CN102877551A - Crack control structure of micro-expansion concrete post-cast strip - Google Patents
Crack control structure of micro-expansion concrete post-cast strip Download PDFInfo
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- CN102877551A CN102877551A CN2012103246856A CN201210324685A CN102877551A CN 102877551 A CN102877551 A CN 102877551A CN 2012103246856 A CN2012103246856 A CN 2012103246856A CN 201210324685 A CN201210324685 A CN 201210324685A CN 102877551 A CN102877551 A CN 102877551A
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- poured band
- control structure
- late poured
- crack control
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Abstract
The invention discloses a crack control structure of a micro-expansion concrete post-cast strip, which comprises end clamping plates which are fixedly clamped on two end faces of a concrete post-cast strip, wherein an upper clamping plate is fixed on an upper surface of the concrete post-cast strip. According to the micro-expansion concrete post-cast strip crack control structure, the end clamping plates and the upper clamping plate are respectively and fixedly clamped on two end faces and the upper surface of the concrete post-cast strip, so that the two end faces and the surface layer of the cast concrete post-cast strip are constrained, further, air shrinkage of micro-expansion concrete in the concrete post-cast strip in the airing and using stages can be effectively controlled, and cracks can be effectively prevented from being generated in the concrete post-cast strip. The crack control structure of the micro-expansion concrete post-cast strip is applied to the field of building construction.
Description
Technical field
The present invention relates to a kind of building operations structure, particularly relate to the Crack Control structure after a kind of concreting.
Background technology
In building operations, in order to prevent that monolithic reinforced concrete structure is owing to temperature, the uneven issuable harmful cracks of contraction, according to design or job specfication requirement, all can stay in relevant positions such as sole plate, wall, beams and to establish the temporary construction seam, this temporary construction seam generally has certain width, structure temporarily can be divided into some parts by some temporary construction seams.Through after the some time, generally be after by the time component inside contraction is stablized, to water again and smash this place's concrete, structure is linked to be integral body.
The concrete that mixes expansion agent the expansion different than ordinary concrete can occur at the wet initial stage of supporting, but doing the stage of supporting, equally the drying shrinkage phenomenon can occur with ordinary concrete.
In the building operations now, the ater-casting build finish after, the surface is not generally done any hard and is covered, the maintenance of namely only sprinkling water, or only carrying out water storing conservation, this type of maintenance method does not have Complete Bind to slightly expanded concrete, only has bottom surface and both sides, the minority engineering is at two ends, ater-casting Constrained, but generally surface layer do not had the constraint of hard.
This type of form of construction work can cause slightly expanded concrete to build backward upper expansion, the original part in both sides there is no extruding to it, namely can not produce elastic compression, cause in follow-up maintenance stage and use procedure, because the drying shrinkage of concrete itself causes the disengaging of pullling with the original part in both sides, thereby cause the both sides, ater-casting the crack to occur, the serious situation of part drying shrinkage is arranged, concrete own also the crack can occur in the ater-casting.Like this, then so that underground water see through these cracks infiltrate indoor, the reinforcing bar in may corrosion structure when serious, thereby applicability, durability and the structural safety of impact building.
Summary of the invention
For addressing the above problem, the invention provides a kind of constructing structure that can effectively control crack, slightly expanded concrete ater-casting.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of slightly expanded concrete ater-casting Crack Control structure comprises that geometrical clamp is located at the termination clamping plate of late poured band both ends of the surface, and the upper surface of late poured band also is fixed with train wheel bridge.
Be further used as the improvement of technical solution of the present invention, the both ends of the surface inboard of late poured band is provided with the termination bolt that some ends pass the termination clamping plate, the outside of termination clamping plate is provided with the butterfly that is connected with the termination bolt thread and buckles and nut, is equipped with wooden a tree, used in making timber for boats between each butterfly button and termination clamping plate.
Be further used as the improvement of technical solution of the present invention, each termination bolt is in the equidistant arrangement of the end face of late poured band.
Be further used as the improvement of technical solution of the present invention, train wheel bridge is provided with the wooden a tree, used in making timber for boats in some tops parallel to each other and equidistant arrangement, and the both sides of each top wood a tree, used in making timber for boats are equipped with the upper bolt that is embedded in the late poured band.
Be further used as the improvement of technical solution of the present invention, all be connected with the top nut on the upper bolt, between the downside of each top wood a tree, used in making timber for boats the same side upside and each top nut, be provided with angle steel.
Be further used as the improvement of technical solution of the present invention, each termination bolt namely is embedded in the late poured band pouring position in advance before the late poured band cast.
Be further used as the improvement of technical solution of the present invention, each upper bolt namely is embedded in the late poured band pouring position in advance before the late poured band cast.
Beneficial effect of the present invention: this slightly expanded concrete ater-casting Crack Control structure has fixedly mounted respectively termination clamping plate and train wheel bridge at both ends of the surface and the upper surface of late poured band, both ends of the surface and surface layer to the late poured band of casting complete all impose restriction, thereby can effectively control the interior slightly expanded concrete of late poured band doing the drying shrinkage of supporting with operational phase, effectively prevent from producing on the late poured band crack.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is embodiment of the invention overall structure schematic diagram;
Fig. 2 is clamping plate position, embodiment of the invention termination syndeton detailed maps;
Fig. 3 is embodiment of the invention overall structure generalized section.
The specific embodiment
With reference to Fig. 1～Fig. 3, the present invention is a kind of slightly expanded concrete ater-casting Crack Control structure, comprises that geometrical clamp is located at the termination clamping plate 1 of late poured band both ends of the surface, and the upper surface of late poured band also is fixed with train wheel bridge 2.
This slightly expanded concrete ater-casting Crack Control structure has fixedly mounted respectively termination clamping plate 1 and train wheel bridge 2 at both ends of the surface and the upper surface of late poured band, both ends of the surface and surface layer to the late poured band of casting complete all impose restriction, thereby can effectively control the interior slightly expanded concrete of late poured band doing the drying shrinkage of supporting with operational phase, effectively prevent from producing on the late poured band crack.
As the preferred embodiment of the present invention, the both ends of the surface inboard of late poured band is provided with the termination bolt 3 that some ends pass termination clamping plate 1, the outside of termination clamping plate 1 is provided with the butterfly that is threaded with termination bolt 3 and buckles 31 and nut 32, and 1 on each butterfly button 31 and termination clamping plate are equipped with wooden a tree, used in making timber for boats 33.
As the preferred embodiment of the present invention, each termination bolt 3 is in the equidistant arrangement of the end face of late poured band.
As the preferred embodiment of the present invention, train wheel bridge 2 is provided with the wooden a tree, used in making timber for boats 43 in some tops parallel to each other and equidistant arrangement, and the both sides of each top wood a tree, used in making timber for boats 43 are equipped with the upper bolt 4 that is embedded in the late poured band.
As the preferred embodiment of the present invention, all be connected with top nut 41 on the upper bolt 4, between the downside of each top wood a tree, used in making timber for boats 43 the same side upside and each top nut 41, be provided with angle steel 42.
As the preferred embodiment of the present invention, each termination bolt 3 namely is embedded in the late poured band pouring position in advance before the late poured band cast.
As the preferred embodiment of the present invention, each upper bolt 4 namely is embedded in the late poured band pouring position in advance before the late poured band cast.
Each upper bolt 4 and termination bolt 3 all have been embedded in the pouring position of late poured band before the late poured band cast, in work progress, at first reach butterfly button 31 and the nut 32 that is used for fastening end head-clamp plate 1 at the pouring position both sides of late poured band installation end head-clamp plate 1, at the late poured band casting complete after 12 hours, need to be by standard to the late poured band maintenance of sprinkling water.After the watering, upper surface in late poured band is laid train wheel bridge 2, and each top of equidistant installation wood a tree, used in making timber for boats 43 successively, an angle steel 42 is respectively placed in both sides at the top wood a tree, used in making timber for boats 43 that respectively is arranged in parallel, by screwing the top nut 41 that is threaded with upper bolt 4 at each top wood a tree, used in making timber for boats 43 with angle steel 42 contact positions, can finish the construction of this control structure at last.
This control structure is in the process of carrying out the late poured band construction, steel plate for sealing water 5 has been installed between late poured band and body of wall, the plane parallel of steel plate for sealing water 5 is in the construction direction of late poured band, crosscut can strengthen the stagnant water effect of late poured band between late poured band and body of wall.
Owing to the restriction that adds that makes progress, so that slightly expanded concrete pushes to all directions simultaneously, but since each to constraint, so that concrete is caused elastic compression, As time goes on these elastic compression can produce restorative elastic elongation, these elastic elongations just in time can balance out the drying shrinkage of concrete itself, do not tear thereby do not make late poured band and both sides occur pullling, and also can not produce the crack in the both sides of late poured band.
Simultaneously, this control structure all is to use construction building circulation material commonly used, consume and lack, and enforcement is also comparatively convenient.
Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite of spirit of the present invention, the modification that these are equal to or replacement all are included in the application's claim limited range.
Claims (7)
1. slightly expanded concrete ater-casting Crack Control structure, it is characterized in that: comprise that geometrical clamp is located at the termination clamping plate (1) of late poured band both ends of the surface, the upper surface of described late poured band also is fixed with train wheel bridge (2).
2. slightly expanded concrete according to claim 1 ater-casting Crack Control structure, it is characterized in that: the both ends of the surface inboard of described late poured band is provided with the termination bolt (3) that some ends pass termination clamping plate (1), the outside of described termination clamping plate (1) is provided with the butterfly that is threaded with termination bolt (3) and buckles (31) and nut (32), is equipped with wooden a tree, used in making timber for boats (33) between described each butterfly button (31) and termination clamping plate (1).
3. slightly expanded concrete according to claim 2 ater-casting Crack Control structure, it is characterized in that: described each termination bolt (3) is in the equidistant arrangement of the end face of late poured band.
4. slightly expanded concrete according to claim 1 ater-casting Crack Control structure, it is characterized in that: described train wheel bridge (2) is provided with the wooden a tree, used in making timber for boats (43) in some tops parallel to each other and equidistant arrangement, and the both sides of described each top wood a tree, used in making timber for boats (43) are equipped with the upper bolt (4) that is embedded in the late poured band.
5. slightly expanded concrete according to claim 4 ater-casting Crack Control structure, it is characterized in that: all be connected with top nut (41) on the described upper bolt (4), between the downside of described each top wood a tree, used in making timber for boats (43) the same side upside and each top nut (41), be provided with angle steel (42).
6. slightly expanded concrete according to claim 2 ater-casting Crack Control structure, it is characterized in that: described each termination bolt (3) namely is embedded in the late poured band pouring position in advance before the late poured band cast.
7. slightly expanded concrete according to claim 1 ater-casting Crack Control structure, it is characterized in that: described each upper bolt (4) namely is embedded in the late poured band pouring position in advance before the late poured band cast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103246856A CN102877551A (en) | 2012-09-04 | 2012-09-04 | Crack control structure of micro-expansion concrete post-cast strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103246856A CN102877551A (en) | 2012-09-04 | 2012-09-04 | Crack control structure of micro-expansion concrete post-cast strip |
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| CN102877551A true CN102877551A (en) | 2013-01-16 |
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| CN2012103246856A Pending CN102877551A (en) | 2012-09-04 | 2012-09-04 | Crack control structure of micro-expansion concrete post-cast strip |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200918A (en) * | 2007-12-24 | 2008-06-18 | 中国建筑二局第三建筑公司 | Pre-seal structure of post-subsidence pouring belt and construction method thereof |
| CN201195892Y (en) * | 2008-04-03 | 2009-02-18 | 上海市第七建筑有限公司 | After-pouring strips structure |
| US20090071086A1 (en) * | 2005-03-21 | 2009-03-19 | Ytterberg Carl N | Unreinforced shrinkage compensating concrete floor slab |
| CN201495772U (en) * | 2009-03-13 | 2010-06-02 | 南通建筑工程总承包有限公司 | Post-poured band formwork supporting device |
| CN102619329A (en) * | 2011-01-26 | 2012-08-01 | 甘肃省第八建筑工程公司 | Expansion restraint construction method for post-pouring belt |
-
2012
- 2012-09-04 CN CN2012103246856A patent/CN102877551A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090071086A1 (en) * | 2005-03-21 | 2009-03-19 | Ytterberg Carl N | Unreinforced shrinkage compensating concrete floor slab |
| CN101200918A (en) * | 2007-12-24 | 2008-06-18 | 中国建筑二局第三建筑公司 | Pre-seal structure of post-subsidence pouring belt and construction method thereof |
| CN201195892Y (en) * | 2008-04-03 | 2009-02-18 | 上海市第七建筑有限公司 | After-pouring strips structure |
| CN201495772U (en) * | 2009-03-13 | 2010-06-02 | 南通建筑工程总承包有限公司 | Post-poured band formwork supporting device |
| CN102619329A (en) * | 2011-01-26 | 2012-08-01 | 甘肃省第八建筑工程公司 | Expansion restraint construction method for post-pouring belt |
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Application publication date: 20130116 |