CN202577287U - Prestress hollow square pile - Google Patents
Prestress hollow square pile Download PDFInfo
- Publication number
- CN202577287U CN202577287U CN 201220083544 CN201220083544U CN202577287U CN 202577287 U CN202577287 U CN 202577287U CN 201220083544 CN201220083544 CN 201220083544 CN 201220083544 U CN201220083544 U CN 201220083544U CN 202577287 U CN202577287 U CN 202577287U
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- CN
- China
- Prior art keywords
- pile body
- reinforcing cage
- pile
- main muscle
- end plate
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- Expired - Fee Related
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Abstract
The utility model discloses a prestress hollow square pile, and the square pile comprises a pile body, wherein the cross section of the pile body is of a square shape, and two ends of the pile body are respectively connected with a metal end plate; and the pile body comprises a first steel reinforcement cage and a second steel reinforcement cage, which are concentrically arranged, the first steel reinforcement cage is arranged on the inner side of the second steel reinforcement cage, two ends of the first steel reinforcement cage are respectively and fixedly connected with the metal end plate, the first steel reinforcement cage is arranged in a circular shape, the second steel reinforcement cage is arranged in a square shape, and four corners of the cross section of the pile body are respectively of an arc angle. The prestress hollow square pile is simple in structure, high in strength and capable of bearing great vibration and impact load.
Description
Technical field
The utility model relates to a kind of basic piling in the building field foundation pile engineering, particularly a kind of pre-stress hollow square pile.
Background technology
Steel concrete is one of current topmost constructional materials, and in the foundation pile engineering of building field, Prefabricated Reinforced Concrete Square Pile also is one of main stake of using, but is mostly single basket structure in the pile body of existing Prefabricated Reinforced Concrete Square Pile.Owing to be single basket structure, the bearing capacity of single pile is restricted; The anti-bending strength of single cage concrete is poor, and especially the shearing resistance of pile body, tensile property are poor, bury potential safety hazard can for the basis of building.
The utility model content
The technical problem that the utility model will solve provides the high pre-stress hollow square pile of a kind of intensity.
For achieving the above object, the technical scheme of the utility model is following:
A kind of pre-stress hollow square pile, said side's stake comprises that pile body, the cross section of said pile body are square, said pile body two ends respectively are connected with a metal end plate; Said pile body comprises first reinforcing cage and second reinforcing cage of arranged concentric; It is inboard that said first reinforcing cage is positioned at said second reinforcing cage; The said first reinforcing cage two ends are fixedly connected with said metal end plate respectively; The rounded layout of said first reinforcing cage, said second reinforcing cage layout that is square, four angles of said pile body cross section are arc chord angle.
Preferably, said first reinforcing cage comprises the said pile body in a plurality of edges axially extended first main muscle and first stirrup, and said first stirrup is welded on the said first main muscle in the shape of a spiral; Said second reinforcing cage comprises the said pile body in a plurality of edges axially extended second main muscle and second stirrup, and the said second stirrup spiral welding is connected on the said second main muscle.
Preferably, the first main muscle of said first reinforcing cage connects the prestressed reinforcement of metal end plate entirely, and the second main muscle of said second reinforcing cage has two at least for connecting the prestressed reinforcement of metal end plate, and other is the non-prestressed second main muscle.
Preferably, said pile body is central for the cross section is circular axial hollow via-hole, the said metal end plate central authorities circular hole identical with the hollow via-hole diameter of said pile body.
Through technique scheme, the beneficial effect of the utility model is:
The hollow concrete that the utility model provided is just stake in advance, through strengthening strength of pile body, when having avoided construction piling again, receives under the situation of bigger vibration or impact load, causes pile body impaired, the crack situation perhaps occurs.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the utility model vertical view;
Fig. 2 is the utility model schematic cross-section.
The numeral corresponding component title represented among the figure with letter:
10, the main muscle of the main muscle of side stake 11, pile body 12, metal end plate 13, first 14, first stirrup 15, second 16, second stirrup 18, circular hole
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
Referring to illustrated in figures 1 and 2, a kind of pre-stress hollow square pile 10 of the utility model, said side's stake 10 comprises pile body 11, and the cross section of said pile body 11 is square, and said pile body 11 two ends respectively are connected with a metal end plate 12; Said pile body 11 comprises first reinforcing cage (not marking among the figure) and second reinforcing cage (not marking among the figure) of arranged concentric; It is inboard that said first reinforcing cage is positioned at said second reinforcing cage; The said first reinforcing cage two ends are fixedly connected with said metal end plate 12 respectively; The rounded layout of said first reinforcing cage, said second reinforcing cage layout that is square.
On the metal end plate 12 that the utility model first reinforcing cage is fixedly connected, it makes pre-stress hollow square pile can possess better impact resistance and much little pile crown breakage rate; Obtain bigger welding girth simultaneously,, reduced said pre-stress hollow square pile greatly and joint sealing-off or offset phenomena in construction, have occurred, make the pile sinking quality more excellent so fully guaranteed every effective weld strength that saves between the stake of pile extension.
The utility model first reinforcing cage comprises the said pile body 11 axially extended first main muscle 13 in a plurality of edges and first stirrup 14, and said first stirrup 14 is welded on the said first main muscle 13 in the shape of a spiral; Said second reinforcing cage comprises the said pile body 11 axially extended second main muscle 15 in a plurality of edges and second stirrup 16, and 16 spiral weldings of said second stirrup are connected on the said second main muscle 15.
The pile body 11 of the utility model pre-stress hollow square pile can reduce or eliminate the caused tensile stress of load, thereby the tensile stress that receives of said pile body 11 is controlled at more among a small circle, thereby improves the cracking resistance and the rigidity of member.
The first main muscle 13 full prestressed reinforcements that connect metal end plate 12 of the utility model first reinforcing cage, the second main muscle 15 of said second reinforcing cage has two at least for connecting the prestressed reinforcement of metal end plate 12, and other is the non-prestressed second main muscle 15.
The utility model is convenient to mechanization and is welded automatically; Spiral helicine first stirrup 14 can make said first reinforcing cage possess good anti-flexible, torsional property simultaneously; Same, said second stirrup 16 shape in the shape of a spiral is welded on and also can makes said second reinforcing cage possess good anti-flexible, torsional property on the said second main muscle 15; Therefore said first reinforcing cage and said second reinforcing cage also just can reduce the concrete flexure stress that receives of the caused said pile body 11 of load; Thereby the flexure stress that receives of pile body 11 is controlled at more among a small circle; Therefore the appearance in concrete crack be can postpone and the cracking resistance and the rigidity of raising member carried out.
The utility model pile body 11 central authorities are circular axial hollow via-hole for the cross section, the said metal end plate 12 central authorities circular hole 18 identical with the hollow via-hole diameter of said pile body 11.
Four angles of the cross section of the said pile body 11 of the utility model are the circle of stress arc angle; So not only make the good looking appearance of this pre-stress hollow square pile; And avoided too small because of the pile body corner of this pre-stress hollow square pile, make pile body in hoisting process, the steel wire mushroom broken and the generation security incident that drops.
The pre-stress hollow square pile that the utility model provided has avoided too small because of the pile body corner, make pile body in transportation, lifting and installation process by outside destroy, perhaps in hoisting process with the steel wire mushroom the disconnected and generation security incident that drops; This does, through strengthening strength of pile body, has avoided when construction piling, receiving under the situation of bigger vibration or impact load, causes pile body impaired, the situation in crack perhaps occurs.
More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the manual that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (4)
1. a pre-stress hollow square pile is characterized in that, said side's stake comprises that pile body, the cross section of said pile body are square, and said pile body two ends respectively are connected with a metal end plate; Said pile body comprises first reinforcing cage and second reinforcing cage of arranged concentric; It is inboard that said first reinforcing cage is positioned at said second reinforcing cage; The said first reinforcing cage two ends are fixedly connected with said metal end plate respectively; The rounded layout of said first reinforcing cage, said second reinforcing cage layout that is square, four angles of said pile body cross section are arc chord angle.
2. a kind of pre-stress hollow square pile according to claim 1 is characterized in that: said first reinforcing cage comprises the said pile body in a plurality of edges axially extended first main muscle and first stirrup, and said first stirrup is welded on the said first main muscle in the shape of a spiral; Said second reinforcing cage comprises the said pile body in a plurality of edges axially extended second main muscle and second stirrup, and the said second stirrup spiral welding is connected on the said second main muscle.
3. a kind of pre-stress hollow square pile according to claim 2; It is characterized in that: the first main muscle of said first reinforcing cage connects the prestressed reinforcement of metal end plate entirely; The second main muscle of said second reinforcing cage has two at least for connecting the prestressed reinforcement of metal end plate, and other is the non-prestressed second main muscle.
4. a kind of pre-stress hollow square pile according to claim 1 is characterized in that: said pile body is central to be that the cross section is circular axial hollow via-hole, the said metal end plate central authorities circular hole identical with the hollow via-hole diameter of said pile body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220083544 CN202577287U (en) | 2012-03-08 | 2012-03-08 | Prestress hollow square pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220083544 CN202577287U (en) | 2012-03-08 | 2012-03-08 | Prestress hollow square pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202577287U true CN202577287U (en) | 2012-12-05 |
Family
ID=47246716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220083544 Expired - Fee Related CN202577287U (en) | 2012-03-08 | 2012-03-08 | Prestress hollow square pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202577287U (en) |
-
2012
- 2012-03-08 CN CN 201220083544 patent/CN202577287U/en not_active Expired - Fee Related
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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: 20121205 Termination date: 20160308 |