JP3603957B2 - On-site manufacturing method for PC members - Google Patents

On-site manufacturing method for PC members Download PDF

Info

Publication number
JP3603957B2
JP3603957B2 JP2001270673A JP2001270673A JP3603957B2 JP 3603957 B2 JP3603957 B2 JP 3603957B2 JP 2001270673 A JP2001270673 A JP 2001270673A JP 2001270673 A JP2001270673 A JP 2001270673A JP 3603957 B2 JP3603957 B2 JP 3603957B2
Authority
JP
Japan
Prior art keywords
construction
work stage
wall panel
work
site
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP2001270673A
Other languages
Japanese (ja)
Other versions
JP2003074185A (en
Inventor
恵文 横田
久弥 前田
Original Assignee
株式会社沖創建設
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社沖創建設 filed Critical 株式会社沖創建設
Priority to JP2001270673A priority Critical patent/JP3603957B2/en
Publication of JP2003074185A publication Critical patent/JP2003074185A/en
Application granted granted Critical
Publication of JP3603957B2 publication Critical patent/JP3603957B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Description

【0001】
【産業上の利用分野】
本発明は、PC(プレキャスト)部材の現場製造施工方法、すなわちPC壁パネルなどのPC部材を工場生産しないで、建設現場で製造し、PC建築物を組立て施工する建設方法に関する。
【0002】
【従来の技術】
通常は、PC建築物を建造するには、PC壁パネルなどのPC部材を製造する専用の工場を設備し、PC工場で製造したPC壁パネルなどの部材を建設現場に運搬して組立て建設する方法が採用されている。
【0003】
【発明が解決しようとする課題】
しかしながら、このようにPC専用工場で製造したPC壁パネルなどを車で建設現場に運搬するには、道路交通法上の規制から、PC壁パネルなどのサイズの制限を受ける。
【0004】
PC壁パネルなどの製造がPC工場に集中するので、建設現場への運送のために、大量の車両が投入されるが、PC部材の車両への積込み人件費や運送費など、多大な運送費用を要する。
【0005】
PC工場と建設現場とが遠隔な場合は、運送費が嵩むだけでなく、運送に長時間を要するため、PC建築のメリットと言われている低廉化や工期の短縮などの効果が低い。
【0006】
本発明の技術的課題は、このような問題に着目し、PC建築物を建設する現場の狭小な領域でPC壁パネルなどの部材を製造し、かつ効率的に組立て施工可能とすることにある。つまり、建設現場から離れたPC専用工場でPC部材を製造し、現場に搬送して組立てるという発想を一掃するものである。
【0007】
【課題を解決するための手段】
本発明の技術的課題は次のような手段によって解決される。
請求項1は、建物を建造する建設領域に隣接して、水平の作業ステージを施工し、この作業ステージ上で成形したPC壁パネルの上で、順次上側のPC壁パネルを成形していく積み上げ式製造を行なっている間に、建設領域ではスラブ施工を行ない、スラブ施工後に、積み上げ式製造されたPC壁パネルをクレーンで建設領域のスラブ上に移動して建て付けし、作業ステージをPC壁パネルの製造に使用していない間は、施工に要する他の部材の製造を行ない、前記の作業ステージを、PC壁パネルの積み上げ式製造と他の作業に交互に用いることを特徴とするPC部材の現場製造施工方法である。
【0008】
水平の作業ステージさえ有れば、PC壁パネルなどPC部材は専用のPC工場でなく、建設現場でも製造可能となる。そして、建設領域に隣接した狭い敷地でも、作業ステージを水平に施工することは可能である。
【0009】
したがって、請求項1のように、建設領域に隣接して、水平の作業ステージを施工し、この作業ステージ上でPC部材を製造し、製造したPC部材をクレーンで移動して、組立て施工していくことが可能となる。
【0010】
このように、隣接した敷地に作業ステージを設けて、その上でPC部材を製造すれば、製造したPC部材を直ちにそのまま建設領域にクレーンで移動して組立て施工できるので、従来のような専用のPC工場は全く不要となり、そのための経費も節減される。また、車両などによる運搬の問題やそれに付随する問題も解消される。
【0011】
さらに、作業ステージ上で成形したPC壁パネルの上で、順次上側のPC壁パネルを成形していく積み上げ式製造を行なっている間に、建設領域ではスラブ施工を行なう。また、スラブ施工後に、積み上げ式製造されたPC壁パネルをすべて建設領域のスラブ上に移動して建て付けし、作業ステージをPC壁パネルの製造に使用していない間は、スラブ型枠などのような施工に要する他の部材の製造を行なう。したがって、前記の作業ステージを、PC壁パネルの積み上げ式製造と他の作業に交互に用いることができ、効率的に使用できる。
【0012】
本発明の発明者らが、特願2000−114365号において提案した方法によると、PC壁パネル1枚分の狭い敷地でも、多数のPC壁パネルを連続的に製造しながら積み上げていくことができる。したがって、このPC壁パネル製造方法によると、建設現場に隣接した狭い敷地でも、PC壁パネルを建設現場で製造できる。
【0013】
そのため、1階用のPC壁パネルを製造している間に、1階のスラブを施工し、1階用のPC壁パネルの建て付けの準備をすることができる。そして、製造したPC壁パネルを全部クレーンで現場に移動した後は、その作業ステージが開いているので、空いた作業ステージを利用して、次の2階スラブ施工のための型枠の製造や階段などのための型枠の製造などの大工仕事ができる。
【0014】
このような作業を作業ステージの上で交互に行なうことによって、1階、2階…というように、スラブ施工とPC壁パネルの建て付けを順次進行でき、狭い作業ステージを効果的に利用することで能率的に施工作業を遂行できる。その結果、建設現場の狭い敷地でも、PC専用工場に劣らない製造作業が可能となり、工期も大幅に短縮でき、かつ安価に施工可能となる。
【0015】
さらに、作業ステージ上で積み上げ製造されたPC壁パネルは、直ちに建設領域にクレーン移動して組立て施工されるので、広大なストックヤードも不要となり、逆に狭い建設現場で効率的に製造施工できる。
【0016】
請求項2は、建設領域に隣接して設置される水平の作業ステージであって、枕木状のコンクリート基礎を間隔を置いて複数形成してあり、その上に型鋼や木柱等の大引材を水平に複数本載置し、各大引材の上に金属パイプや角材等の多数の根太材を等間隔に配置し、その上に金属板その他の作業床板を敷いて成る建設現場用の作業ステージである。
【0017】
このように、建設領域に隣接して作業ステージを設置する場合に、枕木状のコンクリート基礎を間隔を置いて複数形成すれば、その上に型鋼や木柱等の大引材を水平に複数本載置し、各大引材の上に金属パイプや角材等の多数の根太材を等間隔に配置し、その上に作業床板を敷くことによって、容易に現場用の作業ステージを実現できる。
【0018】
このように、型鋼などの大引材を水平に複数本載置するための枕木状のコンクリート基礎を間隔をおいて複数形成するので、作業ステージ用の敷地は大雑把な整地で足り、短期間にかつ安価に作業ステージを実現できる。また、枕木状のコンクリート基礎さえ施工すれば、後は既存の型鋼や角パイプ、鉄板などを敷設するだけであるから、容易に完成でき、施工期間も極めて短くて済む。
【0019】
請求項3は、建設領域に隣接して設置される水平の作業ステージであって、少なくとも砂を敷いて水平に均し、その上に金属板その他の敷板を敷いてから、該敷板上に型鋼や木柱等の大引材を水平に複数本載置し、前記各大引材の上に金属パイプや角材等の多数の根太材を等間隔に配置し、その上に金属板その他の作業床板を敷いて成る建設現場用の作業ステージである。敷板や作業床板は、木製でも、合成樹脂製でも、コンクリート製でもよい。材料は特に限定しない。
【0020】
敷地が平坦でない場合は、請求項2のように、整地の必要のない枕木状コンクリート基礎を用いるのが良いが、ほぼ平坦な敷地の場合は、請求項3のように、直ちに砂を敷いて水平に均し、その上に金属板その他の敷板を敷いてから、該敷板上に型鋼や木柱等の大引材を水平に複数本載置し、前記各大引材の上に金属パイプや角材等の多数の根太材を等間隔に配置し、その上に金属板その他の作業床板を敷いて成る作業ステージを採用すると、枕木状コンクリート基礎を打設する必要がなく養生期間も不要であり、使用後の撤去も簡便である。
【0021】
前記のように、枕木状コンクリート基礎を打設したり、砂を敷いて水平に均したりして水平の作業ステージを施工して、PC壁パネルの製造などに使用し、建物が完成したら、その後は、作業ステージは不必要であり、邪魔である。
したがって、建物が完成した後は、作業ステージを構成する全ての部材を撤去し、作業ステージ用の部材を残置しないで済むので、作業ステージのための敷地が犠牲になるようなこともない。
【0022】
【発明の実施の形態】
次に本発明によるPC部材の現場製造施工方法が実際上どのように具体化されるか実施形態を説明する。まず、図1から図3において、本発明の発明者らが特願2000−114365号において提案したPCパネルの積上式製造方法を説明する。図1は積上式製法によってPC壁パネルを製造している状態の全容を示す斜視図である。
【0023】
1は地盤であり、その上に直にコンクリートを打設して平面度の高いコンクリート製の作業ステージ2を形成して、定盤にする。この作業ステージ2の上で、PC壁パネルP1、P2…を成形し、順次重ねていく。
【0024】
最初の最下部のPC壁パネルP1は、作業ステージ2の上に型枠をセットし、かつシートを敷いて、その上にコンクリートを打設して製造する。そして、前記型枠を外した状態で、今度は、先に成形したPC壁パネルP1を定盤にして、その上のPC壁パネルP2を成形する。
【0025】
図1は、2段目のPC壁パネルP2の上に、3段目のPC壁パネルP3を製造するための型枠3をセットした状態を示す。
各PC壁パネルP1、P2には、予め横向きアンカーを埋め込み、このアンカーにフォームタイ(登録商標、以下同様)4を連結し、型枠締め付け金具5を取り付けることによって、型枠3を下段のPC壁パネルP2に取り付け固定してある。
【0026】
そして、PC壁パネルP2の上面にシートを敷いた状態で、その上にコンクリートを打設し養生することで、PC壁パネルP3が完成する。
なお、型枠3は、軽量化とコストダウンのために合板6を使用し、その上端と下端に水平に鋼製角パイプ7を重ねて固定し、補強している。
【0027】
各PC壁パネルP1、P2、P3には軸筋8が埋設されており、コッター部9には、U字状の連結筋10が埋設されている。
【0028】
次に、図2において、最初の最下段のPC壁パネルP1の製造方法を説明する。
最初のPC壁パネルP1を製造する際は、型枠3を支持する下段のPC壁パネルが無いので、図示のように、コンクリート製の作業ステージ2にアンカーボルト11を立てて、つっかい板12を固定する。
【0029】
つまり、四角状にセットした型枠3の合板6に固定した下側の鋼管7をつっかい板12で押さえつけ、つっかい板12の先端を外側から合板6に突き当てて、型枠3が外側に倒れるのを防いでいる。
4辺すべての型枠3について、しかも1辺を2か所以上でつっかい板12によって固定する。
【0030】
作業ステージ2の上面には、打設されたコンクリートが作業ステージ2に付着するのを防ぐために、セパレーター用のシート13を敷いておく。
このシート13は、単なるセパレートのためだけであれば、ビニールシートなどで足りるが、生コンクリートから発生するコンノロがタイル面などに付着するのを防ぐには、吸水性シートを用いる。
吸水性シートの場合は、無数の連結孔が開いているので、コンノロを効果的に吸収する。
【0031】
作業ステージ2の上面が、正確に水平度が出されている場合は、その上にシート13を敷くだけでよいが、平面度が不十分な場合は、レベルモルタルを散布して水平度を出してからシート13を敷く。
または、コスト面を考慮して、砂を撒き、砂面を水平に均してからシート13を敷いてもよい。
【0032】
また、各辺の合板6には、上の段のPC壁パネルP2を成形する型枠を保持するための横向きアンカー14を予めセットしておく。
この状態で、型枠内部に前記の各鉄筋8、10を配筋してから、コンクリートを打設し養生する。
【0033】
型枠3の高さ寸法Hは、PC壁パネルの各種の厚さtに対応できるように、予め大きめに製作してある。
また、合板6が吸水して劣化するのを防ぐために、粘着テープなどを貼っておくと、繰り返し使用できる。
【0034】
コンクリートを打設した後、一晩程度の養生で、当該PC壁パネルP1の上で、次の作業を行なうことができる。
【0035】
1段目のPC壁パネルP1の短期養生が終わると、その型枠を取り外し、1段目のPC壁パネルP1の上に、シート13を敷いて、2段目のPC壁パネルP2を成形する。
【0036】
図3は、2段目のPC壁パネルP2の上に3段目のPC壁パネルP3を成形した状態である。
このように下段のPC壁パネルP2の上にシート13を敷き、しかも下段のPC壁パネルP2に予め埋め込んだ横向きアンカー14の外端にフォームタイ(同上)4を連結し、型枠締め付け金具5を取り付けて、この型枠締め付け金具5で型枠3の下側の鋼管7を外側から押さえつけることによって、上側の型枠3を固定する。
【0037】
そして、型枠3中にセパレート用のシート13を敷き、かつ配筋を行なった状態で、コンクリートを打設して養生すると、PC壁パネルP3が完成する。
【0038】
図示のように、左右の型枠3、3に取り付けた横向きアンカー14・14の内端同士の間に鉄筋15を連結しておけば、左右の型枠3、3がコンクリートの圧力で外側に押し拡げられて膨らむのを防止できる。前後の型枠の横向きアンカー間にも同様に鉄筋を連結しておく。
【0039】
さらに確実性を期すために、図1のように、隣接する上側鋼管7、7の上に連結板17を渡して、万力18で固定すると、各型枠3の上端が開くのを確実に防止できる。
図では、左手前の1か所しか示されていないが、4角全体に使用することは言うまでもない。
【0040】
このような積上式の成形法では、成形して養生した後に脱型した型枠は、そのすぐ上の段の型枠として組み立てて再使用するので、従来の工法に比べると、型枠が少なくてすみ、作業も簡便であり、作業能率が向上する。
積み上げ製造する製品は、パネル状であればよく、壁パネル以外の製造にも適用できる。
なお、作業ステージ2は、図8、図9のような簡易な施工法もある。
【0041】
図4から図7は、前記のPC壁パネルの積み上げ式製法で製造したパネルで建物を組立て施工していく方法を工程順に示す側面図である。
図4は最初の工程であり、まず建設現場を整地して、建物を建造する建設領域Wに杭打ちその他の地業工事を行ない、次いで、図のように、1階部分のスラブすなわち基礎スラブ20を施工する。
この間に、前記の作業ステージ2を水平に施工すると共に、その上で前記の積み上げ式製法によって1階部分に使用するPC壁パネルP1、P2…を製造しておく。
【0042】
作業ステージ2の広さは、1枚のPC壁パネルと同程度のサイズで足りる。
その個数は、1組だけでは足りない場合は、建物の規模や敷地の状況などに応じて複数組設けてもよい。
あるいは、大面積の作業ステージを1組だけ設けて、その上の2か所以上の領域で積み上げ式製造を行なってもよい。
【0043】
次いで、図5のように、前記の建設領域と作業ステージ2との間にクレーンCを配置する。
そして、作業ステージ2上で製造されたPC壁パネルP1、P2…をクレーンCで建設領域Wに移動し、先に施工した基礎スラブ20の上に建て付けていく。
21は支持パイプであり、基礎スラブ20上で、PC壁パネルPが前後に倒れないように支持している。
【0044】
このようにして、作業ステージ2上で積み上げ式製法で製造したPC壁パネルP…をクレーンCで吊り上げて建設領域Wに移動し、基礎スラブ20上に建て付けていく。
作業ステージ2上のPC壁パネルを全部移動した後は、その上の階のスラブを施工する準備を作業ステージ2上で行なう。
すなわち、スラブ施工に必要なスラブ型枠などを製造する。
【0045】
作業ステージ2は、水平でかつ平面度が高いので、特に精度を要する部材は作業ステージ上で製造する。
製造した型枠などの部材は、状況に応じて、作業ステージ上に積み上げて置いてもよいし、作業ステージの周囲に一時保管しておいてもよいし、徐々に建設領域Wのスラブ20上に移動しておいてもよい。
【0046】
図5で移動した各PC壁パネルP…の建て付けが終わり、2階部分のスラブ施工が可能となったら、
図6のように、1階のPC壁パネルPの上に、作業ステージ2上で製造した型枠fを組立て、次いでコンクリートを打設し養生する。
このようにスラブ施工をしている間は、前記の作業ステージ2は空いているので、作業ステージ2では再び図1〜図3の積み上げ式製法によって、2階部分に使用するPC壁パネルを製造する。
【0047】
そして、2階部分のスラブ22の養生が終わり、型枠を解体した後、図7のように、作業ステージ2上で製造したPC壁パネルP…をクレーンCで移動して、2階部分に建て付けていく。
このように、建設領域Wと隣接する作業ステージ2上でPC壁パネルを現場製造してはクレーンで移動して建て付けを行ない、次いでスラブを施工するという作業を繰り返すことによって、PC建築物を建造する。
【0048】
作業ステージ2上でPC製造するのはパネル類だけでなく、建物の規模や構造に応じて、梁や柱、階段、ベランダ、各部の手すり、その他の各種部材も製造できることは言うまでもない。
また、前記のように型枠製造その他の大工仕事もでき、特に精度を要する作業に適している。このほか、タイルの先付け加工や部材の原寸法当て確認なども行える。
【0049】
このように、作業ステージ上では、各種のPC部材を製造するので、コンクリート運搬車が横づけできるような通路配置計画を行なう。
また、作業ステージ上で製造した各種部材を、クレーンによって建設領域に移動できるような位置に、作業ステージを設置する。
【0050】
以上のように本発明によると、PC専用工場でなく、建築現場の作業ステージでPC部材を製造でき、一般道路を使用して車両で運搬する必要がないので、PC部材の寸法上の制限を受けない。したがって、建物に応じて、PC部材の寸法を自由に設定できる。また、運搬時の震動や衝撃などで、部材の寸法精度が落ちたりするようなこともなく、高品質の建物を提供できる。
【0051】
作業ステージは、PC部材などの製造だけでなく、地鎮祭や上棟式、竣工式などのような建築現場で行われる祝い儀式などのための仮設ステージとしても利用できる。なお、作業ステージを施工するための資材などは、現地でリース調達が可能であるから、資材の運搬からも開放される。
【0052】
したがって、PC部材を製造するための原料や資材から製造のための作業ステージなど全てを現地調達して、PC部材をすべて現場で、しかも狭いスペースで製造し建造できることになる。
【0053】
こうしてPC部材の製造も完了し、建物が完成した後は、前記の作業ステージ2は不必要となる。
そのまま駐車場などとして使用できればよいが、作業ステージが邪魔な場合もある。
そのような場合を想定すると、解体撤去が容易な作業ステージが望まれる。図8、図9は、このような要望を満たせる作業ステージの実施形態である。
【0054】
図8は比較的平坦度の悪い敷地をそのまま利用する作業ステージ施工法であり、(1)は平面図、(2)は正面図、(3)は側面図である。この施工法は、枕木状のコンクリート基礎24を、例えば2〜3m程度の間隔で、数カ所設ける。すなわち、コンクリート基礎24の下に、基礎栗石25を敷き、その上に、型枠を用いて、枕木状のコンクリート基礎24を打設形成する。
【0055】
これらのコンクリート基礎24…の上面が可能な限り水平に揃うように測定しながら、コンクリート打設する。
図示例では、各コンクリート基礎24は、幅が例えば約50cm、長さが3m程度、各コンクリート基礎24・24の間隔は約2mである。
なお、補強のために、内部にワイヤーメッシュや異形鉄筋などを埋設するのがよい。
【0056】
各コンクリート基礎24を養生した後、その上にH型鋼26を渡す。
すなわち、幅約20cm、高さ約20cm、長さ約8mの3本のH型鋼26を、約1〜1.3mの間隔で平行に配置する。
このとき、各H型鋼26の上面が水平に揃うように測定し、低い箇所が有れば薄板などを挟んで調節する。
【0057】
次に、3本のH型鋼26の上面に、約5cm角の鋼製角パイプ27を例えば約30cm間隔で配置する。
そして、その上に、金属板あるいは合板などの作業床板28を敷くことによって、作業ステージ2が完成する。
図のH型鋼26に代えてE型鋼などのような他の型鋼を採用してもよく、木造住宅用の木柱などを代用してもよい。
また、角パイプ27に代えて丸パイプを用いてもよく、木製の角材を代用してもよい。
【0058】
なお、H型鋼26や角パイプ27は、木造住宅における大引や根太に相当するので、それぞれ「大引材」および「根太材」と総称することもできる。
【0059】
こうして完成した作業ステージ2の作業床板28の上で、積み上げ式製法によってPC壁パネルを連続生産する。
PC壁パネルの他に、ベランダの手すりや階段などをPC法で製造してもよく、あるいは、柱や梁などもPC法で現地製造してもよい。
【0060】
PCパネルなどのPC部材の製造に使用しない場合、すなわち作業ステージが空いている場合は、スラブ施工や階段施工などのための型枠を製造してもよい。
作業ステージ2は精度よく水平に設置してあるので、精度を要する作業にも適している。
【0061】
建物が完成した後は、作業ステージは不要であるから、H型鋼26や角パイプ27、作業床板28などの部材は撤去し、搬出する。
また、枕木状のコンクリート基礎24も、破砕し撤去する。図1〜図3のように、全面にコンクリートを打設する場合と違って、図8の場合は、コンクリート基礎24が枕木状になっているので、破砕撤去は容易である。
したがって、撤去後は、施主は自由に各種の用途に利用できる。
【0062】
図9は、地盤が比較的平坦な場合に適している施工方法であり、平坦な地盤1に直接砂29を敷く。
砂29が流出したり崩れたりしないように、周囲を枠板や石やコンクリートなどで囲うのもよく、砂29の層を厚くしたいような場合は、初めに砂利などを敷き、その上に砂29を敷いてもよい。
【0063】
そして、砂29の面が水平になるように、測定しながら均一に均していく。
なお、必要に応じて、砂29を機械などで突き固めてもよい。
こうして、水平に均した砂29の上に、金属製や木製の敷板31を敷く。
この場合、砂29が露出しないように、あるいは降雨に打たれないように、全面に敷板31を被せるのがよい。
【0064】
次いで、敷板31の上に、図8の場合と同じ要領で、3本のH型鋼26などの大引材を平行に配置する。
この場合は、砂29の面を水平に均してあるので、各H型鋼26の上面が水平に揃うように測定し、調節する必要はない。
念のため、各H型鋼26の上面を測定してみて、水平度が狂っているような場合だけ、薄板などを挟んで水平度調節すれば足りる。
【0065】
そして、各H型鋼26の上面に、多数の角パイプ27などの根太材を等間隔に配置し、その上に、金属板や合板などの作業床板28を敷くことによって作業ステージ2が完成である。
【0066】
この施工法の場合は、建物完成後に、H型鋼26などと一緒に砂29も容易に撤去できるという利点があり、枕木状のコンクリート基礎24の場合のように破砕してなる廃棄物が発生することもない。
【0067】
以上の作業ステージにおいて、各部材の寸法は一例であって、作業ステージとしての用途に反しない範囲で任意の寸法を選定できることは言うまでもない。
【0068】
【発明の効果】
請求項1によると、建設領域に隣接して、水平の作業ステージを施工し、この作業ステージ上でPC部材を製造し、製造したPC部材をクレーンで移動して、PC建物を組立て施工していく。
【0069】
このように、隣接した敷地に作業ステージを設けて、その上でPC部材を製造すれば、製造したPC部材を直ちにそのまま建設領域にクレーンで移動して組立て施工できるので、従来のような専用のPC工場は全く不要となり、そのための経費も節減される。また、車両などによる運搬の問題やそれに付随する問題も解消される。
【0070】
そして、作業ステージ上で積み上げ式製造を行なっている間に、建設領域ではスラブ施工を行なえるし、スラブ施工後は、積み上げ製造されたPC壁パネルを建設領域のスラブ上に移動して建て付けできるので、1階、2階…というように、スラブ施工とPC壁パネルの建て付けを順次進行でき、狭い作業ステージを効果的に利用することで能率的に施工作業を遂行できる。
また、前記の作業ステージ上で、PC壁パネルの積み上げ式製造とスラブ型枠の製造などの他の作業を交互に行なえる。その結果、建設現場の狭い敷地でも、PC専用工場に劣らない製造作業が可能となり、工期も大幅に短縮でき、かつ安価に施工可能となる。
【0071】
作業ステージ上で積み上げ製造されたPC壁パネルは、直ちに建設領域にクレーン移動して組立て施工されるので、広大なストックヤードも不要となり、逆に狭い建設現場で効率的に製造施工できる。
【0072】
請求項2のように、型鋼などの大引材を水平に複数本載置するための枕木状のコンクリート基礎を間隔を置いて複数形成するので、作業ステージ用の敷地は大雑把な整地で足り、短期間にかつ安価に作業ステージを実現できる。
また、枕木状のコンクリート基礎さえ施工すれば、後は既存の型鋼や角パイプ、鉄板などを敷設するだけであるから、容易に完成でき、施工期間も極めて短くて済む。
【0073】
敷地が平坦でない場合は、請求項2のように、整地の必要のない枕木状コンクリート基礎を用いるのが良いが、ほぼ平坦な敷地の場合は、請求項3のように、直ちに砂を敷いて水平に均し、その上に金属板その他の敷板を敷いてから、該敷板上に型鋼や柱等の大引材を水平に複数本載置し、前記各大引材の上に金属パイプや角材等の多数の根太材を等間隔に配置し、その上に金属板その他の作業床板を敷いて成る作業ステージを採用すると、枕木状コンクリート基礎を打設する必要がなく養生期間も不要であり、使用後の撤去も簡便である。
【0074】
そして、建物が完成した後は、作業ステージを構成する全ての部材を撤去し、作業ステージ用の部材を残置しないので、施工主は作業ステージ後の敷地を所望の用途に使用でき、PC部材製造用の作業ステージのための敷地が犠牲になるようなこともない。また、撤去した部材や資材はリース業者に返却すれば、遠隔地まで運搬する負担が軽減される。
【0075】
【図面の簡単な説明】
【図1】本発明の発明者らが先に提案したPC壁パネルの積上式製法の全容を示す斜視図である。
【図2】図1における最下段のPC壁パネルの製法を示す縦断面図である。
【図3】図1における3段目のPC壁パネルの成形状態を示す縦断面図である。
【図4】図4から図7は、PC部材の現場製造施工方法の実施形態を工程順に示す側面図であり、図4は、基礎スラブを施工する最初の工程の図である。
【図5】作業ステージ上で製造したPC壁パネルをクレーンで建設領域に移動し、基礎スラブ上に建て付けていく工程の側面図である。
【図6】作業ステージ上で製造したスラブ型枠を組立て、スラブコンクリートを打設養生する工程の側面図である。
【図7】作業ステージ上で製造したPC壁パネルをクレーンで移動して、2階部分に建て付けていく工程の側面図である。
【図8】比較的平坦度の悪い敷地をそのまま利用して施工する作業ステージ施工法を示す図である。
【図9】比較的平坦度の良い敷地に適する作業ステージ施工法を示す図である。
【符号の説明】
1 地盤
2 作業ステージ
P、P1、P2… PC壁パネル
3 型枠
4 フォームタイ
5 型枠締め付け金具
6 合板
7 鋼製パイプ
8 軸筋
9 コッター部
10 連結鉄筋
11 アンカーボルト
12 つっかい板
13 シート
14 横向きアンカー
17 連結板
C クレーン
20 基礎スラブ
21 支持パイプ
22 2階部分のスラブ
23 足場
24 枕木状のコンクリート基礎
25 基礎栗石
26 H型鋼
27 角パイプ
28 作業床板
29 砂
31 敷板
[0001]
[Industrial application fields]
The present invention relates to an on-site manufacturing and construction method for a PC (precast) member, that is, a construction method in which a PC member such as a PC wall panel is manufactured at a construction site without being produced in a factory, and a PC building is assembled and constructed.
[0002]
[Prior art]
Normally, in order to build a PC building, a dedicated factory for manufacturing PC members such as PC wall panels is installed, and members such as PC wall panels manufactured at the PC factory are transported to the construction site and assembled. The method is adopted.
[0003]
[Problems to be solved by the invention]
However, when a PC wall panel or the like manufactured in a PC-dedicated factory is transported to a construction site by a vehicle, the size of the PC wall panel or the like is restricted due to regulations in the Road Traffic Law.
[0004]
Since the manufacture of PC wall panels, etc. is concentrated in PC factories, a large number of vehicles are used to transport them to the construction site. However, a large amount of transportation costs such as labor costs and loading costs for loading PC components onto the vehicle. Cost.
[0005]
When the PC factory and the construction site are remote, not only the transportation cost increases, but also the transportation takes a long time, so the effects such as the low cost and the shortening of the construction period, which are said to be the merits of the PC construction, are low.
[0006]
The technical problem of the present invention is to focus on such problems and to manufacture members such as PC wall panels in a narrow area of a site where a PC building is constructed, and to enable efficient assembly and construction. . That is, the idea of manufacturing PC members at a PC-dedicated factory away from the construction site, transporting them to the site, and assembling them is wiped out.
[0007]
[Means for Solving the Problems]
The technical problem of the present invention is solved by the following means.
According to claim 1, a horizontal work stage is constructed adjacent to a construction area for constructing a building, and the upper PC wall panel is sequentially formed on the PC wall panel formed on the work stage. During slab construction, slab construction was performed in the construction area, and after slab construction, the PC wall panels that were piled up were moved and built on the slab in the construction area with a crane, and the work stage was placed on the PC wall. While not being used for the manufacture of panels, other members required for construction are manufactured, and the above-mentioned work stage is used alternately for stacking-type manufacture of PC wall panels and other operations. It is a field manufacturing construction method.
[0008]
As long as there is a horizontal work stage, PC members such as PC wall panels can be manufactured at a construction site as well as a dedicated PC factory. Even in a narrow site adjacent to the construction area, it is possible to construct the work stage horizontally.
[0009]
Therefore, as in claim 1, a horizontal work stage is constructed adjacent to the construction area, a PC member is produced on the work stage, and the produced PC member is moved by a crane and assembled. It is possible to go.
[0010]
In this way, if a work stage is provided on an adjacent site, and a PC member is manufactured on the work stage, the manufactured PC member can be immediately moved to the construction area by a crane and assembled, so that it can be used for a special purpose as in the past. A PC factory is completely unnecessary, and the cost for it is also reduced. Moreover, the problem of transportation by vehicles and the problems associated therewith can be solved.
[0011]
Furthermore, it was molded on the work stage. PC wall panel On the top PC wall panel Slab construction is performed in the construction area while stacking manufacturing is being performed. In addition, after slab construction, it was manufactured in a stacked manner PC wall panel Move all over the slab in the construction area, PC wall panel While not used for manufacturing, other members such as slab formwork required for construction are manufactured. Therefore, the work stage is PC wall panel Can be used alternately for stacking manufacturing and other work, and can be used efficiently.
[0012]
According to the method proposed by the inventors of the present invention in Japanese Patent Application No. 2000-114365, a large number of PC wall panels can be stacked while being continuously manufactured even in a narrow site equivalent to one PC wall panel. . Therefore, according to this PC wall panel manufacturing method, the PC wall panel can be manufactured at the construction site even in a narrow site adjacent to the construction site.
[0013]
Therefore, while the first-floor PC wall panel is being manufactured, the first-floor slab can be constructed to prepare for the construction of the first-floor PC wall panel. And after moving all the manufactured PC wall panels to the site with a crane, the work stage is open, so using the vacant work stage, we can manufacture the formwork for the next 2nd floor slab construction. Carpentry work such as manufacturing molds for stairs and the like.
[0014]
By performing such work alternately on the work stage, slab construction and PC wall panel building can proceed in sequence like the first floor, the second floor, etc., and the narrow work stage can be used effectively Can efficiently perform construction work. As a result, even in a small site of a construction site, it is possible to perform manufacturing work that is not inferior to a PC-dedicated factory, the construction period can be greatly shortened, and construction can be performed at low cost.
[0015]
Furthermore, since the PC wall panels stacked and manufactured on the work stage are immediately moved to the construction area and assembled, the large stock yard is not required, and conversely, the PC wall panels can be efficiently manufactured and installed at a narrow construction site.
[0016]
Claim 2 is a horizontal work stage installed adjacent to the construction area, wherein a plurality of sleeper-like concrete foundations are formed at intervals, and a large drawing material such as a steel mold or a wooden pole is formed thereon. Horizontally, place a large number of joists such as metal pipes and square bars on each large pulling material. Equally spaced It is a work stage for a construction site that is arranged and laid with a metal plate or other work floor board on it.
[0017]
In this way, when a work stage is installed adjacent to the construction area, if a plurality of sleeper-like concrete foundations are formed at intervals, a plurality of large drawing materials such as steel molds and wooden pillars are horizontally arranged on it. Place a large number of joists such as metal pipes and squares on each large pulling material. Equally spaced By arranging and laying a work floor board on it, a work stage for the field can be easily realized.
[0018]
In this way, a plurality of sleeper-like concrete foundations for horizontally placing a plurality of large-drawing materials such as steel molds are formed at intervals, so that the rough ground is sufficient for the work stage site, and in a short time The work stage can be realized at a low cost. Moreover, as long as the sleeper-like concrete foundation is constructed, the existing steel plate, square pipe, iron plate, etc. are simply laid, so that the construction can be completed easily and the construction period can be extremely short.
[0019]
Claim 3 is a horizontal work stage installed adjacent to the construction area, at least sand is leveled and leveled, and a metal plate or other floor plate is laid thereon, and then the steel plate is placed on the floor plate. A large number of large pulling materials such as wood pillars are placed horizontally, and a large number of joists such as metal pipes and square bars are placed on each large pulling material. Equally spaced It is a work stage for a construction site that is arranged and laid with a metal plate or other work floor board on it. The floorboard and work floorboard may be made of wood, synthetic resin, or concrete. The material is not particularly limited.
[0020]
If the site is not flat, it is better to use a sleeper-like concrete foundation that does not require leveling as in claim 2, but if the site is almost flat, immediately lay sand as in claim 3. After leveling horizontally and laying a metal plate or other laying board on it, a plurality of large drawing materials such as mold steel and wooden poles are placed horizontally on the laying board, and a metal pipe is placed on each of the large drawing materials. A large number of joists such as Equally spaced If a work stage comprising a metal plate or other work floor board disposed thereon is employed, it is not necessary to place a sleeper-like concrete foundation, a curing period is unnecessary, and removal after use is simple.
[0021]
As mentioned above, a sleeper-like concrete foundation is placed, sand is leveled and leveled horizontally, a horizontal work stage is constructed, used for manufacturing PC wall panels, etc. After that, the work stage is unnecessary and disturbing.
Therefore, after the building is completed, it is not necessary to remove all the members constituting the work stage and leave the work stage members, so that the site for the work stage is not sacrificed.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of how the on-site manufacturing and construction method for PC members according to the present invention is actually realized will be described. First, in FIG. 1 to FIG. 3, a stacked manufacturing method of a PC panel proposed by the inventors of the present invention in Japanese Patent Application No. 2000-114365 will be described. FIG. 1 is a perspective view showing the entire state in which a PC wall panel is manufactured by a roll-up manufacturing method.
[0023]
Reference numeral 1 denotes a ground, and concrete is placed directly on the ground to form a work stage 2 made of concrete having a high flatness to form a surface plate. On the work stage 2, PC wall panels P1, P2,... Are formed and sequentially stacked.
[0024]
The first lowermost PC wall panel P1 is manufactured by setting a formwork on the work stage 2, laying a sheet, and placing concrete on the sheet. Then, with the formwork removed, this time, the previously formed PC wall panel P1 is used as a surface plate to form the PC wall panel P2 thereon.
[0025]
FIG. 1 shows a state in which the mold 3 for manufacturing the third-stage PC wall panel P3 is set on the second-stage PC wall panel P2.
Each PC wall panel P1, P2 is pre-embedded with a horizontal anchor, a foam tie (registered trademark, the same applies hereinafter) 4 is connected to the anchor, and a mold fastening metal fitting 5 is attached to the mold 3 to form the lower PC. It is attached and fixed to the wall panel P2.
[0026]
And in the state which laid the sheet | seat on the upper surface of PC wall panel P2, concrete wall is cast | cured and cured on it, and PC wall panel P3 is completed.
Note that the mold 3 uses a plywood 6 for weight reduction and cost reduction, and a steel square pipe 7 is stacked and fixed horizontally on the upper and lower ends of the plywood 6 for reinforcement.
[0027]
Each PC wall panel P 1, P 2, P 3 has an axis line 8 embedded therein, and a cotter part 9 has a U-shaped connection line 10 embedded therein.
[0028]
Next, referring to FIG. 2, a manufacturing method of the first bottom PC wall panel P1 will be described.
When the first PC wall panel P1 is manufactured, since there is no lower PC wall panel for supporting the formwork 3, as shown in the drawing, anchor bolts 11 are erected on the concrete work stage 2, and the stiff plate 12 To fix.
[0029]
That is, the lower steel pipe 7 fixed to the plywood 6 of the mold 3 set in a square shape is pressed by the support plate 12, and the tip of the support plate 12 is abutted against the plywood 6 from the outside, so that the form 3 is outside. To prevent falling.
With respect to the molds 3 on all four sides, one side is fixed with a plate 12 at two or more places.
[0030]
A separator sheet 13 is laid on the upper surface of the work stage 2 in order to prevent the cast concrete from adhering to the work stage 2.
The sheet 13 may be a vinyl sheet for mere separation, but a water-absorbing sheet is used to prevent the stove generated from ready-mixed concrete from adhering to the tile surface.
In the case of the water-absorbent sheet, countless connecting holes are opened, so that the stove is effectively absorbed.
[0031]
If the upper surface of the work stage 2 is accurately leveled, it is only necessary to lay a sheet 13 on it, but if the flatness is insufficient, leveling is applied by spraying level mortar. Then spread the sheet 13.
Alternatively, in consideration of cost, the sheet 13 may be spread after sanding and leveling the sand surface horizontally.
[0032]
Further, a lateral anchor 14 for holding a mold for forming the upper PC wall panel P2 is set in advance on the plywood 6 on each side.
In this state, the reinforcing bars 8 and 10 are arranged inside the mold, and then concrete is placed and cured.
[0033]
The height dimension H of the mold 3 is made large in advance so as to correspond to various thicknesses t of the PC wall panel.
Moreover, in order to prevent the plywood 6 from absorbing water and deteriorating, it can be used repeatedly by sticking an adhesive tape or the like.
[0034]
After placing the concrete, the following work can be performed on the PC wall panel P1 by curing for about one night.
[0035]
When short-term curing of the first stage PC wall panel P1 is completed, the mold is removed, and a sheet 13 is laid on the first stage PC wall panel P1 to form the second stage PC wall panel P2. .
[0036]
FIG. 3 shows a state in which the third-stage PC wall panel P3 is formed on the second-stage PC wall panel P2.
In this way, the sheet 13 is laid on the lower PC wall panel P2, and the form tie (same as above) 4 is connected to the outer end of the lateral anchor 14 embedded in the lower PC wall panel P2 in advance, and the mold fastening metal fitting 5 And the upper mold 3 is fixed by pressing down the steel pipe 7 on the lower side of the mold 3 from the outside with the mold clamp 5.
[0037]
When concrete sheet is placed and cured in a state in which the separating sheet 13 is laid in the mold 3 and the bar arrangement is performed, the PC wall panel P3 is completed.
[0038]
As shown in the figure, if the reinforcing bars 15 are connected between the inner ends of the horizontal anchors 14 and 14 attached to the left and right molds 3 and 3, the left and right molds 3 and 3 are moved outward by the pressure of the concrete. It can be prevented from expanding and expanding. Reinforcing bars are similarly connected between the horizontal anchors of the front and rear molds.
[0039]
For further certainty, when the connecting plate 17 is passed over the adjacent upper steel pipes 7 and 7 and fixed with a vise 18 as shown in FIG. 1, the upper end of each mold 3 is surely opened. Can be prevented.
In the figure, only one place on the left front is shown, but it goes without saying that it is used for the entire four corners.
[0040]
In such a roll-up molding method, the mold form that has been molded and cured and then reassembled is assembled and reused as a mold form immediately above it. Less work is required, work is simple, and work efficiency is improved.
The product to be stacked and manufactured may be in the form of a panel, and can be applied to manufacturing other than wall panels.
Note that the work stage 2 also has a simple construction method as shown in FIGS.
[0041]
4 to 7 are side views showing a method of assembling and constructing a building with panels manufactured by the above-described PC wall panel stacking method, in the order of steps.
FIG. 4 shows the first step. First, the construction site is leveled, pile driving and other ground work are performed in the construction area W where the building is constructed, and then the slab of the first floor portion, that is, the foundation slab as shown in the figure. 20 is constructed.
During this time, the work stage 2 is installed horizontally, and the PC wall panels P1, P2,... Used for the first floor portion are manufactured by the stacked manufacturing method.
[0042]
The work stage 2 can be as large as a single PC wall panel.
If only one set is sufficient, a plurality of sets may be provided according to the size of the building, the situation of the site, and the like.
Alternatively, only one set of large-area work stages may be provided, and stacked manufacturing may be performed in two or more regions on the work stage.
[0043]
Next, as shown in FIG. 5, the crane C is disposed between the construction area and the work stage 2.
And PC wall panel P1, P2 ... manufactured on the work stage 2 is moved to the construction area W with the crane C, and is built on the foundation slab 20 previously constructed.
Reference numeral 21 denotes a support pipe, which supports the PC wall panel P so as not to fall back and forth on the foundation slab 20.
[0044]
In this way, the PC wall panels P ... manufactured by the stacked manufacturing method on the work stage 2 are lifted by the crane C, moved to the construction area W, and built on the foundation slab 20.
After all the PC wall panels on the work stage 2 have been moved, preparations are made on the work stage 2 to construct a slab on the upper floor.
That is, a slab formwork required for slab construction is manufactured.
[0045]
Since the work stage 2 is horizontal and has high flatness, members that require particularly high precision are manufactured on the work stage.
Depending on the situation, manufactured members such as formwork may be stacked on the work stage, temporarily stored around the work stage, or gradually on the slab 20 in the construction area W. You may have moved to.
[0046]
When the building of each PC wall panel P ... moved in FIG. 5 is finished and the slab construction on the second floor is possible,
As shown in FIG. 6, the mold f manufactured on the work stage 2 is assembled on the PC wall panel P on the first floor, and then concrete is placed and cured.
During the slab construction, the work stage 2 is vacant, so the work stage 2 again produces PC wall panels for use on the second floor using the stacked manufacturing method shown in FIGS. To do.
[0047]
Then, after the curing of the slab 22 on the second floor is completed and the formwork is dismantled, the PC wall panel P ... manufactured on the work stage 2 is moved by the crane C as shown in FIG. I will build it.
In this way, by repeatedly manufacturing the PC wall panel on the work stage 2 adjacent to the construction area W, moving it with a crane, building it, and then constructing the slab, Build.
[0048]
It goes without saying that not only panels but also beams, columns, stairs, verandas, handrails for each part, and other various members can be manufactured on the work stage 2 according to the size and structure of the building.
In addition, as described above, it is possible to perform moldwork manufacturing and other carpentry work, and is particularly suitable for work requiring accuracy. In addition to this, it is possible to perform tile tipping and confirmation of the original dimensions of the members.
[0049]
As described above, since various PC members are manufactured on the work stage, a passage arrangement plan is provided so that the concrete transporter can be laid.
Further, the work stage is installed at a position where various members manufactured on the work stage can be moved to the construction area by a crane.
[0050]
As described above, according to the present invention, the PC member can be manufactured not at the PC-dedicated factory but at the construction stage work stage, and it is not necessary to transport the vehicle by a vehicle using a general road. I do not receive it. Therefore, the dimension of the PC member can be freely set according to the building. In addition, a high-quality building can be provided without the dimensional accuracy of the member being reduced due to vibration or impact during transportation.
[0051]
The work stage can be used not only for the production of PC members and the like, but also as a temporary stage for celebration ceremonies that are held at construction sites such as the land-holding festival, the upper building ceremony, and the completion ceremony. In addition, since the material for constructing the work stage can be leased locally, it is free from material transportation.
[0052]
Accordingly, all the PC members can be manufactured and built in the field and in a narrow space by procuring all the raw materials for manufacturing the PC members and work stages for manufacturing from the materials.
[0053]
Thus, after the manufacture of the PC member is completed and the building is completed, the work stage 2 becomes unnecessary.
It may be used as it is as a parking lot, but the work stage may be an obstacle.
Assuming such a case, a work stage that is easy to dismantle and remove is desired. 8 and 9 show an embodiment of a work stage that can satisfy such a demand.
[0054]
FIG. 8 shows a work stage construction method using a site with relatively poor flatness as it is, (1) is a plan view, (2) is a front view, and (3) is a side view. In this construction method, several sleeper-like concrete foundations 24 are provided at intervals of, for example, about 2 to 3 m. That is, a foundation chestnut 25 is laid under the concrete foundation 24, and a sleeper-like concrete foundation 24 is cast and formed thereon using a mold.
[0055]
The concrete is placed while measuring so that the upper surfaces of the concrete foundations 24... Are aligned as horizontally as possible.
In the illustrated example, each concrete foundation 24 has a width of about 50 cm, a length of about 3 m, and the interval between the concrete foundations 24 and 24 is about 2 m.
For reinforcement, it is preferable to embed a wire mesh or deformed reinforcing bar inside.
[0056]
After curing each concrete foundation 24, the H-shaped steel 26 is handed over it.
That is, three H-shaped steels 26 having a width of about 20 cm, a height of about 20 cm, and a length of about 8 m are arranged in parallel at intervals of about 1 to 1.3 m.
At this time, the measurement is performed so that the upper surfaces of the respective H-shaped steels 26 are aligned horizontally.
[0057]
Next, about 5 cm square steel pipes 27 are arranged on the upper surface of the three H-shaped steels 26 at intervals of, for example, about 30 cm.
And the work stage 2 is completed by laying the work floor board 28, such as a metal plate or a plywood, on it.
Instead of the H-shaped steel 26 in the figure, other steel shapes such as E-shaped steel may be adopted, and wooden pillars for wooden houses may be substituted.
In addition, a round pipe may be used instead of the square pipe 27, and a wooden square may be used instead.
[0058]
Note that the H-shaped steel 26 and the square pipe 27 correspond to large drawing and joist in a wooden house, and can be collectively referred to as “large drawing material” and “needing material”, respectively.
[0059]
On the work floor board 28 of the work stage 2 thus completed, PC wall panels are continuously produced by a stacked manufacturing method.
In addition to the PC wall panels, handrails and stairs on the veranda may be manufactured by the PC method, or pillars and beams may be locally manufactured by the PC method.
[0060]
When not used for manufacturing a PC member such as a PC panel, that is, when the work stage is vacant, a mold for slab construction or staircase construction may be manufactured.
Since the work stage 2 is installed horizontally with high precision, it is suitable for work that requires high precision.
[0061]
Since the work stage is unnecessary after the building is completed, members such as the H-shaped steel 26, the square pipe 27, and the work floor board 28 are removed and carried out.
The sleeper-like concrete foundation 24 is also crushed and removed. As shown in FIGS. 1 to 3, unlike the case of placing concrete on the entire surface, in the case of FIG. 8, the concrete foundation 24 has a sleeper shape, so that the crushing and removal are easy.
Therefore, after removal, the client can freely use it for various purposes.
[0062]
FIG. 9 shows a construction method suitable for a case where the ground is relatively flat. Sand 29 is laid directly on the flat ground 1.
The sand 29 may be surrounded by a frame board, stone or concrete so that the sand 29 does not flow out or collapse. If you want to thicken the sand 29, first lay gravel and sand on it. 29 may be laid.
[0063]
Then, the sand 29 is leveled uniformly while measuring so that the surface of the sand 29 becomes horizontal.
If necessary, the sand 29 may be tamped with a machine or the like.
In this way, a metal or wooden floor 31 is laid on the horizontally leveled sand 29.
In this case, it is preferable to cover the entire surface with a covering plate 31 so that the sand 29 is not exposed or is not hit by rain.
[0064]
Next, on the floor plate 31, large draw materials such as three H-shaped steels 26 are arranged in parallel in the same manner as in FIG.
In this case, since the surface of the sand 29 is leveled, it is not necessary to measure and adjust so that the top surfaces of the H-shaped steels 26 are aligned horizontally.
As a precaution, it is only necessary to measure the upper surface of each H-shaped steel 26 and adjust the level with a thin plate or the like only when the level is out of order.
[0065]
And, on the upper surface of each H-shaped steel 26, joists such as a number of square pipes 27 are applied. Equally spaced The work stage 2 is completed by arranging and placing a work floor board 28 such as a metal plate or a plywood on the board.
[0066]
In the case of this construction method, there is an advantage that the sand 29 can be easily removed together with the H-shaped steel 26 and the like after the building is completed, and waste generated by crushing as in the case of the sleeper-like concrete foundation 24 is generated. There is nothing.
[0067]
In the work stage described above, the dimensions of each member are merely examples, and it is needless to say that arbitrary dimensions can be selected within a range that does not contradict the use as the work stage.
[0068]
【The invention's effect】
According to claim 1, a horizontal work stage is constructed adjacent to the construction area, a PC member is produced on the work stage, the produced PC member is moved by a crane, and a PC building is assembled and constructed. Go.
[0069]
In this way, if a work stage is provided on an adjacent site, and a PC member is manufactured on the work stage, the manufactured PC member can be immediately moved to the construction area by a crane and assembled, so that it can be used for a special purpose as in the past. A PC factory is completely unnecessary, and the cost for it is also reduced. Moreover, the problem of transportation by vehicles and the problems associated therewith can be solved.
[0070]
And while doing the stacked manufacturing on the work stage, slab construction can be done in the construction area, and after slab construction, it was built up PC wall panel Can be moved and built on the slab in the construction area, so the first floor, the second floor, etc. PC wall panel The construction work can be carried out in sequence, and the construction work can be carried out efficiently by effectively using the narrow work stage.
Also, on the above work stage, PC wall panel Other operations such as stacking and slab formwork can be alternated. As a result, even in a small site of a construction site, it is possible to perform manufacturing work that is not inferior to a PC-dedicated factory, the construction period can be greatly shortened, and construction can be performed at low cost.
[0071]
Made by stacking on work stage PC wall panel Since the crane is immediately moved to the construction area and assembled, it does not require a vast stockyard and can be manufactured and constructed efficiently in a narrow construction site.
[0072]
As in claim 2, since a plurality of sleeper-like concrete foundations for horizontally placing a plurality of large pulling materials such as steel molds are formed at intervals, a rough site is sufficient for the site for the work stage, A work stage can be realized in a short time and at a low cost.
Moreover, as long as the sleeper-like concrete foundation is constructed, the existing steel plate, square pipe, iron plate, etc. are simply laid, so that the construction can be completed easily and the construction period can be extremely short.
[0073]
If the site is not flat, it is better to use a sleeper-like concrete foundation that does not require leveling as in claim 2. However, if the site is almost flat, immediately lay sand as in claim 3. After leveling horizontally and laying a metal plate or other laying board on it, a plurality of large drawing materials such as mold steel and pillars are placed horizontally on the laying board, and a metal pipe or By adopting a work stage in which a large number of joists such as square bars are arranged at equal intervals and a metal plate or other work floor board is laid on it, there is no need to lay a sleeper concrete foundation and no curing period is required. Removal after use is also simple.
[0074]
And after the building is completed, all the members that make up the work stage are removed, and the work stage members are not left. Therefore, the construction owner can use the site after the work stage for the desired application, and manufacture the PC parts. There is no sacrificing site for the work stage. Moreover, if the removed member or material is returned to the leasing company, the burden of transporting it to a remote place is reduced.
[0075]
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a perspective view showing the whole aspect of a PC wall panel roll-up manufacturing method previously proposed by the inventors of the present invention.
FIG. 2 is a longitudinal sectional view showing a method of manufacturing the lowermost PC wall panel in FIG.
3 is a longitudinal sectional view showing a molded state of the third-stage PC wall panel in FIG. 1. FIG.
4 to 7 are side views showing an embodiment of a PC member on-site manufacturing construction method in the order of processes, and FIG. 4 is a diagram of an initial process for constructing a basic slab.
FIG. 5 is a side view of a process of moving a PC wall panel manufactured on a work stage to a construction area with a crane and building it on a foundation slab.
FIG. 6 is a side view of a process of assembling a slab form produced on a work stage and placing and curing slab concrete.
FIG. 7 is a side view of a process in which a PC wall panel manufactured on a work stage is moved by a crane and installed on the second floor.
FIG. 8 is a diagram showing a work stage construction method in which a site with relatively poor flatness is used as it is.
FIG. 9 is a diagram showing a work stage construction method suitable for a site with relatively good flatness.
[Explanation of symbols]
1 ground
2 Work stage
P, P1, P2 ... PC wall panel
3 Formwork
4 Form ties
5 Formwork clamp
6 Plywood
7 Steel pipe
8 axis muscle
9 cotter club
10 Connecting rebar
11 Anchor bolt
12 flat board
13 seats
14 Horizontal anchor
17 Connecting plate
C crane
20 Foundation slab
21 Support pipe
22 Slab of the second floor
23 Scaffolding
24 sleeper concrete foundation
25 Foundation Kuriishi
26 H type steel
27 square pipe
28 Working floor board
29 Sand
31 floorboard

Claims (3)

建物を建造する建設領域に隣接して、水平の作業ステージを施工し、この作業ステージ上で成形したPC壁パネルの上で、順次上側のPC壁パネルを成形していく積み上げ式製造を行なっている間に、建設領域ではスラブ施工を行ない、スラブ施工後に、積み上げ式製造されたPC壁パネルをクレーンで建設領域のスラブ上に移動して建て付けし、作業ステージをPC壁パネルの製造に使用していない間は、施工に要する他の部材の製造を行ない、前記の作業ステージを、PC壁パネルの積み上げ式製造と他の作業に交互に用いることを特徴とするPC部材の現場製造施工方法。Adjacent to the construction area where the building is to be built, a horizontal work stage is constructed, and on the PC wall panel formed on this work stage, the upper PC wall panel is formed one after the other and the stacked manufacturing is performed. In the construction area, slab construction was performed, and after the slab construction, the stacked PC wall panels were moved and built on the slab in the construction area with a crane, and the work stage was used for the production of PC wall panels. While not doing, manufacture other members required for construction, and the above-mentioned work stage is used alternately for stacking-type manufacturing of PC wall panels and other operations, and a method for on-site manufacturing and construction of PC members . 請求項1に記載のPC部材の現場製造施工方法に用いられ、建設領域に隣接して設置される水平の作業ステージであって、枕木状のコンクリート基礎を間隔を置いて複数形成してあり、その上に型鋼や木柱等の大引材を水平に複数本載置し、前記各大引材の上に金属パイプや角材等の多数の根太材を等間隔に配置し、その上に金属板その他の作業床板を敷いて成ることを特徴とする建設現場用の作業ステージ。It is used in the on-site manufacturing construction method for PC members according to claim 1 and is a horizontal work stage installed adjacent to a construction area, wherein a plurality of sleeper-like concrete foundations are formed at intervals, A plurality of large drawing materials such as steel molds and wooden pillars are horizontally placed thereon, and a large number of joists such as metal pipes and squares are arranged at equal intervals on each of the large drawing materials. A work stage for construction sites, characterized by laying boards and other work floor boards. 請求項1に記載のPC部材の現場製造施工方法に用いられ、建設領域に隣接して設置される水平の作業ステージであって、少なくとも砂を敷いて水平に均し、その上に金属板その他の敷板を敷いてから、該敷板上に型鋼や木柱等の大引材を水平に複数本載置し、前記各大引材の上に金属パイプや角材等の多数の根太材を等間隔に配置し、その上に金属板その他の作業床板を敷いて成ることを特徴とする建設現場用の作業ステージ。A horizontal work stage used in the on-site manufacturing construction method for a PC member according to claim 1 and installed adjacent to a construction area, and at least sand is leveled and leveled, and a metal plate or the like thereon After laying the floor plate, a plurality of large drawing materials such as steel molds and wooden pillars are placed horizontally on the floor plate, and a large number of joists such as metal pipes and square bars are equally spaced on each large drawing material. working stage for construction site which are arranged, characterized in that it comprises laying a metal plate other work floor thereon the.
JP2001270673A 2001-09-06 2001-09-06 On-site manufacturing method for PC members Expired - Lifetime JP3603957B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001270673A JP3603957B2 (en) 2001-09-06 2001-09-06 On-site manufacturing method for PC members

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001270673A JP3603957B2 (en) 2001-09-06 2001-09-06 On-site manufacturing method for PC members

Publications (2)

Publication Number Publication Date
JP2003074185A JP2003074185A (en) 2003-03-12
JP3603957B2 true JP3603957B2 (en) 2004-12-22

Family

ID=19096298

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001270673A Expired - Lifetime JP3603957B2 (en) 2001-09-06 2001-09-06 On-site manufacturing method for PC members

Country Status (1)

Country Link
JP (1) JP3603957B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2939809B1 (en) * 2014-04-30 2019-06-19 Nordex Energy Spain, S.A.U. Portable facility for the manufacture of prefabricated concrete elements for concrete towers

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2371960B1 (en) * 2009-11-30 2012-11-19 Inneo Torres, S.L. FACTORY FOR THE PRODUCTION BY MOLDING OF PREFABRICATED CONCRETE DOVELAS FOR THE CONSTRUCTION OF AIRLINER SUPPORT TOWERS.
CN105786052B (en) 2014-12-16 2020-09-08 艺康美国股份有限公司 Online control and reaction method for pH adjustment
JP6417230B2 (en) * 2015-01-30 2018-10-31 パナソニックホームズ株式会社 Housing construction method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2939809B1 (en) * 2014-04-30 2019-06-19 Nordex Energy Spain, S.A.U. Portable facility for the manufacture of prefabricated concrete elements for concrete towers

Also Published As

Publication number Publication date
JP2003074185A (en) 2003-03-12

Similar Documents

Publication Publication Date Title
US6401417B1 (en) Concrete form structure
US4918891A (en) Precast concrete foundation elements and system and method of using same
US7802409B2 (en) System of concrete structures having panel and column portions with rigid member and end of panel portion of one structure received in slot of column portion of adjacent structure
US5491948A (en) Tilt-up concrete pad and method of forming and erecting the tilt-up concrete pad
US20020069602A1 (en) Hurricane resistant precast composite building system
WO2011021151A1 (en) Method and system for in-situ construction of civil structures
US20060096202A1 (en) Pre-cast panel unibody building system
US8827235B1 (en) Concrete form for building foundation construction with form insert creating recessed sections
WO2011127522A1 (en) A method of forming a structural element and a method of building a structure
EP0537189B1 (en) A method of erecting a foundation structure for a building substructure
JP2004528497A (en) Reinforced building panels and triangular columns
JP6871495B1 (en) Solid foundation formwork and solid foundation construction method
JP3603957B2 (en) On-site manufacturing method for PC members
KR101036177B1 (en) Method for constructing building using PRC integrating method
JP2915897B1 (en) Building construction method
KR102149662B1 (en) Method for constructing transfer layer of building using precast concrete slab
US20070062133A1 (en) System and method of foamed cementitious construction
US20080236083A1 (en) Modular Concrete Wall System
JP3236834B2 (en) Basement structure, its manufacturing method, its transportation method and its construction method
JPH11323958A (en) Execution method of building and concrete product used therefor
JP2981009B2 (en) Foundation structure
JP3499191B2 (en) Stacked manufacturing method of PC panel
CA2588112C (en) Concrete structure system and apparatus for pre-casting concrete structures
KR100557276B1 (en) A Dismonuting Wall And Floor Form
KR20090103308A (en) Method of 3-Storey 5-Car Column Free Plant Type Garage

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20040127

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20040217

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20040409

RD05 Notification of revocation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7425

Effective date: 20040511

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20040601

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20040625

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20040914

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20040921

R150 Certificate of patent or registration of utility model

Ref document number: 3603957

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20071008

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101008

Year of fee payment: 6

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101008

Year of fee payment: 6

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313113

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

R360 Written notification for declining of transfer of rights

Free format text: JAPANESE INTERMEDIATE CODE: R360

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313113

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

R360 Written notification for declining of transfer of rights

Free format text: JAPANESE INTERMEDIATE CODE: R360

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

R370 Written measure of declining of transfer procedure

Free format text: JAPANESE INTERMEDIATE CODE: R370

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

R360 Written notification for declining of transfer of rights

Free format text: JAPANESE INTERMEDIATE CODE: R360

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313113

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

R360 Written notification for declining of transfer of rights

Free format text: JAPANESE INTERMEDIATE CODE: R360

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

R370 Written measure of declining of transfer procedure

Free format text: JAPANESE INTERMEDIATE CODE: R370

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

R370 Written measure of declining of transfer procedure

Free format text: JAPANESE INTERMEDIATE CODE: R370

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313113

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

R360 Written notification for declining of transfer of rights

Free format text: JAPANESE INTERMEDIATE CODE: R360

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

R360 Written notification for declining of transfer of rights

Free format text: JAPANESE INTERMEDIATE CODE: R360

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

R360 Written notification for declining of transfer of rights

Free format text: JAPANESE INTERMEDIATE CODE: R360

R371 Transfer withdrawn

Free format text: JAPANESE INTERMEDIATE CODE: R371

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313113

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131008

Year of fee payment: 9

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term