JP2004300888A - Irregularity correcting tool for steel-frame column - Google Patents

Irregularity correcting tool for steel-frame column Download PDF

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Publication number
JP2004300888A
JP2004300888A JP2003098201A JP2003098201A JP2004300888A JP 2004300888 A JP2004300888 A JP 2004300888A JP 2003098201 A JP2003098201 A JP 2003098201A JP 2003098201 A JP2003098201 A JP 2003098201A JP 2004300888 A JP2004300888 A JP 2004300888A
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Japan
Prior art keywords
jig
new
erection piece
column
steel
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JP2003098201A
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JP3754967B2 (en
Inventor
Masato Fujisawa
正人 藤澤
Hideyuki Fujisawa
秀之 藤澤
Tetsuya Hoshiba
徹也 干場
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Daisho Sangyo Co Ltd
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Daisho Sangyo Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an irregularity correcting tool which can correct an irregularity of a newly-built steel-frame column without using a crane, so that the construction period is shortened by a quick correction of the irregularity of the newly-built column and that verticality of the newly-built steel-frame column is further improved. <P>SOLUTION: The irregularity correcting tool is composed in such a way that an apparatus body 21 is mounted to a lower-side erection piece 5 of the existing steel-frame column 1, the arm part 25 is extended to the side of an upper-side erection piece 6 which is provided at the lateral side of the newly-built steel-frame column 2 and one lateral side of the upper erection piece 6 of the newly-built steel-frame column 2 is pushed by a jack device installed between the arm part 25 and the upper-side erection piece 6. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、鉄骨柱を接続するに際し、その目違いを矯正する目違い矯正治具に関するものである。
【0002】
【従来の技術】
高層ビル等の建設に際しては、図5の如く、既設の鉄骨柱1(以下、既設柱1という。)の各々の上端部に新設の鉄骨柱2(以下、新設柱2という。)を連結し、かつ、新設柱2の相互間に鉄骨梁3を渡して、既設柱1の上に新設柱2及び鉄骨梁3をボルトによる仮組み・溶接してから、既設柱1及び新設柱2を溶接により接合している。既設柱1及び新設柱2を接合するときには、新設柱2の鉛直性を確保する必要があり、新設柱2の建直しを必ず行っている。
【0003】
従来、新設柱2を建直す際には、例えば図5の如く、既設柱1及び新設柱2を連結しつつ新設柱2の目違い及び傾きを矯正する建直し治具4を使用していた(例えば特許文献1参照)。この建直し治具4は、図6の如く、既設柱1及び新設柱2の各側面に溶接してある下側エレクションピース5及び上側エレクションピース6の各々の挿通孔(図示略)に固定ボルト7,8を挿し通して取付けてある。
【0004】
新設柱2の目違いは、新設柱2をクレーンでもって吊上げた状態で、下側水平押圧ボルト9,10,11及び上側水平押圧ボルト12,13,14でもって下側エレクションピース5及び上側エレクションピース6の側面を押圧して新設柱2を水平移動させることによって矯正する。
【0005】
新設柱2の傾きは、上下のエレクションピース5,6の相互間に嵌り込む油圧ジャッキ装置15でもって新設柱2の一側面(例えば右側面)の上側エレクションピース6を押上げると共に、新設柱2の対向する側面(例えば左側面)の上側エレクションピース6の上面を鉛直押圧ボルト16でもって押下げることによって矯正する。
【0006】
【特許文献1】
特開2002−047806号公報
【0007】
【発明が解決しようとする課題】
ところが、上記の如く新設柱2の建て入れの際に建直しを行なっても、新設柱2の相互の間隔が所期の間隔になっていないことがあった。このことは、新設柱2の目違い矯正時に上記の各水平押圧ボルト9〜14の締付けが緩いために、既設柱1の上端部に新設柱2を載置するとき又は新設柱2の傾きを矯正するときに新設柱2が僅かにずれること、或いは施工管理の不備などが原因であると考えられる。
【0008】
従来の建直し治具4は、上記の如く水平押圧ボルト9〜14の締付けにより、新設柱2の目違いを矯正するものであるから、矯正対象の新設柱をクレーンで吊上げなければ、その目違いを矯正できない。既設柱1に連結して建直しを終えた新設柱2からは、他の新設柱を他の既設柱に連結するために、クレーンを取外してある。このため、従来の建直し治具4では、全ての新設柱2を建て入れた後に新設柱2の目違いが見つかると、矯正対象の新設柱を再度クレーンで吊上げて目違いの矯正をやり直す手間と時間を要するので、工期が遅延するという問題があった。
【0009】
また、新設柱2及び鉄骨梁3を仮組みした後、或いは新設柱2及び鉄骨梁3を溶接した後に、新設柱2の傾きや目違いが見つかることもあった。このことは、鉄骨製作精度の悪さ、即ち新設柱2及び鉄骨梁3の長さ寸法又は図示外の仮組み用ボルト孔の穿設箇所などの精度誤差や、溶接による鉄骨の収縮が原因であると考えられる。このように新設柱2及び鉄骨梁3の仮組み以降に新設柱2の傾きや目違いが見つかると、従来の建直し治具4では、油圧ジャッキ装置15により新設柱2の傾きを矯正することはできても、新設柱2をクレーンで吊上げることができないので、新設柱2の目違いを矯正することができないという問題があった。
【0010】
本発明はかかる課題に鑑み創案するに至ったものであって、その目的は、クレーンを使用せずに新設柱の目違いを矯正可能な目違い矯正治具を提供することにより、新設柱の目違いを迅速に矯正して工期短縮を図ると共に、新設柱の鉛直性をより一層向上させることにある。
【0011】
【課題を解決するための手段】
本発明に係る鉄骨柱の目違い矯正治具は、既設の鉄骨柱の上端に新設の鉄骨柱を連結した状態で新設の鉄骨柱の目違いを矯正する目違い矯正治具であって、既設の鉄骨柱の側面に設けた下側エレクションピースに取付ける基台部から新設の鉄骨柱の側面に設けた上側エレクションピースの側方にアーム部を延在させた治具本体と、前記アーム部及び前記上側エレクションピースとの相互間に設置するジャッキ装置とを備えたことを特徴としている。本発明の目違い矯正治具は、上記の建直し具等により既設の鉄骨柱及び新設の鉄骨柱を連結した状態で、前記治具本体を既設の鉄骨柱の下側エレクションピースに取付けて前記ジャッキ装置を作動させると、前記治具本体のアーム部と前記新設の鉄骨柱の上側エレクションピースとが離間して前記新設の鉄骨柱が水平移動する。このように本発明は、ジャッキ装置によって前記新設の鉄骨柱を水平移動させるようにしたから、前記新設の鉄骨柱をクレーンで吊上げなくても目違いの矯正を行なえる。
【0012】
また、本発明に係る鉄骨柱の目違い矯正治具は、前記治具本体のアーム部から前記上側エレクションピースに向けてジャッキ取付部を設けたことを特徴としている。治具本体に設けたジャッキ取付部にジャッキ装置を取付けると、新設の鉄骨柱の上側エレクションピースに対するジャッキ装置の作用点が所定の位置に定まるから、新設の鉄骨柱の移動方向の精度を高めることができる。
【0013】
また、本発明に係る鉄骨柱の目違い矯正治具は、前記ジャッキ取付部の位置を前記治具本体のアーム部に沿って上下方向に変更可能に構成したことを特徴としている。このようにジャッキ取付部の位置を変更可能に構成すると、新設の鉄骨柱の上側エレクションピースに対するジャッキ装置の作用点を所期の位置に変更することができる。これにより既設の鉄骨柱及び新設の鉄骨柱に設けた上下のエレクションピースの間隔が一定である所定の建直し治具のみならず、前記上下のエレクションピースの間隔が相違する他の建直し治具にも、本発明の目違い矯正治具を適用することができる。
【0014】
また、本発明に係る鉄骨柱の目違い矯正治具は、前記治具本体のアーム部から前記上側エレクションピースに向けて前記ジャッキ装置の水平位置を変更する水平位置決め手段を設けたことを特徴としている。この水平位置決め手段は、その先端部を前記治具本体のアーム部から前記上側エレクションピースに向けて突出させ、該先端部と上側エレクションピースとの間隔を変更可能に構成したものである。このような水平位置決め手段を治具本体に設けることにより、長さの異なるジャッキ装置を使用しても、その性能を十分に発揮させることができる。
【0015】
【発明の実施の形態】
以下、図面を参照しつつ本発明に係る目違い矯正治具の実施形態について説明する。
【0016】
本発明の目違い矯正治具は、図1及び図2の如く、既設柱1及び新設柱2を建直し治具4等の連結具によって連結した状態で、新設柱2の目違いを矯正するものであって、治具本体21、押え板22及びジャッキ装置23を備えている。
【0017】
治具本体21は、図2の如く、既設柱1の側面に設けた下側エレクションピース5に取付ける基台部24の右端部から上方へアーム部25を延設した鉄鋼等の剛性素材からなる部材である。基台部24は、水平部26の左端部及び中間部から下方へ第1鉛直部27及び第2鉛直部28を延設し、かつ、水平部26の右端部及び第2鉛直部28の下端部の間に補強部29を設けてある。第1鉛直部27は、第2鉛直部28よりも短く形成してある。第2鉛直部28の左側面には、第1鉛直部27の下端部よりも下方に、押え板22の取付ボルト30を螺挿するボルト孔31を設けてある。アーム部25は、新設柱2の側面に設けた上側エレクションピース6の側方に延在する如く形成してあり、その左側面からは治具本体21の左端部に向けて水平部26と平行にジャッキ取付部32を延設してある。
【0018】
押え板22は、取付ボルト30の挿通孔33を有する鉄鋼等の剛性素材からなる厚肉平板状の部材で、治具本体21の第1鉛直部27の下端部から下方へ延在する如く、第2鉛直部28に取付ボルト30によって脱着可能に取付けてある。
【0019】
ジャッキ装置23は、油圧油ホース34の先端に図示外の操作部を有する分離式油圧ジャッキ装置で、治具本体21のジャッキ取付部32の上面部に載置して取付バンド35によって固定してある。
【0020】
次に、本発明の目違い矯正治具を用いて新設柱2の目違いを矯正する工程について説明する。
【0021】
まず、図6の如く、新設柱2の建て入れ時に、適宜の建直し治具(例えば従来例の建直し治具4)を使用して、既設柱1及び新設柱2を連結すると共に新設柱2を建直す。各既設柱1の上部にそれぞれ新設柱2を立設した段階、新設柱2の相互間に鉄骨梁3(図5参照)を仮組みした段階、新設柱2及び鉄骨梁3を溶接した段階の各々で、各新設柱2の位置及び向きを計測する。これら各段階で新設柱2の目違いが見つかると、本目違い矯正治具を既設柱1の下側エレクションピース5に取付けて新設柱2の目違いを矯正する。
【0022】
本目違い矯正治具は、次のようにして取付ける。まず、治具本体21から押え板22を取外した状態で、図6に示す建直し治具4と既設柱1及び新設柱2との間で、かつ、上下のエレクションピース5,6の相互間に形成された隙間17に、治具本体21の左端側(第1鉛直部27側)から挿入する。図2の如く、第1鉛直部27及び第2鉛直部28間の溝36に下側エレクションピース5の上部を嵌入させ、下側エレクションピース5の左側面に押え板22を当接させると共に、押え板22の挿通孔33及び下側エレクションピース5の挿通孔5aに取付ボルト30を挿し通して第2鉛直部28のボルト孔31に螺挿する。これにより治具本体21が、図1及び図2の如く、既設柱1の下側エレクションピース5に固定される。このとき、ジャッキ装置23は、治具本体21のジャッキ取付部32に取付けてあってもよいし、取外しておいてもよい。
【0023】
治具本体21を既設柱1の下側エレクションピース5に取付けて、ジャッキ装置23を治具本体21のアーム部25及び新設柱2の上側エレクションピース6の間に設置した後、ジャッキ装置23の水平位置を定める。すなわち、ジャッキ装置23の後端部をアーム部25に当接させて、ジャッキ装置23の押圧ピストン37と新設柱2の上側エレクションピース6との間の隙間が広いならば、ジャッキ装置23及びアーム部25の間に図示外の板片を挟み込んで、ジャッキ装置23の水平位置合わせを行なう。
【0024】
上記の如く、本目違い矯正治具を既設柱1の下側エレクションピース5に取付けた状態で、ジャッキ装置23を作動させると、ジャッキ装置23の押圧ピストン37が伸び出て治具本体21のアーム部25及び新設柱2の上側エレクションピース6が離間する。このとき、治具本体21を既設柱1の下側エレクションピース5に固定してあるので、アーム部25の位置は変化せず、上側エレクションピース6を押圧された新設柱2が水平移動する。これにより新設柱2の目違いを矯正することができる。
【0025】
なお、新設柱2の移動方向は、本発明の目違い矯正治具の取付箇所及び上側エレクションピース6の押圧方向により、適宜変更することができる。例えば新設柱2を軸周りに回転させる場合には、図3(A)の如く、既設柱1の各側面に設けた下側エレクションピース5の左右一側面に、或いは既設柱1の前後側面又は左右側面に設けた下側エレクションピース5の左右一側面に、本発明の目違い矯正治具を取付ける。新設柱2をその一側面の法線方向に水平移動させる場合は、同図(B)の如く、既設柱1の表裏一対の側面(前後側面又は左右側面)のうち、表側面に設けた下側エレクションピース5の左右一側面及び裏側面に設けた下側エレクションピース5の他側面に、本発明の目違い矯正治具を取付ける。新設柱2をその対角線方向に水平移動させる場合は、図(C)の如く、既設柱1の隣合う一対の側面のうち、一方の側面に設けた下側エレクションピース5の左右一側面及び他方の側面に設けた下側エレクションピース5の他側面に、本発明の目違い矯正治具を取付ける。図示は省略するが、既設柱1の一側面に設けた下側エレクションピース5のみに本発明の目違い矯正治具を取付けて目違いの矯正を行なうことも可能である。
【0026】
また、上記の目違い矯正工程は、各既設柱1の上部にそれぞれ新設柱2を立設した段階では、目違いの矯正が必要な新設柱2に対して個別に行なっていくことができる。新設柱2の相互間に鉄骨梁3(図5参照)を仮組みした段階や、新設柱2及び鉄骨梁3を溶接した段階では、1本又は複数本の主要な新設柱2の目違いを矯正することで、他の新設柱2の目違いを同時に矯正することもできる。したがって、本発明の目違い矯正治具は、所定の新設柱2の目違いを矯正した後、他の新設柱2の目違いの矯正に使用することができるので、従来例で説明した建直し治具4の如く、新設柱2の本数の4倍に相当する個数を用意しておく必要はない。
【0027】
以上、本発明の一実施形態につき説明したが、本発明は前記実施形態に限定されることなく種々の変形が可能であって、例えばジャッキ取付部32の位置を上下方向に変更可能に構成することや、ジャッキ装置23の水平位置を調整する水平位置決め手段を設けることも可能である。具体的には、図4の如く、ジャッキ取付部32を取付ボルト38によってアーム部25に脱着可能に取付けると共にその取付箇所、即ち取付ボルト38の挿通孔39をアーム部25の上下方向に複数箇所設けてある。また、アーム部25の左右方向に複数のボルト孔40を設け、該ボルト孔40にジャッキ装置23の水平位置決め手段としての水平位置調整ボルト41を螺挿してある。なお、ジャッキ取付部32の位置を上下方向に変更しない場合には、水平位置調整ボルト41のボルト孔40は1つでも構わない。
【0028】
このようにジャッキ取付部32の位置を変更可能に構成すると、新設柱2の上側エレクションピース6に対するジャッキ装置23の作用点を所期の位置に変更することができる。これにより既設柱1及び新設柱2に設けた上下のエレクションピース5,6の間隔が異なる建直し治具4等の連結具にも本目違い矯正治具を適用でき、本目違い矯正治具の汎用性が向上する。
【0029】
また、アーム部25にジャッキ装置23の水平位置を調整する水平位置決め手段を設けておくと、ジャッキ装置23の水平位置を調整するためにジャッキ装置23及びアーム部25の間に挟み込む前記板片がなくても、ジャッキ装置23の水平位置を自在に変更することができ、しかもジャッキ装置23の水平位置を微調整することができる。これによりジャッキ装置23の出力又はその製造メーカの違いにより長さの異なる種々のジャッキ装置23を使用しても、その性能を十分に発揮させることができる。
【0030】
なお、上記実施形態では、既設柱1及び新設柱2の各側面にそれぞれ1個のエレクションピース5,6を設けた場合について説明したが、本発明は、既設柱1及び新設柱2の各側面に複数個のエレクションピース5,6を設けた場合であっても適用できる。
【0031】
また、上記の変形例の如く、ジャッキ取付部32の位置を上下方向に変更することは、ジャッキ取付部32を着脱自在に構成してその取付箇所を変更することに限らず、ジャッキ取付部32をアーム部25にスライド自在に取付けると共に任意の位置で固定可能に構成することでも実現できる。
【0032】
【発明の効果】
本発明は前述の如く、既設の鉄骨柱の下側エレクションピースに治具本体を取付けて、新設の鉄骨柱の側面に設けた上側エレクションピースの側方にアーム部を延在させると共に、前記アーム部及び前記上側エレクションピースとの相互間に設置したジャッキ装置でもって、新設の鉄骨柱の上側エレクションピースの一側面を押圧するように構成したので、前記新設の鉄骨柱をクレーンで吊上げなくてもその目違いの矯正を行なうことができる。
【0033】
また、前記治具本体のアーム部から前記上側エレクションピースに向けてジャッキ取付部を設けたので、新設の鉄骨柱の上側エレクションピースに対するジャッキ装置の作用点が所定の位置に定まるから、新設の鉄骨柱の移動方向の精度を高めることができる。
【0034】
また、前記ジャッキ取付部の位置を前記治具本体のアーム部に沿って上下方向に変更可能に構成したので、新設の鉄骨柱の上側エレクションピースに対するジャッキ装置の作用点を所期の位置に変更することができる。
【0035】
また、前記治具本体のアーム部から前記上側エレクションピースに向けて前記ジャッキ装置の水平位置を変更する水平位置決め手段を設けたので、前記ジャッキ装置の水平位置を微調整することができる。
【図面の簡単な説明】
【図1】本発明に係る目違い矯正治具を既設の鉄骨柱の下側エレクションピースに取付けた状態を示す全体図である。
【図2】図1のA−A線断面図で、本目違い矯正治具を既設の鉄骨柱の下側エレクションピースに取付けた状態を示す正面図である。
【図3】(A)〜(C)は、それぞれ本発明に係る目違い矯正治具による新設の鉄骨柱の移動方向を示す平面図である。
【図4】本発明に係る目違い矯正治具の変形例を示す正面図である。
【図5】既設の鉄骨柱及び新設の鉄骨柱の接合工程の説明図である。
【図6】従来技術による新設の鉄骨柱の建直し工程の説明図である。
【符号の説明】
1 既設の鉄骨柱
2 新設の鉄骨柱
4 建直し治具
5 下側エレクションピース
6 上側エレクションピース
21 治具本体
22 押え板
23 ジャッキ装置
24 基台部
25 アーム部
32 ジャッキ取付部
41 水平位置決め手段
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a misalignment correction jig that corrects misalignment in connecting steel columns.
[0002]
[Prior art]
When constructing a high-rise building or the like, as shown in FIG. 5, a new steel column 2 (hereinafter referred to as new column 2) is connected to the upper end of each of the existing steel columns 1 (hereinafter referred to as existing column 1). In addition, the steel beam 3 is passed between the new columns 2, the new column 2 and the steel beams 3 are temporarily assembled and welded on the existing column 1 by bolts, and then the existing column 1 and the new column 2 are welded. It is joined by. When joining the existing pillar 1 and the new pillar 2, it is necessary to secure the verticality of the new pillar 2, and the new pillar 2 is always rebuilt.
[0003]
Conventionally, when rebuilding a new pillar 2, as shown in FIG. 5, for example, a rebuilding jig 4 that corrects misalignment and inclination of the new pillar 2 while connecting the existing pillar 1 and the new pillar 2 has been used. (See, for example, Patent Document 1). As shown in FIG. 6, the rebuilding jig 4 is provided with fixing bolts in the insertion holes (not shown) of the lower erection piece 5 and the upper erection piece 6 which are welded to the respective sides of the existing column 1 and the new column 2. 7 and 8 are inserted and attached.
[0004]
The difference between the new column 2 and the new column 2 is that the new column 2 is lifted by a crane, and the lower erection piece 5 and the upper erection are held by the lower horizontal pressing bolts 9, 10, 11 and the upper horizontal pressing bolts 12, 13, 14. The correction is performed by pressing the side surface of the piece 6 and horizontally moving the new pillar 2.
[0005]
The inclination of the new pillar 2 is adjusted by pushing up the upper erection piece 6 on one side surface (for example, the right side) of the new pillar 2 with the hydraulic jack device 15 fitted between the upper and lower erection pieces 5 and 6. The upper surface of the upper erection piece 6 on the opposite side surface (for example, the left side surface) is pressed down by a vertical pressing bolt 16 to correct the erection piece.
[0006]
[Patent Document 1]
JP-A-2002-047806
[Problems to be solved by the invention]
However, even when rebuilding is performed when the new pillars 2 are installed as described above, the intervals between the new pillars 2 may not be the desired intervals. This is because when the new pillar 2 is misaligned, the tightening of the horizontal pressing bolts 9 to 14 is loose, so that the new pillar 2 is placed on the upper end of the existing pillar 1 or the inclination of the new pillar 2 is reduced. It is considered that the cause is that the newly-installed pillar 2 is slightly displaced during the correction, or that the construction management is inadequate.
[0008]
The conventional rebuilding jig 4 corrects misalignment of the newly installed column 2 by tightening the horizontal pressing bolts 9 to 14 as described above. I cannot correct the difference. The crane has been removed from the new pillar 2 which has been connected to the existing pillar 1 and has been rebuilt, in order to connect the other new pillar to the other existing pillar. For this reason, in the conventional rebuilding jig 4, when misalignment of the new pillar 2 is found after all the new pillars 2 have been erected, it is troublesome to lift the new pillar to be corrected again by the crane and correct the misalignment again. And it takes time, there is a problem that the construction period is delayed.
[0009]
Further, after the new column 2 and the steel beam 3 are temporarily assembled, or after the new column 2 and the steel beam 3 are welded, the inclination and misalignment of the new column 2 may be found. This is due to poor precision in steel frame production, that is, an error in the accuracy of the length of the new column 2 and the steel beam 3 or the location of a temporary assembling bolt hole (not shown) and contraction of the steel frame due to welding. it is conceivable that. If the inclination or misalignment of the new column 2 is found after the temporary assembling of the new column 2 and the steel beam 3 in this way, in the conventional rebuilding jig 4, the inclination of the new column 2 is corrected by the hydraulic jack device 15. However, since the new pillar 2 cannot be lifted by the crane, there is a problem that misalignment of the new pillar 2 cannot be corrected.
[0010]
The present invention has been made in view of such a problem, and an object of the present invention is to provide a misalignment correction jig capable of correcting misalignment of a newly installed column without using a crane, thereby providing a new column. The aim is to correct the misalignment quickly and shorten the construction period, and to further improve the verticality of the new pillar.
[0011]
[Means for Solving the Problems]
The misalignment correction jig for a steel column according to the present invention is a misalignment correction jig for correcting misalignment of a newly installed steel column in a state where a new steel column is connected to an upper end of the existing steel column. A jig body having an arm extending from a base attached to a lower erection piece provided on the side surface of the steel column to the side of an upper erection piece provided on the side surface of the newly installed steel column; A jack device installed between the upper erection piece and the upper erection piece. The misalignment correction jig according to the present invention is configured such that the jig body is attached to a lower erection piece of an existing steel column in a state where the existing steel column and the new steel column are connected by the rebuilding tool or the like. When the jack device is operated, the arm portion of the jig main body is separated from the upper erection piece of the newly installed steel column, and the newly installed steel column is horizontally moved. As described above, according to the present invention, the newly installed steel column is horizontally moved by the jack device, so that misalignment can be corrected without lifting the newly installed steel column using a crane.
[0012]
The jig for correcting misalignment of a steel column according to the present invention is characterized in that a jack mounting portion is provided from an arm portion of the jig body to the upper erection piece. When the jack device is attached to the jack attachment part provided on the jig body, the point of action of the jack device on the upper erection piece of the new steel column is determined at a predetermined position, so the accuracy of the moving direction of the new steel column is improved. Can be.
[0013]
Further, the misalignment correction jig for a steel column according to the present invention is characterized in that the position of the jack mounting portion can be changed vertically along the arm portion of the jig body. When the position of the jack attachment portion is configured to be changeable in this way, the point of action of the jack device on the upper erection piece of the newly installed steel column can be changed to the desired position. Accordingly, not only a predetermined rebuilding jig provided with a constant interval between the upper and lower erection pieces provided on the existing steel column and the newly installed steel column, but also another rebuilding jig having a different interval between the upper and lower erection pieces. Also, the misalignment correction jig of the present invention can be applied.
[0014]
Further, the misalignment correction jig for a steel column according to the present invention is characterized in that horizontal positioning means for changing a horizontal position of the jack device from the arm portion of the jig body toward the upper erection piece is provided. I have. The horizontal positioning means has a distal end protruding from the arm portion of the jig body toward the upper erection piece, so that a distance between the distal end and the upper erection piece can be changed. By providing such a horizontal positioning means in the jig main body, even if jack devices having different lengths are used, the performance thereof can be sufficiently exhibited.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a misalignment correction jig according to the present invention will be described with reference to the drawings.
[0016]
The misalignment correction jig of the present invention corrects misalignment of the new column 2 in a state where the existing column 1 and the new column 2 are reconstructed and connected by the connecting tool such as the jig 4 as shown in FIGS. 1 and 2. The jig includes a jig main body 21, a holding plate 22, and a jack device 23.
[0017]
As shown in FIG. 2, the jig main body 21 is made of a rigid material such as steel in which an arm 25 extends upward from a right end of a base 24 attached to a lower erection piece 5 provided on a side surface of the existing column 1. It is a member. The base part 24 extends the first vertical part 27 and the second vertical part 28 downward from the left end part and the middle part of the horizontal part 26, and the right end part of the horizontal part 26 and the lower end of the second vertical part 28. A reinforcing portion 29 is provided between the portions. The first vertical portion 27 is formed shorter than the second vertical portion 28. On the left side surface of the second vertical portion 28, a bolt hole 31 is provided below the lower end of the first vertical portion 27, into which the mounting bolt 30 of the holding plate 22 is screwed. The arm portion 25 is formed so as to extend to the side of the upper erection piece 6 provided on the side surface of the new pillar 2, and is parallel to the horizontal portion 26 from the left side toward the left end of the jig body 21. The jack mounting portion 32 is extended.
[0018]
The holding plate 22 is a thick flat plate-shaped member made of a rigid material such as steel having an insertion hole 33 for the mounting bolt 30, and extends downward from the lower end of the first vertical portion 27 of the jig body 21. It is detachably attached to the second vertical portion 28 by an attachment bolt 30.
[0019]
The jack device 23 is a separation-type hydraulic jack device having an operation unit (not shown) at the tip of a hydraulic oil hose 34, and is mounted on the upper surface of the jack mounting portion 32 of the jig body 21 and fixed by the mounting band 35. is there.
[0020]
Next, a process of correcting the misalignment of the new pillar 2 using the misalignment correcting jig of the present invention will be described.
[0021]
First, as shown in FIG. 6, when the new pillar 2 is installed, the existing pillar 1 and the new pillar 2 are connected using an appropriate rebuilding jig (for example, the conventional rebuilding jig 4). Rebuild 2 At the stage where a new pillar 2 is erected above each existing pillar 1, at the stage where a steel beam 3 (see FIG. 5) is temporarily assembled between the new pillars 2, and at the stage where the new pillar 2 and the steel beam 3 are welded. In each case, the position and orientation of each new pillar 2 are measured. When a misalignment of the new pillar 2 is found at each of these steps, the misalignment correction jig is attached to the lower erection piece 5 of the existing pillar 1 to correct the misalignment of the new pillar 2.
[0022]
The misalignment correction jig is attached as follows. First, with the holding plate 22 removed from the jig main body 21, between the rebuilding jig 4 shown in FIG. 6 and the existing column 1 and the new column 2, and between the upper and lower erection pieces 5, 6 as shown in FIG. Is inserted from the left end side (the first vertical portion 27 side) of the jig main body 21 into the gap 17 formed in the above. As shown in FIG. 2, the upper portion of the lower erection piece 5 is fitted into the groove 36 between the first vertical portion 27 and the second vertical portion 28, and the pressing plate 22 is brought into contact with the left side surface of the lower erection piece 5, The mounting bolt 30 is inserted through the insertion hole 33 of the holding plate 22 and the insertion hole 5 a of the lower erection piece 5 and screwed into the bolt hole 31 of the second vertical portion 28. Thereby, the jig main body 21 is fixed to the lower erection piece 5 of the existing column 1 as shown in FIGS. 1 and 2. At this time, the jack device 23 may be attached to the jack attachment portion 32 of the jig body 21 or may be removed.
[0023]
The jig body 21 is attached to the lower erection piece 5 of the existing column 1, and the jack device 23 is installed between the arm portion 25 of the jig body 21 and the upper erection piece 6 of the new column 2. Determine the horizontal position. That is, the rear end of the jack device 23 is brought into contact with the arm portion 25, and if the gap between the pressing piston 37 of the jack device 23 and the upper erection piece 6 of the new pillar 2 is wide, the jack device 23 and the arm The horizontal alignment of the jack device 23 is performed by sandwiching a plate (not shown) between the portions 25.
[0024]
As described above, when the jack device 23 is actuated in a state where the wrong correction jig is attached to the lower erection piece 5 of the existing column 1, the pressing piston 37 of the jack device 23 extends and the arm of the jig main body 21 is extended. The part 25 and the upper erection piece 6 of the new pillar 2 are separated. At this time, since the jig body 21 is fixed to the lower erection piece 5 of the existing column 1, the position of the arm portion 25 does not change, and the new column 2 pressed against the upper erection piece 6 moves horizontally. Thereby, misalignment of the new pillar 2 can be corrected.
[0025]
In addition, the moving direction of the new pillar 2 can be appropriately changed according to the attachment position of the misalignment correction jig of the present invention and the pressing direction of the upper erection piece 6. For example, when the new column 2 is rotated around the axis, as shown in FIG. 3A, the left and right side surfaces of the lower erection piece 5 provided on each side surface of the existing column 1 or the front and rear side surfaces of the existing column 1 or The misalignment correction jig of the present invention is attached to one of the left and right side surfaces of the lower erection piece 5 provided on the left and right side surfaces. When the new pillar 2 is moved horizontally in the direction of the normal to one side of the pillar, the lower pillar provided on the front side of the front and back sides (front and rear sides or left and right sides) of the existing pillar 1 as shown in FIG. The misalignment correction jig of the present invention is mounted on the other side surface of the lower erection piece 5 provided on one of the left and right side surfaces and the back side surface of the side erection piece 5. When horizontally moving the new pillar 2 in the diagonal direction, as shown in FIG. (C), the left and right one side and the other side of the lower erection piece 5 provided on one of a pair of adjacent side faces of the existing pillar 1 The misalignment correction jig of the present invention is attached to the other side surface of the lower erection piece 5 provided on the side surface. Although illustration is omitted, it is also possible to correct the misalignment by attaching the misalignment correcting jig of the present invention only to the lower erection piece 5 provided on one side surface of the existing column 1.
[0026]
In addition, the above-described misalignment correction process can be individually performed on the newly-established columns 2 that need to be corrected when the new columns 2 are erected above the existing columns 1. At the stage where the steel columns 3 (see FIG. 5) are temporarily assembled between the new columns 2 and at the stage where the new columns 2 and the steel beams 3 are welded, one or more major new columns 2 may be misaligned. By performing the correction, misalignment of the other new pillars 2 can be corrected at the same time. Therefore, the misalignment correction jig of the present invention can be used for correcting misalignment of another new pillar 2 after correcting the misalignment of a predetermined new pillar 2, so that the rebuilding described in the conventional example can be used. Unlike the jig 4, it is not necessary to prepare a number equivalent to four times the number of the new pillars 2.
[0027]
As described above, one embodiment of the present invention has been described. However, the present invention is not limited to the above-described embodiment, but can be variously modified. It is also possible to provide horizontal positioning means for adjusting the horizontal position of the jack device 23. Specifically, as shown in FIG. 4, the jack mounting portion 32 is detachably mounted on the arm portion 25 by the mounting bolt 38, and the mounting portion, that is, the insertion hole 39 of the mounting bolt 38 is provided at a plurality of positions in the vertical direction of the arm portion 25. It is provided. Further, a plurality of bolt holes 40 are provided in the left-right direction of the arm portion 25, and a horizontal position adjustment bolt 41 as a horizontal positioning means of the jack device 23 is screwed into the bolt holes 40. When the position of the jack mounting portion 32 is not changed in the vertical direction, the number of the bolt holes 40 of the horizontal position adjustment bolt 41 may be one.
[0028]
When the position of the jack attachment portion 32 is configured to be changeable in this way, the point of action of the jack device 23 on the upper erection piece 6 of the new pillar 2 can be changed to a desired position. As a result, the misalignment correction jig can be applied to the connecting jig 4 such as the rebuilding jig 4 having different intervals between the upper and lower erection pieces 5 and 6 provided on the existing column 1 and the new column 2. The performance is improved.
[0029]
If the arm 25 is provided with horizontal positioning means for adjusting the horizontal position of the jack device 23, the plate piece sandwiched between the jack device 23 and the arm portion 25 in order to adjust the horizontal position of the jack device 23 is provided. Without this, the horizontal position of the jack device 23 can be freely changed, and the horizontal position of the jack device 23 can be finely adjusted. Thus, even if various jack devices 23 having different lengths are used depending on the output of the jack device 23 or the difference in the manufacturer, the performance can be sufficiently exhibited.
[0030]
In the above embodiment, the case where one erection piece 5, 6 is provided on each side surface of the existing column 1 and the new column 2 has been described. However, the present invention relates to each side surface of the existing column 1 and the new column 2. The present invention can be applied to a case where a plurality of erection pieces 5 and 6 are provided in the horn.
[0031]
Further, as in the above-described modification, changing the position of the jack mounting portion 32 in the vertical direction is not limited to the case where the jack mounting portion 32 is configured to be detachable and its mounting portion is changed. Can be slidably attached to the arm portion 25 and can be fixed at an arbitrary position.
[0032]
【The invention's effect】
As described above, the present invention attaches the jig body to the lower erection piece of the existing steel column, extends the arm portion to the side of the upper erection piece provided on the side surface of the new steel column, and With the jack device installed between the upper part and the upper erection piece, one side of the upper erection piece of the new steel column is configured to be pressed, so that the new steel column does not have to be lifted by a crane. The misalignment can be corrected.
[0033]
Further, since the jack mounting portion is provided from the arm portion of the jig body toward the upper erection piece, the point of action of the jack device with respect to the upper erection piece of the new steel column is determined at a predetermined position. The accuracy of the moving direction of the pillar can be improved.
[0034]
In addition, since the position of the jack mounting portion is configured to be vertically changeable along the arm portion of the jig main body, the operation point of the jack device with respect to the upper erection piece of the newly installed steel column is changed to a desired position. can do.
[0035]
Further, since the horizontal positioning means for changing the horizontal position of the jack device from the arm portion of the jig body toward the upper erection piece is provided, the horizontal position of the jack device can be finely adjusted.
[Brief description of the drawings]
FIG. 1 is an overall view showing a state in which a misalignment correction jig according to the present invention is attached to a lower erection piece of an existing steel column.
FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, and is a front view showing a state in which a real misalignment correction jig is attached to a lower erection piece of an existing steel column.
3 (A) to 3 (C) are plan views each showing a moving direction of a newly installed steel column by the misalignment correcting jig according to the present invention.
FIG. 4 is a front view showing a modified example of the misalignment correction jig according to the present invention.
FIG. 5 is an explanatory diagram of a joining process of an existing steel column and a new steel column.
FIG. 6 is an explanatory view of a process for rebuilding a newly installed steel column according to the related art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Existing steel column 2 New steel column 4 Rebuilding jig 5 Lower erection piece 6 Upper erection piece 21 Jig main body 22 Holding plate 23 Jack device 24 Base part 25 Arm part 32 Jack mounting part 41 Horizontal positioning means

Claims (4)

既設の鉄骨柱の上端に新設の鉄骨柱を連結した状態で新設の鉄骨柱の目違いを矯正する目違い矯正治具であって、既設の鉄骨柱の側面に設けた下側エレクションピースに取付ける基台部から新設の鉄骨柱の側面に設けた上側エレクションピースの側方にアーム部を延在させた治具本体と、前記アーム部及び前記上側エレクションピースの相互間に設置するジャッキ装置とを備えた目違い矯正治具。A misalignment correction jig that corrects misalignment of a new steel column with the new steel column connected to the upper end of the existing steel column, and is attached to a lower erection piece provided on the side of the existing steel column. A jig body having an arm extending from the base to the side of the upper erection piece provided on the side surface of the newly installed steel column, and a jack device installed between the arm and the upper erection piece. A corrective jig equipped. 前記治具本体のアーム部から前記上側エレクションピースに向けてジャッキ取付部を設けた請求項1に記載の目違い矯正治具。The misalignment correction jig according to claim 1, wherein a jack attachment portion is provided from the arm portion of the jig body to the upper erection piece. 前記ジャッキ取付部の位置を前記治具本体のアーム部に沿って上下方向に変更可能に構成した請求項2に記載の目違い矯正治具。The misalignment correction jig according to claim 2, wherein a position of the jack attachment portion is vertically changeable along an arm portion of the jig main body. 前記治具本体のアーム部から前記上側エレクションピースに向けて前記ジャッキ装置の水平位置を変更する水平位置決め手段を設けた請求項1〜3のいずれかに記載の目違い矯正治具。The misalignment correction jig according to any one of claims 1 to 3, further comprising horizontal positioning means for changing a horizontal position of the jack device from the arm portion of the jig body toward the upper erection piece.
JP2003098201A 2003-04-01 2003-04-01 Steel column misalignment correction jig Expired - Fee Related JP3754967B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007186922A (en) * 2006-01-13 2007-07-26 Kayaba System Machinery Kk Misalignment correction device
CN107327023A (en) * 2017-07-25 2017-11-07 中国化学工程第三建设有限公司 A kind of steel structure module installs installation method
JP2020104150A (en) * 2018-12-28 2020-07-09 川崎重工業株式会社 Fixture and alignment method
CN115263000A (en) * 2022-08-29 2022-11-01 中建八局第一建设有限公司 Device for in-situ correction of super-long steel beam after high-position segmented hoisting and construction method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007186922A (en) * 2006-01-13 2007-07-26 Kayaba System Machinery Kk Misalignment correction device
CN107327023A (en) * 2017-07-25 2017-11-07 中国化学工程第三建设有限公司 A kind of steel structure module installs installation method
JP2020104150A (en) * 2018-12-28 2020-07-09 川崎重工業株式会社 Fixture and alignment method
JP7418955B2 (en) 2018-12-28 2024-01-22 川崎重工業株式会社 jig
CN115263000A (en) * 2022-08-29 2022-11-01 中建八局第一建设有限公司 Device for in-situ correction of super-long steel beam after high-position segmented hoisting and construction method
CN115263000B (en) * 2022-08-29 2023-06-20 中建八局第一建设有限公司 Device for in-situ correction after high-level sectional hoisting of ultra-long steel beam and construction method

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