いる柱と梁の接合構造として、特開平1-311999号公報では、木質の柱の上端面に梁を載せて固定するに際し、柱の上端面に加工したほぞに梁の下面に加工したほぞ溝を嵌め合せ、柱の側面に取着したＬ字状の梁受金具に梁を釘打ち固定するものを開示している。
【０００３】
【発明が解決しようとする課題】
然しながら、従来技術には以下の問題点がある。
▲１▼柱と梁の間に作用する引抜き力に耐える耐引抜き強度を十分に確保できず、建物の高層化や大型化に十分対応できない。
【０００４】
▲２▼柱と梁のそれぞれにおけるほぞとほぞ溝の加工コストが高い。
【０００５】
本発明の課題は、柱と梁の接合部に、簡易な構造により、十分な耐引抜き強度を確保することにある。
【０００６】
【課題を解決するための手段】
請求項１に記載の発明は、木質の柱の上端面に梁を載せて固定する柱と梁の接合構造において、柱の上端面に備えたボルトに、梁に設けた接続金物の底部を挿通し、接続金物の内部で該ボルトにナットを締結してなり、前記柱と梁が建物の外郭を構成するに際し、柱の梁が載る上端面の外面側に該柱の下端部から該梁の上端部にまで及ぶ柱ふかし部を設けるとともに、梁の外面側に柱の柱ふかし部と面一をなして該柱ふかし部に突合わされる梁ふかし部を設けてなるようにしたものである。
【０００７】
請求項２に記載の発明は、請求項１に記載の発明において更に、前記梁が木質からなり、前記接続金物に設けた取付板を該木質の梁の側面に取着してなるようにしたものである。
【０００８】
請求項３に記載の発明は、請求項１に記載の発明において更に、前記梁が鉄骨からなり、前記接続金物を該鉄骨の梁の下面に溶接してなるようにしたものである。
【００１０】
請求項４に記載の発明は、請求項１〜３のいずれかに記載の発明において更に、前記柱ふかし部が柱本体に柱ふかし材を付加して構成されるようにしたものである。
【００１１】
請求項５に記載の発明は、請求項１〜３のいずれかに記載の発明において更に、前記梁ふかし部が梁本体に梁ふかし材を付加して構成されるようにしたものである。
【００１２】
請求項６に記載の発明は、請求項１〜５のいずれかに記載の発明において更に、前記柱ふかし部と梁ふかし部の突合せ部の目地に防水シール材を装填してなるようにしたものである。
【００１３】
請求項７に記載の発明は、請求項１〜６のいずれかに記載の発明において更に、前記梁ふかし部の表面に予め外壁面仕上げを施してなるようにしたものである。
【００１４】
請求項８に記載の発明は、相隣る建物ユニットを並置し、両建物ユニットの相対する柱の上端面に梁を載せて架け渡し、それらの柱間に開口部を形成するに際し、それらの柱と梁の接合構造として、請求項１〜７のいずれかに記載のものを採用してなるユニット建物である。
【００１５】
【作用】
請求項１の発明によれば下記(1)〜(3)の作用がある。
(1)柱と梁をボルト／ナットで締結したから、十分な耐引抜き強度を確保できる。尚、梁に設けた接続金物に柱の側のボルトを挿通するものであるから、梁にボルト挿通孔を加工するものに比して、梁の強度を損なう虞がない。
【００１６】
(2)柱にボルトを設け、梁に接続金物を設けるだけの簡易な構造であり、加工コストを低くできる。
(3)建物の外郭を構成する柱と梁の接合部で、相じゃくり型をなす柱ふかし部と梁ふかし部を突合せたから、建物の外側から見た柱と梁の突合せ部の目地が直線状（Ｉ型）になり、この突合せ部の目地を単純で小さなものにし、外観性を向上できるし、防水ラインも単純化できる。
【００１７】
請求項２の発明によれば下記(4)の作用がある。
(4)木質梁の側面に接続金物に設けた取付板を取着することにより、木質梁に簡易且つ確実に接続金物を設けることができる。
【００１８】
請求項３の発明によれば下記(5)の作用がある。
(5)鉄骨梁に接続金物を溶接することにより、鉄骨梁に簡易且つ確実に接続金物を設けることができる。
【００２０】
請求項４の発明によれば下記(6)の作用がある。
(6)柱ふかし部を柱本体に柱ふかし材を付加して構成したから、この柱本体として建物の内部に設けられる柱と同一断面材のものを用いることができる。
【００２１】
請求項５の発明によれば下記(7)の作用がある。
(7)梁ふかし部を梁本体に梁ふかし材を付加して構成したから、この梁本体として建物の内部に設けられる梁と同一断面材のものを用いることができる上、この梁本体に建物の内部の梁に設けた接続金物と同一のものを用いることができ、部品の共通化を図ることができる。
【００２２】
請求項６の発明によれば下記(8)の作用がある。
(8)柱ふかし部と梁ふかし部の突合せ部の目地に防水シール材を装填することにより、単純な直線状防水シール材により柱と梁の接合部の防水を図ることができる。
【００２３】
請求項７の発明によれば下記(9)の作用がある。
(9)梁ふかし部の表面に予め外壁面仕上げを施してあるから、梁を柱に接合した後、柱と梁の接合部の防水施工のみ行なえば足りる。従って、現地据付後の施工工数を低減できる。
【００２４】
請求項８の発明によれば下記(10)の作用がある。
(10)相隣る建物ユニットに渡る広い開口部を形成する両建物ユニットの柱と、それら柱間に架け渡される梁の接合部において、上述(1)〜(9)を実現できる。
【００２５】
【発明の実施の形態】
図１は本発明が適用されるユニット建物を示す斜視図、図２は第１参考形態の柱と梁の接合構造を示す斜視図、図３は接続金物を示す斜視図、図４は接続金物を示し、（Ａ）は正面図、（Ｂ）は側面図、（Ｃ）は底面図、図５は第２参考形態の柱と梁の接合構造を示す斜視図、図６は鉄骨梁と接続金物を示す斜視図、図７は第１実施形態のユニット建物を示す斜視図、図８は第１実施形態の柱と梁の接合構造を建物の内部から示し、（Ａ）は梁導入過程を示す斜視図、（Ｂ）梁固定過程を示す斜視図、図９は第１実施形態の柱と梁の接合構造を建物の外部から示す斜視図、図１０は図９のＸ−Ｘ線に沿う断面図、図１１は第１実施形態の柱と梁の接合構造を模式的に示し、（Ａ）は梁導入過程を建物の内部から示す斜視図、（Ｂ）は梁固定過程を建物の外部から示す斜視図、図１２は第１実施形態の建物の外観を示す正面図、図１３は第１実施形態の比較例としての柱と梁の接合構造を建物の外部から模式的に示す斜視図、図１４は第１実施形態の比較例としての建物の外観を示す正面図、図１５は第２実施形態の柱と梁の接合構造を建物の内部から示し、（Ａ）は梁導入過程を示す斜視図、（Ｂ）は梁固定過程を示す斜視図、図１６は第２実施形態の柱と梁の接合構造を建物の外部から示す斜視図である。
【００２６】
ユニット建物１０は、工場生産された複数の建物ユニットを建築現場に輸送して左右上下に接合したものであり、その一部を示す図１においては、下階建物ユニット１１、１２を隣接設置し、下階建物ユニット１１の上に上階建物ユニット１３を搭載している。
【００２７】
下階建物ユニット１１は、方形の床１１Ａの隣り合う２つの外縁部に壁１１Ｂ、１１Ｃを立設し、壁１１Ｂに相対する外縁部に壁１１Ｃに交差する小壁１１Ｄを備える。また、下階建物ユニット１２は、方形の床１２Ａの隣り合う２つの外縁部に壁１２Ｂ、１２Ｃを立設している。床１１Ａ、１２Ａは床枠組に床面材を貼り設けたパネルからなる。壁１１Ｂ、１１Ｃ、１１Ｄ、１２Ｂ、１２Ｃは壁枠組に壁面材を貼り付けたパネルからなる。
【００２８】
そして、ユニット建物１０にあっては、建築現場で、下階建物ユニット１１、１２をそれらの壁を立設していない外縁部を内側にして並置し、下階建物ユニット１１の小壁１１Ｄと下階建物ユニット１２の壁１２Ｃに梁１４を架け渡し、この梁１４及び壁１１Ｂ〜１１Ｄにより上階建物ユニット１３を支持するように組立てられる。これにより、下階に壁のない大きな居室空間を形成できる。
【００２９】
このとき、梁１４が架け渡される下階建物ユニット１１の小壁１１Ｄと下階建物ユニット１２の壁１２Ｃは、それら小壁１１Ｄ、壁１２Ｃの壁枠組の端部に角柱からなる木質柱１５、１６がボルト等で固定されている。そして、梁１４はそれら柱１５、１６の上端面に載置されて固定される。以下、柱１５、１６と梁１４の接合構造について説明する。
【００３０】
（第１参考形態）（図２〜図４）
図２は、ユニット建物１０において、梁１４に接合される２個の下階建物ユニット１１、１２を１組のユニット群とするとき、２組のユニット群を対称配置した状態を示している。
【００３１】
下階建物ユニット１１の小壁１１Ｄが備える柱１５は柱頭金物２１を釘打ち固定され、柱頭金物２１の上面にボルト２２を備える。
【００３２】
下階建物ユニット１２の壁１２Ｃが備える柱１６も、柱１５と同様に柱頭金物（不図示）を固定され、ボルト（不図示）を備える。
【００３３】
梁１４は木質からなり、両端部に四角筒状の接続金物２３、２３が設けられる。接続金物２３は、図３、図４に示す如く、底部にボルト挿通孔２４が設けられるとともに、上面の両側に２枚の取付板２５を溶接され、梁１４の端部を２枚の取付板２５の間に差し込み、この取付板２５を梁１４の側面に釘打ち固定されて梁１４に固定される。
【００３４】
そして、ユニット建物１０にあっては、下階建物ユニット１１の小壁１１Ｄの柱１５に備えたボルト２２に、梁１４の一端側の接続金物２３の底部のボルト挿通孔２４を挿通し、接続金物２３の内部で該ボルト２２にナット（不図示）を締結する。また、下階建物ユニット１２の壁１２Ｃの柱１６に備えたボルトに、梁１４の他端側の接続金物２３の底部のボルト挿通孔２４を挿通し、接続金物２３の内部で該ボルトにナットを締結する。
【００３５】
尚、下階建物ユニット１１の小壁１１Ｄの壁枠組を構成している上枠材１７の上面と、梁１４の一端部の上面にはジョイントプレート２６が釘打ち固定され、小壁１１Ｄに対する梁１４の接合強度を向上させている。ジョイントプレート２６が上枠材１７の上面と梁１４の上面に段差を生じさせないように、上枠材１７と梁１４にはジョイントプレート２６のためのザグリ１７Ａ、１４Ａが設けられている。
【００３６】
また、前述した２組のユニット群の境界部で、相隣る梁１４のそれぞれの中間部には上階受金物３１が釘打ち固定され、上階受金物３１の上面に１本の接合ボルト３２、２本のガイドピン３３を備える。そして、相隣る上階受金物３１、３１にはジョイントプレート３４が取着され、ジョイントプレート３４に設けた各孔を上階受金物３１の接合ボルト３２、ガイドピン３３に挿通している。ジョイントプレート３４が梁１４の中間部の上面に段差を生じさせないように、梁１４には上階受金物３１、ジョイントプレート３４のためのザグリ１４Ｂが設けられている。これにより、２組のユニット群を構成する各２個の下階建物ユニット１１、１２のそれぞれに搭載される上階建物ユニット１３を、梁１４の中間部で支持するに際し、上階建物ユニット１３に設けた柱脚金物（不図示）を上階受金物３１のガイドピン３３でガイドし、接合ボルト３２で固定化できる。
【００３７】
従って、本参考形態によれば、以下の作用がある。
(1)柱１５と梁１４をボルト／ナットで締結したから、十分な耐引抜き強度を確保できる。尚、梁１４に設けた接続金物２３に柱１５の側のボルト２２を挿通するものであるから、梁１４にボルト挿通孔２４を加工するものに比して、梁１４の強度を損なう虞れがない。
【００３８】
(2)柱１５にボルト２２を設け、梁１４に接続金物２３を設けるだけの簡易な構造であり、加工コストを低くできる。
【００３９】
(3)木質梁１４の側面に接続金物２３に設けた取付板２５を取着することにより、木質梁１４に簡易且つ確実に接続金物２３を設けることができる。
【００４０】
（第２参考形態）（図５、図６）
図５は、ユニット建物１０において、梁１４に接合される２個の下階建物ユニット１１、１２を１組のユニット群とするとき、２組のユニット群を対称配置した状態を示している。
【００４１】
下階建物ユニット１１の小壁１１Ｄが備える柱１５は柱頭金物２１を釘打ち固定され、柱頭金物２１の上面にボルト２２を備えている。
【００４２】
下階建物ユニット１２の壁１２Ｃが備える柱１６も、柱１５と同様に柱頭金物（不図示）を固定され、ボルト（不図示）を備える。
【００４３】
梁１４は鉄骨からなり、溝形鋼４１の両端部で柱１５、１６の接合部に各２枚のスチフナ４２Ａ、４２Ｂを、溝形鋼４１の中間部で上階建物ユニット１３の接合部に２枚のスチフナ４３Ａ、４３Ｂを溶接してある。そして、梁１４は、図６に示す如く、溝形鋼４１の両端部の柱１５、１６の接合部の下面に四角枠状の接続金物４２、４２を溶接してある。接続金物４２は、底部にボルト挿通孔４３Ａを備える。尚、梁１４は、溝形鋼４１の上面の全長に渡る上木桟４４を釘打ち固定され、溝形鋼４１の下面の接続金物４２、４２に挟まれる範囲に下木桟４５を釘打ち固定されている。上木桟４４は上階建物ユニット１３の支持面を構成し、下木桟４５は内層材の下地になる。
【００４４】
そして、ユニット建物１０にあっては、下階建物ユニット１１の小壁１１Ｄの柱１５に備えたボルト２２に、梁１４の一端側の接続金物４２の底部のボルト挿通孔４３を挿通し、接続金物４２の内部で該ボルト２２にナット（不図示）を締結する。また、下階建物ユニット１２の壁１２Ｃの柱１６に備えたボルトに、梁１４の他端側の接続金物４２の底部のボルト挿通孔４３を挿通し、接続金物４２の内部で該ボルトにナットを締結する。
【００４５】
尚、下階建物ユニット１１の小壁１１Ｄの壁枠組を構成している上枠材１７の上面と、梁１４の上木桟４４の上面にはジョイントプレート４６が釘打ち固定され、小壁１１Ｄに対する梁１４の接合強度を向上させている。ジョイントプレート４６が上枠材１７の上面と上木桟４４の上面に段差を生じさせないように、上枠材１７と上木桟４４にはジョイントプレート４６のためのザグリ１７Ａ、４４Ａが設けられている。
【００４６】
また、前述した２組のユニット群の境界部で、相隣る梁１４のそれぞれの中間部において、溝形鋼４１の上面には１本の接合ボルト４７、２本のガイドピン４８が設けられ、接合ボルト４７、ガイドピン４８は上木桟４４を貫通して設けられている。そして、相隣る溝形鋼４１、４１にはジョイントプレート４９が取着され、ジョイントプレート４９に設けた各孔を溝形鋼４１の接合ボルト４７、ガイドピン４８に挿通している。ジョイントプレート４９が梁１４の中間部で上木桟４４の上面に段差を生じさせないように、上木桟４４にはジョイントプレート４９のためのザグリ４４Ｂが設けられている。これにより、２組のユニット群を構成する各２個の下階建物ユニット１１、１２のそれぞれに搭載される上階建物ユニット１３を、梁１４の中間部で支持するに際し、上階建物ユニット１３に設けた柱脚金物（不図示）を溝形鋼４１のガイドピン４８でガイドし、接合ボルト４７で固定化できる。
【００４７】
従って、本参考形態によれば、以下の作用がある。
(1)柱１５と梁１４をボルト／ナットで締結したから、十分な耐引抜き強度を確保できる。尚、梁１４に設けた接続金物４２に柱１５の側のボルト２２を挿通するものであるから、梁１４にボルト挿通孔４３を加工するものに比して、梁１４の強度を損なう虞れがない。
【００４８】
(2)柱１５にボルト２２を設け、梁１４に接続金物４２を設けるだけの簡易な構造であり、加工コストを低くできる。
【００４９】
(3)鉄骨梁１４に接続金物４２を溶接することにより、鉄骨梁１４に簡易且つ確実に接続金物４２を設けることができる。
【００５０】
（第１実施形態）（図７〜図１４）
第１実施形態のユニット建物５０は、図７に示す如く、その下階の一部を図７に示す如く構成するものであり、工場生産された下階建物ユニット５１、５２を建築現場にて並置し、ユニット建物５０の外郭を構成する下階建物ユニット５１の小壁５１Ａと下階建物ユニット５２の小壁５２Ａを同一ライン上にて離隔配置し、それら小壁５１Ａ、５２Ａの壁枠組の端部に角柱からなる木質柱５３、５４をボルト等で固定している。そして、ユニット建物５０は、両建物ユニット５１、５２の相対する柱５３、５４の上端面に梁５５を載せて架け渡し、それらの柱５３、５４の間に広く連続する開口部５６を形成する。以下、柱５３、５４と梁５５の接合構造について説明する。
【００５１】
尚、小壁５１Ａの柱５３（小壁５２Ａの柱５４も同じ）は、梁５５が載る上端面の外面側に、柱５３の下端部から梁５５の上端面にまで及ぶ柱ふかし部を設けており、この柱ふかし部を柱本体５３Ａ（５４Ａ）に柱ふかし材５３Ｂ（５４Ｂ）を付加して構成している。小壁５１Ａは内壁面材５７Ａと、外壁面材５７Ｂを備え、外壁面材５７Ｂを柱ふかし材５３Ｂの外面を覆う範囲まで延在している。
【００５２】
また、梁５５は、外面側に柱５３、５４の柱ふかし材５３Ｂ、５４Ｂと面一をなして該柱ふかし材５３Ｂ、５４Ｂに突合わされる梁ふかし部を設けており、この梁ふかし部を梁本体５５Ａに梁ふかし材５５Ｂを付加して構成している。梁ふかし材５５Ｂは、縦枠材と横枠材を枠組したパネルからなる。梁５５は、梁本体５５Ａに内壁面材５８Ａを備え、梁ふかし材５５Ｂに外壁面材５８Ｂを備える。
【００５３】
しかるに、下階建物ユニット５１の小壁５１Ａが備える柱５３の柱本体５３Ａは柱頭金物６１を釘打ち固定され、柱頭金物６１の上面にボルト６２を備える。
【００５４】
下階建物ユニット５２の小壁５２Ａが備える柱５４も、柱５３と同様に柱頭金物（不図示）を固定され、ボルト（不図示）を備える。
【００５５】
梁５５の梁本体５５Ａは木質からなり、両端部に四角筒状の接続金物６３、６３が設けられる。接続金物６３は、図８に示す如く、底部にボルト挿通孔６４が設けられるとともに、上面の両側に２枚の取付板６５を溶接され、梁本体５５Ａの端部を２枚の取付板６５の間に差し込み、この取付板６５を梁本体５５Ａの側面に釘打ち固定されて梁５５に固定される。
【００５６】
そして、ユニット建物５０にあっては、図８〜図１０に示す如く、下階建物ユニット５１の小壁５１Ａの柱５３の柱本体５３Ａに備えたボルト６２に、梁５５の梁本体５５Ａの一端側の接続金物６３の底部のボルト挿通孔６４を挿通し、接続金物６３の内部で該ボルト６２にナット６２Ａを締結する。また、下階建物ユニット５２の小壁５２Ａの柱５４の柱本体５４Ａに備えたボルトに、梁５５の梁本体５５Ａの他端側の接続金物６３の底部のボルト挿通孔６４を挿通し、接続金物６３の内部で該ボルトにナットを締結する。
【００５７】
尚、下階建物ユニット５１、５２の小壁５１Ａ、５２Ａの壁枠組を構成している上枠材５１Ｂ、５２Ｂの上面と、梁５５の梁本体５５Ａの両端部の上面にはジョイントプレート６６が釘打ち固定され、小壁５１Ａ、５２Ａに対する梁５５の接合強度を向上させている。ジョイントプレート６６が上枠材５１Ｂ、５２Ｂの上面と梁本体５５Ａの上面に段差を生じさせないように、上枠材５１Ｂ、５２Ｂと梁本体５５Ａにはジョイントプレート６６のためのザグリ５１Ｃ、５５Ｃが設けられている。
【００５８】
また、梁５５の梁本体５５Ａの中間部には上階受金物７１が釘打ち固定され、上階受金物７１の上面に１本の接合ボルト７２、２本のガイドピン７３を備える。上階受金物７１が梁本体５５Ａの中間部の上面に段差を生じさせないように、梁本体５５Ａには上階受金物７１のためのザグリ５５Ｃが設けられている。これにより、２個の下階建物ユニット５１、５２のそれぞれに搭載される上階建物ユニットを、梁５５の中間部で支持するに際し、上階建物ユニットに設けた柱脚金物（不図示）を上階受金物７１のガイドピン７３でガイドし、接合ボルト７２で固定化できる。
【００５９】
このようにして、両建物ユニット５１、５２の相対する柱５３、５４の柱本体５３Ａ、５４Ａの上端面に梁５５を載せて架け渡したユニット建物５０にあっては、柱５３、５４と梁５５の接合部の外面でそれらの柱ふかし材５３Ｂ、５４Ｂと梁ふかし材５５Ｂを相じゃくり型をなして突合せる状態で、両柱５３、５４の間に開口部５６を形成し、この開口部５６に窓サッシ５６Ａが嵌合される（図１２）。
【００６０】
そして、ユニット建物５０にあっては、図１１、図１２に示す如く、柱５３、５４と梁５５の接合部の外面で相じゃくりをなす柱ふかし材５３Ｂ、５４Ｂと梁ふかし材５５Ｂを突合せたから、外側からみた柱５３、５４と梁５５の突合せ部の目地７５が直線状になり、この目地７５に防水シール材７６が装填される（図１０）。尚、柱５３、５４と梁５５の突合せ部で柱ふかし材５３Ｂ、５４Ｂや梁ふかし材５５Ｂを伴わない、第１参考形態で前述した如くに建物の内部で用いた柱１５、１６と梁１４の接合構造を採用したときには、柱５３、５４と梁５５の突合せ部の目地７５Ａが図１３、図１４に示す如くのＬ字状になってしまう。
【００６１】
また、ユニット建物５０にあっては、柱５３、５４の柱本体５３Ａ、５４Ａとして第１参考形態で前述した如くに建物の内部で用いられる柱１５、１６と同一寸法材のものを共通使用できる。梁５５の梁本体５５Ａも第１参考形態の梁１４と同一寸法材のものを共通使用できる。これによって、柱頭金物６１、接続金物６３を第１参考形態の柱頭金物２１、接続金物２３と共通使用できる。
【００６２】
従って、本実施形態によれば、以下の作用がある。
(1)柱５３、５４と梁５５をボルト／ナットで締結したから、十分な耐引抜き強度を確保できる。尚、梁５５に設けた接続金物６３に柱５３、５４の側のボルト６２を挿通するものであるから、梁５５にボルト挿通孔を加工するものに比して、梁５５の強度を損なう虞がない。
【００６３】
(2)柱５３、５４にボルト６２を設け、梁５５に接続金物６３を設けるだけの簡易な構造であり、加工コストを低くできる。
【００６４】
(3)木質梁５５の側面に接続金物６３に設けた取付板６５を取着することにより、木質梁５５に簡易且つ確実に接続金物６３を設けることができる。
【００６５】
(4)ユニット建物５０の外郭を構成する柱５３、５４と梁５５の接合部で、相じゃくり型をなす柱ふかし部と梁ふかし部を突合せたから、ユニット建物５０の外側から見た柱５３、５４と梁５５の突合せ部の目地７５が直線状（Ｉ型）になり、この突合せ部の目地７５を単純で小さなものにし、外観性を向上できるし、防水ラインも単純化できる。
【００６６】
(5)柱ふかし部を柱本体５３Ａ、５４Ａに柱ふかし材５３Ｂ、５４Ｂを付加して構成したから、この柱本体５３Ａ、５４Ａとして建物の内部に設けられる柱１５、１６と同一断面材のものを用いることができる。
【００６７】
(6)梁ふかし部を梁本体５５Ａに梁ふかし材５５Ｂを付加して構成したから、この梁本体５５Ａとしてユニット建物５０の内部に設けられる梁５５と同一断面材のものを用いることができる上、この梁本体５５Ａに建物の内部の梁１４に設けられる接続金物２１と同一のものを用いることができ、部品の共通化を図ることができる。
【００６８】
(7)柱ふかし部と梁ふかし部の突合せ部の目地７５に防水シール材７６を装填することにより、単純な直線状防水シール材７６により柱５３、５４と梁５５の接合部の防水を図ることができる。
【００６９】
(8)相隣る建物ユニット５１、５２に渡る広い開口部５６を形成する両建物ユニット５１、５２の柱５３、５４と、それら柱５３、５４間に架け渡される梁５５の接合部において、上述(1)〜(7)を実現できる。
【００７０】
（第２実施形態）（図１５、図１６）
第２実施形態は、第１実施形態のユニット建物５０において、梁５５に設けた梁ふかし材５５Ｂの表面の外壁面材５８Ｂにその工場生産段階で予め塗装等の外壁面仕上げ８０を施したことにある。
【００７１】
本実施形態によれば、両建物ユニット５１、５２を建築現場に据付け、梁５５を柱５３、５４に接合した後、柱５３、５４と梁５５の接合部の防水施工のみ行なえば足りる。従って、現地据付け具の施工工数を低減できる。
【００７２】
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、本発明で用いる接続金物は必ずしも四角筒状をなすものに限らず、箱形状、Ｕ字型状等の他の形態からなるものであっても良い。
【００７３】
また、本発明で柱と梁に用いる柱ふかし部、梁ふかし部は、柱本体、梁本体を切削加工してそれら柱、梁に設けるものでも良い。
【００７４】
また、本発明はユニット建物に限らず、広く一般の建物に適用できる。
【００７５】
【発明の効果】
以上のように本発明によれば、柱と梁の接合部に、簡易な構造により、十分な耐引抜き強度を確保することができる。
【図面の簡単な説明】
【図１】図１は本発明が適用されるユニット建物を示す斜視図である。
【図２】図２は第１参考形態の柱と梁の接合構造を示す斜視図である。
【図３】図３は接続金物を示す斜視図である。
【図４】図４は接続金物を示し、（Ａ）は正面図、（Ｂ）は側面図、（Ｃ）は底面図である。
【図５】図５は第２参考形態の柱と梁の接合構造を示す斜視図である。
【図６】図６は鉄骨梁と接続金物を示す斜視図である。
【図７】図７は第１実施形態のユニット建物を示す斜視図である。
【図８】図８は第１実施形態の柱と梁の接合構造を建物の内部から示し、（Ａ）は梁導入過程を示す斜視図、（Ｂ）梁固定過程を示す斜視図である。
【図９】図９は第１実施形態の柱と梁の接合構造を建物の外部から示す斜視図である。
【図１０】図１０は図９のＸ−Ｘ線に沿う断面図である。
【図１１】図１１は第１実施形態の柱と梁の接合構造を模式的に示し、（Ａ）は梁導入過程を建物の内部から示す斜視図、（Ｂ）は梁固定過程を建物の外部から示す斜視図である。
【図１２】図１２は第１実施形態の建物の外観を示す正面図である。
【図１３】図１３は第１実施形態の比較例としての柱と梁の接合構造を建物の外部から模式的に示す斜視図である。
【図１４】図１４は第１実施形態の比較例としての建物の外観を示す正面図である。
【図１５】図１５は第２実施形態の柱と梁の接合構造を建物の内部から示し、（Ａ）は梁導入過程を示す斜視図、（Ｂ）は梁固定過程を示す斜視図である。
【図１６】図１６は第２実施形態の柱と梁の接合構造を建物の外部から示す斜視図である。
【符号の説明】
１４梁
１５柱
２２ボルト
２３、４２接続金物
２５取付板
４１溝形鋼
５０ユニット建物
５１、５２建物ユニット
５３、５４柱
５３Ａ、５４Ａ柱本体
５３Ｂ、５４Ｂ柱ふかし材
５５梁
５５Ａ梁本体
５５Ｂ梁ふかし材
５６開口部
６２ボルト
６２Ａナット
６３接続金物
６５取付板
７５目地
７６防水シール材
８０外壁面仕上げ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a column / beam joint structure suitable for use in a unit building or the like.
[0002]
[Prior art]
As a joint structure of columns and beams used in a unit building, Japanese Patent Application Laid-Open No. 1-311999 describes that when a beam is placed on and fixed to the upper end surface of a wooden column, the lower surface of the beam is processed into a tenon processed on the upper end surface of the column. The tenon groove is fitted and the beam is nail-fixed to an L-shaped beam bracket attached to the side surface of the column.
[0003]
[Problems to be solved by the invention]
However, the prior art has the following problems.
(1) It is not possible to sufficiently secure the pull-out strength that can withstand the pull-out force acting between the column and the beam, and it is not possible to sufficiently cope with the increase in the height and size of the building.
[0004]
(2) The processing cost of the tenon and tenon groove in each of the pillar and beam is high.
[0005]
An object of the present invention is to secure a sufficient pull-out strength at a junction between a column and a beam with a simple structure.
[0006]
[Means for Solving the Problems]
 According to the first aspect of the present invention, in a joined structure of a column and a beam in which a beam is placed and fixed on the upper end surface of a wooden column, a bottom portion of a connection hardware provided on the beam is inserted into a bolt provided on the upper end surface of the column. And fasten the nut to the bolt inside the connection hardware.When the pillar and the beam constitute the outer shell of the building, a column wiping portion extending from the lower end portion of the column to the upper end portion of the beam is provided on the outer surface side of the upper end surface on which the column beam rests, and the outer surface of the beam On the side of the column, there is a beam column that is flush with the column column.It was made to become.
[0007]
According to a second aspect of the present invention, in the first aspect of the present invention, the beam is made of wood, and a mounting plate provided on the connection hardware is attached to a side surface of the wooden beam. Is.
[0008]
According to a third aspect of the present invention, in the first aspect of the present invention, the beam is made of a steel frame, and the connection hardware is welded to the lower surface of the beam of the steel frame.
[0010]
 Claim4The invention described in claimAny one of 1-3Further, in the invention described in item 1, the column wiping portion is configured by adding a column wiping material to the column main body.
[0011]
 Claim5The invention described in claimAny one of 1-3Further, in the invention described in item 1, the beam wiping portion is configured by adding a beam wiping material to the beam main body.
[0012]
 Claim6The invention described in claim1~5In the invention described in any one of the above, a waterproof sealing material is further loaded on the joint of the butted portion of the column wiping portion and the beam wiping portion.
[0013]
 Claim7The invention described in claim1~6Further, in the invention described in any one of the above, an outer wall surface finish is applied in advance to the surface of the beam softening portion.
[0014]
 Claim8In the invention described in (2), when adjacent building units are juxtaposed, a beam is placed on the upper end surface of the opposite pillars of both building units, and an opening is formed between the pillars. As a joining structure,7It is a unit building which adopts the thing in any one of.
[0015]
[Action]
 According to the invention of claim 1, the following (1)~ (3)There is an effect of.
 (1) Since the column and beam are fastened with bolts / nuts, sufficient pull-out strength can be secured. In addition, since the bolt on the column side is inserted into the connection hardware provided on the beam, there is no possibility of damaging the strength of the beam as compared with the case where the bolt insertion hole is processed in the beam.
[0016]
 (2) A simple structure in which bolts are provided on the pillars and connection hardware is provided on the beams, and the processing cost can be reduced.
 (3) At the joint between the pillar and the beam that make up the building's outer wall, the joints of the pillar-shaped column and the beam-blown portion that form a cross-over shape are abutted. (I type), the joint of the butt portion is simple and small, the appearance can be improved, and the waterproof line can be simplified.
[0017]
 According to the invention of claim 2,(Four)There is an effect of.
 (Four)By attaching the attachment plate provided on the connection hardware to the side surface of the wooden beam, the connection hardware can be easily and reliably provided on the wooden beam.
[0018]
 According to the invention of claim 3,(Five)There is an effect of.
 (Five)By welding the connection hardware to the steel beam, the connection hardware can be easily and reliably provided on the steel beam.
[0020]
 Claim4According to the present invention, the following effect (6) is obtained.
 (6) Since the column wiping portion is configured by adding a column wiping material to the column main body, the column main body can be made of the same cross-sectional material as the column provided inside the building.
[0021]
 Claim5According to the present invention, the following effect (7) is obtained.
 (7) Since the beam filler is constructed by adding a beam filler to the beam body, the beam body can be made of the same cross-sectional material as the beam provided inside the building. It is possible to use the same connection hardware provided on the beam inside the, and to share parts.
[0022]
 Claim6According to this invention, the following effect (8) is obtained.
 (8) By mounting the waterproof seal material on the joints between the column warp and the beam warp, it is possible to waterproof the joint between the column and the beam with a simple linear waterproof seal.
[0023]
 Claim7According to the invention, the following effect (9) is obtained.
 (9) Since the outer wall surface has been pre-finished on the surface of the beam shining part, it is only necessary to perform the waterproof construction of the joint between the column and the beam after joining the beam to the column. Therefore, it is possible to reduce the number of construction steps after the installation on site.
[0024]
 Claim8According to the present invention, the following effect (10) is obtained.
 (10) The above-mentioned (1) to (9) can be realized in the columns of both building units that form wide openings across adjacent building units and the joints of the beams spanned between the columns.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
 FIG. 1 is a perspective view showing a unit building to which the present invention is applied, and FIG.referenceFIG. 3 is a perspective view showing a connection hardware, FIG. 4 shows a connection hardware, (A) is a front view, (B) is a side view, and (C) is a bottom view. Figure 2 shows the secondreferenceFIG. 6 is a perspective view showing a steel beam and a connecting hardware, and FIG.1The perspective view which shows the unit building of embodiment, FIG.1FIG. 9 shows a column / beam joint structure of an embodiment from the inside of a building, (A) is a perspective view showing a beam introduction process, (B) a perspective view showing a beam fixing process, and FIG.1The perspective view which shows the junction structure of the pillar and beam of embodiment from the exterior of a building, FIG. 10 is sectional drawing which follows the XX line of FIG. 9, FIG.1FIG. 12 schematically shows a joint structure of a column and a beam in the embodiment, (A) is a perspective view showing a beam introduction process from the inside of the building, (B) is a perspective view showing a beam fixing process from the outside of the building, and FIG. First1The front view which shows the external appearance of the building of embodiment, FIG.1FIG. 14 is a perspective view schematically showing a joint structure of columns and beams as a comparative example of the embodiment from the outside of the building.1FIG. 15 is a front view showing the appearance of a building as a comparative example of the embodiment.2The column / beam joint structure of the embodiment is shown from the inside of the building, (A) is a perspective view showing the beam introduction process, (B) is a perspective view showing the beam fixing process, and FIG.2It is a perspective view which shows the junction structure of the pillar and beam of embodiment from the exterior of a building.
[0026]
The unit building 10 is obtained by transporting a plurality of factory-produced building units to the construction site and joining them vertically and horizontally. In FIG. 1 showing a part thereof, the lower floor building units 11 and 12 are installed adjacent to each other. The upper floor building unit 13 is mounted on the lower floor building unit 11.
[0027]
The lower-floor building unit 11 includes walls 11B and 11C that are erected on two adjacent outer edges of the square floor 11A, and a small wall 11D that intersects the wall 11C at the outer edge facing the wall 11B. Moreover, the lower-floor building unit 12 has walls 12B and 12C erected on two adjacent outer edges of a rectangular floor 12A. The floors 11 A and 12 A are composed of panels in which a floor material is attached to a floor frame. The walls 11B, 11C, 11D, 12B, and 12C are made of panels in which wall materials are attached to a wall frame assembly.
[0028]
In the unit building 10, the lower floor building units 11 and 12 are juxtaposed on the construction site with the outer edge portions where the walls are not erected inward, and the small wall 11D of the lower floor building unit 11 and The beam 14 is bridged on the wall 12C of the lower-floor building unit 12, and the upper-floor building unit 13 is supported by the beam 14 and the walls 11B to 11D. Thereby, a large living room space without walls on the lower floor can be formed.
[0029]
At this time, the small wall 11D of the lower-floor building unit 11 and the wall 12C of the lower-floor building unit 12 over which the beam 14 is bridged are a wooden column 15 made of a rectangular column at the end of the wall frame of the small wall 11D and the wall 12C, 16 is fixed with a bolt or the like. The beam 14 is placed on and fixed to the upper end surfaces of the columns 15 and 16. Hereinafter, the joint structure between the columns 15 and 16 and the beam 14 will be described.
[0030]
 (FirstreferenceForm) (FIGS. 2 to 4)
 FIG. 2 shows a state in which two unit groups are symmetrically arranged in the unit building 10 when the two lower-floor building units 11 and 12 joined to the beam 14 are set as one unit group.
[0031]
The pillar 15 provided in the small wall 11 D of the lower-floor building unit 11 is fixed by nailing a pillar head hardware 21, and includes a bolt 22 on the upper surface of the pillar head hardware 21.
[0032]
The pillar 16 provided in the wall 12C of the lower-floor building unit 12 is also fixed with a head metal (not shown), and is provided with a bolt (not shown), like the pillar 15.
[0033]
The beam 14 is made of wood, and is provided with square cylindrical connection fittings 23 and 23 at both ends. As shown in FIGS. 3 and 4, the connection hardware 23 is provided with bolt insertion holes 24 at the bottom, two mounting plates 25 are welded to both sides of the upper surface, and the ends of the beams 14 are connected to the two mounting plates. The mounting plate 25 is nail-fixed to the side surface of the beam 14 and fixed to the beam 14.
[0034]
In the unit building 10, the bolt 22 provided on the pillar 15 of the small wall 11 D of the lower building unit 11 is inserted through the bolt insertion hole 24 at the bottom of the connection hardware 23 on one end side of the beam 14. A nut (not shown) is fastened to the bolt 22 inside the hardware 23. Further, a bolt provided in the pillar 16 of the wall 12C of the lower floor building unit 12 is inserted through the bolt insertion hole 24 at the bottom of the connection hardware 23 on the other end side of the beam 14, and the nut is attached to the bolt inside the connection hardware 23. Conclude.
[0035]
A joint plate 26 is fixed by nailing to the upper surface of the upper frame member 17 constituting the wall frame of the small wall 11D of the lower-floor building unit 11 and the upper surface of one end of the beam 14, and the beam to the small wall 11D is fixed. 14 joint strength is improved. Counterbores 17A and 14A for the joint plate 26 are provided on the upper frame member 17 and the beam 14 so that the joint plate 26 does not cause a step between the upper surface of the upper frame member 17 and the upper surface of the beam 14.
[0036]
In addition, at the boundary between the two sets of unit groups described above, the upper floor receiving object 31 is nailed and fixed to the middle part of the adjacent beams 14, and one joint bolt is attached to the upper surface of the upper floor receiving object 31. 32 and two guide pins 33 are provided. And the joint plate 34 is attached to the adjacent upper floor metal objects 31, 31, and the holes provided in the joint plate 34 are inserted through the joining bolts 32 and the guide pins 33 of the upper floor metal object 31. The beam 14 is provided with an upper floor receiving member 31 and a counterbore 14B for the joint plate 34 so that the joint plate 34 does not cause a step on the upper surface of the intermediate portion of the beam 14. As a result, when the upper floor building unit 13 mounted on each of the two lower floor building units 11, 12 constituting the two sets of unit groups is supported by the intermediate portion of the beam 14, the upper floor building unit 13 The column base metal (not shown) provided on the upper side can be guided by the guide pin 33 of the upper floor metal receiver 31 and fixed by the joining bolt 32.
[0037]
 Therefore, the bookreferenceAccording to the form, there are the following operations.
 (1) Since the column 15 and the beam 14 are fastened with bolts / nuts, sufficient pull-out strength can be secured. Since the bolts 22 on the column 15 side are inserted into the connection hardware 23 provided on the beam 14, there is a possibility that the strength of the beam 14 is impaired as compared with the case where the bolt insertion hole 24 is processed in the beam 14. There is no.
[0038]
(2) It is a simple structure in which the bolts 22 are provided on the pillars 15 and the connection hardware 23 is provided on the beams 14, and the processing cost can be reduced.
[0039]
(3) By attaching the mounting plate 25 provided on the connection hardware 23 to the side surface of the wooden beam 14, the connection hardware 23 can be easily and reliably provided on the wooden beam 14.
[0040]
 (SecondreferenceForm) (FIGS. 5 and 6)
 FIG. 5 shows a state in which two unit groups are symmetrically arranged in the unit building 10 when the two lower-floor building units 11 and 12 joined to the beam 14 are set as one unit group.
[0041]
The pillar 15 provided in the small wall 11 D of the lower floor building unit 11 is fixed by nailing a pillar head hardware 21, and a bolt 22 is provided on the upper surface of the pillar head hardware 21.
[0042]
The pillar 16 provided in the wall 12C of the lower-floor building unit 12 is also fixed with a head metal (not shown), and is provided with a bolt (not shown), like the pillar 15.
[0043]
The beam 14 is made of steel, and two stiffeners 42A and 42B are provided at the joints of the columns 15 and 16 at both ends of the grooved steel 41, and the joints of the upper floor building unit 13 at the intermediate part of the grooved steel 41. Two stiffeners 43A and 43B are welded. Then, as shown in FIG. 6, square frame-shaped connection hardware 42 and 42 are welded to the lower surface of the joint portion of the columns 15 and 16 at both ends of the channel steel 41. The connection hardware 42 includes a bolt insertion hole 43A at the bottom. The beam 14 is fixed by nailing the upper wooden crosspiece 44 over the entire length of the upper surface of the grooved steel 41, and the lower wooden crosspiece 45 is nailed within the range sandwiched between the connection hardware 42, 42 on the lower surface of the grooved steel 41. It is fixed. The upper wooden crosspiece 44 constitutes a support surface for the upper floor building unit 13, and the lower wooden crosspiece 45 serves as a base for the inner layer material.
[0044]
In the unit building 10, the bolt 22 provided on the pillar 15 of the small wall 11 D of the lower-floor building unit 11 is inserted through the bolt insertion hole 43 at the bottom of the connection hardware 42 on one end side of the beam 14. A nut (not shown) is fastened to the bolt 22 inside the hardware 42. Further, a bolt provided on the pillar 16 of the wall 12C of the lower floor building unit 12 is inserted through the bolt insertion hole 43 at the bottom of the connection fitting 42 on the other end side of the beam 14, and the nut is attached to the bolt inside the connection fitting 42. Conclude.
[0045]
A joint plate 46 is fixed to the upper surface of the upper frame member 17 constituting the wall frame of the small wall 11D of the lower-floor building unit 11 and the upper surface of the upper wooden frame 44 of the beam 14 so that the small wall 11D is fixed. The joint strength of the beam 14 with respect to is improved. Counterbore 17A and 44A for the joint plate 46 are provided on the upper frame member 17 and the upper wooden frame 44 so that the joint plate 46 does not cause a step between the upper surface of the upper frame member 17 and the upper surface of the upper wooden frame 44. Yes.
[0046]
In addition, one joining bolt 47 and two guide pins 48 are provided on the upper surface of the grooved steel 41 at each intermediate portion of the adjacent beams 14 at the boundary between the two sets of unit groups described above. The joining bolt 47 and the guide pin 48 are provided through the upper wooden crosspiece 44. A joint plate 49 is attached to the adjacent groove steels 41, 41, and each hole provided in the joint plate 49 is inserted into a joining bolt 47 and a guide pin 48 of the groove steel 41. A counterbore 44B for the joint plate 49 is provided on the upper wooden crosspiece 44 so that the joint plate 49 does not cause a step on the upper surface of the upper wooden crosspiece 44 at an intermediate portion of the beam 14. As a result, when the upper floor building unit 13 mounted on each of the two lower floor building units 11, 12 constituting the two sets of unit groups is supported by the intermediate portion of the beam 14, the upper floor building unit 13 A column base (not shown) provided on the guide bar 48 can be guided by the guide pin 48 of the channel steel 41 and fixed by the joining bolt 47.
[0047]
 Therefore, the bookreferenceAccording to the form, there are the following operations.
 (1) Since the column 15 and the beam 14 are fastened with bolts / nuts, sufficient pull-out strength can be secured. Since the bolts 22 on the column 15 side are inserted into the connection hardware 42 provided on the beam 14, there is a risk that the strength of the beam 14 is impaired as compared with the case where the bolt insertion hole 43 is processed in the beam 14. There is no.
[0048]
(2) It is a simple structure in which the bolts 22 are provided on the pillars 15 and the connection hardware 42 is provided on the beams 14, and the processing cost can be reduced.
[0049]
(3) By welding the connection hardware 42 to the steel beam 14, the connection metal 42 can be provided on the steel beam 14 simply and reliably.
[0050]
 (No.1Embodiment) (FIGS. 7 to 14)
 First1As shown in FIG. 7, the unit building 50 according to the embodiment is configured such that a part of its lower floor is configured as shown in FIG. 7, and the lower-floor building units 51 and 52 produced at the factory are juxtaposed at the construction site. The small wall 51A of the lower-floor building unit 51 and the small wall 52A of the lower-floor building unit 52 constituting the outer wall of the unit building 50 are spaced apart on the same line, and the end portions of the wall frames of the small walls 51A and 52A The wooden pillars 53 and 54 made of rectangular pillars are fixed with bolts or the like. In the unit building 50, the beam 55 is placed on the upper end surfaces of the opposing columns 53 and 54 of both the building units 51 and 52, and a wide continuous opening 56 is formed between the columns 53 and 54. . Hereinafter, the joint structure of the columns 53 and 54 and the beam 55 will be described.
[0051]
The column 53 of the small wall 51 A (the column 54 of the small wall 52 A is also the same) is provided with a column wiping portion extending from the lower end portion of the column 53 to the upper end surface of the beam 55 on the outer surface side of the upper end surface on which the beam 55 is placed. This column wiping portion is configured by adding a column wiping material 53B (54B) to the column main body 53A (54A). The small wall 51A includes an inner wall surface material 57A and an outer wall surface material 57B, and extends to the extent that the outer wall surface material 57B covers the outer surface of the column wiping material 53B.
[0052]
The beam 55 is provided with a beam wiping portion that is flush with the column wiping materials 53B and 54B of the columns 53 and 54 on the outer surface side and abuts against the column wiping materials 53B and 54B. A beam wiping material 55B is added to the beam main body 55A. The beam wiping material 55B is a panel in which a vertical frame material and a horizontal frame material are framed. The beam 55 includes an inner wall surface material 58A on the beam main body 55A, and an outer wall surface material 58B on the beam wiping material 55B.
[0053]
However, the column main body 53A of the column 53 provided in the small wall 51A of the lower-floor building unit 51 is fixed by nailing the column head metal 61, and the bolt 62 is provided on the upper surface of the column head metal 61.
[0054]
Similarly to the pillar 53, the pillar 54 provided in the small wall 52A of the lower-floor building unit 52 is fixed with a head metal (not shown) and includes a bolt (not shown).
[0055]
The beam main body 55A of the beam 55 is made of wood, and is provided with connection pieces 63 and 63 having a rectangular tube shape at both ends. As shown in FIG. 8, the connection fitting 63 is provided with a bolt insertion hole 64 at the bottom, and two attachment plates 65 are welded to both sides of the upper surface, and the end of the beam body 55A is connected to the two attachment plates 65. The mounting plate 65 is inserted in between and fixed to the beam 55 by nailing to the side surface of the beam body 55A.
[0056]
In the unit building 50, as shown in FIGS. 8 to 10, one end of the beam main body 55A of the beam 55 is attached to the bolt 62 provided on the column main body 53A of the column 53 of the small wall 51A of the lower floor building unit 51. The bolt 62 is inserted through the bolt insertion hole 64 at the bottom of the connection fitting 63 on the side, and the nut 62 A is fastened to the bolt 62 inside the connection fitting 63. Further, the bolts provided in the column main body 54A of the column 54 of the small wall 52A of the lower-floor building unit 52 are inserted through the bolt insertion holes 64 at the bottom of the connection hardware 63 on the other end side of the beam main body 55A of the beam 55 to be connected. A nut is fastened to the bolt inside the hardware 63.
[0057]
Note that joint plates 66 are provided on the upper surfaces of the upper frame members 51B and 52B constituting the wall frames of the small walls 51A and 52A of the lower floor building units 51 and 52 and the upper surfaces of both ends of the beam body 55A of the beam 55. It is fixed by nailing to improve the bonding strength of the beam 55 to the small walls 51A and 52A. Counterbores 51C and 55C for the joint plate 66 are provided on the upper frame members 51B and 52B and the beam body 55A so that the joint plate 66 does not cause a step between the upper surfaces of the upper frame members 51B and 52B and the upper surface of the beam body 55A. It has been.
[0058]
Further, an upper floor receiving object 71 is nail-fixed to an intermediate portion of the beam main body 55A of the beam 55, and one joining bolt 72 and two guide pins 73 are provided on the upper surface of the upper floor receiving object 71. A counterbore 55C for the upper floor receiving object 71 is provided on the beam main body 55A so that the upper floor receiving object 71 does not cause a step on the upper surface of the intermediate portion of the beam main body 55A. Thereby, when supporting the upper-floor building unit mounted in each of the two lower-floor building units 51 and 52 by the intermediate part of the beam 55, the column base hardware (not shown) provided in the upper-floor building unit is attached. It can be guided by the guide pin 73 of the upper floor receiving object 71 and fixed by the joining bolt 72.
[0059]
As described above, in the unit building 50 in which the beam 55 is placed on the upper end surfaces of the column main bodies 53A and 54A of the opposite columns 53 and 54 of the building units 51 and 52, the columns 53 and 54 and the beams An opening 56 is formed between the pillars 53 and 54 in a state where the pillars 53B and 54B and the beam filler 55B are abutted together in the outer surface of the joint portion 55. A window sash 56A is fitted to the portion 56 (FIG. 12).
[0060]
 In the unit building 50, as shown in FIG. 11 and FIG. 12, the column wiping materials 53B and 54B and the beam wiping material 55B, which form a puddle at the outer surface of the joint portion between the columns 53 and 54 and the beam 55, are joined together. Therefore, the joint 75 at the abutting portion between the pillars 53 and 54 and the beam 55 viewed from the outside is linear, and the waterproof seal material 76 is loaded on the joint 75 (FIG. 10). It should be noted that the first and second column wiping materials 53B and 54B and the beam wiping material 55B are not associated with the butted portions of the columns 53 and 54 and the beam 55.referenceWhen the joint structure of the columns 15 and 16 and the beam 14 used inside the building is adopted as described above in the form, the joint 75A of the butt portion between the columns 53 and 54 and the beam 55 is as shown in FIGS. It will be L-shaped.
[0061]
 Further, in the unit building 50, the column bodies 53A and 54A of the columns 53 and 54 are the first.referenceAs described above in the form, the same size material as the pillars 15 and 16 used in the building can be used in common. The beam body 55A of the beam 55 is also the first.referenceThe same size material as that of the beam 14 can be used in common. As a result, the capital hardware 61 and the connection hardware 63 are connected to the first.referenceIt can be used in common with the stigma 21 and the connection hardware 23 of the form.
[0062]
Therefore, according to the present embodiment, there are the following operations.
(1) Since the columns 53 and 54 and the beam 55 are fastened with bolts / nuts, sufficient pull-out strength can be secured. Since the bolts 62 on the pillars 53 and 54 side are inserted into the connection hardware 63 provided on the beam 55, the strength of the beam 55 may be impaired as compared with the case where a bolt insertion hole is formed in the beam 55. There is no.
[0063]
(2) It is a simple structure in which the bolts 62 are provided on the pillars 53 and 54 and the connection hardware 63 is provided on the beam 55, so that the processing cost can be reduced.
[0064]
(3) By attaching the attachment plate 65 provided on the connection metal 63 to the side surface of the wooden beam 55, the connection metal 63 can be easily and reliably provided on the wooden beam 55.
[0065]
(4) At the joint between the pillars 53 and 54 and the beam 55 that form the outer part of the unit building 50, the column-shaped column and the beam-shaped portion are abutted, so the column 53 viewed from the outside of the unit building 50. , 54 and the joint 55 of the beam 55 are linear (I type), the joint 75 of the butting portion is simple and small, the appearance can be improved, and the waterproof line can be simplified.
[0066]
(5) Since the column wiping portion is configured by adding the column wiping materials 53B and 54B to the column main bodies 53A and 54A, the column main body 53A and 54A have the same cross-sectional material as the columns 15 and 16 provided inside the building. Can be used.
[0067]
(6) Since the beam wiping portion is configured by adding the beam wiping material 55B to the beam main body 55A, the beam main body 55A having the same cross-sectional material as the beam 55 provided inside the unit building 50 can be used. The same material as the connection hardware 21 provided on the beam 14 inside the building can be used for the beam main body 55A, and the parts can be shared.
[0068]
(7) By attaching the waterproof seal material 76 to the joint 75 at the abutting portion between the column warp portion and the beam warp portion, the joint between the columns 53 and 54 and the beam 55 is waterproofed by a simple linear waterproof seal material 76. be able to.
[0069]
(8) At the joint of the pillars 53 and 54 of both building units 51 and 52 that form a wide opening 56 across the adjacent building units 51 and 52 and the beam 55 spanned between the pillars 53 and 54, The above (1) to (7) can be realized.
[0070]
 (No.2Embodiment) (FIGS. 15 and 16)
 First2The embodiment1In the unit building 50 of the embodiment, the outer wall surface material 58B on the surface of the beam wiping material 55B provided on the beam 55 is preliminarily provided with an outer wall surface finish 80 such as painting at the factory production stage.
[0071]
According to the present embodiment, it is only necessary to install both the building units 51 and 52 on the construction site, join the beam 55 to the columns 53 and 54, and then perform only waterproof construction at the joint between the columns 53 and 54 and the beam 55. Therefore, it is possible to reduce the number of construction steps for the field installation tool.
[0072]
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 connection hardware used in the present invention is not necessarily limited to a rectangular tube shape, and may be other shapes such as a box shape or a U-shape.
[0073]
In addition, the column wiping portion and the beam wiping portion used for the column and the beam in the present invention may be provided by cutting the column main body and the beam main body into the column and the beam.
[0074]
Further, the present invention is not limited to unit buildings, and can be widely applied to general buildings.
[0075]
【The invention's effect】
As described above, according to the present invention, a sufficient pull-out strength can be ensured at the junction between the column and the beam with a simple structure.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a unit building to which the present invention is applied.
FIG. 2 shows the firstreferenceIt is a perspective view which shows the joining structure of the form pillar and beam.
FIG. 3 is a perspective view showing a connection hardware.
4A and 4B show connecting hardware, wherein FIG. 4A is a front view, FIG. 4B is a side view, and FIG. 4C is a bottom view.
FIG. 5 shows the secondreferenceIt is a perspective view which shows the joining structure of the form pillar and beam.
FIG. 6 is a perspective view showing a steel beam and a connecting hardware.
FIG. 7 shows the first1It is a perspective view which shows the unit building of embodiment.
FIG. 8 shows the first1The column-beam joint structure of the embodiment is shown from the inside of the building, (A) is a perspective view showing a beam introduction process, (B) is a perspective view showing a beam fixing process.
FIG. 9 shows the first1It is a perspective view which shows the junction structure of the pillar and beam of embodiment from the exterior of a building.
FIG. 10 is a cross-sectional view taken along line XX of FIG.
FIG. 11 shows the first1The junction structure of the pillar and beam of an embodiment is shown typically, (A) is a perspective view showing a beam introduction process from the inside of a building, and (B) is a perspective view showing a beam fixation process from the exterior of a building.
FIG. 12 shows the first1It is a front view which shows the external appearance of the building of embodiment.
FIG. 13 shows the first1It is a perspective view which shows typically the junction structure of the pillar and beam as a comparative example of embodiment from the exterior of a building.
FIG. 14 shows the first1It is a front view which shows the external appearance of the building as a comparative example of embodiment.
FIG. 15 shows the first2FIG. 2 is a perspective view showing a beam introduction process, and (B) is a perspective view showing a beam fixing process. FIG.
FIG. 16 shows the first2It is a perspective view which shows the junction structure of the pillar and beam of embodiment from the exterior of a building.
[Explanation of symbols]
 14 Beam
 15 pillars
 22 volts
 23, 42 Connection hardware
 25 Mounting plate
 41 Channel steel
 50 unit building
 51, 52 Building unit
 53, 54 pillars
 53A, 54A Pillar body
 53B, 54B Pillars
 55 Beam
 55A beam body
 55B Beam plaster material
 56 opening
 62 volts
 62A nut
 63 Connection hardware
 65 Mounting plate
 75 joints
 76 Waterproof sealant
 80 Exterior wall finish

Claims

In the joint structure of a column and a beam that is fixed by placing a beam on the top surface of a wooden column,
Insert the bottom of the connecting hardware provided on the beam into the bolt provided on the upper end surface of the column, and tighten the nut to the bolt inside the connecting hardware ,
When the pillar and the beam constitute the outer shell of the building, a column cover extending from the lower end of the column to the upper end of the beam is provided on the outer surface side of the upper end surface on which the beam of the column rests, and on the outer surface side of the beam. A joint structure of a column and a beam, characterized in that it is provided with a beam softening portion that is flush with the column softening portion of the column and abuts against the column softening portion .

2. The column-to-beam joint structure according to claim 1, wherein the beam is made of wood, and a mounting plate provided on the connection hardware is attached to a side surface of the wood beam.

The column-beam joint structure according to claim 1, wherein the beam is made of a steel frame, and the connection hardware is welded to the lower surface of the beam of the steel frame.

The column-beam joint structure according to any one of claims 1 to 3, wherein the column wiping portion is configured by adding a column wiping material to a column main body.

The column-beam joining structure according to any one of claims 1 to 3, wherein the beam wiping portion is configured by adding a beam wiping material to a beam main body.

The joint structure of a column and a beam according to any one of claims 1 to 5 , wherein a waterproof sealing material is loaded in a joint between the butted portion of the column and the beam.

The joint structure of a column and a beam according to any one of claims 1 to 6 , wherein an outer wall surface finish is applied in advance to a surface of the beam wiping portion.

Adjacent building units are juxtaposed, and a beam is placed on the upper end surface of the opposing columns of both building units. employing a unit building comprising those described in any one of claim 1-7.