CN206174305U - Control mechanism of cast -in -place floor negative reinforcement protective layer thickness - Google Patents
Control mechanism of cast -in -place floor negative reinforcement protective layer thickness Download PDFInfo
- Publication number
- CN206174305U CN206174305U CN201621237593.4U CN201621237593U CN206174305U CN 206174305 U CN206174305 U CN 206174305U CN 201621237593 U CN201621237593 U CN 201621237593U CN 206174305 U CN206174305 U CN 206174305U
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- China
- Prior art keywords
- negative reinforcement
- protective layer
- cast
- reinforcement
- layer thickness
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- Expired - Fee Related
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Abstract
The utility model discloses a control mechanism of cast -in -place floor negative reinforcement protective layer thickness, including the many piece main brace rods of perpendicular to hogging moment steel bar arrangement between assembling reinforcement owner muscle and negative reinforcement, at the negative reinforcement top perpendicular to that is used for building the protective layer the brace rod is laid many times along negative reinforcement length direction in proper order to the negative reinforcement, be provided with many on the inferior brace rod and lay the PVC wire pipe that the direction is the same with the negative reinforcement, the external diameter of PVC wire pipe with treat that concreting protective layer thickness is the same, the elevation and the floor finished surface elevation of PVC wire nose portion keep the unanimity, the PVC wire pipe is fixed with negative reinforcement and time brace rod through the ligature iron wire. This mechanism not only can guarantee the thickness of a concrete protection layer of negative reinforcement, elevation construction convenience that in addition can the cast -in -place floor of effectual control, and the mass effect is obvious, has better popularization and application and is worth.
Description
Technical field
The utility model is related to structure of reinforced concrete technical field in architectural engineering, more particularly to a kind of control is now
Pour the mechanism of floor negative reinforcement protective layer thickness.
Background technology
In industry with civil buildings construction, whether accurate the position of steel bar stress is in concrete structure, plate hogging moment steel
Whether tendon protective layer thickness meets the requirements, and directly affects structural-load-carrying capacity and durability.Thickness of concrete cover is not reached
Design standard and construction quality requirement, the harm that may cause mainly have：（1）The design bearing capacity of structure is reduced, knot is reduced
The safety stock of structure；（2）Cause the premature corrosion of reinforcing bar, cause the reduction of structural strength, rigidity and ductility；（3）Reduce steel
The glutinous viscous force and the fire endurance of concrete of muscle and concrete.Because the construction of concrete cover belongs to concealed work, typically
In the case of reinforcing bar off normal or protective layer thickness deviation after concreting be difficult be found, cannot also be mended afterwards
Rescue.In fact, the control of thickness of concrete cover is always the weak link in Construction Quality management, this is caused to show
The main cause of shape has that the quality of construction team is relatively low, construction management level is not high, it is supervisor lack a sense of responsibility, cloth muscle
It is unreasonable etc., take scientific and reasonable technical measures also critically important in addition.If the thickness of concrete cover of negative reinforcement
Not enough, can not only make cast-in-place walls plate surface occur crack, also influenceing the stress of cast-in-situ floor, have a strong impact on the safety of structure
Performance, therefore the thickness of concrete cover of cast-in-situ floor negative reinforcement carries out quality control as emphasis.Generally, cast-in-place building
When plate is constructed, the thickness of concrete cover of negative reinforcement is ensured using concrete pad and split heads, while in hogging moment
Packway is laid above reinforcing bar to prevent from trampling deformation.But this construction method is unable to precise control hogging moment in concreting
The protective layer thickness of reinforcing bar, can produce larger error.
The content of the invention
In view of the shortcomings of the prior art, the technical problems to be solved by the invention are to provide a kind of simple structure, apply
Work is convenient, not only may insure the thickness of concrete cover of negative reinforcement, and can effectively control cast-in-situ floor
The mechanism of the control cast-in-situ floor negative reinforcement protective layer thickness of absolute altitude.
In order to solve the above technical problems, technical solution adopted in the utility model is：One kind control cast-in-situ floor is born curved
The mechanism of square thickness of protection tier, it is characterised in that：Including being arranged on assembling reinforcement cage bar and bearing perpendicular to negative reinforcement
Many main brace rods between moment at support, in the negative reinforcement upper vertical for pouring protective layer in the hogging moment steel
Muscle lays many brace rods successively along negative reinforcement length direction, and many are provided with described brace rod with hogging moment steel
Muscle lays direction identical PVC spools, and the external diameter of PVC spools is identical with thickness of concrete cover to be poured, PVC spools top
Absolute altitude be consistent with cast-in-situ floor finished surface absolute altitude, the PVC spools are by tie wire and negative reinforcement and secondary branch
Support muscle is fixed.
The mechanism of above-mentioned control cast-in-situ floor negative reinforcement protective layer thickness, the length of the PVC spools is curved with negative
The laying length of square reinforcing bar is identical.
The mechanism of above-mentioned control cast-in-situ floor negative reinforcement protective layer thickness, the tie wire along PVC spools and
The uniform colligation of negative reinforcement setting direction is multiple.
The advantage of mechanism of the utility model control cast-in-situ floor negative reinforcement protective layer thickness is：Mechanism not only may be used
To ensure the thickness of concrete cover of negative reinforcement, and the absolute altitude easy construction of cast-in-situ floor can be effectively controlled,
Mass effect is obvious, with preferable application value.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further details to the utility model；
As shown in figure 1, a kind of mechanism of control cast-in-situ floor negative reinforcement protective layer thickness, including perpendicular to hogging moment
Reinforcing bar 1 is arranged on many main brace rods 3 between assembling reinforcement cage bar 2 and negative reinforcement 1, for pouring protective layer 4
Length direction of the upper vertical of negative reinforcement 1 in the negative reinforcement 1 and along negative reinforcement 1 lays many branch successively
Support muscle 5, is provided with the laying direction identical PVC spool 6 of many and negative reinforcement 1, the PVC on described brace rod 5
The length of spool 6 is identical with the laying length of negative reinforcement 1.
The external diameter of PVC spools 6 is identical with the thickness of the protective layer 4 for treating casting concrete, the absolute altitude at the top of PVC spools 6
It is consistent with cast-in-situ floor finished surface absolute altitude 7, the PVC spools 6 are by tie wire 8 and negative reinforcement 1 and secondary support
Muscle 5 is fixed.For ensure colligation firmly, the tie wire 8 along PVC spools 6 and negative reinforcement 1 the uniform colligation of setting direction
It is multiple.The resilient PVC spools 6 of the tool of structure of the present utility model and use can effectively prevent the hogging moment caused by trampling
The problem of the deformation of reinforcing bar 1.
Work progress is：
During cast-in-situ floor 1 colligation of negative reinforcement, the positions such as the span centre of deformation are easily trampled in Bars In Poured Concrete Slab reinforcing bar, from one
The PVC spools 6 of the consistency of thickness of section caliber and concrete cover 4, usually 15mm or 20mm.Consolidated with tie wire 8
The top of negative reinforcement 1 is scheduled on, in concreting process, is put down and cast-in-situ floor finished surface absolute altitude on control PVC spools 6
7 are consistent.After construction end concrete reaches proof strength, PVC spools 6 are rejected, it is with mortar that cast-in-situ floor is floating.
Certainly, described above is not that, to limitation of the present utility model, the utility model is also not limited to the example above, this
The those of ordinary skill of technical field, in essential scope of the present utility model, change, remodeling, addition or the replacement made, all
Protection domain of the present utility model should be belonged to.
Claims (3)
1. it is a kind of control cast-in-situ floor negative reinforcement protective layer thickness mechanism, it is characterised in that：Including perpendicular to hogging moment
Many piece main brace rods of the steel-bar arrangement between assembling reinforcement cage bar and negative reinforcement, in the hogging moment for pouring protective layer
Reinforcing bar upper vertical lays many brace rods, described branch successively in the negative reinforcement along negative reinforcement length direction
Support muscle on be provided with many with negative reinforcement lay direction identical PVC spools, the external diameter of PVC spools with treat casting concrete
Protective layer thickness is identical, and the absolute altitude at the top of PVC spools is consistent with cast-in-situ floor finished surface absolute altitude, and the PVC spools pass through
Tie wire is fixed with negative reinforcement and secondary brace rod.
2. it is according to claim 1 control cast-in-situ floor negative reinforcement protective layer thickness mechanism, it is characterized in that：It is described
The length of PVC spools is identical with the laying length of negative reinforcement.
3. it is according to claim 2 control cast-in-situ floor negative reinforcement protective layer thickness mechanism, it is characterized in that：It is described
Tie wire is multiple along PVC spools and the uniform colligation of negative reinforcement setting direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621237593.4U CN206174305U (en) | 2016-11-18 | 2016-11-18 | Control mechanism of cast -in -place floor negative reinforcement protective layer thickness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621237593.4U CN206174305U (en) | 2016-11-18 | 2016-11-18 | Control mechanism of cast -in -place floor negative reinforcement protective layer thickness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206174305U true CN206174305U (en) | 2017-05-17 |
Family
ID=58687070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621237593.4U Expired - Fee Related CN206174305U (en) | 2016-11-18 | 2016-11-18 | Control mechanism of cast -in -place floor negative reinforcement protective layer thickness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206174305U (en) |
-
2016
- 2016-11-18 CN CN201621237593.4U patent/CN206174305U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170517 Termination date: 20171118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |