CN202039354U - Prestressed concrete hollow square pile - Google Patents
Prestressed concrete hollow square pile Download PDFInfo
- Publication number
- CN202039354U CN202039354U CN 201120141602 CN201120141602U CN202039354U CN 202039354 U CN202039354 U CN 202039354U CN 201120141602 CN201120141602 CN 201120141602 CN 201120141602 U CN201120141602 U CN 201120141602U CN 202039354 U CN202039354 U CN 202039354U
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- China
- Prior art keywords
- reinforcement cage
- pile
- pile body
- hollow square
- steel reinforcement
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- 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.)
- Expired - Fee Related
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- 239000011513 prestressed concrete Substances 0.000 title abstract 3
- 230000002787 reinforcement Effects 0.000 claims abstract description 60
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 10
- 239000004567 concrete Substances 0.000 claims description 34
- 210000003205 muscle Anatomy 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 abstract description 6
- 238000010008 shearing Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 14
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 6
- 239000011150 reinforced concrete Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
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Abstract
A prestressed concrete hollow square pile comprises a pile body with a square cross section, wherein metal end plates are connected to the two ends of the pipe body respectively; the pile body comprises a first steel reinforcement cage and a second steel reinforcement cage which are concentrically arranged, the first steel reinforcement cage is located on the inner side of the second steel reinforcement cage, and the two ends of the first steel reinforcement cage are respectively and fixedly connected with the metal end plates. The prestressed concrete hollow square pile provided by the utility model has the advantages that the structural strength of piling is further enhanced and the bending resistance and shearing resistance of the pile body are improved.
Description
Technical Field
The utility model relates to a foundation pile material, especially a hollow square pile of concrete prestressing force among the construction field foundation pile engineering.
Background
The reinforced concrete structure is used in large scale in the engineering world in the 20 th century, and a large amount of reinforced concrete pile materials are also used in foundation pile engineering in the field of buildings. Generally, reinforcing materials such as reinforcing steel bars are added into concrete to work together with the concrete, the reinforcing steel bars bear tensile force, the concrete bears compressive stress parts, and therefore the obtained pile material can provide good single-pile bearing capacity and support as a building foundation. Because the tensile property of the concrete is poor, the reinforced concrete pile material is easy to crack, and the service life of the pile material is influenced.
The prestressed reinforced concrete pile material is characterized in that after the main reinforcing steel bars of the pile material are pre-tensioned, compressive stress is applied to the concrete of the pile body, so that the tensile property of the pile material is improved, but because the main reinforcing steel bars of the pile material are pre-tensioned, the brittleness of the main reinforcing steel bars is increased, and when the pile material is bent and sheared, the main reinforcing steel bars of the pile material are easily damaged, so that the pile material is damaged. Therefore, it is required to further improve the bending and shearing resistance of the prestressed reinforced concrete pile.
SUMMERY OF THE UTILITY MODEL
The utility model provides a hollow square pile of concrete prestressing force to reduce or avoid the aforementioned problem.
In order to solve the problem, the utility model provides a hollow square pile of concrete prestressing force, be square pile body including the cross section, the pile body both ends respectively are connected with a metal end plate, the pile body is including concentric first steel reinforcement cage and the second steel reinforcement cage of arranging, first steel reinforcement cage is located the second steel reinforcement cage is inboard, first steel reinforcement cage both ends respectively with metal end plate fixed connection.
Preferably, the first reinforcement cage comprises a plurality of first main reinforcements extending along the axial direction of the pile body and a first stirrup, and the first stirrup is welded on the first main reinforcements in a spiral shape; the second steel reinforcement cage includes a plurality of edges second owner muscle and the second stirrup of pile body axial extension, the second stirrup is the heliciform welding and is in on the second owner muscle, the length of second owner muscle is than first owner muscle is short.
Preferably, the first main rib is in a first square layout, the second main rib is in a second square layout, and the first square is located inside the second main rib.
Preferably, connecting steel bars are welded between the first reinforcement cage and the second reinforcement cage.
Preferably, the connecting reinforcement is disposed between the first main reinforcement and the second main reinforcement.
Preferably, a central through hole penetrating through the whole pile body is formed in the center of the pile body along the longitudinal axis direction of the pile body.
The utility model provides a hollow square pile of concrete prestressing force through first steel reinforcement cage and the second steel reinforcement cage that sets up concentric arrangement in its pile body, has further strengthened the structural strength of stake material, has promoted the bending resistance shear behavior of pile body.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,
fig. 1 is a schematic structural view of a concrete prestressed hollow square pile according to an embodiment of the present invention;
FIG. 2 is a top view of the concrete prestressed hollow square pile shown in FIG. 1;
fig. 3 is a schematic cross-sectional view of the concrete prestressed hollow square pile shown in fig. 1.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.
The structure and the principle of the concrete prestressed hollow square pile according to the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a concrete prestressed hollow square pile according to an embodiment of the present invention; FIG. 2 is a top view of the concrete prestressed hollow square pile shown in FIG. 1; fig. 3 is a schematic cross-sectional view of the concrete prestressed hollow square pile shown in fig. 1. Particularly, the utility model provides a hollow square pile of concrete prestressing force, be square pile body including the cross section, the pile body both ends respectively are connected with a metal end plate 3, the pile body is including concentric first steel reinforcement cage and the second steel reinforcement cage of arranging, first steel reinforcement cage is located the second steel reinforcement cage is inboard, first steel reinforcement cage both ends respectively with 3 fixed connection of metal end plate.
The metal end plate 3 is fixedly connected with the first reinforcement cage, so that the concrete prestressed hollow square pile can have better impact resistance and a much smaller pile head breakage rate; meanwhile, a larger welding perimeter is obtained, so that the effective welding strength between each section of pile during pile splicing is fully ensured, the phenomenon of joint desoldering or displacement of the concrete prestressed hollow square pile during construction is greatly reduced, and the pile forming quality is better.
The first reinforcement cage is positioned on the inner side of the second reinforcement cage and is fixedly connected with the metal end plate 3, so that the pile body of the concrete prestressed hollow square pile can reduce or offset the tensile stress of the concrete 2 of the pile body caused by load, and the tensile stress of the pile body is controlled in a small range, so that the occurrence and development of cracks of the concrete 2 can be delayed, and the anti-cracking performance and the rigidity of a component are improved.
In another embodiment, the first reinforcement cage includes a plurality of first main reinforcements 11 extending along the axial direction of the pile body and a first stirrup 12, and the first stirrup 12 is spirally welded on the first main reinforcements 11; the second steel reinforcement cage includes a plurality of edges second owner muscle 21 and the second stirrup 22 of pile body axial extension, second stirrup 22 is the heliciform welding and is in on the second owner muscle 21, the length of second owner muscle 21 is than first owner muscle 11 is short.
The first stirrups 12 are welded on the first main reinforcements 11 in a spiral manner, so that mechanical automatic welding is facilitated, meanwhile, the first reinforcement cage has good anti-stretching and anti-torsion properties due to the spiral first stirrups 12, and similarly, the second reinforcement cage also has good anti-stretching and anti-torsion properties due to the spiral second stirrups 22 which are welded on the second main reinforcements 21; therefore, the first reinforcement cage and the second reinforcement cage can reduce the bending stress of the concrete 2 of the pile body caused by the load, so that the bending stress of the pile body is controlled in a small range, the occurrence and the development of cracks of the concrete 2 can be delayed, and the anti-cracking performance and the rigidity of the component are improved.
In another specific embodiment, the first main rib has a first square layout, the second main rib has a second square layout, and the first square is located inside the second main square.
In another embodiment, the connecting steel bars 13 are welded between the first steel bar cage and the second steel bar cage, so that the structural strength of the pile body can be further enhanced.
In a preferred embodiment, the connecting reinforcement 13 is arranged between the first main reinforcement 11 and the second main reinforcement 21.
In another embodiment, a central through hole penetrating through the whole pile body is formed in the center of the pile body along the longitudinal axis direction of the pile body, so that the thickness of the concrete 2 can be effectively reduced while the structural strength of the pile body is guaranteed, and the self weight of the concrete prestressed hollow square pile is reduced.
The utility model provides a hollow square pile of concrete prestressing force through first steel reinforcement cage and the second steel reinforcement cage that sets up concentric arrangement in its pile body, has further strengthened the structural strength of stake material, has promoted the bending resistance shear behavior of pile body.
It is to be understood by those skilled in the art that while the present invention has been described in terms of several embodiments, it is not intended that each embodiment cover a separate embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including all technical equivalents which are encompassed by the claims.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.
Claims (6)
1. The utility model provides a hollow square pile of concrete prestressing force, includes that the cross section is square pile body, the pile body both ends respectively are connected with a metal end plate, a serial communication port, the pile body is including first steel reinforcement cage and the second steel reinforcement cage of arranging with one heart, first steel reinforcement cage is located the second steel reinforcement cage is inboard, first steel reinforcement cage both ends respectively with metal end plate fixed connection.
2. The concrete prestressed hollow square pile according to claim 1, wherein said first reinforcement cage comprises a plurality of first main reinforcements extending in the axial direction of said pile body and first stirrups spirally welded to said first main reinforcements; the second steel reinforcement cage includes a plurality of edges second owner muscle and the second stirrup of pile body axial extension, the second stirrup is the heliciform welding and is in on the second owner muscle, the length of second owner muscle is than first owner muscle is short.
3. The concrete prestressed hollow square pile of claim 2, wherein said first main reinforcement is in a first square configuration and said second main reinforcement is in a second square configuration, said first square configuration being located within said second square configuration.
4. The concrete prestressed hollow square pile according to claim 3, wherein connecting steel bars are welded between said first reinforcement cage and said second reinforcement cage.
5. The concrete prestressed hollow square pile according to claim 4, wherein said connecting reinforcement is disposed between said first main reinforcement and said second main reinforcement.
6. The concrete prestressed hollow square pile according to claim 5, wherein said pile body has a central through hole extending through the entire pile body at the center thereof in the longitudinal direction of said pile body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120141602 CN202039354U (en) | 2011-05-06 | 2011-05-06 | Prestressed concrete hollow square pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120141602 CN202039354U (en) | 2011-05-06 | 2011-05-06 | Prestressed concrete hollow square pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202039354U true CN202039354U (en) | 2011-11-16 |
Family
ID=44966804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120141602 Expired - Fee Related CN202039354U (en) | 2011-05-06 | 2011-05-06 | Prestressed concrete hollow square pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202039354U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979086A (en) * | 2012-12-17 | 2013-03-20 | 青岛兴河建材有限公司 | Prestressed concrete square pile and manufacturing method thereof |
| CN102995628A (en) * | 2012-12-17 | 2013-03-27 | 青岛兴河建材有限公司 | Precast reinforced concrete square pile and manufacturing method thereof |
-
2011
- 2011-05-06 CN CN 201120141602 patent/CN202039354U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979086A (en) * | 2012-12-17 | 2013-03-20 | 青岛兴河建材有限公司 | Prestressed concrete square pile and manufacturing method thereof |
| CN102995628A (en) * | 2012-12-17 | 2013-03-27 | 青岛兴河建材有限公司 | Precast reinforced concrete square pile and manufacturing method thereof |
| CN102979086B (en) * | 2012-12-17 | 2013-09-04 | 青岛兴河建材有限公司 | Prestressed concrete square pile and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20180506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |