JPH05239868A - Crack inducing structure - Google Patents
Crack inducing structureInfo
- Publication number
- JPH05239868A JPH05239868A JP4132392A JP4132392A JPH05239868A JP H05239868 A JPH05239868 A JP H05239868A JP 4132392 A JP4132392 A JP 4132392A JP 4132392 A JP4132392 A JP 4132392A JP H05239868 A JPH05239868 A JP H05239868A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- boards
- plates
- crack
- predetermined interval
- 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
- Building Environments (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は鉄筋コンクリート構造
物の誘発目地すなわちひび割れ誘導構造に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for inducing joints or cracks in a reinforced concrete structure.
【０００２】[0002]
【従来技術とこの発明が解決しようとする課題】鉄筋コ
ンクリート構造物はコンクリートの乾燥収縮や温度条件
などによってひび割れを生ずることがある。このためひ
び割れ発生の恐れの高い箇所ではひび割れの発生を放置
する代りに、意図的な断面欠損が必要で、そのために目
地棒を型枠内に設けたり、それでも不十分な場合には断
面欠損用の板、パイプなどを挿入したりしていた。2. Description of the Related Art Reinforced concrete structures may crack due to drying shrinkage of concrete or temperature conditions. For this reason, in places where there is a high risk of cracking, instead of leaving the cracking to occur, intentional cross-section loss is required. I used to insert plates and pipes.
【０００３】ところでひび割れの生じた鉄筋コンクリー
ト部材の両表面間に圧力差があると水、空気等の流体が
流通し、漏水事故となり、また鉄筋を錆させる。そこで
漏水事故を防ぎ、鉄筋の発錆を防止するため目地部にシ
ールなどを貼着している。By the way, if there is a pressure difference between the two surfaces of the cracked reinforced concrete member, a fluid such as water or air flows, causing a water leakage accident and rusting the reinforcing bar. Therefore, in order to prevent water leakage accidents and to prevent rusting of reinforcing bars, a seal is attached to the joints.
【０００４】この発明は前記問題点を解消すべく創案し
た構造である。The present invention is a structure devised to solve the above problems.
【０００５】[0005]
【課題を解決するための手段】この発明のひび割れ誘導
構造は２枚の板を所定間隔に離して並べ、かつ板の面内
方向にずらした状態としてコンクリート中に埋設してあ
る。In the crack guiding structure of the present invention, two plates are arranged side by side at a predetermined interval and are embedded in concrete in a state of being displaced in the in-plane direction of the plates.
【０００６】[0006]
【実施例】ひび割れ誘導器Ａとしては２枚の金属板，石
綿セメント板あるいは合成樹脂板からなる板１，１を所
定間隔例えば１〜１０cm離して並行に並べ、かつ板１，
１の面内方向にずらした状態にしてあり、２枚の板１，
１は板の面外方向に挿通した棒状の連結体２によって所
定の間隔を保持して連結してある。また板１，１の周辺
の適宜位置には取付け用の透孔３が形成してある。EXAMPLE As the crack inducer A, two metal plates, asbestos cement plates or synthetic resin plates 1, 1 are arranged in parallel at a predetermined interval, for example 1 to 10 cm, and the plate 1,
The two plates 1 and 2 are shifted in the in-plane direction.
Reference numeral 1 is connected by a rod-shaped connecting body 2 which is inserted in the out-of-plane direction of the plate while maintaining a predetermined interval. Further, through holes 3 for attachment are formed at appropriate positions around the plates 1 and 1.
【０００７】なお前記連結体２の両端部にはストッパー
として小鍔部４を設け、また中間部には流体の短絡を防
止するため算盤玉状の阻止板５を設けておくことができ
る。A small flange portion 4 may be provided as a stopper at both ends of the connecting body 2, and an abacus ball-shaped blocking plate 5 may be provided at an intermediate portion to prevent a fluid short circuit.
【０００８】以上の誘導器Ａの配置に際しては型枠Ｂ間
に配筋された鉄筋６と前記透孔３に挿通した結束線を利
用して取付ける。次いで型枠Ｂ間にコンクリートＣを打
設することによってコンクリートＣ中に誘導器Ａを埋設
する。なお符号７は必要により配置する目地棒である。When arranging the inductor A as described above, the reinforcing bars 6 arranged between the molds B and the binding wires inserted through the through holes 3 are attached. Next, the inductor A is embedded in the concrete C by placing concrete C between the formwork B. Reference numeral 7 is a joint bar which is arranged if necessary.
【０００９】[0009]
【発明の効果】この発明は以上の構成からなり、２枚の
板が所定間隔に離し、かつずらした状態にコンクリート
中に埋設してあるので、発生するひび割れは貫通する一
本のひび割れではなく、二本のひび割れが少しずれた位
置にある。したがって貫通してないひび割れのため水や
空気が流通することを防止でき、このため漏水現象もな
くなり、鉄筋の錆も防ぐことができる。According to the present invention, which has the above-described structure, the two plates are embedded in the concrete in a state that they are separated by a predetermined distance and are displaced from each other. , The two cracks are slightly offset. Therefore, it is possible to prevent water and air from flowing due to the cracks that do not penetrate, so that the water leakage phenomenon is eliminated and the rust of the reinforcing bar can be prevented.
【図１】この発明の構造の横断面図である。1 is a cross-sectional view of the structure of the present invention.
【図２】この発明の要部の縦断面図である。FIG. 2 is a vertical cross-sectional view of a main part of the present invention.
【図３】連結体の使用状態の平面図である。FIG. 3 is a plan view of a connected body in a used state.
Ａ…誘導器、Ｂ…型枠、Ｃ…コンクリート １…板、２…連結体、３…透孔、４…小鍔部、５…阻止
板、６…鉄筋A ... Inductor, B ... Formwork, C ... Concrete 1 ... Plate, 2 ... Connection body, 3 ... Through hole, 4 ... Small flange part, 5 ... Blocking plate, 6 ... Reinforcing bar
Claims (2)
板の面内方向にずらした状態としてコンクリート中に埋
設してあることを特徴とするひび割れ誘導構造。1. A crack inducing structure, characterized in that two plates are arranged at a predetermined interval and are embedded in concrete in a state of being shifted in an in-plane direction of the plates.
体で間隔を保持して連結してある請求項１記載のひび割
れ誘導構造。2. The crack guiding structure according to claim 1, wherein the two plates are connected by a connecting body inserted in an out-of-plane direction of the plates with a space therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4041323A JP2541066B2 (en) | 1992-02-27 | 1992-02-27 | Crack induction structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4041323A JP2541066B2 (en) | 1992-02-27 | 1992-02-27 | Crack induction structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05239868A true JPH05239868A (en) | 1993-09-17 |
| JP2541066B2 JP2541066B2 (en) | 1996-10-09 |
Family
ID=12605317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4041323A Expired - Lifetime JP2541066B2 (en) | 1992-02-27 | 1992-02-27 | Crack induction structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2541066B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011208356A (en) * | 2010-03-27 | 2011-10-20 | Ohbayashi Corp | Cross secctional defective member for inducing crack, and structure for installing the same |
| US10432319B2 (en) | 2015-10-29 | 2019-10-01 | Hewlett Packard Enterprise Development Lp | Receivers with automatic gain control |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102484286B1 (en) | 2021-08-20 | 2023-01-04 | 단국대학교 산학협력단 | Cracked concrete specimen and method using the same |
-
1992
- 1992-02-27 JP JP4041323A patent/JP2541066B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011208356A (en) * | 2010-03-27 | 2011-10-20 | Ohbayashi Corp | Cross secctional defective member for inducing crack, and structure for installing the same |
| US10432319B2 (en) | 2015-10-29 | 2019-10-01 | Hewlett Packard Enterprise Development Lp | Receivers with automatic gain control |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2541066B2 (en) | 1996-10-09 |
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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: 19960528 |