JPH0238733B2 - - Google Patents
Info
- Publication number
- JPH0238733B2 JPH0238733B2 JP61081431A JP8143186A JPH0238733B2 JP H0238733 B2 JPH0238733 B2 JP H0238733B2 JP 61081431 A JP61081431 A JP 61081431A JP 8143186 A JP8143186 A JP 8143186A JP H0238733 B2 JPH0238733 B2 JP H0238733B2
- Authority
- JP
- Japan
- Prior art keywords
- bag
- concrete
- cavity
- formwork
- column
- 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
- 238000009415 formwork Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 238000004581 coalescence Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Steps, Ramps, And Handrails (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、コンクリート構造物における柱体
施工方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for constructing columns in concrete structures.
（従来の技術）
コンクリート構造物に柱体を植設する方法とし
て、実公昭53−30819号、実開昭51−27408号、同
49−97927号公報に記載されたものが知られてい
る。これらの公報に開示されている技術は、構造
物の型枠内に、膨出・収縮可能な袋体を膨出させ
た状態で配置し、コンクリートを型枠内に打込み
且つ養生させた後に袋体を収縮させて取り出し、
ここに形成された空部に柱体の下端部を入れ、残
存部に経時固化物を打込むという技術である。(Prior art) As methods for installing columns in concrete structures, Japanese Utility Model Publication No. 53-30819, Utility Model Application Publication No. 51-27408,
The one described in Japanese Patent No. 49-97927 is known. The technology disclosed in these publications involves placing an inflatable and deflated bag inside the formwork of a structure, pouring concrete into the formwork and curing it, and then removing the bag. Contract your body and take it out,
This technique involves inserting the lower end of the column into the cavity formed here, and filling the remaining part with a material that has solidified over time.
（発明が解決しようとする課題）
上記袋体によつて作成される空部の深さは袋体
の高さに一致し、したがつて異なつた空部深さが
要求される場合には、別途高さの異なる袋体を用
意しなければならない。(Problem to be Solved by the Invention) The depth of the cavity created by the bag corresponds to the height of the bag, so if a different cavity depth is required, Separate bags with different heights must be prepared.
本発明は上記問題点を解決することを課題とし
てなされた。 The present invention has been made to solve the above problems.
（課題を解決するための手段）
すなわち本発明は、説明の便宜上、実施例にて
付した符号を用いて記すと、構造物用の型枠Ｅ内
に、コンクリートＡに侵されず、コンクリートＡ
養生後の構造物Ｂから離反が容易であり且つ伸縮
可能な袋体１を膨出させて配置し、前記型枠Ｅ内
にコンクリートＡを流し込んで養生し、その後袋
体１内の空気を放出せしめ、袋体１を収縮させて
構造物Ｂから取り外し、かくして構造物に上部の
開口した空部Ｃを形成した後、該空部Ｃに柱体８
の下端部を入れ、残空部に構造物Ｂと合体する経
時固化物Ｄを詰め、該経時固化物Ｄの養生により
柱体８を植設するコンクリート構造物における柱
体施工方法であつて、前記袋体１として、谷部３
と山部４とが上下方向に交互に形成された蛇腹状
胴部２を有するものを用意し、袋体１を保持する
支持具６の固定桟７に胴部係止孔１７を形成して
おき、前記袋体１を配設するに当り、形成すべき
空部Ｃの深さに合せて一の谷部３を選択し、該選
択された谷部３を前記胴部係止孔１７に係止す
る、ことをその要旨としている。(Means for Solving the Problem) That is, for convenience of explanation, the present invention is described using the reference numerals given in the examples.
A bag body 1 that can be easily separated from the structure B after curing and is expandable is placed in a bulging manner, concrete A is poured into the formwork E and cured, and then the air inside the bag body 1 is released. Then, the bag 1 is deflated and removed from the structure B, thus forming a cavity C with an open top in the structure, and then a column 8 is inserted into the cavity C.
A column construction method for a concrete structure in which the lower end of the concrete structure is inserted, the remaining space is filled with a material D that solidifies over time to be combined with the structure B, and a column 8 is planted by curing the material D that solidifies over time, As the bag body 1, the valley part 3
A bellows-shaped body 2 in which ridges and peaks 4 are formed alternately in the vertical direction is prepared, and a body locking hole 17 is formed in the fixing bar 7 of the support 6 that holds the bag 1. Then, when arranging the bag 1, select one trough 3 according to the depth of the cavity C to be formed, and lock the selected trough 3 in the body locking hole 17. Its gist is to do so.
（実施例）
以下、本発明によるコンクリート構造物の柱体
施工方法を図面に基づき説明すると、Ｅはコンク
リートＡを流し込むために構成する構造物用の型
枠、１は型枠Ｅ内に配置する袋体で、該袋体１は
コンクリートＡによつて侵されず、コンクリート
Ａの養生によつて形成された構造物Ｂから離反が
容易であり、且つ伸縮可能な強靭ゴム、又は合成
樹脂より形成されている。そして胴部２は少なく
とも上下に伸縮し得るよう蛇腹状を成し、即ち胴
部２の上から下まで山部３と谷部４が左右にジグ
ザグ状か波状を成し、上下方向に交互に積層して
蛇腹状とされている（以下、「胴部」を「蛇腹状
胴部２」と称する）。上記蛇腹状胴部２の上壁１
２に注入口５が一体に設けられ、該注入口５内に
密閉具１５が内蔵されており、この結果、上記注
入口５から蛇腹状胴部２へ充填される空気によつ
て袋体１が全体的に膨出し、空気の放出にて原状
に収縮復帰する。つまり、袋体１は、空気を放出
した平常状態における蛇腹胴部２の山部外径ｒか
ら、空気を充填した膨出状態における蛇腹胴部２
の谷部内径Ｒが大きくなるまで膨出可能とされて
いる。注入口５に内蔵する密閉具１５としては、
タイヤチユーブに用いられている空気弁が最適で
ある。６は袋体１を保持する支持具であつて、該
支持具６は上記型枠Ｅに取付けられる固定桟７に
膨出状態における蛇腹状胴部２の谷部３に嵌挿
し、山部４に係止する胴部係止孔１７を有してい
る。この支持具６は、係止孔１７に袋体１を固定
した後、これを型枠Ｅに取付け、袋体１の注入口
５より内部に空気を充填し、蛇腹状胴部２を全体
的に膨出せしめ、型枠Ｅ内に膨出された蛇腹状胴
部２を吊下げ状態に配置する。型枠Ｅ内に膨出さ
れた蛇腹状胴部２を吊下げた後、型枠Ｅ内にコン
クリートＡが流し込まれ、その養生後、即ちコン
クリートＡが養生して構造物Ｂとなつた後、袋体
１の注入口５を開口し、蛇腹状胴部２内と外部を
連通状態にすれば、膨出状態にあつた袋体１は弾
力によつて復帰方向に収縮し、充填されていた空
気を外部に放出しながら収縮し、その収縮により
構造物Ｂから離反し、構造物Ｂに膨出していた袋
体１と同等の空部Ｃが形成される。袋体１を空部
Ｃの最小内径R′より小さくなるまで収縮させ、
原状に弾性復帰した所で、袋体１を固定している
支持具６を型枠Ｅから取り外す。すなわち、構造
物Ｂの柱体取付け位置に、上部に向けて開口する
空部Ｃが形成されるのである。８は空部Ｃを利用
して植設する柱体で、柱体８は空部Ｃの最小内径
R′より小さい横断面を成し、その下端に座板１
８を取付け、柱体８の下部を空部Ｃ内に挿入した
後、残空部Ｃに構造物Ｂと容易に合体するコンク
リートＡやモルタル等の経時固化物Ｄを詰める。
つまり、経時固化物Ｄの養生固化によつて、即ち
経時固化物Ｄがそのまま構造物Ｂの一部となり、
柱体８を不動に植設する。型枠Ｅは従来通りコン
クリートＡの養生を待つて取外すものである。(Example) Hereinafter, the method for constructing a column for a concrete structure according to the present invention will be explained based on the drawings. E is a formwork for a structure constructed for pouring concrete A, and 1 is placed in formwork E. The bag body 1 is not eroded by the concrete A, is easily separated from the structure B formed by curing the concrete A, and is made of stretchable strong rubber or synthetic resin. has been done. The body 2 has a bellows shape so that it can expand and contract at least vertically, that is, the peaks 3 and troughs 4 from the top to the bottom of the body 2 form a zigzag or wavy shape from side to side, alternating vertically. They are laminated to form a bellows-like shape (hereinafter, the "body" will be referred to as "the bellows-like body 2"). Upper wall 1 of the bellows-shaped body 2
2 is integrally provided with an injection port 5, and a sealing device 15 is built in the injection port 5. As a result, the bag body 1 is The entire body swells, and when air is released, it contracts and returns to its original state. In other words, the bag body 1 is different from the outside diameter r of the peak part of the bellows body 2 in the normal state where air is released, to the bellows body 2 in the bulged state filled with air.
It is possible to bulge out until the inner diameter R of the trough becomes large. The sealing device 15 built into the injection port 5 includes:
The best option is the air valve used in tire tubes. Reference numeral 6 denotes a support for holding the bag body 1, and the support 6 is inserted into the trough 3 of the bellows-shaped trunk 2 in the bulged state on the fixed crosspiece 7 attached to the formwork E, and the ridge 4 It has a trunk locking hole 17 that locks into the body. This support 6 is made by fixing the bag 1 in the locking hole 17, attaching it to the formwork E, and filling the inside with air through the injection port 5 of the bag 1, so that the bellows-shaped body 2 is completely fixed. The bellows-shaped trunk 2 is bulged out in the formwork E and placed in a suspended state. After suspending the bellows-shaped body 2 bulged within the formwork E, concrete A is poured into the formwork E, and after curing, that is, after the concrete A has cured and becomes the structure B, When the inlet 5 of the bag body 1 is opened and the inside of the bellows-shaped body 2 is communicated with the outside, the bag body 1 which was in an inflated state contracts in the return direction due to its elasticity, and is filled. It contracts while releasing air to the outside, and as a result of the contraction, it separates from the structure B, and a cavity C equivalent to the bulging bag 1 is formed in the structure B. Shrink the bag 1 until it becomes smaller than the minimum inner diameter R' of the empty part C,
When the bag 1 is elastically returned to its original state, the support 6 fixing the bag 1 is removed from the formwork E. That is, a cavity C that opens upward is formed at the column attachment position of the structure B. 8 is a column to be planted using the empty space C, and the column 8 has the minimum inner diameter of the empty space C.
It forms a cross section smaller than R', and there is a seat plate 1 at its lower end.
8 and inserting the lower part of the column 8 into the cavity C, the remaining cavity C is filled with a material D that hardens over time, such as concrete A or mortar, which easily combines with the structure B.
In other words, by curing and solidifying the material D solidified over time, the material D solidified over time becomes part of the structure B as it is,
The pillar body 8 is immovably planted. As before, formwork E is removed after concrete A has cured.
本発明による柱体施工方法は上記の如く、先ず
支持具６に袋体１を係止し、その支持具６を型枠
Ｅに取付け、袋体１に空気を充填してこれを膨出
した後、袋体１を配置した型枠Ｅ内にコンクリー
トＡを流し込む。次いでコンクリートＡの養生
後、袋体１より空気を放出すれば、袋体１は弾力
にて原状まで収縮し、収縮によりコンクリートＡ
の養生構造物Ｂから離反する。袋体１が原状に収
縮復帰した後、袋体１と支持具６を取外すと共
に、型枠Ｅを取外せば、構造物Ｂには膨出された
袋体１と同等の空部Ｃが形成される。 As described above, the column construction method according to the present invention involves first securing the bag 1 to the support 6, attaching the support 6 to the formwork E, and filling the bag 1 with air to inflate it. After that, concrete A is poured into the formwork E in which the bag body 1 is placed. Next, after the concrete A is cured, if air is released from the bag 1, the bag 1 will shrink to its original state due to its elasticity, and the concrete A will shrink due to the contraction.
away from the curing structure B. After the bag 1 has shrunk and returned to its original state, the bag 1 and the support 6 are removed, as well as the formwork E, and a cavity C equivalent to the expanded bag 1 is formed in the structure B. be done.
構造物Ｂの空部Ｃに対する柱体８の植設手段
は、従来と同様であるが、空部Ｃの内面は内外に
凹凸しているので、構造物Ｂとその空部Ｃに後か
ら詰めた経時固化物Ｄの合体が一段と上向する。 The means for planting the pillars 8 in the cavity C of the structure B is the same as in the conventional method, but since the inner surface of the cavity C is uneven inside and outside, the structure B and its cavity C are filled later. The coalescence of the solidified material D over time further increases.
また、支持具６に袋体１を係止する場合、支持
具固定桟７の係止孔１７に蛇腹胴部２の山部３を
係止することによつて、即ち上から何番目の山部
３に固定桟７を係止するかによつて、膨出袋体１
にて形成される空部深さＨを加減することができ
る。 In addition, when locking the bag 1 to the support 6, by locking the peak 3 of the bellows trunk 2 to the locking hole 17 of the support fixture fixing crosspiece 7, it is possible to Depending on whether the fixing bar 7 is locked to the part 3, the bulging bag body 1
The depth H of the cavity formed can be adjusted.
なお、本発明による柱体施工方法は上記実施例
に限定されるものではなく、型枠Ｅ内に配置する
膨出袋体１の外面にコンクリート離型剤を塗布す
れば、構造物Ｂから袋体１を容易に収縮して離反
することができる。また、残空部Ｃに詰める経時
固化物Ｄに樹脂モルタルやボンドを使用すること
もできる。さらに支持具６の取付手段、及び袋体
１とその柱入口５に内蔵する密閉具１５等の形状
構造は、本発明の要旨に反しない限り適宜変更可
能である。 Note that the column construction method according to the present invention is not limited to the above-mentioned embodiment, and if a concrete mold release agent is applied to the outer surface of the expanded bag body 1 placed in the formwork E, the bag can be removed from the structure B. The body 1 can be easily contracted and separated. Moreover, resin mortar or bond can also be used for the time-solidified material D to be filled into the remaining space C. Furthermore, the attachment means of the support 6 and the shape and structure of the bag 1 and the sealing device 15 built into the column entrance 5, etc. can be changed as appropriate as long as they do not go against the gist of the present invention.
（発明の効果）
以上説明したように、本発明は、構造物用の型
枠Ｅ内に、コンクリートＡに侵されず、コンクリ
ートＡ養生後の構造物Ｂから離反が容易であり且
つ伸縮可能な袋体１を膨出させて配置し、前記型
枠Ｅ内にコンクリートＡを流し込んで養生し、そ
の後袋体１内の空気を放出せしめ、袋体１を収縮
させて構造物Ｂから取り外し、かくして構造物に
上部の開口した空部Ｃを形成した後、該空部Ｃに
柱体８の下端部を入れ、残空部に構造物Ｂと合体
する経時固化物Ｄを詰め、該経時固化物Ｄの養生
により柱体８を植設するコンクリート構造物にお
ける柱体施工方法であつて、前記袋体１として、
谷部３と山部４とが上下方向に交互に形成された
蛇腹状胴部２を有するものを用意し、袋体１を保
持する支持具６の固定桟７に胴部係止孔１７を形
成しておき、前記袋体１を配設するに当り、形成
すべき空部Ｃの深さに合せて一の谷部３を選択
し、該選択された谷部３を前記胴部係止孔１７に
係止するという技術手段によつており、蛇腹状胴
部の谷部を利用して支持具を任意の高さに係止で
きるため、一つの袋体で任意の空部の深さを得る
ことができ、用意すべき袋体の数を減少せしめ
て、道具管理が楽になるという効益を奏する。(Effects of the Invention) As explained above, the present invention provides a formwork E for a structure that is not corroded by the concrete A, can be easily separated from the structure B after the concrete A has cured, and is expandable. The bag 1 is expanded and arranged, concrete A is poured into the form E and cured, and then the air inside the bag 1 is released, and the bag 1 is deflated and removed from the structure B. After forming a cavity C with an open top in the structure, the lower end of the column 8 is inserted into the cavity C, and the remaining cavity is filled with a material D that solidifies over time to be combined with the structure B. A column construction method in a concrete structure in which a column 8 is planted by curing D, wherein the bag 1 includes:
A bellows-shaped trunk 2 in which troughs 3 and peaks 4 are alternately formed in the vertical direction is prepared, and a trunk locking hole 17 is formed in the fixing bar 7 of the support 6 that holds the bag 1. When arranging the bag body 1, one trough 3 is selected according to the depth of the cavity C to be formed, and the selected trough 3 is inserted into the trunk locking hole 17. The support device can be locked at any height using the valley of the bellows-shaped body, so any hollow depth can be obtained with one bag body. This has the effect of reducing the number of bags to be prepared and making tool management easier.
第１図ないし第９図は従来方法による柱体の施
工例を示す工程図、第１０図は本発明に用いる袋
体の斜視図、第１１図は袋体の係止例を示す断面
図、第１２図は密閉具の構造例を示す断面図、第
１３図は固定桟の斜視図である。
Ａ……コンクリート、Ｂ……構造物、Ｃ……空
部、Ｄ……経時固化物、Ｅ……型枠、１……袋
体、２……蛇腹状胴部、３……谷部、４……山
部、６……支持具、７……固定桟、８……柱体、
１７……胴部係止孔、R′……空部最小内径、ｒ
……山部外径、Ｈ……空部深さ。
1 to 9 are process diagrams showing an example of constructing a column by a conventional method, FIG. 10 is a perspective view of a bag used in the present invention, and FIG. 11 is a sectional view showing an example of locking the bag. FIG. 12 is a sectional view showing an example of the structure of the sealing device, and FIG. 13 is a perspective view of the fixing bar. A...Concrete, B...Structure, C...Empty space, D...Solidified material over time, E...Formwork, 1...Bag body, 2...Bag-shaped body, 3...Trough, 4...Mountain part, 6...Support, 7...Fixed beam, 8...Column,
17...Body locking hole, R'...Minimum inner diameter of cavity, r
...Outer diameter of the mountain part, H...Depth of the hollow part.
Claims (1)
されず、コンクリートＡ養生後の構造物Ｂから離
反が容易であり且つ伸縮可能な袋体１を膨出させ
て配置し、前記型枠Ｅ内にコンクリートＡを流し
込んで養生し、その後袋体１内の空気を放出せし
め、袋体１を収縮させて構造物Ｂから取り外し、
かくして構造物に上部の開口した空部Ｃを形成し
た後、該空部Ｃに柱体８の下端部を入れ、残空部
に構造物Ｂと合体する経時固化物Ｄを詰め、該経
時固化物Ｄの養生により柱体８を植設するコンク
リート構造物における柱体施工方法において、 前記袋体１として、谷部３と山部４とが上下方
向に交互に形成された蛇腹状胴部２を有するもの
を用意し、袋体１を保持する支持具６の固定桟７
に胴部係止孔１７を形成しておき、 前記袋体１を配設するに当り、形成すべき空部
Ｃの深さに合せて一の谷部３を選択し、該選択さ
れた谷部３を前記胴部係止孔１７に係止すること
を特徴とするコンクリート構造物における柱体施
工方法。[Scope of Claims] 1. A bag 1 that is not corroded by concrete A, can be easily separated from structure B after curing concrete A, and is expandable and retractable is bulged in formwork E for a structure. The concrete A is poured into the formwork E and cured, and then the air inside the bag body 1 is released, the bag body 1 is shrunk and removed from the structure B,
After forming a cavity C with an open top in the structure in this way, the lower end of the column 8 is inserted into the cavity C, and the remaining cavity is filled with a material D that solidifies over time to be combined with the structure B. In a column construction method for a concrete structure in which columns 8 are planted by curing material D, the bag body 1 includes a bellows-shaped body 2 in which valleys 3 and peaks 4 are alternately formed in the vertical direction. A fixing crosspiece 7 of the support 6 that holds the bag body 1 is prepared.
A trunk locking hole 17 is formed in the body, and when disposing the bag 1, one trough 3 is selected according to the depth of the cavity C to be formed, and the selected trough 3 is A method for constructing a column in a concrete structure, the method comprising: locking in the body locking hole 17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8143186A JPS62236955A (en) | 1986-04-09 | 1986-04-09 | Construction of pillar body in concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8143186A JPS62236955A (en) | 1986-04-09 | 1986-04-09 | Construction of pillar body in concrete structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62236955A JPS62236955A (en) | 1987-10-17 |
| JPH0238733B2 true JPH0238733B2 (en) | 1990-08-31 |
Family
ID=13746191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8143186A Granted JPS62236955A (en) | 1986-04-09 | 1986-04-09 | Construction of pillar body in concrete structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62236955A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02252847A (en) * | 1989-03-28 | 1990-10-11 | Kanto Jiyuushi Kk | Mounting device for hand rail in concrete building |
| JPH0522576Y2 (en) * | 1989-03-28 | 1993-06-10 | ||
| JP6468977B2 (en) * | 2015-09-10 | 2019-02-13 | 鹿島建設株式会社 | Formwork construction method and formwork structure |
| JP6874051B2 (en) * | 2019-05-16 | 2021-05-19 | 青木あすなろ建設株式会社 | Groove construction method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5127408B2 (en) * | 1973-10-31 | 1976-08-12 | ||
| JPS5330819U (en) * | 1976-08-23 | 1978-03-16 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4997927U (en) * | 1972-12-11 | 1974-08-23 | ||
| JPS5127408U (en) * | 1974-08-21 | 1976-02-28 |
-
1986
- 1986-04-09 JP JP8143186A patent/JPS62236955A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5127408B2 (en) * | 1973-10-31 | 1976-08-12 | ||
| JPS5330819U (en) * | 1976-08-23 | 1978-03-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62236955A (en) | 1987-10-17 |
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