JP3550002B2 - Remaining formwork - Google Patents
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- JP3550002B2 JP3550002B2 JP23766797A JP23766797A JP3550002B2 JP 3550002 B2 JP3550002 B2 JP 3550002B2 JP 23766797 A JP23766797 A JP 23766797A JP 23766797 A JP23766797 A JP 23766797A JP 3550002 B2 JP3550002 B2 JP 3550002B2
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- 238000009415 formwork Methods 0.000 title claims description 25
- 238000004381 surface treatment Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 8
- 238000004070 electrodeposition Methods 0.000 description 8
- 125000002091 cationic group Chemical group 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
Images
Landscapes
- Bridges Or Land Bridges (AREA)
- Retaining Walls (AREA)
Description
【０００１】
【発明の属する技術分野】
本発明はコンクリ−ト製の擁壁，砂防ダム，橋脚等を施工する際に、そのものが表型枠としてコンクリ−トの打設後に、コンクリ−トの表面に壁板として残存するタイプの残存型枠に関する。
【０００２】
【従来の技術】
従来、コンクリ−ト製の擁壁，砂防ダム，橋脚等の構造物を施工する際に、施工の容易さ，表面仕上の美しさ，環境との調和などから、構造物の表面に取付ける壁材として、残存型枠が使用される。この残存型枠部材としては、一般に天然石風の外観を呈するレジンコンクリ−トや特殊シリカセメント製のプレ−トが多く用いられている。この型枠部材の裏面側には、一定距離隔てて対向する相対部材との間を保持するための固定具と接続できるように、ジベル，金網，溝形材等が取付けられていた。前記型枠部材の裏面に取付けられたジベル，金網の場合は型枠施工の際に型枠部材の固定が不安定であり、型枠部材の平行の確保が難しく、設置面が波を打ったり、或いは打設したコンクリ−トとの結合強度が弱く、部分的に型枠部材の割れや剥がれを生じ易い問題点があった。
【０００３】
又、前記型枠部材の裏面に取付けられた溝形材の場合は、溝形材が型枠部材の裏面と面一に埋設されているため、溝形材の内部は袋状となり、打設した際に、コンクリ−トが充分に溝形材の内部に流れ込みにくくなり、剥がれ易かった。従って、溝形材を使用する場合、特に溝形材が型枠部材と打設コンクリ−トとの強固な結合性、或いは型枠施工する際の固定具との容易な接続性が要求され、溝形材の形状や方向性が問題となっていた。
【０００４】
このため、打設するコンクリ−トに対して型枠部材が強固に結合し、施工後に剥がれ落ちることがなく、且つ型枠施工が容易で強固に出来る残存型枠として、本発明者が特願平９−２６０８３号，特願平９−２６０８４号に於いて提案したところである。この構造は図５，図６に示すようにコンクリ−ト系でプレ−ト状の型枠部材（１）内部に網状体（２）を埋設し、前記型枠部材（１）の裏面へ四角状に枠組した溝形材（３）を前記網状体（２）に固着させ、且つ前記型枠部材（１）の表面には化粧部（１ａ）が設けられると共に側面全周にはシ−ル用の溝（１ｂ）が形成された残存型枠である。又、この時、溝形材（３）の開口部（３ａ）の向きは、図５のものは内側に、図６のものは外側に向けられている。
【０００５】
【発明が解決しようとする課題】
しかしながら、前記型枠部材（１）を順次並べる表面側の型枠と、裏面側の相対部材（６）とを所定距離隔てて対向させ、その間を種々の固定具（５）を用いて、型枠部材（１）を段積して型枠施工する際、図７に示すような場合には、内部に入って、溝形材（３）の開口部（３ａ）と固定具（５）のジョイントプレ−ト等とを固定する固定ネジ（５ａ）を締付けていたが、コンクリ−ト製の擁壁などの厚さが薄くなると、型枠部材（１）の上方から手を入れて行う際、型枠部材（１）下部側の固定具（５）の固定ネジ（５ａ）を締付ける作業が極めて難しくなるため、作業性が非常に悪くなると共に熟練技術を要する等の問題点があった。
【０００６】
本発明は型枠施工が簡単であり且つコンクリ−ト製の擁壁などの厚さが薄い場合でも型枠全体の固定が極めて容易となる残存型枠を提供することを目的とする。
【０００７】
【課題を解決するための手段】
上記問題点を解決するために本発明は成されたものであり、つまり、コンクリ−ト系でプレ−ト状の型枠部材内部に網状体を埋設し、前記型枠部材の裏面へ四角状に枠組した溝形材を前記網状体に固着させて設けた残存型枠において、前記溝形材は断面コの字状の軽溝形鋼であり、その対称となる断面の一方を前記型枠部材内部に埋設し、他方を前記型枠部材の裏面から露出させると共に全周に穴を多数穿設させ、且つ、四角状に枠組した上下に位置する前記溝形材の開口部を下方に向けた構造と成す。尚、前記型枠部材の裏面より前記溝形材の断面の略半分を露出させると良く、又、前記型枠部材の表面側に化粧仕上が施されて化粧部を有したものとしても良く、更に前記網状体及び前記溝形材に表面処理を施しても良い。
【０００８】
【発明の実施の形態】
図１は本発明の実施形態を示す図であり、これに基づいて説明する。（１）は一定の厚さと面積でコンクリ−ト硬化させたプレ−ト状の型枠部材であり、前記コンクリ−トとしては単にレジンコンクリ−トや特殊シリカセメントだけを多く使用するが、硬化したコンクリ−トに低粘度のビニル系モノマ−を含浸，重合させたり、コンクリ−トに金属短繊維を混入し硬化させ、その中に低粘度のビニル系ポリマ−を含浸，重合して型枠部材（１）の耐久性及び機械的強度を著しく向上させたものを用いても良い。又、型枠部材（１）の表面は見栄えを良くするために、通常は化粧仕上を施して化粧部（１ａ）が形成されるが、使用場所によっては化粧仕上しない場合もある。更に型枠部材（１）の側面全周には、シ−ル用の溝（１ｂ）を形成させている。この溝（１ｂ）は型枠部材（１）をコンクリ−トの型枠として段積する際、打設するコンクリ−トが型枠部材（１）の重ね部分からの漏れ出し防止を行うために、合わさった溝（１ｂ）にコ−キング剤を注入してシ−ルするものである。従って、この溝（１ｂ）を設けたことにより、コ−キング剤が確実に入り完全にシ−ルでき（図３，図４参照）、コンクリ−トが型枠の型枠部材（１）から流れ出ることがなく、又、型枠部材（１）の表面が打設するコンクリ−トで汚れる心配もない。
【０００９】
（２）は型枠部材（１）の内部に全部が埋設された網状体であり、該網状体（２）は型枠部材（１）を補強するためのものである。また前記網状体（２）には表面処理した金網，抜穴金網板が用いられ、特にエキスパンドメタルが、特有な網目形状からして強度的、型枠部材（１）との結合性及び安価の面で使用するのが好ましい。又、網状体（２）の表面処理としてはメッキ処理，塗装処理等を施す。この時、ダブルコ−トカチオン電着塗装を施すと、防錆効果が極めて高く特に好ましいものとなる。尚、このダブルコ−トカチオン電着塗装とは、従来のカチオン電着塗装を２回行う塗装方法であり、これは従来１回のカチオン電着塗装では塗装される物の塗面の平滑性を求めるとエッジ部の塗装がされず、この耐エッジ部の防食性と塗面平滑性を解消するための塗装方法である。即ち、第１回の電着では耐エッジ防食性だけの機能を持たせ、それによって生じる塗面平滑性の低下は第２回の電着によってカバ−しようとするものである。このダブルコ−トカチオン電着塗装では、網状体（２）がエキスパンドメタルである場合に、そのエッジ部が特に多いため、そのエッジ部の塗装を良く行える極めて有効な防錆処理であり、耐久性を高める。
【００１０】
（３）は断面コの字状の軽溝形鋼を用い、４本を四角状に配列し溶接で枠組すると共にその対称となる断面の一方が網状体（２）と溶接で固着した溝形材であり（図２参照）、該溝形材（３）の断面の他方は型枠部材（１）の裏面から露出し、且つ四角状に枠組した上下に位置する前記溝形材（３）の開口部（３ａ）を下方に向けて枠組している（図１参照）。また前記溝形材（３）の全周には空気抜き用及び結合強化用の穴（３ｂ）が図２に示すように多数穿設されている。該穴（３ｂ）は型枠部材（１）に半分埋設された状態が良好であり、この時には、型枠部材（１）自体のコンクリ−トとの結合性も良くなる。前記露出する溝形材（３）の開口部（３ａ）の露出の程度としては、断面の略半分程度が良好であり、打設するコンクリ−トとの結合性も良くなる。この時、露出の程度が少なくなると後述する段積用連結具（４）の掛着部材（４２）を溝形材（３）の開口部（３ａ）に挿入出来なくなると共に型枠施工する際に、段積用連結具（４）やジョイントプレ−ト，引張支持棒等の固定具（５）との接続もしにくくなる。一方、露出の程度が多くなると型枠部材（１）との結合性が悪くなり、強度的に問題を生じる。又、前記溝形材（３）には網状体（２）と同様な表面処理を施すが、この場合もダブルコ−トカチオン電着塗装を施せば、防錆効果が高く好ましいものとなる。尚、本発明の残存型枠は本発明者が提案した特願平９−２６０８３号，特願平９−２６０８４号の物と略同一のものを用いれば良いが、前記溝形材（３）の開口部（３ａ）の向きは、上下に位置する溝形材（３）の開口部（３ａ）が下方に向けられて枠組されており、この点だけが異なる。
【００１１】
図４は本実施形態の段積用連結具が使用される状態を示した図である。これについて説明すると、段積用連結具（４）には、型枠部材（１）の裏側に配置する連結杆（４１）と、該連結杆（４１）から突設し且つ上下位置の溝形材（３）の開口部（３ａ）を掛着する掛着部材（４２）と、その掛着部材（４２）に螺合すると共にその先端が連結杆（４１）に当接する締付ネジ（４３）とがある。尚、前記締付ネジ（４３）は図中のように、上方位置の溝形材（３）の開口部（３ａ）側に通常は設けるが、下方位置の溝形材（３）の開口部（３ａ）側に設けても良い。
【００１２】
次に本発明の使用方法について説明する。予め相対部材（６）との間が所定距離隔てて対向するように、型枠部材（１）側に段積用連結具（４）を設置すると共に種々の固定具（５）を用いて、段積用連結具（４）を固定する。そして型枠部材（１）の裏面に露出した溝形材（３）の下向き開口部（３ａ）を、掛着部材（４２）に掛着すると共に上方位置の溝形材（３）に対応する締付ネジ（４３）を型枠部材（１）の上方から締付けることにより、型枠部材（１）が段積用連結具（４）に固定されるのである。この時、型枠部材（１）の上部だけが締付ネジ（４３）で固定されるが、型枠部材（１）の下部は開口部（３ａ）が掛着部材（４２）に掛着されているので、打設コンクリ−トの押圧力では外れないものとなるのである。また締付ネジ（４３）が締付けられて行くと、掛着部材（４２）が締付ネジ（４３）で引寄せられて掛着部材（４２）が開口部（３ａ）に密着して固定されるのである（図４参照）。次の型枠部材（１）を掛着部材（４２）に掛着すると共に上方位置の溝形材（３）に対応する締付ネジ（４３）を締付け、上記要領で順次型枠部材（１）を段積用連結具（４）に固定させることにより、型枠施工が完了するのである。
【００１３】
【発明の効果】
本発明はこのように構成させたことにより、下記に記載する効果を有する。
【００１４】
請求項１のように型枠部材（１）内部に網状体（２）を埋設し、前記型枠部材（１）の裏面へ四角状に枠組した溝形材（３）を網状体（２）に固着させて設けた残存型枠において、前記溝形材（３）は断面コの字状の軽溝形鋼であり、その対称となる断面の一方を前記型枠部材（１）内部に埋設し、他方を前記型枠部材（１）の裏面から露出させ、且つ、四角状に枠組した上下に位置する前記溝形材（３）の開口部（３ａ）を下方に向けたことにより、型枠部材（１）を上方から、予め固定した段積用連結具（４）へ差込むだけで、溝形材（３）がワンタッチで装着可能となり、更に締付作業としては、少なくとも型枠部材（１）の上部に手が容易に届く位置の段積用連結具（４）の締付ネジ（４３）を回して締付けるだけの簡単な作業で、型枠部材（１）同志が固定できるため、作業性が非常に良くなる。特にコンクリ−ト製の擁壁などの厚さが薄い場合でも型枠部材（１）の締付作業が極めて容易に行え、型枠全体の固定が可能で、且つ作業性が向上すると共に熟練技術が不要となる。
【００１５】
請求項２のように溝形材（３）を、型枠部材（１）の裏面より断面の略半分が露出することにより、打設するコンクリ−トとの結合性が良くなって強度的に良好なものとなる。また段積用連結具（４）の掛着部材（４２）に溝形材（３）の開口部（３ａ）が挿入し易くなると共に型枠施工する際に段積用連結具（４）や固定具（５）との接続も簡単で型枠部材（１）の固定も容易となる。
【００１６】
請求項３に示すように型枠部材（１）の表面側に化粧仕上を施して化粧部（１ａ）を有することにより、型枠の表面が見栄え良くなり、型枠施工後の表面仕上が不要となる。又、施工期間の短縮も可能となる。
【００１７】
請求項４に示すように網状体（２）と溝形材（３）に、表面処理を施すことにより、長期間に渡り防錆効果が発揮されて耐久性を高めるものとなる。
【００１８】
請求項５のように溝形材（３）の全周に穴（３ｂ）を多数穿設させることにより、打設されるコンクリ−トの空気抜きの役目を果たすと共にそのコンクリ−トとの結合強化の役目も果たす。
【図面の簡単な説明】
【図１】本発明の実施形態の要部構造を示す断面図である。
【図２】本実施形態の網状体と溝形材を示す斜視図である。
【図３】本発明品を使用して段積させた状態を示す説明図である。
【図４】本実施形態の段積用連結具の要部構造を示す説明図である。
【図５】従来品の要部構造を示す断面図である。
【図６】従来品の要部構造を示す断面図である。
【図７】従来品の残存型枠を使用して段積させた状態を示す説明図である。
【符号の説明】
１ 型枠部材
１ａ 化粧部
２ 網状体
３ 溝形材
３ａ 開口部
３ｂ 穴[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a construction of a type in which a concrete retaining wall, a sabo dam, a bridge pier, or the like is left as a wall plate on the surface of the concrete after the concrete is cast as a surface form when the concrete is constructed. For formwork.
[0002]
[Prior art]
Conventionally, when constructing structures such as concrete retaining walls, sabo dams, piers, etc., wall materials to be attached to the surface of the structure due to ease of construction, beautiful surface finish, and harmony with the environment. , The remaining formwork is used. As the remaining form member, resin concrete or a plate made of special silica cement, which generally has a natural stone appearance, is often used. On the back side of this form member, a dowel, a wire mesh, a channel member and the like are attached so as to be connectable to a fixture for holding a space between the form member and a counter member opposed at a predetermined distance. In the case of a dowel or a wire net attached to the back of the form member, the fixing of the form member is unstable during the construction of the form member, and it is difficult to secure the parallel form of the form member. Alternatively, there is a problem that the bonding strength with the cast concrete is weak, and the mold member is likely to be partially cracked or peeled.
[0003]
Further, in the case of the channel member attached to the back surface of the form member, since the channel member is buried flush with the back surface of the form member, the inside of the channel member becomes a bag-like shape and is cast. When this was done, it was difficult for the concrete to sufficiently flow into the interior of the channel, and it was easy to peel off. Therefore, when a channel is used, the channel is required to have a strong connection between the form member and the casting concrete, or to be easily connected to a fixture when forming the form. The shape and directionality of the channel material has been a problem.
[0004]
For this reason, the inventor of the present invention has applied a special form as a remaining formwork which is firmly bonded to the concrete to be cast, does not peel off after the work is performed, and can be easily and firmly performed. It has just been proposed in Japanese Patent Application No. 9-26083 and Japanese Patent Application No. 9-26084. In this structure, as shown in FIGS. 5 and 6, a net-like body (2) is embedded in a plate-shaped form member (1) of a concrete system, and a square is formed on the back surface of the form member (1). A channel member (3) framed in a shape is fixed to the mesh body (2), and a decorative portion (1a) is provided on the surface of the mold member (1) and a seal is provided on the entire side surface. Is a residual form in which a groove (1b) is formed. At this time, the direction of the opening (3a) of the channel member (3) is directed inward in FIG. 5 and outward in FIG.
[0005]
[Problems to be solved by the invention]
However, the front side frame on which the frame members (1) are sequentially arranged and the rear side relative member (6) are opposed to each other at a predetermined distance, and the mold is formed by using various fixtures (5). When the formwork is carried out by stacking the frame members (1), as shown in FIG. 7, when entering the inside, the opening (3a) of the channel member (3) and the fixing tool (5) are inserted. The fixing screw (5a) for fixing the joint plate and the like was tightened. However, when the thickness of the concrete retaining wall or the like becomes thin, it is necessary to insert a hand from above the form member (1). In addition, since it is extremely difficult to tighten the fixing screw (5a) of the fixing member (5) on the lower side of the form member (1), there are problems that the workability is extremely deteriorated and a skill is required.
[0006]
SUMMARY OF THE INVENTION An object of the present invention is to provide a remaining formwork which can be easily formed and has an extremely easy fixing of the entire formwork even when the thickness of a concrete retaining wall or the like is small.
[0007]
[Means for Solving the Problems]
The present invention has been made to solve the above-mentioned problems. That is, a net-like body is buried inside a plate-shaped form member of a concrete system, and a rectangular shape is formed on the back surface of the form member. In the remaining formwork provided by fixing the channel member framed to the net-like body, the channel member is a light channel steel having a U-shaped cross section, and one of the symmetrical cross sections is formed by the mold. It is buried inside the member, the other is exposed from the back surface of the mold member, and a large number of holes are formed in the entire periphery, and the openings of the channel members positioned vertically above and below the square frame are directed downward. Structure. In addition, it is good to expose substantially half of the cross section of the channel from the back surface of the form member, and it is also possible to have a decorative part in which a decorative finish is applied to the surface side of the form member, Further, a surface treatment may be applied to the net and the channel.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a diagram showing an embodiment of the present invention, and description will be made based on this. (1) is a plate-shaped form member which is concrete-cured to a certain thickness and area. As the concrete, only resin concrete or special silica cement is often used. The impregnated concrete is impregnated and polymerized with a low-viscosity vinyl monomer, or mixed with short metal fibers and cured, and impregnated and polymerized with a low-viscosity vinyl polymer therein to form a mold. The member (1) whose durability and mechanical strength are significantly improved may be used. Further, the surface of the mold member (1) is usually provided with a cosmetic finish to improve the appearance to form the decorative portion (1a). However, the decorative finish may not be provided depending on the place of use. Further, a sealing groove (1b) is formed on the entire side surface of the mold member (1). This groove (1b) is used to prevent the concrete to be poured from leaking from the overlapping portion of the form member (1) when the form member (1) is stacked as a concrete form. The sealing agent is injected into the combined groove (1b) by injecting a coking agent. Therefore, by providing the groove (1b), the caulking agent can be reliably inserted and completely sealed (see FIGS. 3 and 4), and the concrete can be removed from the mold member (1) of the mold. There is no danger of running out, and there is no fear that the surface of the mold member (1) will be stained by the concrete to be cast.
[0009]
(2) is a mesh body entirely buried inside the mold member (1), and the mesh body (2) is for reinforcing the mold member (1). The mesh (2) is made of a surface-treated wire mesh or a perforated wire mesh plate. In particular, the expanded metal has a unique mesh shape and is strong, has good bonding with the form member (1), and is inexpensive. It is preferable to use the surface. As the surface treatment of the net-like body (2), plating treatment, painting treatment and the like are performed. At this time, when a double coat cationic electrodeposition coating is applied, the rust prevention effect is extremely high, which is particularly preferable. The double-coat cationic electrodeposition coating is a coating method in which the conventional cationic electrodeposition coating is performed twice, and the conventional one-time cationic electrodeposition coating determines the smoothness of the coated surface of the object to be coated. This is a coating method for eliminating the anticorrosion property and the smoothness of the coated surface of the edge-resistant part without coating the edge part. That is, in the first electrodeposition, the function of only the edge corrosion resistance is provided, and the resulting decrease in the smoothness of the coating surface is intended to be covered by the second electrodeposition. This double-coat cation electrodeposition coating is an extremely effective rust-proofing process that can well coat the edge portion because the edge portion is particularly large when the reticulated body (2) is an expanded metal. Enhance.
[0010]
(3) is a U-shaped cross-section light channel steel, four of which are arranged in a square shape, are framed by welding, and one of the symmetrical cross sections is fixed to the mesh body (2) by welding. The other of the cross section of the channel member (3) is exposed from the back surface of the mold member (1), and is located vertically above and below the rectangular frame member (3). Are framed with the opening (3a) facing downward (see FIG. 1). In addition, a large number of holes (3b) for venting air and strengthening the connection are formed in the entire circumference of the channel member (3) as shown in FIG. The hole (3b) is preferably half-buried in the mold member (1). At this time, the formability of the mold member (1) itself to the concrete is improved. The degree of exposure of the opening (3a) of the exposed channel member (3) is preferably about half of the cross section, and the bonding property with the concrete to be cast is improved. At this time, if the degree of exposure is reduced, it becomes impossible to insert the hooking member (42) of the connecting tool (4) for stacking to be described later into the opening (3a) of the channel member (3), and at the time of forming the formwork Also, it is difficult to connect to the connecting member (4) for the stacking, the fixing plate (5) such as the joint plate, the tension support rod and the like. On the other hand, when the degree of exposure increases, the bonding property with the mold member (1) deteriorates, causing a problem in strength. The channel member (3) is subjected to the same surface treatment as that of the reticulated body (2). In this case as well, if a double-coat cationic electrodeposition coating is applied, the rust-preventing effect is high, which is preferable. The remaining formwork of the present invention may be substantially the same as that disclosed in Japanese Patent Application Nos. 9-26083 and 9-26084 proposed by the present inventors. The opening (3a) has a framed structure in which the opening (3a) of the channel member (3) positioned vertically is directed downward, and this point is different.
[0011]
FIG. 4 is a diagram illustrating a state in which the connecting tool for stacking of the present embodiment is used. To explain this, the connecting tool for stacking (4) includes a connecting rod (41) arranged on the back side of the form member (1), and a groove formed in a vertical position and protruding from the connecting rod (41). A hooking member (42) for hooking the opening (3a) of the member (3), and a tightening screw (43) screwed into the hooking member (42) and having a tip abutting on the connecting rod (41). ). The tightening screw (43) is normally provided on the opening (3a) side of the channel member (3) at the upper position as shown in the figure, but is provided at the opening portion of the channel member (3) at the lower position. It may be provided on the (3a) side.
[0012]
Next, a method of using the present invention will be described. The connecting member (4) for stacking is installed on the form member (1) side so that the relative member (6) is opposed to the relative member (6) at a predetermined distance in advance, and various fixing tools (5) are used. Secure the stacking connector (4). The downward opening (3a) of the channel member (3) exposed on the back surface of the mold member (1) is hooked on the hooking member (42) and corresponds to the channel member (3) at the upper position. By fastening the fastening screw (43) from above the form member (1), the form member (1) is fixed to the connecting member (4) for stacking. At this time, only the upper part of the form member (1) is fixed by the tightening screw (43), but the lower part of the form member (1) has the opening (3a) hooked to the hook member (42). Therefore, the pressing force of the casting concrete does not come off. When the tightening screw (43) is tightened, the hanging member (42) is pulled by the tightening screw (43), and the hanging member (42) is fixed in close contact with the opening (3a). (See FIG. 4). The next mold member (1) is hooked on the hook member (42), and the tightening screw (43) corresponding to the channel member (3) at the upper position is tightened. ) Is fixed to the connecting tool (4) for stacking, thereby completing the formwork.
[0013]
【The invention's effect】
The present invention having the above-described configuration has the following effects.
[0014]
A reticulated body (2) in which a mesh member (2) is buried inside a mold member (1) as in claim 1, and a square frame is formed on the back surface of the mold member (1). The channel member (3) is a light channel steel having a U-shaped cross section, and one of the symmetrical cross sections is embedded in the mold member (1). Then, the other is exposed from the back surface of the mold member (1), and the openings (3a) of the upper and lower channel members (3) framed in a rectangular shape are directed downward. By simply inserting the frame member (1) from above into the pre-fixed connecting member (4) for the stacking, the channel member (3) can be mounted with one touch. It is a simple operation of simply turning and tightening the tightening screw (43) of the connecting tool for step stacking (4) at a position where the hand can easily reach the upper part of (1). Since the frame member (1) each other can be fixed, the workability is very good. In particular, even when the thickness of a concrete retaining wall or the like is small, the work of tightening the formwork member (1) can be performed extremely easily, the entire formwork can be fixed, the workability is improved, and the skill is improved. Becomes unnecessary.
[0015]
By exposing approximately half of the cross-section of the channel member (3) from the back surface of the form member (1) as in
[0016]
As described in
[0017]
By subjecting the net (2) and the channel member (3) to surface treatment as described in claim 4, the rust prevention effect is exhibited over a long period of time, and the durability is enhanced.
[0018]
By forming a large number of holes (3b) around the entire circumference of the channel member (3), the concrete to be cast serves the function of bleeding air and strengthens the connection with the concrete. Also fulfills the role of
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a main structure of an embodiment of the present invention.
FIG. 2 is a perspective view showing a net and a channel according to the present embodiment.
FIG. 3 is an explanatory view showing a state in which products of the present invention are stacked.
FIG. 4 is an explanatory view showing a main structure of the connecting tool for stacking of the embodiment.
FIG. 5 is a cross-sectional view showing a main part structure of a conventional product.
FIG. 6 is a cross-sectional view showing a main part structure of a conventional product.
FIG. 7 is an explanatory view showing a state in which the conventional product is stacked using the remaining formwork.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Form member 1a
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23766797A JP3550002B2 (en) | 1997-08-19 | 1997-08-19 | Remaining formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23766797A JP3550002B2 (en) | 1997-08-19 | 1997-08-19 | Remaining formwork |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1162072A JPH1162072A (en) | 1999-03-05 |
| JP3550002B2 true JP3550002B2 (en) | 2004-08-04 |
Family
ID=17018728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23766797A Expired - Fee Related JP3550002B2 (en) | 1997-08-19 | 1997-08-19 | Remaining formwork |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3550002B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5030838B2 (en) * | 2008-03-31 | 2012-09-19 | 株式会社Ｉｈｉインフラシステム | Construction method of bridge wall rails, residual formwork, and bridge wall rails |
| KR101091600B1 (en) | 2009-02-13 | 2011-12-13 | 신상원 | Sidewall PC formwork and construction method using the same |
| JP6196454B2 (en) * | 2013-03-22 | 2017-09-13 | フリー工業株式会社 | Wall construction panel and wall construction method |
| CN107605924A (en) * | 2017-09-08 | 2018-01-19 | 中铁第四勘察设计院集团有限公司 | A kind of Suspension hook structure and its construction method of later stage supplement |
| JP7102251B2 (en) * | 2018-06-26 | 2022-07-19 | 戸田建設株式会社 | Installation structure of concrete panels on the slope of the embankment |
-
1997
- 1997-08-19 JP JP23766797A patent/JP3550002B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1162072A (en) | 1999-03-05 |
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