Pile foundation reinforcement cage binding structure

Abstract

The utility model discloses a pile foundation reinforcement cage binding structure, which belongs to the field of pile foundation reinforcement cage frameworks, and is characterized in that a plurality of lateral supporting ribs which are in 90-degree cross connection are fixedly bound in a cylindrical reinforcement cage structure; a supporting structure can be formed after the reinforcement cage structure is placed in the pile foundation pit, the frame amount between the pile foundation pit and the reinforcement cage structure is supplemented, the situation that the reinforcement cage structure inclines due to impact on the reinforcement cage structure during concrete pouring is reduced, and the structural strength of the pile foundation after integral condensation forming is improved.

Description

Technical Field

[0001] The utility model relates to the field of pile foundation steel cage frames, and more specifically, to a pile foundation steel cage binding structure. Background Art

[0002] In modern construction, pile foundations, as a key foundation form, are widely used in the construction of various structures, including buildings, bridges, and docks. The pile foundation cage is a crucial component of the pile foundation. The cage is typically pre-tied and then lowered into the pre-excavated pile foundation pit using a crane. Finally, concrete is poured into the pit, allowing the poured concrete and the pile foundation cage to solidify within the pit, forming the pile foundation structure.

[0003] In order to ensure that the outer periphery of the concrete after the pile foundation solidifies can fully wrap the pile foundation steel cage, the inner wall diameter of the pile foundation pit is generally larger than the outer wall diameter of the pile foundation steel cage. Therefore, when the pile foundation steel cage is placed inside the pile foundation pit, there will be a certain frame on the outer periphery, which will cause impact force on the pile foundation steel cage when the concrete is poured, causing the pile foundation steel cage to tilt inside the pile foundation pit, affecting the bearing capacity and prestress of the pile foundation structure after formation. Therefore, we propose a pile foundation steel cage binding structure to solve the above problems. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In response to the problems existing in the prior art, the purpose of the present utility model is to provide a pile foundation steel cage binding structure, which fixes and binds a number of lateral support bars cross-connected at 90 degrees inside the cylindrical steel cage structure, so that the steel cage structure can form a supporting structure after being placed inside the pile foundation pit, supplement the frame volume between the pile foundation pit and the steel cage structure, reduce the skewness of the steel cage structure caused by the impact of concrete pouring, and improve the structural strength of the pile foundation after one-piece solidification.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the present invention adopts the following technical solutions.

[0008] A pile foundation reinforcement cage binding structure includes a plurality of longitudinal main bars, wherein the plurality of longitudinal main bars are distributed in a ring shape, and the outer sides of the plurality of longitudinal main bars are connected by spiral stirrups, and the connection between the spiral stirrups and the longitudinal main bars is fixed and bound by binding wires, so that the plurality of longitudinal main bars and the spiral stirrups form a cylindrical reinforcement cage structure;

[0009] An exposed structure is provided on the top of the spiral stirrup, and the exposed structure includes a number of exposed main bars, and the exposed main bars are connected by a plurality of U-shaped stirrups. The connection between the U-shaped stirrups and the exposed main bars is fixed and tied by tying wires, and the connection node between the U-shaped stirrups and the exposed main bars is also fixed and tied with the corresponding position of the spiral stirrups by tying wires;

[0010] Several lateral support structures with the same structure are also provided at the bottom of the exposed structure. The lateral support structures include a group of lateral support ribs cross-connected at 90 degrees. A group of the lateral support ribs are fixed and tied at the intersection nodes by tying steel wires, and a group of the lateral support ribs are fixed and tied at the intersection nodes with the longitudinal main ribs and the spiral stirrups by tying steel wires.

[0011] Furthermore, the top of the exposed main reinforcement extends to the outside of the top of the spiral stirrup, the bottom of the exposed main reinforcement extends to the inside of the spiral stirrup, and the top of the exposed main reinforcement is provided with an external thread structure.

[0012] Furthermore, arc sections are provided at both ends of the lateral support reinforcement, and the arc sections extend to the outside of the spiral hoop reinforcement.

[0013] Furthermore, the outer wall diameter of the exposed main reinforcement is greater than the outer wall diameter of the longitudinal main reinforcement, the outer wall diameter of the longitudinal main reinforcement is greater than the outer wall diameter of the spiral hoop reinforcement, and the outer wall diameter of the lateral support reinforcement is equal to the outer wall diameter of the longitudinal main reinforcement.

[0014] Furthermore, the U-shaped stirrup is a U-shaped structure formed by bending the steel bars in one piece, and arc-shaped hooks are provided at both ends of the U-shaped stirrup.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] (1) This solution fixes and binds a number of lateral support bars connected at 90 degrees inside the cylindrical steel cage structure, so that the steel cage structure can form a supporting structure after being placed inside the pile foundation pit, thereby supplementing the frame between the pile foundation pit and the steel cage structure, reducing the deflection of the steel cage structure caused by the impact of concrete pouring, and improving the structural strength of the pile foundation after solidification;

[0018] (2) In this solution, the setting of the arc section can facilitate the two ends of the lateral support reinforcement to slide smoothly into the pile foundation pit, avoiding obstruction and interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 For the utility model Figure 1 A schematic diagram of the structure of the middle part of the area is enlarged;

[0021] Figure 3 This is a schematic diagram of the lateral support rib structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the exposed structure of the utility model.

[0023] Description of the numbers in the figure:

[0024] 1. Longitudinal main reinforcement; 2. Spiral stirrups;

[0025] 3. Exposed structure; 4. Exposed main reinforcement; 5. U-shaped stirrups; 501. Arc hook;

[0026] 6. Lateral support structure; 7. Lateral support ribs; 701. Arc segment. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the specification of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0028] Example 1:

[0029] See also Figures 1-4 A pile foundation steel cage binding structure includes a plurality of longitudinal main bars 1, the plurality of longitudinal main bars 1 are distributed in a ring shape, and the outer sides of the plurality of longitudinal main bars 1 are connected by spiral stirrups 2, and the connection between the spiral stirrups 2 and the longitudinal main bars 1 is fixed and bound by binding wires, and a cylindrical steel cage structure is formed between the plurality of longitudinal main bars 1 and the spiral stirrups 2;

[0030] An exposed structure 3 is provided on the top of the spiral stirrup 2. The exposed structure 3 includes 6 exposed main bars 4, and the exposed main bars 4 are connected by a number of U-shaped stirrups 5. The connection between the U-shaped stirrups 5 and the exposed main bars 4 is fixed and tied by tying wires. The connection nodes between the U-shaped stirrups 5 and the exposed main bars 4 are also fixed and tied with the corresponding positions of the spiral stirrups 2 by tying wires.

[0031] Several lateral support structures 6 with the same structure are also provided at the bottom of the exposed structure 3. The lateral support structure 6 includes a group of lateral support ribs 7 cross-connected at 90 degrees. A group of lateral support ribs 7 are fixed and tied at the intersection nodes by tying steel wires, and a group of lateral support ribs 7 are fixed and tied at the intersection nodes with the longitudinal main reinforcement 1 and the spiral stirrups 2 by tying steel wires.

[0032] The operating principle of this pile foundation reinforcement cage binding structure is:

[0033] First, the pile foundation steel cage is tied as shown in the figure, and then the pile foundation steel cage is placed into the pile foundation pit excavated in advance by using a crane, and the two ends of the lateral support bars 7 of the multiple lateral support structures 6 are supported on the inner wall of the pile foundation pit to achieve the effect of lateral support for the steel cage structure. At the same time, the tops of the exposed main bars 4 of the exposed structure 3 are all exposed outside the pile foundation pit. Then concrete can be poured into the pile foundation pit. After a certain period of time, the concrete can be integrated with the steel cage structure to form a pile foundation structure.

[0034] Example 2:

[0035] In view of the above embodiment 1, for further description, refer to Figure 2 And him 4, the top of the exposed main reinforcement 4 extends to the outside of the top of the spiral stirrup 2, the bottom of the exposed main reinforcement 4 extends to the inside of the spiral stirrup 2, the top of the exposed main reinforcement 4 is provided with an external thread structure, and both ends of the lateral support reinforcement 7 are provided with arc segments 701, and the arc segments 701 extend to the outside of the spiral stirrup 2. The outer wall diameter of the exposed main reinforcement 4 is greater than the outer wall diameter of the longitudinal main reinforcement 1, the outer wall diameter of the longitudinal main reinforcement 1 is greater than the outer wall diameter of the spiral stirrup 2, the outer wall diameter of the lateral support reinforcement 7 is equal to the outer wall diameter of the longitudinal main reinforcement 1, and the U-shaped stirrup 5 is a U-shaped structure formed by bending the steel bars as a whole, and both ends of the U-shaped stirrup 5 are provided with arc hooks 501.

[0036] By setting the lateral support ribs 7, the steel cage structure can be supported inside the pile foundation pit, so that it can remain upright inside the pile foundation pit, reducing the bending deformation caused by the impact of concrete dumping on the steel cage structure. The setting of the arc section 701 can facilitate the two ends of the lateral support ribs 7 to slide smoothly down into the pile foundation pit, avoiding obstruction and interference. The setting of the U-shaped stirrups 5 can improve the structural strength of the exposed structure 3 binding.

[0037] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A pile foundation reinforcement cage binding structure, comprising a plurality of longitudinal main reinforcements (1), characterized in that: The plurality of longitudinal main bars (1) are distributed in a ring shape, and the outer sides of the plurality of longitudinal main bars (1) are connected to each other by spiral stirrups (2), and the connection between the spiral stirrups (2) and the longitudinal main bars (1) is fixed and tied by tying steel wires, so that a cylindrical steel cage structure is formed between the plurality of longitudinal main bars (1) and the spiral stirrups (2); An exposed structure (3) is provided on the top of the spiral stirrup (2), and the exposed structure (3) includes 6 exposed main bars (4), and the exposed main bars (4) are connected to each other by a plurality of U-shaped stirrups (5), and the connection between the U-shaped stirrups (5) and the exposed main bars (4) is fixed and tied by tying steel wires, and the connection node between the U-shaped stirrups (5) and the exposed main bars (4) is also fixed and tied to the corresponding position of the spiral stirrup (2) by tying steel wires; The exposed structure (3) is further provided with a plurality of lateral support structures (6) of the same structure at the bottom. The lateral support structures (6) include a group of lateral support ribs (7) connected in a 90-degree cross-connection. A group of the lateral support ribs (7) are fixed and tied at the intersection nodes by tying steel wires, and a group of the lateral support ribs (7) are fixed and tied at the intersection nodes with the longitudinal main ribs (1) and the spiral stirrups (2).

2. A pile foundation reinforcement cage binding structure according to claim 1, characterized in that: The top of the exposed main reinforcement (4) extends to the outside of the top of the spiral stirrup (2), and the bottom of the exposed main reinforcement (4) extends to the inside of the spiral stirrup (2). The top of the exposed main reinforcement (4) is provided with an external thread structure.

3. The pile foundation reinforcement cage binding structure according to claim 1, characterized in that: Both ends of the lateral support rib (7) are provided with arc sections (701), and the arc sections (701) extend to the outside of the spiral hoop reinforcement (2).

4. The pile foundation reinforcement cage binding structure according to claim 1, characterized in that: The outer wall diameter of the exposed main reinforcement (4) is greater than the outer wall diameter of the longitudinal main reinforcement (1), the outer wall diameter of the longitudinal main reinforcement (1) is greater than the outer wall diameter of the spiral hoop reinforcement (2), and the outer wall diameter of the lateral support reinforcement (7) is equal to the outer wall diameter of the longitudinal main reinforcement (1).

5. The pile foundation reinforcement cage binding structure according to claim 1, characterized in that: The U-shaped stirrup (5) is a U-shaped structure formed by bending a steel bar in one piece, and arc-shaped hooks (501) are provided at both ends of the U-shaped stirrup (5).

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