JP2001279810A - Placed form for haunch beam and fabricating method thereof - Google Patents
Placed form for haunch beam and fabricating method thereofInfo
- Publication number
- JP2001279810A JP2001279810A JP2000092919A JP2000092919A JP2001279810A JP 2001279810 A JP2001279810 A JP 2001279810A JP 2000092919 A JP2000092919 A JP 2000092919A JP 2000092919 A JP2000092919 A JP 2000092919A JP 2001279810 A JP2001279810 A JP 2001279810A
- Authority
- JP
- Japan
- Prior art keywords
- formwork
- plate
- haunch
- bottom plate
- steel
- 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.)
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、鉄筋コンクリート
造ないし鉄骨鉄筋コンクリート造の建物の施工に際して
その梁を形成するために用いる打込型枠、特にハンチ梁
を形成するための鋼板折板製の打込型枠に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving form used for forming a beam in the construction of a reinforced concrete or steel-framed reinforced concrete building, and more particularly to a driving method of forming a folded steel plate for forming a haunched beam. For formwork.
【０００２】[0002]
【従来の技術】梁端部に垂直方向の斜めハンチ（垂直ハ
ンチといわれる場合もある）を設けることで梁端部の梁
成を中間部よりも漸次大きくするハンチ梁の施工に際し
ては、梁成が全長にわたって同一とされる単純な梁の場
合に比べて型枠工事が複雑とならざるを得ない。図９は
在来型枠工法によりハンチ梁を施工する場合の例であ
り、梁端部においては側型枠１の下部を斜めに加工する
とともに、底型枠２はハンチ部の形状に対応させて傾斜
させ、その傾斜に応じて支保工３の高さ調節も必要であ
る。また、側型枠にはコンクリート打設時の側圧に対す
る胴締め金物が必要であるし、それを組み立てるための
手間を要する。2. Description of the Related Art When constructing a haunched beam in which a beam at the beam end is gradually increased from an intermediate portion by providing a vertical diagonal haunch (sometimes called a vertical haunch) at the beam end. However, compared to the case of a simple beam having the same length over the entire length, the formwork work must be complicated. FIG. 9 shows an example in which a haunched beam is constructed by a conventional formwork method. At the beam end, the lower part of the side formwork 1 is processed diagonally, and the bottom formwork 2 is made to correspond to the shape of the haunch part. It is necessary to adjust the height of the support 3 in accordance with the inclination. In addition, the side formwork requires a body fastener for the side pressure at the time of concrete casting, and also requires time and labor to assemble it.
【０００３】ところで、近年においては、型枠工事の合
理化や合板等の天然資材の節減、建築廃材の削減等を主
たる目的として、型枠を解体することなくそのまま残置
する打込型枠工法が一般化しており、特に型枠材として
鋼製折板いわゆるキーストンプレートを用いるものが広
く普及しつつある。そのような鋼製折板製の梁用打込型
枠は、矩形平板状の鋼製折板をＵ形断面に折り曲げ加工
することで容易にかつ安価に製作されるものであり、こ
れを用いれば在来工法のように現場での型枠組み立てや
解体が一切不要であるし、梁側面の胴締めやセパレータ
ーを省略できるので極めて有効なものである。[0003] In recent years, for the main purposes of streamlining of formwork construction, saving of natural materials such as plywood, and reduction of construction waste materials, a driving form method in which a form is left without being dismantled is generally used. In particular, those using a steel folded plate, a so-called keystone plate, as a formwork material are becoming widespread. Such a steel driven plate beam forming form is easily and inexpensively manufactured by bending a rectangular flat plate-shaped folded steel plate into a U-shaped cross section. This method is extremely effective because there is no need to assemble or disassemble the formwork on site as in the conventional construction method, and the body can be tightened on the side of the beam and the separator can be omitted.
【０００４】そのような鋼製折板製の打込型枠を上記の
ような斜めハンチを有するハンチ梁を施工するに際して
も採用できれば良いのであるが、斜めハンチを形成する
ためには鋼製折板を複雑な形状に切断したり折り曲げ加
工する必要があり、したがって単純な梁用打込型枠のよ
うに鋼製折板を単に折り曲げることでは製作できないの
で必然的にコスト高となり、したがって現時点ではハン
チ梁施工用の鋼製折板製の打込型枠は実用化されていな
いのが実状である。[0004] It is sufficient if such a punched formwork made of a steel folded plate can be adopted when constructing a haunched beam having an oblique haunch as described above. It is necessary to cut or bend the plate into a complicated shape, and therefore it cannot be manufactured simply by bending a steel folded plate like a simple form for driving a beam. It is the actual situation that a driving formwork made of a steel folded plate for haunch beam construction has not been put to practical use.
【０００５】そのため、ハンチ梁の施工は依然として在
来型枠工法によることが通常であるし、敢えて鋼製折板
製の打込型枠を用いる場合にはたとえば図１０あるいは
図１１に示すような工法を採用せざるを得ない。図１０
に示す工法は、梁中間部の打込型枠４の両端側に、それ
よりも高さ寸法の大きい梁端部の打込型枠５を連結し、
梁端部の梁底に段部６を設けることで斜めハンチではな
くいわゆるドロップハンチを設けるようにしたものであ
る。図１１に示す工法は図１０に示した梁端部の打込型
枠５の内部にさらに底型枠７を傾斜させて取り付けるこ
とで斜めハンチを形成するようにしたものである。[0005] Therefore, the construction of the haunched beam is still usually performed by the conventional formwork method, and when a punched formwork made of a folded steel plate is used, for example, as shown in FIG. 10 or FIG. We have to adopt a construction method. FIG.
The method shown in Fig. 1 connects the driving form 5 at the beam end with a larger height dimension to both ends of the driving form 4 in the middle of the beam,
By providing the step portion 6 at the beam bottom at the beam end, a so-called drop haunch is provided instead of an oblique haunch. The construction method shown in FIG. 11 is such that a slanted haunch is formed by further attaching the bottom formwork 7 inside the driving formwork 5 at the beam end shown in FIG.
【０００６】[0006]
【発明が解決しようとする課題】しかし、図１０に示す
工法では設計上は斜めハンチで良いにも拘わらずドロッ
プハンチを形成することになるので、無駄なコンクリー
ト打設を行うことになって不合理である。また、図１１
に示す工法では無駄なコンクリート打設はなくせるもの
の、打込型枠５の他に底型枠７を用意してそれを取り付
ける手間と費用を必要とし、しかも外観上は図１０の場
合と同様のドロップハンチとなるので好ましくない場合
がある。However, in the construction method shown in FIG. 10, a drop haunch is formed in spite of the fact that a slant haunch is sufficient in design, so that unnecessary concrete casting is performed. It is reasonable. FIG.
Although it is possible to eliminate useless concrete casting by the construction method shown in FIG. 1, the labor and cost for preparing the bottom formwork 7 in addition to the driving formwork 5 and mounting it are required, and the appearance is similar to that of FIG. It may not be preferable because it becomes a drop haunch.
【０００７】上記事情に鑑み、本発明は、斜めハンチを
有するハンチ梁を施工するに際してそのまま使用し得る
有効な鋼製折板製の打込型枠と、その打込型枠の有効な
製作方法を提供することを目的としている。[0007] In view of the above circumstances, the present invention provides an effective steel folded plate driving formwork that can be used as it is when constructing a haunched beam having an oblique haunch, and an effective method of manufacturing the driving formwork. It is intended to provide.
【０００８】[0008]
【課題を解決するための手段】請求項１の発明は、端部
に斜めハンチを有する鉄筋コンクリート造ないし鉄骨鉄
筋コンクリート造のハンチ梁を形成するためのＵ形断面
をなす鋼板折板製の打込型枠であって、前記ハンチ梁の
中間部を形成するための中間型枠部と、該中間型枠部の
端部に連結されて前記ハンチ梁の端部を形成するための
ハンチ型枠部とからなり、前記中間型枠部は鋼製折板が
折り曲げ加工されることで両側板と底板とが一体をなし
ており、前記ハンチ型枠部は鋼製折板からなる対の側板
の下端相互間に平鋼板からなる底板が連結されて形成さ
れており、該ハンチ型枠部を構成している前記側板には
その下端部が前記斜めハンチの形状に対応して内側に折
り曲げられることで折曲部が形成されているとともに、
前記底板にはその両側縁部が上方に折り曲げられること
で立ち上がり部が形成されていて、前記側板の折曲部を
前記底板上に重ね合わせかつ前記底板の立ち上がり部を
前記側板の下端部に重ね合わせた状態でそれら側板と底
板とが連結されることで前記ハンチ型枠部が構成されて
なるものである。SUMMARY OF THE INVENTION The invention of claim 1 is a stamping die made of a folded steel plate having a U-shaped cross section for forming a reinforced concrete or steel reinforced concrete haunch beam having an oblique haunch at an end. A frame, an intermediate form part for forming an intermediate part of the haunch beam, and a haunch form part connected to an end of the intermediate form part to form an end of the haunch beam. The intermediate form part is formed by bending a steel folded plate so that both side plates and the bottom plate are integrated with each other, and the haunch form part is formed by a lower end of a pair of side plates made of a steel folded plate. A bottom plate made of a flat steel plate is connected between the side plates, and the lower end of the side plate forming the haunch formwork is bent inward in accordance with the shape of the slanted haunch. While a curved part is formed,
A rising portion is formed by bending both side edges of the bottom plate upward, and a bent portion of the side plate is overlapped on the bottom plate, and a rising portion of the bottom plate is overlapped on a lower end portion of the side plate. The haunch formwork is formed by connecting the side plates and the bottom plate together.
【０００９】請求項２の発明は、請求項１の発明のハン
チ梁用打込型枠であって、前記ハンチ型枠部と前記中間
型枠部とはそれらの双方に跨るように装着されたジョイ
ントプレートを介して連結され、かつそれらハンチ型枠
部と中間型枠部の双方の側板の上縁部には当該打込型枠
の全長にわたってランナー金物が装着されてなるもので
ある。According to a second aspect of the present invention, there is provided the hammer beam driving formwork according to the first aspect, wherein the haunch formwork and the intermediate formwork are mounted so as to straddle both of them. It is connected via a joint plate, and runner hardware is attached to the upper edges of the side plates of both the haunched formwork and the intermediate formwork over the entire length of the driving formwork.
【００１０】請求項３の発明は、請求項１または２の発
明のハンチ梁用打込型枠を製作する方法であって、鋼製
折板をＵ形断面に折り曲げて前記中間型枠部を形成する
一方、鋼製折板からなる対の側板の下端部をそれぞれ内
側に折り曲げて折曲部を形成するとともに、平鋼板から
なる底板の両側縁部を上方に折り曲げて立ち上がり部を
形成し、前記側板の折曲部を前記底板上に重ね合わせか
つ前記底板の立ち上がり部を前記側板の下端部に重ね合
わせた状態でそれら側板と底板とを連結してハンチ型枠
部を形成し、該ハンチ型枠部を前記中間型枠部の端部に
連結するものである。According to a third aspect of the present invention, there is provided a method of manufacturing the hammer beam driving formwork according to the first or second aspect, wherein the intermediate formwork portion is formed by bending a folded steel plate into a U-shaped cross section. On the other hand, the lower end portions of the pair of side plates made of steel folded plates are bent inward to form bent portions, and both side edges of the bottom plate made of flat steel plates are bent upward to form rising portions, The side plate and the bottom plate are connected to each other while the bent portion of the side plate is overlapped on the bottom plate and the rising portion of the bottom plate is overlapped with the lower end of the side plate to form a haunch formwork. The mold section is connected to an end of the intermediate mold section.
【００１１】[0011]
【発明の実施の形態】図１および図２は本発明の実施形
態であるハンチ梁用打込型枠１０（以下、単に打込型枠
１０と略す）の一端部を示す図であり、図３〜図８はこ
の打込型枠１０の製作手順を示すものである。1 and 2 are views showing one end of a hammer beam driving formwork 10 (hereinafter simply abbreviated as a driving formwork 10) according to an embodiment of the present invention. FIGS. 3 to 8 show a procedure for manufacturing the driving formwork 10. As shown in FIG.
【００１２】本実施形態の打込型枠１０は、ハンチ梁の
中間部の梁成が均一な範囲を形成するための中間型枠部
１１と、斜めハンチを形成するためのハンチ型枠部１２
とからなる。The driving formwork 10 of the present embodiment has an intermediate formwork 11 for forming a uniform range of beam formation at an intermediate portion of the haunch beam, and a haunch formwork 12 for forming an oblique haunch.
Consists of
【００１３】中間型枠部１１はこれ自体が図１０および
図１１に示した従来一般の鋼製折板製の打込型枠４と同
様のもので、平板状の鋼製折板が単に折り曲げ加工され
ることで、両側板１３と底板１４とが一体をなすＵ形断
面形状とされたものである。The intermediate form 11 is itself similar to the conventional form 4 made of a steel folded plate shown in FIGS. 10 and 11, and a flat steel plate is simply bent. By being processed, the side plates 13 and the bottom plate 14 have a U-shaped cross-sectional shape that is integrated.
【００１４】ハンチ型枠部１２は、鋼製折板からなる対
の側板１５と、その下端相互間に連結された平鋼板から
なる底板１６とにより構成されているものである。側板
１５はその下端部が形成するべき斜めハンチの形状に対
応して内側に折り曲げられることで形成された折曲部１
５ａを有しており、底板１６にはその両側縁部が上方に
折り曲げられることで立ち上がり部１６ａが形成されて
いる。そして、側板１５の折曲部１５ａを底板１６上に
重ね合わせ、かつ同時に底板１６の立ち上がり部１６ａ
を側板１５の下端部に重ね合わせた状態で、それら側板
１５と底板１６とを相互にビス止めあるいはスポット溶
接もしくはそれらの併用により連結することにより、形
成するべき斜めハンチの形状に対応する形態のハンチ型
枠部１２が構成されている。The haunch formwork portion 12 is composed of a pair of side plates 15 made of a folded steel plate and a bottom plate 16 made of a flat steel plate connected between lower ends thereof. The side plate 15 has a bent portion 1 formed by being bent inward corresponding to the shape of the slant haunch to be formed at the lower end thereof.
5a, and the bottom plate 16 has a rising portion 16a formed by bending both side edges upward. Then, the bent portion 15a of the side plate 15 is overlapped on the bottom plate 16, and at the same time, the rising portion 16a of the bottom plate 16
In a state corresponding to the shape of the oblique haunch to be formed by connecting the side plate 15 and the bottom plate 16 to each other by screwing or spot welding or a combination thereof in a state where the side plate 15 is overlapped with the lower end of the side plate 15. The haunch formwork 12 is configured.
【００１５】上記のハンチ型枠部１２は上記の中間型枠
部１１の両端部にジョイントプレート１７を介して一体
に連結されるようになっている。すなわち、中間型枠部
１１とハンチ型枠部１２の側板１３，１５相互間には鋼
板からなるジョイントプレート１７が跨るように重ねら
れて装着され、そのジョイントプレート１７が双方の側
板１３，１５に対してビス止めあるいは溶接（もしくは
それらの併用）されることにより、中間型枠部１１とハ
ンチ型枠部１２とが強固に連結されて一体化せしめら
れ、かつそれらの間に隙間が生じることが防止されるよ
うになっている。なお、図示例のものではハンチ型枠部
１２の底板１６の一端部を中間型枠部１１側に延出せし
めてその延出部１６ｂが梁底部のジョイントプレートを
兼ねるものとしており、その延出部１６ｂを中間型枠部
１１の底板１４に重ねてビス止めあるいは溶接（もしく
はそれらの併用）されるようになっている。そして、そ
のように一体に連結された中間型枠部１１とハンチ型枠
部１２との双方の側板１３，１５の上縁部には、この打
込型枠１０の全長にわたってランナー金物１８が装着さ
れて補強されている。The haunch form 12 is integrally connected to both ends of the intermediate form 11 via a joint plate 17. That is, a joint plate 17 made of a steel plate is mounted so as to be straddled between the side plates 13 and 15 of the intermediate form part 11 and the haunch form part 12, and the joint plate 17 is attached to both side plates 13 and 15. On the other hand, by being screwed or welded (or a combination thereof), the intermediate form part 11 and the haunch form part 12 are firmly connected and integrated, and a gap is formed between them. Is to be prevented. In the illustrated example, one end of the bottom plate 16 of the haunch form 12 is extended toward the intermediate form 11 so that the extension 16b also serves as a joint plate at the bottom of the beam. 16b is put on the bottom plate 14 of the intermediate form part 11 and screwed or welded (or a combination thereof). The runner hardware 18 is attached to the upper edges of the side plates 13 and 15 of both the intermediate form 11 and the haunch form 12 that are integrally connected in this manner over the entire length of the driving form 10. Has been reinforced.
【００１６】上記構成の打込型枠１０の製作手順を図３
〜図８を参照して説明する。まず、図３に示すようにハ
ンチ型枠部１２の側板１５となる２枚の矩形平板状の鋼
製折板を用意し、それらの下端部に斜めに折曲線を入
れ、それに沿って下端部を内側に折り曲げることで折曲
部１５ａを形成する。この際、両側の側板１５の折曲部
１５ａどうしが直接的に重なってしまうことのないよう
に留意し、必要であれば余分な部分を切断除去しておく
ことでも良い。FIG. 3 shows a manufacturing procedure of the driving formwork 10 having the above structure.
This will be described with reference to FIGS. First, as shown in FIG. 3, two rectangular flat steel folded plates serving as the side plates 15 of the haunched frame 12 are prepared, and their lower ends are obliquely bent, and the lower ends are cut along the bent curves. Is bent inward to form a bent portion 15a. At this time, care should be taken so that the bent portions 15a of the side plates 15 on both sides do not directly overlap each other, and if necessary, an unnecessary portion may be cut and removed.
【００１７】一方、底板１６となる平鋼板を用意し、そ
の両側縁部を上方に折り曲げて立ち上がり部１６ａを形
成し、図４に示すように対向配置させた２枚の側板１５
の下端部にその底板１６を装着する。これにより側板１
５の折曲部１５ａが底板１６に重なり同時に底板１６の
立ち上がり部１６ａが側板１５の下端部に重なるから、
それらを適宜ビス止めあるいは溶接もしくはそれらの併
用により固定する。以上により図５に示すようなハンチ
型枠部１２が完成する。On the other hand, a flat steel plate serving as a bottom plate 16 is prepared, and both side edges thereof are bent upward to form a rising portion 16a. As shown in FIG.
The bottom plate 16 is attached to the lower end of the. Thereby, the side plate 1
5, the bent portion 15a overlaps the bottom plate 16 and the rising portion 16a of the bottom plate 16 overlaps the lower end of the side plate 15 at the same time.
They are fixed appropriately by screwing, welding or their combination. Thus, the haunch formwork 12 as shown in FIG. 5 is completed.
【００１８】上記のハンチ型枠部１２の製作と相前後し
て、あるいは並行して、中間型枠部１１を製作する。中
間型枠部１１は図１０および図１１に示した従来一般の
鋼製折板製の打込型枠４と同様に、矩形平板状の鋼製折
板をＵ形断面形状となるように折り曲げ加工することで
側板１３と底板１４を形成すれば良い。なお、従来の鋼
製折板製の打込型枠４をそのまま中間型枠部１１として
転用することも可能である。The intermediate form part 11 is manufactured before or after the production of the haunch form part 12 or in parallel therewith. The intermediate form part 11 is formed by bending a rectangular flat plate-shaped folded steel plate into a U-shaped cross-section, similarly to the conventional steel-made punched form frame 4 shown in FIGS. 10 and 11. The side plate 13 and the bottom plate 14 may be formed by processing. In addition, it is also possible to convert the conventional driving form 4 made of a steel folded plate as the intermediate form 11 as it is.
【００１９】そして、図６に示すように、中間型枠部１
１の両端部にそれぞれジョイントプレート１７を介して
ハンチ型枠部１２を連結固定し、最後に図７に示すよう
にランナー金物１８を取り付ければ打込型枠１０が完成
する。Then, as shown in FIG. 6, the intermediate form 1
The haunch formwork section 12 is connected and fixed to both ends of each 1 via a joint plate 17, and finally the runner metal fitting 18 is attached as shown in FIG.
【００２０】本実施形態の打込型枠１０は、実質的にも
外観上もドロップハンチではなく本来の斜めハンチを設
計上要求される形状どうりに支障なく形成できるもので
あるから、図１０や図１１に示した従来の打込型枠４，
５による場合のような無駄なコンクリート打設や余分な
型枠材を無くすことができ、ハンチ梁施工に係わる型枠
工事の合理化、施工性向上を十分に図ることができる。The punching formwork 10 of the present embodiment can form an original slanted haunch, not substantially a drop haunch in appearance and appearance, without any hindrance to the shape required by design. And the conventional driving formwork 4 shown in FIG.
As in the case of No. 5, wasteful concrete casting and extra formwork material can be eliminated, and formwork work related to haunch beam construction can be rationalized and workability can be sufficiently improved.
【００２１】特に本実施形態の打込型枠１０は、ハンチ
型枠部１２を鋼製折板からなる側板１５と平鋼板からな
る底板１６との連結により形成するので、所望の形状、
寸法の斜めハンチを何等支障なく容易にしかも精度良く
形成できることはもとより、それら側板１５および底板
１６にはそれぞれ折曲部１５ａと立ち上がり部１６ａと
を設けてそれらを重ね合わせた状態で連結する構成であ
るから、ハンチ型枠部１２の強度を自ずと十分に確保で
き、したがって通常の鋼製折板製の打込型枠と全く同様
に取り扱うことができるものである。Particularly, in the driving formwork 10 of the present embodiment, the haunch formwork 12 is formed by connecting the side plate 15 made of a folded steel plate and the bottom plate 16 made of a flat steel plate.
In addition to the fact that a slanted haunch of dimensions can be easily and accurately formed without any hindrance, the side plate 15 and the bottom plate 16 are provided with a bent portion 15a and a rising portion 16a, respectively, and are connected in a state where they are overlapped. Because of this, the strength of the haunch formwork portion 12 can be sufficiently ensured by itself, and therefore, the haunch formwork portion 12 can be handled in exactly the same manner as a normal steel folded plate driving formwork.
【００２２】なお、ハンチ型枠部１２の底板１６を平鋼
板ではなく鋼製折板とすることも考えられるが、その場
合は立ち上がり部１６ａと側板１５との接合が鋼製折板
どうしの接合となるので若干面倒になるし、外観も見苦
しくなるので好ましくない。また、ハンチ型枠部１２の
側板１５を鋼製折板ではなく平鋼板とすることも考えら
れるが、その場合には側型枠としての強度を十分に確保
し得ないので胴締めやセパレータが必要となり、好まし
くない。さらに、側板１５として用いる鋼製折板はその
リブの方向を中間型枠部１１と同様に上下方向に揃える
ことが外観上は好ましい。It is conceivable that the bottom plate 16 of the haunch formwork 12 is not a flat steel plate but a steel folded plate. In this case, the joint between the rising portion 16a and the side plate 15 is made by joining the steel folded plates together. , And it is not preferable because the appearance becomes unsightly. It is also conceivable that the side plate 15 of the haunch form part 12 is made of a flat steel plate instead of a folded steel plate, but in that case, the strength as the side form cannot be sufficiently secured, so that a body fastening or a separator is necessary. Is not preferred. Further, it is preferable in appearance that the ribs of the steel folded plate used as the side plate 15 are aligned in the vertical direction in the same manner as the intermediate form 11.
【００２３】[0023]
【発明の効果】請求項１の発明のハンチ梁用打込型枠
は、ハンチ梁の端部を形成するためのハンチ型枠部を有
し、そのハンチ型枠部は下端部に折曲部を有する鋼製折
板からなる側板と、両側縁部に立ち上がり部を有する平
鋼板からなる底板とを連結して構成されるものであるか
ら、斜めハンチを有するハンチ梁を設計どうりの寸法、
形状に支障なく施工することができることはもとより、
通常の鋼製折板製の打込型枠と全く同様に取り扱うこと
ができるものであり、ハンチ梁施工に係わる型枠工事の
合理化、施工性向上を十分に図ることができる。According to the first aspect of the present invention, a hammer beam driving form has a haunch form for forming an end of a haunch beam, and the haunch form has a bent portion at a lower end. Since it is configured by connecting a side plate made of a folded steel plate and a bottom plate made of a flat steel plate having a rising portion on both side edges, a haunched beam having an oblique haunch is designed according to the dimensions,
In addition to being able to perform construction without hindrance,
It can be handled in exactly the same manner as a normal steel folded-plate driving formwork, and it is possible to sufficiently streamline formwork work related to haunch beam construction and improve workability.
【００２４】請求項２の発明は、ハンチ型枠部と中間型
枠部とをジョイントプレートを介して連結し、かつ全長
にわたってランナー金物を装着しているので、ハンチ型
枠部と中間型枠部とが確実強固に一体化し、打込型枠と
して十分な強度を確保することができる。According to the second aspect of the present invention, the haunch formwork and the intermediate formwork are connected via the joint plate and the runner hardware is mounted over the entire length. Are firmly and firmly integrated, and sufficient strength can be secured as a driving formwork.
【００２５】請求項３の発明は、上記のハンチ梁用打込
型枠を製作するに際し、鋼製折板をＵ形断面に折り曲げ
て中間型枠部を形成する一方、鋼製折板からなる対の側
板の下端部をそれぞれ内側に折り曲げて折曲部を形成
し、平鋼板からなる底板の両側縁部を上方に折り曲げて
立ち上がり部を形成し、側板の折曲部を底板上に重ね合
わせかつ底板の立ち上がり部を側板の下端部に重ね合わ
せた状態でそれら側板と底板とを連結してハンチ型枠部
を形成し、そのハンチ型枠部を中間型枠部の端部に連結
するという手順を採用したから、上記のハンチ梁用打込
型枠を通常の打込型枠と同様に簡便にかつ安価に製作す
ることができる。According to a third aspect of the present invention, a steel folded plate is formed by bending a steel folded plate into a U-shaped cross-section to form an intermediate mold portion when manufacturing the above-mentioned hammer beam driving formwork. The lower ends of the pair of side plates are bent inward to form bent portions, the side edges of the bottom plate made of flat steel are bent upward to form rising portions, and the bent portions of the side plates are superimposed on the bottom plate. And, in a state where the rising portion of the bottom plate is overlapped with the lower end of the side plate, the side plate and the bottom plate are connected to form a haunched formwork portion, and the haunched formwork portion is connected to the end of the intermediate formwork portion. Since the procedure is adopted, the above-described hammer beam driving formwork can be manufactured simply and inexpensively in the same manner as a normal driving formwork.
【図１】 本発明の実施形態である打込型枠の要部を示
す斜視図である。FIG. 1 is a perspective view showing a main part of a driving formwork according to an embodiment of the present invention.
【図２】 同、側面図および正面図ならびに平面図であ
る。FIG. 2 is a side view, a front view, and a plan view of the same.
【図３】 同打込型枠の製作手順を示す図であって、ハ
ンチ型枠部の側板の製作工程を示す図である。FIG. 3 is a view showing a manufacturing procedure of the punching formwork, and is a view showing a manufacturing process of a side plate of a haunched formwork portion.
【図４】 同、側板に対する底板の取付工程を示す図で
ある。FIG. 4 is a view showing a process of attaching the bottom plate to the side plate.
【図５】 同、ハンチ型枠部が完成した状態を示す図で
ある。FIG. 5 is a view showing a state where the haunch formwork is completed.
【図６】 同、中間型枠部の両端部に対するハンチ型枠
部の連結工程を示す図である。FIG. 6 is a view showing a process of connecting a haunched formwork to both ends of the intermediate formwork.
【図７】 同、ランナー金物の取付工程を示す図であ
る。FIG. 7 is a view showing a mounting process of the runner hardware.
【図８】 同打込型枠の完成状態を示す図である。FIG. 8 is a view showing a completed state of the driving formwork.
【図９】 ハンチ梁を在来型枠工法により施工する場合
の例を示す図である。FIG. 9 is a view showing an example in which a haunch beam is constructed by a conventional formwork method.
【図１０】 ハンチ梁を従来の打込型枠により施工する
場合の例を示す図である。FIG. 10 is a view showing an example of a case where a haunched beam is constructed by a conventional driving formwork.
【図１１】 ハンチ梁を従来の打込型枠により施工する
場合の他の例を示す図である。FIG. 11 is a view showing another example of a case where a haunched beam is constructed by a conventional driving formwork.
１０ ハンチ梁用打込型枠 １１ 中間型枠部 １２ ハンチ型枠部 １３ 側板 １４ 底板 １５ 側板 １５ａ 折曲部 １６ 底板 １６ａ 立ち上がり部 １７ ジョイントプレート １８ ランナー金物 DESCRIPTION OF SYMBOLS 10 Driving form for haunch beams 11 Intermediate form part 12 Haunch form part 13 Side plate 14 Bottom plate 15 Side plate 15a Bent part 16 Bottom plate 16a Rising part 17 Joint plate 18 Runner hardware
Claims (3)
ート造ないし鉄骨鉄筋コンクリート造のハンチ梁を形成
するためのＵ形断面をなす鋼板折板製の打込型枠であっ
て、 前記ハンチ梁の中間部を形成するための中間型枠部と、
該中間型枠部の端部に連結されて前記ハンチ梁の端部を
形成するためのハンチ型枠部とからなり、 前記中間型枠部は鋼製折板が折り曲げ加工されることで
両側板と底板とが一体をなしており、 前記ハンチ型枠部は鋼製折板からなる対の側板の下端相
互間に平鋼板からなる底板が連結されて形成されてお
り、 該ハンチ型枠部を構成している前記側板にはその下端部
が前記斜めハンチの形状に対応して内側に折り曲げられ
ることで折曲部が形成されているとともに、前記底板に
はその両側縁部が上方に折り曲げられることで立ち上が
り部が形成されていて、 前記側板の折曲部を前記底板上に重ね合わせかつ前記底
板の立ち上がり部を前記側板の下端部に重ね合わせた状
態でそれら側板と底板とが連結されることで前記ハンチ
型枠部が構成されてなることを特徴とするハンチ梁用打
込型枠。1. A driving formwork made of a steel plate folded plate having a U-shaped cross section for forming a reinforced concrete or steel reinforced concrete haunch beam having an oblique haunch at an end portion, wherein an intermediate portion of the haunch beam is provided. An intermediate form part for forming
A haunched formwork portion connected to an end of the intermediate formwork portion to form an end of the haunch beam, wherein the intermediate formwork portion is formed by bending a folded steel plate to form both side plates. And the bottom plate are integrated with each other, and the haunch formwork is formed by connecting a bottom plate made of a flat steel plate between lower ends of a pair of side plates made of a steel folded plate. A bent portion is formed by bending the lower end of the side plate inward corresponding to the shape of the slanted haunch, and both side edges of the bottom plate are bent upward. A rising portion is formed by this, and the side plate and the bottom plate are connected in a state where the bent portion of the side plate is overlapped on the bottom plate and the rising portion of the bottom plate is overlapped with the lower end of the side plate. The haunch formwork is configured by Driving formwork for haunch beams.
って、 前記ハンチ型枠部と前記中間型枠部とはそれらの双方に
跨るように装着されたジョイントプレートを介して連結
され、かつそれらハンチ型枠部と中間型枠部の双方の側
板の上縁部には当該打込型枠の全長にわたってランナー
金物が装着されてなることを特徴とするハンチ梁用打込
型枠。2. The hammer beam driving formwork according to claim 1, wherein the haunch formwork and the intermediate formwork are connected via a joint plate mounted so as to straddle both of them. And a runner metal fitting is mounted on the upper edge of the side plate of both the haunched formwork and the intermediate formwork over the entire length of the hammered formwork. .
型枠を製作する方法であって、 鋼製折板をＵ形断面に折り曲げて前記中間型枠部を形成
する一方、 鋼製折板からなる対の側板の下端部をそれぞれ内側に折
り曲げて折曲部を形成するとともに、平鋼板からなる底
板の両側縁部を上方に折り曲げて立ち上がり部を形成
し、 前記側板の折曲部を前記底板上に重ね合わせかつ前記底
板の立ち上がり部を前記側板の下端部に重ね合わせた状
態でそれら側板と底板とを連結してハンチ型枠部を形成
し、該ハンチ型枠部を前記中間型枠部の端部に連結する
ことを特徴とするハンチ梁用打込型枠の製作方法。3. A method for producing a hammer beam driving formwork according to claim 1 or 2, wherein the intermediate formwork portion is formed by bending a steel folded plate into a U-shaped cross section. Bending portions are formed by bending the lower end portions of the pair of side plates made of folded plates inward, respectively, and bending both side edges of the bottom plate made of a flat steel plate upward to form rising portions. Are overlapped on the bottom plate, and the side plate and the bottom plate are connected to each other in a state where the rising portion of the bottom plate is overlapped with the lower end of the side plate to form a haunched frame portion. A method of manufacturing a hammered beam driving formwork, wherein the formwork is connected to an end of a formwork portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000092919A JP2001279810A (en) | 2000-03-30 | 2000-03-30 | Placed form for haunch beam and fabricating method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000092919A JP2001279810A (en) | 2000-03-30 | 2000-03-30 | Placed form for haunch beam and fabricating method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001279810A true JP2001279810A (en) | 2001-10-10 |
Family
ID=18608177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000092919A Withdrawn JP2001279810A (en) | 2000-03-30 | 2000-03-30 | Placed form for haunch beam and fabricating method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001279810A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005048572A (en) * | 2003-07-17 | 2005-02-24 | East Japan Railway Co | Form for concrete, and method for constructing concrete |
| WO2010074550A1 (en) * | 2008-12-23 | 2010-07-01 | Nan San Lee | Assemblage formwork |
| JP2010203215A (en) * | 2009-02-28 | 2010-09-16 | J Kenchiku Syst Kk | Method for forming circumferential underground beam, internal underground beam and post for pressure-resisting slab type grid post foundation, |
| JP2011140877A (en) * | 2011-04-22 | 2011-07-21 | Tokyu Construction Co Ltd | Reinforcement method and reinforced structure of beam |
| CN105908964A (en) * | 2016-06-14 | 2016-08-31 | 广东合迪科技股份有限公司 | Design method for building formwork system and building formwork system |
-
2000
- 2000-03-30 JP JP2000092919A patent/JP2001279810A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005048572A (en) * | 2003-07-17 | 2005-02-24 | East Japan Railway Co | Form for concrete, and method for constructing concrete |
| WO2010074550A1 (en) * | 2008-12-23 | 2010-07-01 | Nan San Lee | Assemblage formwork |
| JP2010203215A (en) * | 2009-02-28 | 2010-09-16 | J Kenchiku Syst Kk | Method for forming circumferential underground beam, internal underground beam and post for pressure-resisting slab type grid post foundation, |
| JP2011140877A (en) * | 2011-04-22 | 2011-07-21 | Tokyu Construction Co Ltd | Reinforcement method and reinforced structure of beam |
| CN105908964A (en) * | 2016-06-14 | 2016-08-31 | 广东合迪科技股份有限公司 | Design method for building formwork system and building formwork system |
| CN105908964B (en) * | 2016-06-14 | 2018-11-20 | 广东合迪科技股份有限公司 | building template system |
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