CN202440816U - Uplift pile with core provided with high-strength tensile rib - Google Patents
Uplift pile with core provided with high-strength tensile rib Download PDFInfo
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- CN202440816U CN202440816U CN2012200632629U CN201220063262U CN202440816U CN 202440816 U CN202440816 U CN 202440816U CN 2012200632629 U CN2012200632629 U CN 2012200632629U CN 201220063262 U CN201220063262 U CN 201220063262U CN 202440816 U CN202440816 U CN 202440816U
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Abstract
The utility model discloses an uplift pile with a core provided with a high-strength tensile rib. The uplift pile with the core provided with the high-strength tensile rib comprises a pile body, wherein the pile body core is provided with the high-strength tensile rib which penetrates through the axial central line of the pile body. The high-strength tensile rib is a high strength steel rib or a high strength prestress rib or a carbon fiber rib. According to the uplift pile with the core provided with the high-strength tensile rib, the high-strength tensile rib is installed inside the pile, a certain ratio of tensile force is distributed to the pile core through tensile stiffness, inner stress of steel around the pile is reduced, and therefore calculated cracks are made smaller and the requirement of normal service condition can be met easily. Meanwhile, the number of tensile steel ribs nearby can be reduced, so that convenient construction and easy operation can be achieved and construction quality is guaranteed. The high-strength tensile rib can further share a large ratio of vertical tensile force, and therefore the number of tensile steel ribs nearby can be reduced relatively, the tensile force of the pile is relatively evenly distributed on the pile in the length direction and the overall tensile force of the pile can be even and reasonable.
Description
Technical field
The utility model relates to the uplift pile that a kind of core is provided with high-strength tension muscle.
Background technology
With the opposing axial tension be master, the stake of bearing vertically pulling-resistant power is called uplift pile, like anchoring pile, anti-floating stake etc., uplift pile mainly is to lean on the frictional force of pile body and soil layer stressed.Uplift pile is widely used in the anchoring pile basis of first mate's basement anti-floating, towering building resistance to plucking, tidal quay platform resistance to plucking, suspension bridge and cable stayed bridge, the pile foundation of Large Ship Dock base plate and the anchoring pile basis in the dead load test pile etc.
In the higher area of groundwater table, when the superstructure loading can not the balance buoyancy force of underground water, the whole or local effect that will receive upward force of structure.Like the basement structure of underground tank, building, the biochemistry pool of Wastewater Treatment Plant etc. uplift pile must be set.
At present, mostly uplift pile of the prior art is evenly cloth muscle of periphery, causes under vertical tension, and the reinforcing bar internal stress of periphery is bigger.Under the high tensile stress effect, stake is easy to generate the crack in week, and the crack is wayward.Of long duration, underground water can finally can make uplift pile drawn inefficacy to through the reinforcing bar in the crevice corrosion uplift pile, causes the Important Project accident.Uplift pile is positioned at underground, generally can not repair, and difficulty finds alternative means, so its design, construction are all comparatively strict.Uplift pile is in the phreatic environment, and generally in 0.02mm, this just requires uplift pile except satisfying the resistance to plucking force request to Crack Control, also will satisfy the requirement of normal operating condition, and this causes the arrangement of reinforcement of uplift pile too much overstocked.
Summary of the invention
To above-mentioned prior art; The utility model provides a kind of core that the uplift pile of high-strength tension muscle is set; Its core is provided with high strength tension muscle, can share the vertical pulling force of larger proportion, thereby makes the corresponding minimizing of tensile reinforcement around the stake; Making stake, in the long scope of stake, to bear pulling force comparatively even, stake whole stressed more even reasonable.
The utility model is realized through following technical scheme:
A kind of core is provided with the uplift pile of high-strength tension muscle, comprises pile body, and the pile body core is provided with the high-strength tension muscle that runs through the pile body longitudinal center line.
The diameter of said high-strength tension muscle is 5%～50% of a pile body diameter, when the vertical pulling force of uplift pile is big, can get big value, and vertical pulling force hour can get the small value, and makes the tensile stress level of uplift pile be in lower state.
Said high-strength tension muscle is high tensile reinforcement, high-strength prestressed muscle, carbon fibre bar or high-strength compound reinforcing bar.
Said carbon fibre bar comprises reinforcing bar, and the axial direction of reinforcing bar is provided with at least one through hole that runs through reinforcing bar, is provided with carbon fiber bundle in the through hole; Preferably; Said reinforcing bar is provided with a through hole, and this through hole is positioned at the core of steel core, and the diameter of charcoal fiber bundle is 10%～80% of a bar diameter.Perhaps: said reinforcing bar is provided with three through holes, and three through-hole diameters are identical, and is that the center is evenly distributed on reinforcing bar inside with the longitudinal center line of reinforcing bar.
Said pile body periphery is embedded with at least one outer border reinforcing bar, and outer border reinforcing bar is along the pile body axial distribution, and preferred, said pile body periphery is embedded with some outer border reinforcing bars, and outer border reinforcing bar is evenly distributed on the pile body periphery; In addition, outer border reinforcing bar whenever can be provided with one at a distance from 0.2 meter～1.0 meters outward and enclose common stirrup or spiral stirrup, also can adopt carbon cloth parcel pile body.
The high-strength tension muscle of the utility model is anchored in the pile body core, forms high tensile muscle bundle, can share most of uplift resistance, and the reinforcing bar around the pile body distributes the fraction uplift resistance and mainly plays the control crack.
The utility model makes pulling force pass through extensional rigidity and distributes certain ratio to the stake core through at the high-strength tension muscle of stake intermediate configurations, and then the reinforcing bar internal stress around the stake reduces; Thereby the crack that calculates is reduced; Satisfying the requirement of normal operating condition easily (can release through force analysis, because high-strength tension muscle can be shared more vertical pulling force, and not cause the tensile stress of pile body outer ring reinforcing bar excessive; And then can not produce the crack, can control the crack in lower level).Simultaneously, can reduce the quantity of tensile reinforcement on every side, easy construction, operation easily, construction quality is guaranteed.High-strength tension muscle can also be shared the vertical pulling force of larger proportion, thereby makes the corresponding minimizing of tensile reinforcement around the stake, and making stake, in the long scope of stake, to bear pulling force comparatively even, stake whole stressed more even reasonable.
Description of drawings
Fig. 1 is provided with the structural representation of radial cross-section of the uplift pile of high-strength tension muscle for the core of embodiment 1.
Fig. 2 is provided with the structural representation of radial cross-section of the uplift pile of high-strength tension muscle for the core of embodiment 2.
Fig. 3 is provided with the structural representation of radial cross-section of the uplift pile of high-strength tension muscle for the core of embodiment 3.
Wherein, 1, pile body; 2, high strength lacing wire; 3, outer border reinforcing bar; 4, carbon fiber bundle.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
1 one kinds of cores of embodiment are provided with the uplift pile of high-strength tension muscle; Comprise pile body, as shown in Figure 1, the pile body core is provided with the high-strength tension muscle that runs through the pile body longitudinal center line; The diameter of high-strength tension muscle is 30% of a pile body diameter; High-strength tension muscle is a high tensile reinforcement, and the pile body periphery is embedded with some outer border reinforcing bars, and outer border reinforcing bar is evenly distributed on the pile body periphery.
During construction, take temporary fixed support, guarantee the center of high tensile reinforcement in stake.Water smash the concrete that finishes before, when outer border steel bar blanking and colligation, all reserve certain anchorage length at all reinforcing bars on stake top, be anchored in the pile body securely guaranteeing.
Such scheme makes pulling force pass through extensional rigidity and distributes certain ratio to the stake core through at the high-strength tension muscle of stake intermediate configurations, and then the reinforcing bar internal stress around the stake reduces, thereby the crack that calculates is reduced, and satisfies the requirement of normal operating condition easily.Simultaneously, can reduce the quantity of tensile reinforcement on every side, easy construction, operation easily, construction quality is guaranteed.High-strength tension muscle can also be shared the vertical pulling force of larger proportion, thereby makes the corresponding minimizing of tensile reinforcement around the stake, and making stake, in the long scope of stake, to bear pulling force comparatively even, stake whole stressed more even reasonable.Reinforcing bar, pile body periphery are provided with some outer border reinforcing bars, and outer border reinforcing bar is evenly distributed on the pile body periphery, and outer border reinforcing bar is outer whenever to be provided with a circle stirrup at a distance from 0.5 meter.
2 one kinds of cores of embodiment are provided with the uplift pile of high-strength tension muscle, comprise pile body, and are as shown in Figure 2; The pile body core is provided with the high-strength tension muscle that runs through the pile body longitudinal center line; The diameter of high-strength tension muscle is 10% of a pile body diameter, and high-strength tension muscle is a carbon fibre bar, and the pile body periphery is embedded with some outer border reinforcing bars; Outer border reinforcing bar is evenly distributed on the pile body periphery, and outer border reinforcing bar is outer whenever to be provided with a circle stirrup at a distance from 0.2 meter.
Said carbon fibre bar comprises reinforcing bar, and the core of reinforcing bar is provided with a through hole that runs through reinforcing bar, is provided with carbon fiber bundle in the through hole, and the diameter of charcoal fiber bundle is 50% of a bar diameter.
3 one kinds of cores of embodiment are provided with the uplift pile of high-strength tension muscle, comprise pile body, and are as shown in Figure 3; The pile body core is provided with the high-strength tension muscle that runs through the pile body longitudinal center line; The diameter of high-strength tension muscle is 40% of a pile body diameter, and high-strength tension muscle is a carbon fibre bar, and the pile body periphery is embedded with some outer border reinforcing bars; Outer border reinforcing bar is evenly distributed on the pile body periphery, and outer border reinforcing bar is outer whenever to be provided with a circle stirrup at a distance from 1.0 meters.
Said carbon fibre bar comprises reinforcing bar; The core of reinforcing bar is provided with three through holes that run through reinforcing bar, and three through-hole diameters are identical, and is that the center is evenly distributed on reinforcing bar inside with the longitudinal center line of reinforcing bar; Be provided with carbon fiber bundle in the through hole, the diameter of charcoal fiber bundle is 10% of a bar diameter.
The part that above-mentioned not detailed expansion is described is existing known technology in the prior art, repeats no more at this.
Claims (10)
1. a core is provided with the uplift pile of high-strength tension muscle, comprises pile body, and it is characterized in that: said pile body core is provided with the high-strength tension muscle that runs through the pile body longitudinal center line.
2. a kind of core according to claim 1 is provided with the uplift pile of high-strength tension muscle, it is characterized in that: the diameter of said high-strength tension muscle is 5%～50% of a pile body diameter.
3. a kind of core according to claim 1 is provided with the uplift pile of high-strength tension muscle, it is characterized in that: said high-strength tension muscle is high tensile reinforcement, high-strength prestressed muscle or carbon fibre bar.
4. a kind of core according to claim 3 is provided with the uplift pile of high-strength tension muscle, it is characterized in that: said carbon fibre bar comprises reinforcing bar, and the axial direction of reinforcing bar is provided with at least one through hole that runs through reinforcing bar, is provided with carbon fiber bundle in the through hole.
5. a kind of core according to claim 4 is provided with the uplift pile of high-strength tension muscle, it is characterized in that: said reinforcing bar is provided with a through hole, and this through hole is positioned at the core of steel core.
6. a kind of core according to claim 5 is provided with the uplift pile of high-strength tension muscle, it is characterized in that: the diameter of said charcoal fiber bundle is 10%～80% of a bar diameter.
7. a kind of core according to claim 4 is provided with the uplift pile of high-strength tension muscle, it is characterized in that: said reinforcing bar is provided with three through holes.
8. a kind of core according to claim 7 is provided with the uplift pile of high-strength tension muscle, it is characterized in that: said three through-hole diameters are identical, and are that the center is evenly distributed on reinforcing bar inside with the longitudinal center line of reinforcing bar.
9. a kind of core according to claim 1 is provided with the uplift pile of high-strength tension muscle, it is characterized in that: said pile body periphery is embedded with at least one outer border reinforcing bar, and outer border reinforcing bar is along the pile body axial distribution.
10. a kind of core according to claim 9 is provided with the uplift pile of high-strength tension muscle, it is characterized in that: said pile body periphery is embedded with some outer border reinforcing bars, and outer border reinforcing bar is evenly distributed on the pile body periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200632629U CN202440816U (en) | 2012-02-24 | 2012-02-24 | Uplift pile with core provided with high-strength tensile rib |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200632629U CN202440816U (en) | 2012-02-24 | 2012-02-24 | Uplift pile with core provided with high-strength tensile rib |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202440816U true CN202440816U (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200632629U Expired - Fee Related CN202440816U (en) | 2012-02-24 | 2012-02-24 | Uplift pile with core provided with high-strength tensile rib |
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| CN (1) | CN202440816U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561317A (en) * | 2012-02-24 | 2012-07-11 | 山东同圆设计集团有限公司 | Uplift pile with high-strength core tensile bar |
-
2012
- 2012-02-24 CN CN2012200632629U patent/CN202440816U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561317A (en) * | 2012-02-24 | 2012-07-11 | 山东同圆设计集团有限公司 | Uplift pile with high-strength core tensile bar |
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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: 20120919 Termination date: 20170224 |