JP2004225428A - Spacer for reinforced concrete wall - Google Patents

Spacer for reinforced concrete wall Download PDF

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Publication number
JP2004225428A
JP2004225428A JP2003015967A JP2003015967A JP2004225428A JP 2004225428 A JP2004225428 A JP 2004225428A JP 2003015967 A JP2003015967 A JP 2003015967A JP 2003015967 A JP2003015967 A JP 2003015967A JP 2004225428 A JP2004225428 A JP 2004225428A
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reinforced concrete
concrete wall
spacer
bolt
suspension member
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JP3770877B2 (en
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Koichi Kawahara
幸市 川原
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MARUESU TEKKO KK
SAGAGUMI KK
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MARUESU TEKKO KK
SAGAGUMI KK
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/20—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires
    • E04C5/201—Spacer blocks with embedded separate holding wire or clips

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To simplify structure to enhance the strength of a hanging member and a projecting part and to stabilize support to a reinforcement to positively hold the cover. <P>SOLUTION: A spacer S for a reinforced concrete wall provided between a reinforcement assembly T and one form K in providing forms K on both sides of the reinforcement assembly T with horizontal reinforcements Ta and vertical reinforcements Tb arranged in grated shape and pouring concrete between the forms K to form the reinforced concrete wall, is provided with the hanging member 20 having a locking part 10 locked to the horizontal reinforcement Ta, at one end and hung from the horizontal reinforcement Ta by the locking part 10, and the projecting part 30 protrusively provided at the other end of the hanging member 20 to abut on the form K. The hanging member 20 is formed of a metal plate 21 with a length laid between the adjacent horizontal reinforcements Ta, and the projecting part 30 is formed of concrete 32. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、鉄筋コンクリート壁の施工時に鉄筋と型枠の間に設けられ、所謂「かぶり」といわれる鉄筋組体と型枠との間隔を一定に保持するとともに、構築される鉄筋コンクリート壁の耐久性にも寄与する鉄筋コンクリート壁用スペーサに関する。
【０００２】
【従来の技術】
一般に、鉄筋コンクリート壁を構築する際には、図１１に示すように、横筋Ｔａ及び縦筋Ｔｂを格子状に組んだ鉄筋組体Ｔの両側に型枠Ｋを設けて、この型枠Ｋ間にコンクリートを流し込んで構築する。このような鉄筋コンクリート壁の構築においては、鉄筋組体Ｔと一方の型枠Ｋとの間に、この型枠Ｋを支持し、所謂かぶりＤ（鉄筋組体Ｔと型枠Ｋ（鉄筋コンクリート壁の外側）との距離）を一定に保持する鉄筋コンクリート壁用スペーサＳを設けて行なう。
【０００３】
従来、この種の鉄筋コンクリート壁用スペーサとしては、例えば、特許文献１（特開平５−１７１７４２号公報）に掲載されたものが知られている。
図１１に示すように、この鉄筋コンクリート壁用スペーサＳは、一本の線材を折り曲げて構成され、一端に横筋Ｔａに係止される係止部２を有しこの係止部２により横筋Ｔａに吊下される吊下部材１と、吊下部材１の他端に突設され型枠Ｋに当接する突出部３と、突出部３の基端に設けられ鉄筋組体Ｔの前側に設けられる補強用の金網４に係止されるフック５とを備えている。
この鉄筋コンクリート壁用スペーサＳを鉄筋組体Ｔに多数設け、突出部３に型枠Ｋを支持させ、かぶりＤを保持させる。
【０００４】
【特許文献１】
特開平５−１７１７４２号公報
【０００５】
【発明が解決しようとする課題】
ところで、上記従来の鉄筋コンクリート壁用スペーサＳにあっては、線材で形成されているので、吊下部材１や突出部３が型枠Ｋからの圧縮力に対して変形しやすく、また、コンクリートを流し込む際、コンクリートの流下衝撃，コンクリートの打ち上がりによる揚圧，振動機による接触衝撃等による衝撃力によっても変形しやすく、型枠Ｋを支持してかぶりＤを確保する機能に劣るという問題があった。
更に、鉄筋コンクリート壁用スペーサＳは、鉄筋より径の小さい金網４に係止されているので、金網４の変形に追従して動くことから鉄筋に対する支持が不安定であり、この点でも、確実にかぶりＤを保持できないという問題もあった。
【０００６】
これを解決するために、鉄筋コンクリート壁用スペーサＳ全体を、金属板を折曲形成して構成することも考えられるが、折曲構造が複雑なので製造が煩雑になり、また、突出部３の強度も必ずしも高くなく、更に、金網４の変形に追従して動く欠点は解消されないので、必ずしも良い解決方法とはいえない。
また、突出部３は金属製であり、その先端がコンクリート壁の表面に露出するようになるので、ここから、腐食が進行しやすくなるという問題もある。
【０００７】
本発明は上記の問題点に鑑みて為されたもので、構造を簡単にして、吊下部材及び突出部の強度を高くし、鉄筋に対する支持を安定化させ、かぶりを確実に保持できるようにするとともに、耐食性の向上を図った鉄筋コンクリート壁用スペーサを提供することを目的とする。
【０００８】
【課題を解決するための手段】
このような目的を達成するための本発明の鉄筋コンクリート壁用スペーサは、横筋及び縦筋を格子状に組んだ鉄筋組体の両側に型枠を設け該型枠間にコンクリートを流し込んで鉄筋コンクリート壁を成形する際、上記鉄筋組体と一方の型枠との間に設けられる鉄筋コンクリート壁用スペーサにおいて、
一端に横筋に係止される係止部を有し該係止部により横筋に吊下される吊下部材と、該吊下部材の他端に突設され型枠に当接する突出部とを備え、
上記吊下部材を隣り合う横筋間に架け渡される長さの金属板で形成し、上記突出部をコンクリートで形成した構成としている。
【０００９】
これにより、吊下部材が金属板で構成され、突出部がコンクリートで構成されるので、剛性が大きくなり強度が高くなる。そのため、型枠及び鉄筋間に生じる圧縮力に対して、あるいは、型枠へコンクリート充填する際に発生する、コンクリートの流下衝撃，コンクリートの打ち上がりによる揚圧，振動機による接触衝撃等の衝撃に対して、変形しにくくなり、脱落したり、ずれたりする事態が防止され、かぶりを確実に保持できるようになる。
【００１０】
また、吊下部材が金属板が隣り合う横筋間に架け渡される長さに形成され、その端部に突出部を固設したので、突出部の真裏に横筋が当接し、この横筋が突出部を支持するようになる。そのため、従来の金網に支持するのに比較して、この鉄筋は径が大きく剛性も高いので、本壁用スペーサが、確実に支持され、上記のような押圧力や衝撃に対して、動きにくくなり、この点でも、かぶりを確実に保持できるようになる。
【００１１】
更に、突出部をコンクリートで形成しているので、コンクリートの外壁に金属が露出しないので、耐食性が向上させられる。
更にまた、本壁用スペーサは、金属板にコンクリートを付設しただけなので、構造も単純になる。
【００１２】
また、必要に応じ、上記吊下部材を横筋及び縦筋と同種の鋼材で形成した構成としている。鉄筋と鉄筋コンクリート壁用スペーサ間において、異種金属間腐食が発生せず、鉄筋及び本壁用スぺーサの耐久性の向上に寄与できる。
【００１３】
更に、必要に応じ、上記吊下部材の他端に上記突出部に埋設されて該突出部を固着する突起を形成した構成としている。確実に吊下部材に突出部を固設できる。
更にまた、必要に応じ、上記突起をボルトで構成し、該ボルトの頭を上記吊下部材の他端に溶接固定している。既存のボルトを利用し、ボルト頭を溶接するだけなので、製造が容易に行なわれる。また、ボルトには雄ネジが形成されているので、突出部が抜けにくくなる。
【００１４】
また、必要に応じ、上記突出部を上記吊下部材に対して上下方向の位置を調整可能に設けている。突出部の位置を、横筋の間隔に合わせて上下方向に対して調節することができるので、種々の鉄筋に対応させることができ、汎用性が増して利便性が向上させられる。
【００１５】
更に、必要に応じ、上記突出部の裏面側にボルトを突設し、上記吊下部材に上下方向に沿う長孔を形成し、上記突出部のボルトを上記長孔に挿通し該ボルトにナットをねじ込んで該突出部を吊下部材に固定している。
突出部を、ボルトにナットをねじ込んで吊下部材へ固定するので、固定する際はナットを締めればよく、突出部の位置調節を容易に行なうことができるだけでなく、容易に吊下部材に固定できる。
【００１６】
また、必要に応じ、上記突出部の裏面側にナットを埋設し、上記吊下部材に上下方向に沿う長孔を形成し、上記長孔に挿通したボルトを上記ナットにねじ込んで該突出部を吊下部材に固定している。
突出部を、ボルトをナットにねじ込んで突出部を吊下部材へ固定するので、固定する際はボルトをねじ込めばよく、突出部の位置調節を容易に行なうことができるだけでなく、容易に吊下部材に固定できる。
【００１７】
【発明の実施の形態】
以下、添付図面に基づいて、本発明の実施の形態に係る鉄筋コンクリート壁用スペーサについて詳細に説明する。
図１及び図２には、本発明の第一の実施の形態に係る鉄筋コンクリート壁用スペーサＳを示している。この鉄筋コンクリート壁用スペーサＳの基本的構成は、一端に横筋Ｔａに係止される係止部１０を有しこの係止部１０により横筋Ｔａに吊下される吊下部材２０と、吊下部材２０の他端に突設され型枠Ｋに当接する突出部３０とを備えてなる。
【００１８】
詳しくは、吊下部材２０は、横筋Ｔａ及び縦筋Ｔｂと同種の鋼材であって、隣り合う横筋Ｔａ間に架け渡される長さを有した長方形状の金属板２１で形成されている。
係止部１０は金属板２１の一端部１１を下向きにして一体に折曲形成され、横筋Ｔａが嵌合する凹部１２を構成する。係止部１０の一端１１ａは、吊下が容易になるよう、吊下部材２０の裏面２３に対して離間方向に折り曲げられている。
【００１９】
突出部３０は、コンクリート３２で紡錘形状に型成形され、その高さは保持しようとするかぶりＤと等しい長さを有するように形成されている。吊下部材２０の他端には、突出部３０に埋設されてこの突出部３０を固着する突起３１が形成されている。
【００２０】
突起３１は、ボルト３３で構成されており、このボルト３３の頭が吊下部材２０の横筋Ｔａと接触する位置に対応させて、吊下部材２０の表面２２に溶接固定されている。
突起３１を突出部３０に埋設して形成したので、確実に吊下部材２０に突出部３０を固設でき、また、突起３１をボルト３３で構成し、このボルト３３の頭を吊下部材２０の他端に溶接固定して構成したので、製造が容易に行なわれる。また、ボルト３３には雄ネジが形成されているので、突出部３０が抜けにくくなる。
【００２１】
この実施の形態に係る鉄筋コンクリート壁用スペーサＳを製造する場合は、例えば、吊下部材２０（金属板２１）の一端を折曲して係止部１０を形成し、他端にボルト３３を溶接固定する。
それから、図３に示すように、例えば、突出部３０と同形状の凹型４０を用い、この凹型４０にコンクリート３２を充填し、ボルト３３を型の上面中央に位置を合わせて型内へ挿入し、その後、コンクリート３２を一定時間養生して脱型して製造する。このように製造された壁用スペーサＳは、金属板２１に突出部３０のコンクリートを付設しただけなので、構造も単純になる。
【００２２】
従って、この実施の形態に係る鉄筋コンクリート壁用スペーサＳを使用するときは、図１及び図２に示すように、横筋Ｔａ及び縦筋Ｔｂを格子状に組んだ鉄筋組体Ｔの両側に型枠Ｋを設け、鉄筋コンクリート壁用スペーサＳを、その係止部１０を横筋Ｔａに掛けて鉄筋組体Ｔに吊下する。この際、鉄筋コンクリート壁用スペーサＳを、鉄筋組体Ｔに適宜の間隔毎に多数列設する。それから、各型枠Ｋの間にコンクリートを充填し始め、適宜、充填するコンクリートに空洞が生じないよう、振動機によって振動を加える。
それから、コンクリートを所要時間養生し、型枠Ｋを外して鉄筋コンクリート壁を構築する。
【００２３】
この場合、鉄筋コンクリート壁用スペーサＳは、吊下部材２０が金属板で構成され、突出部３０がコンクリートで構成されるので、剛性が大きくなり強度が高くなる。そのため、型枠Ｋ及び鉄筋組体Ｔ間に生じる圧縮力に対して、あるいは、型枠Ｋへコンクリート充填する際に発生する、コンクリートの流下衝撃，コンクリートの打ち上がりによる揚圧，振動機による接触衝撃等の衝撃に対して、変形しにくくなり、脱落したり、ずれたりする事態が防止され、かぶりＤを確実に保持できるようになる。
【００２４】
また、吊下部材２０が隣り合う横筋Ｔａ間に架け渡される長さに形成され、その端部に突出部３０を固設したので、突出部３０の真裏に横筋Ｔａが当接し、この横筋Ｔａが突出部３０を支持するようになる。そのため、従来の金網に支持するのに比較して、この鉄筋は径が大きく剛性も高いので、壁用スペーサＳが、確実に支持され、上記のような押圧力や衝撃に対して、動きにくくなり、この点でも、かぶりＤを確実に保持できるようになる。
【００２５】
更に、突出部３０をコンクリートで形成しているので、コンクリートの外壁に金属が露出しないので、耐食性が向上させられる。
更にまた、金属板２１を横筋Ｔａ及び縦筋Ｔｂと同種の鋼材で形成しているので、鉄筋と鉄筋コンクリート壁用スペーサＳ間において、異種金属間腐食が発生せず、鉄筋の耐久性の向上に寄与できる。
【００２６】
図４及び図５には、本発明の第二の実施の形態に係る鉄筋コンクリート壁用スペーサＳを示している。
この鉄筋コンクリート壁用スペーサＳは、上記と同様に、係止部１０と吊下部材２０と、突出部３０とを備えている。そして、吊下部材２０に吊下部材２０の上下方向に沿う所定の大きさの長孔２５を形成し、この長孔２５に突出部３０の裏面側に突設されたボルト３３を挿通し、このボルトにナット３４をねじ込んで突出部３０を吊下部材２０に固定している。
これ以外は、第一の実施の形態に係る鉄筋コンクリート壁用スペーサＳと同様である。
【００２７】
この実施の形態に係る鉄筋コンクリート壁用スペーサＳを製造する場合は、吊下部材２０（金属板２１）の一端に係止部１０を形成し、上下方向に沿い、ボルト３３が挿通できる程度の幅とある程度の長さを有した長孔２５を形成する。
一方、ボルト３３を埋設した、突出部３０を型成形しておく。
【００２８】
従って、この実施の形態に係る鉄筋コンクリート壁用スペーサＳを使用するときは、ボルト３３を吊下部材２０の表面２２から長孔２５に挿通し、吊下部材２０の裏面２３からナット３４をねじ込んで吊下部材２０に固定する。この場合、係止部１０を横筋Ｔａに掛けた際、突出部３０が横筋Ｔａの表に位置するよう、横筋Ｔａの間隔に合わせてボルト３３の位置を移動し、ナット３４をねじ込んで突出部３０を吊下部材２０へ固定する。このように、横筋Ｔａに、係止部１０を掛けて鉄筋コンクリート壁用スペーサＳを吊下する。
【００２９】
これにより、第一の実施の形態に係る鉄筋コンクリート壁用スペーサＳの作用，効果に加えて、突出部３０の位置を、吊下部材２０の長孔２５の範囲内において上下方向に対して調節可能に設けているので、横筋Ｔａの間隔に対応させることができ、利便性を向上できる。
また、突出部３０を、ボルト３３にナット３４をねじ込んで吊下部材２０へ固定するので、固定する際はナット３４を締めればよく、突出部３０の位置調節を容易に行なうことができ、操作性が向上させられる。
【００３０】
図６及び図７には、本発明の第三の実施の形態に係る鉄筋コンクリート壁用スペーサＳを示している。
この鉄筋コンクリート壁用スペーサＳは、係止部１０と吊下部材２０と、突出部３０を備えている。そして、吊下部材２０に吊下部材２０の上下方向に沿う所定の大きさの長孔２５を穿設し、この長孔２５に突出部３０の裏面側に埋設されたナット３４に、吊下部材２０の裏面２３から挿通されるボルト３３をねじ込んで突出部３０を吊下部材２０に固定している。
これ以外は、第一の実施の形態に係る鉄筋コンクリート壁用スペーサＳと同様である。
【００３１】
この実施の形態に係る鉄筋コンクリート壁用スペーサＳを製造する場合は、吊下部材２０（金属板２１）の一端に係止部１０を形成し、上下方向に沿い、ボルト３３が挿通できる程度の幅とある程度の長さを有した長孔２５を形成する。
一方、ナット３４を埋設した、突出部３０を型成形しておく。
【００３２】
従って、この実施の形態に係る鉄筋コンクリート壁用スペーサＳを使用するときは、ボルト３３を吊下部材２０の裏面２３から長孔２５に挿通し、ナット３４にねじ込んで突出部３０を固定する。この場合、係止部１０を横筋Ｔａに掛けた際、突出部３０が横筋Ｔａの表に位置するよう、横筋Ｔａの間隔に合わせてボルト３３の位置を移動し、ナット３４にねじ込んで突出部３０を吊下部材２０へ固定する。このように、横筋Ｔａに、係止部１０を掛けて鉄筋コンクリート壁用スペーサＳを吊下する。
【００３３】
これにより、第一の実施の形態に係る鉄筋コンクリート壁用スペーサＳの作用，効果に加えて、突出部３０の位置を、吊下部材２０の長孔２５の範囲内において上下方向に対して調節可能に設けているので、横筋Ｔａの間隔に対応させることができ、利便性を向上できる。
また、突出部３０を、ボルト３３をナット３４にねじ込んで突出部３０を吊下部材２０へ固定するので、固定する際はボルト３３をねじ込めばよく、突出部３０の位置調節を容易に行なうことができ、操作性が向上させられる。
【００３４】
図８及び図９には、本発明の第四の実施の形態に係る鉄筋コンクリート壁用スペーサＳを示している。
この鉄筋コンクリート壁用スペーサＳは、上記第二の実施の形態と同様に、係止部１０と長孔２５が設けられた吊下部材２０と、突出部３０とを備えている。上記第二の実施の形態と異なる点は、ボルト３３の雄ネジ部分を長く形成し、突出部３０の裏面３０ａと吊下部材２０の表面２２との間にもナット３４ａを螺合し、ナット３４とナット３４ａとで吊下部材２０を挾持して突出部３０を固定するようにし、ナット３４及びナット３４ａのボルト３３に対する位置調整により、突出部３０の突出寸法を可変にしている。そのため、かぶりＤの寸法に合わせて突出部３０の突出寸法を調節することができ、種々のかぶりＤに対応でき、汎用性が増加させられる。他の作用，効果は、第二の実施の形態に係る鉄筋コンクリート壁用スペーサＳと同様である。
【００３５】
尚、本発明の実施の形態に係る鉄筋コンクリート壁用スペーサＳの突出部３０の形状は紡錘状に形成されているが、これに限定されるものでなく、図１０に示すように、例えば、円柱状（Ａ），直方体（Ｂ），縦断面台形状（Ｃ）に形成し、あるいは、直方体の先端部を円形に面取りしてかまぼこ状に形成する（Ｄ）等、種々形状にして良く、適宜変更して差し支えない。
【００３６】
尚また、本発明の実施の形態に係る鉄筋コンクリート壁用スペーサＳの突出部３０の材質を例えば、モルタルで形成してもよく適宜変更して差し支えない。
【００３７】
【発明の効果】
以上説明したように、本発明の鉄筋コンクリート壁用スペーサによれば、吊下部材を隣り合う横筋間に架け渡される長さの金属板で形成し、突出部をコンクリートで形成したので、構造が単純になり、また、強度が高くなり、型枠から力が作用したり、振動や衝撃があっても、変形しにくくなり、それだけ、かぶりの保持を確実にできる。また、吊下部材の下端が横筋に当接するので、横筋は変形しにくいことから、吊下部材が動きにくくなり、この点でもかぶりの保持を確実にできる。
【００３８】
また、吊下部材を横筋及び縦筋と同種の鋼材で形成した場合には、異種金属間腐食が発生せず、鉄筋の耐久性の向上に寄与できる。
更に、吊下部材の他端に突出部に埋設されて突出部を固着する突起を形成した場合には、確実に吊下部材に突出部を固設できる。
また、突起をボルトで構成し、ボルトの頭を吊下部材の他端に溶接固定した場合には、既存のボルトを利用し、ボルト頭を溶接するだけなので、製造を容易に行なうことができる。また、ボルトには雄ネジが形成されているので、突出部を抜けにくくすることができる。
【００３９】
更にまた、突出部を吊下部材に対して上下方向の位置を調整可能に設けた場合には、突出部の位置を、上下方向に対して調節可能に設けているので、備えられた横筋の間隔に対応させることができ、利便性を向上できる。
【００４０】
また、突出部の裏面側にボルトを突設し、吊下部材に上下方向に沿う長孔を形成し、突出部のボルトを長孔に挿通しボルトにナットをねじ込んで突出部を吊下部材に固定した場合には、突出部の位置調節を容易に行なうことができるだけでなく、容易に吊下部材に固定できる。
【００４１】
更に、突出部の裏面側にナットを埋設し、吊下部材に上下方向に沿う長孔を形成し、長孔に挿通したボルトをナットにねじ込んで突出部を吊下部材に固定した場合には、突出部の位置調節を容易に行なうことができるだけでなく、容易に吊下部材に固定できる。
【図面の簡単な説明】
【図１】本発明の第一の実施の形態に係る鉄筋コンクリート壁用スペーサをその使用状態で示す断面図である。
【図２】本発明の第一の実施の形態に係る鉄筋コンクリート壁用スペーサをその使用状態で示す斜視図である。
【図３】本発明の第一の実施の形態に係る鉄筋コンクリート壁用スペーサの製造例を示す断面図である。
【図４】本発明の第二の実施の形態に係る鉄筋コンクリート壁用スペーサをその使用状態で示す断面図である。
【図５】本発明の第二の実施の形態に係る鉄筋コンクリート壁用スペーサを示す分解斜視図である。
【図６】本発明の第三の実施の形態に係る鉄筋コンクリート壁用スペーサをその使用状態で示す断面図である。
【図７】本発明の第三の実施の形態に係る鉄筋コンクリート壁用スペーサを示す分解斜視図である。
【図８】本発明の第四の実施の形態に係る鉄筋コンクリート壁用スペーサをその使用状態で示す断面図である。
【図９】本発明の第四の実施の形態に係る鉄筋コンクリート壁用スペーサを示す分解斜視図である。
【図１０】本発明の実施の形態に係る鉄筋コンクリート壁用スペーサにおいて突出部の形状の他の例を示す斜視図である。
【図１１】従来の鉄筋コンクリート壁用スペーサをその使用状態で示す斜視図である。
【符号の説明】
Ｓ 鉄筋コンクリート壁用スペーサ
Ｔ 鉄筋組体
Ｔａ 横筋
Ｔｂ 縦筋
Ｋ 型枠
Ｄ かぶり
１０ 係止部
１１ 一端部
１２ 凹部
２０ 吊下部材
２１ 金属板
２２ 表面
２３ 裏面
２５ 長孔
３０ 突出部
３１ 突起
３２ コンクリート
３３ ボルト
３４ ナット
３４ａ ナット[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is provided between a reinforcing bar and a formwork at the time of construction of a reinforced concrete wall, and keeps a constant distance between a reinforcing bar assembly and a formwork, so-called "cover," and improves the durability of the reinforced concrete wall to be constructed. To a reinforced concrete wall spacer that also contributes.
[0002]
[Prior art]
In general, when constructing a reinforced concrete wall, as shown in FIG. 11, formwork K is provided on both sides of a reinforcing bar assembly T in which a horizontal line Ta and a vertical line Tb are assembled in a lattice shape, and Pour concrete and build. In the construction of such a reinforced concrete wall, the formwork K is supported between the reinforced concrete body T and one formwork K, so-called cover D (the reinforced concrete body T and the formwork K (outside of the reinforced concrete wall). ) Is provided by providing a reinforced concrete wall spacer S which keeps the distance) constant.
[0003]
Conventionally, as this type of spacer for reinforced concrete walls, for example, a spacer disclosed in Patent Document 1 (Japanese Patent Laid-Open No. Hei 5-171742) is known.
As shown in FIG. 11, the reinforced concrete wall spacer S is formed by bending a single wire and has a locking portion 2 which is locked at one end to the horizontal line Ta by the locking portion 2. A hanging member 1 to be hung, a projecting portion 3 protruding from the other end of the hanging member 1 and abutting on the formwork K, and provided at a base end of the projecting portion 3 and in front of the reinforcing bar assembly T. And a hook 5 which is locked to a reinforcing wire net 4.
A large number of the reinforced concrete wall spacers S are provided on the reinforcing bar assembly T, and the projecting portion 3 supports the formwork K and holds the cover D.
[0004]
[Patent Document 1]
JP-A-5-171742 [0005]
[Problems to be solved by the invention]
By the way, in the above-mentioned conventional reinforced concrete wall spacer S, since it is formed of a wire, the hanging member 1 and the protruding portion 3 are easily deformed by the compressive force from the formwork K, and the concrete is made of concrete. At the time of pouring, it is easy to be deformed by the impact force caused by the falling impact of concrete, the lifting pressure of concrete rising, the contact impact of a vibrator, and the like, and there is a problem that the function of supporting the formwork K and securing the cover D is inferior. Was.
Furthermore, since the reinforced concrete wall spacer S is locked to the wire mesh 4 having a smaller diameter than the reinforcing bar, the spacer S moves following the deformation of the wire mesh 4, so that the support for the reinforcing bar is unstable. There was also a problem that fog D could not be maintained.
[0006]
In order to solve this problem, it is conceivable that the entire reinforced concrete wall spacer S is formed by bending a metal plate. However, since the bending structure is complicated, manufacturing becomes complicated, and the strength of the protruding portion 3 is increased. Is not always high, and the disadvantage of moving following the deformation of the wire netting 4 is not eliminated, so it cannot be said that this is always a good solution.
Further, since the protruding portion 3 is made of metal and its tip is exposed on the surface of the concrete wall, there is also a problem that the corrosion easily proceeds from here.
[0007]
The present invention has been made in view of the above-described problems, and has been made to simplify the structure, increase the strength of the suspension member and the protruding portion, stabilize the support to the reinforcing bar, and reliably hold the cover. It is another object of the present invention to provide a reinforced concrete wall spacer having improved corrosion resistance.
[0008]
[Means for Solving the Problems]
In order to achieve such an object, the reinforced concrete wall spacer of the present invention is provided with a formwork on both sides of a reinforcing bar assembly in which horizontal and vertical streaks are assembled in a grid pattern, pouring concrete between the formwork to form a reinforced concrete wall. When molding, in the reinforced concrete wall spacer provided between the reinforcing bar assembly and one of the formwork,
A suspending member having an engaging portion at one end, which is engaged with the lateral line, and a suspending member suspended from the lateral line by the engaging portion, and a projecting portion projecting from the other end of the suspending member and abutting on the formwork. Prepare,
The suspension member is formed of a metal plate having a length bridging between adjacent horizontal streaks, and the protrusion is formed of concrete.
[0009]
Thus, the suspension member is made of a metal plate and the protruding portion is made of concrete, so that the rigidity is increased and the strength is increased. Therefore, it is not affected by the compressive force generated between the formwork and the reinforcing bar, or by the impact of concrete flowing down into the formwork, such as the falling impact of concrete, the lifting pressure due to the rising of concrete, and the contact impact by vibrator. On the other hand, it is less likely to be deformed, and it is possible to prevent a situation in which the cover falls off or shifts, and the fog can be reliably held.
[0010]
In addition, the suspension member is formed to have a length in which the metal plate is bridged between the adjacent horizontal streaks, and the protruding portion is fixed to the end portion thereof. To support. For this reason, compared to supporting with a conventional wire mesh, this reinforcing bar has a large diameter and high rigidity, so the spacer for the main wall is securely supported, and it is difficult to move against the above pressing force and impact. In this respect, the fogging can be reliably maintained.
[0011]
Further, since the protruding portion is formed of concrete, the metal is not exposed on the outer wall of the concrete, so that the corrosion resistance is improved.
Furthermore, the structure of the wall spacer is simple because the concrete is simply attached to the metal plate.
[0012]
Further, if necessary, the suspension member is formed of the same type of steel material as the horizontal and vertical stripes. Corrosion between dissimilar metals does not occur between the reinforcing bar and the spacer for the reinforced concrete wall, which can contribute to the improvement of the durability of the reinforcing bar and the spacer for the main wall.
[0013]
Further, if necessary, a projection is formed at the other end of the suspension member so as to be embedded in the projecting portion and fix the projecting portion. The projection can be securely fixed to the suspension member.
Furthermore, if necessary, the projection is formed of a bolt, and the head of the bolt is fixedly welded to the other end of the suspension member. Since the existing bolts are used and the bolt heads are simply welded, the production is easy. In addition, since the male screw is formed on the bolt, it is difficult for the protrusion to come off.
[0014]
In addition, if necessary, the projecting portion is provided so that the position in the vertical direction with respect to the hanging member can be adjusted. Since the position of the protruding portion can be adjusted in the vertical direction in accordance with the interval between the horizontal streaks, it can be adapted to various types of reinforcing bars, and the versatility is increased and the convenience is improved.
[0015]
Further, if necessary, a bolt is protrudingly provided on the back surface side of the protruding portion, a long hole is formed in the hanging member along the vertical direction, and the bolt of the protruding portion is inserted into the long hole, and a nut is inserted into the bolt. Is screwed to fix the protrusion to the suspension member.
The protruding part is fixed to the hanging member by screwing the nut to the bolt, so when fixing it, the nut only has to be tightened, and not only can the position of the protruding part be easily adjusted, but also it can be easily fixed to the hanging member. it can.
[0016]
Also, if necessary, a nut is buried on the back side of the protrusion, a long hole is formed in the suspension member along the vertical direction, and a bolt inserted into the long hole is screwed into the nut to form the protrusion. It is fixed to the suspension member.
The protruding part is screwed into the nut, and the protruding part is fixed to the suspension member. When fixing the protruding part, it is sufficient to screw in the bolt. Can be fixed to the lower member.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a reinforced concrete wall spacer according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
1 and 2 show a reinforced concrete wall spacer S according to a first embodiment of the present invention. The basic configuration of the reinforced concrete wall spacer S is as follows: a suspending member 20 having an engaging portion 10 at one end thereof which is engaged with the horizontal streak Ta; And a projecting portion 30 projecting from the other end of the projection 20 and abutting against the formwork K.
[0018]
More specifically, the suspension member 20 is formed of a rectangular metal plate 21 made of the same type of steel as the horizontal streak Ta and the vertical streak Tb, and having a length spanned between adjacent horizontal streaks Ta.
The locking portion 10 is integrally bent with one end 11 of the metal plate 21 facing downward, and forms a concave portion 12 into which the horizontal streak Ta is fitted. One end 11a of the locking portion 10 is bent in a direction away from the back surface 23 of the suspension member 20 to facilitate suspension.
[0019]
The protruding portion 30 is formed into a spindle shape by concrete 32, and has a height equal to the length of the cover D to be held. At the other end of the suspension member 20, a projection 31 buried in the projection 30 and fixing the projection 30 is formed.
[0020]
The projection 31 is formed by a bolt 33, and is fixed to the surface 22 of the suspension member 20 by welding so that the head of the bolt 33 contacts a horizontal line Ta of the suspension member 20.
Since the projection 31 is formed by being embedded in the projection 30, the projection 30 can be securely fixed to the suspension member 20, and the projection 31 is constituted by a bolt 33, and the head of the bolt 33 is attached to the suspension member 20. Is easily fixed to the other end of the device by welding. Further, since the bolt 33 is formed with a male screw, the protruding portion 30 does not easily come off.
[0021]
When manufacturing the reinforced concrete wall spacer S according to this embodiment, for example, one end of the suspension member 20 (metal plate 21) is bent to form the locking portion 10, and a bolt 33 is welded to the other end. Fix it.
Then, as shown in FIG. 3, for example, a concave mold 40 having the same shape as the protruding part 30 is used, and the concave mold 40 is filled with concrete 32, and the bolt 33 is positioned in the center of the upper surface of the mold and inserted into the mold. After that, the concrete 32 is cured for a certain period of time, and then removed from the mold to produce the concrete. The wall spacer S manufactured in this manner has a simple structure because only the concrete of the protrusion 30 is attached to the metal plate 21.
[0022]
Therefore, when the reinforced concrete wall spacer S according to this embodiment is used, as shown in FIGS. 1 and 2, the formwork is provided on both sides of the reinforcing bar assembly T in which the horizontal bars Ta and the vertical bars Tb are assembled in a grid. K is provided, and the reinforced concrete wall spacer S is suspended from the reinforcing bar assembly T with the locking portion 10 hooked on the horizontal bar Ta. At this time, a large number of the reinforced concrete wall spacers S are provided in the reinforcing bar assembly T at appropriate intervals. Then, the concrete is started to be filled between the molds K, and vibration is applied by a vibrator as appropriate so that no void is formed in the concrete to be filled.
Then, the concrete is cured for a required time, the formwork K is removed, and a reinforced concrete wall is constructed.
[0023]
In this case, the reinforced concrete wall spacer S has high rigidity and high strength because the suspension member 20 is formed of a metal plate and the protruding portion 30 is formed of concrete. For this reason, against the compressive force generated between the formwork K and the reinforcing bar assembly T, or when the concrete is filled into the formwork K, the falling impact of the concrete, the lift due to the rising of the concrete, the contact by the vibrator. It becomes difficult to be deformed by an impact such as an impact, and it is possible to prevent a situation of falling off or shifting, and to reliably hold the fog D.
[0024]
Further, the suspension member 20 is formed to have a length spanned between the adjacent horizontal streaks Ta, and the protruding portion 30 is fixedly provided at the end thereof. Support the protrusion 30. As a result, the reinforcing bar has a large diameter and a high rigidity as compared with the case where the reinforcing bar is supported by a conventional wire mesh, so that the wall spacer S is securely supported, and does not easily move against the above pressing force or impact. Also in this respect, the fog D can be surely held.
[0025]
Furthermore, since the protrusion 30 is formed of concrete, the metal is not exposed on the outer wall of the concrete, so that the corrosion resistance is improved.
Furthermore, since the metal plate 21 is formed of the same type of steel material as the horizontal and vertical bars Ta and Tb, corrosion between different metals does not occur between the reinforcing bar and the spacer S for the reinforced concrete wall, and the durability of the reinforcing bar is improved. Can contribute.
[0026]
4 and 5 show a reinforced concrete wall spacer S according to a second embodiment of the present invention.
The reinforced concrete wall spacer S includes the locking portion 10, the suspension member 20, and the protruding portion 30, as described above. Then, a long hole 25 of a predetermined size is formed in the hanging member 20 along the vertical direction of the hanging member 20, and a bolt 33 protruding from the rear surface side of the protruding portion 30 is inserted into the long hole 25, The protrusion 34 is fixed to the suspension member 20 by screwing a nut 34 into the bolt.
Except for this, it is the same as the reinforced concrete wall spacer S according to the first embodiment.
[0027]
When manufacturing the reinforced concrete wall spacer S according to this embodiment, the locking portion 10 is formed at one end of the suspension member 20 (metal plate 21), and the width is such that the bolt 33 can be inserted along the vertical direction. And a long hole 25 having a certain length is formed.
On the other hand, the protruding portion 30 in which the bolt 33 is embedded is molded.
[0028]
Therefore, when using the reinforced concrete wall spacer S according to this embodiment, the bolt 33 is inserted from the front surface 22 of the suspension member 20 into the elongated hole 25, and the nut 34 is screwed from the back surface 23 of the suspension member 20. It is fixed to the suspension member 20. In this case, when the locking portion 10 is hooked on the horizontal streak Ta, the position of the bolt 33 is moved in accordance with the interval of the horizontal streak Ta so that the protrusion 30 is positioned on the front of the horizontal streak Ta, and the nut 34 is screwed into the protrusion. 30 is fixed to the suspension member 20. In this way, the spacer S for the reinforced concrete wall is hung by hanging the locking portion 10 on the horizontal streak Ta.
[0029]
Thereby, in addition to the operation and effect of the reinforced concrete wall spacer S according to the first embodiment, the position of the protrusion 30 can be adjusted in the vertical direction within the range of the elongated hole 25 of the suspension member 20. , It is possible to correspond to the interval between the horizontal streaks Ta, and the convenience can be improved.
In addition, since the protrusion 30 is fixed to the suspension member 20 by screwing the nut 34 to the bolt 33, the nut 34 may be tightened when fixing, and the position of the protrusion 30 can be easily adjusted. Performance is improved.
[0030]
FIGS. 6 and 7 show a reinforced concrete wall spacer S according to a third embodiment of the present invention.
The reinforced concrete wall spacer S includes a locking portion 10, a suspension member 20, and a protruding portion 30. Then, a long hole 25 of a predetermined size is formed in the hanging member 20 along the vertical direction of the hanging member 20, and a nut 34 buried in the long hole 25 on the back surface side of the protruding portion 30 is attached to the hanging member 20. The projecting portion 30 is fixed to the suspension member 20 by screwing a bolt 33 inserted from the back surface 23 of the member 20.
Except for this, it is the same as the reinforced concrete wall spacer S according to the first embodiment.
[0031]
When manufacturing the reinforced concrete wall spacer S according to this embodiment, the locking portion 10 is formed at one end of the suspension member 20 (metal plate 21), and the width is such that the bolt 33 can be inserted along the vertical direction. And a long hole 25 having a certain length is formed.
On the other hand, the protrusion 30 in which the nut 34 is embedded is formed by molding.
[0032]
Therefore, when using the reinforced concrete wall spacer S according to this embodiment, the bolt 33 is inserted from the back surface 23 of the suspension member 20 into the elongated hole 25 and screwed into the nut 34 to fix the protrusion 30. In this case, when the locking portion 10 is hooked on the horizontal streak Ta, the position of the bolt 33 is moved according to the interval of the horizontal streak Ta so that the protrusion 30 is positioned on the front of the horizontal streak Ta. 30 is fixed to the suspension member 20. In this way, the spacer S for the reinforced concrete wall is hung by hanging the locking portion 10 on the horizontal streak Ta.
[0033]
Thereby, in addition to the operation and effect of the reinforced concrete wall spacer S according to the first embodiment, the position of the protrusion 30 can be adjusted in the vertical direction within the range of the elongated hole 25 of the suspension member 20. , It is possible to correspond to the interval between the horizontal streaks Ta, and the convenience can be improved.
Further, since the projecting portion 30 is screwed into the nut 34 with the bolt 33 and the projecting portion 30 is fixed to the suspension member 20, the bolt 33 may be screwed in at the time of fixing, and the position of the projecting portion 30 is easily adjusted. Operability can be improved.
[0034]
8 and 9 show a reinforced concrete wall spacer S according to a fourth embodiment of the present invention.
This reinforced concrete wall spacer S includes a suspension member 20 provided with a locking portion 10 and a long hole 25, and a protruding portion 30, as in the second embodiment. The difference from the second embodiment is that the male screw portion of the bolt 33 is formed to be long, and the nut 34a is screwed between the back surface 30a of the protrusion 30 and the front surface 22 of the suspension member 20. The projecting portion 30 is fixed by holding the suspension member 20 between the nut 34a and the nut 34a, and the projecting dimension of the projecting portion 30 is made variable by adjusting the positions of the nut 34 and the nut 34a with respect to the bolt 33. Therefore, the protrusion size of the protruding portion 30 can be adjusted in accordance with the size of the fog D, so that various types of fog D can be handled, and versatility can be increased. Other operations and effects are the same as those of the reinforced concrete wall spacer S according to the second embodiment.
[0035]
In addition, the shape of the protrusion 30 of the reinforced concrete wall spacer S according to the embodiment of the present invention is formed in a spindle shape, but is not limited to this. For example, as shown in FIG. It may be formed into various shapes such as a columnar shape (A), a rectangular parallelepiped (B), a trapezoidal longitudinal cross section (C), or a circular chamfered tip of a rectangular parallelepiped (D). You can change it.
[0036]
In addition, the material of the protruding portion 30 of the reinforced concrete wall spacer S according to the embodiment of the present invention may be formed of, for example, mortar, and may be appropriately changed.
[0037]
【The invention's effect】
As described above, according to the reinforced concrete wall spacer of the present invention, the suspension member is formed of a metal plate having a length spanned between adjacent horizontal bars, and the protruding portion is formed of concrete. In addition, the strength is increased, and even if a force is applied from the formwork, or there is a vibration or an impact, the shape is hardly deformed, and the fog can be surely held. In addition, since the lower end of the suspension member abuts on the horizontal streak, the horizontal streak is less likely to be deformed, so that the suspension member is less likely to move, and the fogging can be reliably maintained at this point.
[0038]
Further, when the suspension member is formed of the same type of steel material as the horizontal and vertical bars, corrosion between dissimilar metals does not occur, which can contribute to improvement in durability of the reinforcing bar.
Furthermore, in the case where a projection is embedded at the other end of the suspension member and is fixed to the projection, the projection can be securely fixed to the suspension member.
Further, when the projection is formed by a bolt and the head of the bolt is fixed to the other end of the suspension member by welding, the existing bolt is used and the bolt head is simply welded, so that the manufacturing can be easily performed. . In addition, since the male screw is formed on the bolt, it is possible to prevent the protrusion from coming off easily.
[0039]
Furthermore, when the projecting portion is provided so that the position in the vertical direction with respect to the suspension member is adjustable, the position of the projecting portion is provided so as to be adjustable in the vertical direction. It is possible to correspond to the interval, and convenience can be improved.
[0040]
Also, a bolt is protrudingly provided on the back side of the projecting portion, a long hole is formed in the hanging member along the vertical direction, the bolt of the projecting portion is inserted into the long hole, and a nut is screwed into the bolt to attach the projecting portion to the hanging member. When fixed to the hanging member, not only can the position of the protruding portion be easily adjusted, but also it can be easily fixed to the suspension member.
[0041]
Furthermore, when a nut is buried on the back side of the protrusion, a long hole is formed in the suspension member along the vertical direction, and a bolt inserted into the long hole is screwed into the nut to fix the protrusion to the suspension member. In addition to being able to easily adjust the position of the protrusion, the protrusion can be easily fixed to the suspension member.
[Brief description of the drawings]
FIG. 1 is a sectional view showing a reinforced concrete wall spacer according to a first embodiment of the present invention in a used state.
FIG. 2 is a perspective view showing a reinforced concrete wall spacer according to the first embodiment of the present invention in a used state.
FIG. 3 is a cross-sectional view showing a production example of the reinforced concrete wall spacer according to the first embodiment of the present invention.
FIG. 4 is a cross-sectional view showing a reinforced concrete wall spacer according to a second embodiment of the present invention in a used state.
FIG. 5 is an exploded perspective view showing a reinforced concrete wall spacer according to a second embodiment of the present invention.
FIG. 6 is a sectional view showing a reinforced concrete wall spacer according to a third embodiment of the present invention in a used state.
FIG. 7 is an exploded perspective view showing a reinforced concrete wall spacer according to a third embodiment of the present invention.
FIG. 8 is a sectional view showing a reinforced concrete wall spacer according to a fourth embodiment of the present invention in a used state.
FIG. 9 is an exploded perspective view showing a reinforced concrete wall spacer according to a fourth embodiment of the present invention.
FIG. 10 is a perspective view showing another example of the shape of the protrusion in the reinforced concrete wall spacer according to the embodiment of the present invention.
FIG. 11 is a perspective view showing a conventional reinforced concrete wall spacer in a used state.
[Explanation of symbols]
S Reinforced concrete wall spacer T Reinforcing bar assembly Ta Horizontal bar Tb Vertical bar K Formwork D Cover 10 Locking portion 11 One end 12 Recess 20 Hanging member 21 Metal plate 22 Surface 23 Back surface 25 Slot 30 Projection 31 Projection 32 Concrete 33 Bolt 34 Nut 34a Nut

Claims (7)

横筋及び縦筋を格子状に組んだ鉄筋組体の両側に型枠を設け該型枠間にコンクリートを流し込んで鉄筋コンクリート壁を成形する際、上記鉄筋組体と一方の型枠との間に設けられる鉄筋コンクリート壁用スペーサにおいて、
一端に横筋に係止される係止部を有し該係止部により横筋に吊下される吊下部材と、該吊下部材の他端に突設され型枠に当接する突出部とを備え、
上記吊下部材を隣り合う横筋間に架け渡される長さの金属板で形成し、上記突出部をコンクリートで形成したことを特徴とする鉄筋コンクリート壁用スペーサ。When forming a reinforced concrete wall by providing a formwork on both sides of a reinforcing bar assembly in which the horizontal and vertical bars are assembled in a lattice shape, forming a reinforced concrete wall by pouring concrete between the forming frames, providing between the reinforcing bar assembly and one of the formwork. Reinforced concrete wall spacers,
A suspending member having an engaging portion at one end, which is engaged with the lateral line, and a suspending member suspended from the lateral line by the engaging portion, and a projecting portion projecting from the other end of the suspending member and abutting on the formwork. Prepare,
A spacer for a reinforced concrete wall, wherein the hanging member is formed of a metal plate having a length bridging between adjacent horizontal streaks, and the protrusion is formed of concrete. 上記吊下部材を横筋及び縦筋と同種の鋼材で形成したことを特徴とする請求項１記載の鉄筋コンクリート壁用スペーサ。2. The spacer for a reinforced concrete wall according to claim 1, wherein the suspension member is formed of the same steel material as the horizontal and vertical bars. 上記吊下部材の他端に上記突出部に埋設されて該突出部を固着する突起を形成したことを特徴とする請求項１または２記載の鉄筋コンクリート壁用スペーサ。3. The spacer for a reinforced concrete wall according to claim 1, wherein a protrusion is embedded at the other end of the hanging member and is fixed to the protrusion. 上記突起をボルトで構成し、該ボルトの頭を上記吊下部材の他端に溶接固定したことを特徴とする請求項３記載の鉄筋コンクリート壁用スペーサ。4. The spacer for a reinforced concrete wall according to claim 3, wherein the projection is formed by a bolt, and a head of the bolt is fixed to the other end of the suspension member by welding. 上記突出部を上記吊下部材に対して上下方向の位置を調整可能に設けたことを特徴とする請求項１または２記載の鉄筋コンクリート壁用スペーサ。The spacer for a reinforced concrete wall according to claim 1 or 2, wherein the projecting portion is provided so as to be adjustable in a vertical position with respect to the hanging member. 上記突出部の裏面側にボルトを突設し、上記吊下部材に上下方向に沿う長孔を形成し、
上記突出部のボルトを上記長孔に挿通し該ボルトにナットをねじ込んで該突出部を吊下部材に固定することを特徴とする請求項５記載の鉄筋コンクリート壁用スペーサ。Protruding bolts on the back side of the protruding part, forming a long hole along the vertical direction in the hanging member,
6. The reinforced concrete wall spacer according to claim 5, wherein a bolt of the projecting portion is inserted into the elongated hole, and a nut is screwed into the bolt to fix the projecting portion to the suspension member. 上記突出部の裏面側にナットを埋設し、上記吊下部材に上下方向に沿う長孔を形成し、
上記長孔に挿通したボルトを上記ナットにねじ込んで該突出部を吊下部材に固定することを特徴とする請求項５記載の鉄筋コンクリート壁用スペーサ。A nut is buried on the back side of the protruding part, and a long hole is formed in the hanging member along the vertical direction,
6. The reinforced concrete wall spacer according to claim 5, wherein a bolt inserted into the elongated hole is screwed into the nut to fix the protrusion to the suspension member.
JP2003015967A 2003-01-24 2003-01-24 Reinforced concrete wall spacer Expired - Fee Related JP3770877B2 (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006095076A (en) * 2004-09-29 2006-04-13 Kubota Matsushitadenko Exterior Works Ltd Ventilation structure of roof
JP2007029026A (en) * 2005-07-28 2007-02-08 Kubota Corp Combine harvester
KR100713186B1 (en) 2006-04-10 2007-05-02 이형민 Steel bar spacer for concrete wall structure
CN109162408A (en) * 2018-10-11 2019-01-08 中国建筑第八工程局有限公司 Steel bar template preventing offsetting device and preventing offsetting method
JP2020002556A (en) * 2018-06-26 2020-01-09 岡部株式会社 Support for floating form
JP2021095689A (en) * 2019-12-13 2021-06-24 株式会社日新 Special roller spacer
CN113202208A (en) * 2021-04-30 2021-08-03 福州大学 Assembled steel-concrete combined shear wall and construction method thereof
CN114197690A (en) * 2021-12-28 2022-03-18 河南盛都环保科技集团有限公司 Reinforced concrete passive heat-insulating wall with fixing piece

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006095076A (en) * 2004-09-29 2006-04-13 Kubota Matsushitadenko Exterior Works Ltd Ventilation structure of roof
JP4551173B2 (en) * 2004-09-29 2010-09-22 クボタ松下電工外装株式会社 Roof ventilation structure
JP2007029026A (en) * 2005-07-28 2007-02-08 Kubota Corp Combine harvester
KR100713186B1 (en) 2006-04-10 2007-05-02 이형민 Steel bar spacer for concrete wall structure
JP2020002556A (en) * 2018-06-26 2020-01-09 岡部株式会社 Support for floating form
JP7044648B2 (en) 2018-06-26 2022-03-30 岡部株式会社 Floating formwork support
CN109162408A (en) * 2018-10-11 2019-01-08 中国建筑第八工程局有限公司 Steel bar template preventing offsetting device and preventing offsetting method
JP2021095689A (en) * 2019-12-13 2021-06-24 株式会社日新 Special roller spacer
CN113202208A (en) * 2021-04-30 2021-08-03 福州大学 Assembled steel-concrete combined shear wall and construction method thereof
CN113202208B (en) * 2021-04-30 2022-11-15 福州大学 Assembled steel-concrete combined shear wall and construction method thereof
CN114197690A (en) * 2021-12-28 2022-03-18 河南盛都环保科技集团有限公司 Reinforced concrete passive heat-insulating wall with fixing piece
CN114197690B (en) * 2021-12-28 2023-09-26 河南盛都环保科技集团有限公司 Reinforced concrete passive heat-preserving wall with fixing piece

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