JP3728728B2

JP3728728B2 - Column and steel pipe pile positioning device

Info

Publication number: JP3728728B2
Application number: JP2001398918A
Authority: JP
Inventors: 茂樹伊藤; 和近今野; 晃司沖; 洋一郎堀
Original assignee: JFE Steel Corp; JFE Metal Products and Engineering Inc
Current assignee: JFE Steel Corp; JFE Metal Products and Engineering Inc
Priority date: 2001-12-28
Filing date: 2001-12-28
Publication date: 2005-12-21
Anticipated expiration: 2021-12-28
Also published as: JP2003193480A

Description

【０００１】
【発明の属する技術分野】
本発明は、柱を鋼管杭に接合する際の位置決め装置に関するものである。
【０００２】
【従来の技術】
地盤に建て込まれた鋼管杭の上部に柱の下部を挿入して位置決めし、仮止めを行ったのち鋼管杭と柱との間にコンクリート等を充填し、両者を一体に接合する技術は従来から種々提案されており、その一例として、特開平９−２６８５６７号公報に記載された発明がある。
【０００３】
この発明に係る柱と杭の接合構造は、上部建造物の柱と、地中に立設されて内部にコンクリートが充填された杭と、水平方向に取付けられた仕口部材を有し杭内に挿入されてコンクリートで固定される脚部からなる支柱とを有し、杭の上部と仕口部材との間に設置され、仕口部材の上下方向の位置を規制する位置決め手段を備えたものである。
【０００４】
【発明が解決しようとする課題】
上記のような柱と杭の接合構造は種々特長を有するが、位置決め手段を、支柱に設けた仕口部材と杭の頂部との間に設置するようにしている。このため、いつでも杭の近傍に仕口部材があるとは限らず、また、水平位置調整のために水平に配置されたボルトや金物を設置でき、かつ作業できるだけの空間が確保できないこともあるため、適用範囲が限られているという問題がある。
また、位置決め手段に用いられるボルトや金物などは、施工後に床下や基礎内などの目に触れない場所になることを想定しているため、これらが地上に露出するような構造になる場合は、意匠上好ましくない事態が生じる。
【０００５】
本発明は、上記の課題を解決するためになされたもので、柱と鋼管杭とを精度よく位置決めすることができ、施工後においても意匠的、景観的に不具合がなく、その上再使用することのできる柱と鋼管杭の位置決め装置を提供することを目的としたものである。
【０００６】
【課題を解決するための手段】
本発明に係る柱と鋼管杭の位置決め装置は、ねじ穴を有する受け部及び脚部からなり、該脚部が鋼管杭の外周面に着脱可能に取付けられる複数の下部支持部材と、該下部支持部材の受け部に設けたねじ穴に対応してねじ挿通穴が設けられ、柱の外周に固定されたリング状の上部支持部材と、該上部支持部材に設けたねじ挿通穴より小径で、前記下部支持部材の受け部に設けたねじ穴に螺入された長ボルトとを有し、前記柱を鋼管杭内に挿入すると共に、前記上部支持部材のねじ挿通穴を前記長ボルトに嵌合し、該柱の上下方向、傾き及び水平方向の位置を調整して固定するようにした。
【０００７】
また、ねじ穴を有する受け部及び鋼管杭の杭頭部から嵌合して周壁を着脱可能に挾持する一対の板からなる脚部を備えた複数の下部支持部材と、該下部支持部材の受け部に設けたねじ穴に対応してねじ挿通穴が設けられ、柱の外周に固定されたリング状の上部支持部材と、該上部支持部材に設けたねじ挿通穴より小径で、前記下部支持部材の受け部に設けたねじ穴に螺入された長ボルトとを有し、前記柱を鋼管杭内に挿入すると共に、前記上部支持部材のねじ挿通穴を前記長ボルトに嵌合し、該柱の上下方向、傾き及び水平方向の位置を調整して固定するようにした。
【０００８】
また、ねじ穴を有する受け部、及び鋼管杭の外周面に着脱可能に取付けられる脚部、又は鋼管杭の杭頭部から嵌合して周壁を着脱可能に挾持する一対の板からなる脚部を備えた複数の下部支持部材と、該下部支持部材の受け部に設けたねじ穴に対応してねじ挿通穴が設けられ水平片及び柱に着脱可能に取付けた垂直片からなるＬ字状の複数の上部支持部材と、該上部支持部材に設けたねじ挿通穴より小径で、前記下部支持部材の受け部に設けたねじ穴に螺入された長ボルトとを有し、前記柱を鋼管杭内に挿入すると共に、前記上部支持部材のねじ挿通穴を前記長ボルトに嵌合し、該柱の上下方向、傾き及び水平方向の位置を調整して固定するようにした。
【０００９】
また、ねじ穴を有する受け部、及び鋼管杭の外周面に着脱可能に取付けられる脚部、又は鋼管杭の杭頭部から嵌合して周壁を着脱可能に挾持する一対の板からなる脚部を備えた複数の下部支持部材と、内径が柱の外径とほぼ等しい円筒体を２つ割りにして一対の固定部材を形成し、両固定部材の開口部の外側の上下方向に複数のねじ挿通穴を有する固定板をそれぞれ設けると共に、外壁の下部にねじ挿通穴を有し前記下部支持部材の受け部に対応してブラケットをそれぞれ設けて前記柱に着脱可能に取付けた上部支持部材と、該上部支持部材に設けたねじ挿通穴より小径で、前記下部支持部材の受け部に設けたねじ穴に螺入された長ボルトとを有し、前記柱を鋼管杭内に挿入すると共に、前記上部支持部材のねじ挿通穴を前記長ボルトに嵌合し、該柱の上下方向、傾き及び水平方向の位置を調整して固定するようにした。
【００１２】
【発明の実施の形態】
［実施の形態１］
図１は本発明の実施の形態１に係る柱と鋼管杭の位置決め装置の説明図である。
図において、１は地盤に建て込まれた鋼管杭で、杭頂部近傍には、円周方向にほぼ等間隔で少なくとも３か所にそれぞれ上下方向に複数のねじ穴２が設けられている。
【００１３】
１０は下部が鋼管杭１内に埋め込まれた柱、２０は位置決め装置である。位置決め装置２０において、２１は複数の下部支持部材で、図２（ａ），（ｂ）に示すように、受け部２２とその下面に直交して溶接により接合された板状の脚部２３とからなっている。そして、受け部２２のほぼ中央部にはねじ穴２４が設けられており、また、脚部２３には鋼管杭１に設けたねじ穴２に対応してねじ挿通穴２５が設けられている。
【００１４】
３０は柱１０の下方において、柱１０が鋼管杭１と接合されたときに鋼管杭１の頂部の近傍に位置するように、溶接により柱１０に接合されたリング状の上部支持部材で、図２（ｃ）に示すように、下部支持部材２１を鋼管杭１に取付けたときに、受け部２２に設けたねじ穴２４に対応した位置にそれぞれねじ挿通穴３１が設けられている。
３５は全長にねじが設けられ下部が下部支持部材２２のねじ穴２４に螺入される長ボルト、３６は座金、３７ａ，３７ｂ，３７ｃは長ボルト３５に螺合されたナットである。なお、上部支持部材３０に設けたねじ挿通穴３１は、長ボルト３５の外径より相当大きく形成されている。
【００１５】
次に上記のように構成した位置決め装置により、柱と鋼管杭との位置決め手順の一例を、図３、図４により図１を参照して説明する。
先ず、図３（ａ）に示すように、鋼管杭１を地盤Ｇに掘削した穴内に建て込み、鋼管杭１内に挿入される柱１０の下端部より若干下方まで、及び鋼管杭１と地盤Ｇとの間に形成されたすき間（図示せず）に、コンクリート、モルタル等５（以下、コンクリート等という）を充填し、固定する。この場合、コンクリート等５に代えて、穴を掘削した際の掘削土又は掘削土にセメントと水を混合して撹拌した改良埋戻し土（以下、両者を合せて掘削土という）を充填してもよい。
【００１６】
ついで、図（３）ｂに示すように、鋼管杭１の上部に設けたねじ穴２に、下部支持部材２１の脚部２３に設けたねじ挿通穴２５を整合させ、このねじ挿通穴２５に挿入したボルト２６をねじ穴２に螺入し、各下部支持部材２１をそれぞれ鋼管杭１に取付ける。そして、各下部支持部材２１の受け部２２のねじ穴２４にそれぞれ長ボルト３５を螺入して立設し、ナット３７ａで固定する。また、各長ボルト３５にほぼ同じ高さ位置までナット３７ｂを螺合し、その上に座金３６を挿入する。
【００１７】
次に、図３（ｃ）に示すように、所定の位置に上部支持部材３０が取付けられた柱１０の下部を鋼管杭１内に挿入すると共に、上部支持部材３０に設けたねじ挿通穴３１を長ボルト３５に嵌合してナット３７ｂ上に載置し、上部支持部材３０の上方から長ボルト３５に座金３６を介してナット３７ｃを緩く螺合する。
そして、ナット３７ｂにより柱１０の上下方向や傾きを調整すると共に、長ボルト３５の径より大きく形成したねじ挿通穴３１を利用して水平方向の位置を調整し、鋼管杭１内の所定の位置に柱１０をセットしてナット３７ｃにより固定する。これにより、鋼管杭１に対する柱１０の位置決め（仮り止め）が終了する。
【００１８】
この状態で、図４（ａ）に示すように、鋼管杭１と柱１０との間及び柱１０内にコンクリート等６を充填する。
コンクリート等６が固化したのち、図４（ｂ）に示すように、ナット３７ａ〜３７ｃを緩めて長ボルト３５を下部支持部材２１及び上部支持部材３０から取り外す。ついで、ボルト２６を緩めて下部支持部材２１を鋼管杭１から取り外す。このときの状態を図４（ｃ）に示す。
【００１９】
上記のような本実施の形態においては、鋼管杭１に対する柱１０の位置決めにあたって、従来技術のように仕口部材等を必要とせず、簡単な作業により位置決めを広い空間で精度良く行うことができるので、位置決め装置２０の着脱や調整が容易である。
また、下部支持部材２１やボルト、ナット等は別の柱の位置決めにも再利用できるので、コストを低減することができる。
なお、位置決め装置２０の取り外し後は、柱１０に取付けた上部支持部材３０が残置されるが、その外径は鋼管杭１の外径と大差がないため、意匠的に問題がなく、また使用上の障害になることはない。
【００２０】
図５は本実施の形態の他の例を示す一部を省略した説明図である。なお、図１の例と同じ部分にはこれと同じ符号を付し、説明を省略する。
図１の例では、長ボルト３５に３個のナット３７ａ〜３７ｃを螺合して柱１０の位置決めを行い、固定する場合を示したが、本例では、下部支持部材２１の受け部２２と上部支持部材３０との間に、例えば図５（ｂ）に示すような長ボルト３５に挿脱可能な切り欠き３８ａを有する座金状のライナプレート３８を挿脱することにより、柱１０の上下方向や傾きを調整するようにし、図１のナット３７ａ，３７ｂ及びナット３７ｂ上の座金３６を省略したものである。
【００２１】
本例の施工手順及び効果は、図１の例の場合とほぼ同様であるが、さらに、ナット３７ａ，３７ｂに代えて座金状のライナープレート３８を用いることにより、部品が簡単で安くなるばかりでなく、施工後は上部支持部材３０を鋼管杭１の頂部に近い位置に配置することができるので、外観上の問題や使用上の問題をさらに少なくすることができる。
【００２２】
［実施の形態２］
図６は本発明の実施の形態２に係る柱と鋼管杭の位置決め装置の一部を省略して示した説明図である。なお、実施の形態１と同じ部分にはこれと同じ符号を付し、説明を省略又は簡略化する。
４１は下部支持部材で、図７に示すように、下部に厚みｔの突部４３を有する逆凸字状の受け部４２と、突部４３の両側において受け部４２の下面にこれと直交して溶接により接合された一対の板状の脚部４４ａ，４４ｂとからなり、受け部４２のほぼ中央部にはねじ穴４５が設けられており、一方の脚部４４ａの上下方向には鋼管杭１のねじ穴２に対応してねじ挿通穴４６が、また他方の脚部４６ｂにはねじ挿通穴４６に対応してねじ穴４７が設けられている。なお、受け部４２に設けた突部４３の厚みｔ、したがって、脚部４４ａ，４４ｂの間隔は、鋼管杭１の板厚とほぼ等しく形成されている。
【００２３】
５６は柱１０の下方において、柱１０が鋼管杭１に接合されたときに鋼管杭１の頂部近傍に位置し、かつ、鋼管杭１に設けたねじ穴２に対応した位置にねじ穴５７が設けられて、溶接により柱１０に接合された板状の固定金物である。
【００２４】
５１は上部支持部材で、図８に示すように、垂直片５２と水平片５３とによりＬ字状に形成されており、垂直片５２には固定金物の５６に設けたねじ穴５７に対応してねじ挿通穴５４が設けられており、水平片５３には下部支持部材４１の受け部４２のねじ穴４５に対応して、長ボルト３５の外径より相当大きい径のねじ挿通穴５５が設けられている。
【００２５】
次に、本実施の形態による柱と鋼管杭の位置決め手順の一例について、図６〜図８を参照して図９により説明する。
先ず、実施の形態１の場合と同様に、地盤に掘削した穴内に鋼管杭１を建て込んで、鋼管杭１内及び鋼管杭１と地盤との間に形成されたすき間に、コンクリート等５あるいは掘削土を充填し、固定する。
【００２６】
ついで、図９（ａ）に示すように、鋼管杭１の杭頭部に複数の下部支持部材４１を取付ける。取付けにあたっては、鋼管杭１の頂部から下部支持部材４１の脚部４４ａを外側にして両脚部４４ａ，４４ｂを鋼管杭１に嵌合して挾持し、そのねじ挿通穴４６をねじ穴２に整合させる。そして、ねじ挿通穴４６にボルト２６を挿入してねじ穴２，４７に螺入し、一体に固定する。
一方、柱１０に設けた固定金物５６に上部支持部材５１の垂直片５２を当接し、ねじ挿通穴５４をねじ穴５７と整合させ、ねじ挿通穴５４に挿入したボルト５８をねじ穴５７に螺入し、一体に固定する。
【００２７】
次に、図９（ａ）に示すように、柱１０の下部を鋼管杭１内に挿入し、図９（ｂ）に示すように、あらかじめ選ばれた厚みのライナープレート３８を介して上部支持部材５１の水平片５３を下部支持部材４１の受け部４２上にそれぞれ載置する。ついで、上部にナット３７ｃが螺合された長ボルト３５を、上部支持部材５１に設けたねじ挿通穴５５に挿入し、受け部４２に設けたねじ穴４５に螺入する。
【００２８】
そして、ライナプレート３８を挿脱することにより柱１０の上下方向及び傾きを調整すると共に、上部支持部材５１に設けた長ボルト３５の径より大径のねじ挿通穴５５を利用して水平方向の位置を調整し、柱１０を鋼管杭１０内の所定の位置にセットしてナット３７ｃにより固定する。これにより、鋼管杭１に対する柱１０の位置決め（仮り止め）が終了する。なお、下部支持部材４１の受け部４２のねじ穴４５に長ボルト３５を螺入しておき、この長ボルト３５に上部支持部材５１のねじ挿通穴５５を嵌合してナット３７ｃにより仮り止めし、固定金物５６が設けられた柱１０を鋼管杭１内に挿入したのち、上部支持部材５１の垂直片５２を固定金物５６に取付けるようにしてもよい。
【００２９】
この状態で、図９（ｂ）に示すように、鋼管杭１と柱１０の間及び柱１０内にコンクリート等６を充填する。
コンクリート等６が固化したのち、図９（ｃ）に示すように、ボルト２６，５８を緩めて、下部支持部材４１と上部支持部材５１を上方に移動させ、鋼管杭１及び柱１０から取り外す。このときの状態を図９（ｄ）に示す。
【００３０】
上記のように構成した本実施の形態は、実施の形態１の場合と同様の効果を得ることができるが、さらに、下部支持部材４１及び上部支持部材５１を取り外した後、柱１０に残存するのは板状の固定金物５６だけなので、使用上の障害にならないばかりでなく、意匠的にもより優れた柱１０を実現することができる。
【００３１】
［実施の形態３］
図１０は本発明の実施の形態３に係る柱と鋼管杭との位置決め装置の一部を省略して示した説明図である。なお、実施の形態１，２と同じ部分にはこれと同じ符号を付し、説明を省略する。
本実施の形態は、下部支持部材２１に実施の形態１の下部支持部材２１と同じ構造のものを用い、上部支持部材５１に実施の形態２の上部支持部材５１と同じ構造のものを用いたものである。
【００３２】
２７は鋼管杭１に設けたねじ穴２に対応してねじ穴２８が設けられた板状の補強プレートで、両ねじ穴２，２８を整合させて鋼管杭１間の外周面に溶接により接合したものである。この補強プレート２７は、鋼管杭１の杭頭部の補強と共に、比較的板厚の薄い鋼管杭１にボルト２６を十分な長さで噛み合わせるために設けたものであって、鋼管杭１の内周面に設けてもよい。なお、この補強プレート２７は、実施の形態１にも用いることができる。
【００３３】
本実施の形態の施工手順は、実施の形態１，２の施工手順に準じて行うことができる。なお、柱１０の位置を調整して固定するナット３７ａ，３７ｂに代えて、実施の形態２で説明したライナープレート３８を用いてもよい。
本実施の形態によれば、実施の形態１，２とほぼ同様の効果を得ることができる。
【００３４】
［実施の形態４］
図１１は本発明の実施の形態４に係る柱と鋼管杭の位置決め装置の説明図である。なお、実施の形態１〜３と同じ部分にはこれと同じ符号を付し、説明を省略又は簡略化する。
図において、６１は鋼管杭１より小径で柱１０より大径の例えば鋼管からなる円筒状のさや管で、その内周面にはコンクリート等が付着しないか又はほとんど付着しない材料６２（以下、剥離材という）が塗布され、あるいは剥離材６２が塗布された面材、シート等又はコンクリート等が付着しないか若しくはほとんど付着しないシート等が巻き付けられている。
【００３５】
そして、工場等において、上部支持部材３０が取付けられた柱１０の下部をさや管６１内に挿入してコンクリート等６３を充填して一体化し、柱部材６０を構成する。なお、このさや管６１は鋼管に代えて、例えばコンクリート等が付着しないか又はほとんど付着しない材料からなる円筒体で形成してもよく、あるいは下部になるにしたがって徐々に縮径されたテーパー管によって形成してもよい。
【００３６】
次に、本実施の形態の施工手順の一例を図１２、図１３により説明する。
先ず、図１２（ａ）に示すように、地盤Ｇに建て込まれた鋼管杭１の杭頭部に、実施の形態１の場合と同様に下部支持部材２１を取付ける。
ついで、図１２（ｂ）に示すように、柱１０とさや管６１が一体化された柱部材６０を鋼管杭１内に挿入すると共に、上部支持部材３０のねじ挿通穴３１を長ボルト３５に嵌合し、これに螺合されたナット３７ｂ上に載置する。そして、実施の形態１の場合と同様に、柱１０の上下方向、傾き及び水平方向の位置を調整し、固定する。
【００３７】
次に、図１２（ｃ）に示すように、鋼管杭１と柱部材６０との間にコンクリート等６を充填する。そして、コンクリート等６が固化したのち、図１２（ｄ）に示すように、長ボルト３５及び下部支持部材２１を取外せば、柱１０と鋼管杭１との接合が完了する。このときの状態を図１３（ａ）に示す。
【００３８】
柱１０を交換したり撤去したい場合は、図１３（ｂ）に示すように、施工機械等により柱１０を鉛直方向に引き上げる。このとき、さや管６１の外周面はコンクリート等６に付着しているが、さや管６１の内周面とコンクリート等６３との間は剥離材６２により付着が切れているため、周囲のコンクリート等６３と共に、さや管６１を鋼管杭１内に残置した状態で柱１０を引き抜くことができる。
この場合、図１４に示すように、下部支持部材２１と上部支持部材３０との間にジャッキ６５を介装し、柱１０を引き抜いてもよい。
【００３９】
また、鋼管杭１に新しい柱（引き抜いた柱１０のコンクリート等６を除去したものを含む）を接合する場合は、古い柱１０を引き抜いたさや管６１内を清掃したのち、図１３（ｃ）に示すように、鋼管杭１に下部支持部材２１等を取付けて、上部支持部材３０が設けられた柱１０をさや管６１内に挿入し、図１３（ｄ），（ｅ）に示すように、前述の要領で柱１０の位置決め、コンクリート等６の打設、下部支持部材２１等の撤去を行えばよい。
【００４０】
上記の説明では、実施の形態１に係る位置決め装置を用いた場合を示したが、実施の形態２又は３に係る位置決め装置を用いてもよい。
本実施の形態によれば、実施の形態１〜３とほぼ同様の効果を得ることができるが、さらに、本発明に係る位置決め装置を用いたことにより、柱１０の交換や撤去を容易に行うことができる。
【００４１】
［実施の形態５］
図１５は本発明の実施の形態５に係る柱と鋼管杭の位置決め装置の説明図、図１６（ａ），（ｂ）は図１５の下部支持部材の取付状態を示す平面図及び側面図である。なお、実施の形態１〜４と同じ部分にはこれと同じ符号を付し、説明を省略する。
実施の形態１〜４においては、施工後においても柱１０に上部支持部材３０又は固定金物５６が残置される場合を示したが、本実施の形態においては、施工後には柱１０に金物等が一切残らないように構成したものである。
また、実施の形態１〜４では、下部支持部材２１の受け部２２に設けたねじ穴２４に長ボルト３５を螺入して立設し、この長ボルト３５に上部支持部材３０，５１に設けたねじ挿通穴３１，５５を嵌合して、ナットで固定する場合を示したが、本実施の形態においては長ボルト３５を省略して下部支持部材２１の受け部２２にねじ挿通穴を設け、下部支持部材２１と上部支持部材とをボルト・ナットにより固定するようにしたものである。
【００４２】
図１５、図１６において、２７ａは補強プレートで、実施の形態３のように溶接により鋼管杭１に接合せず、鋼管杭１と下部支持部材２１の脚部２３との間に挾んでボルト２６，２６ａにより一体に固定したものである。なお、ボルト２６ａは角度調整用ボルトを兼ねているが、これは省略してもよく、さらに鋼管杭１の板厚が厚い場合は、補強プレート２７ａを省略してもよい。
２４ａは下部支持部材２１の受け部２２に設けたねじ挿通穴である。
【００４３】
７０は上部支持部材で、図１７（ａ），（ｂ）に示すように、柱１０の外径とほぼ等しい内径の鋼管（短管）の如き円筒体を、上下方向に２つ割にして形成した断面半円状の一対の固定部材７１ａ，７１ｂと、上下方向に複数のねじ挿通穴７３を有し、固定部材７１ａ，７１ｂの開口端部の両側において開口部と同一平面上に、かつ鉛直方向に取付けられた各一対の固定板７２ａ，７２ｂと、ボルト７８の外径より大径のねじ挿通穴７５が設けられ、両固定部材７１ａ，７１ｂの外壁の下部にほぼ９０°間隔で水平に溶接により接合されたブラケット７４とからなっている。７６は固定部材７１ａ，７１ｂとブラケット７４との間に溶接接合された補強リブであるが、これは省略してもよい。なお、７７，７８はボルト、図１５における６４は柱部材６０の底部に設けられた回転防止用の縦リブである。
【００４４】
次に、図１８により本実施の形態の施工手順の一例について説明する。
先ず、図１８（ａ）に示すように、地盤Ｇに建て込まれた鋼管杭１の杭頭部外周に、ほぼ９０°間隔で補強プレート２７ａを介して下部支持部材２１の脚部２３をボルト２６により固定する（図１６参照）。この場合、補強プレート２７ａを省略して下部支持部材２１の脚部２３を直接鋼管杭１にボルト接合してもよい。
【００４５】
また、図１８（ｂ）に示すように、柱部材６０のさや管６１よりやや上方において、柱１０の外壁に、上部支持部材７０を構成する固定部材７１ａ，７１ｂを対向して嵌装し、固定板７２ａ，７２ｂを当接させる。そして、固定板７２ａ，７２ｂに設けたねじ挿通穴７３にボルト７７を挿通し、ナットを螺合して固定する。これにより、固定部材７１ａ，７１ｂ、したがって上部支持部材７０は柱１０の外周に強固に固定される。なお、必要に応じて柱１０と固定部材７１ａ，７１ｂとの間にパッキン等を介装してもよい。
【００４６】
次に、図１８（ｃ）に示すように、柱部材６０の下部を鋼管杭１内に挿入し、上部支持部材７０のブラケット７４をライナープレート３８を介して下部支持部材２１の受け部２２上に載置して、ねじ挿通穴２４ａと７５を整合させる。そして、ねじ挿通穴７５から２４ａにボルト７８を挿入し、柱部材６０の上下方向、傾き及び水平方向の位置を調整したのち、受け部２２の下からボルト７８にナットを螺入し、一体に固定する。このときの状態を図１８（ｄ）に示す。
【００４７】
以下、他の実施の形態の場合と同様に、鋼管杭１と柱部材６０との間にコンクリート等６を充填し、コンクリート等６が固化したのち下部支持部材２１（補強プレート２７ａを含む）を取外すと共に、上部支持部材７０を柱１０から取外す。
これにより、外周に全く突出部のない鋼管杭１と柱１０が一体に接合される。なお、柱１０を交換したり撤去する場合は、実施の形態４の場合とほぼ同様の手順で行えばよい。
【００４８】
上記の説明では、柱部材６０を構成する柱１０に断面半円状の固定部材７１ａ，７１ｂ等からなる上部支持部材７０を着脱可能に取付ける場合を示したが、実施の形態１〜３のように、柱１０を直接鋼管杭１に接合する場合においても、本実施の形態に係る上部支持部材７０を用いることができる。
また、実施の形態１〜４においては、柱の位置決め及び下部支持部材と上部支持部材の固定のために、下部支持部材の受け部に螺入した長ボルトを用いたが、この長ボルトに代えて、本実施の形態のように、ボルト・ナットにより柱の位置決め及び下部支持部材と上部支持部材を固定するようにしてもよい。
【００４９】
本実施の形態によれば、実施の形態１〜４とほぼ同様の効果が得られるが、さらに、施工後は鋼管杭及び柱の外周に位置決め装置に用いた金物等が一切残らないので、使用上の障害になることがなく、その上外観的、意匠的にすぐれた柱と鋼管杭の接合構造を得ることができる。
また、位置決め装置に用いた全ての部材が再使用できるので経済的効果も大きい。
さらに、下部支持部材と上部支持部材をボルト・ナットにより固定するようにしたので、位置決め及び固定、取外し作業が容易である。
【００５０】
上記の各実施の形態においては、円形断面の柱１０を鋼管杭１に接合する場合を示したが、角形断面、Ｈ形断面の柱の場合にも本発明を実施することができる。
【００５１】
本発明に係る位置決め装置は、上記のように構成したので、柱と鋼管杭を精度よく位置決めできるばかりでなく、施工後には取外すことができるので、意匠上、景観上不都合が生じることがない。また、施工後再使用できるため経済的効果も大きい。
また、位置決め装置を比較的小さい部品で形成し、各部品をボルト、ナットで確実に緊定できる構造としたので、仮止め段階における外力に対して安全性が高く、また着脱も容易である。
【００５２】
さらに、長ボルト３５に螺合する複数のナット３７ｂの高さ位置をあらかじめ調整しておくか、又は長ボルト３５若しくはボルト７７に必要な厚みのライナープレート３８を配置しておくことにより、上部支持部材３０，５１をナット３７ｂ又はライナープレート３８に当接するまで下降させることにより、上下方向の基本的位置決めを行うことができ、また、上部支持部材３０，５１のボルト挿通穴３１，５５を長ボルト３５又はボルト７７の径より大きく形成することにより、柱１０の水平方向の位置を容易に調整することができるので、柱１０と鋼管杭１を短時間で高精度に位置決めすることができる。
【００５３】
【発明の効果】
本発明に係る柱と鋼管杭の位置決め装置は、ねじ穴又はねじ挿通穴を有する受け部及び脚部からなり、この脚部を鋼管杭の外周面に着脱可能に取付けられた複数の下部支持部材と、この下部支持部材の受け部に設けたねじ穴に対応してねじ挿通穴が設けられ、柱の外周に固定されたリング状の上部支持部材、又は柱の外周に着脱可能に取付けられるＬ字状若しくは断面半円状の上部支持部材と、これら上部支持部材に設けたねじ挿通穴より小径で、下部支持部材の受け部に設けたねじ穴に螺入された長ボルト又はねじ挿通穴に挿通されるボルトとを有し、柱を鋼管杭内に挿入すると共に、上部支持部材のねじ挿通穴を長ボルトに嵌合し、又は下部支持部材と上部支持部材のねじ挿通穴にボルトを挿入し、柱の上下方向、傾き及び水平方向の位置を調整して固定するようにしたので、柱と鋼管杭を容易かつ高精度で位置決めすることができ、また、施工後は取外して再使用できるため、経済的効果の大きい位置決め装置を得ることができる。
【図面の簡単な説明】
【図１】本発明の実施の形態１に係る柱と鋼管杭の位置決め装置の説明図である。
【図２】図１の下部支持部材の取付状態を示す平面図、斜視図及び上部支持部材の取付状態を示す平面図である。
【図３】実施の形態１の施工手順の一例の説明図である。
【図４】実施の形態１の施工手順の一例の説明図である。
【図５】実施の形態１の他の例を示す一部を省略した説明図である。
【図６】本発明の実施の形態２に係る柱と鋼管杭の位置決め装置の一部を省略した説明図である。
【図７】図６の下部支持部材の斜視図である。
【図８】図６の上部支持部材の斜視図である。
【図９】実施の形態２の施工手順の一例の説明図である。
【図１０】本発明の実施の形態３に係る柱と鋼管杭の位置決め装置の一部を省略した説明図である。
【図１１】本発明の実施の形態４に係る柱と鋼管杭の位置決め装置の一部を省略した説明図である。
【図１２】実施の形態４の施工手順の一例の説明図である。
【図１３】実施の形態４の施工手順の一例の説明図である。
【図１４】実施の形態４の柱の引抜手段の他の例を示す説明図である。
【図１５】本発明の実施の形態５に係る柱と鋼管杭の位置決め装置の一部を省略した説明図である。
【図１６】図１５の下部支持部材の取付状態を示す平面図及び側面図である。
【図１７】図１５の上部支持部材の平面図及び側面図である。
【図１８】実施の形態５の施工手順の説明図である。
【符号の説明】
１鋼管杭
１０柱
２０位置決め装置
２１，４１下部支持部材
２２，４２受け部
２４ａ，３１，５５，７５ねじ挿通穴
３０，５１，７０上部支持部材
３５長ボルト
３７ａ，３７ｂ，３７ｃナット
３８ライナープレート
６０柱部材
６１さや管
６２剥離材
７１ａ，７１ｂ固定部材
７２ａ，７２ｂ固定板
７４ブラケット[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a positioning device when joining a column to a steel pipe pile.
[0002]
[Prior art]
The technology to insert the lower part of the column into the upper part of the steel pipe pile built on the ground, position it, temporarily fix it, fill the steel pipe pile and the column with concrete, etc., and join them together is conventional Various examples have been proposed, and an example thereof is the invention described in Japanese Patent Laid-Open No. 9-268567.
[0003]
The column / pile joint structure according to the present invention includes a column of an upper building, a pile standing in the ground and filled with concrete, and a joint member attached in a horizontal direction. Having a leg post inserted into the concrete and fixed with concrete, and provided with positioning means installed between the upper part of the pile and the joint member to regulate the vertical position of the joint member It is.
[0004]
[Problems to be solved by the invention]
The above-described column-pile joint structure has various features, but the positioning means is installed between the joint member provided on the column and the top of the pile. For this reason, there is no guarantee that there will always be a joint member in the vicinity of the pile, and it is possible to install horizontal bolts and hardware for adjusting the horizontal position, and it may not be possible to secure enough space for work. There is a problem that the scope of application is limited.
Also, bolts and hardware used for positioning means are assumed to be inaccessible places such as under the floor and in the foundation after construction, so if these are exposed to the ground, An unfavorable situation occurs in the design.
[0005]
  The present invention has been made to solve the above-described problems, and can accurately position a column and a steel pipe pile, and can be reused in addition to no defects in design and landscape even after construction. It aims at providing the positioning device of a pillar and a steel pipe pile which can be done.
[0006]
[Means for Solving the Problems]
BookThe column and steel pipe pile positioning device according to the invention is a receiving part having a screw hole.as well asA plurality of lower support members comprising leg portions, the leg portions being detachably attached to the outer peripheral surface of the steel pipe pile, and screw insertion holes are provided corresponding to the screw holes provided in the receiving portion of the lower support member, A ring-shaped upper support member fixed to the outer periphery of the column, and a long bolt screwed into a screw hole provided in the receiving portion of the lower support member, having a smaller diameter than a screw insertion hole provided in the upper support member. The column is inserted into the steel pipe pile, and the screw insertion hole of the upper support member is fitted to the long bolt to adjust the vertical, tilt and horizontal position of the column.do itI fixed it.
[0007]
  A plurality of lower support members each including a receiving portion having a screw hole and a pair of legs that are fitted from a pile head portion of a steel pipe pile and removably hold a peripheral wall; A screw insertion hole corresponding to the screw hole provided in the section, and a ring-shaped upper support member fixed to the outer periphery of the column, and the lower support member having a smaller diameter than the screw insertion hole provided in the upper support member A long bolt screwed into a screw hole provided in the receiving portion, and inserting the column into a steel pipe pile, fitting a screw insertion hole of the upper support member to the long bolt, The vertical position, inclination, and horizontal position of the are adjusted and fixed.
[0008]
  Moreover, the receiving part which has a screw hole, and the leg part attached to the outer peripheral surface of a steel pipe pile so that attachment or detachment is possible, or the leg part which consists of a pair of board which fits from the pile head part of a steel pipe pile and detachably holds a surrounding wall And a plurality of lower support members, and an L-shaped configuration comprising a horizontal piece and a vertical piece detachably attached to a pillar, provided with screw insertion holes corresponding to the screw holes provided in the receiving part of the lower support member. A plurality of upper support members; and a long bolt screwed into a screw hole provided in a receiving portion of the lower support member having a smaller diameter than a screw insertion hole provided in the upper support member; In addition to being inserted into the upper support member, the screw insertion hole of the upper support member was fitted into the long bolt, and the vertical direction, inclination and horizontal position of the column were adjusted and fixed.
[0009]
  Moreover, the receiving part which has a screw hole, and the leg part attached to the outer peripheral surface of a steel pipe pile so that attachment or detachment is possible, or the leg part which consists of a pair of board which fits from the pile head part of a steel pipe pile and detachably holds a surrounding wall A plurality of lower support members comprising:A pair of fixing members are formed by dividing a cylindrical body whose inner diameter is substantially equal to the outer diameter of the column in two, and a fixing plate having a plurality of screw insertion holes is provided in the vertical direction outside the openings of both fixing members. Has a screw insertion hole at the bottom of the outer wallSaidProvide brackets corresponding to the receiving parts of the lower support member.An upper support member that is detachably attached to the column; and a long bolt that is smaller in diameter than a screw insertion hole provided in the upper support member and is screwed into a screw hole provided in a receiving portion of the lower support member. The column is inserted into the steel pipe pile, and the screw insertion hole of the upper support member is fitted into the long bolt, and the column is fixed by adjusting the vertical direction, the inclination, and the horizontal position of the column..
[0012]
DETAILED DESCRIPTION OF THE INVENTION
[Embodiment 1]
FIG. 1 is an explanatory diagram of a column and steel pipe pile positioning device according to Embodiment 1 of the present invention.
In the figure, reference numeral 1 denotes a steel pipe pile built in the ground, and in the vicinity of the top of the pile, a plurality of screw holes 2 are provided in the vertical direction in at least three places at substantially equal intervals in the circumferential direction.
[0013]
Reference numeral 10 denotes a column whose lower part is embedded in the steel pipe pile 1, and 20 denotes a positioning device. In the positioning device 20, reference numeral 21 denotes a plurality of lower support members, as shown in FIGS. 2 (a) and 2 (b), a receiving portion 22 and a plate-like leg portion 23 which is joined to the lower surface thereof by welding. It is made up of. And the screw hole 24 is provided in the approximate center part of the receiving part 22, and the screw insertion hole 25 is provided in the leg part 23 corresponding to the screw hole 2 provided in the steel pipe pile 1. FIG.
[0014]
Reference numeral 30 denotes a ring-shaped upper support member joined to the column 10 by welding so that the column 10 is located near the top of the steel pipe pile 1 when the column 10 is joined to the steel pipe pile 1. As shown in FIG. 2 (c), when the lower support member 21 is attached to the steel pipe pile 1, screw insertion holes 31 are provided at positions corresponding to the screw holes 24 provided in the receiving portion 22.
Reference numeral 35 denotes a long bolt in which a screw is provided in the entire length and the lower part is screwed into the screw hole 24 of the lower support member 22, 36 is a washer, and 37 a, 37 b, and 37 c are nuts screwed to the long bolt 35. The screw insertion hole 31 provided in the upper support member 30 is formed to be considerably larger than the outer diameter of the long bolt 35.
[0015]
Next, an example of the positioning procedure between the column and the steel pipe pile by the positioning device configured as described above will be described with reference to FIG.
First, as shown to Fig.3 (a), the steel pipe pile 1 is built in the hole excavated in the ground G, and is slightly below from the lower end part of the pillar 10 inserted in the steel pipe pile 1, and the steel pipe pile 1 and the ground A gap (not shown) formed between G and the like is filled with concrete, mortar or the like 5 (hereinafter referred to as concrete or the like) and fixed. In this case, instead of concrete 5 or the like, the excavated soil when the hole is excavated or the improved backfilled soil (hereinafter referred to as excavated soil together) mixed with cement and water and stirred. Also good.
[0016]
Next, as shown in FIG. 3 (b), the screw insertion holes 25 provided in the legs 23 of the lower support member 21 are aligned with the screw holes 2 provided in the upper part of the steel pipe pile 1, and the screw insertion holes 25 are aligned. The inserted bolt 26 is screwed into the screw hole 2, and each lower support member 21 is attached to the steel pipe pile 1. And the long volt | bolt 35 is screwed in in the screw hole 24 of the receiving part 22 of each lower support member 21, respectively, and it stands and fixes with the nut 37a. Further, nuts 37b are screwed onto the respective long bolts 35 to substantially the same height, and a washer 36 is inserted thereon.
[0017]
Next, as shown in FIG. 3C, the lower part of the column 10 with the upper support member 30 attached at a predetermined position is inserted into the steel pipe pile 1, and the screw insertion hole 31 provided in the upper support member 30. Is fitted onto the long bolt 35 and placed on the nut 37b, and the nut 37c is loosely screwed onto the long bolt 35 via the washer 36 from above the upper support member 30.
And while adjusting the vertical direction and inclination of the pillar 10 with the nut 37b, the horizontal position is adjusted using the screw insertion hole 31 formed larger than the diameter of the long bolt 35, and the predetermined position in the steel pipe pile 1 is adjusted. The column 10 is set to the nut and fixed by the nut 37c. Thereby, positioning (temporary stop) of the pillar 10 with respect to the steel pipe pile 1 is complete | finished.
[0018]
In this state, as shown in FIG. 4A, concrete or the like 6 is filled between the steel pipe pile 1 and the column 10 and in the column 10.
After the concrete or the like 6 is solidified, the nuts 37a to 37c are loosened and the long bolts 35 are removed from the lower support member 21 and the upper support member 30 as shown in FIG. Next, the bolt 26 is loosened and the lower support member 21 is removed from the steel pipe pile 1. The state at this time is shown in FIG.
[0019]
In the present embodiment as described above, the positioning of the column 10 with respect to the steel pipe pile 1 does not require a joint member or the like as in the prior art, and the positioning can be accurately performed in a wide space by a simple operation. Therefore, the positioning device 20 can be easily attached and detached.
Further, since the lower support member 21, bolts, nuts, and the like can be reused for positioning another pillar, the cost can be reduced.
The upper support member 30 attached to the column 10 is left after the positioning device 20 is removed, but the outer diameter of the upper support member 30 is not significantly different from the outer diameter of the steel pipe pile 1, so that there is no problem in design and use. There is no obstacle to the above.
[0020]
FIG. 5 is an explanatory diagram in which a part of another example of the present embodiment is omitted. The same parts as those in the example of FIG. 1 are denoted by the same reference numerals, and description thereof is omitted.
In the example of FIG. 1, three nuts 37 a to 37 c are screwed into the long bolt 35 to position and fix the pillar 10, but in this example, the receiving portion 22 of the lower support member 21 and By inserting and removing a washer-like liner plate 38 having a notch 38a which can be inserted into and removed from a long bolt 35 as shown in FIG. 5B, for example, between the upper support member 30 and the vertical direction of the column 10 The nuts 37a and 37b and the washer 36 on the nut 37b in FIG. 1 are omitted.
[0021]
The construction procedure and effects of this example are almost the same as in the example of FIG. 1, but the use of a washer-like liner plate 38 in place of the nuts 37a and 37b makes the parts simpler and cheaper. Since the upper support member 30 can be disposed at a position close to the top of the steel pipe pile 1 after the construction, problems in appearance and problems in use can be further reduced.
[0022]
[Embodiment 2]
FIG. 6 is an explanatory view showing a column and a steel pipe pile positioning device with a part thereof omitted according to Embodiment 2 of the present invention. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted or simplified.
Reference numeral 41 denotes a lower support member. As shown in FIG. 7, as shown in FIG. 7, an inverted convex receiving portion 42 having a protruding portion 43 having a thickness t at the lower portion, and a lower surface of the receiving portion 42 on both sides of the protruding portion 43. And a pair of plate-like leg portions 44a and 44b joined by welding, a screw hole 45 is provided in the substantially central portion of the receiving portion 42, and a steel pipe pile is provided in the vertical direction of one leg portion 44a. A screw insertion hole 46 is provided corresponding to one screw hole 2, and a screw hole 47 is provided corresponding to the screw insertion hole 46 in the other leg portion 46 b. In addition, the thickness t of the protrusion 43 provided in the receiving portion 42 and, therefore, the distance between the leg portions 44 a and 44 b is formed to be substantially equal to the plate thickness of the steel pipe pile 1.
[0023]
A screw hole 57 is located below the column 10, near the top of the steel pipe pile 1 when the column 10 is joined to the steel pipe pile 1, and at a position corresponding to the screw hole 2 provided in the steel pipe pile 1. It is a plate-shaped fixed hardware provided and joined to the column 10 by welding.
[0024]
An upper support member 51 is formed in an L shape by a vertical piece 52 and a horizontal piece 53 as shown in FIG. 8, and the vertical piece 52 corresponds to a screw hole 57 provided in a fixed hardware 56. The horizontal piece 53 is provided with a screw insertion hole 55 having a diameter substantially larger than the outer diameter of the long bolt 35 corresponding to the screw hole 45 of the receiving portion 42 of the lower support member 41. It has been.
[0025]
Next, an example of the positioning procedure of the column and the steel pipe pile according to the present embodiment will be described with reference to FIGS.
First, as in the case of the first embodiment, the steel pipe pile 1 is built in the hole excavated in the ground, and the concrete 5 or the like is formed in the steel pipe pile 1 and the gap formed between the steel pipe pile 1 and the ground. Fill with excavated soil and fix.
[0026]
Next, as shown in FIG. 9A, a plurality of lower support members 41 are attached to the pile heads of the steel pipe pile 1. At the time of installation, the leg portions 44a and 44b of the lower support member 41 are fitted to the steel pipe pile 1 from the top of the steel pipe pile 1 and held, and the screw insertion holes 46 are aligned with the screw holes 2. Let Then, the bolt 26 is inserted into the screw insertion hole 46, screwed into the screw holes 2 and 47, and fixed integrally.
On the other hand, the vertical piece 52 of the upper support member 51 is brought into contact with the fixed hardware 56 provided on the column 10, the screw insertion hole 54 is aligned with the screw hole 57, and the bolt 58 inserted into the screw insertion hole 54 is screwed into the screw hole 57. And fix it together.
[0027]
Next, as shown in FIG. 9 (a), the lower part of the column 10 is inserted into the steel pipe pile 1, and as shown in FIG. 9 (b), the upper support is provided via a liner plate 38 of a preselected thickness. The horizontal pieces 53 of the member 51 are placed on the receiving portions 42 of the lower support member 41, respectively. Next, the long bolt 35 with the nut 37 c screwed on the upper part is inserted into the screw insertion hole 55 provided in the upper support member 51 and screwed into the screw hole 45 provided in the receiving part 42.
[0028]
Then, the vertical direction and inclination of the column 10 are adjusted by inserting / removing the liner plate 38, and the horizontal direction using the screw insertion hole 55 having a diameter larger than the diameter of the long bolt 35 provided in the upper support member 51. The position is adjusted, the column 10 is set at a predetermined position in the steel pipe pile 10, and is fixed by the nut 37c. Thereby, positioning (temporary stop) of the pillar 10 with respect to the steel pipe pile 1 is complete | finished. A long bolt 35 is screwed into the screw hole 45 of the receiving portion 42 of the lower support member 41, and the screw insertion hole 55 of the upper support member 51 is fitted into the long bolt 35 and temporarily secured by the nut 37c. The vertical piece 52 of the upper support member 51 may be attached to the fixed hardware 56 after the column 10 provided with the fixed hardware 56 is inserted into the steel pipe pile 1.
[0029]
In this state, as shown in FIG. 9B, concrete or the like 6 is filled between the steel pipe pile 1 and the column 10 and in the column 10.
After the concrete 6 has solidified, as shown in FIG. 9C, the bolts 26 and 58 are loosened, the lower support member 41 and the upper support member 51 are moved upward, and removed from the steel pipe pile 1 and the column 10. The state at this time is shown in FIG.
[0030]
The present embodiment configured as described above can obtain the same effect as that of the first embodiment, but further remains in the pillar 10 after the lower support member 41 and the upper support member 51 are removed. Since only the plate-shaped fixed metal 56 is used, not only does it become an obstacle to use, but also the pillar 10 that is superior in design can be realized.
[0031]
[Embodiment 3]
FIG. 10 is an explanatory view showing a part of a positioning device for a column and a steel pipe pile according to Embodiment 3 of the present invention. In addition, the same code | symbol is attached | subjected to the same part as Embodiment 1, 2, and description is abbreviate | omitted.
In this embodiment, the lower support member 21 has the same structure as the lower support member 21 of the first embodiment, and the upper support member 51 has the same structure as the upper support member 51 of the second embodiment. Is.
[0032]
Reference numeral 27 denotes a plate-like reinforcing plate provided with screw holes 28 corresponding to the screw holes 2 provided in the steel pipe pile 1. Both screw holes 2 and 28 are aligned and joined to the outer peripheral surface between the steel pipe piles 1 by welding. It is a thing. The reinforcement plate 27 is provided to reinforce the pile head of the steel pipe pile 1 and to engage the bolt 26 with a sufficiently long length to the steel pipe pile 1 having a relatively small thickness. You may provide in an internal peripheral surface. The reinforcing plate 27 can also be used in the first embodiment.
[0033]
The construction procedure of the present embodiment can be performed according to the construction procedure of the first and second embodiments. The liner plate 38 described in the second embodiment may be used in place of the nuts 37a and 37b that adjust and fix the position of the column 10.
According to the present embodiment, substantially the same effect as in the first and second embodiments can be obtained.
[0034]
[Embodiment 4]
FIG. 11 is an explanatory diagram of a column and steel pipe pile positioning device according to Embodiment 4 of the present invention. In addition, the same code | symbol as this is attached | subjected to the same part as Embodiment 1-3, description is abbreviate | omitted or simplified.
In the figure, 61 is a cylindrical sheath pipe made of, for example, a steel pipe having a diameter smaller than that of the steel pipe pile 1 and larger than that of the column 10. A sheet, a sheet or the like to which a release material 62 is applied, or a sheet to which concrete or the like does not adhere or hardly adhere is wound.
[0035]
Then, in a factory or the like, the lower part of the column 10 to which the upper support member 30 is attached is inserted into the sheath tube 61 and filled with concrete or the like 63 to be integrated to constitute the column member 60. The sheath pipe 61 may be formed of a cylindrical body made of a material to which concrete or the like does not adhere or hardly adhere, instead of a steel pipe, or by a tapered pipe gradually reduced in diameter toward the lower part. It may be formed.
[0036]
Next, an example of the construction procedure of this embodiment will be described with reference to FIGS.
First, as shown in FIG. 12A, the lower support member 21 is attached to the pile head of the steel pipe pile 1 built in the ground G in the same manner as in the first embodiment.
Next, as shown in FIG. 12 (b), the column member 60 in which the column 10 and the sheath tube 61 are integrated is inserted into the steel pipe pile 1, and the screw insertion hole 31 of the upper support member 30 is inserted into the long bolt 35. The nut is fitted and screwed onto the nut 37b. And like the case of Embodiment 1, the vertical direction of the pillar 10, an inclination, and the position of a horizontal direction are adjusted and fixed.
[0037]
Next, as shown in FIG. 12C, concrete or the like 6 is filled between the steel pipe pile 1 and the column member 60. Then, after the concrete 6 is solidified, as shown in FIG. 12 (d), if the long bolt 35 and the lower support member 21 are removed, the joining of the column 10 and the steel pipe pile 1 is completed. The state at this time is shown in FIG.
[0038]
When the column 10 is to be exchanged or removed, the column 10 is pulled up in the vertical direction by a construction machine or the like as shown in FIG. At this time, the outer peripheral surface of the sheath 61 is attached to the concrete 6 and the like, but since the adhesion between the inner peripheral surface of the sheath 61 and the concrete 63 is cut off by the release material 62, the surrounding concrete, etc. With 63, the column 10 can be pulled out with the sheath 61 left in the steel pipe pile 1.
In this case, as shown in FIG. 14, a jack 65 may be interposed between the lower support member 21 and the upper support member 30 and the column 10 may be pulled out.
[0039]
In addition, when joining a new column (including the one from which the concrete 6 of the pulled column 10 is removed) to the steel pipe pile 1, after cleaning the inside of the sheath 61 from which the old column 10 was pulled out, FIG. As shown in FIGS. 13 (d) and 13 (e), the lower support member 21 and the like are attached to the steel pipe pile 1 and the column 10 provided with the upper support member 30 is inserted into the sheath pipe 61. In the above-described manner, the positioning of the pillar 10, the placement of concrete or the like 6, and the removal of the lower support member 21 or the like may be performed.
[0040]
In the above description, the positioning device according to the first embodiment is used, but the positioning device according to the second or third embodiment may be used.
According to the present embodiment, it is possible to obtain substantially the same effects as those of the first to third embodiments. However, the column 10 can be easily replaced or removed by using the positioning device according to the present invention. be able to.
[0041]
[Embodiment 5]
15 is an explanatory view of a column and steel pipe pile positioning device according to Embodiment 5 of the present invention, and FIGS. 16A and 16B are a plan view and a side view showing the mounting state of the lower support member of FIG. is there. In addition, the same code | symbol is attached | subjected to the same part as Embodiment 1-4, and description is abbreviate | omitted.
In the first to fourth embodiments, the case where the upper support member 30 or the fixed hardware 56 is left on the pillar 10 even after the construction is shown, but in the present embodiment, the hardware or the like is left on the pillar 10 after the construction. It is configured so that it does not remain at all.
In the first to fourth embodiments, a long bolt 35 is screwed into a screw hole 24 provided in the receiving portion 22 of the lower support member 21, and the long support bolt 35 is provided on the upper support members 30 and 51. In the present embodiment, the long bolt 35 is omitted and the receiving portion 22 of the lower support member 21 is provided with a screw insertion hole. The lower support member 21 and the upper support member are fixed with bolts and nuts.
[0042]
In FIGS. 15 and 16, reference numeral 27 a denotes a reinforcing plate, which is not joined to the steel pipe pile 1 by welding as in the third embodiment, and is bolted between the steel pipe pile 1 and the leg portion 23 of the lower support member 21. , 26a. The bolt 26a also serves as an angle adjusting bolt. However, this may be omitted, and when the steel pipe pile 1 is thick, the reinforcing plate 27a may be omitted.
Reference numeral 24 a denotes a screw insertion hole provided in the receiving portion 22 of the lower support member 21.
[0043]
Reference numeral 70 denotes an upper support member. As shown in FIGS. 17A and 17B, a cylindrical body such as a steel pipe (short pipe) having an inner diameter substantially equal to the outer diameter of the column 10 is divided into two in the vertical direction. A pair of fixing members 71a and 71b having a semicircular cross section formed, and a plurality of screw insertion holes 73 in the vertical direction, on the same plane as the opening on both sides of the opening ends of the fixing members 71a and 71b, and A pair of fixing plates 72a and 72b mounted in the vertical direction and screw insertion holes 75 having a diameter larger than the outer diameter of the bolt 78 are provided, and are horizontally disposed at approximately 90 ° intervals at the lower part of the outer walls of both the fixing members 71a and 71b. And a bracket 74 joined by welding. Reference numeral 76 denotes a reinforcing rib welded between the fixing members 71a and 71b and the bracket 74, but this may be omitted. In addition, 77 and 78 are bolts, and 64 in FIG. 15 is a vertical rib for preventing rotation provided at the bottom of the column member 60.
[0044]
Next, an example of the construction procedure of the present embodiment will be described with reference to FIG.
First, as shown to Fig.18 (a), the leg part 23 of the lower support member 21 is bolted to the outer periphery of the pile head of the steel pipe pile 1 built in the ground G via the reinforcement plate 27a at intervals of about 90 °. 26 (see FIG. 16). In this case, the reinforcing plate 27 a may be omitted and the leg portion 23 of the lower support member 21 may be directly bolted to the steel pipe pile 1.
[0045]
Further, as shown in FIG. 18B, the fixing members 71a and 71b constituting the upper support member 70 are fitted to the outer wall of the column 10 so as to face each other slightly above the sheath 61 of the column member 60, The fixing plates 72a and 72b are brought into contact with each other. Then, a bolt 77 is inserted into a screw insertion hole 73 provided in the fixing plates 72a and 72b, and a nut is screwed and fixed. As a result, the fixing members 71 a and 71 b and therefore the upper support member 70 are firmly fixed to the outer periphery of the column 10. In addition, you may interpose packing etc. between the pillar 10 and fixing member 71a, 71b as needed.
[0046]
Next, as shown in FIG. 18C, the lower part of the column member 60 is inserted into the steel pipe pile 1, and the bracket 74 of the upper support member 70 is placed on the receiving part 22 of the lower support member 21 through the liner plate 38. The screw insertion holes 24a and 75 are aligned with each other. Then, after inserting the bolt 78 into the screw insertion hole 75 through 24a and adjusting the vertical direction, inclination, and horizontal position of the column member 60, a nut is screwed into the bolt 78 from below the receiving portion 22 so as to be integrated. Fix it. The state at this time is shown in FIG.
[0047]
Hereinafter, in the same manner as in the other embodiments, concrete or the like 6 is filled between the steel pipe pile 1 and the column member 60, and after the concrete or the like 6 is solidified, the lower support member 21 (including the reinforcing plate 27a) is provided. At the same time, the upper support member 70 is removed from the column 10.
Thereby, the steel pipe pile 1 and the pillar 10 which do not have a protrusion part in the outer periphery are joined integrally. In addition, what is necessary is just to perform in the procedure similar to the case of Embodiment 4 when replacing | exchanging or removing the pillar 10. FIG.
[0048]
In the above description, the case where the upper support member 70 including the fixing members 71a and 71b having a semicircular cross section is detachably attached to the column 10 constituting the column member 60 has been described. Even when the column 10 is directly joined to the steel pipe pile 1, the upper support member 70 according to the present embodiment can be used.
In the first to fourth embodiments, a long bolt screwed into the receiving portion of the lower support member is used for positioning the pillar and fixing the lower support member and the upper support member. Then, as in the present embodiment, the positioning of the columns and the lower support member and the upper support member may be fixed by bolts and nuts.
[0049]
According to the present embodiment, the same effects as those of the first to fourth embodiments can be obtained, but further, since the hardware used for the positioning device does not remain on the outer periphery of the steel pipe pile and the column after construction, it is used. In addition, it is possible to obtain a joint structure between a column and a steel pipe pile that is superior in appearance and design without being obstructed above.
Moreover, since all the members used for the positioning device can be reused, the economic effect is great.
Furthermore, since the lower support member and the upper support member are fixed by bolts and nuts, positioning, fixing, and removal operations are easy.
[0050]
In each of the above-described embodiments, the case where the circular cross-section column 10 is joined to the steel pipe pile 1 has been described.
[0051]
Since the positioning device according to the present invention is configured as described above, not only can the pillar and the steel pipe pile be positioned accurately, but also can be removed after the construction, so that there is no inconvenience in terms of design. Moreover, since it can be reused after construction, the economic effect is great.
Further, since the positioning device is formed of relatively small parts and each part can be securely tightened with bolts and nuts, it is highly safe against external force at the temporary fixing stage and is easy to attach and detach.
[0052]
Further, by adjusting the height positions of the plurality of nuts 37b screwed to the long bolts 35 in advance, or by arranging the liner plate 38 having a thickness necessary for the long bolts 35 or the bolts 77, the upper support By lowering the members 30 and 51 until they abut against the nut 37b or the liner plate 38, the basic positioning in the vertical direction can be performed, and the bolt insertion holes 31 and 55 of the upper support members 30 and 51 are long bolts. By forming larger than the diameter of 35 or the bolt 77, the horizontal position of the column 10 can be easily adjusted, so that the column 10 and the steel pipe pile 1 can be positioned with high accuracy in a short time.
[0053]
【The invention's effect】
  The column and steel pipe pile positioning device according to the present invention includes a receiving portion having a screw hole or a screw insertion hole.as well asA plurality of lower support members comprising leg portions, which are removably attached to the outer peripheral surface of the steel pipe pile, and screw insertion holes corresponding to the screw holes provided in the receiving portions of the lower support members are provided. A ring-shaped upper support member fixed to the outer periphery of the column, or an L-shaped or semicircular cross-sectional upper support member that is detachably attached to the outer periphery of the column, and a screw insertion hole provided in these upper support members It has a small diameter and has a long bolt screwed into a screw hole provided in the receiving portion of the lower support member or a bolt inserted into the screw insertion hole, and inserts the column into the steel pipe pile, and the screw of the upper support member Fit the insertion hole into the long bolt, or insert the bolt into the screw insertion hole of the lower support member and upper support member, and adjust the vertical and tilting and horizontal position of the columndo itSince they are fixed, the column and the steel pipe pile can be positioned easily and with high accuracy, and after construction, they can be removed and reused, so that a positioning device with a large economic effect can be obtained.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a column and steel pipe pile positioning apparatus according to Embodiment 1 of the present invention.
2 is a plan view showing a mounting state of the lower support member of FIG. 1, a perspective view, and a plan view showing a mounting state of the upper support member. FIG.
FIG. 3 is an explanatory diagram of an example of a construction procedure according to the first embodiment.
FIG. 4 is an explanatory diagram of an example of a construction procedure according to the first embodiment.
FIG. 5 is an explanatory diagram in which a part of another example of the first embodiment is omitted.
FIG. 6 is an explanatory diagram in which a part of a column and steel pipe pile positioning device according to Embodiment 2 of the present invention is omitted.
7 is a perspective view of the lower support member of FIG. 6. FIG.
FIG. 8 is a perspective view of the upper support member of FIG.
FIG. 9 is an explanatory diagram of an example of a construction procedure according to the second embodiment.
FIG. 10 is an explanatory diagram in which a part of a positioning device for columns and steel pipe piles according to Embodiment 3 of the present invention is omitted.
FIG. 11 is an explanatory diagram in which a part of a column and steel pipe pile positioning device according to a fourth embodiment of the present invention is omitted.
FIG. 12 is an explanatory diagram of an example of a construction procedure according to the fourth embodiment.
FIG. 13 is an explanatory diagram of an example of a construction procedure according to the fourth embodiment.
FIG. 14 is an explanatory view showing another example of the column pulling means according to the fourth embodiment.
FIG. 15 is an explanatory diagram in which a part of a column and steel pipe pile positioning device according to a fifth embodiment of the present invention is omitted.
16 is a plan view and a side view showing an attachment state of the lower support member of FIG. 15. FIG.
17 is a plan view and a side view of the upper support member of FIG. 15. FIG.
FIG. 18 is an explanatory diagram of a construction procedure according to the fifth embodiment.
[Explanation of symbols]
1 Steel pipe pile
10 pillars
20 Positioning device
21, 41 Lower support member
22,42 receiving part
24a, 31, 55, 75 Screw insertion hole
30, 51, 70 Upper support member
35 long bolt
37a, 37b, 37c nut
38 Liner plate
60 Column members
61 sheath tube
62 Release material
71a, 71b fixing member
72a, 72b fixed plate
74 Bracket

Claims

A plurality of lower support members comprising a receiving part and a leg part having a screw hole, the leg part being detachably attached to the outer peripheral surface of the steel pipe pile;
A screw insertion hole corresponding to the screw hole provided in the receiving portion of the lower support member, and a ring-shaped upper support member fixed to the outer periphery of the column;
A long bolt that is smaller in diameter than the screw insertion hole provided in the upper support member and screwed into the screw hole provided in the receiving portion of the lower support member;
The column is inserted into the steel pipe pile, the screw insertion hole of the upper support member is fitted to the long bolt, and the vertical direction, inclination, and horizontal position of the column are adjusted and fixed. Column and steel pipe pile positioning device.

A plurality of lower support members comprising leg portions made of a pair of plates that are fitted from a pile head portion of a receiving portion having a screw hole and a steel pipe pile to detachably hold the peripheral wall;
A screw insertion hole corresponding to the screw hole provided in the receiving portion of the lower support member, and a ring-shaped upper support member fixed to the outer periphery of the column;
A long bolt that is smaller in diameter than the screw insertion hole provided in the upper support member and screwed into the screw hole provided in the receiving portion of the lower support member;
The column is inserted into the steel pipe pile, the screw insertion hole of the upper support member is fitted to the long bolt, and the vertical direction, inclination, and horizontal position of the column are adjusted and fixed. Column and steel pipe pile positioning device.

A receiving portion having a screw hole, and a leg portion detachably attached to the outer peripheral surface of the steel pipe pile, or a leg portion made of a pair of plates that are fitted from the pile head of the steel pipe pile and removably hold the peripheral wall. A plurality of lower support members;
A plurality of L-shaped upper support members comprising a horizontal piece provided with a screw insertion hole corresponding to a screw hole provided in a receiving part of the lower support member and a vertical piece detachably attached to a column;
A long bolt that is smaller in diameter than the screw insertion hole provided in the upper support member and screwed into the screw hole provided in the receiving portion of the lower support member;
The column is inserted into the steel pipe pile, the screw insertion hole of the upper support member is fitted to the long bolt, and the vertical direction, inclination, and horizontal position of the column are adjusted and fixed. Column and steel pipe pile positioning device.

A receiving portion having a screw hole, and a leg portion detachably attached to the outer peripheral surface of the steel pipe pile, or a leg portion made of a pair of plates that are fitted from the pile head of the steel pipe pile and removably hold the peripheral wall. A plurality of lower support members;
A pair of fixing members are formed by dividing a cylindrical body whose inner diameter is substantially equal to the outer diameter of the column in two, and a fixing plate having a plurality of screw insertion holes in the vertical direction outside the openings on the outer sides of the two fixing members, respectively. An upper support member that has a screw insertion hole in the lower part of the outer wall and is provided with a bracket corresponding to the receiving part of the lower support member, and is detachably attached to the column;
A long bolt that is smaller in diameter than the screw insertion hole provided in the upper support member and screwed into the screw hole provided in the receiving portion of the lower support member;
The column is inserted into the steel pipe pile, the screw insertion hole of the upper support member is fitted to the long bolt, and the vertical direction, inclination, and horizontal position of the column are adjusted and fixed. Column and steel pipe pile positioning device.