JP3042513B2 - Reinforcing bar holder - Google Patents
Reinforcing bar holderInfo
- Publication number
- JP3042513B2 JP3042513B2 JP10292135A JP29213598A JP3042513B2 JP 3042513 B2 JP3042513 B2 JP 3042513B2 JP 10292135 A JP10292135 A JP 10292135A JP 29213598 A JP29213598 A JP 29213598A JP 3042513 B2 JP3042513 B2 JP 3042513B2
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing bar
- main
- bar holder
- opening
- bars
- 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
- Reinforcement Elements For Buildings (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、鉄筋コンクリー
ト（以下「ＲＣ」という）工事において、特に柱の主筋
を配筋する際に、柱の主筋を高密度・高精度に配筋し、
保持できるようにした鉄筋保持具に関する。BACKGROUND OF THE INVENTION The present invention relates to reinforced concrete (hereinafter referred to as "RC") construction, particularly when arranging the main reinforcement of a column, by arranging the main reinforcement of the column with high density and high accuracy.
About the rebar holder that can be held.
【０００２】[0002]
【従来の技術および発明が解決しようとする課題】近
年、ＲＣ構造の高層化が進み、それに伴って高強度かつ
太径鉄筋の高密度・高精度の配筋を強いられるようにな
ってきた。2. Description of the Related Art In recent years, the height of RC structures has been increased, and accordingly, high-strength, high-density, high-precision reinforcement of large-diameter reinforcing bars has been required.
【０００３】特に、柱の主筋を配筋する場合などに、こ
れまで、特別な治具を使用しなくても特に大きな問題は
なかったが、建物の高層化に伴って高強度かつ太径鉄筋
の高密度・高精度の配筋が要求されるようになり、この
ため主筋を定められた位置に配筋するための特別な治具
が必要になってきた。[0003] In particular, in the case of arranging a main reinforcing bar of a column, there has been no major problem without using a special jig. The high-density and high-precision reinforcement has been required, and a special jig for arranging the main reinforcement at a predetermined position has been required.
【０００４】また、配筋工事の省力化を図るため、予め
複数の鉄筋をかご状に組み立てたものを一度に配筋する
鉄筋のプレファブ化が一般的に行われており、その際、
鉄筋かごの建て起こし、吊り上げ、さらには移動する際
などに、主筋が移動・変形するおそれがあり、このため
プレファブ鉄筋を組み立てる場合にも、鉄筋を高密度・
高精度に配筋し、保持できる鉄筋保持具の開発が望まれ
ていた。[0004] Further, in order to save labor in the rebar arrangement work, a prefabrication of a rebar is generally performed in which a plurality of rebars are assembled in a cage shape in advance at a time, and at that time,
Main bars may move or deform when erecting, lifting, or moving rebar baskets.Therefore, when assembling prefabricated rebars, the rebar must be
There has been a demand for the development of a reinforcing bar retainer that can be arranged and held with high precision.
【０００５】なお、これまで、特に高密度・高精度な配
筋が必要な場合には、例えば図４に図示するような、鋼
板１０に主筋１１を通して保持するための孔１２を主筋
１１の配筋ピッチに合わせて所定間隔に形成した鋼製テ
ンプレート１３が使用されている。Until now, particularly when high-density and high-precision reinforcement is required, a hole 12 for holding the main reinforcement 11 in the steel plate 10 as shown in FIG. A steel template 13 formed at a predetermined interval according to the streak pitch is used.
【０００６】しかし、この種の鋼製テンプレート１３
は、製作コストが高くつく上に、鋼製故に重いために作
業性が悪く、しかもコンクリートの充填性が悪いため取
り外す必要があった。However, this kind of steel template 13
In addition, the production cost is high, and since it is made of steel, it is heavy and the workability is poor, and the filling property of concrete is poor, so it has been necessary to remove it.
【０００７】この発明は以上の課題を解決するためにな
されたもので、特に柱の主筋を高密度・高精度に配筋
し、保持できる鉄筋保持具を提供することを目的とす
る。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a reinforcing bar holder capable of arranging and holding main bars of a column with high density and high precision.
【０００８】[0008]
【課題を解決するための手段】以上の課題を解決するた
めに、この発明に係る鉄筋保持具は、中央部に開口部
を、その周囲に所定ピッチに配筋された複数の主筋を通
して保持する複数の格子目をそれぞれ配し、かつ複数の
縦鉄筋と横鉄筋とから形成する。In order to solve the above-mentioned problems, a rebar holding tool according to the present invention holds an opening at a central portion through a plurality of main bars arranged at a predetermined pitch around the opening. A plurality of grids are arranged, respectively, and are formed from a plurality of vertical reinforcing bars and horizontal reinforcing bars.
【００１０】[0010]
【発明の実施の形態】図１と図２は、この発明に係る鉄
筋保持具の一例を示し、図において複数の縦鉄筋１と横
鉄筋２が格子状に配筋され、かつ縦鉄筋１と横鉄筋２の
各交点部が溶接する等して固着されている。また、中央
部分に矩形状の開口部３が矩形状に形成されている。1 and 2 show an iron according to the present invention.
Shows an example of the muscle holder, a plurality of vertical reinforcing bars 1 and the transverse reinforcing bar 2 is Haisuji in a grid pattern, and the intersections of the vertical reinforcing bar 1 and horizontal reinforcing bar 2 is fixed by, for example welded in FIG. In addition, a rectangular opening 3 is formed in the center in a rectangular shape.
【００１１】こうして、鉄筋保持具４は中央部分に矩形
状の開口部３を有し、この開口部３の周囲に複数の格子
目５を所定のピッチに有して矩形板状に形成されてい
る。In this manner, the reinforcing bar holder 4 has a rectangular opening 3 in the center portion, and is formed in a rectangular plate shape with a plurality of grids 5 at a predetermined pitch around the opening 3. I have.
【００１２】また、こうして形成された鉄筋保持具４
は、矩形面内に複数の主筋６を所定ピッチに配筋して形
成された鉄筋かご７の上端部に、各主筋６の端部を格子
目５にそれぞれ貫通させて水平に設置されている。The reinforcing bar holder 4 thus formed is
Is horizontally installed at the upper end of a reinforcing cage 7 formed by arranging a plurality of main reinforcing bars 6 at a predetermined pitch in a rectangular plane, with the ends of the main reinforcing bars 6 penetrating through the grids 5 respectively. .
【００１３】また、鉄筋保持具４は鉄筋かご７の上端部
に、例えば図２（ｂ）に図示にするように、主筋６に螺
合する等して取り付けられたナット状カプラー８で上下
から挟みつけたり、あるいは簡単に結束線で結束する等
して固定されている。The reinforcing bar holder 4 is mounted on the upper end of the reinforcing bar cage 7 from above and below by a nut-like coupler 8 which is attached to the main reinforcing bar 6 by screwing, for example, as shown in FIG. It is fixed by being pinched or easily bound by a binding wire.
【００１４】なお、ナット状カプラー８としては、例え
ば主筋６の端部に形成された雄ねじ部または節部に螺合
して取り付けられるナットの他に、主筋６の端部を挿入
した後に圧着して主筋６の端部に固着されるもの等があ
る。As the nut-shaped coupler 8, for example, in addition to a nut screwed into a male screw portion or a node formed at the end of the main bar 6, the end of the main bar 6 is inserted and crimped. Some are fixed to the end of the main bar 6.
【００１５】このようにして、鉄筋かご７の各主筋６は
鉄筋保持具４によって当初の配筋位置に高密度・高精度
に保持されている。In this manner, the main reinforcing bars 6 of the reinforcing bar cage 7 are held by the reinforcing bar holder 4 at the initial bar arrangement positions with high density and high accuracy.
【００１６】また、中央部分に開口部３が形成されてい
ることにより、コンクリートを打設する際にポンプの筒
先を奥深くまで挿入できるため、コンクリートの充填性
もきわめてよい。Further, since the opening 3 is formed in the center part, the cylinder tip of the pump can be inserted deeply when casting concrete, so that the concrete can be filled very well.
【００１７】さらに、鉄筋保持具４が一部または全ての
主筋６にナット状カプラー８で上下から挟みつけて固定
されていることにより、鉄筋保持具４を確実に固定でき
る。特に、予めかご状に組み立ててプレファブ化された
鉄筋の場合、鉄筋かごの吊り上げ時の抜け落ちを防止で
きる。Further, since the reinforcing bar holder 4 is fixed to a part or all of the main bars 6 by being sandwiched from above and below by the nut-shaped coupler 8, the reinforcing bar holder 4 can be securely fixed. In particular, in the case of a reinforcing bar pre-fabricated by assembling in a cage shape in advance, it is possible to prevent the reinforcing bar from falling off during lifting.
【００１８】なお、縦鉄筋１と横鉄筋２には、例えば６
ｍｍ程度の丸鋼などが使用され、また鉄筋保持具４の外
寸法はコンクリートのかぶり厚を考慮して、溶接の可能
な範囲で可能な限り小さくされているのが望ましい。The vertical reinforcing bar 1 and the horizontal reinforcing bar 2 are, for example, 6
It is desirable that a round bar of about mm or the like be used, and that the outer dimensions of the reinforcing bar holder 4 be as small as possible within a weldable range in consideration of the cover thickness of the concrete.
【００１９】格子目５は主筋６を挿通し得る大きさ（主
筋外径（異形鉄筋の場合その最外径）＋２ｍｍ程度、）
に形成され、また格子目５のピッチ（間隔）ａは、主筋
４の配筋ピッチｓに合わせて同じピッチに形成されてい
る。さらに、格子目５は主筋６の配列に合わせて開口部
３の周囲に所定ピッチに形成されている。The size of the grid 5 is such that the main reinforcing bar 6 can be inserted (the outer diameter of the main reinforcing bar (the outermost diameter of a deformed reinforcing bar) + about 2 mm).
The pitches (intervals) a of the grids 5 are formed at the same pitch in accordance with the bar arrangement pitch s of the main bar 4. Further, the grids 5 are formed at a predetermined pitch around the openings 3 in accordance with the arrangement of the main streaks 6.
【００２０】図３（ａ）〜（ｃ）は、鉄筋保持具の他の
例を示し、何れも中央部分に開口部３を、その周囲に格
子目５を所定のピッチａでそれぞれ有し、矩形板状に形
成されている。FIGS. 3 (a) to 3 (c) show other examples of the reinforcing bar holder, each of which has an opening 3 in the center and grids 5 around the opening 3 at a predetermined pitch a. It is formed in a rectangular plate shape.
【００２１】なお、実際の柱の配筋工事では、主筋の
径、ピッチ等は柱により異なることから、格子目５の大
きさ、ピッチ等の異なる数種類の鉄筋保持具を準備し、
柱に応じて使い分けるものとする。In the actual work of arranging the columns, since the diameter, pitch, etc. of the main bars differ depending on the columns, several types of reinforcing bar holders having different sizes, pitches, etc. of the grids 5 are prepared.
It shall be used properly according to the pillar.
【００２２】また、鉄筋保持具４の取り付け時期は、現
場組み立て、プレファブ組み立てともに、主筋６にフー
プ筋を配筋する前に取り付けるのが望ましいが、フープ
筋を配筋した後でもよい。It is preferable that the reinforcing bar holder 4 is attached before the hoop bar is arranged on the main bar 6 in both the on-site assembly and the prefabricated assembly, but may be performed after the hoop bar is arranged.
【００２３】また、鉄筋保持具４は取り外して転用する
ことも可能であるが、精度確保や作業効率の面からも、
打ち込んだ方がメリットが多く望ましい。Further, the reinforcing bar holder 4 can be removed and diverted, but from the viewpoint of securing accuracy and working efficiency,
It is more desirable to drive it.
【００２４】特に取り外して転用する場合は、直下階の
スラブコンクリートを打設した後に取り外すのよい。そ
れ以前に取り外すと、精度を確保する上で鉄筋保持具を
使用する効果がなくなってしまうおそれがある。In particular, when the slab concrete is to be removed and diverted, the slab concrete on the immediately lower floor is preferably cast and then removed. If it is removed before that, there is a possibility that the effect of using the rebar holding tool in securing the accuracy may be lost.
【００２５】[0025]
【発明の効果】この発明は以上説明した構成からなり、
特に所定ピッチに配筋された主筋を、主筋の配筋ピッチ
に合わせて形成された複数の格子目にそれぞれ通して保
持するので、主筋を高密度・高精度に保持できる効果が
ある。The present invention has the above-described structure,
In particular, since the main bars arranged at a predetermined pitch are held through a plurality of grids formed according to the main bar arrangement pitch, the main bars can be held with high density and high accuracy.
【００２６】また、中央部に開口部が形成されているた
め、コンクリートを打設する際にポンプの筒先を開口部
から奥深くまで挿入できて、コンクリートの充填性もき
わめてよい。Further, since the opening is formed in the center portion, the cylinder tip of the pump can be inserted deeply from the opening at the time of casting concrete, and the concrete can be filled very well.
【００２７】さらに、一部または全ての主筋にナット状
カプラーで上下から挟みつけて固定するので主筋に確実
に固定でき、特に予めかご状に組み立ててプレファブ化
された鉄筋の場合、鉄筋かごの吊り上げ時の抜け落ちを
防止できる。Furthermore, since some or all of the main reinforcements are sandwiched and fixed from above and below with nut-shaped couplers, they can be securely fixed to the main reinforcements. In particular, in the case of rebars preassembled in a cage and prefabricated, the reinforcement cage is lifted. Omission at the time can be prevented.
【００２８】また、複数の縦鉄筋と横鉄筋から形成され
ているので、製作コストもきわめて安価である。Further, since it is formed of a plurality of vertical reinforcing bars and horizontal reinforcing bars, the manufacturing cost is extremely low.
【図１】鉄筋保持具の使用状態を示す斜視図である。FIG. 1 is a perspective view showing a use state of a reinforcing bar holder.
【図２】鉄筋保持具を示し、（ａ）はその平面図、
（ｂ）は一部平面図、（ｃ）は鉄筋保持の取り付け状態
を示す縦断面図である。FIG. 2 shows a reinforcing bar holder, (a) is a plan view thereof,
(B) is a partial plan view, and (c) is a longitudinal sectional view showing an attached state of the reinforcing bar holding.
【図３】（ａ），（ｂ），（ｃ）はいずれも、鉄筋保持
具の他の例の平面図である。FIGS. 3 (a), (b), and (c) are plan views of other examples of the reinforcing bar holder.
【図４】従来の鉄筋保持具の一例を示す一部斜視図であ
る。FIG. 4 is a partial perspective view showing an example of a conventional reinforcing bar holder.
１ 縦鉄筋 ２ 横鉄筋 ３ 開口部 ４ 鉄筋保持具 ５ 格子目 ６ 主筋 ７ 鉄筋かご ８ ナット状カプラー DESCRIPTION OF SYMBOLS 1 Vertical reinforcing bar 2 Horizontal reinforcing bar 3 Opening 4 Reinforcing bar holder 5 Grid 6 Main reinforcing bar 7 Rebar basket 8 Nut coupler
───────────────────────────────────────────────────── フロントページの続き (72)発明者 坂野 弘一 東京都港区元赤坂１丁目２番７号 鹿島 建設株式会社内 (72)発明者 阿部 達也 東京都港区元赤坂１丁目２番７号 鹿島 建設株式会社内 (72)発明者 尾崎 悦広 東京都港区元赤坂１丁目２番７号 鹿島 建設株式会社内 (72)発明者 伊藤 直之 東京都港区元赤坂１丁目２番７号 鹿島 建設株式会社内 (56)参考文献 特開 平８−184128（ＪＰ，Ａ) 特開 昭63−255450（ＪＰ，Ａ) 実開 昭52−42427（ＪＰ，Ｕ) 登録実用新案3022319（ＪＰ，Ｕ) 特公 平４−44048（ＪＰ，Ｂ２) 特公 平５−39219（ＪＰ，Ｂ２) 実公 昭60−17449（ＪＰ，Ｙ２) 実公 昭34−5437（ＪＰ，Ｙ１) (58)調査した分野(Int.Cl.7，ＤＢ名) E04C 5/18 104 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Koichi Sakano 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Tatsuya Abe 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Etsuhiro Ozaki 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Naoyuki Ito 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima (56) References JP-A-8-184128 (JP, A) JP-A-63-255450 (JP, A) JP-A-52-42427 (JP, U) Registered utility model 3022319 (JP, U) Japanese Patent Publication No. 4-44048 (JP, B2) Japanese Patent Publication No. 5-39219 (JP, B2) Japanese Utility Model Showa 60-17449 (JP, Y2) Japanese Utility Model Showa 34-5437 (JP, Y1) (58) Field (Int. Cl. 7 , DB name) E04C 5/18 104
Claims (1)
持する鉄筋保持具であり、中央部に開口部を、その周囲
に主筋を通して保持する複数の格子目をそれぞれ有し、
かつ複数の縦鉄筋と横鉄筋とから形成してあることを特
徴とする鉄筋保持具。1. A rebar holding tool for holding a plurality of main reinforcing bars arranged at a predetermined pitch, each having an opening at a central portion and a plurality of grids around the opening to hold the main reinforcing bars,
A reinforcing bar holder formed of a plurality of vertical reinforcing bars and horizontal reinforcing bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10292135A JP3042513B2 (en) | 1998-10-14 | 1998-10-14 | Reinforcing bar holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10292135A JP3042513B2 (en) | 1998-10-14 | 1998-10-14 | Reinforcing bar holder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000120221A JP2000120221A (en) | 2000-04-25 |
| JP3042513B2 true JP3042513B2 (en) | 2000-05-15 |
Family
ID=17777998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10292135A Expired - Lifetime JP3042513B2 (en) | 1998-10-14 | 1998-10-14 | Reinforcing bar holder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3042513B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5370730B2 (en) * | 2008-12-26 | 2013-12-18 | 登 関谷 | Reinforcing bar support frame for reinforcing bar installation |
| CN110258961A (en) * | 2019-07-12 | 2019-09-20 | 中冶天工集团天津有限公司 | A kind of pitch control unit and method of plane reinforcement installation |
-
1998
- 1998-10-14 JP JP10292135A patent/JP3042513B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000120221A (en) | 2000-04-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20000208 |