JP4456207B2

JP4456207B2 - Bonding structure of wall panel and upper floor panel and unit building

Info

Publication number: JP4456207B2
Application number: JP28469299A
Authority: JP
Inventors: 裕之鈴木; 信星; 完二森; 泰宏余田
Original assignee: Sekisui Chemical Co Ltd
Current assignee: Sekisui Chemical Co Ltd
Priority date: 1999-02-25
Filing date: 1999-10-05
Publication date: 2010-04-28
Anticipated expiration: 2019-10-05
Also published as: JP2001065060A

Description

【０００１】
【発明の属する技術分野】
本発明は、壁パネルと上階床パネルとの接合構造及びユニット建物に関する。
【０００２】
【従来の技術】
従来、枠組み壁工法の建物は第１０図に示すようにして完成される（従来技術１）。即ち、基礎１に土台２をアンカーボルト３で固定し、この上に根太４を配置して釘５を斜め打ちして固定して床枠組みを形成させ、その上に床板６を張ることにより床パネルとなし、この床パネルの上に上枠７、下枠８、縦枠９が組まれた壁枠組みを有する壁パネルを、その下枠８において釘５で固定することにより立設させ、この壁パネルの上枠７の上に根太を掛け渡し前述と同様にして２階の床パネルを形成、固定させるという順序で作業が進められる。
【０００３】
そして住宅の工業生産化の一方式として建物ユニットの方式があり、この建物ユニット方式を前述の枠組み壁工法に適用して床パネルに壁パネルを立設して箱形になした建物ユニットを工場で組み立て、その複数個を建築現場で据え付ける方法を採ろうとすると、建物ユニットの基礎への固定や１階の建物ユニットと２階の建物ユニットとの接合が面倒なものとなる。即ち土台と１階の建物ユニットの床パネルの根太との固定あるいは、１階の建物ユニットの壁パネルの上枠と２階の建物ユニットの床パネルの根太との固定を釘打ちによって行おうとしても、前述のように下から順次組み立てていく在来工法と異なり、床梁や壁枠に面材が予め張設されているので、これらが邪魔になるのである。
【０００４】
そのため、図９に示すように、現場据え付け時に、予め下階建物ユニットの壁パネル１６の上枠１８から突出するボルト３１を設けておき、上階建物ユニットの床パネル１０の下枠２２には貫通孔２４がボルト３１を通し易くするためボルト径より大きくして設けられ、容易に固定作業ができるようになされている（従来技術２）。尚、１２は根太、１５は床面材、１７は縦枠、２５、２６は面材、３０はナットである。
【０００５】
【発明が解決しようとする課題】
然しながら、上記従来技術２では、貫通孔２４がボルト径より大きくなされているが、座金２９で締めつけることによって水平方向の力Ｈｐによる変位を防止している。しかしながら、今後、建物の大型化高層化が要求され、それに伴って水平方向の力Ｈｐも極大化すると、この間隙だけ変位を生じ得るという問題がある。
【０００６】
本発明は、上記問題点に鑑みてなされたものであって、建物ユニット等を構成する壁パネルと上階床パネルとの接合において極めて大きな水平方向の力を受けても変位量の少ない接合構造と、この接合構造で組み立てられたユニット建物を提供するものである。
【０００７】
【課題を解決するための手段】
本発明は、上枠、下枠及び縦枠が組まれて壁枠組が形成されている壁パネルの上枠上面にボルトの先端が突出され、根太が組まれて床枠組みが形成されている上階床パネルの側縁の根太の下面に上記上枠と接合される枠材が取り付けられ、この枠材に予め設けられた貫通孔に上記ボルトを挿通せしめ、ボルトにナットを螺入することで、上枠と枠材とを締結してなる壁パネルと上階床パネルとの接合構造である。
【０００８】
そして、貫通孔にボルトを挿通可能で、かつ外径が貫通孔内径に略等しい筒状金具が取り付けられ、筒状金具の下端部に突起が形成され、この突起が上枠上面に突き刺されていることを特徴とする。
【０００９】
ここで、前記筒状金具が上面に外径より大きなつばを有していることを特徴とすることができる。
【００１０】
また、前記筒状金具の下端部に、全外周に連続的なテーパー加工１と、更に外周方向に不連続的にテーパー１より大きい角度になされたテーパー加工２とが施されて上記突起が形成されていることを特徴とする。
【００１１】
さらに、前記筒状金具の下端部に、全内周に連続的なテーパー加工１と、更に内周方向に不連続的にテーパー１より大きい角度になされたテーパー加工２とが施されて上記突起が形成されていることを特徴とする。
【００１２】
また、前記筒状金具の下端部に、複数の突起が形成され、この突起と突起との間に筒に平行で一定長さの切り込みがなされていることを特徴とする。
【００１３】
上記筒状金具は、木材の接合金具であって、つば付き筒状金具の場合はつばは大きい程水平方向の力Ｈｐを受けても変位量の少ない接合構造とすることができる。床パネルの下枠（頭つなぎ）上面の範囲までつばの外径が大きく（例えば、つばの最大外径８９ｍｍ）とも良い。又、筒状金具の下端部の突起は上枠上面に突き刺さって、水平方向の力Ｈｐを受けても変位量の少ない接合構造とするために、確実に木材に食い込む形状であることが好ましく、複数の鋭い突起を有する事が好ましい。
【００１６】
また、本発明は、上記の壁パネルと上階床パネルとの接合構造によって下階ユニットの壁パネルと上階ユニットの床パネルとが接合されてなるユニット建物である。
【００１７】
【作用】
壁パネルの上枠上面にボルトの先端が突出され、上階床パネルの側縁の根太の下面に上記上枠と接合される枠材に予め設けられた貫通孔に上記ボルトを挿通せしめ、ボルトにナットを螺入することで、上枠と枠材とを締結してなる壁パネルと上階床パネルとの接合構造であって、ボルトと貫通孔との間隙を接着剤で充填固化してあれば、極めて大きな水平の力を受けても変位量が少ない。
【００１８】
これに対して本発明によれば、壁パネルの上枠上面にボルトの先端が突出され、上階床パネルの側縁の根太の下面に上記上枠と接合される枠材に予め設けられた貫通孔に上記ボルトを挿通せしめ、ボルトにナットを螺入することで、上枠と枠材とを締結してなる壁パネルと上階床パネルとの接合構造であって、貫通孔に筒状の金具を挿入し、筒状の金具の下端の突起が壁上枠に突き刺さって固定され、筒状の金具の外径が貫通孔の内径と略等しいので、上枠と枠材が更に固定され、極めて大きな水平の力を受けても変位量が少ない。
【００１９】
また、前記筒状の金具が上面に外径より大きなつばを有していれば、水平方向の力Ｈｐを受けてもつばが床パネルの下枠（頭つなぎ）上面から受ける反力が働くので、より確実に変位量を少なくすることができる。
【００２０】
さらに、前記筒状金具の下端部に、全外周に連続的なテーパー加工１と、更に外周方向に不連続的にテーパー１より大きい角度になされたテーパー加工２とが施されて上記突起が形成されていれば、鋭い突起が形成され、上枠上面に確実に突き刺ささり、水平方向の力Ｈｐを受けても変位量が少ない。
【００２１】
また、前記筒状金具の下端部に、全内周に連続的なテーパー加工１と、更に内周方向に不連続的にテーパー１より大きい角度になされたテーパー加工２とが施されて上記突起が形成されていれば、鋭い突起が形成され、上記と同様な作用効果が得られる。
【００２２】
さらに、前記筒状金具の下端部に、複数の突起が形成され、この突起と突起との間に筒に平行で一定長さの切り込みがなされていれば、貫通孔に挿通しやすく、上枠上面に突き刺さる際に切り込みの弾性変形により、その後の保持力が持続し、より確実に変位量を少なくすることができる。
【００２４】
さらに、上記の壁パネルと上階床パネルとの接合構造によって下階ユニットの壁パネルと上階ユニットの床パネルとが接合されてなるユニット建物であるので、地震等の災害に強いユニット建物が得られる。
【００２５】
【発明の実施の形態】
図１は本発明が適用される建物ユニットを示す一部破断斜視図、図２（イ）は第１実施形態により構築されたユニット建物の斜視図、図２（ロ）はＡ−Ａ線の一部切り欠き垂直断面図、図３（イ）は第２実施形態（Ｉ）を示す壁パネル上枠と上階床パネル枠材の接合構造を示す部分模式図、図３（ロ）はその部分断面図、図４（イ）は第２実施形態の別の例（ＩＩ）を示す筒状の金具の斜視図、図４（ロ）は平面図、図４（ハ）及び（ニ）は側面図、図４（ホ）は壁パネル上枠と上階床パネル枠材の接合構造を示す部分断面図、図５（イ）は第２実施形態の更に別の例（ＩＩＩ）を示す筒状の金具の下端部平面図、図５（ロ）は側面図、図５（ハ）は図５（イ）のａ−ａ線断面図、図５（ニ）は図５（イ）のｂ−ｂ線断面図、図６（イ）は第２実施形態の更に別の例（ＩＶ）を示す筒状の金具の下端部平面図、図６（ロ）は側面図、図６（ハ）は図６（イ）のｃ−ｃ線断面図、図６（ニ）は図６（イ）のｄ−ｄ線断面図、図７（イ）は第２実施形態の更に別の例（Ｖ）を示す筒状の金具の斜視図、図７（ロ）は第２実施形態の更に別の例（ＶＩ）を示す筒状の金具の斜視図、図８（イ）は第３実施形態の壁パネル上枠と上階床パネル枠材の接合構造を示す部分模式図、図８（ロ）はその部分断面図である。
【００２６】
（建物ユニット）建物ユニットＴは、図１に示す如く、床パネル１０は根太１１，１１，・・・と最外縁の側根太１２，１２に直交してその木口と突きつけの状態で端根太１３，１３が釘打ちされて矩形状の枠組みとされ、さらに根太１１，１１・・・及び側根太１２，１２の相互間に受け材１４，１４・・・も取り付けられて床枠組みが構成され、この床枠組みの上面に構造用合板やパーティクルボード等の面材１５が取り付けられて構成されている。１６，１６，１６は壁パネルであり、床パネル１０の側縁に沿って立設されている。図１では壁パネル１６は床パネル１０の三方に立設されているが、建物ユニットが建物のどの箇所を構成するかに応じて立設され、かつ少なくとも一対の相対向する側縁に沿って立設される。
【００２７】
壁パネル１６は、縦枠１７，１７・・・の上端と下端の各々においてこれらの木口と突きつけの状態で上枠１８と下枠１９が各々釘打ちされて壁枠組みとされ、この内面及び外面の両側に石膏ボードや木片セメント板等の面材が取り付けられ、それらの面材の外面は各々内装外装の仕上げも施され、さらに内部に必要に応じて断熱材が充填されて構成される。又、これらの壁パネル１６には必要に応じて出入り口や窓等の開口部が形成される。
【００２８】
（第１実施形態（参考））図２（イ）は第１実施形態により構築されたユニット建物の斜視図を示す。工場で生産された建物ユニットＴ1,Ｔ２は建築現場に輸送され、予め敷設された基礎１の上に据え付け、この上に屋根ユニット３５を取り付け、種々な仕上げを行ってユニット建物Ｕが完成する。
【００２９】
図２（ロ）は上記ユニット建物ＵのＡ−Ａ線の一部切り欠き垂直断面図であり、第１実施形態の接合構造を示す。即ち、下階壁パネル１６ａは上枠１８ａの下面から予め外径１６ｍｍの接合ボルト３１を螺着して上枠１８ａの上面よりも突出させておき、この接合ボルト３１が上階床パネル１０ａの頭つなぎ（上枠と接合される枠材）２２に設けられたボルト径より大きい径を有する内径３０ｍｍの貫通孔２４に挿通されるように位置決めして載置される。そして、接合ボルト３１と貫通孔２４との間の隙間に一液型の湿気硬化性ポリウレタン系接着剤４０で充填し、その後座金２９ｂ及びナット３０によって緊結されることにより下階壁パネル１６ａと上階床パネル１０ａとが固定される。尚１０ｂは床パネルであり下階壁パネル１６ａと生産工場で予め一体になされている。１２ａ、１２ｂは床根太、１５ａ、１５ｂは床面材、１７ａは縦枠、１９ａは下枠、２５ａは内面材、２６ａは外面材をそれぞれ表す。
【００３０】
上記接合ボルト３１と貫通孔２４との間の隙間に充填した一液型の湿気硬化性ポリウレタン系接着剤４０は空気中の湿気により硬化すると、隙間が硬質物で充填されることになるので建物ユニット間に極めて大きな水平の力が懸かっても変位量の少ない躯体構造が得られる。
【００３１】
（第２実施形態Ｉ）図３（イ）は第２実施形態Ｉを示す壁パネル上枠と上階床パネル枠材の接合構造を示す部分模式図、図３（ロ）はその部分断面図を示す。第１実施形態と同様にして、下階壁パネルの上枠１８ｃの下面から予め外径１６ｍｍの接合ボルト３１を螺着して上枠１８ｃの上面よりも突出させておき、この接合ボルト３１が上階床パネルの頭つなぎ（上枠と接合される枠材）２２ｃに設けられたボルト径より大きい径を有する内径３０ｍｍの貫通孔２４ｃに挿通されるように位置決めして載置される。そして、接合ボルト３１と貫通孔２４ｃとの間の隙間に、貫通孔２４の内径と略等しい外径の筒状の金具４１を挿通する。次いで座金２９ｂとナット３０により緊結する。この時、ナット３０の締め付けにより、筒状の金具４１は押し下げられ、上枠１８ｃの上面から筒状の金具４１の下側の突起４２が食い込む。
【００３２】
上記接合ボルト３１と貫通孔２４ｃとの間の隙間に、貫通孔２４ｃの内径と略等しい外径の筒状の金具４１を挿通し上枠１８ｃの上面から筒状の金具４１の下側の突起４２を食い込ませ、次いで座金２９ｂとナット３０により緊結されているので堅牢な接合構造となり、建物ユニット間に極めて大きな水平の力が懸かっても変位量の少ない躯体構造が得られる。即ち、筒状の金具４１の突起４２が上枠１８ｃに突き刺さっているので、筒状の金具４１と上枠１８ｃとは変位せず、また筒状の金具４１の外径が頭つなぎ２２ｃの貫通孔の内径と略等しいので筒状の金具４１と頭つなぎ２２ｃとは変位しない。よって、上枠１８ｃと頭つなぎ２２ｃとは変位しないから、その結果、変位量の少ない躯体構造が得られる。
【００３３】
（第２実施形態ＩＩ）図４（イ）は筒状の金具の別の実施例を示し、つば４１１Ａ付き筒状の金具４１Ａである。つばの外径は３８ｍｍであり、筒状の金具４１Ａの外径は２９ｍｍ、内径は２５ｍｍ、厚み２ｍｍである。筒状の金具４１Ａの下端部４２Ａは図４（ハ）に示すように、周方向に連続して４ｍｍ巾のテーパー１（角度３０度）を有し、次いで図４（ニ）に示すように周方向に不連続に６ヵ所、角度４５度で切削し突起４２３Ａを形成する。図４（ホ）は上記筒状の金具４１Ａを用いた壁パネル上枠と上階床パネル枠材の接合構造を示す部分断面図を示す。第２実施形態と同様のものには同番号を付し、説明を省略する。本実施例は第２実施形態Ｉと比較すると筒状の金具４１Ａのみが異なる。筒状の金具４１Ａはつば４１１Ａを有しているので、ナット３０の締め付けにより、確実に頭つなぎ（上枠と接合される枠材）２２ｃに押し下げられ、更に、上枠１８ｃの上面から筒状の金具４１Ａの下側の突起４２Ａが食い込む。
【００３４】
上記接合ボルト３１と貫通孔２４ｃとの間の隙間に、貫通孔２４ｃの内径３０ｍｍと略等しい外径２９ｍｍのつば付き４１１Ａ筒状の金具４１Ａを挿通し上枠１８ｃの上面から筒状の金具４１Ａの下側の突起４２Ａを食い込ませ、次いで座金２９ｂとナット３０により緊結されているのでより堅牢な接合構造となり、建物ユニット間に極めて大きな水平の力が懸かっても変位量の少ない躯体構造が得られる。即ち、つば付き４１１Ａ筒状の金具４１Ａの突起４２Ａが上枠１８ｃに突き刺さっているので、筒状の金具４１Ａと上枠１８ｃとは変位せず、また筒状の金具４１Ａのつば４１１Ａが頭つなぎ２２ｃの上面からの反力により、筒状の金具４１Ａの動きを抑え、又外径が２９ｍｍで頭つなぎ２２ｃの貫通孔の内径３０ｍｍと略等しいので筒状の金具４Ａ１と頭つなぎ２２ｃとは変位しない。よって、上枠１８ｃと頭つなぎ２２ｃとは変位しないから、その結果、より変位量の少ない躯体構造が得られる。
【００３５】
（第２実施形態ＩＩＩ）図５（イ）、（ロ）はさらに別の筒状の金具４１Ｂの実施例を示し、筒状の金具４１Ｂの下端部に突起を形成する方法を示している。即ち、テーパー１の加工を行い図５（ハ）に示すように、図５（イ）のａ−ａ線断面が、内径４１２Ｂ面が高く、外径４１１Ｂ面が低くなるように、外周方向にテーパー加工され、テーパー４２１Ｂを得る。テーパー４２１Ｂ面と内径４１２Ｂ面とのなす角度は３０度になされている。次いで、外周方向に不連続的に６ヵ所、角度４５度で切削しテーパー４２２Ｂ面を得る。図５（ニ）に示すように、図５（イ）のｂ−ｂ線断面において、テーパー４２２Ｂ面と内径４１２Ｂ面とのなす角度は４５度になされている。その結果鋭い突起４２３Ｂが６箇所得られる。
【００３６】
即ち、上記に示す方法により、筒状の金具４１Ｂに鋭い突起４２３Ｂが低コストで容易に得られる。そのため、筒状の金具４１Ｂに鋭い突起４２３Ｂが上枠１８ｃに確実に突き刺さるので、筒状の金具４１Ｂと上枠１８ｃとは変位せず、また筒状の金具４１Ｂの外径が頭つなぎ２２ｃの貫通孔の内径と略等しいので筒状の金具４１Ｂと頭つなぎ２２ｃとは変位しない。よって、上枠１８ｃと頭つなぎ２２ｃとは変位しないから、その結果、より変位量の少ない躯体構造が得られる。
【００３７】
（第２実施形態ＩＶ）図６（イ）、（ロ）はさらに別の筒状の金具４１Ｃの実施例を示し、筒状の金具４１Ｃの下端部に突起を形成する方法を示している。即ち、テーパー１の加工を行い図５（ハ）に示すように、図６（イ）のｃ−ｃ線断面が、内径４１２Ｃ面が低く、外径４１１Ｃ面が高くなるように、内周方向にテーパー加工され、テーパー４２１Ｃを得る。テーパー４２１Ｃ面と内径４１２Ｃ面とのなす角度は３０度になされている。次いで、内周方向に不連続的に６ヵ所、角度４５度で切削しテーパー４２２Ｃ面を得る。図６（ニ）に示すように、図６（イ）のｄ−ｄ線断面において、テーパー４２２Ｃ面と内径４１２Ｃ面とのなす角度は４５度になされている。その結果鋭い突起４２３Ｃが６箇所得られる。
【００３８】
即ち、上記に示す方法により、筒状の金具４１Ｃに鋭い突起４２３Ｃが低コストで容易に得られる。そのため、筒状の金具４１Ｃに鋭い突起４２３Ｃが上枠１８ｃに確実に突き刺さり、且つ突き刺さるときに、逆テーパーによりボルト穴を圧縮する方向に力が働き、よりボルト固定力が向上するので、筒状の金具４１Ｃと上枠１８ｃとは変位せず、また筒状の金具４１Ｃの外径が頭つなぎ２２ｃの貫通孔の内径と略等しいので筒状の金具４１Ｃと頭つなぎ２２ｃとは変位しない。よって、上枠１８ｃと頭つなぎ２２ｃとは変位しないから、その結果、より変位量の少ない躯体構造が得られる。
【００３９】
（第２実施形態Ｖ，ＶＩ）図７（イ）、（ロ）はさらに別の筒状の金具４１Ｄ（第２実施形態Ｖ），４１Ｅ（第２実施形態ＶＩ）の実施例を示している。筒状の金具４１Ｄと筒状の金具４１Ｅとは、筒状の金具４１Ｄに鍔４２３Ｄを有している以外は同じであるので、筒状の金具４１Ｄについて説明する。筒状の金具４１Ｄの下端部には複数の突起４２１Ｄが形成され、この突起４２１Ｄと突起４２１Ｄとの間に筒に平行で一定長さの切り込み４２２Ｄがなされている。その結果、突起４２１Ｄは弾性変形することが可能である。
【００４０】
即ち、上記に示す方法により、筒状の金具４１Ｄ、又は４１Ｅに弾性変形可能な突起４２３Ｄ（又は４２３Ｅ）が形成される。そのため、頭つなぎ２２ｃの貫通孔に挿通する際の抵抗が低減し、上枠１８ｃに突き刺さる際に生じる切り込み４２２Ｄの弾性変形により突き刺さり保持力の持続性が増し、その結果、より変位量の少ない躯体構造が得られる。
【００４１】
（第３実施形態（参考））図８（イ）は第３実施形態を示す壁パネル上枠と上階床パネル枠材の接合構造を示す部分模式図、図８（ロ）はその部分断面図を示す。第１実施形態と同様にして、下階壁パネルの上枠１８ｄの下面から予め外径１６ｍｍの接合ボルト３１を螺着して上枠１８ｄの上面よりも突出させておき、この接合ボルト３１が上階床パネルの頭つなぎ（上枠と接合される枠材）２２ｄに設けられたボルト径より大きい径を有する内径３０ｍｍの貫通孔２４ｄに挿通されるように位置決めして載置される。そして、ナット３０と頭つなぎ（上枠と接合される枠材）２２ｄの間にジベルプレート４３を介在させ、ジベルプレート４３のボルト挿通孔４４に接合ボルト３１を挿通しナット３０により緊結する。そのため、ジベルプレート４３の突起４５が上階床パネルの頭つなぎ（上枠と接合される枠材）に食い込み上枠と頭つなぎが強固に固定される。
【００４２】
上記ジベルプレート４３のボルト挿通孔４４はボルト径と略等しく、またジベルプレート４３の突起４５が上階床パネルの頭つなぎ（上枠と接合される枠材）に食い込んで固定されるので、堅牢な接合構造となり、建物ユニット間に極めて大きな水平の力が懸かっても変位量の少ない躯体構造が得られる。即ち、上枠１８ｄのボルト挿通孔はボルト径と略等しいので、両者は変位せず、ジベルプレート４３のボルト挿通孔４４はボルト径と略等しいので、両者は変位せず、ジベルプレート４３は頭つなぎ２２ｄに突き刺さっているので、両者は変位しない。よって上枠１８ｄと頭つなぎ２２ｄとは変位しないから、その結果、変位量の少ない躯体構造が得られる。
【００４３】
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。
【００４４】
【発明の効果】
壁パネルの上枠上面にボルトの先端が突出され、上階床パネルの側縁の根太の下面に上記上枠と接合される枠材に予め設けられた貫通孔に上記ボルトを挿通せしめ、ボルトにナットを螺入することで、上枠と枠材とを締結してなる壁パネルと上階床パネルとの接合構造であって、ボルトと貫通孔との間隙を接着剤で充填固化してあれば、極めて大きな水平の力を受けても変位量が少ない。
【００４５】
これに対して本発明によれば、壁パネルの上枠上面にボルトの先端が突出され、上階床パネルの側縁の根太の下面に上記上枠と接合される枠材に予め設けられた貫通孔に上記ボルトを挿通せしめ、ボルトにナットを螺入することで、上枠と枠材とを締結してなる壁パネルと上階床パネルとの接合構造であって、貫通孔に筒状の金具を挿入し、筒状の金具の下端の突起が壁上枠に突き刺さって固定され、筒状の金具の外径が貫通孔の内径と略等しいので、上枠と枠材が更に固定され、極めて大きな水平の力を受けても変位量が少ない。
【００４６】
また、前記筒状の金具が上面に外径より大きなつばを有しているので、水平方向の力Ｈｐを受けてもつばが床パネルの下枠（頭つなぎ）上面から受ける反力が働くので、より確実に変位量を少なくすることができる。
【００４７】
さらに、前記筒状金具の下端部に、全外周に連続的なテーパー加工１と、更に外周方向に不連続的にテーパー１より大きい角度になされたテーパー加工２とが施されて上記突起が形成されているので、鋭い突起が形成され、上枠上面に確実に突き刺ささり、水平方向の力Ｈｐを受けても変位量が少ない。
【００４８】
また、前記筒状金具の下端部に、全内周に連続的なテーパー加工１と、更に内周方向に不連続的にテーパー１より大きい角度になされたテーパー加工２とが施されて上記突起が形成されているので、鋭い突起が形成され、上記と同様な作用効果が得られる。
【００４９】
さらに、前記筒状金具の下端部に、複数の突起が形成され、この突起と突起との間に筒に平行で一定長さの切り込みがなされているので、貫通孔に挿通しやすく、上枠上面に突き刺さる際に切り込みの弾性変形により、その後の保持力が持続し、より確実に変位量を少なくすることができる。
【００５１】
さらに、上記の壁パネルと上階床パネルとの接合構造によって下階ユニットの壁パネルと上階ユニットの床パネルとが接合されてなるユニット建物であるので、地震等の災害に強いユニット建物が得られる。
【図面の簡単な説明】
【図１】本発明が適用される建物ユニットを示す一部破断斜視図である。
【図２】（イ）は第１実施形態により構築されたユニット建物の斜視図、（ロ）はＡ−Ａ線の一部切り欠き垂直断面図である。
【図３】（イ）は第２実施形態（Ｉ）を示す壁パネル上枠と上階床パネル枠材の接合構造を示す部分模式図、（ロ）はその部分断面図である。
【図４】（イ）は第２実施形態の別の例（ＩＩ）を示す筒状の金具の斜視図、（ロ）は平面図、（ハ）及び（ニ）は側面図、（ホ）は壁パネル上枠と上階床パネル枠材の接合構造を示す部分断面図である。
【図５】（イ）は第２実施形態の更に別の例（ＩＩＩ）を示す筒状の金具の下端部平面図、（ロ）は側面図、（ハ）は（イ）のａ−ａ線断面図、（ニ）は（イ）のｂ−ｂ線断面図である。
【図６】（イ）は第２実施形態の更に別の例（ＩＶ）を示す筒状の金具の下端部平面図、（ロ）は側面図、（ハ）は（イ）のｃ−ｃ線断面図、（ニ）は（イ）のｄ−ｄ線断面図である。
【図７】（イ）は第２実施形態の更に別の例（Ｖ）を示す筒状の金具の斜視図、（ロ）は第２実施形態の更に別の例（ＶＩ）を示す筒状の金具の斜視図である。
【図８】（イ）は第３実施形態の壁パネル上枠と上階床パネル枠材の接合構造を示す部分模式図、（ロ）はその部分断面図である。
【図９】従来技術２による接合構造を示す一部切り欠き垂直断面図である。
【図１０】従来技術１による接合構造を示す一部切り欠き垂直断面図である。
【符号の説明】
Ｔ，Ｔ１，Ｔ２建物ユニット
Ｕユニット建物
１０，１０ａ，１０ｂ床パネル
１６，１６ａ壁パネル
１８，１８ａ，１８ｃ，１８ｄ上枠
１９，１９ａ下枠
２２，２２ｃ，２２ｄ頭つなぎ（上枠と接合する枠材）
２９ａ，２９ｂ座金
３０ナット
３１接合ボルト
４０接着剤
４１，４１Ａ，４１Ｂ，４１Ｃ，４１Ｄ，４１Ｅ筒状の金具
４３ジベルプレート[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a joint structure between a wall panel and an upper floor panel and a unit building.
[0002]
[Prior art]
Conventionally, a frame wall construction building is completed as shown in FIG. 10 (Prior Art 1). That is, the base 2 is fixed to the foundation 1 with the anchor bolts 3, the joists 4 are arranged thereon, the nails 5 are slanted and fixed to form a floor frame, and the floor board 6 is stretched thereon to stretch the floor. A wall panel having a wall frame in which an upper frame 7, a lower frame 8, and a vertical frame 9 are assembled on the floor panel is fixed by fixing with a nail 5 on the lower frame 8, Work is carried out in the order of hanging joists on the upper frame 7 of the wall panel and forming and fixing the second floor floor panel in the same manner as described above.
[0003]
And there is a building unit method as one method of industrial production of houses, and this building unit method is applied to the above-mentioned framework wall construction method to build a building unit in the form of a box by standing a wall panel on the floor panel. If a method of assembling and mounting a plurality of pieces at the construction site is taken, fixing the building unit to the foundation and joining the building unit on the first floor and the building unit on the second floor becomes troublesome. That is, fixing the foundation and the floor panel joist of the building unit on the first floor or fixing the upper frame of the wall panel of the first floor building unit and the joist of the floor panel of the second floor building unit by nailing However, unlike the conventional method of assembling sequentially from the bottom as described above, the face material is preliminarily stretched on the floor beam and the wall frame.
[0004]
Therefore , as shown in FIG. 9, a bolt 31 protruding from the upper frame 18 of the wall panel 16 of the lower floor building unit is provided in advance at the site installation, and the lower frame 22 of the floor panel 10 of the upper floor building unit is provided. The through hole 24 is provided larger than the bolt diameter so that the bolt 31 can be easily passed therethrough, and can be easily fixed (Prior Art 2). In addition, 12 is a joist, 15 is a floor material, 17 is a vertical frame, 25 and 26 are surface materials, and 30 is a nut.
[0005]
[Problems to be solved by the invention]
However, in the prior art 2, the through hole 24 is made larger than the bolt diameter, but the displacement by the horizontal force Hp is prevented by tightening with the washer 29. However, there is a problem that if the building is required to increase in size and increase in height in the future, and the horizontal force Hp is also maximized, the gap can be displaced by this gap.
[0006]
The present invention has been made in view of the above-mentioned problems, and is a joint structure with a small amount of displacement even when receiving a very large horizontal force in the joint between a wall panel and an upper floor panel constituting a building unit or the like. A unit building assembled with this joint structure is provided.
[0007]
[Means for Solving the Problems]
In the present invention, the top end of the bolt protrudes from the upper surface of the upper surface of the wall panel in which the upper frame, the lower frame and the vertical frame are assembled to form the wall frame, and the floor frame is formed by forming the joists. A frame material to be joined to the upper frame is attached to the bottom surface of the joist on the side edge of the floor panel, and the bolt is inserted into a through hole provided in advance in the frame material, and a nut is screwed into the bolt. The joint structure of a wall panel and an upper floor panel formed by fastening an upper frame and a frame member.
[0008]
The possible insertion of the bolt into transmural hole, and the outer diameter is mounted is substantially equal cylindrical member into the through hole inner diameter, protruding to the lower end of the cylindrical member is formed, the protrusion is pierced in the upper frame upper surface It is characterized by.
[0009]
Here, the said cylindrical metal fitting has the collar larger than an outer diameter on the upper surface, It can be characterized by the above-mentioned .
[0010]
In addition , the lower end of the cylindrical metal fitting is subjected to a taper process 1 that is continuous on the entire outer periphery and a taper process 2 that is discontinuously formed at an angle larger than the taper 1 in the outer periphery direction to form the protrusions. It is characterized by being.
[0011]
Further , the lower end portion of the cylindrical metal fitting is subjected to a taper process 1 continuous on the entire inner periphery and a taper process 2 that is discontinuously formed at an angle larger than the taper 1 in the inner peripheral direction. Is formed.
[0012]
In addition , a plurality of protrusions are formed at the lower end portion of the cylindrical metal fitting, and a certain length of cut is made between the protrusions and parallel to the cylinder.
[0013]
The tubular fitting is a wood joining fitting, and in the case of a tubular fitting with a collar, the larger the collar, the smaller the displacement can be obtained even when the horizontal force Hp is applied. The outer diameter of the collar may be large (for example, the maximum outer diameter of the collar 89 mm) up to the range of the upper surface of the lower frame (head joint) of the floor panel. In addition, the projection at the lower end of the cylindrical metal fitting is preferably shaped so as to bite into the wood reliably in order to pierce the upper surface of the upper frame and have a small displacement even when subjected to a horizontal force Hp. It is preferable to have a plurality of sharp protrusions.
[0016]
Further, the present invention is a unit building formed by joining the floor panels of the wall panel and the upper floor unit lower floor unit by joining structure between the wall panel and the upper floor panel.
[0017]
[Action]
The tip of the bolt protrudes from the upper surface of the upper frame of the wall panel, and the bolt is inserted into a through hole provided in advance in the frame material to be joined to the upper frame on the lower surface of the joist on the side edge of the upper floor panel. It is a joint structure between the wall panel and the upper floor panel that is formed by fastening the upper frame and the frame material, and the gap between the bolt and the through hole is filled and solidified with an adhesive. If so , the amount of displacement is small even when subjected to extremely large horizontal force.
[0018]
On the other hand , according to the present invention, the tip of the bolt protrudes from the upper surface of the upper frame of the wall panel, and is provided in advance on the frame material to be joined to the upper frame on the lower surface of the joist on the side edge of the upper floor panel. The above bolt is inserted into the through hole, and a nut is screwed into the bolt to join the wall panel and the upper floor panel, which are formed by fastening the upper frame and the frame material. Since the projection on the lower end of the cylindrical metal fitting sticks into the upper frame of the wall and is fixed, and the outer diameter of the cylindrical metal fitting is substantially equal to the inner diameter of the through hole, the upper frame and the frame material are further fixed. Even when subjected to extremely large horizontal force, the amount of displacement is small.
[0019]
Further, if the tubular metal fitting has a greater flange than the outer diameter on the top surface, the reaction force acts to receive the lower frame (head joint) the upper surface of Tsubagayuka panel be subjected to horizontal forces Hp Thus, the amount of displacement can be reduced more reliably.
[0020]
Furthermore , the lower end portion of the cylindrical metal fitting is subjected to a taper process 1 that is continuous on the entire outer periphery and a taper process 2 that is discontinuously formed at an angle larger than the taper 1 in the outer peripheral direction to form the protrusions. If it is , a sharp protrusion is formed, and the upper frame is surely pierced and the amount of displacement is small even when receiving a horizontal force Hp.
[0021]
Also , the lower end portion of the cylindrical metal fitting is subjected to a taper process 1 continuous on the entire inner periphery and a taper process 2 that is discontinuously formed at an angle larger than the taper 1 in the inner peripheral direction, thereby providing the protrusion. If formed, a sharp protrusion is formed, and the same effect as described above can be obtained.
[0022]
Further, the lower end of the cylindrical metal fitting, a plurality of protrusions are formed, if it is made incisions predetermined length in parallel to the cylinder between the projections and the projections, easily inserted into the through hole, the upper frame Due to the elastic deformation of the cut when piercing the upper surface, the subsequent holding force is maintained, and the amount of displacement can be reduced more reliably.
[0024]
Furthermore, since the unit building is formed by joining the wall panel of the lower floor unit and the floor panel of the upper floor unit by the joint structure of the wall panel and the upper floor panel, there is a unit building that is resistant to disasters such as earthquakes. can get.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
1 is a partially broken perspective view showing a building unit to which the present invention is applied, FIG. 2 (a) is a perspective view of a unit building constructed according to the first embodiment, and FIG. 2 (b) is a line AA. FIG. 3 (a) is a partially cutaway vertical sectional view, FIG. 3 (b) is a partial schematic view showing a joint structure of a wall panel upper frame and an upper floor panel frame material showing the second embodiment (I), and FIG. 4 (a) is a perspective view of a cylindrical metal fitting showing another example (II) of the second embodiment, FIG. 4 (b) is a plan view, and FIG. 4 (c) and FIG. Side view, FIG. 4 (e) is a partial cross-sectional view showing the joint structure of the wall panel upper frame and the upper floor panel frame material, and FIG. 5 (a) is a cylinder showing still another example (III) of the second embodiment. 5 (b) is a side view, FIG. 5 (c) is a cross-sectional view taken along the line aa of FIG. 5 (a), and FIG. 5 (d) is b of FIG. 5 (a). -B cross-sectional view, FIG. The lower end part top view of the cylindrical metal fitting which shows another example (IV) of embodiment, Drawing 6 (b) is a side view, Drawing 6 (c) is a cc line sectional view of Drawing 6 (a), 6 (d) is a cross-sectional view taken along the line dd of FIG. 6 (a), FIG. 7 (a) is a perspective view of a cylindrical metal fitting showing still another example (V) of the second embodiment, and FIG. B) is a perspective view of a cylindrical metal fitting showing still another example (VI) of the second embodiment, and FIG. 8A is a joint structure of the wall panel upper frame and the upper floor panel frame material of the third embodiment. FIG. 8 (B) is a partial cross-sectional view showing a partial schematic view.
[0026]
(Building unit) In the building unit T, as shown in FIG. 1, the floor panel 10 has a joist 13 in a state where it is perpendicular to the joists 11, 11,. , 13 are nailed to form a rectangular frame, and further, receiving members 14, 14... Are attached between the joists 11, 11,. A face material 15 such as a structural plywood or a particle board is attached to the upper surface of the floor frame. Reference numerals 16, 16 and 16 denote wall panels, which are erected along the side edges of the floor panel 10. In FIG. 1, the wall panel 16 is erected on three sides of the floor panel 10, but is erected according to which part of the building the building unit constitutes, and at least along a pair of opposing side edges. Established.
[0027]
The wall panel 16 is formed into a wall frame by nailing the upper frame 18 and the lower frame 19 with the top ends and the lower ends of the vertical frames 17, 17. Face materials such as gypsum board and wood piece cement board are attached to both sides of the interior, and the exterior surfaces of these face materials are each finished with interior and exterior finishes, and further, the interior is filled with heat insulation material as necessary. The wall panels 16 are formed with openings such as doorways and windows as necessary.
[0028]
(First Embodiment (Reference) ) FIG. 2A shows a perspective view of a unit building constructed according to the first embodiment. The building units T1 and T2 produced at the factory are transported to the construction site, installed on the foundation 1 laid in advance, the roof unit 35 is mounted on the foundation 1, and various finishing is performed to complete the unit building U.
[0029]
FIG. 2 (b) is a partially cutaway vertical sectional view taken along line AA of the unit building U and shows the joint structure of the first embodiment. That is, the lower floor wall panel 16a is preliminarily screwed with a joining bolt 31 having an outer diameter of 16 mm from the lower surface of the upper frame 18a so as to protrude from the upper surface of the upper frame 18a. It is positioned and placed so as to be inserted into a through hole 24 having an inner diameter of 30 mm, which has a diameter larger than the bolt diameter provided in the head joint (frame material joined to the upper frame) 22. Then, the gap between the joining bolt 31 and the through hole 24 is filled with a one-pack type moisture-curable polyurethane adhesive 40, and is then fastened by a washer 29b and a nut 30, thereby being connected to the upper floor panel 16a and the upper floor panel 16a. The floor panel 10a is fixed. Reference numeral 10b denotes a floor panel, which is integrated with the lower floor wall panel 16a in advance at the production factory. 12a and 12b represent floor joists, 15a and 15b represent floor materials, 17a represents a vertical frame, 19a represents a lower frame, 25a represents an inner material, and 26a represents an outer material.
[0030]
Since the one-pack type moisture curable polyurethane adhesive 40 filled in the gap between the joining bolt 31 and the through hole 24 is cured by moisture in the air, the gap is filled with a hard material. A frame structure with a small amount of displacement can be obtained even when an extremely large horizontal force is applied between the units.
[0031]
(Second Embodiment I) FIG. 3 (a) is a partial schematic view showing a joining structure of a wall panel upper frame and an upper floor panel frame member showing a second embodiment I, and FIG. 3 (b) is a partial sectional view thereof. Indicates. Similarly to the first embodiment, a joining bolt 31 having an outer diameter of 16 mm is screwed in advance from the lower surface of the upper frame 18c of the lower floor wall panel so as to protrude from the upper surface of the upper frame 18c. The upper floor panel is positioned and placed so as to be inserted into a through hole 24c having an inner diameter of 30 mm having a diameter larger than the bolt diameter provided in the head joint (frame member joined to the upper frame) 22c. Then, a cylindrical metal fitting 41 having an outer diameter substantially equal to the inner diameter of the through hole 24 is inserted into the gap between the joining bolt 31 and the through hole 24c. Next, the washer 29b and the nut 30 are tightened. At this time, the cylindrical metal fitting 41 is pushed down by tightening the nut 30, and the lower protrusion 42 of the cylindrical metal fitting 41 bites in from the upper surface of the upper frame 18c.
[0032]
A cylindrical metal fitting 41 having an outer diameter substantially equal to the inner diameter of the through-hole 24c is inserted into the gap between the joining bolt 31 and the through-hole 24c, and a protrusion on the lower side of the cylindrical metal fitting 41 from the upper surface of the upper frame 18c. 42, and then fastened by a washer 29b and a nut 30, a robust joint structure is obtained, and a frame structure with a small amount of displacement can be obtained even when an extremely large horizontal force is applied between building units. That is, since the projection 42 of the cylindrical metal fitting 41 pierces the upper frame 18c, the cylindrical metal fitting 41 and the upper frame 18c are not displaced, and the outer diameter of the cylindrical metal fitting 41 penetrates the head joint 22c. Since it is substantially equal to the inner diameter of the hole, the cylindrical fitting 41 and the head joint 22c are not displaced. Therefore, the upper frame 18c and the head joint 22c are not displaced, and as a result, a frame structure with a small amount of displacement is obtained.
[0033]
(Second Embodiment II) FIG. 4A shows another embodiment of a cylindrical metal fitting, which is a cylindrical metal fitting 41A with a collar 411A. The outer diameter of the collar is 38 mm, the outer diameter of the cylindrical metal fitting 41A is 29 mm, the inner diameter is 25 mm, and the thickness is 2 mm. As shown in FIG. 4 (c), the lower end portion 42A of the cylindrical metal fitting 41A has a taper 1 (angle 30 degrees) of 4 mm width continuously in the circumferential direction, and then, as shown in FIG. 4 (d). The protrusions 423 </ b> A are formed by cutting at six positions discontinuously in the circumferential direction at an angle of 45 degrees. FIG. 4 (e) is a partial cross-sectional view showing a joining structure of a wall panel upper frame and an upper floor panel frame member using the cylindrical metal fitting 41A. Components similar to those in the second embodiment are denoted by the same reference numerals, and description thereof is omitted. This example differs from the second embodiment I only in the cylindrical metal fitting 41A. Since the cylindrical metal fitting 41A has the collar 411A, it is surely pushed down to the head connection (frame material joined to the upper frame) 22c by tightening the nut 30, and is further cylindrical from the upper surface of the upper frame 18c. The lower protrusion 42A of the metal fitting 41A is bitten.
[0034]
A flanged 411A cylindrical metal fitting 41A having an outer diameter of 29 mm, which is substantially equal to the inner diameter 30 mm of the through hole 24c, is inserted into the gap between the joining bolt 31 and the through hole 24c, and the cylindrical metal fitting 41A is inserted from the upper surface of the upper frame 18c. The lower protrusion 42A is bitten in, and is then fastened by the washer 29b and the nut 30 to provide a more robust joint structure, and a frame structure with a small amount of displacement can be obtained even when a very large horizontal force is applied between the building units. It is done. That is, since the projection 42A of the tubular fitting 41A with the collar pierces the upper frame 18c, the tubular fitting 41A and the upper frame 18c are not displaced, and the collar 411A of the tubular fitting 41A is connected to the head. Due to the reaction force from the upper surface of 22c, the movement of the cylindrical fitting 41A is suppressed, and the outer diameter is 29 mm and is substantially equal to the inner diameter of the through hole of the head joint 22c, so the cylindrical fitting 4A1 and the head joint 22c are displaced. do not do. Therefore, since the upper frame 18c and the head joint 22c are not displaced, as a result, a frame structure with a smaller amount of displacement is obtained.
[0035]
(Second Embodiment III) FIGS. 5 (a) and 5 (b) show still another example of the cylindrical metal fitting 41B, and shows a method of forming a protrusion on the lower end of the cylindrical metal fitting 41B. That is, the taper 1 is processed, and as shown in FIG. 5 (c), the cross section along the line aa in FIG. 5 (a) is such that the inner diameter 412B surface is higher and the outer diameter 411B surface is lower. Taper processing is performed to obtain a taper 421B. The angle formed between the surface of the taper 421B and the surface of the inner diameter 412B is 30 degrees. Next, the taper 422B surface is obtained by cutting at six locations discontinuously in the outer peripheral direction at an angle of 45 degrees. As shown in FIG. 5 (d), in the cross section taken along line bb in FIG. 5 (a), the angle formed by the taper 422B surface and the inner diameter 412B surface is 45 degrees. As a result, six sharp protrusions 423B are obtained.
[0036]
That is, by the method described above, a sharp protrusion 423B can be easily obtained at a low cost on the cylindrical metal fitting 41B. Therefore, since the sharp protrusion 423B surely pierces the upper frame 18c in the cylindrical metal fitting 41B, the cylindrical metal fitting 41B and the upper frame 18c are not displaced, and the outer diameter of the cylindrical metal fitting 41B is the head joint 22c. Since it is substantially equal to the inner diameter of the through hole, the cylindrical fitting 41B and the head joint 22c are not displaced. Therefore, since the upper frame 18c and the head joint 22c are not displaced, as a result, a frame structure with a smaller amount of displacement is obtained.
[0037]
(Second Embodiment IV) FIGS. 6 (a) and 6 (b) show still another example of the cylindrical metal fitting 41C, and shows a method of forming a protrusion on the lower end portion of the cylindrical metal fitting 41C. That is, the taper 1 is processed, and as shown in FIG. 5 (c), the cross section along the line cc in FIG. 6 (a) is such that the inner diameter 412C surface is lower and the outer diameter 411C surface is higher. To obtain a taper 421C. The angle formed by the taper 421C surface and the inner diameter 412C surface is 30 degrees. Next, the taper 422C surface is obtained by cutting six locations discontinuously in the inner circumferential direction at an angle of 45 degrees. As shown in FIG. 6 (d), in the cross section taken along the line dd in FIG. 6 (a), the angle formed by the taper 422C surface and the inner diameter 412C surface is 45 degrees. As a result, six sharp protrusions 423C are obtained.
[0038]
That is, by the method described above, a sharp protrusion 423C can be easily obtained at a low cost on the cylindrical metal fitting 41C. Therefore, when the sharp protrusion 423C is reliably pierced into the upper frame 18c and pierced into the cylindrical metal fitting 41C, a force acts in the direction of compressing the bolt hole by the reverse taper, and the bolt fixing force is further improved. The metal fitting 41C and the upper frame 18c are not displaced, and the cylindrical metal fitting 41C and the head joint 22c are not displaced because the outer diameter of the cylindrical metal fitting 41C is substantially equal to the inner diameter of the through hole of the head joint 22c. Therefore, since the upper frame 18c and the head joint 22c are not displaced, as a result, a frame structure with a smaller amount of displacement is obtained.
[0039]
(Second Embodiment V, VI) FIGS. 7 (a) and 7 (b) show examples of further cylindrical metal fittings 41D (second embodiment V) and 41E (second embodiment VI). . Since the cylindrical metal fitting 41D and the cylindrical metal fitting 41E are the same except that the cylindrical metal fitting 41D has a flange 423D, the cylindrical metal fitting 41D will be described. A plurality of protrusions 421D are formed at the lower end of the cylindrical metal fitting 41D, and a notch 422D having a predetermined length is formed between the protrusions 421D and 421D in parallel with the cylinder. As a result, the protrusion 421D can be elastically deformed.
[0040]
That is, the protrusion 423D (or 423E) that can be elastically deformed is formed on the cylindrical metal fitting 41D or 41E by the method described above. Therefore, the resistance when inserting into the through-hole of the head joint 22c is reduced, and the sustainability of the piercing holding force is increased by the elastic deformation of the notch 422D generated when piercing the upper frame 18c. A structure is obtained.
[0041]
(Third embodiment (reference) ) FIG. 8 (a) is a partial schematic view showing a joining structure of a wall panel upper frame and an upper floor panel frame member showing the third embodiment, and FIG. 8 (b) is a partial cross-section thereof. The figure is shown. Similarly to the first embodiment, a joining bolt 31 having an outer diameter of 16 mm is screwed in advance from the lower surface of the upper frame 18d of the lower floor wall panel so as to protrude from the upper surface of the upper frame 18d. The upper floor panel is positioned and placed so as to be inserted into a through hole 24d having an inner diameter of 30 mm having a diameter larger than the bolt diameter provided in the head joint (frame member joined to the upper frame) 22d. Then, a dowel plate 43 is interposed between the nut 30 and the head joint (frame member joined to the upper frame) 22 d, and the joining bolt 31 is inserted into the bolt insertion hole 44 of the dowel plate 43 and is fastened by the nut 30. Therefore, the protrusion 45 of the dowel plate 43 bites into the head joint (frame material joined to the upper frame) of the upper floor panel, and the upper frame and the head joint are firmly fixed.
[0042]
The bolt insertion hole 44 of the above-mentioned dowel plate 43 is substantially equal to the diameter of the bolt, and the protrusion 45 of the dowel plate 43 bites into the head joint (frame member joined to the upper frame) of the upper floor panel and is fixed. Even if an extremely large horizontal force is applied between building units, a frame structure with a small amount of displacement can be obtained. That is, since the bolt insertion hole of the upper frame 18d is substantially equal to the bolt diameter, both are not displaced, and the bolt insertion hole 44 of the gibel plate 43 is substantially equal to the bolt diameter, so both are not displaced, and the dibel plate 43 is the head. Since they are pierced into the tether 22d, they are not displaced. Therefore, since the upper frame 18d and the head joint 22d are not displaced, as a result, a frame structure with a small amount of displacement is obtained.
[0043]
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.
[0044]
【The invention's effect】
The tip of the bolt protrudes from the upper surface of the upper frame of the wall panel, and the bolt is inserted into a through hole provided in advance in the frame material to be joined to the upper frame on the lower surface of the joist on the side edge of the upper floor panel. It is a joint structure between the wall panel and the upper floor panel that is formed by fastening the upper frame and the frame material, and the gap between the bolt and the through hole is filled and solidified with an adhesive. If so , the amount of displacement is small even when subjected to extremely large horizontal force.
[0045]
On the other hand , according to the present invention, the tip of the bolt protrudes from the upper surface of the upper frame of the wall panel, and is provided in advance on the frame material to be joined to the upper frame on the lower surface of the joist on the side edge of the upper floor panel. The above bolt is inserted into the through hole, and a nut is screwed into the bolt to join the wall panel and the upper floor panel, which are formed by fastening the upper frame and the frame material. Since the projection on the lower end of the cylindrical metal fitting sticks into the upper frame of the wall and is fixed, and the outer diameter of the cylindrical metal fitting is substantially equal to the inner diameter of the through hole, the upper frame and the frame material are further fixed. Even when subjected to extremely large horizontal force, the amount of displacement is small.
[0046]
In addition , since the cylindrical metal fitting has a collar larger than the outer diameter on the upper surface, the reaction force received from the upper surface of the lower frame (head joint) of the floor panel by receiving the horizontal force Hp works. Thus, the amount of displacement can be reduced more reliably.
[0047]
Furthermore , the lower end portion of the cylindrical metal fitting is subjected to a taper process 1 that is continuous on the entire outer periphery and a taper process 2 that is discontinuously formed at an angle larger than the taper 1 in the outer peripheral direction to form the protrusions. As a result, a sharp protrusion is formed, and the upper surface of the upper frame is reliably pierced, and the amount of displacement is small even when receiving a horizontal force Hp.
[0048]
Also , the lower end portion of the cylindrical metal fitting is subjected to a taper process 1 continuous on the entire inner periphery and a taper process 2 that is discontinuously formed at an angle larger than the taper 1 in the inner peripheral direction, thereby providing the protrusion. Are formed, sharp protrusions are formed, and the same effect as described above can be obtained.
[0049]
Furthermore, a plurality of protrusions are formed at the lower end of the cylindrical metal fitting, and a cut of a certain length is made parallel to the cylinder between the protrusions and the protrusions. Due to the elastic deformation of the cut when piercing the upper surface, the subsequent holding force is maintained, and the amount of displacement can be reduced more reliably.
[0051]
Furthermore, since the unit building is formed by joining the wall panel of the lower floor unit and the floor panel of the upper floor unit by the joint structure of the wall panel and the upper floor panel, there is a unit building that is resistant to disasters such as earthquakes. can get.
[Brief description of the drawings]
FIG. 1 is a partially broken perspective view showing a building unit to which the present invention is applied.
2A is a perspective view of a unit building constructed according to the first embodiment, and FIG. 2B is a partially cutaway vertical sectional view taken along line AA.
3A is a partial schematic view showing a joint structure of a wall panel upper frame and an upper floor panel frame member showing a second embodiment (I), and FIG. 3B is a partial cross-sectional view thereof.
4A is a perspective view of a cylindrical metal fitting showing another example (II) of the second embodiment, FIG. 4B is a plan view, FIG. 4C is a side view, and FIG. FIG. 3 is a partial cross-sectional view showing a joining structure of a wall panel upper frame and an upper floor panel material.
FIGS. 5A and 5B are plan views of a lower end portion of a cylindrical metal fitting showing still another example (III) of the second embodiment, FIG. 5B is a side view, and FIG. Line sectional drawing, (d) is a sectional view taken along line bb of (b).
6A is a plan view of a lower end of a cylindrical metal fitting showing still another example (IV) of the second embodiment, FIG. 6B is a side view, and FIG. (D) is a dd line sectional view of (a).
7A is a perspective view of a cylindrical metal fitting showing still another example (V) of the second embodiment, and FIG. 7B is a cylindrical shape showing still another example (VI) of the second embodiment. It is a perspective view of this metal fitting.
8A is a partial schematic view showing a joint structure of a wall panel upper frame and an upper floor panel frame member according to a third embodiment, and FIG. 8B is a partial cross-sectional view thereof.
FIG. 9 is a partially cutaway vertical sectional view showing a joint structure according to the related art 2;
10 is a partially cutaway vertical sectional view showing a joint structure according to the prior art 1. FIG.
[Explanation of symbols]
T, T1, T2 Building unit U Unit building 10, 10a, 10b Floor panel 16, 16a Wall panel 18, 18a, 18c, 18d Upper frame 19, 19a Lower frame 22, 22c, 22d Head joint (frame joined to upper frame Material)
29a, 29b Washer 30 Nut 31 Joint bolt 40 Adhesives 41, 41A, 41B, 41C, 41D, 41E Cylindrical metal fittings 43 Dive plate

Claims

The upper frame, the lower frame, and the vertical frame are assembled to form a wall frame. A frame member to be joined to the upper frame is attached to the lower surface of the joist on the side edge, the bolt is inserted into a through hole provided in advance in the frame member, and a nut is screwed into the bolt, It is a joint structure between a wall panel and an upper floor panel that are fastened with a frame material, and a bolt is inserted into the through-hole and a cylindrical metal fitting with an outer diameter substantially equal to the inner diameter of the through-hole is attached. projecting the lower end of the Jo fitting is formed, in Rukoto this protrusion is pierced in the upper frame top, and wherein Rukoto disposed is the tubular fitting to extend over a boundary between the upper frame and the frame members To connect the wall panel to the upper floor panel.

The joining structure of a wall panel and an upper floor panel according to claim 1, wherein the cylindrical metal fitting has a flange larger than an outer diameter on an upper surface.

The lower end portion of the cylindrical metal fitting is subjected to a taper process 1 that is continuous on the entire outer periphery and a taper process 2 that is discontinuously formed at an angle larger than the taper 1 in the outer peripheral direction to form the protrusions. The joint structure of a wall panel and an upper floor panel according to claim 1 or 2, wherein

The lower end portion of the cylindrical metal fitting is subjected to a taper process 1 continuous on the entire inner periphery and a taper process 2 formed discontinuously at an angle larger than the taper 1 in the inner peripheral direction to form the protrusion. The joint structure of a wall panel and an upper floor panel according to claim 1 or 2, wherein

The wall according to claim 1 or 2, wherein a plurality of protrusions are formed at a lower end portion of the cylindrical metal fitting, and a predetermined length of cut is made between the protrusions and parallel to the cylinder. Joining structure of panel and upper floor panel.

A unit building in which the wall panel of the lower floor unit and the floor panel of the upper floor unit are joined by the joint structure of the wall panel according to any one of claims 1 to 5 and the upper floor panel.