JP2003020644A - Reinforcing bar cage for cast-in-place pile and its manufacturing method - Google Patents

Reinforcing bar cage for cast-in-place pile and its manufacturing method

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Publication number
JP2003020644A
JP2003020644A JP2001206480A JP2001206480A JP2003020644A JP 2003020644 A JP2003020644 A JP 2003020644A JP 2001206480 A JP2001206480 A JP 2001206480A JP 2001206480 A JP2001206480 A JP 2001206480A JP 2003020644 A JP2003020644 A JP 2003020644A
Authority
JP
Japan
Prior art keywords
main
bar
reinforcing bar
reinforcement
hoop
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.)
Pending
Application number
JP2001206480A
Other languages
Japanese (ja)
Inventor
Shiyoutaro Anpo
彰太郎 安保
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ANBO TEKKIN KOGYO KK
Original Assignee
ANBO TEKKIN KOGYO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ANBO TEKKIN KOGYO KK filed Critical ANBO TEKKIN KOGYO KK
Priority to JP2001206480A priority Critical patent/JP2003020644A/en
Publication of JP2003020644A publication Critical patent/JP2003020644A/en
Pending legal-status Critical Current

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Landscapes

  • Piles And Underground Anchors (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a reinforcement clip suitable for respective non-welded means, a reinforcing bar cage for a cast-in-place pile using a reinforcement clamp, a reinforcement clip or a cross band, and a manufacturing method for the reinforcing bar cage for a cast-in-place pile used in the underground part in a bridge for a road, an overhead railway for a super-express train, or a high-rise building. SOLUTION: This reinforcing bar cage for the cast-in-place pile is constructed of a plurality of long main reinforcements 1 arranged along the pile axial direction, ring-type built-up bars 2 assembled to the inside of the main reinforcements 1 and arranged in the pile axial direction at fixed intervals, reinforcement clamps 4 connecting intersection parts between the built-up bars 2 and the main reinforcements 1, hoop reinforcements 3 wounded around the outside of the main reinforcements 1 and arranged at predetermined intervals in the pile axial direction, reinforcement clips 5 fixing the front end wrap parts in the hoop reinforcements 3, a cross band 6 connecting the intersection parts between the main reinforcements 1 and the hoop reinforcements 3 together, a spacer reinforcement 7 installed to the main reinforcements 1 for spacing the drilled hole and the reinforcement cage, and a spacer clip 8 for mounting the spacer reinforcement 7 to the main reinforcements 1.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、道路の橋、新幹線の高
架や高層ビル等の地下部分に使用される場所打ち杭の鉄
筋カゴ及びその製作方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing bar basket for cast-in-place piles used for underground parts such as road bridges, elevated Shinkansen bullet trains and high-rise buildings, and a method for manufacturing the same.

【0002】[0002]

【従来の技術】従来、場所打ち杭の杭は、道路の橋、新
幹線の高架や高層ビル等の地下部分の大事な所に使用し
ている。杭の大きさ、長さ、構造は、設計者が色々計算
して設計し、上部の構造物にもよるが、場所打ち杭の杭
径としては¢800mm〜¢4,000mm位まであり、杭
の長さは10m〜80m位まであり、鉄筋径も主筋でD-19
mm〜D-51mmまで、フープ筋はD-10mm〜D-32mmまである。
鉄筋カゴの製作方法は、1)組立筋に主筋を溶接で取り
付け、カゴの骨組みをする、2)円状に加工したフープ
筋を骨組みをした主筋の外側に入れる、3)主筋とフー
プ筋の交差する個所を溶接又は結束(結束線)で止め、
フープ筋のラップ部分を鉄筋径の10倍の長さをフレア
ー溶接で固定する、4)スペーサ筋は、溶接で主筋又は
フープ筋に止める、 5)底筋も溶接で取り付ける、こ
とにより行われる。場所打ち杭の鉄筋カゴで重要な所
は、フープ筋のラップ部分であり、このフープ筋のラッ
プ部分が破断すると杭が折れる可能性がある。神戸の大
震災以来、この事が重要視され、ラップ部分を溶接のA-
2F以上の有資格者が鉄筋径の10d(10倍)をフレア
ー溶接している。フレアー溶接は、溶接部分は丈夫でも
溶接の両端が溶接の熱で脆くなり、工業試験等で引っ張
り試験を行うと溶接の両端から破断してしまう。このフ
レアー溶接に代わる方法として、フープ筋の両端をフッ
ク状に曲げる方法、すなわち円状に加工したフープ筋の
両先端を円の内側に曲げる形状もあるが、これも固定す
る時は、とれない程度の溶接をしている。フープ筋の両
端にフックを付けることは良い方法であるが、固定する
時に溶接することは、溶接した所から破断する可能性が
あるので、フック状に曲げる意味がなくなってしまう。
また、主筋とフープ筋の交点を結束する金具は、何点か
特許出願になっているが、場所打ち杭の鉄筋カゴでは主
筋とフープ筋の交点はあまり重要ではない、要所をクロ
スバンドで固定し、あとは結束線で十分である。大事な
のは、機械で掘削した穴にクレーンで鉄筋カゴを建て込
む時に壊れないように、壊れたら幾ら良い製品でも使い
ものにならず、また重大災害に繋がる危険性がある。こ
れを防止するには、主筋と組立筋の骨組みをしっかり固
定すること、そしてフープ筋のラップ部分をしっかり固
定することが最も重要である。
2. Description of the Related Art Conventionally, cast-in-place piles have been used in important places such as road bridges, Shinkansen viaducts, and high-rise buildings. The size, length and structure of the piles are calculated by the designer and designed, and depending on the structure of the upper part, the pile diameter of the cast-in-place pile is up to ¢ 800mm ~ ¢ 4,000mm. Has a length of 10m to 80m, and the diameter of the reinforcing bar is D-19.
mm ~ D-51mm, hoop muscle D-10mm ~ D-32mm.
The manufacturing method of the reinforcing bar cage is 1) attaching the main bar to the assembly bar by welding to form the cage frame, 2) inserting the circularly processed hoop bar to the outside of the frame bar, and 3) connecting the main bar and the hoop bar. Welding or binding (intersection line) at the intersecting points,
The lap portion of the hoop muscle is fixed by flare welding at a length 10 times the diameter of the reinforcing bar, 4) the spacer muscle is fixed to the main muscle or the hoop muscle by welding, and 5) the bottom muscle is also attached by welding. An important part of the cast-in-place pile reinforcement basket is the wrap portion of the hoop reinforcement, and if the wrap portion of the hoop reinforcement is broken, the pile may break. Since the Great Kobe Earthquake, this has been emphasized, and the A-
Qualified person of 2F or more is flare welding 10d (10 times) of the reinforcing bar diameter. In flare welding, even if the welded portion is strong, both ends of the weld become brittle due to the heat of the welding, and if a tensile test is carried out in an industrial test or the like, it will break from both ends of the weld. As an alternative method to flare welding, there is also a method of bending both ends of the hoop muscle into a hook shape, that is, a shape in which both ends of the hoop muscle processed into a circular shape are bent inside the circle, but this cannot be taken when fixing it. We are doing some welding. It is a good method to attach hooks to both ends of the hoop muscle, but welding at the time of fixing may break the welded portion, so that there is no point in bending into a hook shape.
Also, some patents have been applied for the metal fittings that bind the intersections of the main bars and the hoops, but the intersections of the main bars and the hoops are not so important in the cast-in-place pile reinforcement cage. It is fixed, and then the binding wire is sufficient. What is important is that even if you break it, even a good product will not be usable and there is a risk of causing a serious disaster so that it will not break when you build a steel cage with a crane in a hole drilled by a machine. To prevent this, it is of utmost importance to secure the skeleton of the main muscle and the assembly muscle, and the wrap portion of the hoop muscle.

【0003】[0003]

【発明が解決しようとする課題】そこで、本発明は、道
路の橋、新幹線の高架や高層ビル等の地下部分に使用さ
れる場所打ち杭の鉄筋カゴにおいて、非溶接手段により
それぞれに適した鉄筋クラップ、鉄筋クリップ、クロス
バンドを使用した場所打ち杭の鉄筋カゴ及びその製作方
法を提供することを目的とする。
SUMMARY OF THE INVENTION Therefore, according to the present invention, in a reinforcing bar basket for cast-in-place piles used for underground parts such as road bridges, Shinkansen overpasses and high-rise buildings, the reinforcing bar suitable for each by non-welding means. An object of the present invention is to provide a reinforcing bar basket for cast-in-place piles using a clap, a reinforcing bar clip, and a cross band, and a manufacturing method thereof.

【0004】[0004]

【課題を解決するための手段】そのために、本発明の場
所打ち杭の鉄筋カゴは、杭軸方向に沿って配置される複
数本の長尺の主筋と、該主筋の内側に組み付けられると
共に杭軸方向に一定間隔で配置されるリング状の組立筋
と、該組立筋と前記主筋との交叉部を連結する鉄筋クラ
ンプと、前記主筋の外側に巻回され、杭軸方向に所定間
隔で配置されるフープ筋と、該フープ筋の先端ラップ部
分を固定する鉄筋クリップと、前記主筋とフープ筋との
交叉部を連結するクロスバンドと、前記主筋に取り付け
られ、掘削穴と鉄筋カゴとの一定空間間隔をとるための
スペーサ筋と、該スペーサ筋を主筋に取り付けるための
スペーサクリップとから構成されるものである。また、
本発明の鉄筋カゴの製作方法は、リング状の組立筋の外
側に多数本の長尺の主筋を所定間隔で鉄筋クランプで取
り付けて骨組みし、次に円状に加工したフープ筋を骨組
みした主筋の外側に巻いてラップ部分を鉄筋クリップで
固定し、さらに主筋とフープ筋の交差する個所をクロス
バンドで止め、そしてスペーサ筋を主筋にスペーサクリ
ップで適宜位置に取り付けるものである。
To this end, a reinforcing bar basket of a cast-in-place pile according to the present invention is provided with a plurality of long main bars arranged along the axial direction of the pile, and is assembled inside the main bars and is also piled. A ring-shaped assembly bar arranged at a constant interval in the axial direction, a reinforcing bar clamp that connects the intersection of the assembly bar and the main bar, and a coil wound outside the main bar and arranged at a predetermined interval in the axial direction of the pile. A hoop muscle, a rebar clip that fixes the tip lap portion of the hoop muscle, a cross band that connects the intersection of the main muscle and the hoop muscle, and a fixed hole between the excavation hole and the reinforcing steel basket that is attached to the main muscle. It is composed of a spacer bar for providing a space interval and a spacer clip for attaching the spacer bar to the main bar. Also,
The method for manufacturing a reinforcing bar basket of the present invention is a method in which a large number of long main bars are attached to the outside of a ring-shaped assembly bar with a rebar clamp at predetermined intervals to form a frame, and then a hoop bar processed into a circular shape is a main frame. It is wound on the outer side of the above, the wrap portion is fixed with a reinforcing bar clip, the crossing point of the main bar and the hoop bar is stopped with a cross band, and the spacer bar is attached to the main bar at an appropriate position with a spacer clip.

【0005】[0005]

【発明の実施の形態】以下、本発明の実施例を添付図面
に基づいて説明する。本発明の場所打ち杭の鉄筋カゴ
は、図1に示すように、主筋1、組立筋2、フープ筋3
とからなり、さらに詳細には、杭軸方向に沿って配置さ
れる複数本の長尺の主筋1と、該主筋1の内側に組み付
けられると共に杭軸方向に一定間隔で配置されるリング
状の組立筋2と、該組立筋2と前記主筋1との交叉部を
連結する鉄筋クランプ4と、前記主筋1の外側に巻回さ
れ、杭軸方向に所定間隔で配置されるフープ筋3と、該
フープ筋3の先端ラップ部分を固定する鉄筋クリップ5
と、前記主筋1とフープ筋3との交叉部を連結するクロ
スバンド6と、前記主筋1に取り付けられ、掘削穴と鉄
筋カゴとの一定空間間隔をとるためのスペーサ筋7と、
該スペーサ筋7を主筋1に取り付けるためのスペーサク
リップ8とから構成される。
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIG. 1, the reinforcing bar basket of the cast-in-place pile of the present invention includes a main bar 1, an assembly bar 2, and a hoop bar 3.
More specifically, more specifically, a plurality of elongated main bars 1 arranged along the pile axial direction, and a ring-shaped member that is assembled inside the main bars 1 and is arranged at regular intervals in the pile axial direction. An assembly bar 2, a reinforcing bar clamp 4 connecting an intersection of the assembly bar 2 and the main bar 1, a hoop bar 3 wound outside the main bar 1 and arranged at a predetermined interval in the pile axial direction, Reinforcing bar clip 5 for fixing the tip wrap portion of the hoop muscle 3
A cross band 6 that connects the intersections of the main bars 1 and the hoop muscles 3; and a spacer bar 7 that is attached to the main bars 1 for maintaining a constant space between the drill hole and the reinforcing bar basket;
A spacer clip 8 for attaching the spacer muscle 7 to the main muscle 1.

【0006】前記鉄筋クランプ4は、図2(a)に示すよ
うに、直角に交差する方向で、背中合わせに結合された
半円形の固定部9,9と、該固定部9の連結部を中心と
して対称にして、前記固定部9の一端に軸を介して揺動
自在に取り付けられ、先端側にネジを有するネジ棒10
と、該ネジ棒10の先端側に螺合されるナット11と、
前記固定部9の他端に軸を介して枢動自在に取り付けら
れ、先端側に前記ネジ棒10が嵌合する二股部12を有
する半円形の押さえ部13,13とから構成される。
As shown in FIG. 2 (a), the reinforcing bar clamp 4 has a semicircular fixing part 9 and 9 connected back to back in a direction intersecting at right angles, and a connecting part of the fixing part 9 as a center. And a screw rod 10 which is attached to one end of the fixed portion 9 through a shaft so as to be swingable and has a screw on the tip side.
And a nut 11 screwed to the tip side of the screw rod 10,
The fixing portion 9 is pivotally attached to the other end through a shaft, and is composed of semicircular pressing portions 13 and 13 each having a forked portion 12 into which the screw rod 10 is fitted.

【0007】次に、前記鉄筋クランプ4を主筋1と組立
筋2との交叉部に使用する場合について、図2(b)に基
づいて説明する。鉄筋クランプ4のネジ棒10及び押さ
え部13をそれぞれ外側に拡開させ、一方の固定部9を
主筋1の内側に嵌合させて押さえ部13を主筋1側に廻
して、押さえ部13の二股部12とネジ棒10とを嵌合
させ、ネジ棒10のナット11を締め付け側に廻して主
筋1に固定部9の一方を締め付け固定する。他方の固定
部9は、すでに組立筋2に下側から嵌合しているので押
さえ部13を組立筋2側に廻して、同様に押さえ部13
の二股部12とネジ棒10とを嵌合させ、ネジ棒10の
ナット11を締め付け側に廻して組立筋2に固定部9の
他方を締め付け固定する。このようにして、図2(c)に
示すように、主筋1と組立筋2との交叉部をナット11
の締め付けによって簡単に固定することが出来る。
Next, the case where the reinforcing bar clamp 4 is used at the intersection of the main bar 1 and the assembly bar 2 will be described with reference to FIG. 2 (b). The screw rod 10 and the pressing portion 13 of the reinforcing bar clamp 4 are respectively expanded outward, one fixing portion 9 is fitted inside the main bar 1 and the pressing portion 13 is turned to the main bar 1 side, and the bifurcation of the pressing portion 13 is performed. The portion 12 and the screw rod 10 are fitted together, and the nut 11 of the screw rod 10 is turned to the tightening side to fasten one of the fixing portions 9 to the main bar 1. Since the other fixing portion 9 has already been fitted to the assembly bar 2 from the lower side, the pressing section 13 is turned to the assembly bar 2 side, and similarly, the pressing section 13 is pressed.
The forked portion 12 and the screw rod 10 are fitted to each other, the nut 11 of the screw rod 10 is turned to the tightening side, and the other end of the fixed portion 9 is fastened and fixed to the assembly bar 2. In this way, as shown in FIG. 2C, the intersection of the main bar 1 and the assembled bar 2 is attached to the nut 11
It can be easily fixed by tightening.

【0008】前記鉄筋クリップ5は、図3(a)に示すよ
うに、少なくともフープ筋3径の2倍以上の長さを有
し、下面にフープ筋3が嵌合する凹部14,14を2個
形成し、さらに両端に孔15,15を有する平板固定部
16と、両端にネジ部17,17を有するU字状棒状体
から形成され、前記平板固定部16の孔15に前記ネジ
部17を挿入される締め付け部18と、前記締め付け部
18のネジ部17に前記平板固定部16側から螺合され
るナット11,11とから構成される。
As shown in FIG. 3 (a), the reinforcing bar clip 5 has a length of at least twice the diameter of the hoop muscle 3 and has two recesses 14 and 14 on the lower surface to which the hoop muscle 3 fits. The flat plate fixing portion 16 is formed individually, and is further formed with a U-shaped rod-shaped body having screw portions 17 and 17 at both ends, and the screw portion 17 is provided in the hole 15 of the flat plate fixing portion 16. And a nut portion 11, which is screwed into the screw portion 17 of the tightening portion 18 from the flat plate fixing portion 16 side.

【0009】次に、前記鉄筋クリップ5をフープ筋3の
先端ラップ部分に使用するする場合について、図3(b)
に基づいて説明する。2個の鉄筋クリップ5のナット1
1を緩めて、フープ筋3の先端部分に同一凹部14に重
ならないように予め鉄筋クリップ5の凹部14にフープ
筋3をそれぞれ嵌合させておく。そして、図3(b)に示
すように、フープ筋3の先端部分を平行にラップ(重
畳)させたのち、それぞれの鉄筋クリップ5をフープ筋
3に沿ってラップ部分に移動させてそれぞれ反対の凹部
14にフープ筋3をそれぞれ嵌合させる。さらに、それ
ぞれの鉄筋クリップ5のナット11を締め付けて、図3
(c)に示すように、フープ筋3の先端ラップ部分を締め
付け固定する。なお、フープ筋3の外周に所定間隔で突
条が形成されていれば、鉄筋クリップ5で締め付け固定
した時に、フープ筋3の抜け等を防止することが出来
る。
Next, FIG. 3B shows a case where the reinforcing bar clip 5 is used for the tip wrap portion of the hoop muscle 3.
It will be described based on. Nuts 1 for two rebar clips 5
1 is loosened and the hoop muscles 3 are fitted into the concave portions 14 of the reinforcing bar clip 5 in advance so that the tip portions of the hoop muscles 3 do not overlap the same concave portions 14. Then, as shown in FIG. 3 (b), after the front end portions of the hoop muscles 3 are lapped (overlapped) in parallel, the respective reinforcing bar clips 5 are moved to the lap portions along the hoop muscles 3 to be opposite to each other. The hoop muscles 3 are fitted into the recesses 14, respectively. Further, tighten the nuts 11 of the respective reinforcing bar clips 5 to
As shown in (c), the tip lap portion of the hoop muscle 3 is tightened and fixed. If the ridges are formed on the outer circumference of the hoop muscle 3 at predetermined intervals, it is possible to prevent the hoop muscle 3 from coming off or the like when tightened and fixed by the reinforcing bar clip 5.

【0010】前記クロスバンド6は、図4(a)に示すよ
うに、金属太線から一体に形成され、ほぼ細長U字形に
折り曲げてU字折曲部19を形成し、さらに該U字折曲部
19側近傍を上方向に直角に平行に折り曲げてフープ筋
3の外周に嵌合する凸状部20を形成し、U字開放側の
先端はそれぞれ互いに内側に直角に折り曲げてほぼ重畳
するように折曲部21を設けてなる。したがって、折曲
部21の先端は互いに接続されていないので、開放可能
となっている。
As shown in FIG. 4 (a), the cross band 6 is integrally formed from a thick metal wire and is bent into a substantially elongated U-shape to form a U-shaped bent portion 19, which is further bent. The vicinity of the portion 19 side is bent upward at a right angle in parallel to form a convex portion 20 that fits on the outer circumference of the hoop muscle 3, and the U-shaped open ends are bent inward at right angles to each other so that they substantially overlap. Is provided with a bent portion 21. Therefore, since the tips of the bent portions 21 are not connected to each other, they can be opened.

【0011】次に、前記クロスバンド6を主筋1とフー
プ筋3との交叉部に使用する場合について、図4(b)に
基づいて説明する。前記クロスバンド6の折曲部21を
開放して主筋1にクロスバンド6のU字折曲部19を下
から係合させ、フープ筋3にクロスバンド6の両方の凸
状部20が上から係合するように被せて、さらに主筋1
にクロスバンド6の直線部分を沿わせて折曲部21をク
ロスバンド6の弾発力に逆らって主筋1の下方側に引っ
かける。こうすることにより、主筋1とフープ筋3との
交叉部は、主筋1には下から持ち上げる方向に力が作用
し、フープ筋3には上から押さえる方向に力が作用する
ので、クロスバンド6の弾発力により挟持されて固定さ
れる。なお、クロスバンド6は、図4(c)に示すよう
に、全ての主筋1とフープ筋3との交叉部に設ける必要
はなく、適宜間隔を置いて設けても良い。
Next, the case where the cross band 6 is used at the intersection of the main muscle 1 and the hoop muscle 3 will be described with reference to FIG. 4 (b). The bent portion 21 of the cross band 6 is opened to engage the U-shaped bent portion 19 of the cross band 6 with the main bar 1 from below, and both convex portions 20 of the cross band 6 are connected to the hoop line 3 from above. The main muscle 1
The bent portion 21 is hooked on the lower side of the main bar 1 against the elastic force of the cross band 6 along the straight portion of the cross band 6. As a result, at the intersection of the main muscle 1 and the hoop muscle 3, a force acts on the main muscle 1 in the direction of lifting from below, and a force acts on the hoop muscle 3 in the direction of pressing from above. It is clamped and fixed by the elastic force of. As shown in FIG. 4C, the cross bands 6 do not have to be provided at the intersections of all the main muscles 1 and the hoop muscles 3, but may be provided at appropriate intervals.

【0012】スペーサ筋7は、図5(a)に示すように、
金属太線から形成され、前記スペーサクリップ8の凹筒
部22に嵌合する直線部分24と、掘削穴と鉄筋カゴと
の空間間隔を保つために凸状に湾曲させた湾曲部分25
とからなる。また、前記スペーサクリップ8は、図5
(b)に示すように、円周部分にスペーサ筋7を嵌入支持
させる凹筒部22が形成され、円周の端が開放された円
筒状体からなり、該開放端の一方には揺動自在にネジ軸
23の一端が固定され、該ネジ軸23の先端にナット1
1を螺合してなり、前記開放端の他方には前記ネジ軸2
3が嵌合する二股部12が形成され、該二股部12にネ
ジ軸23を嵌合させて外側からナット11を締め付ける
ことにより締め付け固定することが出来る。したがっ
て、前記スペーサクリップ8の凹筒部22にスペーサ筋
7の直線部分24を嵌合させた、すなわちスペーサ筋7
の上下端にスペーサクリップ8が結合されているものを
準備し、前記スペーサクリップ8の開放端を拡げて円筒
部26を主筋1に嵌合させたのち、ネジ軸23を二股部
12に嵌合させて外側からナット11を締め付け側に回
転して締め付け固定する。なお、スペーサ筋7の配置
は、図5(c)に示すように、掘削穴に差し込まれた鉄筋
カゴが掘削穴と一定空間間隔を保つように主筋1の適宜
位置に間隔をあけて取り付けられる。
The spacer muscle 7 is, as shown in FIG. 5 (a),
A straight portion 24 formed of a thick metal wire and fitted in the concave cylinder portion 22 of the spacer clip 8 and a curved portion 25 curved in a convex shape to maintain a space between the excavation hole and the reinforcing bar basket.
Consists of. The spacer clip 8 is shown in FIG.
As shown in (b), a concave cylindrical portion 22 for inserting and supporting the spacer streak 7 is formed in the circumferential portion, and is formed of a cylindrical body with an open end, and one end of the open end swings. One end of the screw shaft 23 is freely fixed, and the nut 1 is attached to the tip of the screw shaft 23.
1 is screwed together, and the other end of the open end is the screw shaft 2
A bifurcated portion 12 to which 3 is fitted is formed, and a screw shaft 23 is fitted into the bifurcated portion 12 and the nut 11 is fastened from the outside, whereby the bifurcated portion 12 can be fastened and fixed. Therefore, the linear portion 24 of the spacer rib 7 is fitted into the concave cylindrical portion 22 of the spacer clip 8, that is, the spacer rib 7
After preparing a spacer clip 8 coupled to the upper and lower ends of the spacer clip, the open end of the spacer clip 8 is expanded to fit the cylindrical portion 26 to the main bar 1, and then the screw shaft 23 is fitted to the bifurcated portion 12. Then, the nut 11 is rotated from the outside to the tightening side to be tightened and fixed. As for the arrangement of the spacer bars 7, as shown in FIG. 5 (c), the reinforcing bar cage inserted into the excavation hole is attached at an appropriate position on the main bar 1 so as to keep a constant space with the excavation hole. .

【0013】次に、本発明の鉄筋カゴの製作方法につい
て述べる。 1.所定間隔に並置した環状の組立筋2の外周側に主筋
1を等間隔で配置し、鉄筋クランプ4のネジ棒10及び
押さえ部13を外側に拡開させ、一方の固定部9を主筋
1の内側に嵌合させて押さえ部13を主筋1側に廻し
て、押さえ部13の二股部12とネジ棒10とを嵌合さ
せ、ネジ棒10のナット11を締め付け側に廻して主筋
1に鉄筋クランプ4の一方を締め付け固定する。他方の
固定部9は、すでに組立筋2に下側から嵌合しているの
で押さえ部13を組立筋2側に廻して、同様に押さえ部
13の二股部12とネジ棒10とを嵌合させ、ネジ棒1
0のナット11を締め付け側に廻して組立筋2に鉄筋ク
ランプ4の他方を締め付け固定し、多数本並べた主筋1
の円筒状の骨組みを形成する。 2.次に、骨組みした主筋1の外側に円状に加工したフ
ープ筋3を一定間隔ではめ込み、前記鉄筋クリップ5の
ナット11を緩めて、フープ筋3の先端部分に同一凹部
14に重ならないように予め鉄筋クリップ5の凹部14
にフープ筋3をそれぞれ嵌合させておく。そして、フー
プ筋3の先端部分を平行にラップ(重畳)させたのち、
それぞれの鉄筋クリップ5をフープ筋3に沿ってラップ
部分に移動させてそれぞれ反対の凹部14にフープ筋3
をそれぞれ嵌合させる。さらに、それぞれの鉄筋クリッ
プ5のナット11を締め付けてフープ筋3の先端ラップ
部分を締め付け固定し、フープ筋3のラップ部分は鉄筋
クリップ5でしっかり止める。 3.主筋1とフープ筋3の交叉する個所を、前記クロス
バンド6の折曲部21を開放して主筋1にクロスバンド
6のU字折曲部19を下から係合させ、フープ筋3にク
ロスバンド6の両方の凸状部20が上から係合するよう
に被せて、さらに主筋1にクロスバンド6の直線部分2
4を沿わせて折曲部21をクロスバンド6の弾発力に逆
らって主筋1の下方側に引っかけてクロスバンド6を止
める。 4.スペーサ筋7は、スペーサ筋7の上下端にスペーサ
クリップ8が結合されているものを準備し、前記スペー
サクリップ8の開放端を拡げて円筒部26を主筋1に嵌
合させたのち、ネジ軸23を二股部12に嵌合させて外
側からナット11を締め付け側に回転して締め付け固定
し、それぞれスペーサクリップ8で主筋1に取り付け
る。 5.底筋(図示せず)は、クロスバンド6で取り付け
る。なお、鉄筋クランプ4、鉄筋クリップ5は、鉄筋径
や重量に適したものを利用する。
Next, a method for manufacturing the reinforcing bar basket of the present invention will be described. 1. The main bars 1 are arranged at equal intervals on the outer peripheral side of the annular assembly bars 2 juxtaposed at a predetermined interval, the screw rod 10 and the pressing portion 13 of the reinforcing bar clamp 4 are expanded to the outside, and one fixing portion 9 is fixed to the main bar 1. Fitting inward, turning the pressing portion 13 to the main bar 1 side, fitting the forked part 12 of the pressing part 13 and the screw rod 10, turning the nut 11 of the screw rod 10 to the tightening side, and reinforcing bar to the main bar 1. One of the clamps 4 is tightened and fixed. Since the other fixing portion 9 is already fitted to the assembly bar 2 from the lower side, the pressing portion 13 is turned to the assembly bar 2 side, and the forked portion 12 of the pressing portion 13 and the screw rod 10 are similarly fitted. Let the screw rod 1
0 of the nut 11 is turned to the tightening side, the other end of the reinforcing bar clamp 4 is tightened and fixed to the assembly bar 2, and a large number of main bars 1 are arranged.
To form a cylindrical skeleton. 2. Next, the circularly processed hoop muscles 3 are fitted on the outside of the framed main muscles 1 at regular intervals, and the nuts 11 of the reinforcing bar clips 5 are loosened so that the tip portions of the hoop muscles 3 do not overlap the same recessed portion 14. The recess 14 of the reinforcing bar clip 5 in advance
The hoop muscles 3 are fitted to each. Then, after wrapping (overlapping) the tip portions of the hoop muscles 3 in parallel,
Move each rebar clip 5 along the hoop muscle 3 to the wrap portion and place the hoop muscle 3 in the opposite concave portion 14 respectively.
Are fitted together. Further, the nuts 11 of the respective reinforcing bar clips 5 are tightened to fasten and fix the tip wrap portions of the hoop muscles 3, and the wrap portions of the hoop muscles 3 are firmly fixed by the reinforcing bar clips 5. 3. At the intersection of the main bar 1 and the hoop muscle 3, the bent part 21 of the cross band 6 is opened to engage the U-shaped bent part 19 of the cross band 6 with the main bar 1 from below to cross the hoop muscle 3. Both convex portions 20 of the band 6 are covered so as to engage with each other from above, and the straight portion 2 of the cross band 6 is further attached to the main bar 1.
4, the bent portion 21 is hooked to the lower side of the main bar 1 against the elastic force of the cross band 6 to stop the cross band 6. 4. The spacer bar 7 is prepared such that the spacer clips 8 are coupled to the upper and lower ends of the spacer bar 7, and the open end of the spacer clip 8 is expanded to fit the cylindrical portion 26 into the main bar 1 and then the screw shaft. 23 is fitted to the forked portion 12, the nut 11 is rotated from the outside to the tightening side and tightened and fixed, and each is attached to the main bar 1 by the spacer clip 8. 5. The bottom muscles (not shown) are attached with a cross band 6. For the reinforcing bar clamp 4 and the reinforcing bar clip 5, those suitable for the diameter and weight of the reinforcing bar are used.

【0014】[0014]

【効果】このように、本発明の場所打ち杭の鉄筋カゴ及
びその製作方法は、それぞれに適した鉄筋クランプ、鉄
筋クリップ、クロスバンド、スペーサクリップを使用し
た非溶接手段により行うことが出来るため、製作が容易
であると共に製作日数が短縮できる。
[Effect] As described above, since the reinforcing bar basket of the cast-in-place pile and the manufacturing method thereof according to the present invention can be performed by a non-welding means using a reinforcing bar clamp, a reinforcing bar clip, a cross band, and a spacer clip suitable for each, The production is easy and the number of production days can be shortened.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の鉄筋カゴの説明用側面図である。FIG. 1 is a side view for explaining a reinforcing bar basket of the present invention.

【図2】本発明の鉄筋クランプの(a)平面図、(b)組立説
明図、(c)組立横断面図である。
FIG. 2 is a (a) plan view, (b) assembly explanatory view, and (c) assembly cross-sectional view of a reinforcing bar clamp of the present invention.

【図3】本発明の鉄筋クリップの使用状態の(a)正面
図、(b)平面図、(c)横断面図である。
3 (a) is a front view, FIG. 3 (b) is a plan view, and FIG. 3 (c) is a transverse cross-sectional view of a reinforcing bar clip of the present invention in use.

【図4】本発明のクロスバンドの(a)斜視図、(b)使用状
態の斜視図、(c)使用状態の全体正面図である。
4A is a perspective view of a cross band of the present invention, FIG. 4B is a perspective view of a use state, and FIG. 4C is an overall front view of the use state.

【図5】本発明のスペーサクリップの(a)使用状態の斜
視図、(b)使用状態の一部を省略した拡大正面面図、(c)
全体正面図である。
5A and 5B are perspective views of a spacer clip of the present invention in a usage state, FIG. 5B is an enlarged front view with a part of the usage state omitted, and FIG.
It is the whole front view.

【符号の説明】[Explanation of symbols]

1 主筋 2 組立筋 3 フープ筋 4 鉄筋クランプ 5 鉄筋クリップ 6 クロスバンド 7 スペーサ筋 8 スペーサクリップ 9 固定部 10 ネジ棒 11 ナット 12 二股部 13 押さえ部 14 凹部 15 孔 16 平板固定部 17 ネジ部 18 締め付け部 19 U字折曲部 20 凸状部 21 折曲部 22 凹筒部 23 ネジ軸 24 直線部分 25 湾曲部分 26 円筒部 1 main line 2 assembly muscle 3 hoop muscle 4 Reinforcing bar clamp 5 rebar clips 6 cross bands 7 Spacer muscle 8 Spacer clip 9 Fixed part 10 screw rod 11 nuts 12 Bifurcation 13 Holding part 14 recess 15 holes 16 Flat plate fixing part 17 screw part 18 Tightening part 19 U-shaped bend 20 convex part 21 Bent 22 Recessed tube 23 screw shaft 24 Straight part 25 curved part 26 Cylindrical part

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) E04G 7/16 E04G 7/16 21/12 105 21/12 105A 105E ─────────────────────────────────────────────────── ─── Continued Front Page (51) Int.Cl. 7 Identification Code FI Theme Code (Reference) E04G 7/16 E04G 7/16 21/12 105 21/12 105A 105E

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 杭軸方向に沿って配置される多数本の長
尺の主筋と、該主筋の内側に組み付けられると共に杭軸
方向に一定間隔で配置されるリング状の組立筋と、該組
立筋と前記主筋との交叉部を連結する鉄筋クランプと、
前記主筋の外側に巻回され、杭軸方向に所定間隔で配置
されるフープ筋と、該フープ筋の先端ラップ部分を固定
する鉄筋クリップと、前記主筋とフープ筋との交叉部を
連結するクロスバンドと、前記主筋に取り付けられ、掘
削穴と鉄筋カゴとの一定空間間隔をとるためのスペーサ
筋と、該スペーサ筋を主筋に取り付けるためのスペーサ
クリップとから構成されることを特徴とする場所打ち杭
の鉄筋カゴ。
1. A large number of long main bars arranged along the pile axial direction, ring-shaped assembly bars assembled inside the main bars and arranged at regular intervals in the pile axial direction, and the assembly. A reinforcing bar clamp that connects a crossing portion between a muscle and the main muscle,
A hoop reinforcement wound around the outside of the main reinforcement and arranged at a predetermined interval in the pile axial direction, a reinforcing bar clip fixing the tip wrap portion of the hoop reinforcement, and a cross connecting the intersection of the main reinforcement and the hoop reinforcement. A cast-in-place caster, comprising: a band, a spacer bar attached to the main bar and having a constant space between the excavation hole and the reinforcing bar basket, and a spacer clip for mounting the spacer bar to the main bar. Pile rebar basket.
【請求項2】 リング状の組立筋の外側に多数本の長尺
の主筋を所定間隔で鉄筋クランプで取り付けて骨組み
し、次に円状に加工したフープ筋を骨組みした主筋の外
側に巻いてラップ部分を鉄筋クリップで固定し、さらに
主筋とフープ筋の交差する個所をクロスバンドで止め、
そしてスペーサ筋を主筋にスペーサクリップで適宜位置
に取り付けることを特徴とする鉄筋カゴの製作方法。
2. A large number of long main bars are attached to the outside of a ring-shaped assembled bar at predetermined intervals with a reinforcing bar clamp to form a frame, and then a circularly processed hoop line is wound on the outside of the framed main bar. Secure the wrap part with a reinforcing bar clip, and further stop the crossing point of the main bar and hoop bar with a cross band,
And a method for manufacturing a reinforcing bar basket, characterized in that spacer bars are attached to the main bars at appropriate positions with spacer clips.
JP2001206480A 2001-07-06 2001-07-06 Reinforcing bar cage for cast-in-place pile and its manufacturing method Pending JP2003020644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001206480A JP2003020644A (en) 2001-07-06 2001-07-06 Reinforcing bar cage for cast-in-place pile and its manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001206480A JP2003020644A (en) 2001-07-06 2001-07-06 Reinforcing bar cage for cast-in-place pile and its manufacturing method

Publications (1)

Publication Number Publication Date
JP2003020644A true JP2003020644A (en) 2003-01-24

Family

ID=19042600

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP2003020644A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008214990A (en) * 2007-03-06 2008-09-18 Kajima Corp Basket body and manufacturing method for basket body
JP2010053561A (en) * 2008-08-27 2010-03-11 Fuji Bolt Seisakusho:Kk Implement for binding reinforcements together
CN102717248A (en) * 2012-07-05 2012-10-10 南通中远船务工程有限公司 Design method for section closure accuracy of octagonal pile leg
CN103352463A (en) * 2013-06-28 2013-10-16 中国一冶集团有限公司 Device and method for adjusting joint installation error during connection of straight-thread sleeve pipe and reinforcement cage
JP5961778B1 (en) * 2015-06-19 2016-08-02 一男 比屋根 Anchor bolt installation base
CN109518887A (en) * 2019-01-20 2019-03-26 南京工业大学 A kind of bar splicing connector
CN111980302A (en) * 2020-08-07 2020-11-24 中国十七冶集团有限公司 Device for controlling gap between main reinforcement and stirrup of reinforcement cage and construction method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008214990A (en) * 2007-03-06 2008-09-18 Kajima Corp Basket body and manufacturing method for basket body
JP2010053561A (en) * 2008-08-27 2010-03-11 Fuji Bolt Seisakusho:Kk Implement for binding reinforcements together
CN102717248A (en) * 2012-07-05 2012-10-10 南通中远船务工程有限公司 Design method for section closure accuracy of octagonal pile leg
CN103352463A (en) * 2013-06-28 2013-10-16 中国一冶集团有限公司 Device and method for adjusting joint installation error during connection of straight-thread sleeve pipe and reinforcement cage
CN103352463B (en) * 2013-06-28 2016-02-17 中国一冶集团有限公司 Screwed pipe joint reinforcing cage jiont treatment regulating error device and method
JP5961778B1 (en) * 2015-06-19 2016-08-02 一男 比屋根 Anchor bolt installation base
JP2017008540A (en) * 2015-06-19 2017-01-12 一男 比屋根 Installation stand of anchor bolt
CN109518887A (en) * 2019-01-20 2019-03-26 南京工业大学 A kind of bar splicing connector
CN111980302A (en) * 2020-08-07 2020-11-24 中国十七冶集团有限公司 Device for controlling gap between main reinforcement and stirrup of reinforcement cage and construction method

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