CN210238488U - Concrete pile body structure - Google Patents
Concrete pile body structure Download PDFInfo
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- CN210238488U CN210238488U CN201920914027.XU CN201920914027U CN210238488U CN 210238488 U CN210238488 U CN 210238488U CN 201920914027 U CN201920914027 U CN 201920914027U CN 210238488 U CN210238488 U CN 210238488U
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Abstract
The utility model discloses a concrete pile body structure, include: the concrete pile comprises a base and a concrete pile body. The concrete pile comprises a concrete pile body and a reinforcing steel bar, wherein a base is arranged at least one axial end part of the concrete pile body, the concrete pile body comprises concrete and at least two layers of cylindrical supporting cages, the supporting cages extend along the axial direction of the concrete pile body, the structure of the pile body and the structure of the reinforcing steel bar are mutually adaptive, the supporting of the pile body by the reinforcing steel bar along the axial direction is effectively ensured, and the cylindrical supporting cages are sleeved in a stacking manner; the integral stress intensity in the pile body can be effectively guaranteed to be mutually supported through the multiple layers of supporting cages; wherein the outer side wall of at least one pair of adjacent support cages is fixedly connected with the inner side wall of the support cage arranged on the outer side of the support cage. Through the mutual fixed connection of the side wall face of the support cage of adjacent layer to form the face contact between the support cage of adjacent layer, further improve the intensity that supports the cage and set up each other and form pile body structure, reduced the potential safety hazard in the use greatly.
Description
Technical Field
The utility model relates to a building technical field, concretely relates to concrete pile body structure.
Background
Along with the progress of building industrialization in China, the upper load of a building structure is increased, the load form becomes complicated, more bad building sites and large-scale deep foundation pit projects need to be faced, and a pile foundation with higher requirements becomes a suitable solution. The pile body structure is reasonably used as a foundation for construction, so that the settlement deformation of the building or the building body can be effectively controlled, and the method is widely applied to engineering practice.
The Chinese patent discloses a steel pile tip fully prestressed concrete whole root solid square pile, wherein a pile body part is spirally wound with prestressed main reinforcements by stirrups, and the intersections of the stirrups and the main reinforcements are bound and connected; the prestressed main reinforcements are four prestressed main reinforcements distributed at four corners of the pile body to form a square; the inner four-corner prestressed main ribs are also four prestressed main ribs which are evenly distributed on four sides of a square formed by the four-corner prestressed main ribs.
However, in the existing structure of the pile body part, because the four-corner prestressed main ribs and the inner four-corner prestressed main ribs are unreasonably arranged and distributed, the overall structural strength of the pile body is affected, and potential safety hazards are easy to appear in long-term use.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model discloses the technical problem that will solve lies in pile body structure among the prior art because the two of four corners prestressing force owner muscle and interior four corners prestressing force owner muscle sets up to distribute unreasonablely, leads to pile body structure's bulk strength to receive the influence, uses the defect that has the potential safety hazard for a long time.
Therefore, the utility model provides a concrete pile body structure, include:
a substrate;
the concrete pile comprises a concrete pile body, wherein the base is arranged at least at one axial end of the concrete pile body, the concrete pile body comprises concrete and at least two layers of cylindrical supporting cages, the supporting cages extend along the axial direction of the concrete pile body, and the cylindrical supporting cages are sleeved in a stacking mode;
the method is characterized in that:
wherein the outer side wall of at least one pair of adjacent support cages is fixedly connected with the inner side wall of the support cage arranged on the outer side of the support cage.
Preferably, foretell concrete pile body structure, the support cage includes stirrup and a plurality of main muscle, the main muscle is followed concrete pile body axial set up in on the basement, the stirrup spiral encircles the main muscle sets up.
Further preferably, in the concrete pile structure, the support cage includes an outer support cage disposed at an outer side and a plurality of layers of inner support cages sequentially sleeved in the outer support cage in a stacked manner;
the inner wall of the outer support cage is fixedly connected with the outer wall of the inner support cage adjacent to the inner support cage.
Further preferably, in the concrete pile structure, any adjacent first inner support cage and any adjacent second inner support cage sleeved therein include the following fixed connection modes:
the edge of the second inner support cage is fixedly connected with the inner wall of the first inner support cage;
or an outer side wall of the second inner support cage is fixedly connected with an inner wall of the first inner support cage;
or the edge of the second inner supporting cage is fixedly connected with the main rib of the first inner supporting cage.
Further preferably, in the concrete pile structure, the cross section of the outer support cage is rectangular, and the cross section of the inner support cage is polygonal.
Further preferably, in the concrete pile structure, the cross sections of the inner support cages from outside to inside are arranged alternately in a hexagon and a rectangle.
Further preferably, in the concrete pile structure described above, the inner support cage includes at least two.
Further preferably, in the concrete pile structure, the hoop pitch of the support cage located at the outer layer is greater than the hoop pitch of the support cage located at the inner layer.
Further preferably, in the concrete pile structure described above, the base includes a conical head and at least one anchor bar provided in the conical head; the conical head is arranged on one side originally away from the support cage, and the end part of the anchor bar extends out of the conical head.
The technical scheme provided by the utility model, following advantage has:
1. the utility model provides a concrete pile body structure, it includes, basement and concrete pile body, be equipped with the basement at least one axial tip of concrete pile body, concrete pile body includes concrete and at least two-layer tube-shape support cage, support the cage and extend along the axial of concrete pile body, the structure and the steel bar structure of pile body adapt to each other, effectively guarantee the reinforcing bar to the support of pile body along its axial direction, because of tube-shape support cage range upon range of cover establishes again, effectively guaranteed the inside bulk stress intensity of pile body can support the cage each other through the multilayer; wherein the outer side wall of at least one pair of adjacent support cages is fixedly connected with the inner side wall of the support cage arranged on the outer side of the support cage. Through the mutual fixed connection of the side wall face of the support cage of adjacent layer to form the face contact between the support cage of adjacent layer, further improve the intensity that supports the cage and set up each other and form pile body structure, reduced the potential safety hazard in the use greatly.
2. The utility model provides a concrete pile body structure, it includes stirrup and a plurality of main muscle to support the cage, main muscle is followed concrete pile body axial set up in the basement, the stirrup spiral encircles main muscle sets up. The main reinforcement provides the assurance of intensity to along pile body axial direction, and encircles the stirrup in the main reinforcement outside then effectively guarantee along the support intensity of radial face, and stirrup spiral winding effectively guarantees to support the whole intensity on its radial face and its axial face of pile body of cage, and the stirrup of spiral wraparound has practiced thrift its quantity simultaneously, and its operating method is convenient, effectively guarantees production quality and production efficiency height.
3. The utility model provides a concrete pile body structure, support the cage in the second that arbitrary adjacent first interior support cage and cover were located in including following fixed connection mode: the edge of the second inner support cage is fixedly connected with the inner wall of the first inner support cage; or an outer side wall of the second inner support cage is fixedly connected with an inner wall of the first inner support cage; or the edge of the second inner supporting cage is fixedly connected with the main rib of the first inner supporting cage. The mutual arrangement mode of the edges, the inner wall surfaces and the main ribs of the adjacent supporting cages ensures the diversification of the mutual fixing modes of the supporting cages, and meanwhile, the possibility is provided for fixing the supporting cages of different types and the adjacent supporting cages.
4. The utility model provides a concrete pile body structure, the transversal rectangle of personally submitting of outer support cage, the transversal polygon of personally submitting of interior support cage. The outer supporting cage is rectangular, so that the outer vertical surface of the rectangular pile body is supported, the polygon of the inner supporting cage ensures that the inner supporting cage and the outer supporting cage form surface contact, the stress strength capable of bearing the pile body is improved, and the overall safety and reliability of the building structure are further ensured. The cross sections of the inner support cages from outside to inside are arranged alternately in a hexagonal shape and a rectangular shape. The mutual surface contact between two adjacent inner and outer support cages is ensured, and the overall strength is further improved.
5. The utility model provides a concrete pile body structure, the basement includes conical head and at least one anchor bar arranged in the conical head; the conical head is arranged on one side originally away from the support cage, and the end part of the anchor bar extends out of the conical head. The setting of conical head makes things convenient for the convenience of its installation when corresponding the position of concrete pile body installation, and the cooperation setting of conical head and anchor bar is to breaking the soil structure of mounted position.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a concrete pile structure provided in example 1;
fig. 2 is a top view of a concrete pile structure provided in example 1;
fig. 3 is a top view of a concrete pile structure provided in example 2;
fig. 4 is a top view of the concrete pile structure provided in example 2;
description of reference numerals:
11-a first inner support cage; 12-a second inner support cage; 13-a third inner support cage;
2-outer support cages;
3-concrete; 4-a substrate;
51-main reinforcement; 511-outer main rib; 512-inner main reinforcement; 52-stirrup; 521-outer stirrups; 522-inner stirrup.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
The present embodiment provides a concrete pile structure, as shown in fig. 1 and 2, including: the concrete pile comprises a base 4 and a pile body poured by concrete 3, wherein the base 4 is arranged at the end parts of the two axial ends of the concrete pile body, the concrete pile body comprises the concrete 3 and two layers of cylindrical supporting cages, the supporting cages extend along the axial direction of the concrete pile body, and the cylindrical supporting cages are sleeved in a stacking mode; wherein, the outer side wall of the adjacent support cage is fixedly connected with the inner side wall of the support cage arranged on the outer side of the adjacent support cage. As in the present embodiment, inner and outer support cages 2 are provided, in particular, the inner support cage is provided with only one side, i.e. the first inner support cage 11.
In the present embodiment, as shown in fig. 2, the cross section of the outer support cage 2 is rectangular, and the cross section of the first inner support cage 11 is polygonal, for example, in the present embodiment, the first inner support cage 11 is regular hexagon, and there are two first inner support cages 11. Taking as an example that one of the first inner support cages 11 is connected to the outer support cage 2: as shown in fig. 2, the left edge of the first inner support cage 11 on the left side is fixedly connected to the inner wall surface of the outer support cage 2, and the outer side walls above and below the first inner support cage 11 are fixedly connected to the inner wall of the outer support cage 2.
As shown in fig. 1, the support cage includes a stirrup 52 and a main reinforcement 51, the main reinforcement 51 is disposed on the base 4 along the axial direction of the concrete 3 pile body, and the stirrup 52 is disposed spirally around the main reinforcement 51. For example, in the present embodiment, four outer main ribs 511 of the outer support cage 2 are provided, and six inner main ribs 512 of the first inner support cage 11 are provided.
The main ribs 51 adopted in the present embodiment are: the strength of the steel bar for the 3 prestressed concrete piles is ensured to be more than 1420N per square millimeter. The stirrup 52 is formed by mechanically roll-welding the outer side of the main reinforcement 51, the spiral winding-connected stirrup 52 saves the using amount of the stirrup, the operation method is convenient and fast, and the production quality and the production efficiency are effectively ensured to be high. For example, a sliding welder can be used to weld the main rib 51 and the stirrup 52 to each other, so as to ensure that the strength loss of the welding point is less than 5%.
In this embodiment, the stirrups 52 located adjacent the support cage are oppositely spiraled. According to the structural strength requirement of the pile body, the pitch of the inner stirrups 522 on the first inner support cage 11 is 2 times, 3 times, 5 times and the like of the pitch of the outer stirrups 521 on the outer support cage 2, so that the distribution density of the stirrups 52 in the axial direction of the pile body is ensured. The pitch of the outer stirrup 521 of the support cage on the outer layer is ensured to be larger than the pitch of the inner stirrup 522 of the support cage on the inner layer.
Of course, in other alternative embodiments, the spiral direction of the inner stirrup 522 of the inner support cage may also be the same as the spiral direction of the outer stirrup 521 of the outer support cage 2, and of course, the pitch of the inner stirrup 522 of the inner support cage may also be the same as the pitch of the outer stirrup 521 of the outer support cage 2, as long as the inner and outer support cages 2 are welded at the corresponding positions.
In this embodiment, the base 4 disposed at the bottom includes a conical head and anchor bars disposed in the conical head; the conical head is arranged on one side away from the support cage, and the end part of the anchor bar extends out of the conical head. The side pile tip anchor bar is formed by bending the main bar 51 on the support cage at one time by using a hydraulic mechanism. The steel bars in the conical heads are guaranteed to form a conical shape, and after concrete 3 is poured on the outer sides of the conical heads, the alignment accuracy of the installation of the pile body structure is achieved. The setting of above-mentioned conical head makes things convenient for the convenience of its installation when corresponding the position of concrete pile body installation, and the cooperation setting of conical head and anchor bar is to breaking the soil structure of mounted position.
The manufacturing method of the concrete 3-pile structure in the embodiment comprises the following steps:
firstly, sequentially manufacturing a first inner supporting cage 11 and an outer supporting cage 2, sleeving the first inner supporting cage 11 in the outer supporting cage 2, mutually and fixedly combining the first inner supporting cage 11 and the outer supporting cage 2 through a rolling welding machine, and placing and assembling the combined supporting cage at the end part of one side;
then, coating a separant on the surface of the inner side of the rectangular mould, wherein the separant can be a water-based release agent, then installing the combined supporting cage on a tensioning device on the mould, performing pretensioning on the supporting cage according to the requirement of the tensile grade required by a specific product, locking and anchoring after the requirement is met, and installing a conical head at the end part;
then, preparing concrete 3, and pouring the concrete 3 into the mould; placing the mould and the concrete 3 in the mould on a vibrating table for vibrating and tamping;
finally, the whole pile body is obtained after maintenance. The maintenance can adopt natural maintenance or steam maintenance; when the strength of the concrete 3 reaches 70% of the standard strength, the redundant main reinforcement 51 is released and cut off, and the pile end and pile tip prestressed main reinforcement 51 is cut off and then is smeared by high-grade cement mortar to obtain a finished solid square pile.
According to the concrete pile body structure provided by the embodiment, the support cage extends along the axial direction of the concrete pile body, the structure of the pile body is adapted to the structure of the reinforcing steel bars, the support of the reinforcing steel bars to the pile body along the axial direction of the pile body is effectively ensured, and the cylindrical support cages are sleeved in a stacking manner, so that the integral stress strength in the pile body is effectively ensured to be supported by multiple layers of support cages; in addition, through the mutual fixed connection of the side wall face of the support cage of adjacent layer to form the face contact between the support cage of adjacent layer, further improve the intensity that the support cage set up each other and form pile body structure, reduced the potential safety hazard in the use greatly.
The shape of the first inner support cage 11 may also be a regular hexagon, but in order to ensure that the outer wall surface of the first inner support cage 11 is welded to the inner wall surface of the outer support cage 2, it is ensured that the two wall surfaces at the welding position are arranged in parallel to the inner wall surface of the outer support cage 2.
Of course, all the inner support cages may be quadrilateral, pentagonal, heptagonal, etc., so as to ensure that two sides are relatively parallel, and during welding, the outer wall surfaces of the two parallel sides and the inner wall surface of the outer support cage 2 are welded to each other.
Example 2
This embodiment provides a concrete pile structure, which is different from the concrete pile structure provided in embodiment 1 in that only two layers of the first inner support cage 11 and the outer support cage 2 are provided in embodiment 1, and the inner support cage in this embodiment is provided with two layers as shown in fig. 3, three layers as shown in fig. 4, or four layers of inner support cages from the inside to the outside. The cross sections of the inner support cages from outside to inside are arranged alternately in a hexagon shape and a rectangular shape. In this embodiment 2, as shown in fig. 3, the inner support cage includes a first inner support cage 11 and a second inner support cage 12, a cross section of the first inner support cage 11 is a regular hexagon and a cross section of the second inner support cage 12 is a rectangle, and the second inner support cage 12 is sleeved on an inner side of the first inner support cage 11; in this embodiment, the edge of the second inner support cage 12 and the main rib 51 of the first inner support cage 11 are welded and fixed to each other.
Of course, the first inner support cage 11 may also be provided in four or five, etc., to accommodate the size of the rectangular outer support cages 2 of different structural sizes.
As shown for example in fig. 4, the inner support cages include a first inner support cage 11, a second inner support cage 12, and a third inner support cage 13; the third inner support cage 13 is in a regular hexagon shape, and the third inner support cage 13 is sleeved in the second inner support cage 12.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (9)
1. A concrete pile structure, comprising:
a substrate;
the concrete pile comprises a concrete pile body, wherein the base is arranged at least at one axial end of the concrete pile body, the concrete pile body comprises concrete and at least two layers of cylindrical supporting cages, the supporting cages extend along the axial direction of the concrete pile body, and the cylindrical supporting cages are sleeved in a stacking mode;
the method is characterized in that:
wherein the outer side wall of at least one pair of adjacent support cages is fixedly connected with the inner side wall of the support cage arranged on the outer side of the support cage.
2. The concrete pile structure of claim 1, wherein said support cage includes a stirrup and a plurality of main bars, said main bars being disposed on said base axially along said concrete pile body, said stirrup being disposed helically around said main bars.
3. The concrete pile structure according to claim 1 or 2, wherein the support cage comprises an outer support cage arranged at the outer side and a plurality of layers of inner support cages sequentially sleeved in the outer support cage in a stacking manner;
the inner wall of the outer support cage is fixedly connected with the outer wall of the inner support cage adjacent to the inner support cage.
4. The concrete pile structure according to claim 3, wherein any adjacent first inner support cage and any adjacent second inner support cage sleeved therein comprise the following fixed connection modes:
the edge of the second inner support cage is fixedly connected with the inner wall of the first inner support cage;
or an outer side wall of the second inner support cage is fixedly connected with an inner wall of the first inner support cage;
or the edge of the second inner supporting cage is fixedly connected with the main rib of the first inner supporting cage.
5. The concrete pile structure according to claim 3, wherein the cross section of the outer support cage is rectangular and the cross section of the inner support cage is polygonal.
6. A concrete pile structure according to claim 3 or 5, wherein the outer to inner support cages are of hexagonal and rectangular cross-section arranged alternately.
7. The concrete pile structure of claim 3, wherein said inner support cage comprises at least two.
8. A concrete pile structure according to claim 2, wherein the pitch of the stirrups of the support cages at the outer layer is greater than the pitch of the stirrups of the support cages at the inner layer.
9. A concrete pile structure according to claim 1, wherein the base includes a conical head and at least one anchor bar provided in the conical head; the conical head is arranged on one side far away from the supporting cage, and the end part of the anchor bar extends out of the conical head.
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| CN201920914027.XU CN210238488U (en) | 2019-06-17 | 2019-06-17 | Concrete pile body structure |
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| CN201920914027.XU CN210238488U (en) | 2019-06-17 | 2019-06-17 | Concrete pile body structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284495A (en) * | 2019-06-17 | 2019-09-27 | 盐城市双强管桩有限公司 | A kind of concrete pile body structure and its manufacturing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284495A (en) * | 2019-06-17 | 2019-09-27 | 盐城市双强管桩有限公司 | A kind of concrete pile body structure and its manufacturing method |
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