JPH0444554A - precast parts - Google Patents
precast partsInfo
- Publication number
- JPH0444554A JPH0444554A JP15158490A JP15158490A JPH0444554A JP H0444554 A JPH0444554 A JP H0444554A JP 15158490 A JP15158490 A JP 15158490A JP 15158490 A JP15158490 A JP 15158490A JP H0444554 A JPH0444554 A JP H0444554A
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing bars
- coupler
- threaded
- concrete
- precast
- 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
Links
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 37
- 230000002787 reinforcement Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 238000009415 formwork Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 1
Landscapes
- Rod-Shaped Construction Members (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、隣接するプレキャスト部材の接続用にネジ鉄
筋を配筋したプレキャスト部材に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a precast member in which threaded reinforcing bars are arranged for connecting adjacent precast members.
（従来の技術）
一般に、例えばネジ鉄筋を主筋として梁を工場で製造し
たプレキャスト部材を、現場に搬入して互いに隣接する
梁と梁とを接続するには、第５図に示すように、プレキ
ャスト部材２０．２１から突出しているネジ鉄筋２２．
２３を中継鉄筋２４を介して接続具２５．２５で螺着す
る。この場合ネジ鉄筋２２．２３同士の位置ズレを解消
するために前記中継鉄筋２４と接続具２５．２５の２個
とを使用する。(Prior art) In general, in order to connect adjacent beams by transporting precast members manufactured in a factory using, for example, threaded reinforcing bars as main reinforcements, to the site, precast members are used as shown in Fig. 5. Threaded reinforcing bar 22. projecting from member 20.21.
23 is screwed onto the connectors 25 and 25 via the relay reinforcing bars 24. In this case, the relay reinforcing bars 24 and the connecting tools 25, 25 are used to eliminate the positional deviation between the threaded reinforcing bars 22, 23.
そして、前記中継鉄筋２４と接続具２５．２５による接
続後、現場打ちコンクリート２６を打設して一体化する
。Then, after connecting the relay reinforcing bars 24 and the connectors 25 and 25, cast-in-place concrete 26 is poured to integrate them.
（発明が解決しようとする課題）
しかしながら、上述のプレキャスト部材の接続方法では
、位置ズレを解消するために前記中継鉄筋と接続具２個
とを使用−しなけらばならず、狭い間隙の中での作業に
手間がかかり作業能率が悪いと言った欠点が存在した。(Problem to be Solved by the Invention) However, in the above-mentioned method for connecting precast members, the relay reinforcing bars and two connectors must be used in order to eliminate positional deviation, and they must be connected in a narrow gap. The disadvantages were that the work was time consuming and the work efficiency was poor.
本発明は、上記の課題に鑑みてなされたもので、互いに
隣接するプレキャスト部材の連結に、１箇所の接続箇所
につき１個の接続具を使用して行うことを可能にしたプ
レキャスト部材を提供することを目的とする。The present invention has been made in view of the above-mentioned problems, and provides a precast member that makes it possible to connect adjacent precast members using one connector per connection point. The purpose is to
（課題を解決するための手段）
本発明に係るプレキャスト部材の上記課題を解決し、目
的を達成するための要旨は、ネジ鉄筋を主筋として配筋
し、その両端部を連結接続用にコンクリート表面から突
出させて形成されるプレキャスト部材において、前記ネ
ジ鉄筋の両端部のネジ化を、連結用接続具のネジ化に予
め合わせて配筋した後に、コンクリートを打設して形成
したことに存する。(Means for Solving the Problems) The gist of the precast member according to the present invention to solve the above problems and achieve the purpose is to arrange screw reinforcing bars as main reinforcements, and connect both ends of the reinforcements to the concrete surface for connection. In the precast member formed to protrude from the threaded reinforcing bar, both ends of the threaded reinforcing bar are threaded in advance in accordance with the threading of the connecting connector, and then concrete is cast.
（作用）
このように、本発明に係るプレキャスト部材によれば、
プレキャスト部材の接続用にそのコンクリート表面から
突出したネジ鉄筋を接続具で接続すると、予め接続具に
対するネジ化が合わされているので、隣接するネジ鉄筋
を前記接続具で正確に接続することができる。また、従
来のように接続具を２個も必要とすることがなくなる。(Function) As described above, according to the precast member according to the present invention,
When threaded reinforcing bars protruding from the concrete surface are connected with a connecting tool for connecting precast members, since the threading of the connecting tools has been matched in advance, adjacent threaded reinforcing bars can be accurately connected with the connecting tool. Further, unlike the conventional method, two connectors are no longer required.
（実施例）
以下、添付図面に従って、本発明の一実施例を説明する
。第１図は、本発明に係るプレキャスト部材１の横断正
面図、第２図は、同じくその一部拡大図である。(Example) An example of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a cross-sectional front view of a precast member 1 according to the present invention, and FIG. 2 is a partially enlarged view thereof.
このプレキャスト部材１を形成するには、まず工場でコ
ンクリート打設用のベット２に所定長さの２本のネジ鉄
筋３，３を配置し、その中間で接続具であるカプラー４
で螺着する。この場合、第２図に示すように、カプラー
４の約中間で、ネジ鉄筋３，３を実際の現場にて接続す
るのと同様にして行う。To form this precast member 1, first, two screw reinforcing bars 3, 3 of a predetermined length are placed in a bed 2 for concrete pouring at a factory, and a coupler 4, which is a connecting tool, is placed between them.
Screw it on. In this case, as shown in FIG. 2, the threaded reinforcing bars 3, 3 are connected approximately in the middle of the coupler 4 in the same manner as in the actual site.
このネジ鉄筋３の配筋を所要数完了した後、第１図に示
す、所定の間隔りを保持して、コンクリートを打設する
。そして、この後前記カプラー４を取り外して２個のプ
レキャスト部材１，１が完成する。After completing the arrangement of the required number of threaded reinforcing bars 3, concrete is poured while maintaining the predetermined spacing shown in FIG. After that, the coupler 4 is removed and the two precast members 1, 1 are completed.
このプレキャスト部材１，１を建築現場に搬入して、従
来例にて示した第５図のようにプレキャスト部材１，１
を型枠に装着した後、再びカプラー４でもってネジ鉄筋
３，３の左右端部を螺着する。ネジ鉄筋３，３の左右端
部３ ａｌ ３ ｂは予め工場にてネジ化が合わされ
ているので、接続作業が容易となり、また、ネジ鉄筋３
，３の左右端部３ａ、３ｂでのネジ出遅いによる間隙が
生じることもない。These precast members 1, 1 are transported to a construction site, and as shown in FIG. 5 in the conventional example, the precast members 1, 1 are
After attaching it to the formwork, the left and right ends of the threaded reinforcing bars 3, 3 are again screwed together using the coupler 4. Since the left and right ends 3 al 3 b of the threaded reinforcing bars 3 and 3 are threaded together in advance at the factory, the connection work is easy, and the threaded reinforcing bars 3
, 3 at the left and right ends 3a, 3b, there is no gap caused by slow screw extraction.
このようなプレキャスト部材の接続用ネジ鉄筋の端部を
、予め工場にて接続具を使用した場合に都合の良いよう
にネジ化を合わせておくのは、この他にも、第３図に示
すようにしても出来る。In addition to this, the ends of the threaded reinforcing bars for connection of such precast members are threaded in advance for convenience when using a connecting tool at the factory, as shown in Figure 3. You can do it like this.
即ち、工場にてベット２に半割のカプラー５゜６を着脱
自在に固定する固定具７，８を載置する。That is, fixtures 7 and 8 for removably fixing the halved coupler 5.6 are placed on the bed 2 at the factory.
そして固定具７に半割のカプラー５を先に固定し、ネジ
鉄筋９の左端９ａをカプラー５のセンターラインａにま
でネジ化１０に合わせてセットする。そして、次に固定
具８にカプラー６を固定し、ネジ鉄筋９の右端９ｂをカ
プラー６にセットする。Then, the half-split coupler 5 is first fixed to the fixture 7, and the left end 9a of the threaded reinforcing bar 9 is set so as to match the threading 10 to the center line a of the coupler 5. Then, the coupler 6 is fixed to the fixture 8, and the right end 9b of the screw reinforcing bar 9 is set to the coupler 6.
このときもカプラー６のセンターラインｂに右端９ｂ端
面を合わせる。At this time as well, align the end face of the right end 9b with the center line b of the coupler 6.
前記センターラインａ、ｂをカプラー５，６にマーキン
グしておくのも好ましいものである。It is also preferable to mark the center lines a and b on the couplers 5 and 6.
そしてこのネジ鉄筋９が移動しない様にしてコンクリー
ト１１を打設して、プレキャスト部材を形成する。Then, concrete 11 is placed so that the threaded reinforcing bars 9 do not move, thereby forming a precast member.
続いて、前記固定具８に固定されたカプラー６を前記固
定具７側に移設する。同様に前記固定具７及びカプラー
５を前記固定具８側に移設する。Subsequently, the coupler 6 fixed to the fixture 8 is moved to the fixture 7 side. Similarly, the fixture 7 and coupler 5 are moved to the fixture 8 side.
そしてネジ鉄筋９をセットしてコンクリート１１を打設
する。Then, screw reinforcing bars 9 are set and concrete 11 is poured.
このように、ネジ合わせ用の半割カプラー５゜６をプレ
キャスト部材形成毎に左右位置を入れ換えて順番に形成
したプレキャスト部材を、建築現場で使用する際に隣接
させて連設すれば、ネジ鉄筋９の左右端部９ａ、９ｂが
半割のカプラー５゜６のネジ化に合わされているので、
前述と同様の効果を得ることができる。In this way, if precast members formed in order by changing the left and right positions of the half couplers 5゜6 for thread alignment each time a precast member is formed are placed adjacent to each other when used at a construction site, screw reinforcing bars can be Since the left and right ends 9a and 9b of 9 are aligned with the threaded half of the coupler 5°6,
Effects similar to those described above can be obtained.
（発明の効果）
以上説明したように、本発明に係るプレキャスト部材を
、配筋するネジ鉄筋の両端部のネジ化を、連結用接続具
のネジ化に予め合わせて配筋した後に、コンクリートを
打設して形成するので、予め接続具に対するネジ化が合
わされていて、隣接するネジ鉄筋を前記接続具で正確に
接続することができる、
また、従来のように接続具を２個も必要とすることがな
くコストも低減でき、また施工性の向上と工期の短縮と
なる。(Effects of the Invention) As explained above, the precast member according to the present invention is reinforced with concrete after the reinforcing bars are arranged in such a way that the threaded reinforcing bars at both ends match the threading of the connection fittings. Since it is formed by pouring, the threads for the connecting tools are matched in advance, and adjacent threaded reinforcing bars can be accurately connected using the connecting tools.In addition, two connecting tools are not required as in the conventional method. This reduces costs, improves workability, and shortens the construction period.
第１図は、本発明に係るプレキャスト部材の横断正面図
、第２図は、同じくその一部拡大図、第３図は、他の実
施例に係るプレキャスト部材の正面図、第４図は、同じ
（他の実施例におけるカプラーにネジ鉄筋をセットする
様子を示す説明図、第５図は、従来のプレキャスト部材
を使用して接続した場合の例を示す説明図である。
１・・・プレキャスト部材、２・・・コンクリート打設
用のベット、３・・・ネジ鉄筋、３ａ＋３ｂ・・・ネジ
鉄筋の左または右の端部、４・・・カプラー ５，６・
・・半割のカプラー ７，８・・・固定具、９・・・ネ
ジ鉄筋、ｌＯ・・・ネジ山、１１・・・プレキャスト部
材、ａ、 ｂ・・・カプラーのセンターライン。
第１図
第２図FIG. 1 is a cross-sectional front view of a precast member according to the present invention, FIG. 2 is a partially enlarged view thereof, FIG. 3 is a front view of a precast member according to another embodiment, and FIG. An explanatory diagram showing how a threaded reinforcing bar is set in a coupler in the same (another embodiment), FIG. 5 is an explanatory diagram showing an example of connection using a conventional precast member. 1... Precast Components, 2... Bed for concrete pouring, 3... Threaded reinforcing bar, 3a+3b... Left or right end of threaded reinforcing bar, 4... Coupler 5, 6.
...Half coupler 7,8...Fixing tool, 9...Screw reinforcing bar, lO...screw thread, 11...Precast member, a, b...center line of coupler. Figure 1 Figure 2
Claims (1)
にコンクリート表面から突出させて形成されるプレキャ
スト部材において、 前記ネジ鉄筋の両端部のネジ山を、連結用接続具のネジ
山に予め合わせて配筋した後に、コンクリートを打設し
て形成したことを特徴としてなるプレキャスト部材。[Scope of Claims] A precast member formed by arranging threaded reinforcing bars as main reinforcements and having both ends thereof protrude from the concrete surface for connecting connections, wherein the threads at both ends of the threaded reinforcing bars are used for connecting connections. A precast member characterized by being formed by placing reinforcement in advance to match the threads of the tool and then pouring concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15158490A JPH0444554A (en) | 1990-06-12 | 1990-06-12 | precast parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15158490A JPH0444554A (en) | 1990-06-12 | 1990-06-12 | precast parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0444554A true JPH0444554A (en) | 1992-02-14 |
Family
ID=15521712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15158490A Pending JPH0444554A (en) | 1990-06-12 | 1990-06-12 | precast parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0444554A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02178457A (en) * | 1988-12-28 | 1990-07-11 | Tokyo Tekko Kk | Precast concrete, manufacture thereof and formwork for precast concrete |
-
1990
- 1990-06-12 JP JP15158490A patent/JPH0444554A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02178457A (en) * | 1988-12-28 | 1990-07-11 | Tokyo Tekko Kk | Precast concrete, manufacture thereof and formwork for precast concrete |
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