JP3959010B2

JP3959010B2 - Building structure

Info

Publication number: JP3959010B2
Application number: JP2002296433A
Authority: JP
Inventors: 知香伊理; 克則大西
Original assignee: Sekisui Chemical Co Ltd
Current assignee: Sekisui Chemical Co Ltd
Priority date: 2002-02-05
Filing date: 2002-10-09
Publication date: 2007-08-15
Anticipated expiration: 2022-10-09
Also published as: JP2003301512A

Description

【０００１】
【発明の属する技術分野】
本発明は柱と梁の接合によって構成される建物の構造に関する。
【０００２】
【従来の技術】
建物の構造として、図１１に示す如く、互いに直交する第１の方向（ｙ方向）と第２の方向（ｘ方向）のそれぞれに第１のフレーム１と第２のフレーム２のそれぞれを設置し、両フレーム１、２を接合してなるものがある（特許文献１）。第１のフレーム１は柱１Ａと梁１Ｂを剛接合したラーメン構造からなり、第２のフレーム２は柱２Ａと梁２Ｂを剛接合したラーメン構造からなり、第２のフレーム２の梁２Ｂを第１のフレーム１の梁１Ｂに突き合せ接合している。
【０００３】
【特許文献１】
特許2992581（2頁、第１図、第３図）
【０００４】
【発明が解決しようとする課題】
従来技術では、例えば第２のフレーム２において、柱２Ａを梁２Ｂに直接剛接合している。従って、柱２Ａは梁２Ｂが突き合せ接合されている第１のフレーム１の梁１Ｂが仕切る居室の内側に必ず張り出るものとなり、居室の有効利用巾や開口巾を狭巾化する。
【０００５】
本発明の課題は、第１と第２のラーメン構造のフレームを接合してなる建物において、居室の有効利用巾や開口巾を広巾化することにある。
【０００６】
【課題を解決するための手段】
請求項１の発明は、柱と梁を剛接合したラーメン構造のフレームが、第１と第２の互いに直交する２つの方向のそれぞれに沿って設けられ、それらの互いに直交するフレームを接合してなる建物の構造において、
一方のフレームの形鋼からなる梁の巾以下の小寸法の背をもつ柱が該一方のフレーム内に設置され、他方のフレームの形鋼からなる梁のフランジと上記小寸法の背をもつ柱とが上記一方のフレームの形鋼からなる梁のフランジと接合金物とを介して剛接合されて該他方のフレームを構築するようにしたものである。
【０００７】
請求項２の発明は、請求項１の発明において更に、前記一方のフレームが建物の奥行方向に沿って設けられ、前記他方のフレームが上記一方のフレームの中間部に接合されるようにしたものである。
【０００９】
請求項３の発明は、請求項１または２のいずれかの発明において更に、前記小寸法の背をもつ柱の前記一方のフレームの梁に剛接合される柱端部に補強金物を設けたようにしたものである。
【００１０】
請求項４の発明は、前記小寸法の背をもつ柱の柱端部に設けた補強金物と前記接合金物を高力ボルトにより剛接合するとともに、前記他方のフレームの梁と前記接合金物を高力ボルトにより剛接合し、上記小寸法の背をもつ柱に加わるモーメントに起因する引張力より大きな力を発現できるように、前記一方のフレームの梁を介して該柱と上記接合金物を上記高力ボルトを用いた引張接合により剛接合し、上記小寸法の背をもつ柱に加わるモーメントに起因する剪断力より大きな力を発現できるように、上記一方のフレームの梁と上記接合金物を上記高力ボルトを用いた摩擦接合により剛接合し、上記他方のフレームの梁に加わるモーメントに起因する剪断力より大きな力を発現できるように、上記接合金物と上記他方のフレームの梁を上記高力ボルトを用いた摩擦接合により剛接合するようにしたものである。
【００１１】
【作用】
請求項１の発明によれば下記（１）の作用がある。
（１）他方のフレームにおいて、小寸法の背をもつ柱を、一方のフレームの梁を介して該他方のフレームの梁に剛接合している。従って、他方のフレームの小寸法の背をもつ柱は、一方のフレームの梁の巾内で立設され、該一方のフレームの梁が仕切る居室等の内側に張り出るものにならず、居室等の有効利用巾や開口巾を広巾化するものになる。
また、一方のフレームの梁に接合金物を設けたから、この接合金物の存在を介して、他方のフレームの梁と小寸法の背をもつ柱を強固に剛接合できる。
【００１２】
請求項２の発明によれば下記（２）の作用がある。
（２）建物が奥行方向に長いとき、建物の構造強度上、奥行方向に沿って設けられる一方のフレームの中間部に他方のフレームを接合することが必要になる。このとき、建物の構造強度を確保するために、建物の奥行方向の中間部に他方のフレームを設置しながら、上述（１）により、居室の有効利用巾や開口巾を広巾化できる。
【００１４】
請求項３の発明によれば下記（３）の作用がある。
（３）他方のフレームの小寸法の背をもつ柱の柱端部に補強金物を設けたから、この柱を一方のフレームの梁を介して他方のフレームの梁に強固に剛接合できる。
【００１５】
請求項４の発明によれば下記（４）〜（６）の作用がある。
（４）一方のフレームの梁を介して該柱の補強金物と接合金物を高力ボルトを用いた引張接合により剛接合し、小寸法の背をもつ柱に加わるモーメントに起因する引張力より大きな力を発現できるようにした。従って、柱が降伏するまで柱と接合金物との接合部は開かないし、柱が全塑性に至るまで高力ボルトの破断等、仕口を構成する要素に障害を生じない。
【００１６】
（５）一方のフレームの梁と接合金物を高力ボルトを用いた摩擦接合により剛接合し、小寸法の背をもつ柱に加わるモーメントに起因する剪断力より大きな力を発現できるようにした。従って、柱が降伏するまで柱と一方のフレームの梁の接合部は降伏しないし、柱が全塑性に至るまで柱と一方のフレームの梁の接合部は剪断破断しない。
【００１７】
（６）接合金物と他方のフレームの梁を高力ボルトを用いた摩擦接合により剛接合し、他方のフレームの梁に加わるモーメントに起因する剪断力より大きな力を発現できるようにした。従って、柱が全塑性に至るまで一方のフレームの梁と他方のフレームの梁の接合部は剪断破断しない。
【００１８】
【発明の実施の形態】
図１は本発明による建物の構造を示し、（Ａ）は全体平面図、（Ｂ）は要部拡大平面図、図２は図１の要部斜視図、図３は第１実施形態の柱−梁接合仕口の柱部分を切断して示す断面図、図４は図３のIV−IV線に沿う断面図、図５は図３のV−V線に沿う矢視図、図６は図４のVI−VI線に沿う断面図、図７は接合金物を示し、（Ａ）は側面図、（Ｂ）は平面図、図８は接合金物を示し、（Ａ）は側面図、（Ｂ）は平面図、図９は本発明例の建物の間取り図、図１０は図９のフレーム配置図、図１１は従来例を示す平面図、図１２は第２実施形態の柱−梁接合仕口を示し、（Ａ）は分解斜視図、（Ｂ）は組立斜視図、図１３は柱−梁接合仕口の柱部分を切断して示す断面図、図１４は図１３のXIV−XIV線に沿う断面図、図１５は図１３のXV−XV線に沿う矢視図、図１６は図１４のXVI−XVIに沿う断面図、図１７は接合金物を示し、（Ａ）は側面図、（Ｂ）は平面図、（Ｃ）は正面図、図１８は接合金物を示し、（Ａ）は側面図、（Ｂ）は平面図、（Ｃ）は正面図、図１９は柱−梁接合仕口の力の伝達状態を示し、（Ａ）は柱と接合金物を示す模式図、（Ｂ）は梁と接合金物を示す模式図である。
【００１９】
（第１実施形態）（図１〜図１０）
図１の建物１００は、第１の方向（ｙ方向）に沿う２個の第１のフレーム１０Ａ、１０Ｂを平行配置し、第１の方向に直交する第２の方向（ｘ方向）に沿う4個の第２のフレーム２０Ａ〜２０Ｄを2個の第１のフレーム１０Ａ、１０Ｂの間に配置し、4個の第２のフレーム２０Ａ〜２０Ｄのそれぞれを第１のフレーム１０Ａ、１０Ｂに接合して構築される。このとき、第１のフレーム１０Ａ、１０Ｂは建物１００の奥行方向に沿って設けられ、第２のフレーム２０Ｂ、２０Ｃは第１のフレーム１０Ａ、１０Ｂの中間部に接合される。
【００２０】
以下、第１のフレーム１０Ａ、１０Ｂと第２のフレーム２０Ａ、２０Ｄの接合仕口について、第１のフレーム１０Ａの接合仕口を代表にして説明する。
【００２１】
第１のフレーム１０Ａは、２本の柱１１Ａ、１１Ｂを梁１２に剛接合したラーメン構造からなる。柱１１Ａ、１１Ｂは、Ｈ形鋼からなり、建物１００の柱を構成する。梁１２も、Ｈ形鋼からなり、建物１００の床梁を構成する。
【００２２】
このとき、第１のフレーム１０Ａは、図１、図２に示す如く、柱１１Ａ、１１Ｂの柱脚（下端部）を梁１２に剛接合してなり、柱１１Ａ、１１Ｂの背の方向（Ｈ形鋼のウェブに沿う方向）を梁１２の長手方向に沿うように配置し、柱１１Ａ、１１Ｂの柱脚を梁１２のフランジ巾内に納める。これにより、第１のフレーム１０Ａは、梁１２の長手方向（ｙ方向）にのみ抵抗力を備えた一方向ラーメンを構成するものとなり、梁１２がｘ方向の第２のフレーム２０Ａや第２のフレーム２０Ｄと接合されるコーナー部に必ずしも柱を設ける必要がなく、ｙ方向の任意の位置に柱１１Ａ、１１Ｂを配置することができる。
【００２３】
尚、建物１００は、柱１１Ａ、１１Ｂの柱頭（上端部）に、梁１２と同様の接合仕口で天井梁を剛接合するものでも良い。
【００２４】
更に、第２のフレーム２０Ｂ、２０Ｃの接合仕口について、第２のフレーム２０Ｂの接合仕口を代表にして説明する。
【００２５】
第２のフレーム２０Ｂは、２本の柱２１Ａ、２１Ｂを梁２２に剛接合したラーメン構造からなる。柱２１Ａ、２１Ｂは、Ｈ形鋼からなり、建物１００の柱を構成する。梁２２も、Ｈ形鋼からなり、建物１００の床梁を構成する。
【００２６】
このとき、第２のフレーム２０Ｂは、第１のフレーム１０Ａとの接合部において、図１、図２に示す如く、第１のフレーム１０Ａの梁１２の巾以下の小寸法の背（Ｈ形鋼のウェブに沿う高さ）をもつ柱２１Ａの柱脚（下端部）を該第１のフレーム１０Ａの梁１２のフランジ巾内に納め、かつ柱２１Ａの背の方向を梁２２の長手方向に沿うように配置し、第２のフレーム２０Ｂの梁２２と柱２１Ａの柱脚とを第１のフレーム１０Ａの梁１２を介して剛接合した。また、第２のフレーム２０Ｂは、第１のフレーム１０Ｂとの接合部において、第１のフレーム１０Ｂの梁１２の巾以下の小寸法の背をもつ柱２１Ｂの柱脚（下端部）を該第１のフレーム１０Ｂの梁１２のフランジ巾内に納め、かつ柱２１Ｂの背の方向を梁２２の長手方向に沿うように配置し、第２のフレーム２０Ｂの梁２２と柱２１Ｂの柱脚とを第１のフレーム１０Ｂの梁１２を介して剛接合した。これにより、第２のフレーム２０Ｂは、梁２２の長手方向（ｘ方向）にのみ抵抗力を備えた一方向ラーメンを構成するものとなり、しかも第１のフレーム１０Ａ、１０Ｂが仕切る居室の内側に柱２１Ａ、２１Ｂを張り出すことがない。
【００２７】
尚、建物１００は、柱２１Ａ、２１Ｂの柱頭（上端部）に梁２２と同様の接合仕口で天井梁を剛接合するものでも良い。
【００２８】
また、第２のフレーム２０Ｂは、柱２１Ａと梁２２の接合仕口（柱２１Ｂと梁２２の接合仕口も同じ）に以下の如くの補強構造を採用している（図３〜図８）。第１のフレーム１０Ａの梁１２は、柱２１Ａと梁２２に挟まれ、柱２１Ａと梁２２の接合仕口の中を障害物の如くに貫通する。
【００２９】
第２のフレーム２０Ｂの柱２１Ａの第１のフレーム１０Ａの梁１２に剛接合される柱脚に補強金物３１を設けた。補強金物３１は、図３、図４に示す如く、Ｌ字状側板３１Ａと平板状底板３１Ｂの溶接体からなり、柱２１Ａの左右のフランジのそれぞれとウェブとの交差部に溶接されて配置される。側板３１Ａの一側部がフランジに、他側部がウェブに溶接される。
【００３０】
第１のフレーム１０Ａの梁１２に2個の接合金物４１と1個の接合金物４２を設けた。
【００３１】
接合金物４１は、図７に示す如く、梁１２のウェブの一側面に添設される狭巾の平板状取付板４１Ａと、取付板４１Ａの両側縁のそれぞれに溶接される平板状補強板４１Ｂ、円弧板状補強板４１Ｃと、取付板４１Ａ、補強板４１Ｂ、４１Ｃの上下端部のそれぞれに溶接される上下の平板状接合板４１Ｄ、４１Ｅとからなる。接合板４１Ｄ、４１Ｅは梁１２のフランジから突き出る先端部を第２のフレーム２０Ｂの梁２２のための接合部とする。
【００３２】
接合金物４２は、図８に示す如く、梁１２のウェブの他側面に添設される広巾の平板状取付板４２Ａと、取付板４２Ａの中央部に溶接される平板状補強板４２Ｂと、取付板４２Ａの両側縁に溶接される円弧板状補強板４２Ｃと、取付板４２Ａ、補強板４２Ｂ、４２Ｃの上下端部のそれぞれに溶接される上下の平板状接合板４２Ｄ、４２Ｅとからなる。
【００３３】
従って、図３〜図６に示す如く、第１のフレーム１０Ａの梁１２における第２のフレーム２０Ｂの柱２１Ａ、梁２２が接合される部分において、梁１２のウェブの両側面のそれぞれに2個の接合金物４１と1個の接合金物４２とが添設され、接合金物４１、４２の取付板４１Ａ、４２Ａがボルト４３、ナット４３Ａで梁１２のウェブに、接合金物４１、４２の下接合板４１Ｅ、４２Ｅがボルト４４、４５、ナット４４Ａ、４５Ａで梁１２の下フランジに剛接合される（図４〜図６）。次に、第２のフレーム２０Ｂの柱２１Ａの柱脚が梁１２の上フランジの上に載置され、柱２１Ａに設けてある補強金物３１の底板３１Ｂと、梁１２の上フランジと、接合金物４１、４２の上接合板４１Ｄ、４２Ｄとが、ボルト４６、４７、ナット４６Ａ、４７Ａで互いに剛接合される。更に、第２のフレーム２０Ｂの梁２２の上下のフランジが、2個の接合金物４１の上下の接合板４１Ｄ、４１Ｅの先端接合部の上下に差し込まれ、それらがボルト４８、４９、ナット４８Ａ、４９Ａで互いに剛接合される。これにより、第２のフレーム２０Ｂの柱２１Ａと梁２２が第１のフレーム１０Ａの梁１２を介して剛接合されるものとなる。
【００３４】
従って、建物１００の上述した柱−梁接合構造によれば以下の作用がある。
▲１▼第２のフレーム２０Ｂにおいて、小寸法の背をもつ柱２１Ａを、第１のフレーム１０Ａの梁１２を介して該第２のフレーム２０Ｂの梁２２に剛接合している。従って、第２のフレーム２０Ｂの小寸法の背をもつ柱２１Ａは、第１のフレーム１０Ａの梁１２の巾内で立設され、該第１のフレーム１０Ａの梁１２が仕切る居室の内側に張り出るものにならず、居室の有効利用巾や開口巾を広巾化するものになる。
【００３５】
▲２▼建物１００が奥行方向に長いとき、建物１００の構造強度上、奥行方向に沿って設けられる第１のフレーム１０Ａの中間部に第２のフレーム２０Ｂを接合することが必要になる。このとき、建物１００の構造強度を確保するために、建物１００の奥行方向の中間部に第２のフレーム２０Ｂを設置しながら、上述▲１▼により、居室の有効利用巾や開口巾を広巾化できる。
【００３６】
▲３▼第１のフレーム１０Ａの梁１２に接合金物４１、４２を設けたから、この接合金物４１、４２の存在を介して、第２のフレーム２０Ｂの梁２２と小寸法の背をもつ柱２１Ａを強固に剛接合できる。
【００３７】
▲４▼第２のフレーム２０Ｂの小寸法の背をもつ柱２１Ａの柱端部に補強金物３１を設けたから、この柱２１Ａを第１のフレーム１０Ａの梁１２を介して第２のフレーム２０Ｂの梁２２に強固に剛接合できる。
【００３８】
図９は建物２００の間取りを示し、図１０は建物２００を構成する第１のフレーム１０Ａ、１０Ｂと第２のフレーム２０Ａ〜２０Ｄの配置例を示す。奥行方向に長い建物２００において、奥行方向に沿って設けられる第１のフレーム１０Ａ、１０Ｂの中間部に第２のフレーム２０Ｂ、２０Ｃを接合したとき、第２のフレーム２０Ｂ、２０Ｃを構成する柱２１Ａ、２１Ｂを第１のフレーム１０Ａ、１０Ｂの梁１２のフランジ巾内に納めることにより、建物２００の有効利用巾や開口巾を広巾化できる。
【００３９】
（第２実施形態）（図１２〜図１９）
第２実施形態は、第１実施形態におけると同様に、図１２に示す如く、第２のフレーム２０Ｂの梁２２と柱２１Ａを第１のフレーム１０Ａの梁１２を介して剛接合したものであり、第２のフレーム２０Ｂの柱２１Ａと梁２２の接合仕口（柱２１Ｂと梁２２の接合仕口も同じ）に以下の如くの補強構造を採用している（図１３〜図１８）。梁１２は、柱２１Ａと梁２２に挟まれ、柱２１Ａと梁２２の接合仕口の中を障害物の如くに貫通する。
【００４０】
第２のフレーム２０Ｂの柱２１Ａの第１のフレーム１０Ａの梁１２に剛接合される柱脚に補強金物５１を設けた。補強金物５１は、第１実施形態の補強金物３１と同様に構成されており、図１３、図１４に示す如く、Ｌ字状側板５１Ａと平板状底板５１Ｂの溶接体からなり、柱２１Ａの左右のフランジのそれぞれとウェブとの交差部に溶接されて配置される。側板５１Ａの一側部がフランジに、他側部がウェブに溶接される。
【００４１】
第１のフレーム１０Ａの梁１２に2個の接合金物６１と2個の接合金物６２を設けた。
【００４２】
接合金物６１は、図１７に示す如く、梁１２のウェブの一側面に添設されるＵ字板状取付板６１Ａと、取付板６１Ａの上下端部のそれぞれに溶接される上下の平板状接合板６１Ｂ、６１Ｃとからなる。接合金物６１は、取付板６１Ａを梁１２のフランジ内に納め、取付板６１Ａに溶接された接合板６１Ｂ、６１Ｃを梁１２のフランジから第２のフレーム２０Ｂの梁２２の側に突き出し、接合板６１Ｂ、６１Ｃの上記突き出しの根元の一側を取付板６１Ａの一側との溶接部から直線状に延在させ、上記突き出しの根元の他側を取付板６１Ａの他側との溶接部から斜め状に延在させ、取付板６１Ａから接合板６１Ｂ、６１Ｃへの力の伝達のスムースを図っている。接合板６１Ｂ、６１Ｃは梁１２のフランジから突き出る先端部を第２のフレーム２０Ｂの梁２２のための接合部とする。
【００４３】
接合金物６２は、図１８に示す如く、梁１２のウェブの他側面に添設されるＵ字板状取付板６２Ａと、取付板６２Ａの上下端部のそれぞれに溶接される上下の平板状接合板６２Ｂ、６２Ｃとからなる。
【００４４】
従って、図１３〜図１６に示す如く、第１のフレーム１０Ａの梁１２における第２のフレーム２０Ｂの柱２１Ａ、梁２２が接合される部分において、梁１２のウェブの両側面のそれぞれに各2個の接合金物６１と接合金物６２とが添設され、接合金物６１、６２の取付板６１Ａ、６２Ａが高力ボルト６３、ナット６３Ａで梁１２のウェブに、接合金物６１、６２の下接合板６１Ｃ、６２Ｃが高力ボルト６４、６５、ナット６４Ａ、６５Ａで梁１２の下フランジに剛接合される（図１４〜図１６）。
【００４５】
次に、第２のフレーム２０Ｂの柱２１Ａの柱脚が梁１２の上フランジの上に載置され、柱２１Ａに設けてある補強金物５１の底板５１Ｂと、梁１２の上フランジと、各2個の接合金物６１、６２の上接合板６１Ｂ、６２Ｂとが、高力ボルト６６、６７、ナット６６Ａ、６７Ａで互いに剛接合される。
【００４６】
更に、第２のフレーム２０Ｂの梁２２の上下のフランジが、２個の接合金物６１の上下の接合板６１Ｂ、６１Ｃの先端接合部の上下に差し込まれ、それらが高力ボルト６８、６９、ナット６８Ａ、６９Ａで互いに剛接合される。これにより、第２のフレーム２０Ｂの柱２１Ａと梁２２が第１のフレーム１０Ａの梁１２を介して剛接合されるものとなる。
【００４７】
以下、第２実施形態の柱−梁接合仕口の接合条件について説明する。
(A)柱２１Ａの端部に加わるモーメントＣＭを高力ボルト６６、６７の間隔ｄで除した引張力Ｐが、梁１２と柱２１Ａの接合部に作用する。この引張力Ｐより大きな力を発現できるように、梁１２と接合金物６１、６２と補強金物５１を、高力ボルト６６、６７を用いた引張接合により剛接合する。
【００４８】
(B)柱２１Ａの端部に加わるモーメントＣＭを柱２１Ａの背ＣＨで除した剪断力ＣＱが、梁１２と柱２１Ａの接合部に作用する。この剪断力ＣＱより大きな力を発現できるように、梁１２のウエブを介して接合金物６１、６２を、高力ボルト６６、６７を用いた摩擦接合により剛接合する。このとき、梁１２の耐力（剪断力ＣＱに対する耐力）を利用しても良い。
【００４９】
(C)梁２２の端部に加わるモーメントＢＭを梁２２の背ＢＨで除した剪断力ＢＱが、梁１２と梁２２の接合部に作用する。この剪断力ＢＱより大きな力を発現できるように、梁２２と接合金物６１を、高力ボルト６８、６９を用いた摩擦接合により剛接合する。
【００５０】
従って、第２実施形態の柱−梁接合構造によれば以下の作用がある。
▲１▼第２のフレーム２０Ｂにおいて、小寸法の背をもつ柱２１Ａを、第１のフレーム１０Ａの梁１２を介して該第２のフレーム２０Ａの梁２２に剛接合している。従って、第２のフレーム２０Ｂの小寸法の背をもつ柱２１Ａは、第１のフレーム１０Ａの梁１２の巾内で立設され、該第１のフレーム１０Ａの梁１２が仕切る居室の内側に張り出るものにならず、居室の有効利用巾や開口巾を広巾化するものになる。
【００５１】
▲２▼建物１００が奥行方向に長いとき、建物１００の構造強度上、奥行方向に沿って設けられる第１のフレーム１０Ａの中間部に第２のフレーム２０Ｂを接合することが必要になる。このとき、建物１００の構造強度を確保するために、建物１００の奥行方向の中間部に第２のフレーム２０Ｂを設置しながら、上述▲１▼により、居室の有効利用巾や開口巾を広巾化できる。
【００５２】
▲３▼第１のフレーム１０Ａの梁１２に接合金物６１、６２を設けたから、この接合金物の存在を介して、第２のフレーム２０Ａの梁２２と小寸法の背をもつ柱２１Ａを強固に剛接合できる。
【００５３】
▲４▼第２のフレーム２０Ｂの小寸法の背をもつ柱２１Ａの柱端部に補強金物５１を設けたから、この柱２１Ａを第１のフレーム１０Ａの梁１２を介して第２のフレーム２０Ａの梁２２に強固に剛接合できる。
【００５４】
▲５▼第１のフレーム１０Ａの梁１２を介して柱２１Ａの補強金物５１と接合金物６１、６２を高力ボルト６６、６７を用いた引張接合により剛接合し、小寸法の背をもつ柱２１Ａに加わるモーメントＣＭに起因する引張力Ｐより大きな力を発現できるようにした。従って、柱２１Ａが降伏するまで柱２１Ａと接合金物６１、６２との接合部は開かないし、柱２１Ａが全塑性に至るまで高力ボルト６６、６７の破断等、仕口を構成する要素に障害を生じない。
【００５５】
▲６▼第１のフレーム１０Ａの梁１２のウエブを介して接合金物６１と接合金物６２を高力ボルト６６、６７を用いた摩擦接合により剛接合し、小寸法の背をもつ柱２１Ａに加わるモーメントＣＭに起因する剪断力ＣＱより大きな力を発現できるようにした。従って、柱２１Ａが降伏するまで柱２１Ａと第１のフレーム１０Ａの梁１２の接合部は降伏しないし、柱２１Ａが全塑性に至るまで柱２１Ａと第１のフレーム１０Ａの梁１２の接合部は剪断破断しない。
【００５６】
▲７▼接合金物６１と第２のフレーム２０Ｂの梁２２を高力ボルト６１を用いた摩擦接合により剛接合し、第２のフレーム２０Ｂの梁２２に加わるモーメントＢＭに起因する剪断力ＢＱより大きな力を発現できるようにした。従って、柱２１Ａが全塑性に至るまで第１のフレーム１０Ａの梁１２と第２のフレーム２０Ｂの梁２２の接合部は剪断破断しない。
【００５７】
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。
【００５８】
【発明の効果】
以上のように本発明によれば、第１と第２のラーメン構造のフレームを接合してなる建物において、居室の有効利用巾や開口巾を広巾化することができる。
【図面の簡単な説明】
【図１】図１は本発明による建物の構造を示し、（Ａ）は全体平面図、（Ｂ）は要部拡大平面図である。
【図２】図２は図１の要部斜視図である。
【図３】図３は柱−梁接合仕口の柱部分を切断して示す断面図である。
【図４】図４は図３のIV−IV線に沿う断面図である。
【図５】図５は図３のV−V線に沿う矢視図である。
【図６】図６は図４のVI−VI線に沿う断面図である。
【図７】図７は接合金物を示し、（Ａ）は側面図、（Ｂ）は平面図である。
【図８】図８は接合金物を示し、（Ａ）は側面図、（Ｂ）は平面図である。
【図９】図９は本発明例の建物の間取り図である。
【図１０】図１０は図９のフレーム配置図である。
【図１１】図１１は従来例を示す平面図である。
【図１２】図１２は第２実施形態の柱−梁接合仕口を示し、（Ａ）は分解斜視図、（Ｂ）は組立斜視図である。
【図１３】図１３は柱−梁接合仕口の柱部分を切断して示す断面図である。
【図１４】図１４は図１３のXIV−XIV線に沿う断面図である。
【図１５】図１５は図１３のXV−XV線に沿う矢視図である。
【図１６】図１６は図１４のXVI−XVIに沿う断面図である。
【図１７】図１７は接合金物を示し、（Ａ）は側面図、（Ｂ）は平面図、（Ｃ）は正面図である。
【図１８】図１８は接合金物を示し、（Ａ）は側面図、（Ｂ）は平面図、（Ｃ）は正面図である。
【図１９】図１９は柱−梁接合仕口の力の伝達状態を示し、（Ａ）は柱と接合金物を示す模式図、（Ｂ）は梁と接合金物を示す模式図である。
【符号の説明】
１００、２００建物
１０Ａ、１０Ｂ第１のフレーム（一方のフレーム）
１１Ａ、１１Ｂ柱
１２梁
２０Ａ〜２０Ｄ第２のフレーム（他方のフレーム）
２１Ａ、２１Ｂ柱
２２梁
３１、５１補強金物
４１、４２、６１、６２接合金物
６３〜６９高力ボルト[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a building constituted by joining columns and beams.
[0002]
[Prior art]
As shown in FIG. 11, the first frame 1 and the second frame 2 are respectively installed in the first direction (y direction) and the second direction (x direction) orthogonal to each other as shown in FIG. There is one obtained by joining both frames 1 and 2 (Patent Document 1). The first frame 1 has a rigid frame structure in which the column 1A and the beam 1B are rigidly connected, and the second frame 2 has a rigid frame structure in which the column 2A and the beam 2B are rigidly connected, and the beam 2B of the second frame 2 is connected to the first frame 1B. It is butt-joined to the beam 1B of one frame 1.
[0003]
[Patent Document 1]
Patent 2992581 (2 pages, Fig. 1 and Fig. 3)
[0004]
[Problems to be solved by the invention]
In the prior art, for example, in the second frame 2, the pillar 2A is directly rigidly joined to the beam 2B. Accordingly, the column 2A always protrudes inside the living room partitioned by the beam 1B of the first frame 1 to which the beam 2B is butt-joined, thereby narrowing the effective use width and the opening width of the living room.
[0005]
An object of the present invention is to widen the effective use width and opening width of a living room in a building formed by joining frames of first and second frame structures.
[0006]
[Means for Solving the Problems]
According to the first aspect of the present invention, a frame having a rigid frame structure in which a column and a beam are rigidly connected is provided along each of the first and second directions orthogonal to each other, and the frames orthogonal to each other are connected. In the structure of the building
A pillar with a small size less than the width of the beam made of the shape steel of one frame is installed in the one frame, and a flange of the beam made of the shape steel of the other frame and the pillar with the small size of the above-mentioned size Are rigidly joined via the flange of the beam made of the shape steel of the above-mentioned one frame and the joint metal to construct the other frame.
[0007]
According to a second aspect of the invention, in the first aspect of the invention, the one frame is provided along a depth direction of the building, and the other frame is joined to an intermediate portion of the one frame. It is.
[0009]
According to a third aspect of the present invention, in the first or second aspect of the present invention, a reinforcement metal is provided at a column end portion rigidly joined to a beam of the one frame of the column having the small size. It is a thing.
[0010]
The invention according to claim 4 is characterized in that the reinforcing metal provided at the column end of the column having the small size and the joint metal are rigidly joined with a high-strength bolt, and the beam of the other frame and the joint metal are made high. The column and the joint hardware are connected to each other through the beam of the one frame so that a force greater than the tensile force caused by the moment applied to the column having the small size can be expressed. The beam of the one frame and the joint hardware are connected to the height of the frame so that a force greater than a shearing force caused by a moment applied to the column having the small size can be expressed. The joint metal and the beam of the other frame are bonded to each other so that a force greater than a shearing force caused by a moment applied to the beam of the other frame can be expressed by friction bonding using a force bolt. By friction bonding using a force volts is obtained so as to rigidly joined.
[0011]
[Action]
The invention according to claim 1 has the following effect (1) .
(1) In the other frame, a column having a small back is rigidly joined to a beam of the other frame via a beam of one frame. Therefore, the column having the small size of the other frame is erected within the width of the beam of one frame, and does not protrude inside the living room or the like partitioned by the beam of the one frame. The effective use width and the opening width are widened.
In addition, since the joint metal is provided on the beam of one frame, the beam having the small back can be firmly and rigidly joined to the beam of the other frame through the presence of the joint hardware.
[0012]
The invention according to claim 2 has the following effect (2) .
(2) When a building is long in the depth direction, it is necessary to join the other frame to an intermediate portion of one frame provided along the depth direction because of the structural strength of the building. At this time, in order to ensure the structural strength of the building, the effective use width and the opening width of the living room can be widened according to the above (1) while installing the other frame in the middle portion in the depth direction of the building.
[0014]
The invention according to claim 3 has the following effect (3) .
(3) Since the reinforcement hardware is provided at the column end portion of the column having the small back of the other frame, this column can be firmly and rigidly joined to the beam of the other frame through the beam of one frame.
[0015]
According to invention of Claim 4 , there exists an effect | action of following (4) - (6) .
(4) The reinforcement metal and the joint metal of the pillar are rigidly joined by tensile joining using a high-strength bolt through the beam of one frame, and the tensile force is larger than the tensile force caused by the moment applied to the pillar having a small size. I was able to express force. Therefore, the joint between the column and the joint metal is not opened until the column yields, and the elements constituting the joint, such as the breakage of the high-strength bolt, are not disturbed until the column is fully plastic.
[0016]
(5) The beam of one frame and the metal fitting were rigidly joined by friction welding using high-strength bolts so that a force greater than the shearing force caused by the moment applied to the column having a small size could be expressed. Therefore, the junction between the column and the beam of one frame does not yield until the column yields, and the junction between the column and the beam of one frame does not shear fracture until the column reaches full plasticity.
[0017]
(6) The joint hardware and the beam of the other frame are rigidly joined by friction welding using a high-strength bolt so that a force greater than the shear force caused by the moment applied to the beam of the other frame can be expressed. Therefore, the joint between the beam of one frame and the beam of the other frame does not shear fracture until the column reaches full plasticity.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows the structure of a building according to the present invention, (A) is an overall plan view, (B) is an enlarged plan view of the main part, FIG. 2 is a perspective view of the main part of FIG. 1, and FIG. -A cross-sectional view showing the column part of the beam connection joint, FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3, FIG. 5 is a view taken along line V-V in FIG. 4 is a cross-sectional view taken along the line VI-VI in FIG. 4, FIG. 7 shows a metal joint, (A) is a side view, (B) is a plan view, FIG. 8 shows a metal joint, (A) is a side view, B) is a plan view, FIG. 9 is a floor plan of the building of the present invention, FIG. 10 is a frame layout diagram of FIG. 9, FIG. 11 is a plan view showing a conventional example, and FIG. 12 is a column-beam joint of the second embodiment. FIG. 13A is an exploded perspective view, FIG. 13B is a cross-sectional view showing a column part of a column-beam joint, and FIG. 14 is a XIV-XIV of FIG. 15 is a cross-sectional view taken along line XV-XV in FIG. FIG. 16 is a cross-sectional view taken along XVI-XVI in FIG. 14, FIG. 17 shows a metal fitting, (A) is a side view, (B) is a plan view, (C) is a front view, and FIG. (A) is a side view, (B) is a plan view, (C) is a front view, FIG. 19 shows a force transmission state of a column-beam joint, and (A) is a column and a joint hardware. (B) is a schematic diagram which shows a beam and a joint metal fitting.
[0019]
First Embodiment (FIGS. 1 to 10)
The building 100 of FIG. 1 arranges two first frames 10A and 10B along the first direction (y direction) in parallel, and extends along the second direction (x direction) orthogonal to the first direction 4. The second frames 20A to 20D are arranged between the two first frames 10A and 10B, and the four second frames 20A to 20D are joined to the first frames 10A and 10B, respectively. Built. At this time, the first frames 10A and 10B are provided along the depth direction of the building 100, and the second frames 20B and 20C are joined to intermediate portions of the first frames 10A and 10B.
[0020]
Hereinafter, the joining joints of the first frames 10A and 10B and the second frames 20A and 20D will be described using the joining joint of the first frame 10A as a representative.
[0021]
The first frame 10 A has a rigid frame structure in which two columns 11 A and 11 B are rigidly joined to the beam 12. The pillars 11 A and 11 B are made of H-section steel and constitute the pillar of the building 100. The beam 12 is also made of H-section steel and constitutes a floor beam of the building 100.
[0022]
At this time, as shown in FIGS. 1 and 2, the first frame 10A is formed by rigidly joining the column bases (lower ends) of the columns 11A and 11B to the beam 12, and the direction of the back of the columns 11A and 11B (H The direction along the shape steel web) is arranged along the longitudinal direction of the beam 12, and the column bases of the columns 11 A and 11 B are placed within the flange width of the beam 12. As a result, the first frame 10A constitutes a unidirectional frame having resistance only in the longitudinal direction (y direction) of the beam 12, and the beam 12 has the second frame 20A in the x direction and the second frame 20A. It is not always necessary to provide a column at the corner portion joined to the frame 20D, and the columns 11A and 11B can be arranged at arbitrary positions in the y direction.
[0023]
The building 100 may be a structure in which a ceiling beam is rigidly connected to the column heads (upper end portions) of the columns 11A and 11B with a joint joint similar to that of the beam 12.
[0024]
Further, the joining joints of the second frames 20B and 20C will be described with the joining joint of the second frame 20B as a representative.
[0025]
The second frame 20B has a rigid frame structure in which the two columns 21A and 21B are rigidly joined to the beam 22. The columns 21 A and 21 B are made of H-section steel and constitute the column of the building 100. The beam 22 is also made of H-section steel and constitutes a floor beam of the building 100.
[0026]
At this time, as shown in FIGS. 1 and 2, the second frame 20 B is connected to the first frame 10 A as shown in FIGS. 1 and 2. The column base (lower end) of the column 21A having a height along the web of the first frame 10A is placed within the flange width of the beam 12 of the first frame 10A, and the back direction of the column 21A is along the longitudinal direction of the beam 22 Thus, the beam 22 of the second frame 20B and the column base of the column 21A were rigidly joined via the beam 12 of the first frame 10A. In addition, the second frame 20B has the column base (lower end) of the column 21B having a small size less than the width of the beam 12 of the first frame 10B at the junction with the first frame 10B. 1 is placed within the flange width of the beam 12 of the frame 10B, and the back direction of the column 21B is arranged along the longitudinal direction of the beam 22, and the beam 22 of the second frame 20B and the column base of the column 21B are The first frame 10B was rigidly joined through the beam 12. As a result, the second frame 20B constitutes a unidirectional ramen having a resistance only in the longitudinal direction (x direction) of the beam 22, and a column is formed inside the living room partitioned by the first frames 10A and 10B. 21A and 21B do not overhang.
[0027]
Note that the building 100 may be a structure in which a ceiling beam is rigidly connected to the column heads (upper end portions) of the columns 21A and 21B with a joint joint similar to that of the beam 22.
[0028]
Further, the second frame 20B employs the following reinforcing structure for the joint connection between the column 21A and the beam 22 (the same as the joint connection between the column 21B and the beam 22) (FIGS. 3 to 8). . Beams 12 of the first frame 10 A is sandwiched pillars 21A and beams 22, passing through the inside of the joint Joint pillars 21A and beams 22 to as obstacles.
[0029]
Reinforcing hardware 31 was provided on the column base rigidly joined to the beam 12 of the first frame 10A of the column 21A of the second frame 20B. As shown in FIGS. 3 and 4, the reinforcing hardware 31 is composed of a welded body of an L-shaped side plate 31 A and a flat bottom plate 31 B, and is welded and arranged at the intersection of each of the left and right flanges of the column 21 A and the web. The One side of the side plate 31A is welded to the flange, and the other side is welded to the web.
[0030]
Two joining hardware 41 and one joining hardware 42 were provided on the beam 12 of the first frame 10A.
[0031]
As shown in FIG. 7, the metal joint 41 includes a narrow flat plate mounting plate 41A attached to one side of the web of the beam 12, and a flat plate reinforcing plate 41B welded to both side edges of the mounting plate 41A. The upper and lower flat plate joining plates 41D and 41E are welded to the upper and lower ends of the mounting plate 41A and the reinforcing plates 41B and 41C, respectively. In the joining plates 41D and 41E, the tip portion protruding from the flange of the beam 12 is a joining portion for the beam 22 of the second frame 20B.
[0032]
As shown in FIG. 8, the metal joint 42 includes a wide flat plate mounting plate 42A attached to the other side of the web of the beam 12, a flat plate reinforcing plate 42B welded to the center of the mounting plate 42A, The plate-shaped reinforcing plate 42C is welded to both side edges of the plate 42A, and the upper and lower flat plate-shaped joining plates 42D and 42E are welded to the upper and lower ends of the mounting plate 42A and the reinforcing plates 42B and 42C, respectively.
[0033]
Accordingly, as shown in FIGS. 3 to 6, two pieces are provided on each side of the web of the beam 12 in the portion where the column 21 A and the beam 22 of the second frame 20 B of the beam 12 of the first frame 10 A are joined. The joint metal 41 and one joint metal 42 are attached, the attachment plates 41A and 42A of the joint hardware 41 and 42 are bolts 43 and nuts 43A to the web of the beam 12, and the lower joint plates 41 and 42 are joined. 41E and 42E are rigidly joined to the lower flange of the beam 12 with bolts 44 and 45 and nuts 44A and 45A (FIGS. 4 to 6). Next, the column base of the column 21A of the second frame 20B is placed on the upper flange of the beam 12, and the bottom plate 31B of the reinforcement hardware 31 provided on the column 21A, the upper flange of the beam 12, and the joint metal The upper joining plates 41D and 42D of 41 and 42 are rigidly joined to each other by bolts 46 and 47 and nuts 46A and 47A. Further, the upper and lower flanges of the beam 22 of the second frame 20B are inserted into the upper and lower joints 41D and 41E of the upper and lower joint plates 41 of the two joints 41, and these are bolts 48 and 49, nuts 48A, 49A is rigidly connected to each other. Thereby, the column 21A and the beam 22 of the second frame 20B are rigidly joined via the beam 12 of the first frame 10A.
[0034]
Therefore, the above-described column-beam joint structure of the building 100 has the following effects.
{Circle around (1)} In the second frame 20B, a column 21A having a small size spine is rigidly joined to the beam 22 of the second frame 20B via the beam 12 of the first frame 10A. Therefore, the column 21A having the small back of the second frame 20B is erected within the width of the beam 12 of the first frame 10A, and is stretched inside the living room partitioned by the beam 12 of the first frame 10A. It does not come out, but widens the effective use width and opening width of the room.
[0035]
(2) When the building 100 is long in the depth direction, it is necessary to join the second frame 20B to the middle portion of the first frame 10A provided along the depth direction because of the structural strength of the building 100. At this time, in order to ensure the structural strength of the building 100, the effective use width and the opening width of the living room are widened by the above-mentioned (1) while the second frame 20B is installed in the intermediate portion in the depth direction of the building 100. it can.
[0036]
(3) Since the metal joints 41 and 42 are provided on the beam 12 of the first frame 10A, the pillar 21A having the small back with the beam 22 of the second frame 20B through the presence of the metal joints 41 and 42. Can be firmly and rigidly joined.
[0037]
(4) Since the reinforcement hardware 31 is provided at the column end portion of the column 21A having the small back of the second frame 20B, the column 21A is connected to the second frame 20B via the beam 12 of the first frame 10A. The beam 22 can be firmly and rigidly joined.
[0038]
FIG. 9 shows a floor plan of the building 200, and FIG. 10 shows an arrangement example of the first frames 10A and 10B and the second frames 20A to 20D constituting the building 200. In the building 200 that is long in the depth direction, when the second frames 20B and 20C are joined to intermediate portions of the first frames 10A and 10B provided along the depth direction, the pillars 21A that constitute the second frames 20B and 20C , 21B is accommodated within the flange width of the beam 12 of the first frame 10A, 10B, the effective use width and the opening width of the building 200 can be widened.
[0039]
(Second Embodiment) (FIGS. 12 to 19)
In the second embodiment, as in the first embodiment, as shown in FIG. 12, the beam 22 and the column 21A of the second frame 20B are rigidly joined via the beam 12 of the first frame 10A. The following reinforcement structure is employed for the joints between the columns 21A and the beams 22 of the second frame 20B (the joints between the columns 21B and the beams 22 are the same) (FIGS. 13 to 18). The beam 12 is sandwiched between the column 21A and the beam 22 and penetrates through the joint connection between the column 21A and the beam 22 like an obstacle.
[0040]
Reinforcing hardware 51 was provided on the column base rigidly joined to the beam 12 of the first frame 10A of the column 21A of the second frame 20B. The reinforcement hardware 51 is configured in the same manner as the reinforcement hardware 31 of the first embodiment, and is composed of a welded body of an L-shaped side plate 51A and a flat bottom plate 51B as shown in FIGS. Each of the flanges is welded to the intersection of the web. One side of the side plate 51A is welded to the flange, and the other side is welded to the web.
[0041]
Two joint hardware 61 and two joint hardware 62 are provided on the beam 12 of the first frame 10A.
[0042]
As shown in FIG. 17, the joining hardware 61 is composed of a U-shaped plate-shaped mounting plate 61A attached to one side of the web of the beam 12 and upper and lower flat-plate joints welded to the upper and lower ends of the mounting plate 61A. It consists of plates 61B and 61C. The fitting 61 has the mounting plate 61A stored in the flange of the beam 12, and the bonding plates 61B and 61C welded to the mounting plate 61A project from the flange of the beam 12 to the beam 22 side of the second frame 20B. One side of the base of the protrusion of 61B and 61C extends linearly from the welded portion with one side of the mounting plate 61A, and the other side of the base of the protruding is oblique from the welded portion with the other side of the mounting plate 61A. The transmission of force from the mounting plate 61A to the joining plates 61B and 61C is made smooth. In the joining plates 61B and 61C, the tip portion protruding from the flange of the beam 12 is used as a joining portion for the beam 22 of the second frame 20B.
[0043]
As shown in FIG. 18, the joining hardware 62 includes a U-shaped plate-shaped mounting plate 62A attached to the other side of the web of the beam 12 and upper and lower flat-plate joints welded to the upper and lower ends of the mounting plate 62A. It consists of plates 62B and 62C.
[0044]
Accordingly, as shown in FIGS. 13 to 16, in the portion where the column 21 A and the beam 22 of the second frame 20 B of the beam 12 of the first frame 10 A are joined, each 2 Each of the joint hardware 61 and the joint hardware 62 is attached, and the attachment plates 61A and 62A of the joint hardware 61 and 62 are attached to the web of the beam 12 by the high strength bolt 63 and the nut 63A, and the lower joint plates of the joint hardware 61 and 62 are provided. 61C and 62C are rigidly joined to the lower flange of the beam 12 with high strength bolts 64 and 65 and nuts 64A and 65A (FIGS. 14 to 16).
[0045]
Next, the column base of the column 21A of the second frame 20B is placed on the upper flange of the beam 12, and the bottom plate 51B of the reinforcing hardware 51 provided on the column 21A, the upper flange of the beam 12, and 2 The upper joining plates 61B and 62B of the joining hardware 61 and 62 are rigidly joined to each other by high strength bolts 66 and 67 and nuts 66A and 67A.
[0046]
Further, the upper and lower flanges of the beam 22 of the second frame 20B are inserted into the upper and lower joints 61B and 61C of the upper and lower joining plates 61B and 61C of the two joining hardware 61, and these are the high strength bolts 68 and 69, nuts. 68A and 69A are rigidly joined to each other. Thereby, the column 21A and the beam 22 of the second frame 20B are rigidly joined via the beam 12 of the first frame 10A.
[0047]
Hereinafter, the joining conditions of the column-beam joint according to the second embodiment will be described.
(A) A tensile force P obtained by dividing the moment CM applied to the end of the column 21A by the distance d between the high strength bolts 66 and 67 acts on the joint between the beam 12 and the column 21A. The beam 12, the joining hardware 61 and 62, and the reinforcing hardware 51 are rigidly joined by tensile joining using high-strength bolts 66 and 67 so that a force greater than the tensile force P can be expressed.
[0048]
(B) A shearing force CQ obtained by dividing the moment CM applied to the end of the column 21A by the spine CH of the column 21A acts on the joint between the beam 12 and the column 21A. The metal fittings 61 and 62 are rigidly bonded by friction bonding using high-strength bolts 66 and 67 through the web of the beam 12 so that a force larger than the shearing force CQ can be expressed. At this time, the proof stress of the beam 12 (proof strength against the shearing force CQ) may be used.
[0049]
(C) A shearing force BQ obtained by dividing the moment BM applied to the end of the beam 22 by the back BH of the beam 22 acts on the joint between the beam 12 and the beam 22. The beam 22 and the joining hardware 61 are rigidly joined by friction joining using high strength bolts 68 and 69 so that a force larger than the shearing force BQ can be expressed.
[0050]
Therefore, according to the column-beam junction structure of the second embodiment, there are the following actions.
(1) In the second frame 20B, a column 21A having a small-sized spine is rigidly joined to the beam 22 of the second frame 20A via the beam 12 of the first frame 10A. Therefore, the column 21A having the small back of the second frame 20B is erected within the width of the beam 12 of the first frame 10A, and is stretched inside the living room partitioned by the beam 12 of the first frame 10A. It does not come out, but widens the effective use width and opening width of the room.
[0051]
(2) When the building 100 is long in the depth direction, it is necessary to join the second frame 20B to the middle portion of the first frame 10A provided along the depth direction because of the structural strength of the building 100. At this time, in order to ensure the structural strength of the building 100, the effective use width and the opening width of the living room are widened by the above-mentioned (1) while the second frame 20B is installed in the intermediate portion in the depth direction of the building 100. it can.
[0052]
(3) Since the metal fittings 61 and 62 are provided on the beam 12 of the first frame 10A, the beam 21 of the second frame 20A and the column 21A having a small-sized spine are strengthened through the presence of the metal fittings. Can be rigidly joined.
[0053]
(4) Since the reinforcement hardware 51 is provided at the column end portion of the column 21A having the small back of the second frame 20B, the column 21A is connected to the second frame 20A via the beam 12 of the first frame 10A. The beam 22 can be firmly and rigidly joined.
[0054]
(5) A column having a small-sized spine by rigidly joining the reinforcing hardware 51 and the joining hardware 61, 62 of the pillar 21A by tensile joining using high-strength bolts 66, 67 through the beam 12 of the first frame 10A. A force greater than the tensile force P caused by the moment CM applied to 21A can be expressed. Therefore, the joint between the column 21A and the metal fittings 61, 62 is not opened until the column 21A yields, and the elements constituting the joint are obstructed, such as the breakage of the high-strength bolts 66, 67 until the column 21A reaches full plasticity. Does not occur.
[0055]
(6) The metal fitting 61 and the metal fitting 62 are rigidly joined by friction welding using high-strength bolts 66 and 67 through the web of the beam 12 of the first frame 10A, and added to the column 21A having a small size back. A force greater than the shearing force CQ caused by the moment CM can be expressed. Therefore, the junction between the column 21A and the beam 12 of the first frame 10A does not yield until the column 21A yields, and the junction between the column 21A and the beam 12 of the first frame 10A does not yield until the column 21A reaches full plasticity. No shear fracture.
[0056]
(7) The joining hardware 61 and the beam 22 of the second frame 20B are rigidly joined by friction joining using the high-strength bolt 61, and the shearing force BQ caused by the moment BM applied to the beam 22 of the second frame 20B is larger. I was able to express force. Therefore, the joint portion between the beam 12 of the first frame 10A and the beam 22 of the second frame 20B does not undergo shear fracture until the column 21A reaches full plasticity.
[0057]
Although the embodiment of the present invention has been described in detail with reference to the drawings, 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.
[0058]
【The invention's effect】
As described above, according to the present invention, the effective use width and the opening width of a living room can be widened in a building formed by joining the frames of the first and second frame structures.
[Brief description of the drawings]
FIG. 1 shows a structure of a building according to the present invention, (A) is an overall plan view, and (B) is an enlarged plan view of a main part.
FIG. 2 is a perspective view of a main part of FIG.
FIG. 3 is a cross-sectional view showing a column portion of a column-beam joint joint cut away.
4 is a cross-sectional view taken along the line IV-IV in FIG. 3;
5 is an arrow view taken along the line VV in FIG. 3. FIG.
6 is a cross-sectional view taken along line VI-VI in FIG.
7A and 7B show a metal joint, FIG. 7A is a side view, and FIG. 7B is a plan view.
8A and 8B show a metal fitting, FIG. 8A is a side view, and FIG. 8B is a plan view.
FIG. 9 is a floor plan of a building according to an example of the present invention.
FIG. 10 is a frame layout diagram of FIG. 9;
FIG. 11 is a plan view showing a conventional example.
FIGS. 12A and 12B show a column-beam joint joint according to a second embodiment, wherein FIG. 12A is an exploded perspective view and FIG. 12B is an assembled perspective view.
FIG. 13 is a cross-sectional view showing a column portion of a column-beam joint joint cut.
14 is a cross-sectional view taken along line XIV-XIV in FIG.
FIG. 15 is a view taken along the line XV-XV in FIG. 13;
16 is a cross-sectional view taken along the line XVI-XVI of FIG.
FIGS. 17A and 17B show a metal fitting, FIG. 17A is a side view, FIG. 17B is a plan view, and FIG. 17C is a front view;
18A and 18B show a metal joint, FIG. 18A is a side view, FIG. 18B is a plan view, and FIG. 18C is a front view.
19A and 19B show a force transmission state of a column-beam joint, and FIG. 19A is a schematic diagram showing columns and joint hardware, and FIG. 19B is a schematic diagram showing beams and joint hardware.
[Explanation of symbols]
100, 200 Building 10A, 10B First frame (one frame)
11A, 11B Pillar 12 Beams 20A to 20D Second frame (the other frame)
21A, 21B Column 22 Beam 31, 51 Reinforcement hardware 41, 42, 61, 62 Bonding hardware 63-69 High-strength bolt

Claims

In the structure of a building in which a frame of a rigid frame structure in which a column and a beam are rigidly connected is provided along each of the first and second directions orthogonal to each other, and the frames orthogonal to each other are connected,
A pillar with a small dimension less than the width of the beam made of the shape steel of one frame is installed in the one frame, and a pillar with a beam flange made of the shape steel of the other frame and the pillar with the small dimension above And the other frame is rigidly joined via a flange of a beam made of the shape steel of the one frame and a joint metal to construct the other frame.

The building structure according to claim 1, wherein the one frame is provided along a depth direction of the building, and the other frame is joined to an intermediate portion of the one frame.

The building structure according to any one of the small dimensions back of the one frame pillars with beams rigidly joined by a reinforced hardware provided in column end portion of claim 1 or 2.

The reinforcing metal provided at the column end of the column with the small back and the joint metal are rigidly joined with a high strength bolt, and the beam of the other frame and the joint hardware are rigidly joined with a high strength bolt, Tensile joint using the high-strength bolts to the pillar and the joint hardware through the beam of the one frame so that a force larger than the tensile force caused by the moment applied to the pillar having the small dimension can be expressed. Friction bonding using the high-strength bolt to the beam of the one frame and the metal fitting so that a force greater than the shearing force caused by the moment applied to the column with the small size can be expressed. The high-strength bolt is used for the joint metal and the beam of the other frame so that a force greater than the shearing force caused by the moment applied to the beam of the other frame can be expressed. The building structure according to claim 3, rigidly joined by friction bonding.