CN202194131U - Partially prestressed cantilever soldier pile - Google Patents
Partially prestressed cantilever soldier pile Download PDFInfo
- Publication number
- CN202194131U CN202194131U CN2011202586067U CN201120258606U CN202194131U CN 202194131 U CN202194131 U CN 202194131U CN 2011202586067 U CN2011202586067 U CN 2011202586067U CN 201120258606 U CN201120258606 U CN 201120258606U CN 202194131 U CN202194131 U CN 202194131U
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- steel strand
- strand cable
- tensioned
- post
- pile
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Abstract
The utility model discloses a partially prestressed cantilever soldier pile, which comprises a reinforcement cage framework in a pile body and a bearing platform top arranged at the upper surface of the pile body. Post-tensioned prestress steel cables are coaxially arranged on the reinforcement cage framework on one side of the pile body which is tensioned, each steel cable is provided with at least one expanding head, fixed connectors are arranged at the upper ends of the post-tensioned prestress steel cables after the post-tensioned prestress steel cables are tensioned, and the upper ends of the steel cables and the fixed connectors are arranged in the bearing platform. According to different stress upon two sides of the pile body, two sides of the reinforcement cage framework are different in design scheme which relates to reinforced steel bars for the reinforcement cage framework, common reinforced steel bars are used for the stressed side of the reinforcement cage framework, and the post-tensioned prestress steel cables are used for the tensioned side of the reinforcement cage framework. By the aid of the partially prestressed cantilever soldier pile in the above design scheme, integral performance of the pile body is improved, a great deal of steel is saved and better economic benefit is achieved.
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 by a side configuration reinforcement that is drawn; But shortcoming also clearly, and promptly reinforcing bar can not play a role fully, causes bigger waste.
Summary of the invention
The technical problem that the utility model will solve provides a kind of partial prestressing supporting cantilever pile; The tensile region is with partial prestressing steel strand cable; Prestress steel strand cable strength standard value is 5-8 a times of general I II grade reinforcing steel; Give full play to the advantage that the steel strand cable is drawn, practice thrift steel, improve the overall performance of pile foundation.
The utility model is realized through following technical scheme:
A kind of partial prestressing supporting cantilever pile; Comprise the reinforcing bar keel frame in the pile body; Be arranged at the cushion cap face of pile body upper end; Said pile body is drawn, and coaxial line is provided with post-tensioned prestressing steel strand cable on the reinforcing bar keel frame of a side, and post-tensioned prestressing 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.
The further improvement project of the utility model 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.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 with connector;
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 (being that said steel strand cable passes billet).
The utility model further improvement project is that post-tensioned prestressing steel strand cable top is provided with sleeve pipe, bottom and pile body concrete binding (being roughly 1/2nd following positions and the column core bonding of column core height).
The utility model compared with prior art has following obvious advantage:
The utility model is different according to pile body both sides force-bearing situation, and different design schemes is adopted in the reinforcement cage skeleton both sides of pile body, promptly forms the reinforcing bar of reinforcement cage skeleton, and a side of pressurized adopts plain bars, and a side of being drawn adopts post-tensioned prestressing steel strand cable.The utility model has not only improved the overall performance of pile body, and has practiced thrift great deal of steel owing to adopted such design scheme, has favorable economic benefit.
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 reinforcing bar keel frame 9 in the pile body 1, is arranged at the cushion cap face 3 of pile body 1 upper end.Coaxial line is provided with post-tensioned prestressing steel strand cable 4 on the side reinforcing bar keel frame 9 that said pile body 1 is drawn, and a side reinforcing bar keel frame of pressurized is provided with plain bars 2.
As shown in Figure 1, post-tensioned prestressing steel strand cable 4 is provided with an enlarged footing 5, and said enlarged footing 5 is arranged at the lower end of said steel strand cable 4.Enlarged footing 5 is selected the extruding anchor for use in the present embodiment, on the post-tensioned prestressing steel strand cable 4 above the extruding anchor, is provided with billet 7.Still as shown in Figure 1, post-tensioned prestressing steel strand cable 4 tops are provided with sleeve pipe 8, bottom and pile body bonding.Remove said steel strand cable roughly the sleeve pipe at 1/4th following positions (the steel strand cable itself has sleeve pipe, and sliding agent is arranged in the sleeve pipe.If the steel strand cable is not established outer tube, then need add sleeve pipe and pipe in-lubricant in addition).
As shown in Figure 1, post-tensioned prestressing steel strand cable 4 upper ends are provided with the fixed connecting piece 6 after the stretch-draw, and said steel strand cable upper end and connector thereof are positioned at the cushion cap face.Connector 6 is selected anchor clamp for use in the present embodiment.
The utility model prepares process: water pile concrete and the cushion cap face thereof smash; After steel concrete pile body, cushion cap face reach intensity, steel strand cable 4 is carried out stretch-draw; Behind the tensioning fixation, with concrete the stretch-draw hole on the cushion cap face is tamped again, steel strand cable and connector are embedded in the cushion cap face.
Claims (6)
1. partial prestressing supporting cantilever pile; Comprise the reinforcing bar keel frame in the pile body; Be arranged at the cushion cap face of pile body upper end; It is characterized in that: pile body is drawn, and coaxial line is provided with post-tensioned prestressing steel strand cable on the reinforcing bar keel frame of a side, and 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.
2. a kind of partial prestressing supporting cantilever pile as claimed in claim 1 is characterized in that: be provided with an enlarged footing on the said steel strand cable at least.
3. a kind of partial prestressing supporting cantilever pile as claimed in claim 2, it is characterized in that: 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.
4. like claim 2 or 3 described a kind of partial prestressing supporting cantilever piles, it is characterized in that: said enlarged footing is nut or extruding anchor or concrete precast element.
5. a kind of partial prestressing supporting cantilever pile as claimed in claim 4, 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.
6. according to claim 1 or claim 2 a kind of partial prestressing supporting cantilever pile, it is characterized in that: post-tensioned prestressing steel strand cable top is provided with sleeve pipe, bottom and column core bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202586067U CN202194131U (en) | 2011-07-21 | 2011-07-21 | Partially prestressed cantilever soldier pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202586067U CN202194131U (en) | 2011-07-21 | 2011-07-21 | Partially prestressed cantilever soldier pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194131U true CN202194131U (en) | 2012-04-18 |
Family
ID=45949050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202586067U Expired - Lifetime CN202194131U (en) | 2011-07-21 | 2011-07-21 | Partially prestressed cantilever soldier pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202194131U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345291A (en) * | 2011-07-21 | 2012-02-08 | 从卫民 | Partially prestressed supporting cantilever pile |
| CN102644277A (en) * | 2012-04-28 | 2012-08-22 | 从卫民 | Supporting cantilever pile with prestress steel bowstring and reinforced plastic rod composite structure |
| CN102767186A (en) * | 2012-07-16 | 2012-11-07 | 中铁隧道集团有限公司 | Foundation pit containment structure with prestress ribs on vertical soil-retaining structure and construction method |
| CN110528529A (en) * | 2019-07-22 | 2019-12-03 | 中建三局集团有限公司 | A kind of steel-pipe pile supporting construction and its construction method that can be recycled |
-
2011
- 2011-07-21 CN CN2011202586067U patent/CN202194131U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345291A (en) * | 2011-07-21 | 2012-02-08 | 从卫民 | Partially prestressed supporting cantilever pile |
| CN102644277A (en) * | 2012-04-28 | 2012-08-22 | 从卫民 | Supporting cantilever pile with prestress steel bowstring and reinforced plastic rod composite structure |
| CN102767186A (en) * | 2012-07-16 | 2012-11-07 | 中铁隧道集团有限公司 | Foundation pit containment structure with prestress ribs on vertical soil-retaining structure and construction method |
| CN110528529A (en) * | 2019-07-22 | 2019-12-03 | 中建三局集团有限公司 | A kind of steel-pipe pile supporting construction and its construction method that can be recycled |
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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: 20120418 |
|
| CX01 | Expiry of patent term |