JP3058809B2 - Reinforcing bar formwork - Google Patents
Reinforcing bar formworkInfo
- Publication number
- JP3058809B2 JP3058809B2 JP7033645A JP3364595A JP3058809B2 JP 3058809 B2 JP3058809 B2 JP 3058809B2 JP 7033645 A JP7033645 A JP 7033645A JP 3364595 A JP3364595 A JP 3364595A JP 3058809 B2 JP3058809 B2 JP 3058809B2
- Authority
- JP
- Japan
- Prior art keywords
- bars
- bar
- main reinforcing
- reinforcing bar
- formwork
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、法面の安定化を法枠を
構築することにより達成する技術に係り、特に鉄筋先組
用型枠に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for achieving stabilization of a slope by constructing a formwork, and more particularly to a formwork for reinforcing bars.
【０００２】[0002]
【従来の技術】いわゆるフリーフレーム工法に代表され
る法枠構築工法は、法面勾配が大きい場合において法面
の抑止力が高いために汎用されている。2. Description of the Related Art A method of constructing a sloping frame represented by a so-called free frame method is widely used because of its high deterrent on a slope when the slope is large.
【０００３】この種の法枠構築にあたり、代表的には金
網からなる型枠が用いられるが、一般的には、左右の金
網板を上下においてそれぞれ連結用スペーサーにより回
動自在に連結することにより、運搬時において、折り畳
み可能としている。[0003] In constructing this type of frame, a formwork made of a wire mesh is typically used. Generally, a left and right wire mesh plate is rotatably connected to each other by connecting spacers at upper and lower sides. It can be folded during transportation.
【０００４】このような型枠を用いる場合、下部連結用
スペーサーがあるために、型枠を設置した後、左右の金
網板間に、作業足場として不安定な法面上において、法
面から所定の高さ位置に鉄筋籠を組み立てることを余儀
無くされており、作業性が大幅に低下するものであっ
た。In the case of using such a formwork, since there is a spacer for lower connection, after the formwork is installed, a predetermined distance from the slope is placed between the left and right wire mesh plates on an unstable slope as a work scaffold. It was necessary to assemble the reinforcing rod cage at the height of, and the workability was greatly reduced.
【０００５】これに対して、特公平５−３８０９６号公
報においては、鉄筋先組用型枠が提案されている。これ
を図１により説明すると、有孔板１００，１００の間を
横筋１０１により連結し、この横筋１０１の両側部にお
いて縦筋１０２，１０２を固着した型枠を用意する。他
方で、上部主鉄筋１０４Ａ及び下部主鉄筋１０４Ｂをス
ターラップ筋１０４Ｃにより一体化した鉄筋籠１０４
を、先にアンカー鉄筋１０３により法面上に配置し、そ
の後、前記の型枠を持ち込んで、横筋１０１を各上部主
鉄筋１０４Ａ，１０４Ａ…群上に乗せるとともに、縦筋
１０２，１０２をスターラップ筋１０４Ｃの側面外方に
配置するものである。On the other hand, Japanese Patent Publication No. Hei 5-38096 proposes a formwork for reinforcing bars. This will be described with reference to FIG. 1. A perforated plate 100, 100 is connected by a horizontal streak 101, and a formwork having vertical streaks 102, 102 fixed to both sides of the horizontal streak 101 is prepared. On the other hand, a reinforcing bar cage 104 in which an upper main reinforcing bar 104A and a lower main reinforcing bar 104B are integrated by a stirrup bar 104C.
Are first placed on the slope by the anchor reinforcing bar 103, and then the above-mentioned formwork is brought in, the horizontal bar 101 is placed on each of the upper main reinforcing bars 104A, 104A... And the vertical bars 102, 102 are stirruped. It is arranged outside the side surface of the streak 104C.
【０００６】[0006]
【発明が解決しようとする課題】かかる鉄筋先組用型枠
は、前述の作業性の悪さを解消する上できわめて優れた
ものである。The formwork for rebar pre-assembly is extremely excellent in solving the above-mentioned poor workability.
【０００７】しかし、この先行技術では、現実に使用す
るときにおいて根本的な問題があることが判った。すな
わち、第１に、型枠を設置する場合において、横筋１０
１を各上部主鉄筋１０４Ａ，１０４Ａ…群上に乗せる態
様となるが、上部主鉄筋１０４Ａ，１０４Ａ…群が正確
に同一線上に配置されているのであれば問題はないが、
現実には不整であり、その結果、一部の突出した上部主
鉄筋１０４Ａを境として型枠を安定して法面上に配置す
ることができない。[0007] However, it has been found that this prior art has a fundamental problem when actually used. That is, first, when installing the formwork, the horizontal streaks 10
1 is placed on each of the upper main reinforcing bars 104A, 104A..., But there is no problem if the upper main reinforcing bars 104A, 104A.
In reality, it is irregular, and as a result, the formwork cannot be stably placed on the slope with some protruding upper main reinforcing bars 104A as boundaries.
【０００８】また、第２に、縦筋１０２，１０２はスタ
ーラップ筋１０４Ｃの側面外方に配置するものであり、
型枠の横断面左右方向にある程度移動するために、左右
方向の中心への位置決めが困難である。しかも、前記公
報の第４図にかぶり厚Ｌ2 とは、有孔板１００と縦筋１
０２外面との離間距離があることが定義されているが、
実際には、かぶり厚とは、鉄筋籠１０４（図示された例
ではスターラップ筋１０４Ｃ）と有孔板１００との離間
距離であることからしても、先行技術においては、縦筋
１０２，１０２がかぶり厚を規定する単なる目安の意味
でしかないものである。[0008] Second, the vertical streaks 102, 102 are disposed outside the side surfaces of the stirrup streaks 104C.
Since the mold is moved to some extent in the lateral direction in the transverse section, it is difficult to position the mold at the center in the lateral direction. Moreover, the fog thickness L 2 in FIG. 4 of the publication, the perforated plate 100 and the vertical streak 1
02 It is defined that there is a separation distance from the outer surface,
In actuality, in the prior art, the cover thickness is a distance between the reinforcing bar cage 104 (the stirrup bar 104C in the illustrated example) and the perforated plate 100. It is only a mere guide to the thickness of the cover.
【０００９】第３に、横筋１０１を各上部主鉄筋１０４
Ａ，１０４Ａ…群上に乗せる態様であるから、鉄筋籠１
０４とは、たとえば同公報の第４図に示されているよう
に、別途型枠を鉄筋籠１０４に安定して固定するため
に、結束筋１０５により縦筋１０２及び鉄筋籠１０４と
有孔板１００とを連結する作業が必要となる。Third, the horizontal bar 101 is connected to each of the upper main reinforcing bars 104.
A, 104A ... Since it is the mode of putting on the group, the reinforcing bar 1
For example, as shown in FIG. 4 of the same publication, the connecting bars 105 are used to stably fix the formwork to the reinforcing bar cage 104, and the longitudinal bars 102 and the reinforcing bar cage 104 are connected to the perforated plate. An operation of connecting the H.100 and the H.100 is required.
【００１０】しかし、この作業は型枠の設置後の新たな
作業であり、作業時間の増大を招く。しかも、この作業
を省略すると、型枠内にモルタルまたはコンクリートを
吹付または打設して充填するときにおいて、その充填に
伴って重量がかかるために、型枠の下部が裾拡がりに拡
大する結果となる。かかる問題については、同公報第７
図に示されているように、縦筋１０２の下部と有孔板１
００とを補助筋により予め連結しておくことが有効であ
ると一見考えられるが、有孔板１００がある程度の可撓
性を示すのであるから、基本的に、充填材に対抗する支
点は、横筋１０１と縦筋１０２との交点のみであり、充
填材にして型枠の変形を防止する効果は殆どない。[0010] However, this operation is a new operation after the installation of the formwork, and causes an increase in operation time. Moreover, if this operation is omitted, when the mortar or concrete is sprayed or poured into the form and filled, the weight increases with the filling, so that the lower part of the form expands to the hem. Become. Regarding this problem, refer to the publication No. 7
As shown in the figure, the lower part of the vertical streak 102 and the perforated plate 1
At first glance, it is considered effective to connect 00 and an auxiliary muscle in advance, but since the perforated plate 100 shows a certain degree of flexibility, basically, a fulcrum against the filler is: There is only an intersection between the horizontal streak 101 and the vertical streak 102, and there is almost no effect of using a filler to prevent deformation of the mold.
【００１１】したがって、本発明の課題は、作業性の向
上の観点から有効な鉄筋先組用型枠の利点を担保しなが
ら、充填材に対してより優れた安定性を示し、基本的に
は型枠を鉄筋籠上に設置するのみで直ちに硬化材の吹付
または打設に移行でき、この点で作業性に優れ、しか
も、型枠の位置決めを著しく正確に行うことができる鉄
筋先組用型枠を提供することにある。[0011] Therefore, an object of the present invention is to exhibit more excellent stability with respect to a filler while maintaining the advantages of an effective form for reinforcing a reinforcing bar from the viewpoint of improving workability. By simply placing the formwork on the reinforcing bar cage, it is possible to immediately shift to spraying or pouring of the hardening material. In this respect, the workability is excellent and the formwork positioning can be performed extremely accurately. Is to provide.
【００１２】[0012]
【課題を解決するための手段】図２以降に示す図面の符
号を参照すると、上記課題を解決した本発明の鉄筋先組
用型枠は、上の左右に位置する上側主鉄筋５１，５１及
び下の左右に位置する下側主鉄筋５２，５２、並びにス
ターラップ筋５４を有する鉄筋籠５０を所定位置に先に
配置し、その両側の左右に有孔板１，１を設置する鉄筋
先組用型枠において、各有孔板１，１の少なくとも上下
２段に、鉄筋籠５０側に延在する上側及び下側主鉄筋用
連結筋１０，１１が対応する有孔板１１に固定され、こ
れらの主鉄筋用連結筋１０，１１が縦連結筋２０により
一体的に連結され、前記スターラップ筋５４よりも上方
に、前記左右の有孔板１，１を連結する間隔保持筋３０
が設けられ、前記主鉄筋用連結筋１０，１１及び前記間
隔保持筋３０の各両端は前記有孔板１，１との間で鉛直
軸周りに回転可能に連結され、前記上側及び下側主鉄筋
用連結筋１０，１１は、それぞれ先端部が下方に向かう
フック状をなし、これらの先端部が前記上側主鉄筋５
１，５１及び下側主鉄筋５２，５２に上方から係止され
るように構成され、前記縦連結筋２０が上方に延在して
前記間隔保持筋３０と一体的に連結され、前記主鉄筋用
連結筋１０，１１、縦連結筋２０及び間隔保持筋３０は
長手方向に複数配置されていることを特徴とするもので
ある。Referring to the reference numerals in the drawings shown in FIG. 2 and subsequent figures, the rebar leading formwork of the present invention, which has solved the above-mentioned problem, comprises upper main rebars 51, 51 located on the upper left and right sides. Reinforcing bar pre-assembly in which lower main reinforcing bars 52, 52 located on the lower left and right sides and a reinforcing bar cage 50 having stirrup bars 54 are first arranged at predetermined positions, and perforated plates 1, 1 are installed on the left and right sides on both sides thereof. In the forming form, upper and lower connecting bars 10 and 11 for the main reinforcing bars extending toward the reinforcing bar cage 50 are fixed to the corresponding perforated plates 11 in at least two stages above and below each of the perforated plates 1 and 1, The connecting bars 10 and 11 for the main reinforcing bars are integrally connected by a vertical connecting bar 20, and a spacing holding bar 30 connecting the left and right perforated plates 1 and 1 above the stirrup bar 54.
And both ends of the connecting bars 10 and 11 for the main reinforcing bars and the spacing bars 30 are connected to the perforated plates 1 and 1 so as to be rotatable around a vertical axis, and the upper and lower main bars are connected to each other. Each of the reinforcing bars 10 and 11 has a hook shape with a tip portion directed downward, and these tip portions are connected to the upper main rebar 5.
1, 51 and the lower main reinforcing bars 52, 52 are configured to be locked from above, and the vertical connecting bars 20 extend upward and are integrally connected to the spacing holding bars 30, and The connecting bars 10, 11, the vertical connecting bars 20, and the spacing bars 30 are arranged in plural numbers in the longitudinal direction.
【００１３】また、前記上側及び下側主鉄筋用連結筋１
０，１１の各フック状先端と縦連結筋２０との間に前記
上側主鉄筋５１，５１及び下側主鉄筋５２，５２が挟ま
れる構成も提案される。Further, the connecting bar 1 for the upper and lower main reinforcing bars is provided.
A configuration in which the upper main reinforcing bars 51 and 51 and the lower main reinforcing bars 52 and 52 are sandwiched between the hook-shaped tips 0 and 11 and the vertical connecting bars 20 is also proposed.
【００１４】さらに、前記縦連結筋２０より有孔板１側
に第２縦連結筋２１を設け、前記第２縦連結筋２１は間
隔保持筋２０と主鉄筋用連結筋１０，１１のいずれか一
つとを一体的に連結してある構成が提案される。Further, a second vertical connecting bar 21 is provided on the perforated plate 1 side from the vertical connecting bar 20, and the second vertical connecting bar 21 is one of the spacing maintaining bar 20 and the connecting bars 10 and 11 for main reinforcing bars. A configuration in which one and the other are integrally connected is proposed.
【００１５】[0015]
【作用】本発明の鉄筋先組用型枠は、後述の実施例から
も明らかなように、従来のものと同様に作業性を大幅に
改善する。しかも、主に、前記先行技術に係る型枠に比
較しても次記の作用効果を奏する。As will be apparent from the embodiments described later, the workability of the rebar leading formwork of the present invention greatly improves the workability similarly to the conventional one. In addition, the following operation and effects are mainly obtained as compared with the formwork according to the prior art.
【００１６】（１）型枠自体の剛性の高まり 有孔板１の少なくとも上下２段に固定された各主鉄筋用
連結筋１０，１１が、縦連結筋２０により一体的に連結
されているので、それ自体では変形する有孔板１が、各
主鉄筋用連結筋１０，１１及び縦連結筋２０とにより、
片側あたりで、方形に枠組された態様となり、剛性が高
まる。(1) Increase in rigidity of the formwork itself The connecting bars 10 and 11 for the main reinforcing bars fixed at least in two steps above and below the perforated plate 1 are integrally connected by the vertical connecting bars 20. The perforated plate 1, which is deformed by itself, is formed by the connecting bars 10 and 11 for the main reinforcing bars and the vertical connecting bars 20.
Around one side, a rectangular frame is formed, and the rigidity is increased.
【００１７】（２）スターラップ筋の位置と無関係に型
枠を配置できる 鉄筋籠の横筋を上部主鉄筋上に配置する先行技術では、
たまたまスターラップ筋に位置した場合には、他の横筋
との関係で法面勾配に沿わなくなるともに設置が不安定
となるのに対して、本発明においては、鉄筋籠５０より
上方において、前記左右の有孔板１，１を連結する間隔
保持筋３０が設けられるので、前述の不安定要因は全く
なく、安定した設置が可能となる。(2) The formwork can be arranged irrespective of the position of the stirrup streaks In the prior art in which the horizontal streaks of the rebar cage are arranged on the upper main rebar,
When it happens to be located on the stirrup streaks, it does not follow the slope slope and the installation becomes unstable in relation to other horizontal streaks, whereas in the present invention, the left and right The spacing streaks 30 for connecting the perforated plates 1 and 1 are provided, so that the above-mentioned instability factor is not at all and stable installation is possible.
【００１８】（３）充填材の充填に伴う型枠の変形を防
止できる 主鉄筋用連結筋１０，１１は、その先端部１０Ａ，１１
Ａが下方に向かうフック状をなし、これらの先端部１０
Ａ，１１Ａが鉄筋籠５０の主鉄筋５１，５２に上方から
係止されるように構成されているので、充填材（硬化
材）の充填に伴って、型枠の下部に対して外側に裾拡が
りをもたらす力が作用するが、その拡開力に、主鉄筋用
連結筋１０，１１へのフック状先端部１０Ａ，１１Ａの
係止状態が対抗するので、結果として、裾拡がりが生ぜ
ず、型枠の変形が防止される。(3) The connecting bars 10 and 11 for the main reinforcing bars, which can prevent the deformation of the formwork due to the filling of the filler, have the tip portions 10A and 11
A has a downward hook shape, and these tips 10
A and 11A are configured to be locked from above from the main rebars 51 and 52 of the rebar basket 50, so that the hem is outwardly formed with respect to the lower portion of the formwork with the filling material (hardening material). Although the force causing the spread acts, the locking state of the hook-like tips 10A and 11A against the connecting bars 10 and 11 for the main rebar opposes the spread force, and as a result, the skirt does not spread, The deformation of the formwork is prevented.
【００１９】（４）作業性の向上及び迅速化 予め法面上に設置した鉄筋籠５０に対して型枠を設置す
る際に、主鉄筋用連結筋１０，１１のフック状先端部１
０Ａ，１１Ａを、鉄筋籠５０の主鉄筋５１，５２に上方
から係止するだけでも、鉄筋籠５０との連結を図ること
ができるので、先行技術のように、別途結束筋（番線）
によりすべての交差部を連結する必要はなく、本発明で
は型枠設置後、適宜の個所を簡単に結束するだけで、直
ちに硬化材の吹付または打設に移行できので、作業性の
迅速化が可能である。(4) Improvement and speed-up of workability When the formwork is installed on the reinforcing bar cage 50 previously set on the slope, the hook-shaped tip portions 1 of the connecting bars 10 and 11 for the main reinforcing bars are used.
Even if the 0A and 11A are locked to the main reinforcing bars 51 and 52 of the reinforcing bar cage 50 from above only, the connection with the reinforcing bar cage 50 can be achieved.
Therefore, it is not necessary to connect all the intersections, and in the present invention, it is possible to immediately shift to spraying or pouring of the hardening material simply by bundling the appropriate portions after setting the formwork, so that workability can be speeded up. It is possible.
【００２０】（５）型枠の正確な位置決めを行うことが
できる 所定寸法の鉄筋籠５０に対して予め所定寸法の型枠が用
意され、主鉄筋用連結筋１０，１１のフック状先端部１
０Ａ，１１Ａが、鉄筋籠５０の上下主鉄筋５１，５２に
係止されるので、左右方向に関して、主鉄筋用連結筋１
０，１１が有孔板１，１の位置を決め、結果として、有
孔板１，１の鉄筋籠５０に対する上面及び側面硬化材の
かぶり厚を正確に規定する。(5) Precise positioning of the formwork A formwork of a predetermined size is prepared in advance for the reinforcing bar cage 50 of a predetermined size, and the hook-shaped tip 1 of the connecting bars 10 and 11 for main reinforcing bars is prepared.
Since 0A and 11A are locked to the upper and lower main reinforcing bars 51 and 52 of the reinforcing bar cage 50, the connecting bars 1 for the main reinforcing bar in the left-right direction.
Reference numerals 0 and 11 determine the positions of the perforated plates 1 and 1, and as a result, accurately define the cover thickness of the upper surface and the side surface hardening material on the reinforcing bar 50 of the perforated plates 1 and 1.
【００２１】しかも、鉄筋籠５０の上下主鉄筋５１，５
２への係止により、左右に型枠がずれることはなく、横
断面において時計方向または反時計方向に揺動すること
もなく位置的に安定しており、型枠を正確に位置決めす
ることができる。Moreover, the upper and lower main reinforcing bars 51, 5 of the reinforcing bar cage 50 are provided.
By locking to 2, the formwork does not shift to the left and right, and does not swing clockwise or counterclockwise in the cross-section, and is stable in position, allowing accurate positioning of the formwork. it can.
【００２２】（６）目的に応じた設計の自由性 先行技術では、横筋が上面コンクリートかぶり厚寸法だ
け有孔板の上端から下方に取り付けることが条件とされ
ている。その結果、（２）の項で述べたように、たまた
まスターラップ筋に位置した場合には、他の横筋との関
係で法面勾配に沿わなくなるともに設置が不安定とな
る。本発明の間隔保持筋３０は、有孔板１，１を連結す
ることのみを主眼としており、かぶり厚寸法を規定する
ものではなく、しかも有孔板１，１の荷重を支えるもの
ではないので、長手方向に関して、主鉄筋用連結筋１
０，１１及び縦連結筋２０の配設位置とは無関係に配置
することができ、場合により少ない（または多い）本数
とすることができる。さらに、長手方向位置をずらした
方が後述のように、法面勾配方向の有孔板１のずれを防
止できることがあり、最少量の部材により、型枠の剛性
をより高めるために、長手方向に関して同一の位置にし
て、縦連結筋２０を上方に延在して間隔保持筋３０と一
体的に連結することができる。かくして、目的に応じた
種々の設計が可能となる。(6) Freedom of Design According to Purpose In the prior art, it is a condition that the horizontal streak is attached downward from the upper end of the perforated plate by the thickness of the upper concrete cover. As a result, as described in the section (2), when it happens to be located on the stirrup streaks, it does not follow the slope of the slope due to the relationship with other lateral streaks, and the installation becomes unstable. The spacing streaks 30 of the present invention are intended only to connect the perforated plates 1 and 1 and do not specify the cover thickness dimension and do not support the load of the perforated plates 1 and 1. Connecting rod 1 for the main rebar in the longitudinal direction
0 and 11 and the vertical connecting bars 20 can be arranged irrespective of the arrangement position, and the number can be reduced (or increased) in some cases. Further, shifting the longitudinal position may prevent the perforated plate 1 from shifting in the slope direction, as will be described later. In order to further increase the rigidity of the mold with a minimum number of members, In the same position, the vertical connecting bars 20 can be extended upward and connected integrally with the spacing bars 30. Thus, various designs according to the purpose are possible.
【００２３】[0023]
【実施例】以下、本発明の実施例を、図面を参照しなが
ら具体的に説明する。図２に本発明の型枠の例を示し、
図３に鉄筋籠５０の例を示し、図４及び図５に法面に設
置した状態を示してある。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 2 shows an example of the formwork of the present invention,
FIG. 3 shows an example of the reinforcing rod cage 50, and FIGS. 4 and 5 show a state where the reinforcing rod basket 50 is installed on a slope.
【００２４】本発明の型枠は、適宜の形状及び寸法で編
成した金網などからなる有孔板１，１により型枠の側面
を形成し、その少なくとも上下２段に、鉄筋籠５０に延
在する主鉄筋用連結筋１０，１１が対応する有孔板１，
１に固定されている。この固定態様として、完全に固着
することもできるが、運搬において折り畳み、すなわち
有孔板１，１相互を重ねるように折り畳みを行うことに
より嵩を減少させるために、図示されているように、各
主鉄筋用連結筋１０，１１の基端部をループ状のフック
形状として、対応する有孔板１，１に鉛直軸周りに回転
可能に連結されて固定されることが望ましい。In the mold of the present invention, the side surfaces of the mold are formed by perforated plates 1 and 1 made of a wire mesh or the like knitted in an appropriate shape and dimensions, and extended to the rebar basket 50 at least in two steps. Perforated plate 1, to which the connecting bars 10 and 11 for
Fixed to 1. In this fixing mode, it can be completely fixed. However, in order to reduce the bulk by folding in transportation, that is, by folding the perforated plates 1 and 1 so as to overlap each other, as shown in FIG. It is preferable that the base ends of the connecting bars 10 and 11 for the main reinforcing bars have a loop-like hook shape, and are connected and fixed to the corresponding perforated plates 1 and 1 so as to be rotatable around a vertical axis.
【００２５】これらの主鉄筋用連結筋１０，１１は、縦
連結筋２０により一体的に連結、たとえば溶接により連
結されている。鉄筋籠５０より上方位置に相当する位置
において、左右の有孔板１，１を連結する間隔保持筋３
０が設けられている。この間隔保持筋３０においても、
同様に運搬性を考えて、図示されているように、その両
端部をループ状のフック形状として、対応する有孔板
１，１に鉛直軸周りに回転可能に連結されて固定されて
いる。The connecting bars 10 and 11 for main reinforcing bars are integrally connected by vertical connecting bars 20, for example, by welding. At a position corresponding to a position above the reinforcing bar cage 50, a space holding bar 3 for connecting the left and right perforated plates 1, 1.
0 is provided. Also in this spacing maintaining muscle 30,
Similarly, in consideration of portability, as shown in the figure, both ends are formed in a loop-like hook shape and fixed to the corresponding perforated plates 1 and 1 so as to be rotatable around a vertical axis.
【００２６】主鉄筋用連結筋１０，１１は、その先端部
１０Ａ，１１Ａが、実施例では９０度折曲されて、下方
に向かうフック状をなし、これらの先端部１０Ａ，１１
Ａが鉄筋籠５０の主鉄筋５１，５２に上方から係止され
るように構成されている。The connecting rods 10 and 11 for the main reinforcing bars are formed such that their tips 10A and 11A are bent 90 degrees in the embodiment to form hooks directed downward, and these tips 10A and 11A.
A is configured to be locked to the main rebars 51 and 52 of the rebar cage 50 from above.
【００２７】主鉄筋用連結筋１０，１１、縦連結筋２０
及び間隔保持筋３０は長手方向に複数配置されている。The main reinforcing bars 10, 11 and the vertical connecting bars 20
A plurality of the spacing streaks 30 are arranged in the longitudinal direction.
【００２８】図示の例においては、主鉄筋用連結筋１
０，１１、縦連結筋２０及び間隔保持筋３０の長手方向
位置が実質的に同一とされ、縦連結筋２０が上方に延在
して間隔保持筋３０と一体的に、たとえば溶接により連
結されている。In the illustrated example, the connecting bar 1 for the main reinforcing bar is used.
0, 11, the longitudinal connecting bars 20 and the spacing bars 30 have substantially the same longitudinal position, and the vertical connecting bars 20 extend upward and are integrally connected to the spacing bars 30 by, for example, welding. ing.
【００２９】鉄筋籠５０は、２本の上部主鉄筋５１と２
本の下部主鉄筋５２とを方形の角位置に配設し、これら
をスターラップ筋５４により溶接などにより組み立てた
ものである。必要により、たとえば法枠横断面の大きさ
に応じて、上部主鉄筋５１と下部主鉄筋５２との間に中
間主鉄筋５３を設ける、あるいは２本の上部主鉄筋５１
間または２本の下部主鉄筋５２間にも中間主鉄筋を設け
ることができる。The rebar basket 50 is composed of two upper main rebars 51 and 2
The lower main reinforcing bar 52 of the book is arranged at a rectangular corner position, and these are assembled by a stirrup bar 54 by welding or the like. If necessary, an intermediate main reinforcing bar 53 may be provided between the upper main reinforcing bar 51 and the lower main reinforcing bar 52, or two upper main reinforcing bars 51 may be provided, depending on the size of the cross section of the frame.
An intermediate main reinforcing bar can be provided between the two or lower main reinforcing bars 52.
【００３０】前者の高さ方向の中間主鉄筋５３を設ける
場合には、これに対応して、主鉄筋用連結筋１０または
１１と同様の主鉄筋用連結筋を設けることができる（図
示せず）。When the former intermediate main reinforcing bar 53 is provided in the height direction, a main reinforcing bar similar to the main reinforcing bar 10 or 11 can be provided correspondingly (not shown). ).
【００３１】好適な実施例の下では、図５に示されてい
るように、主鉄筋用連結筋１０，１１の先端部１０Ａ，
１０Ｂと縦連結筋２０との間の寸法を設定して、その間
に前記鉄筋籠５０の主鉄筋５１，５２が挟まれる構成と
することにより、安定性がより高まる。Under the preferred embodiment, as shown in FIG. 5, the distal ends 10A, 10A of the main reinforcing bars 10, 11 are connected.
By setting the dimension between 10B and the vertical connecting bar 20 and sandwiching the main reinforcing bars 51 and 52 of the reinforcing bar basket 50 therebetween, the stability is further improved.
【００３２】他方で、法枠構築に際しては、前記の型枠
を用い、鉄筋籠５０を予め法面上に搬入し、法面に打ち
込んだアンカー５５，５５に鉄筋籠５０を所定の高さ位
置に溶接などにより固定することにより、鉄筋籠５０を
組立てた後、前記型枠を上方から被せる。この際に、主
鉄筋用連結筋１０，１１のフック状先端部１０Ａ，１１
Ａを、鉄筋籠５０の主鉄筋５１，５２に上方から係止さ
せる。その後、前記有孔板間１，１の空間に、図１２に
示すように、モルタルまたはコンクリートなどの硬化材
Ｍを充填する。On the other hand, when constructing the sill, the squirrel cage 50 is transported in advance onto the slope by using the above-mentioned formwork, and the squirrel cage 50 is placed at the predetermined height at the anchors 55, 55 which are driven into the slope. After assembling the reinforcing bar cage 50 by welding or the like, the mold is covered from above. At this time, the hook-shaped tip portions 10A, 11A of the main reinforcing bars 10, 11 are connected.
A is locked to the main reinforcing bars 51 and 52 of the reinforcing bar cage 50 from above. Thereafter, the space between the perforated plates 1 and 1 is filled with a hardening material M such as mortar or concrete as shown in FIG.
【００３３】図６に示されているように、縦連結筋２０
が上方に延在して間隔保持筋３０と一体的に、たとえば
溶接により連結されておらず、単に主鉄筋用連結筋１
０，１１相互を連結する参考例を示す。As shown in FIG.
Extend upward and are not integrally connected to the spacing bars 30, for example, by welding, and are simply connected to the main reinforcing bars 1.
A reference example in which 0 and 11 are connected to each other is shown.
【００３４】図７及び図８は間隔保持筋３０を設けない
比較例を示すものである。この場合には、有孔板１，１
を法面上に設置する場合において、図８の破線及び仮想
線で示すように、位置ずれを生じ、有孔板１，１の間隔
を正確に保持できない結果を往々にして招く。FIGS. 7 and 8 show comparative examples in which the spacing streaks 30 are not provided. In this case, the perforated plates 1, 1
In the case where is installed on the slope, as shown by the dashed line and the imaginary line in FIG. 8, a positional shift occurs, which often results in that the interval between the perforated plates 1 and 1 cannot be accurately maintained.
【００３５】しかるに、間隔保持筋３０を設けて、有孔
板１，１相互を最大限離間させるようにすると、有孔板
１，１が設計上の間隔保持筋３０長さ分だけ離間して目
的の間隔を保持できる。However, when the spacing plates 30 are provided to allow the perforated plates 1 and 1 to be separated from each other as much as possible, the perforated plates 1 and 1 are separated by the length of the designed spacing plates 30. The desired interval can be maintained.
【００３６】他の参考例として、図９に示すように、間
隔保持筋３０と主鉄筋用連結筋１０，１１及び縦連結筋
２０との位置をずらす例を挙げることができる。この場
合には、同図から容易に推測されるように、間隔保持筋
３０と主鉄筋用連結筋１０，１１及び縦連結筋２０との
間で、疑似四角形が形成され、有孔板１，１を長手方向
に移動させるとしても、動かない型枠を形成できる。As another reference example, as shown in FIG. 9, there can be mentioned an example in which the positions of the spacing reinforcing bar 30, the main reinforcing bar connecting bars 10, 11 and the vertical connecting bar 20 are shifted. In this case, as can be easily guessed from the figure, a pseudo-rectangle is formed between the spacing bars 30 and the connecting bars 10 and 11 for the main reinforcing bars and the vertical connecting bars 20, and the perforated plates 1 and 2 are formed. Even if 1 is moved in the longitudinal direction, a stationary form can be formed.
【００３７】他方で、図６の参考例では、主鉄筋用連結
筋１０，１１及び縦連結筋２０が、間隔保持筋３０と縁
切りされているので、主鉄筋用連結筋１０，１１及び縦
連結筋２０が一体で、個別に、主鉄筋用連結筋１０，１
１の連結端部を支点として回転してしまい安定しない。On the other hand, in the reference example of FIG. 6, since the connecting bars 10 and 11 for the main reinforcing bars and the vertical connecting bars 20 are cut off from the spacing bars 30, the connecting bars 10 and 11 for the main reinforcing bars and the vertical connecting bars are used. The rebars 20 are integrated and individually connected to the main rebar connecting bars 10,1.
It is not stable because it rotates with the connection end of 1 as a fulcrum.
【００３８】そこで、図１０に示す参考例では、第２縦
連結筋２１を、間隔保持筋３０と、主鉄筋用連結筋１
０，１１の少なくとも一方（図示例では両方）に溶接な
どにより一体化させたものである。Therefore, in the reference example shown in FIG. 10, the second vertical connecting bar 21 is divided into the spacing holding bar 30 and the main reinforcing bar connecting bar 1.
At least one (both in the illustrated example) of 0 and 11 is integrated by welding or the like.
【００３９】また、図２〜図５の実施例における縦連結
筋２０は、主鉄筋用連結筋１０，１１及び間隔保持筋３
０相互を一体化する機能のほか、主鉄筋５１，５２を先
端部１０Ａ，１０Ｂとの間に挟む状態で係止する機能も
ある。The vertical connecting bars 20 in the embodiment shown in FIGS. 2 to 5 are connected to the connecting bars 10 and 11 for the main reinforcing bars and the spacing bars 3.
In addition to the function of integrating the two, there is also a function of locking the main rebars 51 and 52 in a state of being sandwiched between the distal ends 10A and 10B.
【００４０】そこで、図１１に示す参考例では、縦連結
筋２２は主鉄筋用連結筋１０，１１及び間隔保持筋３０
相互を一体化する機能のみとし、その代わりに、主鉄筋
用連結筋１０，１１の中間に下方に向かう係止筋１０
Ｂ，１１Ｂを一体化させて、これと先端部１０Ａ，１０
Ｂとの間で主鉄筋５１，５２を挟む状態で係止するよう
に構成したものである。Therefore, in the reference example shown in FIG. 11, the vertical connecting bars 22 are the connecting bars 10 and 11 for the main reinforcing bars and the spacing bars 30.
It has only the function of integrating each other, and instead, the locking bar 10 which extends downward between the connecting bars 10 and 11 for the main reinforcing bar.
B and 11B are integrated, and this and the tip portions 10A and 10B.
B and the main reinforcing bars 51 and 52 are held therebetween.
【００４１】本発明において、有孔板１としては、クリ
ンプ金網や溶接金網などの金網のほか、パンチングメタ
ル、エキスパンドメタル、その他孔開き木板、プラスチ
ック板なども用いることができる。In the present invention, as the perforated plate 1, in addition to a wire mesh such as a crimp wire mesh and a welded wire mesh, a punched metal, an expanded metal, other perforated wood plates, a plastic plate, and the like can be used.
【００４２】また、型枠は全体を工場生産しておくこと
が望ましいが、有孔板１，１を予め工場生産しておき、
必要な間隔保持筋３０、主鉄筋用連結筋１０，１１及び
縦連結筋２０類は法面の現場で組み立てることができ
る。It is desirable that the entire formwork be manufactured in a factory, but the perforated plates 1 and 1 are manufactured in advance in a factory.
Necessary spacing reinforcing bars 30, connecting bars 10 and 11, and vertical connecting bars 20 for main reinforcing bars can be assembled on the slope site.
【００４３】[0043]
【発明の効果】以上のとおり、本発明によれば、作業性
の向上の観点から有効な鉄筋先組用型枠の利点を担保し
ながら、充填材に対してより優れた安定性を示し、基本
的には型枠を鉄筋籠上に設置するのみで直ちに硬化材の
吹付または打設に移行でき、この点で作業性に優れ、し
かも、型枠の位置決めを著しく正確に行うことができ
る。As described above, according to the present invention, while exhibiting the advantage of the effective form for reinforcing the pre-assembly of reinforcing bars from the viewpoint of improving workability, the present invention shows more excellent stability with respect to the filler. Basically, it is possible to immediately shift to spraying or pouring of a hardening material simply by placing the form on the reinforcing bar cage. In this respect, workability is excellent, and positioning of the form can be performed extremely accurately.
【図１】従来例（先行技術例）の横断面図である。FIG. 1 is a cross-sectional view of a conventional example (prior art example).
【図２】型枠の斜視図である。FIG. 2 is a perspective view of a mold.
【図３】鉄筋籠の斜視図である。FIG. 3 is a perspective view of a reinforcing bar cage.
【図４】組み込み状態の斜視図である。FIG. 4 is a perspective view of an assembled state.
【図５】法面上の組立状態横断面図である。FIG. 5 is a cross-sectional view of an assembled state on a slope.
【図６】参考例の法面上の組立状態横断面図である。FIG. 6 is a cross-sectional view of an assembled state on a slope of the reference example.
【図７】比較例の法面上の組立状態横断面図である。FIG. 7 is a cross-sectional view of an assembled state on a slope of a comparative example.
【図８】その平面図である。FIG. 8 is a plan view thereof.
【図９】参考例の法面上の組立状態の平面図である。FIG. 9 is a plan view of an assembled state on a slope of the reference example.
【図１０】別の参考例の法面上の組立状態の平面図であ
る。FIG. 10 is a plan view of an assembled state on a slope of another reference example.
【図１１】さらに別の参考例の法面上の組立状態の平面
図である。FIG. 11 is a plan view of an assembling state on a slope of still another reference example.
【図１２】法枠構築状態の横断面図である。FIG. 12 is a cross-sectional view of a legal frame construction state.
１…有孔板、１０，１１…主鉄筋用連結筋、１０Ａ，１
１Ａ…先端（部）、１０Ｂ，１１Ｂ…係止筋、２０，２
２…縦連結筋、２１…第２縦連結筋、３０…間隔保持
筋、５０…鉄筋籠、５１，５２，５３…主鉄筋、５４…
スターラップ筋、５５…アンカー、Ｍ…硬化材。DESCRIPTION OF SYMBOLS 1 ... Perforated plate, 10, 11 ... Connection bar for main reinforcing bars, 10A, 1
1A: tip (part), 10B, 11B: locking bar, 20, 2
2 ... vertical connecting bars, 21 ... second vertical connecting bars, 30 ... spacing bars, 50 ... reinforcing bars, 51, 52, 53 ... main reinforcing bars, 54 ...
Stirrup streaks, 55: anchor, M: hardened material.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 杉山 好司 東京都千代田区九段北４丁目２番35号 ライト工業株式会社内 (72)発明者 大後 猛男 東京都千代田区九段北４丁目２番35号 ライト工業株式会社内 (72)発明者 木間 正夫 東京都千代田区九段北４丁目２番35号 ライト工業株式会社内 (72)発明者 武蔵 栄秋 東京都千代田区九段北４丁目２番35号 ライト工業株式会社内 (72)発明者 近藤 巻広 東京都千代田区九段北４丁目２番35号 ライト工業株式会社内 (72)発明者 横田 弘一 東京都千代田区九段北４丁目２番35号 ライト工業株式会社内 (72)発明者 庭田 和之 東京都千代田区九段北４丁目２番35号 ライト工業株式会社内 (72)発明者 西村 淳 東京都千代田区九段北４丁目２番35号 ライト工業株式会社内 (72)発明者 横山 亘 東京都千代田区九段北４丁目２番35号 ライト工業株式会社内 (72)発明者 上見 拓也 東京都千代田区九段北４丁目２番35号 ライト工業株式会社内 (72)発明者 山根 智之 東京都千代田区九段北４丁目２番35号 ライト工業株式会社内 (72)発明者 水谷 嘉徳 名古屋市千種区千種二丁目10番12号 伊 勢屋金網工業株式会社内 (72)発明者 水谷 徳五郎 名古屋市千種区千種二丁目10番12号 伊 勢屋金網工業株式会社内 (72)発明者 水谷 吉伸 名古屋市千種区千種二丁目10番12号 伊 勢屋金網工業株式会社内 (56)参考文献 特開 平２−209523（ＪＰ，Ａ) 特開 平３−103533（ＪＰ，Ａ) 特開 平６−128968（ＪＰ，Ａ) 実開 平１−105646（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) E02D 17/20 104 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Yoshiji Sugiyama 4-35, Kudankita, Chiyoda-ku, Tokyo Light Industry Co., Ltd. (72) Takeo Ohgo 4-2-2, Kudankita, Chiyoda-ku, Tokyo 35 Light Industry Co., Ltd. (72) Inventor Masao Kikuma 4-2-2 Kudankita, Chiyoda-ku, Tokyo 35 Light Industry Co., Ltd. (72) Eiji Musashi 4-2-2 Kudankita, Chiyoda-ku, Tokyo No. 35 Inside Light Industry Co., Ltd. (72) Makihiro Kondo 4-2-2-5 Kudankita, Chiyoda-ku, Tokyo Light Industry Co., Ltd. (72) Koichi Yokota 4-2-235 Kudankita, Chiyoda-ku, Tokyo No. Light Industry Co., Ltd. (72) Inventor Kazuyuki Niwata 4-2-2-5 Kudankita, Chiyoda-ku, Tokyo Light Industry Co., Ltd. (72) Inventor Jun Nishimura Sento Tokyo Light Industrial Co., Ltd., 4-35, Kudankita 4-chome, Ta-ku (72) Inventor Wataru Yokoyama 4-35, Kudokuta-ku, Chiyoda-ku, Tokyo Light Incorporated (72) Inventor Takuya Uemi Chiyoda, Tokyo 4-2-35 Kudankita-ku, Light Industry Co., Ltd. (72) Inventor Tomoyuki Yamane 4-2-235 Kudankita, Chiyoda-ku, Tokyo Light Industry Co., Ltd. (72) Yoshinori Mizutani Chikusa, Chikusa-ku, Nagoya-shi 2-10-12 Iseya Wire Mesh Kogyo Co., Ltd. 2-10-12 Chikusa, Chikusa-ku Iseya Wire Mesh Industry Co., Ltd. (56) References JP-A-2-209523 (JP, A) JP-A-3-103533 (JP, A) JP-A-6-128968 (JP, A) Japanese Utility Model Hei 1-105646 (JP, U) (58) Field surveyed (Int. Cl. 7 , DB name) E02D 17/20 104
Claims (3)
及び下の左右に位置する下側主鉄筋５２，５２、並びに
スターラップ筋５４を有する鉄筋籠５０を所定位置に先
に配置し、その両側の左右に有孔板１，１を設置する鉄
筋先組用型枠において、 各有孔板１，１の少なくとも上下２段に、鉄筋籠５０側
に延在する上側及び下側主鉄筋用連結筋１０，１１が対
応する有孔板１１に固定され、 これらの主鉄筋用連結筋１０，１１が縦連結筋２０によ
り一体的に連結され、 前記スターラップ筋５４よりも上方に、前記左右の有孔
板１，１を連結する間隔保持筋３０が設けられ、 前記主鉄筋用連結筋１０，１１及び前記間隔保持筋３０
の各両端は前記有孔板１，１との間で鉛直軸周りに回転
可能に連結され、 前記上側及び下側主鉄筋用連結筋１０，１１は、それぞ
れ先端部が下方に向かうフック状をなし、これらの先端
部が前記上側主鉄筋５１，５１及び下側主鉄筋５２，５
２に上方から係止されるように構成され、 前記縦連結筋２０が上方に延在して前記間隔保持筋３０
と一体的に連結され、 前記主鉄筋用連結筋１０，１１、縦連結筋２０及び間隔
保持筋３０は長手方向に複数配置されていることを特徴
とする鉄筋先組用型枠。An upper main reinforcing bar (51) located on the upper left and right sides.
And a lower reinforcing bar 52 having left and right lower main reinforcing bars 52 and 52 and a stirrup bar 54 are first arranged at predetermined positions, and perforated plates 1 and 1 are installed on the left and right sides on both sides thereof. In the assembling formwork, the upper and lower main reinforcing bar connecting bars 10 and 11 extending toward the reinforcing bar cage 50 are fixed to the corresponding perforated plates 11 at least in two stages above and below each of the perforated plates 1 and 1. The connecting bars 10 and 11 for the main reinforcing bars are integrally connected by a vertical connecting bar 20. Above the stirrup bar 54, a spacing holding bar 30 connecting the left and right perforated plates 1 and 1 is provided. The main reinforcing bar connecting bars 10 and 11 and the spacing bars 30 are provided.
Both ends of the upper and lower perforated plates 1 and 1 are rotatably connected around a vertical axis. The upper and lower main reinforcing bar connecting bars 10 and 11 each have a hook-like shape in which the tip ends downward. None, these tips are connected to the upper main reinforcing bars 51, 51 and the lower main reinforcing bars 52, 5
2 is configured to be locked from above, and the vertical connecting bars 20 extend upward and the spacing holding bars 30
A plurality of the connecting bars for main reinforcing bars 10, 11, the vertical connecting bars 20, and the spacing bars 30 are arranged in the longitudinal direction.
１の各フック状先端と縦連結筋２０との間に前記上側主
鉄筋５１，５１及び下側主鉄筋５２，５２が挟まれる構
成とした請求項１記載の鉄筋先組用型枠。2. The connecting bars 10, 1 for the upper and lower main reinforcing bars.
2. The rebar leading assembly formwork according to claim 1, wherein the upper main rebars 51, 51 and the lower main rebars 52, 52 are sandwiched between each hook-shaped tip and the vertical connecting bar 20.
連結筋２１を設け、前記第２縦連結筋２１は間隔保持筋
２０と主鉄筋用連結筋１０，１１のいずれか一つとを一
体的に連結してある請求項１記載の鉄筋先組用型枠。3. A second vertical connecting bar 21 is provided on the perforated plate 1 side of the vertical connecting bar 20, and the second vertical connecting bar 21 is one of the spacing maintaining bar 20 and the connecting bars 10 and 11 for main reinforcing bars. The formwork for rebar preassembly according to claim 1, wherein the one form and the one form are integrally connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7033645A JP3058809B2 (en) | 1995-02-22 | 1995-02-22 | Reinforcing bar formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7033645A JP3058809B2 (en) | 1995-02-22 | 1995-02-22 | Reinforcing bar formwork |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08226129A JPH08226129A (en) | 1996-09-03 |
| JP3058809B2 true JP3058809B2 (en) | 2000-07-04 |
Family
ID=12392189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7033645A Expired - Lifetime JP3058809B2 (en) | 1995-02-22 | 1995-02-22 | Reinforcing bar formwork |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3058809B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098763C (en) * | 1995-07-25 | 2003-01-15 | 旭化成株式会社 | Process for molding synthetic resins |
| US9962861B2 (en) | 2011-06-28 | 2018-05-08 | Tctech Sweden Ab | Device and method for heating a mould or tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110344545B (en) * | 2019-07-06 | 2024-04-30 | 中交三公局第一工程有限公司 | Adjustable screw rod for controlling thickness of pier column reinforcement protection layer |
| CN114837424B (en) * | 2021-02-01 | 2024-03-15 | 广东博智林机器人有限公司 | Reinforcement cage forming and positioning equipment and reinforcement cage forming machine |
| CN113756341A (en) * | 2021-09-22 | 2021-12-07 | 中交一公局第一工程有限公司 | Construction method and device for pouring slope rimstone and herringbone framework |
| CN114054651B (en) * | 2021-11-27 | 2023-05-30 | 中铁隧道集团二处有限公司 | Modularized device of plane precast pier reinforcement cage and rectangular reinforcement cage manufacturing method |
-
1995
- 1995-02-22 JP JP7033645A patent/JP3058809B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098763C (en) * | 1995-07-25 | 2003-01-15 | 旭化成株式会社 | Process for molding synthetic resins |
| US9962861B2 (en) | 2011-06-28 | 2018-05-08 | Tctech Sweden Ab | Device and method for heating a mould or tool |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08226129A (en) | 1996-09-03 |
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