CN216108462U - Pile head connecting structure of concrete cast-in-place pile chisel - Google Patents
Pile head connecting structure of concrete cast-in-place pile chisel Download PDFInfo
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- CN216108462U CN216108462U CN202121479451.XU CN202121479451U CN216108462U CN 216108462 U CN216108462 U CN 216108462U CN 202121479451 U CN202121479451 U CN 202121479451U CN 216108462 U CN216108462 U CN 216108462U
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Abstract
The application provides a pile head connecting structure of a concrete cast-in-place pile chisel, which comprises a reinforcement cage, a plurality of straight thread sleeves and a plurality of anchoring reinforcements; the upper part of the reinforcement cage is arranged below the bearing platform, the top of a main reinforcement of the reinforcement cage extends into the bearing platform, and concrete is poured around the reinforcement cage; the plurality of anchoring steel bars are respectively in threaded connection with the tops of the corresponding main bars on the steel bar cage through the straight thread sleeves. The connecting structure is installed after the top of the cast-in-place concrete pile is anchored with the reinforcing steel bars, the chiseled pile head floating slurry concrete does not need to peel off the bonding of the main reinforcing steel bar cage and the concrete, and only the horizontal chiseling breaks the floating slurry layer, so that the difficulty of chiseling the pile head is greatly reduced.
Description
Technical Field
The application relates to the field of building construction, in particular to a pile head connecting structure of a concrete cast-in-place pile chisel.
Background
At present, the method for breaking the pile head laitance of the concrete cast-in-place pile is still a manual pneumatic pick breaking method, and because the pile head reinforcement cage has dense main reinforcements and large diameter, and has high bonding strength with the pile body concrete, the labor intensity for breaking the pile head concrete is quite large, and the efficiency is low; and the broken pile head and the steel bar are often damaged and bent by the air pick, so that the appearance quality and the anchoring quality are influenced.
SUMMERY OF THE UTILITY MODEL
An object of this application lies in providing a bored concrete pile chisel pile head connection structure to solve the technical problem of inefficiency, anchor reinforcing bar quality difference in the broken pile head of current artifical pneumatic pick.
The technical scheme of the application is as follows:
a pile head connecting structure of a concrete cast-in-place pile chisel comprises a reinforcement cage, a plurality of straight thread sleeves and a plurality of anchoring reinforcements; the upper part of the reinforcement cage is arranged below the bearing platform, the top of a main reinforcement of the reinforcement cage extends into the bearing platform, and concrete is poured around the reinforcement cage; and the anchoring steel bars are respectively in threaded connection with the tops of the corresponding main bars on the steel reinforcement cage through the straight thread sleeves.
As a technical scheme of this application, first connection screw thread has been cup jointed on the top of the main muscle on the steel reinforcement cage, second connection screw thread has been cup jointed on the bottom of anchor reinforcing bar, straight threaded sleeve's both ends respectively threaded connection in first connection screw thread the second connection screw thread.
As a technical scheme of this application, the anchor reinforcing bar sets up vertically.
As a technical scheme of this application, straight threaded sleeve's attach fitting adopt I level connect respectively with first connection screw thread the second is connected the screw thread and is connected.
As a technical scheme of the application, cast-in-place pile concrete is poured in the lower part of the reinforcement cage.
The beneficial effect of this application:
according to the pile head connecting structure of the cast-in-place concrete pile, the reinforcing steel bars anchored into the bearing platform by the cast-in-place concrete pile are adopted, and the pile head is chiseled and then installed, so that no reinforcing steel bars are bonded in the floating slurry of the pile head, the concrete and the reinforcing steel bars do not need to be peeled off firstly, and the construction difficulty of the pile head is greatly reduced; meanwhile, the later-installed anchoring steel bar is connected with the main bar of the lower steel bar cage by adopting a straight thread sleeve I-level joint, and the connection strength of the later-installed anchoring steel bar meets the specified connection strength; in addition, the waste short reinforcing steel bars can be used for connection, so that the reinforcing steel bars are greatly saved, and the engineering cost is saved; in addition, the connected anchoring reinforcing steel bars are vertical and attractive, and the phenomenon that the anchoring reinforcing steel bars of the traditional pile drilling head are bent by seven and turned by eight is overcome, so that the problem that old concrete is not easy to remove when being bonded on the reinforcing steel bars is thoroughly solved; the anchoring reinforcing bar of back connection can be according to the engineering actual conditions, control anchoring length, can the crooked reinforcing bar even carry out back straight threaded connection again, realize pile head reinforcing bar curved anchor, overcome in the traditional chisel pile head that the anchoring reinforcing bar is short can only adopt the lower welding process's of intensity defect.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural view of a main reinforcement of a reinforcement cage according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a concrete grouting laitance breaking limit provided in an embodiment of the present application;
fig. 3 is a schematic view of a pile head connection structure of a cast-in-place concrete pile provided in an embodiment of the present application;
fig. 4 is a schematic view illustrating connection between an anchoring reinforcement and a main reinforcement of a reinforcement cage according to an embodiment of the present application.
Icon: 1-a reinforcement cage; 2-a straight threaded sleeve; 3-anchoring the steel bar; 4-a cushion cap; 5-concrete; 6-first connecting screw thread; 7-a second connecting screw thread; 8-waterproof rubber protective cap.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "upper" and "lower" are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the utility model is used, and are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation and operation, and thus, should not be construed as limiting the present application.
Further, in the present application, unless expressly stated or limited otherwise, the first feature may be directly contacting the second feature or may be directly contacting the second feature, or the first and second features may be contacted with each other through another feature therebetween, not directly contacting the second feature. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 application can be understood in a specific case by those of ordinary skill in the art.
Example (b):
referring to fig. 1 and fig. 2 to 4, the present application provides a pile head connecting structure for a cast-in-place concrete pile, including a reinforcement cage 1, a plurality of straight threaded sleeves 2, and a plurality of anchoring reinforcements 3; the upper part of the reinforcement cage 1 is arranged below the bearing platform 4, the top of the main reinforcement of the reinforcement cage 1 extends into the bearing platform 4, and concrete 5 is poured around the reinforcement cage; and the anchoring steel bars 3 are respectively in threaded connection with the tops of the corresponding main bars on the steel reinforcement cage 1 through the straight threaded sleeves 2.
Further, in this embodiment, the top of the main reinforcement on the reinforcement cage 1 is sleeved with a first connection screw 6, the bottom of the anchoring reinforcement 3 is sleeved with a second connection screw 7, and two ends of the straight-thread sleeve 2 are respectively in threaded connection with the first connection screw 6 and the second connection screw 7.
It should be noted that, in the present embodiment, the anchoring bar 3 is vertically disposed.
In the present embodiment, the straight-thread sleeve 2 is connected to the first connection screw thread 6 and the second connection screw thread 7 by using a straight-thread sleeve 2I-stage joint, respectively.
In this embodiment, cast-in-place pile concrete is cast in the lower portion of the reinforcement cage 1.
In this embodiment, the main reinforcement top elevation of the reinforcement cage 1 is the designed pile top elevation plus the length of the first connecting screw 6, and the floating slurry on the upper portion of the cast-in-place pile is actually plain concrete. Because the waterproof rubber protective cap 8 is sleeved on the main reinforcement at the top of the reinforcement cage 1 at the beginning, the weak stress position is at the elevation position, the air pick chisels a groove at one circle of the elevation pile, then the steel wedge is used for horizontally chiseling off the plain concrete floating slurry at the upper part, after the plain concrete floating slurry block is cleared, the pile head is slightly leveled, the waterproof rubber protective cap 8 which does not completely expose the pile head is taken out, and after the waterproof rubber protective cap 8 is removed, the straight thread connecting sleeve can be used for connecting the anchoring reinforcement 3 at the section of the bearing platform 4 according to the designed anchoring length.
The concrete construction of the pile head connecting structure of the cast-in-place concrete pile comprises the following steps:
(1) preparation for implementation: designing according to the requirements of a design drawing, wherein the top elevation of the main reinforcement of the reinforcement cage 1 is the top elevation of a designed pile plus the length of the first connecting screw thread 6;
(2) sleeving a first connecting screw thread 6 on the top end of a main rib of the steel reinforcement cage 1, and covering a waterproof rubber protective cap 8;
(3) hoisting the reinforcement cage 1, and accurately controlling the top elevation of the reinforcement cage 1 by using a level gauge, wherein the top elevation of a main reinforcement of the reinforcement cage 1 is the designed pile top elevation plus the length of the first connecting screw thread 6;
(4) pouring cast-in-place pile concrete, and performing super-pouring according to design requirements;
(5) pile drilling: according to the design requirement, a level gauge is used for controlling elevation, and red paint is used for marking; a groove is formed around the red paint mark by adopting an air pick, and the waterproof rubber protective cap 8 is exposed; horizontally separating the upper laitance layer by using a steel wedge, and finishing the plane of the pile head to ensure that the waterproof rubber protective cap 8 at the top of the main reinforcement of the reinforcement cage 1 is completely exposed;
(6) blanking the anchoring steel bar 3 according to a design drawing, and sleeving a second connecting screw thread 7;
(7) removing the waterproof rubber protective cap 8 at the top of the main reinforcement of the reinforcement cage 1, and respectively connecting the anchoring reinforcement 3 with the top of the main reinforcement of the reinforcement cage 1 by using a straight thread sleeve 2;
(8) sampling and inspecting the connecting joint of the straight thread sleeve 2;
(9) and (4) checking and acceptance, wherein the straight thread sleeve 2 connecting joint must reach the I-grade joint grade, namely, the acceptance is qualified.
Therefore, the structure adopts a mode of installing the top of a concrete 5 cast-in-place pile and anchoring the reinforcing steel bars 3 for construction, the chiseled pile head floating concrete 5 does not need to peel off the bonding of the main reinforcement of the reinforcing steel bar cage 1 and the concrete 5, and only needs to horizontally chisel and break the floating slurry layer, so that the difficulty of chiseling the pile head is greatly reduced; the anchoring steel bars 3 are connected at the back, so that the surface of the whole steel bar is free of dirt, the steel bar is straight and attractive, the bonding force between the cast-in-place pile and the concrete 5 of the bearing platform 4 is stronger, and the appearance quality is attractive; in addition, because the anchoring reinforcing steel bars 3 are connected at the back, the anchoring reinforcing steel bars 3 can be bent and processed at will, so that the method is suitable for projects with special anchoring requirements, such as the engineering with a small bearing platform 4 and needing bending anchor. Meanwhile, the steel bars anchored into the bearing platform 4 are generally not long, for example 35d, so that the later-connected anchoring steel bars 3 can be processed by fully utilizing short excess materials, and the short steel bars which are too short and have no utilization value in the engineering are utilized, so that wastes can be recycled, the requirements of energy conservation and environmental protection are met, and the engineering cost is reduced.
In conclusion, in the pile head connecting structure of the cast-in-place concrete pile, the structure that the top of the cast-in-place concrete pile 5 and the reinforcing steel bars 3 are anchored and then installed is adopted, and because no reinforcing steel bars are bonded in the floating slurry of the pile head, the concrete pile 5 and the reinforcing steel bars do not need to be peeled off firstly, so that the construction difficulty of the pile head is greatly reduced; meanwhile, the later-installed anchoring steel bar 3 is connected with the main bar of the lower steel bar cage 1 by adopting an I-grade joint of the straight thread sleeve 2, and the connection strength of the later-installed anchoring steel bar meets the specified connection strength; in addition, the waste short reinforcing steel bars can be used for connection, so that the reinforcing steel bars are greatly saved, and the engineering cost is saved; in addition, the connected anchoring reinforcing steel bars 3 are vertical and beautiful, and the phenomenon that the anchoring reinforcing steel bars 3 of the traditional pile drilling head are bent seven and turned eight is overcome, so that the problem that old concrete 5 bonded on the reinforcing steel bars is difficult to remove is thoroughly solved; the anchoring reinforcing steel bar 3 of back connection can be according to the engineering actual conditions, control anchoring length, can the crooked reinforcing steel bar even carry out back straight threaded connection again, realize pile head reinforcing steel bar curved anchor, overcome traditional chisel in the pile head anchoring reinforcing steel bar 3 short can only adopt the defect of lower welding process of intensity.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (5)
1. A pile head connecting structure of a concrete cast-in-place pile chisel is characterized by comprising a reinforcement cage, a plurality of straight thread sleeves and a plurality of anchoring reinforcements; the upper part of the reinforcement cage is arranged below the bearing platform, the top of a main reinforcement of the reinforcement cage extends into the bearing platform, and concrete is poured around the reinforcement cage; and the anchoring steel bars are respectively in threaded connection with the tops of the corresponding main bars on the steel reinforcement cage through the straight thread sleeves.
2. The pile driver connecting structure of a cast-in-place concrete pile according to claim 1, wherein a first connecting screw thread is sleeved on a top of a main reinforcement on the reinforcement cage, a second connecting screw thread is sleeved on a bottom of the anchor reinforcement, and two ends of the straight-thread sleeve are respectively in threaded connection with the first connecting screw thread and the second connecting screw thread.
3. A pile driver connecting structure of a cast-in-place concrete pile according to claim 1, wherein said anchoring reinforcement is vertically disposed.
4. A pile driver connecting structure according to claim 2, wherein the connecting joint of the straight threaded sleeve is connected to the first connecting screw and the second connecting screw by an I-stage joint.
5. A bored concrete pile chisel pile head connection structure as claimed in claim 1, wherein a bored concrete pile concrete is cast in a lower portion of the reinforcement cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121479451.XU CN216108462U (en) | 2021-07-01 | 2021-07-01 | Pile head connecting structure of concrete cast-in-place pile chisel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121479451.XU CN216108462U (en) | 2021-07-01 | 2021-07-01 | Pile head connecting structure of concrete cast-in-place pile chisel |
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| Publication Number | Publication Date |
|---|---|
| CN216108462U true CN216108462U (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121479451.XU Active CN216108462U (en) | 2021-07-01 | 2021-07-01 | Pile head connecting structure of concrete cast-in-place pile chisel |
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| CN (1) | CN216108462U (en) |
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- 2021-07-01 CN CN202121479451.XU patent/CN216108462U/en active Active
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