CN202194132U - Post-tensioned prestressed composite uplift pile - Google Patents
Post-tensioned prestressed composite uplift pile Download PDFInfo
- Publication number
- CN202194132U CN202194132U CN2011202586118U CN201120258611U CN202194132U CN 202194132 U CN202194132 U CN 202194132U CN 2011202586118 U CN2011202586118 U CN 2011202586118U CN 201120258611 U CN201120258611 U CN 201120258611U CN 202194132 U CN202194132 U CN 202194132U
- Authority
- CN
- China
- Prior art keywords
- post
- steel strand
- tensioned prestressing
- strand cable
- pile
- 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 - Lifetime
Links
Images
Abstract
The utility model discloses a post-tensioned prestressed composite uplift pile, which comprises a cement-soil mixing pile, a columnar reinforced concrete core and a bearing platform surface, wherein the columnar reinforced concrete core is arranged in the cement-soil mixing pile, and the bearing platform surface is arranged at the upper end of the pile. The post-tensioned prestressed composite uplift pile is characterized in that post-tensioned prestressed cables are coaxially arranged in the columnar core and arranged surrounding the circumference of the columnar core, each post-tensioned prestressed cable is provided with at least one expansion head and is fixed through a connector after being tensioned, and the post-tensioned prestressed cables and the connectors are positioned in the bearing platform surface. The post-tensioned prestressed composite uplift pile has the advantages that the cement-soil mixing pile and reinforced concrete give full play to composite uplift resistance so that a larger friction surface is formed, the needed concrete pile is small in pile body, and the post-tensioned prestressed composite uplift pile is remarkable in economic benefits.
Description
Technical field
The utility model relates to building field, is specifically related to uplift pile.
Background technology
At present, the prestress pulling resistant stake of having used is 800 of ∮ 500-∮ to be disposed the 4-12 root by the resistance to plucking load do not have bonding steel strand cable, and colligation is on reinforcing cage; The lower end of steel strand cable is not for there being bonding; The bottom adopts the pressure-bearing steel plate to fix, and after concrete strength reaches more than 75%, begins stretch-draw, anchoring after the stretch-draw.
The stake advantage of this structure is: save steel, improve pile body stiffness and crack resistance, but also exist obvious defects, promptly anti-pulling capacity is merely the frictional force of the pile body and the soil body, and needed pile body is longer, waste material, uneconomical.
Summary of the invention
The technical problem that the utility model will solve provides the compound uplift pile of a kind of post-tensioned prestressing, improves building pile foundation anti-floating, resistance to plucking, supporting capacity, simultaneously, practices thrift the steel using amount of pile foundation.
The utility model is realized through following technical scheme:
The compound uplift pile of a kind of post-tensioned prestressing; Comprise cement mixing method, the steel concrete column core in the cement mixing method is arranged at a cushion cap face of upper end; Characteristics are the column in-core post-tensioned prestressing steel strand cables that have been coaxially set; Said post-tensioned prestressing steel strand cable is provided with around column core periphery, fixes through connector after the stretch-draw of post-tensioned prestressing steel strand cable, and said steel strand cable and connector thereof are positioned at the cushion cap face.
The further improvement project of the utility model is to be provided with an enlarged footing on the post-tensioned prestressing 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 be one with
When last, 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 column core bonding (being roughly 1/2nd following positions of column core height).
The utility model compared with prior art has following obvious advantage:
The utility model is to adopt the prestress pulling resistant anchor pile technology; Bond the compound anchoring body of formation each other through cement mixing pile, steel concrete and steel strand cable; The suffered pulling force of anchoring body is diffused into cement-soil through steel concrete and is delivered in the stable soil layer again, and pulling resistant anchor pile is linked to be integral body through prestressed stretch-draw and sole plate.
The utility model has the advantages that: give full play to the compound resistance to plucking advantage of cement mixing pile and steel concrete, form bigger rubbing surface, needed concrete pile body is little, and economic benefit is obvious.
Description of drawings
Fig. 1 is the utility model cross-sectional schematic.
Fig. 2 is Figure 1A-A cross-sectional schematic.
Fig. 3 is the column core reinforcement cage skeleton sketch map among Fig. 1.
The specific embodiment
Like Fig. 1, shown in 2, the utility model comprises cement mixing method 1, and the steel concrete column core 2 in the cement mixing method 1 is arranged at a cushion cap face 3 of upper end.The post-tensioned prestressing steel strand cable 4 that has been coaxially set in the said column core 2, said steel strand cable 4 be around the 2 periphery settings of column core, and be provided with the pre-tensioned prestressing spacing of reinforcement of reinforcement cage skeleton 9 in the column core, and it is connected in reinforcement cage skeleton 9.
Like Fig. 1, shown in 3, 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 like Fig. 1, shown in 3, post-tensioned prestressing steel strand cable 4 tops are provided with sleeve pipe 8, bottom and column core bonding.Remove the 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, fixing through connector 6 after 4 stretch-draw of post-tensioned prestressing steel strand cable, said steel strand cable 4 and connector 6 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: prepare cement mixing pile earlier; Treat to hole after cement mixing pile is accomplished 12-14h; Add reinforcing cage as shown in Figure 1, water pile concrete and the cushion cap face thereof smash, after cement mixing pile and steel concrete pile body reach intensity, steel strand cable 4 is carried out stretch-draw; Behind the tensioning fixation, adopt the hole (steel strand cable upper end and connector are embedded in the cushion cap face) on the expansion concrete pouring cushion cap face.
Claims (7)
1. compound uplift pile of post-tensioned prestressing; Comprise cement mixing method, the steel concrete column core in the cement mixing method is arranged at a cushion cap face of upper end; It is characterized in that: the column in-core post-tensioned prestressing steel strand cable that has been coaxially set; Said post-tensioned prestressing steel strand cable is provided with around column core periphery, fixes through connector after the stretch-draw of post-tensioned prestressing steel strand cable, and said steel strand cable and connector thereof are positioned at the cushion cap face.
2. the compound uplift pile of a kind of post-tensioned prestressing as claimed in claim 1 is characterized in that: be provided with an enlarged footing on the post-tensioned prestressing steel strand cable at least.
3. the compound uplift pile of a kind of post-tensioned prestressing as claimed in claim 2 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 the compound uplift pile of 3 described a kind of post-tensioned prestressings, it is characterized in that: said enlarged footing is nut or extruding anchor or concrete precast element.
5. the compound uplift pile of a kind of post-tensioned prestressing as claimed in claim 4 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 the compound uplift pile of a kind of post-tensioned prestressing, it is characterized in that: post-tensioned prestressing steel strand cable top is provided with sleeve pipe, bottom and column core bonding.
7. according to claim 1 or claim 2 the compound uplift pile of a kind of post-tensioned prestressing is characterized in that: the pre-tensioned prestressing spacing of reinforcement of the reinforcement cage skeleton in post-tensioned prestressing steel strand cable and the column core is provided with, and it is connected in reinforcement cage skeleton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202586118U CN202194132U (en) | 2011-07-21 | 2011-07-21 | Post-tensioned prestressed composite uplift pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202586118U CN202194132U (en) | 2011-07-21 | 2011-07-21 | Post-tensioned prestressed composite uplift pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194132U true CN202194132U (en) | 2012-04-18 |
Family
ID=45949051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202586118U Expired - Lifetime CN202194132U (en) | 2011-07-21 | 2011-07-21 | Post-tensioned prestressed composite uplift pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202194132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015411A (en) * | 2012-12-24 | 2013-04-03 | 从卫民 | Composite compression pile provided with prestress core material |
-
2011
- 2011-07-21 CN CN2011202586118U patent/CN202194132U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015411A (en) * | 2012-12-24 | 2013-04-03 | 从卫民 | Composite compression pile provided with prestress core material |
| CN103015411B (en) * | 2012-12-24 | 2015-05-20 | 从卫民 | Composite compression pile provided with prestress core material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105113389B (en) | Assembled type bridge pier column member with steel-concrete composite structure | |
| CN101298770B (en) | Bottom enlarging prestress conical pipe pile and construction method thereof | |
| CN102363957B (en) | A kind of post-tensioned prestressing composite uplift pile | |
| CN104790424B (en) | The hardened system on generation power foundation of wind power ring basis and reinforcement means thereof | |
| CN104929117B (en) | Construction method of concrete pole body composite anchor rod | |
| CN102345291A (en) | Partially prestressed supporting cantilever pile | |
| CN208533868U (en) | A kind of novel arrangement of reinforcement hollow steel pipe high-strength concrete column | |
| CN102345292B (en) | A kind of composite prestressed uplift pile with enlarged footing | |
| CN203200751U (en) | Prestress anti-floating pile | |
| CN106930436B (en) | Reinforced concrete shear wall with built-in prestressed steel diagonal bracing | |
| CN205224025U (en) | Prestressing force anti -floating pile | |
| CN202194130U (en) | Compound pre-stressed anti-pulling pile with enlarged head | |
| CN202194131U (en) | Partially prestressed cantilever soldier pile | |
| CN206769200U (en) | First wear formula post stretching vertical prestressing cast-in-place concrete rod structure | |
| CN101550703B (en) | Method for designing reinforced concrete foundation or pile cap | |
| CN107100322B (en) | Post stretching vertical prestressing cast-in-place concrete rod structure and construction method | |
| CN202194132U (en) | Post-tensioned prestressed composite uplift pile | |
| CN207998838U (en) | A kind of compound pile pile of resistance to plucking | |
| CN206693220U (en) | Artificial digging pile resistance to plucking structure | |
| CN206769199U (en) | After wear formula post stretching vertical prestressing cast-in-place concrete rod structure | |
| CN202936804U (en) | Prestressed pile based on post-tensioning method | |
| CN201794215U (en) | Pretensioning method prestress reinforced concrete prefabricated beam | |
| CN103015412A (en) | Composite uplift pile provided with prestress core material with variable cross-section | |
| CN202194144U (en) | Ground pit inclined tension pile | |
| CN103184781A (en) | Pre-stress confined concrete member and manufacturing method thereof |
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 |