CN203229946U - External anti-shear structure for prestressed hollow square pile - Google Patents
External anti-shear structure for prestressed hollow square pile Download PDFInfo
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- CN203229946U CN203229946U CN 201320151566 CN201320151566U CN203229946U CN 203229946 U CN203229946 U CN 203229946U CN 201320151566 CN201320151566 CN 201320151566 CN 201320151566 U CN201320151566 U CN 201320151566U CN 203229946 U CN203229946 U CN 203229946U
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Abstract
The utility model relates to an external anti-shear structure for a prestressed hollow square pile. The external anti-shear structure comprises the prestressed hollow square pile which is provided with a center through hole in the center along the length direction thereof, the through hole penetrates the whole prestressed hollow square pile, and the cross section of the center through hole is square. The cross section of the outer circumference of the prestressed hollow square pile is square. The prestressed hollow square pile mainly comprises a reinforcement cage, a concrete layer and end plates. The concrete layer coats the reinforcement cage inside, and the cross section of entire concrete layer is square. The end plates are respectively arranged at two ends of the concrete layer, and the outer surface of the concrete layer is coated with the anti-shear structure along the long axis direction of the prestressed hollow square pile.
Description
Technical field
The utility model relates to a kind of external pre-stress hollow square pile shear structure, a kind of structure that can improve the pre-stress hollow square pile shear behavior specifically.
Background technology
The pre-stressed concrete hollow square stake is a kind of elongated square-outside and round-inside uniform section precast unit that professional factory adopts technologies such as pretensioned prestressing, centrifugal forming and stream curing to make, and is transported to the soil spreading and sinks to the underground basis that becomes building.Its stratum that is suitable for is that stream is moulded, the soft foundation of soft-plastic state, and bearing stratum is preferably argillic horizon, layer of sand, buried basement rock, and severely-weathered rock stratum or weathering remain the stratum of thicker soil, is particularly useful for the thicker ground of soft layer.
Pre-stress hollow square pile in use in present market, the structure of its pile body all is the outer wrap last layer layer of concrete at reinforcing cage usually, the shear behavior of its pile body and the shear behavior of reinforcing cage are closely related, and its shearing resistance of existing reinforcing cage master muscle performance is mainly reflected on the main muscle, and the quantity of the main muscle of formation reinforcing cage is fewer, so shear behavior is not fine.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of structure that can improve the pre-stress hollow square pile shear behavior.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of external pre-stress hollow square pile shear structure, and its innovative point is: mainly comprise a pre-stress hollow square pile;
Has a central through hole that runs through whole pre-stress hollow square pile at the pre-stress hollow square pile center along described pre-stress hollow square pile length direction, the cross section of described central through hole is square, and four angles of the cross section of square central through hole are arc chord angle, and the periphery cross section of described pre-stress hollow square pile is square;
The pile body of described pre-stress hollow square pile mainly comprises reinforcing cage, layer of concrete and end plate, reinforcing cage is made up of around stirrup two parts of described main muscle some main muscle and spirals that extend along the hollow square pile length direction, in described layer of concrete is wrapped in reinforcing cage, and the cross section of monolithic concrete layer is square-shaped, and described end plate is separately positioned on the two ends of layer of concrete;
Long axis direction along hollow square pile on the external surface of described layer of concrete is coated with one deck shear structure.
Further, described shear structure is made up of some reinforcing ribs, and described reinforcing rib is evenly distributed on the external surface of layer of concrete, and the cross section of reinforcing rib is the D shape.
Advantage of the present utility model is: at pre-stress hollow square pile
Description of drawings
Fig. 1 is the elevation of external pre-stress hollow square pile shear structure of the present utility model.
Fig. 2 is the lateral view of external pre-stress hollow square pile shear structure of the present utility model.
The specific embodiment
By schematic diagram shown in Figure 1 as can be known, pre-stress hollow square pile seal structure of the present utility model is mainly and pre-stress hollow square pile.
Pre-stress hollow square pile mainly comprises reinforcing cage, layer of concrete 8 and end plate 3 three parts, reinforcing cage mainly is made up of main muscle 1 and stirrup 2 two parts, main muscle 1 has some, length direction along pre-stress hollow square pile extends, and all main muscle 1 evenly distribute round the circumferencial direction of pre-stress hollow square pile, stirrup 2 integral body are shape in the shape of a spiral, and be rotated winding round all main muscle 1, in layer of concrete 8 is wrapped in whole reinforcing cage, and whole layer of concrete 8 is rectangular structure, the cross section of layer of concrete 8 is square-shaped, and end plate 3 is separately positioned on the two ends of layer of concrete 8.
By schematic diagram shown in Figure 2 as can be known, be provided with a central through hole 5 in the center of pre-stress hollow square pile, central through hole 5 runs through whole pre-stress hollow square pile along the pre-stress hollow square pile length direction, the periphery cross section of pre-stress hollow square pile is square, the cross section of central through hole 5 also is square, and each bar seamed edge 6 of the cross section of square central through hole 5 equates that with distance between the seamed edge of end plate 3 angle between every adjacent two seamed edges 6 is arc chord angle 7.
On the external surface of four sides of pre-stress hollow square pile long axis direction, all be coated with one deck shear structure at layer of concrete 8, shear structure is made up of some equally distributed reinforcing ribs 4, and reinforcing rib 4 extends to end plate 3 places and end plate 3 is covered, the cross section of reinforcing rib 4 is the D shape, each reinforcing rib 4 measure-alike, when reinforcing rib 4 its summits to the distance of bottom between 5cm-10cm, the distance between the summit of adjacent reinforcing rib 4 is between 5cm-10cm.
Claims (2)
1. an external pre-stress hollow square pile shear structure is characterized in that: mainly comprise a pre-stress hollow square pile;
Has a central through hole that runs through whole pre-stress hollow square pile at the pre-stress hollow square pile center along described pre-stress hollow square pile length direction, the cross section of described central through hole is square, and four angles of the cross section of square central through hole are arc chord angle, and the periphery cross section of described pre-stress hollow square pile is square;
The pile body of described pre-stress hollow square pile mainly comprises reinforcing cage, layer of concrete and end plate, reinforcing cage is made up of around stirrup two parts of described main muscle some main muscle and spirals that extend along the hollow square pile length direction, in described layer of concrete is wrapped in reinforcing cage, and the cross section of monolithic concrete layer is square-shaped, and described end plate is separately positioned on the two ends of layer of concrete;
Long axis direction along hollow square pile on the external surface of described layer of concrete is coated with one deck shear structure.
2. external pre-stress hollow square pile shear structure according to claim 1, it is characterized in that: described shear structure is made up of some reinforcing ribs, and described reinforcing rib is evenly distributed on the external surface of layer of concrete, and the cross section of reinforcing rib is the D shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320151566 CN203229946U (en) | 2013-03-29 | 2013-03-29 | External anti-shear structure for prestressed hollow square pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320151566 CN203229946U (en) | 2013-03-29 | 2013-03-29 | External anti-shear structure for prestressed hollow square pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203229946U true CN203229946U (en) | 2013-10-09 |
Family
ID=49286079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320151566 Expired - Fee Related CN203229946U (en) | 2013-03-29 | 2013-03-29 | External anti-shear structure for prestressed hollow square pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203229946U (en) |
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2013
- 2013-03-29 CN CN 201320151566 patent/CN203229946U/en not_active Expired - Fee Related
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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: 20131009 Termination date: 20180329 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |