CN208965551U - A kind of prestressed in-situ depositing concrete uplift pile - Google Patents
A kind of prestressed in-situ depositing concrete uplift pile Download PDFInfo
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- CN208965551U CN208965551U CN201821287243.8U CN201821287243U CN208965551U CN 208965551 U CN208965551 U CN 208965551U CN 201821287243 U CN201821287243 U CN 201821287243U CN 208965551 U CN208965551 U CN 208965551U
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- anchor slab
- reinforcing steel
- prestressed
- presstressed reinforcing
- stake
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Abstract
The utility model discloses a kind of prestressed in-situ depositing concrete uplift piles, including pile body, lateral anchor slab is embedded in the pile body, the anchor slab upper end is provided with presstressed reinforcing steel, the anchor slab upper end is additionally provided with partial screw threads stirrup, and the presstressed reinforcing steel is in partial screw threads stirrup.The anchor slab is annular anchor slab, and the centre bore of the annular anchor slab is pouring hole.The presstressed reinforcing steel is uniformly arranged on anchor slab.Anchor slab bearing rod has been uniformly arranged at the anchor slab outer wall.The utility model pre-buried anchor slab in pile body, presstressed reinforcing steel is set on anchor slab, then casting concrete, prestressing force is applied to stake using post stretching, make to form pre-add axial compressive force in stake, anchor slab, stake longitudinal reinforcement are connected by anchor slab bearing rod, bellows or casing and partial screw threads stirrup are set outside presstressed reinforcing steel.The utility model effectively improves the cracking resistance of stake, extraction-resistant behavior, reduces the usage amount of regular reinforcement.
Description
Technical field
The utility model belongs to civil construction project technical field, and in particular to a kind of prestressed in-situ depositing concrete resistance to plucking
Stake.
Background technique
Cast-in-place concrete pile is pile foundation form more commonly used at present, is primarily subjected to vertical load, and certain specific
In the case where, there may be pulls out force, such as eccentric force, anti-floating operating condition etc. for pile foundation.
It is well known that cast-in-place concrete pile Compressive Performance is preferable, but examining tensile behavior is poor, is easy to produce under a stretching force
Crack.Under the outdoor environment of underground, excessive crack can make the steel bar corrosion in stake, and pile body is made to be damaged, and increase basis knot
The risk of structure.
Summary of the invention
The utility model proposes in order to solve the problems existing in the prior art, mixed the purpose is to provide a kind of prestressed in-situ depositing
Solidifying soil uplift pile.
The technical solution of the utility model is: a kind of prestressed in-situ depositing concrete uplift pile, including pile body, in the pile body
It is embedded with lateral anchor slab, the anchor slab upper end is provided with presstressed reinforcing steel, and the anchor slab upper end is additionally provided with partial screw threads stirrup,
The presstressed reinforcing steel is in partial screw threads stirrup.
The anchor slab is annular anchor slab, and the centre bore of the annular anchor slab is pouring hole.
The presstressed reinforcing steel is uniformly arranged on anchor slab.
Anchor slab bearing rod has been uniformly arranged at the anchor slab outer wall.
The anchor slab bearing rod is oppositely arranged or is staggered with presstressed reinforcing steel.
The anchor slab bearing rod includes bottom longitudinal sections, lateral connection section and top longitudinal sections.
Longitudinal stake longitudinal reinforcement is provided in the pile body.
The arrangement shape and pile body outer profile of the stake longitudinal reinforcement are adapted.
It is provided with pile ring muscle in the pile body, the pile ring flaccidity of tendon and muscle is to being uniformly arranged.
The utility model pre-buried anchor slab in pile body, is arranged presstressed reinforcing steel, then casting concrete, after on anchor slab
Method applies prestressing force to stake, makes to form pre-add axial compressive force in stake, by anchor slab bearing rod by anchor slab, stake longitudinal reinforcement phase
Even, bellows or casing and partial screw threads stirrup are set outside presstressed reinforcing steel.The utility model effectively improves the cracking resistance of stake, resists
Performance is pulled out, the usage amount of regular reinforcement is reduced.
Detailed description of the invention
Fig. 1 is schematic cross-sectional view of the utility model along anchor slab；
Fig. 2 is the diagrammatic cross-section of the utility model；
Wherein:
1 pile body, 2 anchor slab
3 presstressed reinforcing steel, 4 partial screw threads stirrup
5 anchor slab bearing rod, 6 pouring hole
78 pile ring muscle of longitudinal reinforcement.
Specific embodiment
Hereinafter, the utility model is described in detail referring to drawings and examples:
As shown in Figure 1 and 2, a kind of prestressed in-situ depositing concrete uplift pile, including pile body 1 are embedded with cross in the pile body 1
To anchor slab 2,2 upper end of anchor slab is provided with presstressed reinforcing steel 3, and 2 upper end of anchor slab is additionally provided with partial screw threads stirrup 4, institute
Presstressed reinforcing steel 3 is stated to be in partial screw threads stirrup 4.
The presstressed reinforcing steel 3 is prestress wire, compressor wire, prestressing force spiral, eliminates in stress wire
One kind.
Bellows or casing are also provided on the outside of the presstressed reinforcing steel 3.Described sleeve pipe can carry out concrete with the later period
Fill real or real without filling.
The presstressed reinforcing steel 3 can be, but not limited to four.
The anchor slab 2 is annular anchor slab, and the centre bore of the annular anchor slab is pouring hole 6.
The presstressed reinforcing steel 3 is uniformly arranged on anchor slab 2.
Anchor slab bearing rod 5 has been uniformly arranged at 2 outer wall of anchor slab.
The anchor slab bearing rod 5 is oppositely arranged or is staggered with presstressed reinforcing steel 3.
The anchor slab bearing rod 5 is oppositely arranged with presstressed reinforcing steel 3 refers to 5 axis of anchor slab bearing rod and presstressed reinforcing steel 3
Axis is connected across the axis of annular anchor slab.
The anchor slab bearing rod 5 includes bottom longitudinal sections, lateral connection section and top longitudinal sections.
The bottom longitudinal sections are connected with the outer wall of anchor slab 2, and the top longitudinal sections are connected with stake longitudinal reinforcement 7.
Longitudinal stake longitudinal reinforcement 7 is provided in the pile body 1.
The arrangement shape and 1 outer profile of pile body of the stake longitudinal reinforcement 7 are adapted.
Pile ring muscle 8 is provided in the pile body 1, the pile ring muscle 8 is longitudinal to be uniformly arranged.
8 sets of the pile ring muscle is outside stake longitudinal reinforcement 7.
The anchor slab 2 is arranged at away from 1 bottom certain altitude of pile body, and then pre-buried anchor slab 2 connects presstressed reinforcing steel 3, is pouring
Prestressing force is applied to stake using post stretching after complete concrete, makes to form pre-add axial compressive force in stake.
The working principle of the utility model is as follows:
When 1 tension of pile body, pulling force first has to balance out the compressive pre-stress in stake, goes to the stress of stake from compression
Zero stress state starts tensile stress occur in stake, then cracking generates crack when pulling force continues to increase.Prestressed addition
The cracking load that stake can directly be improved, in the identical situation of Restricted Crack Width of stake, the effective tension energy for increasing stake
Power.
The utility model pre-buried anchor slab in pile body, is arranged presstressed reinforcing steel, then casting concrete, after on anchor slab
Method applies prestressing force to stake, makes to form pre-add axial compressive force in stake, by anchor slab bearing rod by anchor slab, stake longitudinal reinforcement phase
Even, bellows or casing and partial screw threads stirrup are set outside presstressed reinforcing steel.The utility model effectively improves the cracking resistance of stake, resists
Performance is pulled out, the usage amount of regular reinforcement is reduced.
Claims (9)
1. a kind of prestressed in-situ depositing concrete uplift pile, including pile body (1), it is characterised in that: be embedded with cross in the pile body (1)
To anchor slab (2), anchor slab (2) upper end is provided with presstressed reinforcing steel (3), and anchor slab (2) upper end is additionally provided with partial screw threads
Stirrup (4), the presstressed reinforcing steel (3) are in partial screw threads stirrup (4).
2. a kind of prestressed in-situ depositing concrete uplift pile according to claim 1, it is characterised in that: the anchor slab (2) is
The centre bore of annular anchor slab, the annular anchor slab is pouring hole (6).
3. a kind of prestressed in-situ depositing concrete uplift pile according to claim 1, it is characterised in that: the presstressed reinforcing steel
(3) it is uniformly arranged on anchor slab (2).
4. a kind of prestressed in-situ depositing concrete uplift pile according to claim 2, it is characterised in that: the anchor slab (2) is outside
Anchor slab bearing rod (5) have been uniformly arranged at wall.
5. a kind of prestressed in-situ depositing concrete uplift pile according to claim 4, it is characterised in that: the anchor slab bearing rod
(5) it is oppositely arranged or is staggered with presstressed reinforcing steel (3).
6. a kind of prestressed in-situ depositing concrete uplift pile according to claim 4, it is characterised in that: the anchor slab bearing rod
It (5) include bottom longitudinal sections, lateral connection section and top longitudinal sections.
7. a kind of prestressed in-situ depositing concrete uplift pile according to claim 1, it is characterised in that: in the pile body (1)
It is provided with longitudinal stake longitudinal reinforcement (7).
8. a kind of prestressed in-situ depositing concrete uplift pile according to claim 7, it is characterised in that: the stake longitudinal reinforcement
(7) arrangement shape and pile body (1) outer profile is adapted.
9. a kind of prestressed in-situ depositing concrete uplift pile according to claim 1, it is characterised in that: in the pile body (1)
It is provided with pile ring muscle (8), the pile ring muscle (8) is longitudinally uniformly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821287243.8U CN208965551U (en) | 2018-08-10 | 2018-08-10 | A kind of prestressed in-situ depositing concrete uplift pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821287243.8U CN208965551U (en) | 2018-08-10 | 2018-08-10 | A kind of prestressed in-situ depositing concrete uplift pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208965551U true CN208965551U (en) | 2019-06-11 |
Family
ID=66752915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821287243.8U Active CN208965551U (en) | 2018-08-10 | 2018-08-10 | A kind of prestressed in-situ depositing concrete uplift pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208965551U (en) |
-
2018
- 2018-08-10 CN CN201821287243.8U patent/CN208965551U/en active Active
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