JPS58598A - Method of control construction of crack of wall-shaped concrete structure - Google Patents
Method of control construction of crack of wall-shaped concrete structureInfo
- Publication number
- JPS58598A JPS58598A JP56097010A JP9701081A JPS58598A JP S58598 A JPS58598 A JP S58598A JP 56097010 A JP56097010 A JP 56097010A JP 9701081 A JP9701081 A JP 9701081A JP S58598 A JPS58598 A JP S58598A
- Authority
- JP
- Japan
- Prior art keywords
- wall
- rod
- concrete
- concrete structure
- shaped
- 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.)
- Granted
Links
Landscapes
- Lining And Supports For Tunnels (AREA)
- Building Environments (AREA)
- Road Paving Structures (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
この発明に、壁状のコンクリート構造物の１１部に生じ
るひひわれの発生箇所？ Ｉ）ＩＪ ｌ１ｌｌ ｆ ４
−のに好適な工法に関する。[Detailed Description of the Invention] This invention includes locations where cracks occur in 11 parts of a wall-like concrete structure? I) IJ l1ll f 4
-Relating to a construction method suitable for.
一般に、水槽、構脚、地下鉄の箱形ずい道などにみられ
る壁状のコンクリート構造物で框、！ず基礎ｓｖｇ形凝
向凝固、その後基礎部の上にＩ１部ｆＫ形する工すにり
、ている。そのため、１１部のコンクＩＪ −トｔｆｆ
Ｊｌ固収縮するＳに基礎部にぶって拘束され、仁の結果
壁部にひひわれが発生丁ｂ・（＃ＩＩＢ！Ｊおよび第２
図参照］
このようなひひわれか発生丁６箇所か制御する方法とし
てに、−くつかの方法か考えられるか。A wall-like concrete structure commonly found in water tanks, trestles, subway box tunnels, etc. First, the foundation svg shape is coagulated and solidified, and then the I1 part fK shape is formed on the foundation. Therefore, 11 parts of Conc IJ-tff
Jl is restrained by the rigid shrinking S on the foundation, and as a result of the bending, cracks occur on the wall.
(See figure) Can you think of some methods to control the occurrence of such cracks in the six locations?
その一つト１．てコントロールジヨイント法かある、こ
のコントロールジヨイント法にあって框、第３図に示す
工うに、コンクリート躯体１の外ｌ１１１に欠損１＄２
１ｒ＆ｔｊたり、あるいはコンクリート躯体１円にパイ
プ３ｆ埋め込んだのしてその箇所にひひねれが発生する
Ｌうにしている。One of them is 1. There is a control joint method.In this control joint method, there is a defect 1$2 on the outside l111 of the concrete frame 1, as shown in Figure 3.
1r&tj, or by burying 3f of pipes in one circle of concrete frame so that twisting occurs at that location.
ｒころが、この１つな欠損部にひひわれか発生する確率
σ５０〜６０チであり、満足し！！るものでになかった
。The probability that a crack will occur in this one defective part of the r roller is 50 to 60 degrees, so I'm satisfied! ! It wasn't something I could do.
この発明に、上記事情？＊Ｊ［Ｌ、てｒ（されたもので
、所定の箇所からひひわれか発生する確率ケ大幅九同上
させることかできる壁状のコンクリート構造物のひひわ
れ制御工法？提供することｔ目的とする、
以下、この発明の工法を第４図〜第９図ケ参照ｔ、ｒｘ
から説明する。Is this invention related to the above circumstances? *J [L, TE r (The purpose is to provide a method for controlling cracks in wall-like concrete structures that can significantly increase the probability of cracks occurring from a predetermined location by nine times.) , Hereinafter, the construction method of this invention is shown in Figures 4 to 9.
I will explain from.
この発明の工法の！！！！黴に、前述１−た欠損部に加
λて、その欠ｍＷ６の底からコンクリート躯体の円方へ
向けて延びるスリン）？設け、このスリットに生じ６ノ
ツチ効果にＬつてひひわれが欠損部に発生する確率倉同
上させるＬうＫ［、た点にある。This invented construction method! ! ! ! In addition to the mold and the defect mentioned above, there is a sulin extending from the bottom of the defect mW6 in the circular direction of the concrete frame)? There is a probability that cracks will occur in the defective part due to the 6-notch effect produced in this slit.
すなわち、この工法にあっては、基礎ｓ１１のよＫ１１
部１２１成形丁ｂＫＷＩ１．、予め壁部底形用の型枠（
図示せず）の円＠ＶＣ棒状体１３？型枠の少ｑくとも一
層の内側の長手方向に互いに離間させ、かつそれぞれの
棒状体１３の長手方同會はぼ上下に１．て並べである。In other words, in this construction method, K11 of foundation s11
Part 121 molding knife bKWI1. , formwork for the bottom shape of the wall (
) circle @VC rod-shaped body 13? They are spaced apart from each other in the longitudinal direction of at least one layer of the formwork, and each rod-shaped body 13 is spaced from each other in the longitudinal direction approximately 1. It is lined up.
この棒状体１３ＫＬって壁部１２Ｋに欠損部か生じ、そ
の部分の強度が壁部１２ノ他ノｆｆｉ分ｊの相対的に低
下する。これに１って欠損部にひひわれが生じるＬうに
している８以上の点に、従来のコントロールジヨイント
法と同様である。しか暑５．この発明の工法にあってσ
、欠損部にひびわれが発生する確率を同上さぜる友め［
、棒状体１３の円ａに薄板１４？立てている。A defective portion is generated in the wall portion 12K of the rod-shaped body 13KL, and the strength of that portion is relatively reduced by an amount j of the wall portion 12. This method is similar to the conventional control joint method in that it is designed to prevent cracks from occurring at the defective portion. But it's hot 5. In the construction method of this invention, σ
, which increases the probability of cracking in the defective part [
, a thin plate 14 on the circle a of the rod-shaped body 13? It is standing.
丁ｔわち、棒状体１３の長手方向に沿ってその棒状体１
３の円ｌ＃Ｋに、鋼製の薄板１４を立てている。この薄
板１４と１．て框、 ＩＩ枠ＦＦ３にコンクリート構造
物設する際、そのコンクリートＩ’ｃ、（つで曲げられ
ぬ工うな強度が必要で、その孟つな強度を持つものなら
鋼製以外のものであっても良い。その点、第７図に示す
１うに、鋼製の薄板１４ｆ鋭角的なＶ字状にして、強度
を同上させることかできる。そ１て、この薄板１４（工
って欠損部の底から壁部１２の円方へ向けて延びるスリ
ットか生じる０このスリットにノツチ効果か働き、これ
に工って欠損部にひひわれが発生する確率を大幅に同上
させることができる。しかもこの場合、欠損部を設は皮
部分において框、第５図に示す１つＫ。That is, along the longitudinal direction of the rod-shaped body 13, the rod-shaped body 1
A thin steel plate 14 is erected on circle l#K of 3. This thin plate 14 and 1. When constructing a concrete structure in Frame II Frame FF3, the concrete must be strong enough to not bend, and if it has that strength it must be made of something other than steel. In this respect, as shown in Fig. 7, the strength can be increased by making the thin steel plate 14f into an acute V-shape. A slit extending from the bottom in the circular direction of the wall portion 12 is generated.The notch effect acts on this slit, and by working on this, the probability of cracks occurring in the defective part can be greatly increased.Furthermore, in this case , the defect is placed in the skin part of the stile, one K shown in Figure 5.
壁部１２の長手方向に走る鉄筋１５ｆ間引き、これに工
って欠損部にひひ割れか発生する確率？Ｌり一層同上さ
せている。What is the probability that cracks will occur in the defective part of the thinning of the reinforcing bars 15f running in the longitudinal direction of the wall part 12? L is even more similar to the above.
なお、棒状体１３おｌひ薄板１４についてに。In addition, regarding the rod-shaped body 13 and the thin plate 14.
型枠内にコンクリートを打設し、そのコンクリートが凝
結する前に取り出しておく、この場合、それらｔ上方に
引き抜くことも考えられるが、横方向に引・き抜く万が
容易である。その意味から棒状体の断面形状を台）吟と
じて−るが、その他所面形状か三角形あるいａ半円径等
、先細りのものとするのか良い、そＬ２て、棒状体１３
おＬひ薄板１４ケ＊の外し、壁部１２にひひわれが生じ
友後、欠損＠Ｔｉｃモルタル、合Ｈ，樹脂等？充填し、
防水上ある−に美感上の対策を施すのが望フしい。その
点この実施例でに、欠損部の底にポリエチレンホームを
形放し、その上にシリコンを充填罷１．さらにその表面
お工ひその附近のコンクリート表向にエポキシ樹脂ｆ１
１１１布Ｉ７ている。 ４また、
この発明の工法６ｃＬると、ひひわれがほぼ確実に欠損
部に発生するから、例えば水槽の側壁？この工法で構築
丁す場合、前ｔつて防水処塩を施しておくことができる
。例オは第９−に示すＬつＶＣ，止水板１６？欠損部に
対同配置して補強筋１７で支え、その１１コンクリ−？
？打設するのである、
以上説明したＬうに、この発明の工法にＬれば。Concrete is poured into the formwork and taken out before it sets.In this case, it is possible to pull the concrete upwards, but it is easier to pull it out laterally. From this point of view, we have examined the cross-sectional shape of the rod-shaped body, but for other parts, it is better to have a tapered shape such as a triangle or a semicircular diameter.
Removal of 14 L thin plates*, cracks appeared on wall 12, missing @Tic mortar, compound H, resin, etc.? Fill and
It is desirable to take measures for waterproofing and aesthetics. In this regard, in this embodiment, a polyethylene foam was molded at the bottom of the defect, and silicon was filled on top of the foam.1. Furthermore, epoxy resin f1 is applied to the concrete surface near the surface.
111 cloth I7. 4 Also,
If the method of this invention is 6cL, fins will almost certainly occur in the defective part, so for example, on the side wall of the aquarium? When constructing using this construction method, waterproofing salt can be applied beforehand. Example O is L VC shown in No. 9-, water stop plate 16? Place it in the same direction as the defective part and support it with reinforcing bars 17.11 Concrete?
? As explained above, if the construction method of this invention is used.
壁５Ｉｆｔ形用の型枠内にコンクリートを打設丁すに際
【１．予め型枠の内側に棒状体？＆ｒｒ、しかもその棒
状体の円１Ｉｉ１に薄板１＆打ておき、その後コンクリ
ート’ｔｉｒｍ枠円に打設【、て壁部を成形するＬうＶ
Ｃシているから、欠損部の相対的な強度低下ｒｃ加λ、
薄板に１って生じるスリットにノツチ効果ケ働かすこと
かでき、これにＬつでひひわれ箇所の制御ケはぼ確実に
なし得る。１７ｔ、ひひわれ箇所を制御し、得た結果、
前もって防水上の対策ｔコンクリート打設と共にするこ
とがでＬ補修工事等の手間を省くことができｂ等の効果
を奏する。When pouring concrete into the formwork for wall 5Ift type [1. A rod-shaped body inside the formwork in advance? &rr, in addition, cast a thin plate 1&rr on the circle 1Ii1 of the rod-shaped body, and then cast it on the concrete 'tirm frame circle.
Since C is present, the relative strength of the defective part is reduced by rc and λ,
The notch effect can be applied to the slits formed in the thin plate, and the cracks can be controlled with certainty using the L. 17t, the results obtained by controlling the fin spots,
By taking waterproofing measures in advance along with concrete pouring, the labor of repair work can be saved, and effects such as b can be achieved.
集１内おＬび第２図にそれぞれひびわれの状況を示す図
で、第１図（ｊ１１框水槽の側壁の正面図、第１図（ｂ
ｌＨその側断面図、第２図（ａｌｔｆｆ箱形ずい道の正
−４第２図（ｂｌはその側断面図、第３図に従来のコン
トロールジヨイント法ケ施した壁の断面図。
第４図にこの発明の一実施例を示す平向図、第５図にそ
の一部切欠き正面図、［６図σ棒状体と薄板とを示す一
部省略斜視図、島７図お１ひ第８図にそれぞれ棒状体と
薄板との散り付は状態における断面図、第９図ａ止水板
ｆ設けた壁部の断面図である。
１１・・・基礎部、１２・・・壁部、１３・・・棒状体
、１４・・・薄板。
出願人 清水建設株式会社
第１図
（ｂ） （０）
第２図
（ｂ） （０）
第３図Figures 1 and 2 are diagrams showing the state of cracks, respectively.
lH Its side sectional view, Fig. 2 (altff Box-shaped channel - 4 Fig. 2 (bl is its side sectional view, Fig. 3 is a sectional view of the wall with the conventional control joint method applied. 5 is a partially cutaway front view of the embodiment of the present invention, FIG. Fig. 8 is a cross-sectional view of the state in which rod-shaped bodies and thin plates are scattered, and Fig. 9 is a cross-sectional view of a wall portion provided with a water stop plate f. 11... Foundation portion, 12... Wall portion, 13... Rod-shaped body, 14... Thin plate. Applicant: Shimizu Corporation Figure 1 (b) (0) Figure 2 (b) (0) Figure 3
Claims (1)
状のコンクリート構造物ケ構築丁ゐに際し、基＃郵（１
１）？成形凝固させた後、その基［１Ｂ（１１の上に設
けられた１１部成形用の蓋枠内にコンクリートを打ｆ＆
ｔ、て４１１部（１２）ｌ−辰形丁す工＠において、予
め棒状体（１３）ｌ−前記型枠の少なくとも−１の円側
の長手方向に互−に−関儂１、かつそれぞれの長手万同
管はぼ上下に回灯て並べｂｔ共ＶＣ，棒状体（１３）の
長手方向に沿ってその棒状体（］３）のＰ３ｍｒｊｎｖ
ｃｌｌｉｊｌ＆ （１４）を立てておき、その後型枠的
にコンクリートを打設（７て［１８（１２）ｌ−ｆｉ形
する１つに（，７ｔこ／−１’特徴とでるコンクリート
構造物のひびわれ制御工法。When constructing a wall-shaped concrete structure having a foundation part (11) and an upper wall part (12),
1)? After forming and solidifying, concrete is poured into the lid frame for forming part 11 provided on top of the base [1B (11).
t, te 411 parts (12) l- In the tatsu-shaped chisel @, the rod-shaped bodies (13) The longitudinal mando tubes are arranged in a vertically rotating manner, bt and VC, and P3mrjnv of the rod-shaped body (]3) along the longitudinal direction of the rod-shaped body (13).
Cllijl & (14), then pour concrete in formwork (7 to [18 (12) l-fi shape (,7t/-1' to crack the concrete structure that appears). Controlled construction method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56097010A JPS58598A (en) | 1981-06-23 | 1981-06-23 | Method of control construction of crack of wall-shaped concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56097010A JPS58598A (en) | 1981-06-23 | 1981-06-23 | Method of control construction of crack of wall-shaped concrete structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58598A true JPS58598A (en) | 1983-01-05 |
| JPS6156393B2 JPS6156393B2 (en) | 1986-12-02 |
Family
ID=14180332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56097010A Granted JPS58598A (en) | 1981-06-23 | 1981-06-23 | Method of control construction of crack of wall-shaped concrete structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58598A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59128813U (en) * | 1983-02-16 | 1984-08-30 | 清水建設株式会社 | Concrete wall with crack-inducing structure |
| JPS59154298A (en) * | 1983-02-21 | 1984-09-03 | 株式会社ケ−・エフ・シ− | Method of executing concrete lining to whole section of tunnel and formwork for execution of said method |
| JPS59217900A (en) * | 1983-05-26 | 1984-12-08 | フジタ工業株式会社 | Method of placing construction of lining concrete |
| JPS608306U (en) * | 1983-06-27 | 1985-01-21 | 株式会社竹中工務店 | Crack-inducing joints in concrete buildings |
| JPS6085139A (en) * | 1983-10-13 | 1985-05-14 | フジタ工業株式会社 | Crack inducing structure in reinforced concrete structure |
| JPS60126448A (en) * | 1983-12-13 | 1985-07-05 | 株式会社大林組 | Crack inducing structure of concrete structure |
| JPS60152749A (en) * | 1984-01-17 | 1985-08-12 | 清水建設株式会社 | Outer wall crack inducing and water stopping plate |
| JPS61165441A (en) * | 1985-01-16 | 1986-07-26 | 鹿島建設株式会社 | Apparatus for inducing crack of concrete earthquake-proof wall |
| JPS6317208U (en) * | 1986-07-21 | 1988-02-04 | ||
| JPS63151740A (en) * | 1986-12-13 | 1988-06-24 | 清水建設株式会社 | Drain decorative joint material and execution thereof |
| JP2008038551A (en) * | 2006-08-10 | 2008-02-21 | Kajima Corp | Joint bar of wall of reinforced concrete building |
| JP2008082126A (en) * | 2006-09-29 | 2008-04-10 | Kajima Corp | High performance cracking induction joint for earthquake-resisting wall |
| JP2010168811A (en) * | 2009-01-23 | 2010-08-05 | Kajima Corp | Joint bar of wall of reinforced concrete building |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007056521A (en) * | 2005-08-24 | 2007-03-08 | Shimizu Corp | Crack induction joint structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55180803U (en) * | 1979-06-12 | 1980-12-25 |
-
1981
- 1981-06-23 JP JP56097010A patent/JPS58598A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55180803U (en) * | 1979-06-12 | 1980-12-25 |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59128813U (en) * | 1983-02-16 | 1984-08-30 | 清水建設株式会社 | Concrete wall with crack-inducing structure |
| JPS59154298A (en) * | 1983-02-21 | 1984-09-03 | 株式会社ケ−・エフ・シ− | Method of executing concrete lining to whole section of tunnel and formwork for execution of said method |
| JPS59217900A (en) * | 1983-05-26 | 1984-12-08 | フジタ工業株式会社 | Method of placing construction of lining concrete |
| JPS608306U (en) * | 1983-06-27 | 1985-01-21 | 株式会社竹中工務店 | Crack-inducing joints in concrete buildings |
| JPS6085139A (en) * | 1983-10-13 | 1985-05-14 | フジタ工業株式会社 | Crack inducing structure in reinforced concrete structure |
| JPS60126448A (en) * | 1983-12-13 | 1985-07-05 | 株式会社大林組 | Crack inducing structure of concrete structure |
| JPS60152749A (en) * | 1984-01-17 | 1985-08-12 | 清水建設株式会社 | Outer wall crack inducing and water stopping plate |
| JPH0445620B2 (en) * | 1984-01-17 | 1992-07-27 | Shimizu Construction Co Ltd | |
| JPS61165441A (en) * | 1985-01-16 | 1986-07-26 | 鹿島建設株式会社 | Apparatus for inducing crack of concrete earthquake-proof wall |
| JPS6317208U (en) * | 1986-07-21 | 1988-02-04 | ||
| JPS63151740A (en) * | 1986-12-13 | 1988-06-24 | 清水建設株式会社 | Drain decorative joint material and execution thereof |
| JPH046828B2 (en) * | 1986-12-13 | 1992-02-07 | Shimizu Construction Co Ltd | |
| JP2008038551A (en) * | 2006-08-10 | 2008-02-21 | Kajima Corp | Joint bar of wall of reinforced concrete building |
| JP2008082126A (en) * | 2006-09-29 | 2008-04-10 | Kajima Corp | High performance cracking induction joint for earthquake-resisting wall |
| JP2010168811A (en) * | 2009-01-23 | 2010-08-05 | Kajima Corp | Joint bar of wall of reinforced concrete building |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6156393B2 (en) | 1986-12-02 |
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