CN202543913U - Prestressed supporting cantilever pile provided with reinforced plastic stirrup - Google Patents
Prestressed supporting cantilever pile provided with reinforced plastic stirrup Download PDFInfo
- Publication number
- CN202543913U CN202543913U CN2012201876067U CN201220187606U CN202543913U CN 202543913 U CN202543913 U CN 202543913U CN 2012201876067 U CN2012201876067 U CN 2012201876067U CN 201220187606 U CN201220187606 U CN 201220187606U CN 202543913 U CN202543913 U CN 202543913U
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- reinforced plastic
- pile
- stirrup
- supporting cantilever
- steel strand
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Abstract
The utility model discloses a prestressed supporting cantilever pile provided with a reinforced plastic stirrup. The prestressed supporting cantilever pile provided with the reinforced plastic stirrups comprises a skeleton cage inside a pile body, the skeleton cage is at least provided with a prestressed steel bar at the pulled side of the pile body, and the skeleton cage is provided with a reinforced plastic rod or pipe at the rest part; a stirrup positioned on the skeleton cage is made of the reinforced plastic rod or pipe; and the reinforced plastic rod or pipe is made of carbon fibers, glass fibers or aramid fibers. According to the utility model, different design schemes are adopted for both sides of the steel bar skeleton cage of the pile body according to different stress conditions of both sides of the pile body, namely a post-tensioning prestressed steel cable is configured at a pulled side and the reinforced plastic rod or pipe is configured at a stressed side, and therefore, not only can the advantages of high tensile strength of the post-tensioning prestressed steel cable and high compressive strength of the reinforced plastic rod be sufficiently exerted and the integral performance of a pile foundation be enhanced, but also the manufacturing cost of the prestressing supporting cantilever pile and the engineering cost can be reduced.
Description
Technical field
The utility model relates to building field, is specifically related to foundation pile.
Background technology
Traditional foundation pit supporting pile is evenly to arrange reinforcing bar along the stake periphery, and the pile body loading characteristic is to lean on the soil body one side to be drawn, and leans on foundation ditch limit one side pressurized; The stressed difference in both sides, and stressed not of uniform size causing, therefore; Generally speaking, all be that the advantage of this structure stake is easy construction at a side configuration reinforcement that is drawn; But shortcoming also clearly, and promptly reinforcing bar can not play a role fully, causes bigger waste.Before this, the inventor has proposed name and has been called " a kind of partial prestressing supporting cantilever pile " patent application, and this patent application is different according to pile body both sides force-bearing situation; Different design schemes is adopted in cage of reinforcement cage both sides to pile body; A side that is pressurized adopts plain bars, and a side of being drawn adopts post-tensioned prestressing steel strand cable, has not only improved the overall performance of pile body; And practiced thrift great deal of steel, have favorable economic benefit.But still there is following defective in this technical scheme, the one, need dispose metal material respectively in skeleton cage pressurized, the both sides of being drawn; The 2nd, because reinforcing bar has stronger toughness, be not easy to remove, bring and remove that difficulty is big, to remove cost high.Can select nonmetallic substitution material for use, further reduce the cost of soldier pile, the convenient dismounting be the problem that the sector need be researched and solved.The applicant has proposed " a kind of prestress steel strand cable, reinforced plastic bar composite construction supporting cantilever pile " on the same day, as the part distribution bar of cage of reinforcement cage, disposes prestressed reinforcement with reinforced plastic bar or tubing simultaneously, preferably resolves the problems referred to above.But the stirrup of cage of reinforcement cage still adopts reinforcing bar, still need use the reinforced plastic bar to substitute, and further reduces cost.
Summary of the invention
The technical problem that the utility model will solve provides a kind of prestressing force supporting cantilever pile that is provided with the reinforced plastic stirrup, under the constant situation of the overall performance that guarantees pile foundation, reduces the cost of soldier pile, convenient simultaneously the dismounting.
The utility model is realized through following technical scheme:
A kind of prestressing force supporting cantilever pile that is provided with the reinforced plastic stirrup comprises the skeleton cage in the pile body, and said pile body is drawn on the skeleton cage of a side to be provided with a prestressed reinforcement at least, and the skeleton cage of remainder is provided with reinforced plastic bar or tubing;
Stirrup on the said skeleton cage is reinforced plastic bar or tubing.
The further improvement project of the utility model is that said reinforced plastic bar or tubing are carbon fiber, glass fiber or aromatic polyamide fiber reinforced plastics bar or tubing.Reinforced plastic bar or tubing abbreviation: FRP, carbon fiber, glass fiber or aramid fiber bar or tubing abbreviation are respectively: CFRP, GFRP, AFRP.
The utility model further improvement project is that the external surface of reinforced plastic bar or tubing is provided with convexity or is provided with screw thread or is rough surface (increase frictional force).
Said steel strand cable upper end is provided with the fixed connecting piece after the stretch-draw, and said steel strand cable upper end and connector thereof are positioned at the cushion cap face, between connector and cushion cap face, are provided with billet.
The utility model further improvement project is, is provided with an enlarged footing on the said steel strand cable at least, and when enlarged footing was one, said enlarged footing was arranged at the lower end of steel strand cable;
When enlarged footing is one when above, said enlarged footing sets gradually to the upper end from the lower end of steel strand cable.
The utility model further improvement project is that said enlarged footing is nut or extruding anchor or concrete precast element.
The utility model further improvement project is, when enlarged footing was concrete precast element, said concrete precast element was provided with the hole, and post-tensioned prestressing steel strand cable passes said hole and connects fixing;
When enlarged footing is nut or extruding anchor, on the post-tensioned prestressing steel strand cable above nut or the extruding anchor, be provided with backing plate.
The utility model further improvement project is that the steel strand cable top between fixed connecting piece and enlarged footing is provided with sleeve pipe, bottom and pile body bonding.
The utility model compared with prior art has following obvious advantage:
One, the utility model is different according to pile body both sides force-bearing situation; Skeleton cage distribution bar to pile body adopts different design schemes; One side of promptly being drawn disposes post-tensioned prestressing steel strand cable; Remainder configuration reinforced plastic bar or tubing, simultaneously, the stirrup on the skeleton cage also adopts reinforced plastic bar or tubing.Put down in writing according to relevant document; The compressive strength of reinforced plastic bar is more than the twice of reinforcing bar, and its price is lower than reinforcing bar, therefore; Make soldier pile with this substitution material; Can give full play to the advantage that prestress steel strand cable tensile strength is high, reinforced plastic bar compressive strength is high, improve the overall performance of pile foundation, can reduce cost of manufacture, the reduction construction costs of soldier pile again.
Two, because the reinforced plastic bar belongs to fragile material, anti-fracture ability a little less than, therefore made things convenient for and removed construction.
Description of drawings
Fig. 1 is the axial cross-sectional schematic of the utility model.
Fig. 2 is Figure 1A-A cross-sectional schematic.
The specific embodiment
Like Fig. 1, shown in 2, the utility model comprises the skeleton cage in the pile body 1, and said pile body 1 is drawn the skeleton muscle on the skeleton cage 2 of a side to be made as 4 post-tensioned prestressing steel strand cables 4, and the skeleton muscle of compression-side and all the other parts is a reinforced plastic bar 3.As shown in Figure 1, the stirrup 2 on the skeleton cage adopts reinforced plastic bar (in the present embodiment, stirrup is a spiral bar).
In the present embodiment, said reinforced plastic bar is the carbon fiber bar, and the diameter of reinforced plastic bar is 10mm (diameter of rod is according to the size setting of pile body holding capacity).
In the present embodiment, the external surface of reinforced plastic bar 3 is provided with screw thread (diagram is not provided).
As shown in Figure 1, said steel strand cable 4 upper ends are provided with the fixed connecting piece 5 after the stretch-draw, and said steel strand cable upper end and connector thereof are positioned at the cushion cap face, between connector and cushion cap face, are provided with billet 7.In the present embodiment, connector 5 is selected ground tackle for use.
Said steel strand cable 4 lower ends are provided with an enlarged footing 6, and said enlarged footing 6 is for the extruding anchor, and is as shown in Figure 1, on the post-tensioned prestressing steel strand cable 4 above the extruding anchor 6, are provided with billet 7.
Still as shown in Figure 1, the steel strand cable top between fixed connecting piece 5 and enlarged footing 6 is provided with sleeve pipe 8, steel strand cable bottom and pile body bonding.
After pile body perfusion was good, cushion cap (can not do cushion cap for stressed less pile body, cushion cap or be referred to as Guan Liang) was done in the upper end then.Wait to reach certain intensity, with ground tackle it is locked again behind the stretch-draw steel strand cable.Can be according to the excavation of foundation pit degree of depth, gradation stretch-draw steel strand cable for example, excavates one of certain depth post tensioning, digs one of the stretch-draw again of certain degree of depth again.。。。
Said reinforced plastic bar is the glass fiber bar.All the other are implemented like embodiment 1.
Said reinforced plastic bar is the aramid fiber bar.All the other are implemented like embodiment 1.
Claims (8)
1. prestressing force supporting cantilever pile that is provided with the reinforced plastic stirrup; Comprise the skeleton cage in the pile body; It is characterized in that: said pile body is drawn on the skeleton cage of a side to be provided with a prestressed reinforcement at least, and the skeleton cage of remainder is provided with reinforced plastic bar or tubing;
Stirrup on the said skeleton cage is reinforced plastic bar or tubing.
2. a kind of prestressing force supporting cantilever pile that is provided with the reinforced plastic stirrup as claimed in claim 1, it is characterized in that: said reinforced plastic bar or tubing are carbon fiber, glass fiber or aramid fiber bar or tubing.
3. according to claim 1 or claim 2 a kind of prestressing force supporting cantilever pile that is provided with the reinforced plastic stirrup, it is characterized in that: the external surface of reinforced plastic bar or tubing is provided with convexity or is provided with screw thread or is rough surface.
4. a kind of prestressing force supporting cantilever pile that is provided with the reinforced plastic stirrup as claimed in claim 1; It is characterized in that: said steel strand cable upper end is provided with the fixed connecting piece after the stretch-draw; Said steel strand cable upper end and connector thereof are positioned at the cushion cap face, between connector and cushion cap face, are provided with backing plate.
5. a kind of prestressing force supporting cantilever pile that is provided with the reinforced plastic stirrup as claimed in claim 1, it is characterized in that: be provided with an enlarged footing on the said steel strand cable at least, when enlarged footing was one, said enlarged footing was arranged at the lower end of steel strand cable;
When enlarged footing is one when above, said enlarged footing sets gradually to the upper end from the lower end of steel strand cable.
6. a kind of prestressing force supporting cantilever pile that is provided with the reinforced plastic stirrup as claimed in claim 5 is characterized in that: said enlarged footing is nut or extruding anchor or concrete precast element.
7. a kind of prestressing force supporting cantilever pile that is provided with the reinforced plastic stirrup as claimed in claim 6, it is characterized in that: when enlarged footing was concrete precast element, said concrete precast element was provided with the hole, and post-tensioned prestressing steel strand cable passes said hole and connects fixing;
When enlarged footing is nut or extruding anchor, on the post-tensioned prestressing steel strand cable above nut or the extruding anchor, be provided with billet.
8. a kind of prestressing force supporting cantilever pile that is provided with the reinforced plastic stirrup as claimed in claim 5, it is characterized in that: the steel strand cable top between fixed connecting piece and enlarged footing is provided with sleeve pipe, bottom and pile body bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201876067U CN202543913U (en) | 2012-04-28 | 2012-04-28 | Prestressed supporting cantilever pile provided with reinforced plastic stirrup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201876067U CN202543913U (en) | 2012-04-28 | 2012-04-28 | Prestressed supporting cantilever pile provided with reinforced plastic stirrup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202543913U true CN202543913U (en) | 2012-11-21 |
Family
ID=47164567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201876067U Expired - Lifetime CN202543913U (en) | 2012-04-28 | 2012-04-28 | Prestressed supporting cantilever pile provided with reinforced plastic stirrup |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202543913U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644280A (en) * | 2012-04-28 | 2012-08-22 | 从卫民 | Retaining cantilever pile with reinforced plastic stirrups |
| CN102644281A (en) * | 2012-04-28 | 2012-08-22 | 从卫民 | Prestressed supporting cantilever pile with reinforcing plastic stirrups |
| CN103266595A (en) * | 2013-06-03 | 2013-08-28 | 建华建材（中国）投资有限公司 | Rigid pile for composite foundation treatment and production method thereof |
| CN104612133A (en) * | 2015-01-15 | 2015-05-13 | 安徽省建筑科学研究设计院 | Concrete precast pile with mixed reinforcement of glass fiber-reinforced polymers and steel bars |
-
2012
- 2012-04-28 CN CN2012201876067U patent/CN202543913U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644280A (en) * | 2012-04-28 | 2012-08-22 | 从卫民 | Retaining cantilever pile with reinforced plastic stirrups |
| CN102644281A (en) * | 2012-04-28 | 2012-08-22 | 从卫民 | Prestressed supporting cantilever pile with reinforcing plastic stirrups |
| CN103266595A (en) * | 2013-06-03 | 2013-08-28 | 建华建材（中国）投资有限公司 | Rigid pile for composite foundation treatment and production method thereof |
| CN103266595B (en) * | 2013-06-03 | 2016-02-24 | 建华建材（中国）投资有限公司 | A kind of rigid pile for complex ground treatment and production method thereof |
| CN104612133A (en) * | 2015-01-15 | 2015-05-13 | 安徽省建筑科学研究设计院 | Concrete precast pile with mixed reinforcement of glass fiber-reinforced polymers and steel bars |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
|
| CX01 | Expiry of patent term |