CN204590011U - A kind of prestressing force props up hole fender pile - Google Patents
A kind of prestressing force props up hole fender pile Download PDFInfo
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- CN204590011U CN204590011U CN201520252631.2U CN201520252631U CN204590011U CN 204590011 U CN204590011 U CN 204590011U CN 201520252631 U CN201520252631 U CN 201520252631U CN 204590011 U CN204590011 U CN 204590011U
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Abstract
The utility model discloses a kind of prestressing force and prop up hole fender pile; Comprise the pre-stressed anchorage body of soldier pile pile body, recoverable steel bushing and band expanding end fitting; Recoverable steel bushing mainly comprises seamless steel pipe and end steel plate; Pre-stressed anchorage body with expanding end fitting comprises prestressed cable, extension fixture steel plate, steel strand, movable rotation-shaft, prestressed anchor and steel strand hole; Each block extension fixture steel plate two ends is connected with another block extension fixture steel plate by movable rotation-shaft, and four pieces of extension fixture steel plate first places connect to form quadrangle movable device successively, and quadrangle movable device is between end steel plate and prestressed anchor; Prestressed cable is connected with another prestressed anchor through the prestressed cable hole of the upper and lower side of the prestressed anchor on seamless steel pipe top, seamless steel pipe and quadrangle movable device; The utility model has that structure is simple, easy for installation, reasonable stress, recyclable, the feature of saving steel.
Description
Technical field
The utility model relates to a kind of foundation pit supporting pile, particularly relates to a kind of callable foundation pit supporting pile using prestressing technique.
Background technology
Soldier pile campshed enclosure wall is one of structural system commonly used the most in pattern foundation pit supporting structure.Soldier pile is flexural member under soil pressure effect.For ensureing the bend-carrying capacity of pile body and carrying out of restriction crack, often need in pile body tensile region to configure more tensile reinforcement.And on the other hand, building foundation pit supporting structure is only the construction usage of building foundation and basement, belongs to temporary work.
Existing soldier pile is steel concrete soldier pile, and bear moment of flexure comparatively greatly, the tensile reinforcement of configuration is more, and after basement construction completes, these reinforcing bars have not just been used, and cannot reclaim, be great waste.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, and provide a kind of critical piece callable, safer and economic prestressing force props up hole fender pile.
The utility model object is achieved through the following technical solutions:
A kind of prestressing force props up hole fender pile, comprises the pre-stressed anchorage body of soldier pile pile body, recoverable steel bushing and band expanding end fitting;
Described recoverable steel bushing mainly comprises seamless steel pipe and end steel plate; End steel plate is provided with in the bottom of seamless steel pipe;
The pre-stressed anchorage body of described band expanding end fitting comprises prestressed cable, extension fixture steel plate, steel strand, movable rotation-shaft, prestressed anchor and steel strand hole; Each block extension fixture steel plate two ends is connected with another block extension fixture steel plate by movable rotation-shaft, four pieces of extension fixture steel plate first places connect to form quadrangle movable device successively, and the middle part of the junction of two blocks, upper end extension fixture steel plate and lower end two blocks of extension fixture steel plates of quadrangle movable device is all provided with prestressed cable hole; Prestressed anchor has two, a top being arranged on seamless steel pipe, and another is arranged on quadrangle movable device lower end, and quadrangle movable device is between end steel plate and prestressed anchor; Prestressed cable is connected with another prestressed anchor through the prestressed cable hole of the upper and lower side of the prestressed anchor on seamless steel pipe top, seamless steel pipe and quadrangle movable device;
The tensile region of soldier pile pile body is provided with the pre-stressed anchorage body of at least one recoverable steel bushing and at least one band expanding end fitting.
For realizing the utility model object further, preferably, two blocks, the upper end of quadrangle movable device extension fixture steel plate or two blocks, lower end extension fixture steel plate are provided with steel strand hole, steel strand two ends are connected with two blocks of extension fixture steel plates respectively by steel strand hole.
Interleaving agent is smeared at seamless steel pipe external surface and extension fixture steel plate.
The diameter stating seamless steel pipe is not less than 3 times of prestressed cable diameter.
The pre-stressed anchorage body of described recoverable steel bushing and band expanding end fitting is multiple.
Relative to prior art, the utility model tool has the following advantages:
(1) the utility model employs prestressing technique, applies precompression, effectively can save the rigidity that nonprestressed reinforcement improves soldier pile simultaneously, carrying out of control critical eigenvalue to the tensile region of soldier pile.
(2) pre-stressed anchorage body of the utility model seamless steel pipe and band expanding end fitting is all recyclable after basement construction completes, and has good economy.
(3) each block extension fixture steel plate two ends of the utility model are connected with another block extension fixture steel plate by movable rotation-shaft, four pieces of extension fixture steel plate first places connect to form quadrangle movable device successively, the ingenious prestressed anchor through seamless steel top of prestressed cable, the prestressed cable hole of the upper and lower side of seamless steel pipe and quadrangle movable device is connected with another prestressed anchor, realize the enlargement and contraction being controlled quadrangle movable device by prestressed cable, while applying precompression to concrete, also recyclable, design ingenious, practical.
Accompanying drawing explanation
Fig. 1 is the pile body structure schematic diagram that prestressing force props up hole fender pile;
Fig. 2 be Fig. 1 A ?A schematic cross-section;
Fig. 3 is the schematic diagram that prestressing force props up when the expanding end of cheating fender pile is shunk;
Fig. 4 is the schematic diagram that prestressing force props up when the expanding end of cheating fender pile is expanded;
Fig. 5 is the top view of expanding end in Fig. 3, Fig. 4;
Fig. 6 is the upward view of expanding end in Fig. 3, Fig. 4;
Fig. 7 is the structural representation of Fig. 3, Fig. 4 medial end portions steel plate.
Fig. 8 is the lateral view of Fig. 7.
Shown in figure: prestressed cable 1, seamless steel pipe 2, end steel plate 3, extension fixture steel plate 4, steel strand 5, movable rotation-shaft 6, prestressed anchor 7, steel strand hole 8, prestressed cable hole 9, soldier pile pile body 11, prestressing force body 12.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
As figure 1 ?shown in 8, a kind of prestressing force props up hole fender pile, comprises the pre-stressed anchorage body of soldier pile pile body 11, recoverable steel bushing and band expanding end fitting;
Recoverable steel bushing mainly comprises seamless steel pipe 2 and end steel plate 3; End steel plate 3 is provided with in the bottom of seamless steel pipe 2; Preferably smear interleaving agent at seamless steel pipe 2 external surface;
Pre-stressed anchorage body with expanding end fitting comprises prestressed cable 1, extension fixture steel plate 4, steel strand 5, movable rotation-shaft 6, prestressed anchor 7 and steel strand hole 8, each block extension fixture steel plate 4 two ends is connected with another block extension fixture steel plate by movable rotation-shaft, four pieces of extension fixture steel plate first places connect to form quadrangle movable device successively, and the middle part of the junction of two blocks, upper end extension fixture steel plate 4 and lower end two blocks of extension fixture steel plates 4 of quadrangle movable device is all provided with prestressed cable hole 9; Prestressed anchor 7 has two, a top being arranged on seamless steel pipe 2, and another is arranged on quadrangle movable device lower end, and quadrangle movable device is between end steel plate 3 and prestressed anchor 7; Prestressed cable 1 is connected with another prestressed anchor through the prestressed cable hole 9 of the upper and lower side of the prestressed anchor on seamless steel pipe 2 top, seamless steel pipe 2 and quadrangle movable device; Preferably on two blocks, the upper end of quadrangle movable device extension fixture steel plate 4 or two blocks, lower end extension fixture steel plate 4, be provided with steel strand hole 8, steel strand 5 two ends are connected with two blocks of extension fixture steel plates 4 respectively by steel strand hole 8.
The tensile region of soldier pile pile body 11 is provided with the pre-stressed anchorage body of at least one recoverable steel bushing and band expanding end fitting.
The pre-stressed anchorage body of the utility model band expanding end fitting controls quadrangle movable device by prestressed cable 1 and expands and shrink, during stretch-draw prestressing force cable wire 1, quadrangle movable device opens under a stretching force and expands and be anchored in surrounding concrete, thus realizes the effect applying precompression to concrete; The pre-stressed anchorage body of steel concrete soldier pile pile body 11 embedding above-mentioned steel bushing and band expanding end fitting in tensile region.
The quadrangle movable device (enlarged footing, Fig. 3, Fig. 4) of the pre-stressed anchorage body with expanding end fitting is shaping by produce in factory, and on plate, perforate is passed through for movable rotation-shaft and prestressed cable.The schematic diagram of enlarged footing steel plate as shown in Figure 4.
During construction, interleaving agent is smeared at the pre-stressed anchorage body and steel bushing external surface of being with expanding end fitting, after soldier pile pore-forming, the quadrangle movable device of band expanding end fitting, prestressed anchor 7, seamless steel pipe 2, prestressed cable 1 are integrally arranged in soldier pile tension side by designing requirement, and hang together with reinforcing cage in stake holes.Hang after-pouring concrete, treated that pile concrete reaches design age post-stress/1.Pre-stressed anchorage body with expanding end fitting outwards expands under the pulling force effect of prestressed cable, embeds in periphery concrete.After power to be tensioned reaches designing requirement, anchoring prestress rope, so far can realize the effect of the utility model to concrete support stake Shi Hanzhang.
When reclaiming pre-stressed anchorage body and the seamless steel pipe 2 of band expanding end fitting, first need that stretch-draw is carried out to prestressed cable 1 and throw off to make prestressed cable and fixture, then take out fixture, loosen prestressed cable.After loosening prestressed cable, quadrangle movable device (enlarged footing) bounces back under the screen resilience of steel strand and the effect of deadweight therein.Then seamless steel pipe 2 and prestressed cable 1 i.e. recyclable prestressed cable 1, seamless steel pipe 2, prestressed anchor 7 and quadrangle movable device is upwards pulled out successively.
During stretch-draw prestressing force cable wire 1, anchoring body end fitting can expand outwardly, and with the prestressed anchor acting in conjunction being positioned at seamless steel pipe 2 top, applies precompression to steel concrete soldier pile.After basement construction completes, loosen prestressed cable, the pre-stressed anchorage body of band expanding end fitting can reclaim together with seamless steel pipe.Anchoring body be connected with prestressed cable and can by prestressed cable 1 control its expands with shrink, during stretch-draw anchoring body open under a stretching force expand and be tightly stuck in surrounding concrete, thus realize applying to concrete precompression effect; The pre-stressed anchorage body of steel concrete soldier pile pile body embedding above-mentioned steel bushing and band expanding end fitting in tensile region.
The wall thickness of the quantity of the pre-stressed anchorage body with expanding end fitting in the utility model and steel plate thickness and size, steel bushing all needs undertaken designing by Practical Project and should meet relevant code requirement to the prestress value of size and applying.
The wall thickness of seamless steel pipe and diameter are selected with reference to " Seamless Steel Structural Tubes (GB ?T8462 ?2008) " according to engineering is actual, and the diameter of seamless steel pipe is not less than 3 times of prestressed cable diameter.The utility model employs prestressing technique, applies precompression, effectively can save the rigidity that nonprestressed reinforcement improves soldier pile simultaneously, carrying out of control critical eigenvalue to the tensile region of soldier pile.The pre-stressed anchorage body of the utility model seamless steel pipe and band expanding end fitting is all recyclable after basement construction completes, and has good economy.Each block extension fixture steel plate two ends of the utility model are connected with another block extension fixture steel plate by movable rotation-shaft, four pieces of extension fixture steel plate first places connect to form quadrangle movable device successively, the prestressed cable hole of the upper and lower side of the ingenious prestressed anchor through seamless steel top of prestressed cable, seamless steel pipe and quadrangle movable device is connected with another prestressed anchor, realize the enlargement and contraction being controlled quadrangle movable device by prestressed cable, while applying precompression to concrete, also recyclable, design ingenious, practical.
Claims (5)
1. prestressing force props up a hole fender pile, it is characterized in that, comprises the pre-stressed anchorage body of soldier pile pile body, recoverable steel bushing and band expanding end fitting;
Described recoverable steel bushing mainly comprises seamless steel pipe and end steel plate; End steel plate is provided with in the bottom of seamless steel pipe;
The pre-stressed anchorage body of described band expanding end fitting comprises prestressed cable, extension fixture steel plate, steel strand, movable rotation-shaft, prestressed anchor and steel strand hole; Each block extension fixture steel plate two ends is connected with another block extension fixture steel plate by movable rotation-shaft, four pieces of extension fixture steel plate first places connect to form quadrangle movable device successively, and the middle part of the junction of two blocks, upper end extension fixture steel plate and lower end two blocks of extension fixture steel plates of quadrangle movable device is all provided with prestressed cable hole; Prestressed anchor has two, a top being arranged on seamless steel pipe, and another is arranged on quadrangle movable device lower end, and quadrangle movable device is between end steel plate and prestressed anchor; Prestressed cable is connected with another prestressed anchor through the prestressed cable hole of the upper and lower side of the prestressed anchor on seamless steel pipe top, seamless steel pipe and quadrangle movable device;
The tensile region of soldier pile pile body is provided with the pre-stressed anchorage body of at least one recoverable steel bushing and at least one band expanding end fitting.
2. prestressing force according to claim 1 props up hole fender pile, it is characterized in that, two blocks, the upper end of quadrangle movable device extension fixture steel plate or two blocks, lower end extension fixture steel plate are provided with steel strand hole, and steel strand two ends are connected with two blocks of extension fixture steel plates respectively by steel strand hole.
3. prestressing force according to claim 1 props up hole fender pile, it is characterized in that, smears interleaving agent at seamless steel pipe external surface and extension fixture steel plate.
4. prestressing force according to claim 1 props up hole fender pile, it is characterized in that, the diameter of described seamless steel pipe is not less than 3 times of prestressed cable diameter.
5. prestressing force according to claim 1 props up hole fender pile, it is characterized in that, the pre-stressed anchorage body of described recoverable steel bushing and band expanding end fitting is multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520252631.2U CN204590011U (en) | 2015-04-23 | 2015-04-23 | A kind of prestressing force props up hole fender pile |
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| CN201520252631.2U CN204590011U (en) | 2015-04-23 | 2015-04-23 | A kind of prestressing force props up hole fender pile |
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| CN204590011U true CN204590011U (en) | 2015-08-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818716A (en) * | 2015-04-23 | 2015-08-05 | 华南理工大学建筑设计研究院 | Recyclable prestressed pit supporting fender pile |
| CN115075230A (en) * | 2022-06-08 | 2022-09-20 | 北京住总集团有限责任公司 | Pedestal pile construction method and reinforcement cage used in same |
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2015
- 2015-04-23 CN CN201520252631.2U patent/CN204590011U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818716A (en) * | 2015-04-23 | 2015-08-05 | 华南理工大学建筑设计研究院 | Recyclable prestressed pit supporting fender pile |
| CN115075230A (en) * | 2022-06-08 | 2022-09-20 | 北京住总集团有限责任公司 | Pedestal pile construction method and reinforcement cage used in same |
| CN115075230B (en) * | 2022-06-08 | 2024-04-12 | 北京住总集团有限责任公司 | Construction method of pedestal pile and reinforcement cage used in construction method |
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