CN212129120U - Tubular pile with cross auxiliary steel bar - Google Patents
Tubular pile with cross auxiliary steel bar Download PDFInfo
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- CN212129120U CN212129120U CN202020634517.7U CN202020634517U CN212129120U CN 212129120 U CN212129120 U CN 212129120U CN 202020634517 U CN202020634517 U CN 202020634517U CN 212129120 U CN212129120 U CN 212129120U
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Abstract
The utility model discloses a tubular pile with cross auxiliary reinforcement belongs to the construction field. The pile comprises a pile body and auxiliary steel bars, wherein four vertical steel bars are arranged in the pile body at equal intervals along the circumferential direction of the central axis of the pile body, and the auxiliary steel bars comprise two transverse steel bars which are arranged in a crossed manner and connected; the vertical reinforcing steel bars are provided with through holes at the same height, and the end parts of the transverse reinforcing steel bars penetrate through the through holes in the vertical reinforcing steel bars to be fixedly connected with the vertical reinforcing steel bars. The utility model discloses a stable in structure, the atress of each structure is balanced, can reduce the probability that the pile head takes place to burst effectively, improves the construction progress.
Description
Technical Field
The utility model belongs to the building construction field, more specifically say, relate to a prestressed pipe pile.
Background
At present, pile foundation design and theoretical methods mainly based on cast-in-situ bored piles are mainly adopted under conventional geological conditions, but the method is not suitable for special geological conditions such as part of Yangtze river. From the aspect of analysis, the cast-in-situ bored pile used under the geology has low work efficiency, and due to the use of the slurry retaining wall, the pollution is large, a large amount of slurry garbage can be generated, the environment is polluted, and the requirement of green and environment-friendly engineering projects cannot be met.
The prestressed concrete pipe pile is widely applied in the field of civil engineering, and plays an important role in the fields of buildings, roads, bridges and the like. The prestressed pipe pile is economical and efficient, and has small influence on the environment. Therefore, the conclusion shows that the prestressed pipe pile is a reliable pile foundation form, and particularly under the special geological conditions, the prestressed pipe pile has extremely high use value. However, when the traditional prestressed pipe pile is constructed under the geological condition, the pile head often bursts, and the construction progress is seriously influenced.
For example, the Chinese patent application number is: CN201710232562.2, published date: patent literature of 2018, 10, 23 and discloses a novel prestressed pipe pile, which comprises a prestressed pipe pile with a gradually-changed diameter, wherein the pile tip of the pipe pile is in a semi-spherical shape, and at least four convex belts are uniformly distributed on the surface of a pipe pile body along the axial direction of the pipe pile body; the outer diameter of the tubular pile is gradually reduced from the upper end to the lower end of the tubular pile; the convex belt is in a right-angled triangle shape, and the longest side of the triangular convex belt is tightly attached to the surface of the outer wall of the tubular pile; the tip of tubular pile body lower part still can be conical, cross, pyramid. The prestressed pipe pile adopts a structure with gradually changed diameter, the balance is better, but the stress stability is not very high, so that the strength of the whole structure is not high, and particularly, when the prestressed pipe pile is used under special geological conditions such as Yangtze river sections, the situation of pile head bursting is likely to occur.
Also, for example, the Chinese patent application number is: CN201610710891.9, published date: 2016 patent document 11 month 9 days discloses a stress tube stake in advance, and stress tube stake in advance includes the pile body, connects at the tubular pile joint of pile body lower extreme and connects at the tubular pile stake point of tubular pile joint lower extreme, the lower extreme that the tubular pile connects is connected with a plurality of deflectors, and is a plurality of the deflector encircles tubular pile stake point periphery is adjacent arranges. Compared with the prior art, the prestressed pipe pile provided by the invention has the advantages that the lower end of the pipe pile joint is provided with the plurality of guide plates, and the plurality of guide plates surround the periphery of the pile tip of the pipe pile, so that the guide plates can play a better guiding role in the pile forming process of the prestressed pipe pile, and the phenomenon of hole inclination is avoided. However, the tubular pile of the scheme is mainly designed correspondingly for the lower structure of the tubular pile, so that the phenomenon of pile breakage is prevented. The method is not suitable for engineering construction under special geological conditions such as Yangtze river zones and the like mentioned in the above, and the pile head is easy to burst.
Disclosure of Invention
1. Problems to be solved
The structure to current prestressing force tubular pile is not firm, takes place the problem of pile head phenomenon of bursting easily under special geological conditions, the utility model provides a tubular pile with cross auxiliary reinforcement, its stable in structure, the atress of each structure is balanced, can reduce the probability that the pile head takes place to burst effectively, improves the construction progress.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
A tubular pile with cross-shaped auxiliary reinforcing steel bars comprises a pile body and the auxiliary reinforcing steel bars, wherein four vertical reinforcing steel bars are arranged in the pile body at equal intervals along the circumferential direction of the central axis of the pile body, and the auxiliary reinforcing steel bars comprise two transverse reinforcing steel bars which are arranged in a crossed manner and connected; the vertical reinforcing steel bars are provided with through holes at the same height, and the end parts of the transverse reinforcing steel bars penetrate through the through holes in the vertical reinforcing steel bars to be fixedly connected with the vertical reinforcing steel bars.
As a further improvement of the technical scheme, the steel plate is also included; the steel plate is attached to the outer side surface of the pile body, and is provided with a through hole; the end part of the transverse steel bar extends out of the pile body and penetrates through the through hole of the steel plate, and external threads are arranged on the outer side of the extending part of the transverse steel bar.
As a further improvement of the technical scheme, a protective layer is arranged between the outer side wall of the pile body and the steel plate and fixedly connected with the steel plate, and through holes are formed in the positions, which are in contact with the through holes of the steel plate, of the protective layer.
As a further improvement of the technical scheme, the protective layer is made of steel fiber concrete.
As a further improvement of the technical scheme, the inner side surface of the pile body is covered with a waterproof layer.
As a further improvement of the technical scheme, the waterproof layer adopts cement mortar as a material.
As a further improvement of the technical scheme, a layer of hoop is arranged on the upper part of the outer side surface of the pile body along the circumferential direction of the pile body.
As a further improvement of the technical scheme, a layer of hoop is arranged at the lower part of the outer side surface of the pile body along the circumferential direction of the pile body.
As a further improvement of the technical scheme, the auxiliary reinforcing steel bars are provided with a plurality of layers which are arranged at equal intervals along the length direction of the vertical reinforcing steel bars.
3. Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model relates to a tubular pile with cross auxiliary reinforcement, through set up four vertical reinforcement along the circumference of its central axis equidistant in the pile body inside, and set up the cross auxiliary reinforcement who is connected with four vertical reinforcement respectively at the same height between four vertical reinforcement, auxiliary reinforcement and vertical reinforcement are retrained each other, make the overall structure stress of pile body even, strengthened the intensity of pile body structure greatly, improve the resistant power of beating of tubular pile, and the quantity of vertical reinforcement and horizontal reinforcement all adopts the minimizing quantity that can satisfy high strength pile body structure, guarantee the preparation degree of difficulty and the preparation cost of tubular pile at lower degree, save the cost, improve preparation efficiency;
(2) the utility model relates to a tubular pile with cross auxiliary reinforcement, be fixed with the one deck steel sheet in the pile body outside, can play the guard action to the pile body, improve the life of pile body, and the steel sheet fixes in the pile body outside through the auxiliary reinforcement fixed connection with the pile body inside, and structural design is ingenious, need not to adopt unnecessary mounting structure, makes things convenient for the dismouting, has improved the efficiency that the steel sheet maintained to change;
(3) the utility model relates to a tubular pile with cross auxiliary reinforcement, be equipped with the protective layer of one deck and steel sheet fixed connection between pile body lateral wall and steel sheet, the protective layer is made by steel fiber concrete, because the protective layer is close with the material of pile body, make the connection of protective layer and pile body comparatively inseparable, and indiscriminate to the steel fiber of distribution can hinder the expansion of concrete inside microfracture and the formation of macroscopic crack effectively, the tensile, bending resistance, shock resistance and fatigue resistance that have improved concrete has been showing, have better ductility, in the process that the tubular pile sinks into the ground, when the protective layer receives the effort of barrier in the soil layer and middle hard intermediate layer, can play the guard action to the pile body, make the pile body non-deformable;
(4) the utility model relates to a tubular pile with cross auxiliary reinforcement, cover on the pile body inside wall and have a waterproof layer made of cement mortar, can prevent groundwater from permeating into the pile body from the inside of the pile body, make the pile body damaged;
(5) the utility model relates to a tubular pile with cross auxiliary reinforcement all is equipped with the cuff in the upper portion and the lower part of pile body, and it can restrict the lateral deformation ability of pile body when pounding to the pile head, prevents that pile body shape from changing.
Drawings
Fig. 1 is a schematic view of the internal and external structures of the tubular pile of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of the exterior of the pile body of the present invention without steel plate and protective layer;
in the figure: 1. a pile body; 2. vertical reinforcing steel bars; 3. transverse reinforcing steel bars; 4. a steel plate; 5. a protective layer; 6. a waterproof layer; 7. a ferrule.
Detailed Description
The invention will be further described with reference to specific embodiments and drawings.
Example 1
As shown in fig. 1 to 3, a tubular pile with cross auxiliary reinforcing bars, which is used in the field of building construction, mainly includes a pile body 1, a supporting structure inside the pile body 1, and a protective structure outside the pile body, and the specific structure and working principle of the tubular pile are described in detail below.
The pile body 1 is a cylindrical structure and is provided with a central through hole penetrating through the upper end surface and the lower end surface of the pile body. The supporting structure inside the pile body 1 comprises vertical steel bars 2 and auxiliary steel bars. Specifically, four vertical steel bars 2 are arranged inside the pile body 1 along the circumferential direction of the central axis of the pile body at equal intervals, namely, the four steel bars 2 are opposite to each other. Four vertical reinforcing bars 1 all are equipped with the through-hole on same height, and the equal horizontal extension of the central axis of every through-hole passes the central axis of pile body 1. The auxiliary reinforcing steel bars are composed of two horizontal reinforcing steel bars 3 which are horizontally arranged, and the two horizontal reinforcing steel bars 3 are crossed and connected to form a cross shape. Four tip of auxiliary reinforcement pass four vertical reinforcement 1 through-holes and vertical reinforcement fixed connection that are located the same height respectively, and the auxiliary reinforcement has the multilayer, and the length direction of following vertical reinforcement 2 is equidistant. Through supplementary reinforcing bar and 2 mutual constraints of vertical reinforcing bar for the overall structure atress of pile body 1 is even, has strengthened the intensity of pile body 1 structure greatly, improves the resistant power of beating of tubular pile, and vertical reinforcing bar 2 and horizontal reinforcing bar 3's quantity all adopt the minimizing quantity that can satisfy high strength pile body structure, has guaranteed that the preparation degree of difficulty and the preparation cost of tubular pile are in lower degree, practices thrift the cost, improves preparation efficiency.
The outer protective structure comprises a steel plate 4, a protective layer 5, a waterproof layer 6 and a cuff 7. The steel plate 4 is fixedly arranged on the outer side surface of the pile body 1, is attached to the pile body 1, is provided with a through hole, is matched with the through hole, the end part of the transverse steel bar 3 extends out of the pile body 1 and penetrates through the through hole of the steel plate 4, and is provided with an external thread on the outer side of the extending part. After the transverse bar 3 passes through the steel plate 4, the nut is screwed into the end of the transverse bar 3 outside the steel plate 4, thereby fixing the steel plate 4. Steel sheet 4 can play the guard action to pile body 1, improves the life of pile body, and steel sheet 4 through with pile body 1 inside auxiliary reinforcement fixed connection and fix in the pile body 1 outside, structural design is ingenious, need not to adopt unnecessary mounting structure, makes things convenient for the dismouting, has improved the efficiency that 1 maintenance of steel sheet was changed.
The protective layer 5 is arranged between the outer side wall of the pile body 1 and the steel plate 4, is made of steel fiber concrete and is fixedly connected with the steel plate 4, and a through hole is formed in the part, which is in contact with the through hole of the steel plate 4, of the protective layer. Because pile body 1 is made for the concrete material, protective layer 5 is close with the material of pile body 1, make protective layer 5 comparatively inseparable with the connection of pile body 1, and indiscriminate to the steel fibre that distributes can hinder the inside little crack of concrete effectively and the formation of macroscopic crack, the tensile, bending resistance, shock resistance and the fatigue resistance ability of concrete have been improved remarkably, have better ductility, the in-process that the tubular pile sinks into the ground, when protective layer 5 receives the barrier in the soil layer and the effort of middle hard intermediate layer, can play the guard action to pile body 1, make pile body 1 non-deformable. Waterproof layer 6 covers on the medial surface of pile body 1, adopts cement mortar as the material, can prevent that groundwater from getting into the pile body from inside infiltration of pile body for the pile body is impaired. The hoop 7 is provided with two sections, is respectively arranged at the upper part and the lower part of the pile body 1, is sleeved outside the pile body 1 along the circumferential direction of the pile body 1, can limit the transverse deformation capacity of the pile body 1 when a pile head is beaten, and can prevent the shape of the pile body 1 from changing.
To sum up, this embodiment a tubular pile with cross auxiliary reinforcement, its stable in structure, the atress of each structure is balanced, can reduce the probability that the pile head takes place to burst effectively, improves the construction progress.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides a tubular pile with cross auxiliary reinforcement, includes pile body (1), be equipped with four vertical reinforcement (2), its characterized in that along the circumference of its central axis equidistant in pile body (1): the steel wire rope also comprises auxiliary steel bars; the auxiliary reinforcing steel bars comprise two transverse reinforcing steel bars (3) which are arranged in a crossed mode and connected; the vertical steel bars (2) are provided with through holes at the same height, and the end parts of the transverse steel bars (3) penetrate through the through holes in the vertical steel bars (2) and are fixedly connected with the vertical steel bars (2).
2. The tubular pile with cross-shaped auxiliary reinforcing steel bars according to claim 1, wherein: also comprises a steel plate (4); the steel plate (4) is attached to the outer side surface of the pile body (1) and is provided with a through hole; the end part of the transverse steel bar (3) extends out of the pile body (1) and penetrates through the through hole of the steel plate (4), and external threads are arranged on the outer side of the extending part of the transverse steel bar.
3. The tubular pile with cross-shaped auxiliary reinforcing steel bars according to claim 2, wherein: a protective layer (5) is arranged between the outer side wall of the pile body (1) and the steel plate (4), the protective layer (5) is fixedly connected with the steel plate (4), and a through hole is formed in the position, which is in contact with the through hole of the steel plate (4), of the protective layer.
4. The tubular pile with cross-shaped auxiliary reinforcing steel bars according to claim 3, wherein: the protective layer (5) is made of steel fiber concrete.
5. The tubular pile with the cross-shaped auxiliary reinforcing steel bars according to any one of claims 1 to 4, wherein: the inner side surface of the pile body (1) is covered with a waterproof layer (6).
6. The tubular pile with cross-shaped auxiliary reinforcing steel bars according to claim 5, wherein: and the waterproof layer (6) adopts cement mortar as a material.
7. The tubular pile with the cross-shaped auxiliary reinforcing steel bars according to any one of claims 1 to 4, wherein: the upper part of the outer side surface of the pile body (1) is provided with a layer of hoop (7) along the circumferential direction.
8. The tubular pile with the cross-shaped auxiliary reinforcing steel bars according to any one of claims 1 to 4, wherein: the lower part of the outer side surface of the pile body (1) is provided with a layer of hoop (7) along the circumferential direction.
9. The tubular pile with the cross-shaped auxiliary reinforcing steel bars according to any one of claims 1 to 4, wherein: the auxiliary reinforcing steel bars are provided with a plurality of layers which are arranged at equal intervals along the length direction of the vertical reinforcing steel bars (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020634517.7U CN212129120U (en) | 2020-04-23 | 2020-04-23 | Tubular pile with cross auxiliary steel bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020634517.7U CN212129120U (en) | 2020-04-23 | 2020-04-23 | Tubular pile with cross auxiliary steel bar |
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| Publication Number | Publication Date |
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| CN212129120U true CN212129120U (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020634517.7U Active CN212129120U (en) | 2020-04-23 | 2020-04-23 | Tubular pile with cross auxiliary steel bar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288116A (en) * | 2022-08-20 | 2022-11-04 | 中建一局集团第五建筑有限公司 | Static pressure pipe pile joint and construction method thereof |
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2020
- 2020-04-23 CN CN202020634517.7U patent/CN212129120U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288116A (en) * | 2022-08-20 | 2022-11-04 | 中建一局集团第五建筑有限公司 | Static pressure pipe pile joint and construction method thereof |
| CN115288116B (en) * | 2022-08-20 | 2023-12-05 | 中建一局集团第五建筑有限公司 | Static pressure pipe pile joint and construction method thereof |
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