A reinforced anchorage structure for pull-out pile heads
By setting positioning ring reinforcement and pile body structure at the pile head, the problem of increased steel and concrete usage in existing construction methods is solved, achieving cost reduction and shortened construction period, and improving the stability of the pull-out pile.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR SCI & IND CORP LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-07-03
AI Technical Summary
The existing anti-tension pile construction method leads to an increase in the local stress thickness of the bottom slab and the anchorage length of the reinforcing bars, which increases the amount of reinforcing bars and concrete used, and increases the construction cost and construction period.
Positioning ring bars are used to adjust the vertical length of the anchoring bars. By connecting positioning ring bars at the bends of the longitudinal bars, it is ensured that the anchoring bars do not deviate. Pile bodies are set in the bottom slab to reduce the thickness of the bottom slab and the length of the reinforcing bars.
It reduced construction costs, shortened the construction period, and improved the stability and construction efficiency of the pull-out piles.
Smart Images
Figure CN224451702U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, specifically to a reinforced anchorage structure for anti-uplift pile heads. Background Technology
[0002] Tension piles in building construction are specially designed to withstand the upward vertical tension at the base of building columns. They primarily resist the upward vertical tension through the friction between the pile and the soil or rock layers, thereby ensuring the stability of the building. They are typically used in areas with high groundwater levels and on tall buildings. Current construction methods for tension piles involve connecting the building's foundation slab to a pile cap at the pile head. This can easily lead to an increase in the local thickness of the foundation slab under stress and the length of the reinforcing steel anchorage. Furthermore, this method requires the placement of reinforcing steel within the pile cap, which increases the amount of steel and concrete used, raising construction costs and extending the construction period. Utility Model Content
[0003] Therefore, the technical problem to be solved by this utility model is to overcome the defects in the existing technology, which is that the existing anti-tension pile construction method connects the building base plate to the anti-tension pile head construction platform, resulting in an increase in the local stress thickness of the base plate and the anchorage length of the reinforcing bars.
[0004] Therefore, this utility model provides a reinforced anchorage structure for pull-out pile heads, comprising:
[0005] Base plate;
[0006] The pile body is set on the base plate;
[0007] The pile body is set inside the pile shaft, and the pile body is provided with positioning ring bars, which are adapted to adjust the vertical length of the anchoring bars.
[0008] Optionally, the pile body includes:
[0009] A support plate is installed inside the pile body;
[0010] Longitudinal reinforcement bars are provided on the support plate and extend along the pile body into the bottom plate;
[0011] Horizontal ribs are spaced apart on the longitudinal ribs and welded to them.
[0012] Optionally, the top of the longitudinal reinforcement is provided with a bend, and the positioning ring reinforcement is connected to the bend position of the bend, which is suitable for determining the vertical length of the anchor reinforcement.
[0013] Optionally, the longitudinal reinforcement is provided with cross reinforcement at the top of the pile body, and the cross reinforcement is adapted to fix the longitudinal reinforcement.
[0014] Optionally, the portion of the longitudinal reinforcement extending beyond the pile body is inclined, forming an open shape.
[0015] Optionally, the pile body further includes:
[0016] Concrete is filled between the support plate, the longitudinal reinforcement, and the transverse reinforcement to form the pile body.
[0017] Optionally, the pile body is further provided with prestressed steel bars, which are suitable for enhancing the structural strength of the pile body.
[0018] The technical solution of this utility model has the following advantages:
[0019] 1. This utility model provides a reinforced anchorage structure for anti-uplift pile heads, including a base plate, a pile body, and a pile frame; the pile body is disposed on the base plate; the pile frame is disposed within the pile frame, and the pile frame is provided with positioning ring bars, which are adapted to adjust the vertical length of the anchorage reinforcement.
[0020] Existing methods for constructing tension piles involve connecting the pile head to the building slab. This can easily lead to an increase in the localized thickness of the slab under stress and the length of the reinforcing steel anchorage. Furthermore, this method requires reinforcing steel reinforcement within the pile cap, increasing the amount of steel and concrete used, thus raising construction costs and extending the construction period. In this invention, by incorporating the positioning ring reinforcement, the anchoring steel reinforcement can be fixedly connected, ensuring that it does not shift due to external forces. Simultaneously, since all tension pile heads are located within the slab, this avoids increasing the slab thickness and the length of the reinforcing steel anchorage, reducing construction costs and shortening the construction period.
[0021] 2. This utility model provides a reinforced anchorage structure for anti-uplift pile heads. The pile body includes longitudinal bars, and the top of each longitudinal bar has a bent portion. A positioning ring bar is connected to the bent position of the bent portion, which is suitable for determining the vertical length of the anchorage bar. In this utility model, by placing the positioning ring bar on the longitudinal bar, the bent positions of the longitudinal bars can be kept at the same height, thereby ensuring that the vertical length of the anchorage bar meets the design requirements.
[0022] 3. This utility model provides a reinforced anchorage structure for tension-resistant pile heads. By setting the positioning ring reinforcement at the bending position of the longitudinal reinforcement, the positioning ring reinforcement can be placed on the punching shear surface between the tension-resistant pile and the base plate, thereby bearing part of the punching shear force and making the tension-resistant pile more stable. Attached Figure Description
[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0025] Figure 2 This is a schematic diagram of the positioning ring reinforcement of this utility model.
[0026] Explanation of reference numerals in the embodiments:
[0027] 1. Base plate; 2. Pile body; 3. Pile structure;
[0028] 21. Prestressed steel bars;
[0029] 31. Positioning ring reinforcement; 32. Support plate; 33. Longitudinal reinforcement; 34. Transverse reinforcement; 35. Cross reinforcement; 36. Concrete;
[0030] 331. Bend. Detailed Implementation
[0031] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0034] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0035] Example
[0036] like Figure 1 and Figure 2 As shown, this embodiment provides a reinforced anchorage structure for pull-out pile heads, including a base plate 1, a pile body 2, and a pile 3; the pile body 2 is disposed on the base plate 1; the pile 3 is disposed within the pile body 2, and the pile 3 is provided with a positioning ring bar 31, which is adapted to adjust the vertical length of the anchorage reinforcement.
[0037] In this embodiment of the utility model, the pile body 2 is first driven vertically into the soil layer, then the pile body 3 is placed on the pile body 2, then the positioning ring reinforcement 31 is welded to the preset position of the pile body 2, and then the pile body 2 and the pile body 3 are connected to the base plate 1 to complete the pull-out pile head strengthening and anchoring process.
[0038] Existing methods for constructing tension piles involve connecting the pile head to the building slab, which can easily lead to an increase in the localized thickness of the slab under stress and the length of the reinforcing steel anchorage. Furthermore, this method requires reinforcing steel reinforcement within the pile cap, increasing the amount of steel and concrete used, thus raising construction costs and extending the construction period. In this invention, by incorporating the positioning ring reinforcement 31, the anchoring steel reinforcement can be fixedly connected, ensuring that it does not shift due to external forces. Simultaneously, since all tension pile heads are located within the slab, the slab thickness and the length of the reinforcing steel anchorage are not increased, thereby reducing construction costs and shortening the construction period.
[0039] Further, the pile body 3 includes a support plate 32, longitudinal reinforcement 33, and transverse reinforcement 34. The support plate 32 is disposed within the pile body 2; the longitudinal reinforcement 33 is disposed on the support plate 32 and extends along the direction of the pile body 3 into the bottom plate 1; the transverse reinforcement 34 is disposed at intervals on the longitudinal reinforcement 33 and is welded to the longitudinal reinforcement 33. In this embodiment of the present invention, multiple longitudinal reinforcement 33 and transverse reinforcement 34 are provided. The longitudinal reinforcement 33 is welded at intervals to the positioning ring reinforcement 31 along the circumferential direction of the positioning ring reinforcement 31. Of course, this embodiment does not limit the number of longitudinal reinforcement 33 and transverse reinforcement 34. Those skilled in the art can change the number of longitudinal reinforcement 33 and transverse reinforcement 34 according to the actual situation, as long as the same technical effect can be achieved.
[0040] Furthermore, such as Figure 2 As shown, the top of the longitudinal reinforcement 33 is provided with a bent portion 331, and the positioning ring reinforcement 31 is connected to the bent position of the bent portion 331, which is suitable for determining the vertical length of the anchor reinforcement. In this utility model, by setting the positioning ring reinforcement 31 on the longitudinal reinforcement 33, the bent positions of the longitudinal reinforcement 33 can be kept at the same height, thereby ensuring that the vertical length of the anchor reinforcement meets the requirements.
[0041] Furthermore, the longitudinal reinforcement 33 is provided with intersecting reinforcement bars 35 at the top of the pile body 2, and the intersecting reinforcement bars 35 are suitable for fixing the longitudinal reinforcement 33. In addition, the portion of the longitudinal reinforcement 33 extending beyond the pile body 2 is inclined, forming an open shape. By placing the positioning ring reinforcement 31 at the bending position of the longitudinal reinforcement 33 and placing the intersecting reinforcement bars 35 near the top of the pile body 2, the positioning ring reinforcement 31 can be positioned on the punching shear surface between the tension pile and the base plate 1, thereby bearing part of the punching shear force and making the tension pile more stable.
[0042] Furthermore, the pile body 3 also includes concrete 36, which is filled between the support plate 32, the longitudinal reinforcement 33, and the transverse reinforcement 34 to form the pile body 3. The support plate 32 is placed inside the pile body 2, and then the longitudinal reinforcement 33 is welded to the support plate 32 in sequence, and then the transverse reinforcement 34 is welded to the longitudinal reinforcement 33 in sequence. Finally, the concrete 36 is filled between the support plate 32, the longitudinal reinforcement 33, and the transverse reinforcement 34 to form the pile body 3.
[0043] Furthermore, the pile body 2 is also provided with prestressed steel bars 21, which are suitable for enhancing the structural strength of the pile body 2.
[0044] The specific construction process of the anti-uplift pile head reinforced anchorage structure provided by this utility model is as follows:
[0045] First, the pile body 2 is driven vertically into the soil. Then, the support plate 32 is welded to the inner wall of the pile body 2. Next, the longitudinal reinforcement 33 is welded to the support plate 32 at intervals. Then, the transverse reinforcement 34 is welded to the longitudinal reinforcement 33. Then, the concrete 36 is filled into the cavity formed by the support plate 32 and the pile body 2. Then, the cross reinforcement 35 is welded to the longitudinal reinforcement 33 near the top of the pile body 2. Then, according to the preset requirements, the positioning ring reinforcement 31 is welded to the bending position of the longitudinal reinforcement 33. Finally, the pile body 2 and the pile 3 are connected to the base plate 1 to complete the reinforcement and anchoring process of the pull-out pile head.
[0046] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A pullout pile head steel reinforcement anchoring structure, characterized by, include: Base plate (1); The pile body (2) is set on the base plate (1); The pile body (3) is set inside the pile body (2), and the pile body (3) is provided with positioning ring bars (31), which are suitable for adjusting the vertical length of the anchoring bars.
2. The uplift pile head steel reinforcement anchoring structure according to claim 1, characterized in that, The pile body (3) includes: A support plate (32) is installed inside the pile body (2); Longitudinal reinforcement (33) is provided on the support plate (32) and extends along the pile body (3) into the bottom plate (1); Horizontal ribs (34) are spaced apart on the longitudinal ribs (33) and welded to the longitudinal ribs (33).
3. The uplift pile head steel reinforcement anchoring structure according to claim 2, characterized in that, The top of the longitudinal reinforcement (33) is provided with a bend (331), and the positioning ring reinforcement (31) is connected to the bend position of the bend (331), which is suitable for determining the vertical length of the anchor reinforcement.
4. The uplift pile head steel reinforcement anchoring structure according to claim 3, characterized in that, The longitudinal reinforcement (33) is provided with cross reinforcement (35) at the top of the pile body (2), and the cross reinforcement (35) is adapted to fix the longitudinal reinforcement (33).
5. The anti-pull-out pile head reinforced anchorage structure according to claim 4, characterized in that, The portion of the longitudinal reinforcement (33) extending beyond the pile body (2) is inclined, forming an open shape.
6. The uplift pile head steel reinforcement anchoring structure according to claim 2, wherein The pile body (3) also includes: Concrete (36) is filled between the support plate (32), the longitudinal reinforcement (33), and the transverse reinforcement (34) to form the pile body (3).
7. The uplift pile head steel reinforcement anchoring structure according to any one of claims 1 to 6, characterized in that, The pile body (2) is also provided with prestressed steel bars (21), which are suitable for enhancing the structural strength of the pile body (2).