JP2906168B2 - How to treat the upper end of column main bar - Google Patents
How to treat the upper end of column main barInfo
- Publication number
- JP2906168B2 JP2906168B2 JP8828690A JP8828690A JP2906168B2 JP 2906168 B2 JP2906168 B2 JP 2906168B2 JP 8828690 A JP8828690 A JP 8828690A JP 8828690 A JP8828690 A JP 8828690A JP 2906168 B2 JP2906168 B2 JP 2906168B2
- Authority
- JP
- Japan
- Prior art keywords
- column
- tip
- cap
- main bar
- pillar
- 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 - Fee Related
Links
Landscapes
- Conveying And Assembling Of Building Elements In Situ (AREA)
Description
【発明の詳細な説明】 （発明が属する技術分野） 本発明は、柱主筋上端の処置方法に関するものであ
る。Description: TECHNICAL FIELD The present invention relates to a method for treating the upper end of a pillar main muscle.
（発明の課題とその特徴点） 交叉する２方向の梁の各端部の所定長部分が少なくと
も下ば主筋を埋め込んだPCa梁部として形成されているP
Ca梁ユニットを柱頭部に架設すれば、柱・梁接合部の施
工が高能率化、高精度化される。(Problems of the Invention and Its Features) A predetermined length portion at each end of the beam in the two directions intersecting is formed as a PCa beam portion in which a main reinforcement is embedded at least below.
If the Ca beam unit is erected on the column head, the construction of the column-beam joint will be more efficient and more accurate.
しかしながら、PCa梁ユニットでは、柱頭部に下ろさ
れる部分（PCa梁部の交叉部）で２方向のPCa梁部に埋め
込まれた柱主筋が高密度に交叉している上、この部分に
はさらに固定が困難なフープ筋も配筋されるので、架設
時に、梁主筋もしくはフープ筋が柱頭部に突出している
柱主筋に当たって、架設が円滑に行われにくく、特に、
柱主筋をエンクローズ溶接する場合は、柱主筋の突出端
が水平にカットされているので、この傾向が顕著であ
る。However, in the PCa beam unit, the pillar main bars embedded in the PCa beam in two directions intersect at a high density at the part to be lowered to the column cap (the intersection of the PCa beam) and further fixed to this part Hoops that are difficult to arrange are also arranged, so at the time of erection, the beam main bar or the hoop bar hits the column main bar protruding from the column capital, and it is difficult for the erection to be performed smoothly,
This tendency is remarkable in the case of enclose welding of a column main bar, because the protruding end of the column main bar is cut horizontally.
そして、交叉する２方向の梁鉄筋を組み立てて形成し
た先組み梁鉄筋体を柱頭部に架設した梁型枠内に建て込
む際にも、同様の問題が生じる。A similar problem also occurs when a pre-assembled beam reinforcing member formed by assembling two-way beam reinforcing bars intersecting is built into a beam formwork erected on the column capital.
本発明は、前記２つの工法に共通の前記問題点の解決
を目的としているものであって、その構成上の特徴は特
許請求の範囲に記載したとおりである。An object of the present invention is to solve the above-mentioned problem common to the two methods, and its structural features are as described in the claims.
本発明において、どの位置の柱主筋のキヤップの先端
を上位にしておくかは、柱主筋が通ることになる梁主筋
間もしくは梁主筋とフープ筋間のクリアランスの小さい
ところということで定めるが、通常は、四隅に位置する
柱主筋のキヤップの先端である。In the present invention, the position of the cap of the column main bar at which position the tip of the cap is set higher is determined by the small clearance between the beam main bar or the beam main bar and the hoop bar through which the column main bar passes, but is usually determined. Are the tips of the caps of the pillar bars located at the four corners.
キヤップの先端のレベルを変えるために、梁主筋の先
端のレベルが同じ場合は、キヤップの長さを変えるが、
柱主筋の先端のレベルを変えて、同じ長さのキヤップを
使用するようにしてもよい。To change the level of the tip of the cap, if the level of the tip of the beam main bar is the same, change the length of the cap,
The cap at the same length may be used by changing the level of the tip of the column main bar.
なお、本発明でいう「PCa」は「プレキャストコンク
リート」を意味する。In the present invention, “PCa” means “precast concrete”.
（発明の具体的説明） 先ず、図面に基づき、請求項（１）の発明について説
明する。(Specific Description of the Invention) First, the invention of claim (1) will be described with reference to the drawings.
PCa梁ユニット１は交叉する２方向の梁の各端部の所
定長部分をPCa化したものであって、その複数のPCa梁部
２は、柱頭部における梁の交叉状態に応じて、第１図
（Ａ）に示すような十型、同図（Ｂ）に示すようなＴ
型、同図（Ｃ）に示すようなＬ型にそれぞれ交叉した状
態で形成されている。The PCa beam unit 1 is obtained by converting a predetermined length portion at each end of a beam in two directions to be crossed into a PCa, and the plurality of PCa beam portions 2 are firstly formed in accordance with a crossing state of the beam at the column capital. A tenth shape as shown in FIG. (A), and a T as shown in FIG.
And an L-shape as shown in FIG.
なお、図示のPCa梁部２は、梁主筋のうち、下ば主筋
だけを埋め込んだ半PCaタイプであり、図中、３は下ば
主筋、４はあばら筋、５はPCa梁部２の交叉部を示して
いる。The illustrated PCa beam 2 is a semi-PCa type in which only the lower main bar is buried in the beam main bar. In the figure, 3 is the lower main bar, 4 is the stirrup, 5 is the intersection of the PCa beam 2. Part is shown.
PCa梁ユニット１は、図示の形状を保持しながら、適
宜の吊り具で吊って、所定の柱頭部に運ばれて架設され
るが、その架設時の状態を示す第２図において、３′は
PCa梁部２と交叉する方向のPCa梁部に埋め込まれている
下ば主筋、６は交叉部５に配設したフープ筋、７は柱、
８は柱主筋であり、柱主筋８の上端部は柱７の上方に突
出している。The PCa beam unit 1 is suspended by an appropriate suspending tool while being maintained in the shape shown in the figure, carried to a predetermined column capital, and is erected. In FIG.
The lower main reinforcement embedded in the PCa beam portion in the direction crossing the PCa beam portion 2, 6 is a hoop reinforcement disposed at the crossover portion 5, 7 is a column,
Reference numeral 8 denotes a column main bar, and the upper end of the column main bar 8 projects above the column 7.
PCa梁ユニット１の架設作業に先立って、各柱主筋８
の先端にキヤップ９を装着するとともに、これらキヤッ
プ９のうち、特定の複数の柱主筋８に装着したキヤップ
９の先端を柱主筋８の先端に装着したキヤップ９の先端
よりも上位にしておくが、このキヤップ９は、例えばス
テンレススチール製で、その先端はペン先のように尖っ
ている。Prior to the erection work of the PCa beam unit 1, each column main reinforcement 8
The cap 9 is attached to the tip of the column 9, and among these caps 9, the tip of the cap 9 attached to the specific plurality of pillar main bars 8 is placed higher than the tip of the cap 9 attached to the tip of the pillar main bar 8. The cap 9 is made of, for example, stainless steel, and its tip is pointed like a pen tip.
どの位置の柱主筋８に装着したキヤップ９の先端を上
位にするかは、柱主筋８が通ることになる交叉部５にお
ける筋材間のクリアランスの小さいところ、すなわち、
柱主筋８の先端が通りにくいところということで定める
が、通常は、図示のように四隅に位置する柱主筋８のキ
ヤップ９の先端を上位にする。The position of the tip of the cap 9 attached to the column main bar 8 at which position is higher is determined by the place where the clearance between the struts at the intersection 5 through which the column main bar 8 passes is small, that is,
Although it is determined that the tip of the column main bar 8 is difficult to pass through, usually, the tip of the cap 9 of the column main bar 8 located at the four corners as shown is higher.
特定のキヤップ９の先端を上位にする手段としては、
柱主筋８の上端のレベルが同じ場合は、図示のようにキ
ヤップ９の長さを変えるのが一般的であるが、柱主筋８
の上端のレベルを変えて同じ長さのキヤップ９を用いる
ようにしてもよい。As means to make the tip of a specific cap 9 higher,
When the level of the upper end of the column main bar 8 is the same, it is general to change the length of the cap 9 as shown in the figure.
The cap 9 having the same length may be used by changing the level of the upper end of the cap.
以上のようにして柱主筋８の先端にキヤップを装着し
た状態で、PCa梁ユニット１の架設を行うと、先ず、特
定の複数の柱主筋８に装着したキヤップ９が交叉部５に
おける筋材間の間隙を通り、次いで、他の柱主筋８に装
着したキヤップ９も筋材間の間隙を通って、柱主筋８と
梁の筋材との衝突が避けられ、架設が円滑に行われるこ
とは、実証済みである。When the PCa beam unit 1 is erected with the cap attached to the tip of the column main reinforcement 8 as described above, first, the gaps 9 mounted on the specific plurality of column main reinforcements 8 are interposed between the reinforcement members at the intersection 5. Then, the cap 9 attached to the other column main reinforcement 8 also passes through the gap between the reinforcements, so that collision between the column main reinforcement 8 and the beam reinforcement is avoided, and the erection is performed smoothly. Proven.
請求項（２）の発明における先組み梁鉄筋体は、交叉
する２方向の梁鉄筋を組み立てて、十型、Ｔ型、Ｌ型等
に形成されており、柱頭部に架設した梁型枠の中に建て
込まれるものであるが、この先組み梁鉄筋体の建て込み
の際にも、予め、柱主筋８の先端にキヤップ９を装着す
るとともに、これらキヤップ９のうち、特定の複数の柱
主筋８に装着したキヤップ９の先端を他の柱主筋８の先
端に装着したキヤップ９の先端よりも上位にしておくこ
とにより、建込み作業が円滑に行われることは、請求項
（１）の発明の場合と同様である。The pre-assembled beam reinforcing member according to the invention of claim (2) is formed by assembling beam beams in two directions crossing each other to form a ten-shaped, T-shaped, L-shaped, or the like. When the pre-assembled beam reinforcing member is to be built in, the cap 9 is attached to the tip of the column main bar 8 in advance, and a specific plurality of column main bars among these caps 9 are installed. The invention according to claim (1), wherein by setting the tip of the cap 9 attached to the tip 8 to be higher than the tip of the cap 9 attached to the tip of the other main bar 8, the construction work can be performed smoothly. Is the same as
（発明の効果） 請求項（１）の発明においては、交叉する２方向の梁
の各端部の所定長部分が少なくとも下ば主筋を埋め込ん
だPCa梁部として形成されているPCa梁ユニットを柱頭部
に架設する際に、柱主筋の先端がPCa梁ユニットの筋材
に当たって架設が円滑に行われないという問題点が完全
に解消され、また、請求項（２）の発明においては、交
叉する２方向の梁鉄筋を組み立てて形成した先組み梁鉄
筋体を柱頭部に架設した梁型枠内に建て込む際に、柱主
筋の先端が先組み梁鉄筋体の筋材に当たって建込みが円
滑に行われないという問題点がこれまた完全に解消され
る。(Effect of the Invention) In the invention according to claim (1), a PCa beam unit in which a predetermined length portion of each end of a beam in two directions intersecting is formed as a PCa beam portion in which a main reinforcement is embedded at least below the stigma is used. At the time of erection on the part, the problem that the tip of the column main bar hits the reinforcing member of the PCa beam unit and the erection is not carried out smoothly is completely solved, and in the invention of claim (2), When the pre-assembled beam reinforced body formed by assembling beam reinforcements in the direction is built into the beam formwork erected on the column cap, the tip of the column main bar hits the reinforcement of the pre-assembled beam reinforced body, and the building is smoothly performed. The problem of not being solved is also completely eliminated.
図面は請求項（１）の発明の実施態様の説明図であっ
て、第１図（Ａ），（Ｂ），（Ｃ）はPCa梁ユニットの
形成態様を示す平面図、第２図はPCa梁ユニットを架設
する直前の状態を示す側面図である。 1:PCa梁ユニット、2:PCa梁部、3,3′：下ば主筋、5:交
叉部、6:フープ筋、7:柱、8:柱主筋、9:キヤップ。The drawings are explanatory views of the embodiment of the invention of claim (1), wherein FIGS. 1 (A), (B) and (C) are plan views showing a form of forming a PCa beam unit, and FIG. It is a side view which shows the state just before installing a beam unit. 1: PCa beam unit, 2: PCa beam part, 3, 3 ': lower main bar, 5: crossover, 6: hoop bar, 7: column, 8: column main bar, 9: cap.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 後藤 俊二 東京都台東区台東１―２―１ 不動建設 株式会社内 (72)発明者 塩見 伊津夫 東京都台東区台東１―２―１ 不動建設 株式会社内 (72)発明者 若林 元 東京都台東区台東１―２―１ 不動建設 株式会社内 (72)発明者 池谷 建勇 東京都台東区台東１―２―１ 不動建設 株式会社内 (72)発明者 八木 敏行 東京都台東区台東１―２―１ 不動建設 株式会社内 (72)発明者 鶴山 昇 東京都台東区台東１―２―１ 不動建設 株式会社内 (72)発明者 森 浩之 東京都台東区台東１―２―１ 不動建設 株式会社内 (72)発明者 松田 國夫 東京都台東区台東１―２―１ 不動建設 株式会社内 (56)参考文献 特開 昭62−197569（ＪＰ，Ａ) 特開 昭58−98556（ＪＰ，Ａ) 特開 昭49−119427（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) E04G 21/12 105 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shunji Goto 1-2-1 Taito, Fudo Construction Co., Ltd. (72) Inventor Shiomi Itao 1-2-1 Taito, Taito-ku Tokyo Fudo Construction Co., Ltd. (72) Inventor Wakabayashi Gen, 1-2-1 Taito, Taito-ku, Tokyo Fudo Construction Co., Ltd. (72) Inventor Ikeni Tateyu 1-2-1, Taito, Taito-ku, Tokyo Fudo Construction Co., Ltd. (72) Invention Toshiyuki Yagi 1-2-1, Taito, Taito-ku, Tokyo Fudo Construction Co., Ltd. (72) Inventor Noboru Tsuruyama 1-2-1, Taito, Taito-ku, Fudo Construction Co., Ltd. (72) Inventor Hiroyuki Mori Taito, Tokyo 1-2-1 Taito-ku, Fudo Construction Co., Ltd. (72) Inventor Kunio Matsuda 1-2-1, Taito, Taito-ku, Tokyo Fudo Construction Co., Ltd. (56) References JP-A-62-197569 JP, A) JP Akira 58-98556 (JP, A) JP Akira 49-119427 (JP, A) (58 ) investigated the field (Int.Cl. 6, DB name) E04G 21/12 105
Claims (2)
とも下ば主筋を埋め込んだPCa梁部として形成されてい
るPCa梁ユニットを柱頭部に架設する際に、予め、柱頭
部に突出している柱主筋の各上端に先端が尖ったキヤッ
プを装着するとともに、特定の複数の柱主筋に装着され
たキヤップの先端を他の柱主筋に装着されたキヤップの
先端より上位にしておくことを特徴とする柱主筋上端の
処置方法。When a PCa beam unit in which a predetermined length portion of each end of a beam in two directions is formed as a PCa beam portion having at least a lower main bar embedded therein is erected on the column capital, the beam is previously mounted on the column capital. Attach caps with sharp tips at the upper ends of the protruding pillar bars, and keep the tips of the caps attached to specific pillar pillars higher than the tips of the caps attached to other pillar bars. A method for treating the upper end of a column main muscle, characterized by the following.
した先組み梁鉄筋体を柱頭部に架設した梁型枠内に建て
込む際に、予め、柱頭部に突出している柱主筋の各上端
に先端が尖ったキヤップを装着するとともに、特定の複
数の柱主筋に装着されたキヤップの先端を他の柱主筋に
装着されたキヤップの先端より上位にしておくことを特
徴とする柱主筋上端の処置方法。2. When a pre-assembled beam reinforcing bar formed by assembling two-way beam reinforcing bars intersecting with each other is built into a beam formwork erected on the column capital, each of the column main reinforcing bars projecting from the column capital is previously provided. A cap having a sharpened tip at its upper end, and the tip of a cap attached to a specific plurality of pillar main bars being higher than the tip of a cap attached to another pillar main bar. Treatment method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8828690A JP2906168B2 (en) | 1990-04-04 | 1990-04-04 | How to treat the upper end of column main bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8828690A JP2906168B2 (en) | 1990-04-04 | 1990-04-04 | How to treat the upper end of column main bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03287984A JPH03287984A (en) | 1991-12-18 |
| JP2906168B2 true JP2906168B2 (en) | 1999-06-14 |
Family
ID=13938666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8828690A Expired - Fee Related JP2906168B2 (en) | 1990-04-04 | 1990-04-04 | How to treat the upper end of column main bar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2906168B2 (en) |
-
1990
- 1990-04-04 JP JP8828690A patent/JP2906168B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03287984A (en) | 1991-12-18 |
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