CN2921135Y - Special concrete crack induction strip for concrete construction joint - Google Patents
Special concrete crack induction strip for concrete construction joint Download PDFInfo
- Publication number
- CN2921135Y CN2921135Y CN 200620040874 CN200620040874U CN2921135Y CN 2921135 Y CN2921135 Y CN 2921135Y CN 200620040874 CN200620040874 CN 200620040874 CN 200620040874 U CN200620040874 U CN 200620040874U CN 2921135 Y CN2921135 Y CN 2921135Y
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- concrete
- induced
- grouting pipe
- construction joint
- crack
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Abstract
The utility model relates to a special concrete cracks induced belt for concrete construction joint, which comprises an induced belt body, a damping rack on the body, a grouting pipe on the body and a or a plurality of foam rubbers on outer wall of the grouting pipe. Small holes pouring into the concrete pulp are arranged on the wall of the grouting pipe. In pouring concrete, the foam rubber provided is covered to all the holes in order to prevent from slurry mortar holes to be plugged. Grouting, the foam rubber is compressed by the grouting liquid. In this case, the grouting liquid can easily be injected into the crack between the induced belt and the concrete. The foam rubber mainly plays role in one-way returning valve. The utility model can greatly improve the quality of pouring concrete and shorten the construction period and save the cost of the investment project, and is able to generate significant market results and has tremendous market potential.
Description
Technical field
The utility model relates to concrete engineering construction seam building material technical field.
Background technology
At present, all concrete construction engineerings, as subway, underground station, basement and garage, dam, reservoir, harbour, power station, highway/railway tunnel etc., in work progress, in order to guarantee the quality of structural concrete, prevent that concrete from producing crack (especially dried shrinkage crack and thermal cracking etc.), traditional solution is: except taking rational concrete raw material, optimizing the methods such as concrete mix and grating, when fluid concrete, take to control the length or the volume size of each fluid concrete, can not be long or excessive.According to traditional experience, must concrete be divided into several storehouses or piece according to certain length (being generally 6-15 rice does not wait), to reduce the crack that produces because of the restraint forces around the concrete.So, can not take the continuous concrete placing method, must carry out branch storehouse or piece fluid concrete, divide storehouse or piece to adopt materials such as wooden or steel form usually.Simultaneously, reinforcing bar in each branch storehouse or the piece also needs to block, and does like this, can produce reinforcing bar and template loss, the workload and the time of reinforcing bar and template increase to be installed, thereby the cost that causes long and engineering of whole construction of Concrete Engineering cycle is also correspondingly than higher.
The seam that forms between each concrete storehouse or the piece is a concrete construction joint, and following specially treated need be carried out in the concrete construction joint position:
1, closely knit in order to guarantee the bond between fresh and hardened concretes of constuction joint position, before the as placed concrete cast, on the surface course of the concrete construction joint of having poured into a mould, must cut a hole hair handles, expend time in and manpower, when cutting a hole hair simultaneously, easily waterproofing materials (as waterstop, splash guard etc.) is destroyed.
2, the constuction joint position is the weak link of waterproof, must design waterproofing materials and guarantee waterproof quality.At present, the scheme of solution concrete construction joint position antiseepage problem mostly is to adopt at traditional forms such as the pre-buried waterstop in constuction joint position (as rubber fastening band, steel limit waterstop etc.), hydro-expansive rubber bar or ejection for water plugging pipes.But, in the actual field installation process, the waterproof quality at this position is often owing to reasons such as waterproofing materials quality, construction environment are abominable, construction quality and finished product destructions, be difficult to reach the waterproof quality requirement, leakage problem often takes place, have influence on the operation and the application life of concrete structure, and the difficulty and the expense of repairing be quite big, the waterproof quality instability after the repairing.
Summary of the invention
But the utility model purpose is to provide a kind of concrete structure construction seam to induce band with slip casting formula distress in concrete, and it can solve and control crack (dried shrinkage crack etc.) that the existing concrete structure occurs and constuction joint this a great problem that seeps water effectively.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of concrete construction joint concrete special crack-induced band, comprise and induce band body, be located at damping tooth bar on the body, be located at the Grouting Pipe of inducing on the band body, one or more bipeltate bar of being located at the Grouting Pipe outer wall that described Grouting Pipe tube wall is provided with the pulp aperture.When concreting, stopped up by mortar in order to prevent the pulp aperture, so the bipeltate bar is set the pulp aperture is all covered.During slip casting, the bipeltate bar is compressed by slurries, and slurries can inject the slit of inducing between band and the concrete glibly.The bipeltate bar mainly plays the effect of unidirectional non retern valve.
As a kind of improvement of the present utility model, also comprise and be located at the one or more damping tooth bar of inducing on the band body.Its quantity is set according to actual needs.
As another improvement of the present utility model, described Grouting Pipe is located at and is induced the band body middle part.
As a kind of optimal way of the present utility model, in the described damping tooth bar one is located at described Grouting Pipe place and induces on the same position of band body.
As another optimal way of the present utility model, the quantity of described bipeltate bar is 1～8.
One improve again as of the present utility model, described Grouting Pipe with induce band body to be structure as a whole.Be that Grouting Pipe is a same material with inducing band body, time processing moulding during manufacturing.
One improve again as of the present utility model, described Grouting Pipe with induce band body to be structure as a whole.Described damping tooth bar with induce band body to be structure as a whole.Be that the damping tooth bar is a same material with inducing band body, time processing moulding during manufacturing.
As an optimal way more of the present utility model, described damping tooth bar is perpendicular to inducing band body.
As an optimal way more of the present utility model, described pulp aperture is divided into 2～8 rows.
As an optimal way more of the present utility model, described pulp aperture is divided into four rows, and every row 90 degree at interval arranges.
The utility model can greatly improve the cost of investment of concrete engineering quality, reduction of erection time and saving engineering, can produce significant market efficiency, has huge market development prospect, and concrete advantage is described below:
1, a large amount of concrete durations of saving, need not divide the storehouse or jump the storehouse fluid concrete, fluid concrete continuously, the size of institute's fluid concrete is unrestricted.
2, reduced reinforcing bar waste in the concrete, reinforcing bar is inducing band (constuction joint) to locate need not block and overlap, and has saved manpower and time that reinforcing bar is installed simultaneously.
3, can work as the plug template and use, replace traditional plug template; The operation of old concrete surface, cancellation constuction joint position cutter hair processing has been saved the manpower and the time of installing and removing plug template and the processing of cutter hair.
4, can improve the quality of concrete structure effectively, be about to concrete crack and concentrate and to be induced on the position (constuction joint) of crack-induced band.
5, after distress in concrete is induced band slip casting, can guarantee the concrete construction joint waterproof quality effectively and improve concrete construction joint position stability of structure.
6, under the situation of using superfine cement slurries or acrylates slurries, can repeatedly repeat slip casting as required.
7, it can replace traditional constuction joint waterproofing materials, promptly replaces waterstop, hydro-expansive rubber bar and Grouting Pipe etc.Comprehensive cost is minimum, most economical.
Description of drawings
Fig. 1 implements structural representation for the utility model;
Fig. 2, Fig. 3 implement scheme of installation for the utility model;
Fig. 4 implements to widen scheme of installation for the utility model;
The specific embodiment
As shown in Figure 1, 2, 3, a kind of concrete construction joint concrete special crack-induced band, comprise and induce band body 1, be located at the Grouting Pipe 2 of inducing band body 1 middle part, be vertical at five damping tooth bars 4 of inducing on the band body 1, four bipeltate bars 3 being located at Grouting Pipe 2 outer walls that described Grouting Pipe 2 tube walls are provided with the four rows pulp aperture 5 arranged of 90 degree at interval.
Wherein, in described five damping tooth bars 4 one is located at described Grouting Pipe 2 places and induces on the same position of band body 1.All the other four amortisseur bars 4 are located at Grouting Pipe 2 both sides respectively in twos.
Wherein, described Grouting Pipe 2, damping tooth bar 4 with induce band body 1 to be structure as a whole.Grouting Pipe 2, damping tooth bar 4 is same material, time processing moulding during manufacturing with inducing band body 1.
Also can lead to joint 16, slip casting threeway connector 17, grouting pipe 18 during construction and add wide plate 19 etc. and be used in combination with accessory-slip casting two.
Fig. 2,3,4 induces for the present embodiment distress in concrete and is with 10 construction schematic diagrames.Usually the concrete of construction comprises concrete side wall 11, concrete floor 13 and is embedded in wherein reinforcing bar 14.Among two concrete floors 13, have constuction joint 12.
The present embodiment distress in concrete is induced and is with 10 to be located in the described constuction joint 12.According to the length and the actual needs of practice of construction seam, set the length of this crack-induced band 10, for example every length is 3 meters.In addition can be as required, adopt two logical slip casting connector 16 or threeway slip casting connectors 17, the Grouting Pipe 2 of adjacent two crack-induced bands is connected.
During installation, crack-induced band 10 is installed on the position between the two-layer reinforcing bar 14 at position of the concrete construction joint 12 of precoating, with two-layer steel bar layer 14 vertical placements (promptly identical with constuction joint 12 directions), different with traditional waterstop mounting method, traditional waterstop and steel bar layer are parastates.Then, with stirrup crack-induced band 10 is fixed on the two-layer reinforcing bar securely, the width of crack-induced band preferably guarantees at more than 75% of concrete component thickness.
Under the normal condition, the crack-induced band should be expanded to outer reinforcement 14 or is extended to bottom layer of the reinforcing steel 14 from top layer reinforcing bar 14 from internal layer reinforcing bar 14.If under the very thick situation of concrete component, when crack-induced band 10 can not cover between the two-layer reinforcing bar 14 apart from the time, as shown in Figure 4, can increase width to it and handle according to the actual (real) thickness requirement.Adding wide plate 19 can adopt the material the same with material with the thickness of crack-induced band to make.When widening, adopt tubular rivet or bolt will add wide plate 19 and be connected, can widen from crack-induced band one side with crack-induced band 10.
During fluid concrete, attention should be from the both sides of crack-induced band 10 blanking and the island that shakes carefully equably, be with 10 distortion, be shifted or be damaged in case the crack arrest seam is induced.Simultaneously; attention is fixed with grouting pipe 18; be drawn out to the inboard of concrete structure; promptly be drawn out to be exposed on the airborne concrete surface and (will pass inner side template during the wall position); and protect, not stopping up and damage, an end is as injected hole; the other end uses in order to slip casting as steam vent.
After concrete is fixed, the shrinkage crack that concrete structure produced can concentrate crack-induced band 10 places that guide to constuction joint 12 (promptly induce be with 10 and concrete between have the slit to produce), when concrete intensity reaches 28 days when (or by designing requirement), can carry out slip casting to the grouting pipe on the crack-induced band 10 18, in it, inject chemical grout or cement grout, and by Grouting Pipe 2, pulp aperture 5 and bipeltate bar 3, slurries can evenly inject all slits between crack-induced band 10 both sides and the concrete glibly, when with slurries from crack-induced band 10 positions (near concrete structure inboard) when overflowing fully, the slit that shows constuction joint is filled up, stops slip casting this moment.If need slip casting once more later on, at this moment, should be immediately residual slurries in the Grouting Pipe 2 of grouting pipe 18, crack-induced band 10 and the pulp aperture 5 be cleaned up, and grouting pipe 18 are protected, in order to later on once more slip casting use.
The utility model is applicable to that all concrete structure construction seams use.
In the present embodiment, distress in concrete is induced band body and adds wide plate that can to adopt senior plastics be main material (as PVC polyvinyl chloride and HDPE high density polyethylene (HDPE)), makes it have favorable durability, resistance to ag(e)ing and weldability.
The utility model is not limited to the above-mentioned specific embodiment, as long as include following technical characterictic, promptly comprise and induce band body, be located at damping tooth bar, Grouting Pipe of inducing on the band body and the bubble rubber strip of being located at the Grouting Pipe outer wall, and described Grouting Pipe tube wall is provided with the pulp aperture.No matter induce physical dimension, shape, quantity, material and colors such as band body, damping tooth bar, Grouting Pipe, bipeltate bar, slurry outlet how to change, all drop within the protection domain of the present utility model.
Claims (10)
1, a kind of concrete construction joint concrete special crack-induced band, it is characterized in that: comprise and induce band body, be located at the Grouting Pipe of inducing on the band body, one or more bipeltate bar of being located at the Grouting Pipe outer wall that described Grouting Pipe tube wall is provided with the pulp aperture.
2, concrete construction joint concrete special crack-induced band according to claim 1 is characterized in that: also comprise and be located at two or many damping tooth bars of inducing on the band body.
3, concrete construction joint concrete special crack-induced band according to claim 1 is characterized in that: described Grouting Pipe is located at and is induced the band body middle part.
4, concrete construction joint concrete special crack-induced band according to claim 3 is characterized in that: in the described damping tooth bar one, be located at described Grouting Pipe place and induce on the same position of band body.
5, concrete construction joint concrete special crack-induced band according to claim 1, it is characterized in that: the quantity of described bipeltate bar is 2～8, material therefor can be bipeltate, sponge kind or other foaming nonmetals.
6, according to claim 1 or 3 described concrete construction joint concrete special crack-induced bands, it is characterized in that: described Grouting Pipe with induce band body to be structure as a whole, material therefor can be nonmetal plastics or metal species.
7, concrete construction joint concrete special crack-induced band according to claim 2 is characterized in that: described damping tooth bar with induce band body to be structure as a whole, material therefor can be nonmetal plastics or metal species.
8, concrete construction joint concrete special crack-induced band according to claim 1 and 2, it is characterized in that: described damping tooth bar is perpendicular to inducing band body.
9, according to claim 2 or 3 described concrete construction joint concrete special crack-induced bands, it is characterized in that: described pulp aperture is divided into four rows, and every row 90 degree at interval arranges.
10, according to claim 1 or 3 described concrete construction joint concrete special crack-induced bands, it is characterized in that: described pulp aperture is divided into 2～8 rows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620040874 CN2921135Y (en) | 2006-04-07 | 2006-04-07 | Special concrete crack induction strip for concrete construction joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620040874 CN2921135Y (en) | 2006-04-07 | 2006-04-07 | Special concrete crack induction strip for concrete construction joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2921135Y true CN2921135Y (en) | 2007-07-11 |
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| CN 200620040874 Expired - Fee Related CN2921135Y (en) | 2006-04-07 | 2006-04-07 | Special concrete crack induction strip for concrete construction joint |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101603897B (en) * | 2009-05-27 | 2011-03-23 | 水利部交通部电力工业部南京水利科学研究院 | Adjustable multiple stress induced cracking device for concrete |
| CN102296637A (en) * | 2011-06-13 | 2011-12-28 | 华南理工大学 | Seepage-proofing joint device of diaphragm wall |
| CN103276651A (en) * | 2013-05-06 | 2013-09-04 | 清华大学 | No-cutting-seam cement concrete pavement structure and construction method thereof |
| CN103741571A (en) * | 2014-01-22 | 2014-04-23 | 王兆庆 | Pre-implantation device of concrete expansion joint panel |
| CN104032841A (en) * | 2014-07-02 | 2014-09-10 | 中冶天工集团有限公司 | Method for treating horizontal construction joint of concrete wall |
| CN112211060A (en) * | 2020-10-16 | 2021-01-12 | 长沙理工大学 | Concrete pavement crack induction method and concrete pavement structure |
| CN114622740A (en) * | 2022-04-06 | 2022-06-14 | 绍兴文理学院 | Method for self-making concrete cracks and partial grouting |
-
2006
- 2006-04-07 CN CN 200620040874 patent/CN2921135Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101603897B (en) * | 2009-05-27 | 2011-03-23 | 水利部交通部电力工业部南京水利科学研究院 | Adjustable multiple stress induced cracking device for concrete |
| CN102296637A (en) * | 2011-06-13 | 2011-12-28 | 华南理工大学 | Seepage-proofing joint device of diaphragm wall |
| CN103276651A (en) * | 2013-05-06 | 2013-09-04 | 清华大学 | No-cutting-seam cement concrete pavement structure and construction method thereof |
| CN103276651B (en) * | 2013-05-06 | 2015-04-15 | 清华大学 | No-cutting-seam cement concrete pavement structure and construction method thereof |
| CN103741571A (en) * | 2014-01-22 | 2014-04-23 | 王兆庆 | Pre-implantation device of concrete expansion joint panel |
| CN103741571B (en) * | 2014-01-22 | 2016-02-17 | 王兆庆 | The implanted device in advance of concrete extension joint sheet material |
| CN104032841A (en) * | 2014-07-02 | 2014-09-10 | 中冶天工集团有限公司 | Method for treating horizontal construction joint of concrete wall |
| CN112211060A (en) * | 2020-10-16 | 2021-01-12 | 长沙理工大学 | Concrete pavement crack induction method and concrete pavement structure |
| CN114622740A (en) * | 2022-04-06 | 2022-06-14 | 绍兴文理学院 | Method for self-making concrete cracks and partial grouting |
| CN114622740B (en) * | 2022-04-06 | 2023-12-08 | 绍兴文理学院 | Homemade concrete crack and partial grouting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070711 Termination date: 20120407 |