JP2004143881A - Residual porous frame for form, concrete building frame, and construction method of concrete building frame - Google Patents

Residual porous frame for form, concrete building frame, and construction method of concrete building frame Download PDF

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JP2004143881A
JP2004143881A JP2002312377A JP2002312377A JP2004143881A JP 2004143881 A JP2004143881 A JP 2004143881A JP 2002312377 A JP2002312377 A JP 2002312377A JP 2002312377 A JP2002312377 A JP 2002312377A JP 2004143881 A JP2004143881 A JP 2004143881A
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concrete
frame
formwork
residual
remaining
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JP4067091B2 (en
Inventor
Nobuyuki Sakamoto
坂本 伸之
Norio Sentoda
仙洞田 則夫
Shigeki Soma
相馬 茂樹
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TOYOKO TECHNO PLAN KK
YAMANASHI KENSOO KK
Sango Co Ltd
Sango KK
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TOYOKO TECHNO PLAN KK
YAMANASHI KENSOO KK
Sango Co Ltd
Sango KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a residual porous frame for a form for obtaining high construction efficiency and reduction in construction cost, and to provide a construction method of a concrete building frame. <P>SOLUTION: The residual porous frame 1 is constituted of a rectangular opening frame body 2 composed of an L-steel; and a number of porous plates 7 stretched to be welded so as to cover an opening on the surface side of the opening frame body 2, formed to draw a metal plate providing a number of arranged notches and difficult to leak a placed concrete fluid matter 3 by continuing a substantially inclined hole 6 formed of an inclined wall 4 which is in a hole state forming a small concrete projection 20 filled with concrete. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明はコンクリート躯体を形成するための型枠用残存多孔枠およびコンクリート躯体の施工方法に関する。
【0002】
【従来技術】
従来、表面を凸凹などの化粧面とし、且つ、裏側に型枠用残存枠同士を連結するナットなどの連結部や、組み上げた型枠の立ち姿勢を支持するための鉄筋などのセパレーターを溶接などで固定するためのボルトなどのセパレーター取付部を設けてなる、四角板枠からなる型枠用残存コンクリート化粧枠および非化粧の型枠用残存コンクリート平枠と、この型枠用残存コンクリート化粧枠および型枠用残存コンクリート平枠とで型枠を形成してコンクリートを打設して、該型枠をそのままコンクリート躯体に残存させるコンクリート躯体の施工方法が知られている。
【0003】
【発明が解決しようとする課題】
上述した従来技術は、残存コンクリート平枠同士を接続した連結金具にセパレーターを固定して支持しながら組み上げるので、作業者が落下する危険の無い高さで絶えず作業が行える安全な施工方法であるが次に述べるような欠点があった。第に、残存コンクリート平枠がコンクリート製であることから1枚が50キログラム〜78キログラムと大変な重量があり、現場での移動や設置は重機や複数作業者で行なわなければならず、型枠の組み上げ作業においては連結金具で複数枚を連結した状態での移動や運送はその重量のために連結金具を固定する埋め込みナットを引き出しコンクリート平枠を損傷させてしまうことから、一枚一枚を持ち上げ一枚一枚組み込んで形成して行かざるを得ないものであり、作業・施工効率が大変悪い、重量物であるので一回のトラックでの輸送が少なく不経済である、残存コンクリート平枠も高価であるなどの欠点を有するため材料コストが高くなるという欠点があった。
第に、長いコンクリート躯体を形成する場合、何回かに分けて横にコンクリート躯体を打ち継ぎ足して行く打ち継ぎ施工を行なうのであるが、打ち継ぎ部位の形成はコンパネ材や平鉄板を金属枠に張り付けた型枠用撤去枠によらなけらばならないので、打ち継ぎ面が平らなとなりその打ち継ぎ部はひび割れと同様にコンクリート躯体の構造耐力上の欠陥箇所となり易いとともに美観等の空間性能において欠陥箇所となりやすい、これを解消するために高圧噴射水を当てて平らな打ち継ぎ面を凸凹形状にする処理を行わなければならない、この作業は上部に行くにしたがって足場を組んでの高所での熟練大工作業となり熟練工の配置、足場と型枠の設置と撤去、落下の危険があるなどの欠点を持っていた。
第に、コンクリート平枠は型枠のコーナー部を形成するものは、それに合った長さや傾斜などにカットしたものを使用するが、カットの際の粉塵による作業者の健康への悪影響、カットした残存物の処理などに対応しなければならないという欠点があった。
第4に、接続し組み上げた枠の姿勢を支持するのに、鉄筋などのセパレーターを枠に熔接するのであるが、その熔接部位は水平に突起したボルトや枠の縁とセパレーターの接触点を熔接するものであったため、熔接部分が小さく看る者に強度上の不安を与えてしまう、熔接不良や熔接強度不足が生じやすいという欠点があった。
【0004】
本発明は以上のような従来の欠点に鑑み、高い施工効率と安全な作業性を実現するとともに材料コストと施工コストの軽減を実現する型枠形成用残存多孔枠、コンクリート躯体およびコンクリート躯体の施工方法を提供することを目的としている。
【0005】
本発明の前記ならびのそのほかの目的と新規な特徴は次の説明を添付図面と照らし合わせて読むと、より完全に明らかになるであろう。
ただし、図面はもっぱら解説のためであって、本発明の技術的範囲を限定するものではない。
【0006】
【課題を解決するための手段】
上記目的を達成するために、本発明はコンクリート打設用型枠を形成するための型枠用残存多孔枠であって、ボルトや溶接や連結金具などにより複数枚連結した状態で移動させても容易には破損したり変形したりしない強靭な金属製部材からなる開口枠体と、この開口枠体に該開口を覆うように張られるあるいは張られた、金属板に多数の切込みを配列設けて該金属板を引き伸ばして形成した略傾斜孔や、前記切込部分を押し出して形成した顎状部位により形成された孔などの、打設されたコンクリート流動物が外側に漏れ難く且つコンクリートが充填されてコンクリート小突起を形成する孔を多数配列設けてなる多孔板とで型枠形成用残存多孔枠を構成している。
【0007】
また、 開口枠体、この開口枠体に該開口を覆うように張られるあるいは張られた、金属板に多数の切込みを配列設けて該金属板を引き伸ばして形成した傾斜壁間に形成された孔や、金属板に形成した切込部分を押し出して形成した顎状部位により形成された孔などの、打設されたコンクリート流動物が外側に漏れ難く且つコンクリートが充填されてコンクリート小突起を形成する孔を多数配列設けてなる多孔板とからなる型枠用残存多孔枠と、型枠用残存コンクリート化粧枠と、地面に当接するなどして隠れる部位や打ち継ぎ部位を、前記型枠用残存多孔枠を接続し組み上げ形成した隠れ残存型枠部、地面から露出し景観を形成する部位を、前記型枠用残存コンクリート化粧枠を接続し組み上げ形成した露出残存型枠部とからなる残存型枠と、この残存型枠に充填したコンクリートとでコンクリート躯体を構成している。
【0008】
また、開口枠体、この開口枠体に該開口を覆うように張られるあるいは張られた、金属板に多数の切込みを配列設けて該金属板を引き伸ばして形成した傾斜壁間に形成された孔や、金属板に形成した切込部分を押し出して形成した顎状部位により形成された孔などの、打設されたコンクリート流動物が外側に漏れ難く且つコンクリートが充填されてコンクリート小突起を形成する孔を多数配列設けてなる多孔板とからなる型枠用残存多孔枠を、地中埋設される部位に接続し組み上げ内側で鉄筋などのセパレーターで姿勢を支持して隠れ残存型枠部を形成する隠れ残存型枠部形成工程と、前記隠れ残存型枠部にコンクリートを打設する地中部コンクリート打設工程と、この地中部コンクリート打設工程で打設した地中コンクリート躯体が硬化した状態で、表に露出する部位を型枠用残存コンクリート化粧枠を接続し組み上げ内側で鉄筋などのセパレーターで姿勢を支持するとともに地面に隠れる面やコンクリート打ち継ぎ面などの非露出部位を前記型枠用残存多孔枠で組み上げ内側で鉄筋などのセパレーターで姿勢を支持してなる露出残存型枠部を前記隠れ残存型枠部上に形成する露出残存型枠部形成工程と、前記露出残存型枠部にコンクリートを打設する地上部コンクリート打設工程とでコンクリート躯体の施工方法を構成している。
【0009】
【発明の実施の形態】
以下、図面に示す実施の形態により、本発明を詳細に説明する。
【0010】
図1ないし図8に示す本発明の第1の実施の形態において1は型枠用残存多孔枠(以下「残存多孔枠」と表することもある。)であって、この型枠用残存多孔枠1はL鋼で形成された1200ミリ×600ミリ×骨幅40ミリあるいは900ミリ×1800ミリ×骨幅55ミリあるいは400ミリ×400ミリ×厚3.2ミリの方形の開口枠体2と、この開口枠体2の表側にその開口を覆うように溶接されて張られた、切込みを多数配列設けた略0.5mm〜1.5mm厚の金属板を引き伸して前記切込みを略六角形状に開き形成されてなる、打設されたコンクリート流動物3が漏れ難く且つコンクリートが充填されてコンクリート小突起20を形成する孔形態である、傾斜45度で壁幅5ミリの傾斜壁4、4間に形成された略六角形の孔幅35ミリの略傾斜孔6を交互に連続させて多数配列設けてなる略格子状形態の多孔板7と、開口枠体2同士をボルトで接続するために適宜に開口枠体2の左右上下部位に設けられたナット部材とネジ通し孔からなる雌ネジ部8と、開口枠体2の側部、上部、底部に適宜に設けられた枠同士をボルトで接続するためのネジ通し穴9とからなっている。開口枠体2の重量は1200ミリ×600ミリ×40ミリ、多孔板の厚みが0.8mmのもので12キログラムである。
多孔板は、例えば、金属板に多数の切込みを配列形成し、その切込部分を凸押し出して顎形態の孔を多数形成してなる椀顎形態、傾斜顎形態などの多孔板なども良い。この場合の型枠用残存多孔枠の重量は15〜16キログラム程度となる。
開口枠体はC鋼、角パイプ鋼、木材、合成樹脂製やこれらの組合せによるものなど多様なものがある。
【0011】
型枠用残存多孔枠1の接続組立は、該1を数枚程度前もって連結しておいた連結体50aを基礎10にアンカーボルト11を打ち立て、上と表示している方を上にしてネジ通し穴9にアンカーボルト11を通してナット12で基礎に立て固定する。
型枠用残存多孔枠1同士の接続は平板鋼からなり4つの雌ネジ部8に対応したネジ通し穴13を有する連結金具14により行なう。
型枠用残存多孔枠1を基礎上に横に並べながら、最下部と最上部に連結金具14を両枠に跨るようにあて、ボルト15をネジ通し穴13に通し雌ネジ部8に螺合締付けて両者を接続固定しながら、第1段目を形成して行く。
第1段目の型枠用残存多孔枠1同士の接合部分に中心が行くように第2段目の型枠用残存多孔枠1を載せて、すでに第1段目に固定されている連結金具14にボルトを通し第2段目に載せた型枠用残存多孔枠1の雌ネジ部8に螺合しめつけて第1段目に第2段目の型枠用残存多孔枠1を接続固定して行く。あわせて第2段目同士の型枠用残存多孔枠1、1の当接部分と第1段目の型枠用残存多孔枠1の中央部に連結金具14を当て両残存多孔枠をボルト15とその連結金具14で接続固定する。
ネジ通し穴13にボルト15を通し締め付け接続固定する。以上の操作を繰り返し、基礎に適宜に打ち立てたアンカー17や対向側を鉄筋などからなるセパレーター18を適宜に溶接するなどして、型枠用残存多孔枠1の姿勢および位置を固定支持して隠れ残存型枠部19を形成する。
連結金具14を使用せずあるいは使用を少なくして、ネジ通し穴9,9にボルトを通してナットで接続固定するのもよい。これにより、連結金具の使用をしないあるいは少なくできるので、コストを軽減することができる。
連結金具は使用場所によりL型やコ型やT型などのものを使用するのもよい。
型枠用残存多孔枠1を前もって縦3〜5枚×横1〜2枚程度連結してあるものを組立てて行くのが、強度的にも効率的にもよい。
傾斜孔6の向きは、打設するコンクリートの流動粘度により、上向き、下向き、横向きとコンクリート突起が形成される向きにする。
【0012】
型枠の施工に際して、型枠用残存多孔枠1は一枚の重量が大きいものでも12キログラムと軽量であるので、作業員一人でも重機などを持ちいらずに、持ち運び型枠への組立を容易に行なうことができるとともに、強靭であるので複数枚を前もって連結しておいて運ぶことが容易にできるので、重機で吊ったり数人で持ち運び持ち上げ型枠を組み上げて行くことが容易に行え、施工効率を大幅にアップさせることができる。
また、工場で複数枚を連結した状態にして現場に輸送するより効率的な施工を実現する。また、工場で平形態板や湾曲形態板を接続して多角支柱体や円柱体を形成する支柱型枠を形成して現場に運び施工するなどのより効率的なことが容易に行なえる。
また、工場や現場での残存多孔枠の前もっての複数枚の連結や支柱型枠の形成は、ボルトではなく溶接により容易に速く安価に行なえるのでより効率的な施工と、低コストを実現する。
【0013】
図6ないし図8において、型枠用残存多孔枠1を使用してのコンクリート躯体21の施工方法例について説明する。
(1)基礎10を形成する基礎形成工程(図6)、
(2)型枠用残存多孔枠1を、地中埋設される部位に接続し組み上げ内側でセパレーター18で姿勢を支持して隠れ残存型枠部部22を形成する隠れ残存型枠部形成工程(図6)、
(3)隠れ残存型枠部部22にコンクリート23を打設する地中部コンクリート打設工程(図6)、
(4)地中部コンクリート打設工程で打設した地中コンクリート躯体24が硬化した状態で、表に露出する部位を四角形の型枠用残存コンクリート化粧枠25を接続し組み上げ内側でセパレーター18で姿勢を支持するとともに地面に隠れる面やコンクリート打ち継ぎ面などの非露出部位を型枠用残存多孔枠1で組み上げ内側でセパレーター18で姿勢を支持してなる露出残存型枠部26を隠れ残存型枠部部22上に形成する露出残存型枠部形成工程(図7)、
(5)露出残存型枠部26にコンクリートを打設する地上部コンクリート打設工程(図7)、により行ない地上コンクリート躯体27とともにコンクリート躯体21を完成させる(図8)。
隠れ残存型枠部22および露出残存型枠部26はそのコンクリート躯体の高さや幅により、型枠形成とコンクリート打設を何回かに分けて行なう。
また、コンクリートの打設は型枠部の一段ごとに行う、複数段で行うなど任意である。
基礎も型枠用残存多孔枠1で基礎型枠を形成して行なうのがよい。
また、長いコンクリート躯体の場合、何回かに分けて打ち継ぎ施工を行うのであるが、側面である打ち継ぎ部位が無数の凸凹け形態であるので、打ち継ぎ部分の曲げせん断耐力が一体打ちと同程度の力学的な性状を実現するので、高品質の打ち継ぎコンクリート躯体を実現する。
隠れ残存型枠部部22は地中部位とともに露出残存型枠部26の背部を形成しており、このような構成も本発明の技術的範囲に入るものである。
【0014】
【発明の異なる実施の形態】
次に、図9ないし図11に示す本発明の異なる実施の形態につき説明する。
なお、これら発明の異なる実施の形態の説明に当たって、前記本発明の第1の実施の形態と同一構成部分には同一符号を付して重複する説明を省略する。
【0015】
図9および図10に示す本発明の第2の実施の形態において前記本発明の第1の実施の形態と主に異なる点は、型枠用残存多孔枠29を構成する開口枠体30の構成を、前部を3本の胴縁L鋼31,32,33を上下に間隔を置いて並べ設け、この胴縁L鋼31,32,33の両端を接続固定してなる支柱L鋼34,35とで形成し、真ん中の胴縁L鋼32を除く各L鋼にネジ通し穴9を適宜に設け、係止穴36を適宜な部位に設けた多孔板37を合成樹脂製あるいは金属製の取付金具38で係止固定するための多孔板取付孔39を全胴縁L鋼に設けてなる点にある。
図10に示すように型枠40を組み上げる場合、開口枠体30同士を何枚か連結しておいた連結体50a〜50nを基礎に立設して所定の傾きにセパレーター18を基礎側のアンカー(図示せず)と連結体とを溶接して立設状態を固定して、接続組み上げ多孔板37を取り付けて行く。
また、胴縁L鋼31,32,33と支柱L鋼34,35をバラバラの状態にしておき夫々を所定の部位に固定するネジ通し穴を設けて、現場等でボルトとナットにより接続して開口枠体30を形成して使用するのもよい。これは、開口枠体の組立や溶接が必要ないのでより安価に提供できる、トラック輸送がより大量に行なえるので輸送コストを軽減できるなどの効果が得られる。
また、内側隅が丸くならないように板鋼材を特別に折り曲げた高価なL鋼を使用せず、汎用の安価なL鋼を切断してその端方をなんら加工をすることなく溶接あるいはボルト接合により形成できるので、形成費用の低コスト化を図れるという効果を得ることができる。
また、この場合、表側となる胴縁はコンクリート硬化後にナットを外し、取り外して繰り返し使用することも可能とできる。
また、多孔板37を開口枠体30に型枠を形成前あるいは形成途中で溶接により取り付けるようにするのがよい。このようにする場合は係止穴36、多孔板取付孔39および取付金具38を必要としない構成とできるのでコストが軽減される。
【0016】
図11に示す本発明の第3の実施の形態において前記本発明の第1の実施の形態と主に異なる点は、連結金具42をT形状の金具本体43と、この金具本体43の先端部前方に突出形成されたてその先端がU型形態の先部44、44、44を有する係止部45、45,45を設けた点にある。
開口枠体2のフレームを避けて傾けて開口枠体2に当て、当て押した状態で左側に回して、ハンマーで叩き込んで嵌合先部44,44,44を対応するネジ通し穴9,9,9に嵌合させて、開口枠体2,2同士を接続する。
ネジを締める手間が無く、作業効率を上げることができる。
【0017】
図12に示す本発明の第4の実施の形態において前記本発明の第1の実施の形態と主に異なる点は、開口枠体および型枠用残存多孔枠52a〜52nの形成を現場での鉄骨の組立および多孔板30の後付で形成するようにしたものである。
図12に示す部位は型枠53の側壁部分で打ち継ぎ部位である。
型枠を形成するL鋼からなる骨材は支柱54a〜54nと、胴縁55a〜55nの胴縁とで形成される。
アンカーボルト11を型枠形成部位に立て且つ内側に十字型のアンカー56を適宜に立設した基礎57を打設する。
胴縁55aを基礎57に背を外側にして固定し、支柱55bと支柱55iをボルト15とナットで接続し立て、胴縁55a〜55hを支柱の接続を適宜に行ないながら接続して行く。
組み上げ中に適当にセパレーター18で胴縁とアンカー56連結して姿勢を固定する。セパレーター18での連結は該18の料先端を所定の流させフック形成し、一方を胴縁のネジ通し穴に通し他方をアンカー56に十字形状を利用して番線で締め付け固定する。こうすることにより、溶接機を必要とせず雨天でも作業ができる。
多孔板30を胴縁に鉄板ドリルビスや溶接や取付金具などで固定する。
2本の胴縁と10本の支柱の組合せにより、打設したコンクリート躯体が硬化したら、支柱はボルトを外し撤去して繰り返し利用することが可能である。例えば、コンクリート躯体形成済みの部位の支柱を次の段の型枠に使用し、最終段において地中に残存させるなどのことが可能となる。
【0018】
図13に示す本発明の第5の実施の形態において前記本発明の第1の実施の形態と主に異なる点は、開口枠体1にネジ通し穴13を適宜に設け該1同士をボルト15とナット12により連結するようにし、且つ、ナット12が螺合する雄ネジ58が螺刻されてなる枠体連結部59と、開口枠体1の姿勢を支持する鉄筋などのセパレーター18を熔接するセパレーター溶接部60とからなる略L型棒状形態の連結手段61を設けた点にある。
このような構成とすることにより、セパレーター熔接部60の向きを垂直にあるいは水平に回動させてその向きをセパレーターの向きに合わせることができ、これにより溶接部分62を広い範囲のものにでき、看た目にも実際にも十分な熔接強度を実現するものである。
また、セパレータ熔接部を水平方向あるいは垂直方向に回動できる、例えば枠体連結部に加締めピンなどの軸によりセパレーター溶接部を回動可能に軸支するなどの構成にするのもよい。回動は加締めにより摩擦のあるきつめに動作されるようにするのがよい。このような構成とすることにより、多様な方向からのセパレーターとセパレーター溶接部の平行な当接を実現できる。
【0019】
【発明の効果】
以上の説明から明らかなように、本発明にあっては次に列挙する効果が得られる。
【0020】
(1)型枠の施工に際して、型枠用残存多孔枠は開口枠体をL鋼としたものでも一枚の重量が1200ミリ×600ミリ×40ミリで多孔板の板厚が0.8mmのもので12キログラムと軽量で且つ強靭であるので、作業員一人で重機などを持ちいらずに、持ち運び型枠への組立を容易に行なうことができるとともに、複数枚を前もって連結しておいて、重機で吊ったり数人で運び持ち上げ型枠を組み上げて行くことができ、型枠を組み上げながら同時進行で複数枚の残存多孔枠を溶接やボルト接合や連結金具により連結する作業をも進めるなどのことができるので、施工効率を大幅に向上させることができ、また、軽量であるのでトラックでの現場までの運送も一回で大量に行なうことができ、施工コストを大幅に軽減することができるという効果を得ることができる。
また、工場で複数枚を連結した状態にして現場に輸送する、工場で支柱コンクリート躯体を形成する支柱型枠を形成して現場に運ぶなどの効率化を容易に行えるなどの効果を得ることができる。
また、金属製の残存多孔枠の工場や現場での前もっての複数枚の連結や支柱型枠の形成は、ボルトではなく溶接により容易に速く行なえ、開口枠に連結のためのボルト通し穴やナットを設けないものでもよく、より低コストと効率的な施工を実現するとともに多様な形態の型枠形成に柔軟に対応できるという効果を得ることができる。
(2)傾斜孔や顎孔により多数のコンクリート小突起による凸凹面を形成するものであるので、特に打ち継ぎ部位が無数の凸凹形態となり、打ち継ぎ部分の曲げせんだん耐力が一体打ちと同程度の力学的な性状を実現するとともに、凸凹形成のための特別な処理の解消、残存枠であることから熟練工でなくても出来る施工、型枠撤去の不必要と安全な作業性の実現など高効率低コスト施工を実現するという効果を得ることができる。
(3)開口枠体を金属製のものとしたものは、カットした場合に粉塵がたつことがなく且つ廃棄物100パーセントがリサイクルできるので処理負担が無いという効果を得ることができる。
【0021】
(4)ナットにより開口枠体同士を連結する該ナットが螺合する雄ネジが螺刻されてなる枠体連結部と、該開口枠体の姿勢を支持する鉄筋などのセパレーターを熔接するセパレーター溶接部とからなる略L型棒状形態の連結手段を設けてなるものは、セパレータ溶接部が確りと固定されているのでセパレーターを当てての熔接作業が大変容易であり、側部に取付けた場合はセパレーター溶接部の垂直角度を、横部に取付けた場合はセパレータ溶接部の水平角度を自在に調節することができるので、セパレーターとセパレータ溶接部の熔接部分を大きくとることができ、見た目にも実際にも確りとした熔接を実現するという効果を得ることができる。
また、連結手段は連結ボルトの連結孔を使用すればよく、連結孔の形成を少なくでき且つ連結手段を使用した分だけボルトの使用が減るので経済的である。
【図面の簡単な説明】
【図1】本発明の第1の実施の形態の背面図。
【図2】図1の多孔板の部分拡大図。
【図3】本発明の第1の実施の形態の多孔板の機能概念図。
【図4】本発明の第1の実施の形態の型枠組立図。
【図5】本発明の第1の実施の形態の連結金具による連結状態図。
【図6】本発明の第1の実施の形態の隠れ残存型枠部形成図。
【図7】本発明の第1の実施の形態の露出残存型枠部形成図。
【図8】本発明の第1の実施の形態のコンクリート躯体完成図。
【図9】本発明の第2の実施の形態の組立分解斜視図。
【図10】本発明の第2の実施の形態の型枠組立施工図。
【図11】本発明の第3の実施の形態の連結金具の取付け図。
【図12】本発明の第4の実施の形態の型枠組立施工図。
【図13】本発明の第5の実施の形態の型枠組立て斜視図。
【符号の説明】
1:型枠用残存多孔枠、    2:開口枠体、
3:コンクリート流動物、   4:傾斜壁、
6:略傾斜孔、       7:多孔板、
8:雌ネジ部、        9:ネジ通し穴、
10:基礎、        11:アンカーボルト、
12:ナット、       13:ネジ通し穴、
14:連結金具、      15:ボルト、
16:ワッシャ−、     17:アンカー、
18:セパレーター、    19:隠れ残存型枠部、
20:コンクリート小突起、 21:コンクリート躯体、
22:隠れ残存型枠部部、  23:コンクリート、
24:地中コンクリート躯体、
25:型枠用残存コンクリート化粧枠、
26:露出残存型枠部、   27:地上コンクリート躯体、
29:型枠用残存多孔枠、  30:開口枠体、
31:胴縁L鋼、      32:胴縁L鋼、
33:胴縁L鋼、      34:支柱L鋼、
35:支柱L鋼、      36:係止穴、
37:多孔板、       38:取付金具、
39:多孔板取付孔、    40:型枠、
42:連結金具、      43:金具本体、
44:嵌合先部、      45:係止部、
50a〜50c:連結体
52a〜52c:型枠用残存多孔枠
53:型枠         54a〜54j:支柱
55a〜55h:胴縁    56:アンカー
58:雄ネジ59:枠体連結部
60:セパレーター溶接部61:連結手段
62:熔接部分。
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a residual porous frame for a formwork for forming a concrete frame and a method of constructing the concrete frame.
[0002]
[Prior art]
Conventionally, the surface has a decorative surface such as unevenness, and the back side has welding parts such as nuts connecting the remaining frames for the formwork, and separators such as reinforcing bars to support the standing posture of the assembled formwork. Provided with a separator mounting portion such as bolts for fixing in, a residual concrete decorative frame for a formwork consisting of a square plate frame and a non-decorative formwork residual concrete frame, and a residual concrete decorative frame for this formwork and There is known a construction method of a concrete skeleton in which a form is formed with a remaining concrete flat frame for a form, concrete is poured, and the form remains as it is in the concrete skeleton.
[0003]
[Problems to be solved by the invention]
The above-mentioned prior art is a safe construction method in which the worker can work continuously at a height without danger of falling because the separator is fixed and supported on the connecting metal fittings connecting the remaining concrete flat frames and supported. There were the following disadvantages. First, since the remaining concrete flat frame is made of concrete, one piece has a very heavy weight of 50 kg to 78 kg and must be moved or installed on site by heavy equipment or a plurality of workers. In the assembling work, moving or transporting with multiple pieces connected by connecting brackets pulls out the embedded nut that fixes the connecting bracket due to its weight and damages the concrete flat frame. Residual concrete flat frame, which must be formed by lifting one by one and forming it, resulting in extremely poor work / construction efficiency. However, there is a drawback that the material cost is high because of the disadvantages such as high cost.
First, when forming a long concrete skeleton, the joint construction is performed by dividing the concrete skeleton horizontally into several parts, but the joint part is formed by using a panel material or a flat iron plate in a metal frame. Since the joint must be removed by the removal frame for the formwork, the joint surface is flat, and the joint is likely to be a defect point in the structural strength of the concrete body as well as a crack, as well as a defect in the space performance such as aesthetic appearance. In order to eliminate this, it is necessary to apply high-pressure jet water to make the flat joint surface uneven, this work is done at a high place with a scaffold as you go to the top It was a skilled carpentry operation and had disadvantages such as placement of skilled workers, installation and removal of scaffolds and formwork, and danger of falling.
First, the concrete frame that forms the corners of the formwork should be cut to the appropriate length and slope, etc. There is a drawback that it is necessary to cope with the treatment of the residue.
Fourth, in order to support the posture of the assembled frame, a separator such as a reinforcing bar is welded to the frame, and the welded part is a bolt that protrudes horizontally or a contact point between the edge of the frame and the separator. Therefore, there is a defect that the welded portion is small, giving anxiety about strength to a viewer, and a poor welding or insufficient welding strength is liable to occur.
[0004]
SUMMARY OF THE INVENTION In view of the above-mentioned conventional drawbacks, the present invention achieves high construction efficiency and safe workability, and also reduces the material cost and the construction cost. It is intended to provide a way.
[0005]
The foregoing and other objects and novel features of the invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.
However, the drawings are for explanation only, and do not limit the technical scope of the present invention.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is a formwork residual porous frame for forming a concrete casting formwork, and may be moved in a state where a plurality of pieces are connected by bolts, welding, connecting fittings, or the like. An opening frame made of a strong metal member that is not easily broken or deformed, and a number of cuts are arranged in a metal plate stretched or stretched to cover the opening in the opening frame. The poured concrete fluid, such as a substantially inclined hole formed by stretching the metal plate or a hole formed by a jaw-like portion formed by extruding the cut portion, is hard to leak outside and is filled with concrete. And a perforated plate formed with a large number of holes forming small concrete projections to form a residual perforated frame for forming a mold.
[0007]
An opening frame, a hole formed between the inclined walls formed by stretching the metal plate by arranging a number of cuts in a metal plate stretched or stretched to cover the opening in the opening frame; The cast concrete fluid, such as a hole formed by a jaw-like portion formed by extruding a cut portion formed in a metal plate, is hard to leak to the outside, and is filled with concrete to form small concrete protrusions. The remaining perforated frame for the formwork comprising a perforated plate having a large number of holes arranged therein, the remaining decorative concrete frame for the formwork, and the portion that is hidden by contact with the ground or the like, A hidden remaining formwork portion formed by connecting and forming the frame, a portion that is exposed from the ground and forms a landscape, and a remaining formwork comprising an exposed remaining formwork portion formed by connecting and forming the remaining concrete decorative frame for the formwork. The concrete filled in the remaining formwork forms a concrete skeleton.
[0008]
Also, an opening frame, a hole formed between inclined walls formed by stretching a metal plate by arranging a number of cuts in a metal plate stretched or stretched to cover the opening in the opening frame. The cast concrete fluid, such as a hole formed by a jaw-like portion formed by extruding a cut portion formed in a metal plate, is hard to leak to the outside, and is filled with concrete to form small concrete protrusions. A residual porous frame for a formwork consisting of a perforated plate with a large number of holes arranged is connected to the part to be buried underground, and the posture is supported by a separator such as a reinforcing bar inside the assembling to form a hidden residual formwork part. A hidden remaining formwork forming step, an underground concrete placing step of placing concrete in the hidden remaining formwork section, and an underground concrete skeleton cast in the underground concrete placing step hardens. In the state, the part exposed to the table is connected to the remaining concrete decorative frame for formwork, the posture is supported by a separator such as a reinforcing bar inside the assembling, and the unexposed parts such as the surface hidden in the ground and the concrete jointing surface are removed from the form Forming an exposed remaining form part on the hidden remaining form part by supporting the posture with a separator such as a reinforcing bar on the inner side of the assembly with the remaining residual porous form; and forming the exposed remaining form part on the hidden remaining form part. The concrete casting process consists of the above-ground concrete placing process of placing concrete in the ground.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings.
[0010]
In the first embodiment of the present invention shown in FIGS. 1 to 8, reference numeral 1 denotes a residual porous frame for a mold (hereinafter sometimes referred to as “remaining porous frame”), and The frame 1 is made of L steel and has a square opening frame 2 of 1200 mm × 600 mm × bone width 40 mm or 900 mm × 1800 mm × bone width 55 mm or 400 mm × 400 mm × 3.2 mm thick. A metal plate approximately 0.5 mm to 1.5 mm thick provided with a large number of cuts, which is welded and stretched on the front side of the opening frame body 2 so as to cover the opening, is stretched to cut the cut into a substantially hexagonal shape. A sloped wall 4 having a slope of 45 degrees and a wall width of 5 mm, which is formed into a shape, and has a hole form in which the poured concrete fluid 3 is hardly leaked and filled with concrete to form small concrete projections 20; A substantially hexagonal hole width 35 formed between the four In order to connect the opening frame bodies 2 with bolts, the perforated plates 7 in a substantially lattice-like form, in which a large number of substantially inclined holes 6 are alternately and continuously arranged, are provided on the left, right, upper and lower portions of the opening frame body 2 as appropriate. A female screw portion 8 comprising a nut member and a screw through hole provided, and a screw through hole 9 for connecting frames appropriately provided on the side, upper and bottom portions of the opening frame 2 with bolts. ing. The weight of the opening frame 2 is 1200 mm × 600 mm × 40 mm, and the thickness of the perforated plate is 0.8 mm and is 12 kg.
The perforated plate may be, for example, a perforated plate in a bowl-jaw shape, an inclined jaw shape, or the like formed by arranging a large number of cuts in a metal plate and extruding the cut portions to form many jaw-shaped holes. In this case, the weight of the remaining porous frame for the mold is about 15 to 16 kg.
There are various types of open frames such as C steel, square pipe steel, wood, synthetic resin, and combinations thereof.
[0011]
The connection assembly of the remaining perforated frame 1 for formwork is performed by setting an anchor bolt 11 on a base 10 with a connecting body 50a having several pieces connected in advance, and threading with the side indicated as “up” upward. An anchor bolt 11 is passed through the hole 9 and the nut 12 is used to stand on the foundation and fixed.
The connection of the remaining perforated frames 1 for the formwork is performed by a connection fitting 14 made of flat steel and having screw holes 13 corresponding to the four female screw portions 8.
With the remaining perforated frame for formwork 1 arranged side by side on the foundation, the connecting metal fittings 14 are placed on the lowermost and uppermost parts so as to straddle both frames, and the bolts 15 are passed through the screw holes 13 and screwed into the female screw portions 8. The first stage is formed while connecting and fixing both by tightening.
The second-stage mold residual porous frame 1 is placed so that the center is located at the joint portion between the first-stage mold residual porous frames 1, and the connection fitting already fixed to the first-stage mold frame A bolt is passed through 14 and screwed into the female screw portion 8 of the remaining formwork porous frame 1 placed on the second stage to connect and fix the second form residual formwork porous frame 1 on the first stage. Go. At the same time, connecting metal fittings 14 are applied to the contact portions of the remaining perforated frames 1 and 2 of the second stage and the center of the remaining perforated frame 1 of the first stage, and the two remaining perforated frames are bolted to each other. And the connection fitting 14 for connection and fixation.
A bolt 15 is passed through the screw through hole 13 to be connected and fixed. The above operation is repeated, and the posture and position of the residual porous frame 1 for the formwork are fixedly supported and hidden by appropriately welding the anchor 17 appropriately set on the foundation and the separator 18 made of a reinforcing bar or the like on the opposite side. The remaining form 19 is formed.
It is also possible not to use the connecting metal fittings 14 or to reduce the use of the connecting metal fittings 14 and to connect and fix them with nuts through bolts 9 and 9. As a result, it is possible to eliminate or reduce the use of the connection fitting, thereby reducing the cost.
It is also possible to use an L-shaped, U-shaped or T-shaped connecting bracket depending on the place of use.
Assembling a structure in which the remaining perforated frame for formwork 1 is connected in advance by about 3 to 5 pieces by 1 to 2 pieces in width is good in terms of strength and efficiency.
The direction of the inclined hole 6 is set such that the concrete projection is formed upward, downward, or laterally depending on the flow viscosity of the concrete to be poured.
[0012]
When constructing the formwork, the residual porous form 1 for the formwork is as light as 12 kg even if one piece is heavy, so that it is easy to assemble it into a portable formwork without one operator having to carry heavy equipment. And it is tough, so it is easy to carry multiple pieces in advance, so that it can be easily suspended by heavy equipment or carried by several people to assemble the formwork. Efficiency can be greatly increased.
Further, more efficient construction in which a plurality of sheets are connected at a factory and transported to the site is realized. In addition, more efficient operations such as connecting a flat form plate or a curved form plate at a factory to form a supporting pillar form that forms a polygonal supporting body or a cylindrical body and carrying it to the site for construction can be easily performed.
In addition, the connection of a plurality of remaining porous frames and the formation of the support form in advance at the factory or site can be performed easily, quickly and cheaply by welding instead of bolts, so that more efficient construction and lower cost are realized. .
[0013]
6 to 8, an example of a method of constructing the concrete skeleton 21 using the remaining porous frame 1 for a formwork will be described.
(1) a foundation forming step for forming the foundation 10 (FIG. 6);
(2) A hidden remaining formwork section forming step of connecting the remaining porous frame 1 for formwork to a portion to be buried underground, supporting the posture with the separator 18 inside the assembling to form the hidden remaining formwork section 22 ( (Fig. 6),
(3) Underground concrete placing step of placing concrete 23 in the hidden remaining formwork 22 (FIG. 6);
(4) In a state where the underground concrete skeleton 24 cast in the underground concrete casting step is hardened, a portion exposed to the front is connected to a rectangular remaining formwork decorative decorative frame 25 for the formwork, and the separator 18 is positioned inside the assembled form. And the unexposed parts such as the surface hidden in the ground and the jointed concrete surface are assembled with the residual porous frame 1 for the formwork, and the exposed residual formwork 26 formed by supporting the posture with the separator 18 inside the residual formwork is hidden. Forming the exposed remaining form part on the part 22 (FIG. 7);
(5) The above-mentioned concrete section 21 is completed together with the above-ground concrete section 27 by the above-mentioned concrete section casting step (FIG. 7) for placing concrete in the exposed remaining formwork section 26 (FIG. 8).
The hidden remaining formwork portion 22 and the exposed remaining formwork portion 26 perform the formation of the formwork and concrete placement several times depending on the height and width of the concrete frame.
Further, the concrete is poured at any time, for example, for each step of the formwork portion or for a plurality of steps.
It is preferable that the foundation is formed by forming the foundation form with the remaining porous form 1 for the form.
Also, in the case of a long concrete body, the joint construction is performed several times, but since the joint part on the side is innumerable uneven shape, the bending shear strength of the joint part is Since it achieves the same mechanical properties, a high-quality cast-in-place concrete body is realized.
The hidden remaining formwork 22 forms the back of the exposed remaining formwork 26 together with the underground portion, and such a configuration also falls within the technical scope of the present invention.
[0014]
Different Embodiments of the Invention
Next, different embodiments of the present invention shown in FIGS. 9 to 11 will be described.
In the description of the different embodiments of the present invention, the same components as those in the first embodiment of the present invention are denoted by the same reference numerals, and redundant description will be omitted.
[0015]
The main difference between the second embodiment of the present invention shown in FIGS. 9 and 10 and the first embodiment of the present invention is the structure of the open frame body 30 constituting the residual porous frame 29 for the formwork. The front part is provided with three body edge L steels 31, 32, 33 arranged side by side at an interval above and below, and both ends of the body edge L steels 31, 32, 33 are connected and fixed. And a perforated plate 37 made of synthetic resin or metal, in which screw holes 9 are appropriately provided in each of the L steels except for the middle waist edge L steel 32 and locking holes 36 are provided in appropriate portions. The present invention is characterized in that a perforated plate mounting hole 39 for locking and fixing with a mounting bracket 38 is provided on the entire body edge L steel.
When assembling the formwork 40 as shown in FIG. 10, the connecting bodies 50 a to 50 n connecting several open frame bodies 30 are erected and the separator 18 is fixed at a predetermined inclination to the anchor on the base side. (Not shown) and the connection body are welded to fix the standing state, and the connection assembled perforated plate 37 is attached.
Further, the L edge steels 31, 32, 33 and the pillar L steels 34, 35 are separated from each other, and screw through holes for fixing each to a predetermined portion are provided. The opening frame 30 may be formed and used. This achieves effects such as lower cost because there is no need to assemble or weld the opening frame body, and reduction in transportation cost because more trucks can be transported.
Also, do not use expensive L-steel that is specially bent plate steel so that the inner corners are not rounded. Instead, cut a general-purpose inexpensive L-steel and weld or bolt the end without any processing. Since it can be formed, it is possible to obtain an effect that the formation cost can be reduced.
Further, in this case, the nut on the body edge on the front side can be removed after hardening the concrete, removed, and used repeatedly.
Further, the perforated plate 37 is preferably attached to the opening frame body 30 by welding before or during the formation of the mold. In such a case, the cost can be reduced because the locking hole 36, the perforated plate mounting hole 39, and the mounting bracket 38 are not required.
[0016]
The main difference between the third embodiment of the present invention shown in FIG. 11 and the first embodiment of the present invention is that the connecting fitting 42 is a T-shaped fitting main body 43 and a tip portion of the fitting main body 43. The point that the front end formed so as to protrude forward is provided with locking portions 45, 45, 45 having U-shaped tips 44, 44, 44.
The opening frame 2 is tilted so as to avoid the frame, and is contacted with the opening frame 2, turned to the left while being pressed and hit, and hammered to fit the fitting portions 44, 44, 44 into the corresponding threaded holes 9, 9. , 9 to connect the open frame bodies 2 and 2 to each other.
There is no need to tighten the screws, and work efficiency can be increased.
[0017]
The main difference between the fourth embodiment of the present invention shown in FIG. 12 and the first embodiment of the present invention is that the formation of the open frame body and the remaining porous frames 52a to 52n for the formwork is performed on site. It is formed by assembling a steel frame and retrofitting the perforated plate 30.
The part shown in FIG. 12 is a joint part at the side wall part of the mold 53.
The aggregate made of L steel forming the mold is formed by columns 54a to 54n and trunk edges of trunk edges 55a to 55n.
The anchor bolt 11 is erected on the form-forming portion, and a base 57 on which a cross-shaped anchor 56 is appropriately erected is cast inside.
The torso 55a is fixed to the base 57 with the back outside, the support 55b and the support 55i are connected by bolts 15 and nuts, and the torso 55a to 55h are connected while appropriately connecting the supports.
During assembling, the posture is fixed by appropriately connecting the body edge and the anchor 56 with the separator 18. In connection with the separator 18, the tip of the material 18 is made to flow in a predetermined manner to form a hook, and one is passed through a threaded hole in the body edge, and the other is fastened and fixed to the anchor 56 with a cross line using a cross shape. By doing so, work can be performed even in rainy weather without the need for a welding machine.
The perforated plate 30 is fixed to the body edge with an iron plate drill screw, welding, mounting hardware, or the like.
When the cast concrete body is hardened by the combination of the two body edges and the ten columns, the columns can be removed by removing the bolts and used repeatedly. For example, it is possible to use a column at a portion where a concrete skeleton has been formed as a formwork of the next step and leave it in the ground at the final step.
[0018]
The fifth embodiment of the present invention shown in FIG. 13 is mainly different from the first embodiment of the present invention in that an opening 13 is appropriately provided with a threaded hole 13 and the bolts 15 are connected to each other. And a nut 12, and a frame connecting portion 59 formed by threading a male screw 58 into which the nut 12 is screwed, and a separator 18 such as a reinforcing bar for supporting the posture of the opening frame 1. The present invention is characterized in that a connection means 61 having a substantially L-shaped rod shape and comprising a separator weld 60 is provided.
With such a configuration, the orientation of the separator welding portion 60 can be rotated vertically or horizontally to adjust the orientation to the orientation of the separator, whereby the welding portion 62 can have a wide range, It achieves sufficient welding strength both visually and in practice.
It is also possible to adopt a configuration in which the separator welding portion can be rotated in the horizontal direction or the vertical direction. For example, the separator welding portion can be rotatably supported by a shaft such as a caulking pin at the frame connecting portion. The rotation is preferably performed in a tight and frictional manner by swaging. With such a configuration, parallel contact between the separator and the welded portion of the separator from various directions can be realized.
[0019]
【The invention's effect】
As is clear from the above description, the following effects can be obtained in the present invention.
[0020]
(1) At the time of forming the formwork, the residual porous frame for the formwork is 1200 mm x 600 mm x 40 mm and the thickness of the perforated plate is 0.8 mm, even if the opening frame is made of L steel. Since it is lightweight and tough with 12 kg, it is easy to assemble it into a portable formwork without having to carry heavy equipment by one worker, and connect a plurality of sheets in advance, It can be lifted by heavy equipment or carried by several people to assemble the formwork, and while assembling the formwork, the work of connecting multiple remaining porous frames simultaneously by welding, bolting and connecting metal fittings can be advanced. Can greatly improve the construction efficiency, and because it is lightweight, it can be transported to the site by truck in large quantities at one time, greatly reducing the construction cost To The effect can be obtained.
In addition, it is possible to obtain the effect that the efficiency can be easily achieved, such as connecting a plurality of sheets at a factory and transporting them to the site, or forming a pillar formwork that forms a pillar concrete frame at the factory and transporting it to the site. it can.
In addition, the connection of a plurality of metal residual porous frames in advance at a factory or site and the formation of a support form can be easily and quickly performed by welding instead of bolts, and bolt through holes and nuts for connection to the opening frame. It is possible to achieve an effect of realizing lower cost and more efficient construction and being able to flexibly cope with various forms of formwork.
(2) Since a plurality of small concrete projections form an uneven surface due to the inclined hole and the jaw hole, especially the jointed portion has an infinite number of irregularities, and the bending strength of the jointed portion is almost the same as that of unitary punching. In addition to realizing the mechanical properties of the material, it eliminates special treatment for forming unevenness, construction that can be done even by skilled workers because it is a residual frame, unnecessary removal of formwork and realization of safe workability The effect of realizing efficient low-cost construction can be obtained.
(3) When the opening frame is made of metal, there is no dust when cut, and 100% of the waste can be recycled, so that there is no processing burden.
[0021]
(4) Separator welding for welding a frame connecting portion formed by threading a male screw into which the nuts are screwed to connect the opening frames with a nut, and a separator such as a reinforcing bar for supporting the posture of the opening frame. In the case where the connecting means in the form of a substantially L-shaped rod is provided, the welding work with the separator applied is very easy because the welded portion of the separator is securely fixed. When the vertical angle of the separator weld is attached to the horizontal part, the horizontal angle of the separator weld can be adjusted freely, so the welded part of the separator and the separator weld can be made large, and it looks real In addition, the effect of realizing reliable welding can be obtained.
Further, the connecting means may use the connecting holes of the connecting bolts, and the formation of the connecting holes can be reduced, and the use of the bolts is reduced by the use of the connecting means, which is economical.
[Brief description of the drawings]
FIG. 1 is a rear view of a first embodiment of the present invention.
FIG. 2 is a partially enlarged view of the perforated plate of FIG.
FIG. 3 is a functional conceptual diagram of a perforated plate according to the first embodiment of the present invention.
FIG. 4 is an assembly view of a mold according to the first embodiment of the present invention.
FIG. 5 is a connection state diagram of the connection fitting according to the first embodiment of the present invention.
FIG. 6 is a view showing the formation of a hidden remaining formwork according to the first embodiment of the present invention.
FIG. 7 is a view showing the formation of an exposed remaining formwork portion according to the first embodiment of the present invention.
FIG. 8 is a completed view of a concrete skeleton according to the first embodiment of the present invention.
FIG. 9 is an exploded perspective view of the second embodiment of the present invention.
FIG. 10 is a view showing a formwork assembly work according to the second embodiment of the present invention.
FIG. 11 is a view showing how to attach a connection fitting according to the third embodiment of the present invention.
FIG. 12 is a view showing a formwork assembly process according to a fourth embodiment of the present invention.
FIG. 13 is an assembled perspective view of a mold according to a fifth embodiment of the present invention.
[Explanation of symbols]
1: residual porous frame for mold, 2: open frame,
3: concrete fluid, 4: sloping wall,
6: substantially inclined hole, 7: perforated plate,
8: Female thread part, 9: Screw through hole,
10: foundation, 11: anchor bolt,
12: Nut, 13: Screw-through hole,
14: Connecting bracket, 15: Bolt,
16: washer, 17: anchor,
18: separator, 19: hidden remaining formwork,
20: Concrete small protrusion, 21: Concrete skeleton,
22: hidden remaining formwork portion, 23: concrete,
24: Underground concrete frame,
25: Remaining concrete decorative frame for formwork,
26: Exposed remaining formwork 27: Above ground concrete skeleton
29: Residual porous frame for mold, 30: Open frame,
31: Edge L steel, 32: Edge L steel,
33: Body edge L steel, 34: Strut L steel,
35: pillar L steel, 36: locking hole,
37: perforated plate, 38: mounting bracket,
39: perforated plate mounting hole, 40: formwork,
42: connecting fitting, 43: fitting body,
44: fitting part, 45: locking part,
50a to 50c: Connected bodies 52a to 52c: Residual porous frame for form 53: Form 54a to 54j: Posts 55a to 55h: Trunk 56: Anchor 58: Male screw 59: Frame connection 60: Separator weld 61 : Connecting means 62: welding part.

Claims (5)

コンクリート打設用型枠を形成するための型枠用残存多孔枠であって、ボルトや溶接や連結金具などにより複数枚連結した状態で移動させても容易には破損したり変形したりしない強靭な金属製部材からなる開口枠体と、この開口枠体に該開口を覆うように張られるあるいは張られた、金属板に多数の切込みを配列設けて該金属板を引き伸ばして形成した傾斜壁間に形成された孔や、金属板に形成した切込部分を押し出して形成した顎状部位により形成された孔などの、打設されたコンクリート流動物が外側に漏れ難く且つコンクリートが充填されてコンクリート小突起を形成する孔を多数配列設けてなる多孔板とからなることを特徴とする型枠用残存多孔枠。Residual porous frame for formwork for forming concrete casting formwork.Strong enough not to be easily damaged or deformed even if it is moved with multiple pieces connected by bolts, welding or connecting metal fittings Frame made of a transparent metal member, and an inclined wall formed by stretching the metal plate by arranging a number of cuts in a metal plate stretched or stretched to cover the opening in the opening frame. The cast concrete fluid, such as the hole formed in the hole or the hole formed by the jaw-shaped portion formed by extruding the cut portion formed in the metal plate, is hardly leaked to the outside and is filled with concrete. A residual porous frame for a mold, comprising a perforated plate provided with a large number of holes forming small projections. 開口枠体を形成する金属製骨材がバラ状態からなり、この金属製骨材を型枠形成時に開口枠体に組み上げて、組み上げたこの開口枠体に多孔板を張り付けるようにしてなることを特徴とする請求項1記載の型枠用残存多孔枠。The metal aggregate forming the opening frame is in a loose state, and the metal aggregate is assembled into the opening frame at the time of forming the mold, and a perforated plate is attached to the assembled opening frame. The residual porous frame for a mold according to claim 1, characterized in that: ナットにより開口枠体同士を連結する該ナットが螺合する雄ネジが螺刻されてなる枠体連結部と、該開口枠体の姿勢を支持する鉄筋などのセパレーターを熔接するセパレーター溶接部とからなるL形態のあるいはL形態にできる連結手段を設けてなることを特徴とする請求項1、2いずれか記載の型枠用残存多孔枠。A frame connecting portion formed by threading a male screw to which the nut is screwed to connect the opening frames with a nut, and a separator welding portion that welds a separator such as a reinforcing bar that supports the posture of the opening frame. The residual porous frame for a mold according to any one of claims 1 and 2, further comprising a connecting means having an L shape or an L shape. 開口枠体、この開口枠体に該開口を覆うように張られるあるいは張られた、金属板に多数の切込みを配列設けて該金属板を引き伸ばして形成した傾斜壁間に形成された孔や、金属板に形成した切込部分を押し出して形成した顎状部位により形成された孔などの、打設されたコンクリート流動物が外側に漏れ難く且つコンクリートが充填されてコンクリート小突起を形成する孔を多数配列設けてなる多孔板とからなる型枠用残存多孔枠と、型枠用残存コンクリート化粧枠と、地面に当接するなどして隠れる部位や打ち継ぎ部位を、前記型枠用残存多孔枠を接続し組み上げ形成した隠れ残存型枠部、地面から露出し景観を形成する部位を、前記型枠用残存コンクリート化粧枠を接続し組み上げ形成した露出残存型枠部とからなる残存型枠と、この残存型枠に充填したコンクリートとからなることを特徴とするコンクリート躯体。An opening frame, a hole formed between inclined walls formed by stretching the metal plate by arranging a number of cuts in the metal plate and stretching or stretching the opening frame so as to cover the opening, A hole, such as a hole formed by a jaw-like portion formed by extruding a cut portion formed in a metal plate, which is hard to leak the poured concrete fluid to the outside and is filled with concrete to form small concrete projections. The remaining perforated frame for the formwork consisting of a multiplicity of perforated plates, the remaining decorative decorative frame for the formwork, and the part or the spliced part that is hidden by contact with the ground, etc. Connected and assembled hidden residual formwork portion, a part exposed from the ground and forming a landscape, a residual formwork consisting of an exposed residual formwork portion formed by connecting and forming the residual concrete decorative frame for formwork, and Concrete skeleton, characterized by comprising a filled to exist formwork concrete. 開口枠体、この開口枠体に該開口を覆うように張られるあるいは張られた、金属板に多数の切込みを配列設けて該金属板を引き伸ばして形成した傾斜壁間に形成された孔や、金属板に形成した切込部分を押し出して形成した顎状部位により形成された孔などの、打設されたコンクリート流動物が外側に漏れ難く且つコンクリートが充填されてコンクリート小突起を形成する孔を多数配列設けてなる多孔板とからなる型枠用残存多孔枠を、地中埋設される部位に接続し組み上げ内側で鉄筋などのセパレーターで姿勢を支持して隠れ残存型枠部を形成する隠れ残存型枠部形成工程と、前記隠れ残存型枠部にコンクリートを打設する地中部コンクリート打設工程と、この地中部コンクリート打設工程で打設した地中コンクリート躯体が硬化した状態で、表に露出する部位を型枠用残存コンクリート化粧枠を接続し組み上げ内側で鉄筋などのセパレーターで姿勢を支持するとともに地面に隠れる面やコンクリート打ち継ぎ面などの非露出部位を前記型枠用残存多孔枠で組み上げ内側で鉄筋などのセパレーターで姿勢を支持してなる露出残存型枠部を前記隠れ残存型枠部上に形成する露出残存型枠部形成工程と、前記露出残存型枠部にコンクリートを打設する地上部コンクリート打設工程、とからなることを特徴とするコンクリート躯体の施工方法。An opening frame, a hole formed between inclined walls formed by stretching the metal plate by arranging a number of cuts in the metal plate and stretching or stretching the opening frame so as to cover the opening, A hole, such as a hole formed by a jaw-like portion formed by extruding a cut portion formed in a metal plate, which is hard to leak the poured concrete fluid to the outside and is filled with concrete to form small concrete projections. A residual porous frame for a formwork consisting of a multiplicity of perforated plates is connected to the part to be buried underground, and the posture is supported by a separator such as a reinforcing bar inside the assembling inside to form a hidden residual formwork part. A form part forming step, an underground concrete placing step of placing concrete in the hidden remaining form part, and a state in which the underground concrete skeleton cast in the underground concrete placing step is hardened. The part exposed on the table is connected to the remaining concrete decorative frame for formwork, the posture is supported by a separator such as a reinforcing bar inside the assembling, and the unexposed part such as the surface hidden by the ground or the concrete joint surface is left for the formwork. An exposed remaining form part forming step of forming an exposed remaining form part formed on the hidden remaining form part by supporting a posture with a separator such as a reinforcing bar inside the assembling with the perforated frame; And a step of placing concrete above the ground.
JP2002312377A 2002-10-28 2002-10-28 Residual perforated frame for formwork, concrete frame and concrete frame construction method Expired - Fee Related JP4067091B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008291436A (en) * 2007-05-22 2008-12-04 Free Kogyo Kk Concrete placing form, structure using it, and construction method for the structure
CN104674986A (en) * 2015-02-05 2015-06-03 姚攀峰 Multi-cavity concrete-filled steel tubular wall with internal pre-machined semi-continuous reinforcement cage and construction method
US20230124990A1 (en) * 2020-03-31 2023-04-20 SOCIéTé BIC Peelable ink composition for porous substrates

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008291436A (en) * 2007-05-22 2008-12-04 Free Kogyo Kk Concrete placing form, structure using it, and construction method for the structure
CN104674986A (en) * 2015-02-05 2015-06-03 姚攀峰 Multi-cavity concrete-filled steel tubular wall with internal pre-machined semi-continuous reinforcement cage and construction method
CN104674986B (en) * 2015-02-05 2017-02-22 姚攀峰 Multi-cavity concrete-filled steel tubular wall with internal pre-machined semi-continuous reinforcement cage and construction method
US20230124990A1 (en) * 2020-03-31 2023-04-20 SOCIéTé BIC Peelable ink composition for porous substrates

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