JPH01158115A - Construction of in-situ slope frame using formwork - Google Patents
Construction of in-situ slope frame using formworkInfo
- Publication number
- JPH01158115A JPH01158115A JP31673287A JP31673287A JPH01158115A JP H01158115 A JPH01158115 A JP H01158115A JP 31673287 A JP31673287 A JP 31673287A JP 31673287 A JP31673287 A JP 31673287A JP H01158115 A JPH01158115 A JP H01158115A
- Authority
- JP
- Japan
- Prior art keywords
- formwork
- reinforcing bars
- concrete
- mortar
- hook
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009415 formwork Methods 0.000 title claims abstract description 40
- 238000010276 construction Methods 0.000 title claims abstract description 9
- 238000011065 in-situ storage Methods 0.000 title 1
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 31
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000011083 cement mortar Substances 0.000 abstract 2
- 238000005507 spraying Methods 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は型枠を設置し、鉄筋を併設し、鉄筋上に低スラ
ンプのモルクル又はコンクリートを吹付ゆで形成する法
枠工法にあって、型枠の開き及びだれを防止できる方法
の発明ｌこ係るものである。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a method of constructing a formwork, installing reinforcing bars, and spraying and boiling low slump morkle or concrete on the reinforcing bars. This invention relates to a method for preventing the frame from opening and sagging.
（従来の技術）
現在、法面保護を必要とする切取法面に型枠を設置し、
併設される鉄筋上に低スランプのモルタル又はコンクリ
ートを吹付けて格子枠を形成する方法が普及し全国各地
で実施されている。(Prior technology) Currently, formwork is installed on cut slopes that require slope protection.
The method of forming lattice frames by spraying low-slump mortar or concrete onto the attached reinforcing bars has become popular and is being practiced all over the country.
上記の法枠工法は色々あるが大別すると以下の２つに分
けられる。There are various methods of constructing the above-mentioned legal framework, but they can be roughly divided into the following two types.
■ 両側型枠が金網板で形成されたものを法面、に格子
状に敷設し、この両側型枠の中に２本ないし４本の鉄筋
を配筋し、鉄筋上から低スランプのモルタル又はコンク
リートを吹付けて法枠を形成するもの。■ The formwork on both sides is made of wire mesh plates and is laid in a lattice pattern on the slope, two to four reinforcing bars are arranged inside the formwork on both sides, and low slump mortar or Forming a legal frame by spraying concrete.
■ 穴あき鋼板、耐水性ダンボールもしくはプラスチの
板を四角形状の型枠を形成し、この型枠を法面に載置し
、型枠を型枠との門に鉄筋を配筋し、鉄筋上に低スラン
プのモルタル又はコンクリートを吹付けて法枠を形成す
るもの。■ Form a rectangular formwork using perforated steel plates, water-resistant cardboard or plastic plates, place this formwork on the slope, place reinforcing bars at the gates between the formwork and the reinforcing bars. A method of forming a legal frame by spraying low slump mortar or concrete on the concrete.
以上の法枠工法は法面を安定させて保護するとともに、
格子枠内に植物種子及び植生基材を吹付ければ緑化も可
能で、しかも極めて施工性がよいことから最近急速な勢
いで普及している。The above slope construction method stabilizes and protects the slope, and
Greening is possible by spraying plant seeds and vegetation base material inside the lattice frame, and it is also extremely easy to install, so it has recently become popular.
（発明が解決しようとする問題点）
しかしながら、上記した型枠による現場打ち法枠工法、
特に両側型枠（こ金網板を用いた型枠による法枠工法で
は、鉄筋上に低スランプのモルタル又はコンクリートを
吹付けて梁を形成する場合、梁の断面が幅１５〜５０
ｃｍ、厚さが１５〜５０ｃｍと非常に大きいものである
為、横方向の梁に規格を満足するよう一度の吹付けでモ
ルタル又はコンクリートをちると、重量によって型枠が
開いたり、梁が下方へ湾曲して設計通りに施工すること
がむつかしいといった品質管理上の問題があった。(Problems to be solved by the invention) However, the cast-in-place frame construction method using the above-mentioned formwork,
In particular, in the method of construction using formwork using formwork on both sides (wire mesh plates), when forming a beam by spraying low slump mortar or concrete onto reinforcing bars, the width of the cross section of the beam is 15 to 50 mm.
cm, with a thickness of 15 to 50 cm, so if mortar or concrete is sprayed in one shot to meet the standards on horizontal beams, the formwork may open due to the weight, or the beams may move downward. There were quality control problems such as the curved shape making it difficult to construct according to the design.
これを回避する方法として、モルタル又はコンクリート
を２回に分けて吹付けし、梁を形成する方法もあるが、
１回目に吹付けしたモルタル又はコンクリートと、２回
目に吹付けしたモルタル又はコシクリートが肌分かれし
易く、梁が層状とな）て強度の乏しいものとなり、作業
も２度手間となる。One way to avoid this is to spray mortar or concrete in two parts to form beams.
The mortar or concrete sprayed the first time and the mortar or cosicrete sprayed the second time tend to separate, resulting in a beam that is layered and has poor strength, which requires work twice.
以上のように従来のモルタル又はコンクリートの吹付け
による法枠工法は、横の梁を形成する上で技術的な問題
があると共に施工性が悪く、その上経済性も悪いという
欠点があった。As described above, the conventional method of constructing frames by spraying mortar or concrete has the drawbacks of technical problems in forming horizontal beams, poor workability, and poor economic efficiency.
そこで本発明者は、従来のモルタル又はコンクリートに
よる法枠工法の吹付けにより形成する梁の問題につき種
々検討した結果、梁を設計書通りに施工できる手段をこ
こに見い出し本発明に到達した。As a result of various studies on the problem of beams formed by the conventional spraying method using mortar or concrete, the inventors of the present invention have found a means for constructing beams according to the design and have arrived at the present invention.
（問題点を解決する為の手段）
すなわち本発明は、型枠と鉄筋を併設して形成する現場
打ち法枠工法において、フックを有する金具で型枠と鉄
筋を連結させ、その後鉄筋上にモルタル又はコンクリー
トを吹付けて法枠を形成することを特徴とする現場打ち
法枠施工方法である。(Means for Solving the Problems) That is, the present invention connects the formwork and the reinforcing bars with metal fittings having hooks in the cast-in-place frame construction method in which the formwork and the reinforcing bars are installed together, and then mortar is placed on the reinforcing bars. Alternatively, it is a cast-in-place frame construction method characterized by forming the frame by spraying concrete.
以下本発明を図示の実施例に基づき詳細に説明する。The present invention will be explained in detail below based on illustrated embodiments.
まず、型枠と鉄筋を連結させるフックを有する金具につ
き、その材質について説明すると、材質は一般的に鋼製
であり、そのうち軟鉄あるいは鋼鉄のものが一番望まし
いが、アルミ、銅等の非鉄金属でもよく、時としては化
学性のプラスチック等でもよい。First, to explain the material of the metal fittings with hooks that connect the formwork and reinforcing bars, the material is generally steel, of which soft iron or steel is the most desirable, but non-ferrous metals such as aluminum and copper are also used. In some cases, chemical plastic or the like may also be used.
次に形状は、第１図に示す如く、両端にフック（８）＠
有するＳ字状、第２図、茎３図に示す如く、一本の芯線
（７）に直角に接続されたフック（８）を有する金具（
１）である、一般的には第２図、第３図の７本の芯線に
直角に接続されたフックを有する金具を用いるが、型枠
の間に配筋する鉄筋と型枠との距離によってフックの長
さが決まる。Next, the shape is as shown in Figure 1, with hooks (8) at both ends.
As shown in Figure 2 and Stem 3, the metal fitting has a hook (8) connected at right angles to one core wire (7).
1) Generally, metal fittings with hooks connected at right angles to the seven core wires shown in Figures 2 and 3 are used, but the distance between the reinforcing bars placed between the formwork and the formwork is determines the length of the hook.
次に鉄筋（３）と型枠（２）の連結方式につき説明する
と、第４図に図示の如く、横梁を形成する型枠（２）の
下方側周隙よりフックを有する金具による連結方法を一
実施例として断面図で示したものである。Next, to explain the method of connecting the reinforcing bars (3) and the formwork (2), as shown in Fig. 4, a method of connecting the reinforcing bars (3) and the formwork (2) using metal fittings with hooks is used from the lower circumference of the formwork (2) forming the cross beam. It is shown in a cross-sectional view as an example.
この場合、下方側型枠は必要とされる規格より若干鉄筋
側、即ち上方に連結固定しておく場合もある。In this case, the lower formwork may be connected and fixed slightly closer to the reinforcing bars than the required standard, that is, above.
尚、このフックを存する金具による連結ピッチは、形成
する法枠の断面積、即ち吹付けられるモルタル又はコン
クリートのボリュームによって異なるが３０〜１００ｃ
ｍのピッチで連結していく。The connection pitch of the metal fittings containing the hooks varies depending on the cross-sectional area of the legal frame to be formed, that is, the volume of mortar or concrete to be sprayed, but is 30 to 100 cm.
They are connected at a pitch of m.
この他、耐水性ダンボールもしくはプラスチックの板で
四角形状の型枠を形成し、その型枠を法面に載置した後
、型枠と型枠の間に鉄筋を配筋して、その上から低スラ
ンプのモルクル又はコンクリートを吹付けて法枠を形成
する方法においても同様な方法をとる。In addition, a rectangular formwork is formed using water-resistant cardboard or plastic plates, and after the formwork is placed on the slope, reinforcing bars are placed between the formwork and the formwork is placed on top of the formwork. A similar method is used to form a slope by spraying low slump morkle or concrete.
以上の如く鉄筋と型枠とを連結固定する作業が終ったな
らば、鉄筋上から低スランプのモルタル又はコンクリー
トを吹付けて現場打ち法枠を完成する。Once the work of connecting and fixing the reinforcing bars and formwork is completed as described above, low slump mortar or concrete is sprayed onto the reinforcing bars to complete the cast-in-place frame.
尚、本発明において法面（２０）全面に金網（５）を張
設しておいて、その後上記方法を実施する場合もある。In the present invention, a wire mesh (5) may be stretched over the entire surface of the slope (20), and then the above method may be carried out.
（発明の効果）
以上のように本発明は、型枠と鉄筋と鉄筋を併設しで形
成する現場打ち法枠工法において、フックを存する金具
で、型枠と鉄筋を連結させ、その後鉄筋上にモルタル又
はコンクリートを吹付けて法枠を形成することを特徴と
する型枠を用いる現場打ち法枠の施工方法であるから、
モルクル又はコンクリートを吹付けて法枠を形成するに
際し、形成する梁が横方向の梁で非常に断面積の大きい
ものであってもフｔンクを有する金具によって鉄筋と下
方側型枠が連結されているため、モルクル又はコンクリ
ートの重量によって型枠が開いたり、□梁が下方へ湾曲
することがなくなり、−度の吹付けによりモルタル又は
コンクリートを法枠を形成する所定の場所に規格通りに
ちることができた。(Effects of the Invention) As described above, the present invention connects the formwork and the reinforcing bars with a metal fitting having hooks, and then connects the reinforcing bars onto the reinforcing bars in the cast-in-place frame construction method in which the formwork, reinforcing bars, and reinforcing bars are installed together. Since it is a method of constructing a cast-in-place frame using a formwork characterized by forming the frame by spraying mortar or concrete,
When forming a legal frame by spraying morkle or concrete, even if the beam to be formed is a horizontal beam with a very large cross-sectional area, the reinforcing bars and the lower side formwork are connected by metal fittings with foot links. This prevents the formwork from opening due to the weight of the mortar or concrete, and prevents the beam from curving downward, allowing the mortar or concrete to be sprayed to the specified location to form the legal framework according to the specifications. I was able to do that.
第１図、第２図、第３図はフックを有する金具の斜視図
。
第４図は両側型枠が金網板の型枠と鉄筋とを金具で連結
した状態を表わす斜視図。
第５図は金具による連結方法を示す断面図。
図中（１）はフックを有する金具、（２）は型枠、（３
）は鉄筋、（４）はフープ筋、（５）は金網、（６）は
アシカービシ、（７）は芯線、（８）はフック、（２０
）は法面である。1, 2, and 3 are perspective views of a metal fitting having a hook. FIG. 4 is a perspective view showing a state in which the formwork on both sides connects the formwork of the wire mesh plate and the reinforcing bars with metal fittings. FIG. 5 is a sectional view showing a connection method using metal fittings. In the figure, (1) is a metal fitting with a hook, (2) is a formwork, and (3) is a metal fitting with a hook.
) is reinforcing bar, (4) is hoop bar, (5) is wire mesh, (6) is reed carving, (7) is core wire, (8) is hook, (20
) is a slope.
Claims (1)
おいて、フックを有する金具で 型枠と鉄筋を連結させ、その後鉄筋上にモ ルタル又はコンクリートを吹付けて法枠を 形成することを特徴とする型枠を用いる現 場打ち法枠の施工方法。 ２）フックを有する金具が、一本の芯線に直角に接続さ
れたフックを有する金具である 特許請求の範囲第１項の型枠を用いる現場 打ち法枠の施工方法。[Claims] 1) In the cast-in-place frame construction method in which formwork and reinforcing bars are installed together, the formwork and reinforcing bars are connected with metal fittings having hooks, and then mortar or concrete is sprayed onto the reinforcing bars. A method for constructing a cast-in-place frame using a formwork characterized by forming a frame. 2) A method for constructing a cast-in-place frame using a formwork according to claim 1, wherein the metal fitting having a hook is a metal fitting having a hook connected at right angles to one core wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31673287A JPH01158115A (en) | 1987-12-14 | 1987-12-14 | Construction of in-situ slope frame using formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31673287A JPH01158115A (en) | 1987-12-14 | 1987-12-14 | Construction of in-situ slope frame using formwork |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01158115A true JPH01158115A (en) | 1989-06-21 |
| JPH0520528B2 JPH0520528B2 (en) | 1993-03-19 |
Family
ID=18080283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31673287A Granted JPH01158115A (en) | 1987-12-14 | 1987-12-14 | Construction of in-situ slope frame using formwork |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01158115A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11407042B2 (en) | 2019-01-07 | 2022-08-09 | Omg, Inc. | Counterbore tool and setting tool for fascia system and installation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59173742U (en) * | 1983-04-28 | 1984-11-20 | 建設基礎エンジニアリング株式会社 | Spacing holder for legal frame |
-
1987
- 1987-12-14 JP JP31673287A patent/JPH01158115A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59173742U (en) * | 1983-04-28 | 1984-11-20 | 建設基礎エンジニアリング株式会社 | Spacing holder for legal frame |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11407042B2 (en) | 2019-01-07 | 2022-08-09 | Omg, Inc. | Counterbore tool and setting tool for fascia system and installation method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0520528B2 (en) | 1993-03-19 |
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