CN204023561U - The recessed bent cross-section hollow stake of prestressing force - Google Patents
The recessed bent cross-section hollow stake of prestressing force Download PDFInfo
- Publication number
- CN204023561U CN204023561U CN201420319151.9U CN201420319151U CN204023561U CN 204023561 U CN204023561 U CN 204023561U CN 201420319151 U CN201420319151 U CN 201420319151U CN 204023561 U CN204023561 U CN 204023561U
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- CN
- China
- Prior art keywords
- stake
- cross
- prestressing force
- recessed bent
- recessed
- Prior art date
- 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
Links
- 210000003205 muscle Anatomy 0.000 claims abstract description 17
- 239000004567 concrete Substances 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000002689 soil Substances 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract description 4
- 238000005056 compaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000011178 precast concrete Substances 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses the recessed bent cross-section hollow stake of a kind of prestressing force, its cross-sectional perimeter is made up of four recessed bent limits and four corner cuts, and described corner cut is positioned at the intersection on adjacent two recessed bent limits; Length direction along stake has the central through hole that runs through total length; The entity part of stake comprises reinforcing cage, end plate and steel fibrous concrete layer and forms, and described reinforcing cage is made up of the thick main muscle of the prestressing force be arranged in each corner cut, the secondary thick main muscle of the many prestressing force be evenly arranged on each recessed bent limit and the stirrup be arranged on each concave curved surface; Described end plate is distributed in a two ends, and its cross sectional shape is consistent with stake cross section.The recessed bent cross-section hollow stake of this construction pre-stress obviously can increase the frictional force between pile body and the soil body, the bending resistance improving stake and reduction soil compaction effect.
Description
Technical field
The utility model relates to precast concrete pile element, particularly a kind of prestressing concrete hollow pile of new type section.
Background technology
In the middle of China's engineering construction, the circular pile tube of prestressing force and hollow square pile are widely used in the underpin such as house, bridge, harbour, harbour, at present, pile for prestressed pipe generally adopts cylindrical, it is made up of the concrete of circular reinforcing cage and parcel reinforcing cage, the profile of this pile for prestressed pipe is generally linear pattern, and this pile tube exists the shortcoming little with soil body frictional force; Along with further developing of stake technology, pre-stress hollow square pile more and more accept by masses, pre-stress hollow square pile has the advantage that pile body outer perimeter and stake second moment of area are all large than cylindrical pile tube when identical concrete amount, it can thus be appreciated that, when identical concrete amount, large than cylindrical pile tube of the bearing capacity of pre-stress hollow square pile pile body, however, the frictional force of pre-stress hollow square pile and the soil body is little or can not meet the requirement of practical application.
Summary of the invention
The purpose of this utility model is to provide a kind of recessed bent cross-section hollow stake of prestressing force that obviously can increase the frictional force between pile body and the soil body, the bending resistance improving stake and reduction soil compaction effect.
For achieving the above object, the stake cross-sectional perimeter of the recessed bent cross-section hollow stake of the utility model prestressing force is made up of four recessed bent limits and four corner cuts, and described corner cut is positioned at the intersection on adjacent two recessed bent limits; Length direction along stake has the central through hole that runs through total length; The entity part of stake comprises reinforcing cage, end plate and steel fibrous concrete layer and forms, and described reinforcing cage is made up of the thick main muscle of the prestressing force be arranged in each corner cut, the secondary thick main muscle of the many prestressing force be evenly arranged on each recessed bent limit and the stirrup be arranged on each concave curved surface; Described end plate is distributed in a two ends, and its cross sectional shape is consistent with stake cross section.
Described layer of concrete contains by the steel fibre of preset blending ratio homogeneous blend in concrete.
The described central through hole cross section running through total length along pile length direction is rounded.
The each corner cut of the thick main muscle of described prestressing force arranges more than one.
The recessed bent cross-section hollow stake of said structure prestressing force is outside in recessed to form by certain radian by pre-stress hollow square pile cross section, and between adjacent recessed bent limit, intersection has a corner cut, and corner cut has certain thickness, and design parameter is determined according to stake sectional dimension; Its beneficial effect for can increase an outer perimeter length, thus obviously can increase the frictional force between oil and pile body.
The reinforcing cage of the recessed bent cross-section hollow stake of said structure prestressing force is made up of the thick main muscle of prestressing force, prestressing force time thick main muscle and stirrup, prestressing force time thick main muscle diameter is less than the thick main muscle of prestressing force, according to the size of corner cut, the many thick main muscle of prestressing force also can be arranged at corner cut place; Described stirrup is made up of the reinforcing bar in four recessed bent cross sections, and welds at corner cut place; Its beneficial effect is the bending resistance that can increase corner cut.
The steel fibrous concrete of the recessed bent cross-section hollow stake of said structure prestressing force, by a certain percentage to homogeneous blend steel fibre in concrete, has the booster action to stake.
The utility model beneficial effect is: the first, and the utility model, when identical concrete amount, can increase pile body outer perimeter, increases the frictional force of oil and pile body; The second, increase pile body second moment of area, increase the bending resistance of pile body; 3rd, reduce soil compaction effect.
Accompanying drawing explanation
Fig. 1 is the positive cross-sectional schematic of the recessed bent cross-section hollow stake of the utility model prestressing force.
Fig. 2 is the utility model prestressing force recessed bent cross-section hollow stake side cross-sectional schematic.
reference numeral:recessed bent limit 1, central through hole 2, prestressing force time thick main muscle 3, the thick main muscle 4 of prestressing force, stirrup 5, steel fibrous concrete layer 6, end plate 7 and corner cut 8.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the recessed bent cross-section hollow stake of the utility model prestressing force is described in further detail.
Shown in Fig. 1 ~ Fig. 2, the stake cross-sectional perimeter of the recessed bent cross-section hollow stake of the utility model prestressing force is made up of four recessed bent limits 1 and four corner cuts 8, and described corner cut 8 is positioned at the intersection on adjacent two recessed bent limits 1; Length direction along stake has the circular central through hole 2 that runs through total length; The entity part of stake comprises reinforcing cage, end plate 7 and steel fibrous concrete layer 6 and forms, and described reinforcing cage is made up of the thick main muscle 4 of the prestressing force be arranged in each corner cut 8, the secondary thick main muscle 3 of the many prestressing force be evenly arranged on each recessed bent limit and the stirrup 5 be arranged on each concave curved surface; Described end plate is distributed in a two ends, and its cross sectional shape is consistent with stake cross section; Described layer of concrete contains by the steel fibre of preset blending ratio homogeneous blend in concrete.
Claims (3)
1. the recessed bent cross-section hollow stake of prestressing force, is characterized in that: its stake cross-sectional perimeter is made up of four recessed bent limits and four corner cuts, and described corner cut is positioned at the intersection on adjacent two recessed bent limits; Length direction along stake has the central through hole that runs through total length; The entity part of stake comprises reinforcing cage, end plate and steel fibrous concrete layer and forms, and described reinforcing cage is made up of the thick main muscle of the prestressing force be arranged in each corner cut, the secondary thick main muscle of the many prestressing force be evenly arranged on each recessed bent limit and the stirrup be arranged on each concave curved surface; Described end plate is distributed in a two ends, and its cross sectional shape is consistent with stake cross section.
2. the recessed bent cross-section hollow stake of prestressing force according to claim 1, is characterized in that: the described central through hole cross section running through total length along pile length direction is rounded.
3. the recessed bent cross-section hollow stake of prestressing force according to claim 1, is characterized in that: each corner cut of the thick main muscle of described prestressing force arranges more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319151.9U CN204023561U (en) | 2014-06-16 | 2014-06-16 | The recessed bent cross-section hollow stake of prestressing force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319151.9U CN204023561U (en) | 2014-06-16 | 2014-06-16 | The recessed bent cross-section hollow stake of prestressing force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204023561U true CN204023561U (en) | 2014-12-17 |
Family
ID=52063448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420319151.9U Expired - Fee Related CN204023561U (en) | 2014-06-16 | 2014-06-16 | The recessed bent cross-section hollow stake of prestressing force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204023561U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107988994A (en) * | 2017-06-27 | 2018-05-04 | 吴健 | Universal prestressing force ecoscape combines shore protection |
| CN109183837A (en) * | 2017-07-14 | 2019-01-11 | 吴健 | The construction method and stress stake of piping lane, prestressing combination supporting and piping lane |
-
2014
- 2014-06-16 CN CN201420319151.9U patent/CN204023561U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107988994A (en) * | 2017-06-27 | 2018-05-04 | 吴健 | Universal prestressing force ecoscape combines shore protection |
| CN107988994B (en) * | 2017-06-27 | 2023-05-16 | 建华建材科技(江苏)有限公司 | Universal prestress ecological landscape combined revetment |
| CN109183837A (en) * | 2017-07-14 | 2019-01-11 | 吴健 | The construction method and stress stake of piping lane, prestressing combination supporting and piping lane |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 |