A connection structure for anchoring steel pipe piles

Abstract

This utility model proposes a connection structure for anchoring steel pipe piles, relating to the construction technology of anchoring steel pipe piles. Specifically, it discloses an anchor body and a cover box structure connected to the steel pipe pile. The anchor body is partially embedded in the cover box structure, which has a sliding seat structure for the vertical movement of the anchor body. The cover box structure wraps around the end of the anchor body and uses an internal limiting structure to achieve mechanical limiting, accommodating the vertical displacement of the anchor body. This design effectively resists foundation settlement deformation, ensuring that even after uneven foundation settlement, the anchor body can still provide stable anchoring force to the steel pipe pile. The anchor body adopts a design of multiple steel structures spliced ​​horizontally, realizing modular assembly; the box structure itself wraps around the end of the anchor body, playing an important role in physical corrosion protection.

Description

Technical Field

[0001] This utility model relates to the technical field of steel pipe pile anchor connection structure, and more specifically, to a connection structure for steel pipe pile anchoring. Background Technology

[0002] The connection structure of steel pipe pile anchors can be applied in steel pipe pile projects requiring anchorage in the construction field. It serves as a connection between the rigid anchor body and the steel pipe pile, providing vertical and rotational freedom while ensuring anchorage stability. To enhance the stability and lateral displacement resistance of the pile foundation structure, an anchoring force is often applied. The anchor body is stabilized by the filling material; after the steel pipe pile deforms under soil pressure, the anchor body generates tension, stabilizing the steel pipe pile structure. Therefore, the performance of the connection structure between the steel pipe pile and the anchor body is crucial, directly affecting the reliability, durability, and adaptability to foundation deformation of the entire anchoring system.

[0003] Currently, the common connection method is to directly weld the anchor body to the outside of the steel pipe pile or fix it by welding with connectors. When the foundation soil settles or displaces (especially in soft soil foundations), traditional rigid welded connections limit the relatively small vertical adjustment capability between the pile and the anchor. When foundation settlement causes a vertical displacement difference between the pile and the anchor point, huge additional stresses (such as bending moments and shear forces) will be generated at the rigid connection. In severe cases, this may lead to weld tearing or connector deformation and failure, loss of anchoring effect, and even endanger the safety of the overall structure. Utility Model Content

[0004] The purpose of this utility model is to provide a connection structure for anchoring steel pipe piles, which addresses the shortcomings of existing technologies and solves the problems mentioned in the background.

[0005] The technical solution of this utility model is implemented as follows:

[0006] This utility model provides a connection structure for anchoring steel pipe piles, including an anchor body and a cover box structure connected to the steel pipe pile. The anchor body is partially embedded in the cover box structure, and the cover box structure is provided with a sliding seat structure for guiding the anchor body to move in the vertical direction.

[0007] In some technical solutions of this utility model, the anchor body includes several steel structures, which are spliced ​​together in a horizontal direction.

[0008] In some technical solutions of this utility model, a reinforcing structure is provided between any two adjacent steel structures to strengthen their connection.

[0009] In some technical solutions of this utility model, the reinforcing structure includes two reinforcing steel plates arranged in pairs, which are respectively installed on both sides of two interlocking steel structures.

[0010] In some technical solutions of this utility model, the cover box structure includes two horizontal steel plates arranged in pairs, and vertical steel plates are provided on both sides of the two horizontal steel plates. A cover plate is installed in the area enclosed by the two horizontal steel plates and the two vertical steel plates.

[0011] In some technical solutions of this utility model, the anchor body is placed at the end of the cover box structure and a connecting steel rod is installed.

[0012] In some technical solutions of this utility model, the slide structure includes two slide plates arranged in pairs; a notch is provided on the side wall of the slide plate opposite to the cover plate, and a rounded corner matching the connecting steel rod is provided in the notch.

[0013] In some technical solutions of this utility model, a reinforcing steel plate is provided at the connection between the connecting steel bar and the anchor body.

[0014] Compared with the prior art, this utility model has at least the following advantages or beneficial effects: by wrapping the end of the anchor body with a cover box structure and using the internal limiting structure to achieve mechanical limiting, the anchor body is guided to adapt to the vertical displacement caused by the settlement displacement of the fill body. This design effectively resists the foundation settlement deformation and ensures that even after uneven settlement of the foundation, the anchor body can still provide a stable anchoring force to the steel pipe pile. The anchor body adopts a design of multiple steel structures spliced ​​in the horizontal direction, realizing modularity. The cover box adopts a box-shaped structure, and the box structure itself wraps the end of the anchor body, which plays an important role in physical corrosion protection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the assembly structure of the anchor body and the steel pipe pile in this utility model.

[0016] Figure 2 This is a schematic diagram of the disassembled structure of the anchor body and the steel pipe pile of this utility model.

[0017] Figure 3 This is a schematic diagram of the installation structure of the sliding plate in this utility model.

[0018] Reference numerals: 1. Anchor body; 2. Reinforcing steel plate; 3. Strengthening steel plate; 4. Connecting steel bar; 5. Steel pipe pile; 6. Horizontal steel plate; 7. Cover plate; 8. Sliding seat plate; 9. Notch; 10. Vertical steel plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0021] Example

[0022] This utility model provides a connection structure for anchoring steel pipe piles, such as... Figures 1-3 As shown, the structure includes an anchor body 1 and a cover box structure connected to the steel pipe pile 5. The anchor body 1 is a steel section, such as an I-beam or a steel structure with other cross-sectional shapes. The anchor body 1 is partially embedded in the cover box structure, which is rectangular in shape. The cover box structure wraps around the end of the anchor body 1, and the vertical constraint is achieved through mechanical limiting. This ensures that the anchor body 1 can stabilize the fill material even after settlement and deformation, thus achieving the corresponding anchoring effect. The cover box structure has a sliding seat structure for guiding the anchor body 1 to move vertically. By partially embedding the anchor body 1 into the cover box structure, the sliding seat structure within the cover box guides the anchor body 1 to adapt to the vertical displacement caused by the settlement of the fill material. The steel pipe pile 5 is welded to the cover box to improve fatigue life, and the sliding seat structure ensures anchoring stability and adapts to foundation settlement and deformation.

[0023] In some technical solutions of this utility model, the anchor body 1 comprises several steel structures, which are sequentially spliced ​​together in a horizontal direction. Modular splicing extends the size of the anchor body 1, meets different load-bearing requirements, facilitates transportation and on-site assembly, and flexibly adapts to the anchoring needs of different project scales.

[0024] In some technical solutions of this utility model, a reinforcing structure is provided between any two adjacent steel structures to strengthen their connection. By installing a reinforcing structure at the joint of adjacent steel sections, the connection node is strengthened, the connection strength at the joint is locally enhanced, cracking failure at the joint is prevented, and the overall bending stiffness and load uniformity are improved.

[0025] In some technical solutions of this utility model, the reinforcing structure includes two reinforcing steel plates 2 arranged in pairs, which are respectively installed on both sides of two interlocking steel structures. The double steel plates clamp together to form a rigid connection node. The reinforcing steel plates 2 are symmetrically welded on both sides of the steel splicing surface to share shear stress and improve the node strength.

[0026] In some technical solutions of this utility model, the cover box structure includes two paired horizontal steel plates 6, with vertical steel plates on both sides of the two horizontal steel plates. A cover plate 7 is installed in the area enclosed by the two horizontal steel plates 6 and the two vertical steel plates. The box structure provides three-dimensional constraints and force transmission paths. Box-shaped cover boxes are formed by welding between the two horizontal steel plates 6 and adjacent vertical steel plates, between the two horizontal steel plates 6 and adjacent cover plates 7, and between the two vertical steel plates and cover plates 7, respectively, to wrap the end of the anchor body 1, thereby achieving the purpose of corrosion prevention. Furthermore, the box-shaped structure has strong torsional resistance and disperses local stress.

[0027] Preferably, the cover box structure is welded to the inner wall of the steel pipe pile 5, and a vertical strip hole adapted to the anchor body 1 is opened on the outer wall of the steel pipe pile 5. The gap between the vertical strip hole and the anchor body 1, as well as the inside of the cover box structure, are filled with asphalt-based sealant.

[0028] In some technical solutions of this utility model, the slide structure includes two slide plates 8 arranged in pairs. The slide plates 8 and the cover plate 7 have notches 9 on their side walls opposite to each other. The notches 9 have rounded corners that match the connecting steel rod 4. The notches 9 also serve as slide grooves.

[0029] In some technical solutions of this utility model, a reinforcing steel plate 3 is provided at the connection between the connecting steel rod 4 and the anchor body 1. The addition of a reinforcing steel plate 3 at the welded joint where the connecting steel rod 4 penetrates the anchor body 1 strengthens the connection between the connecting steel rod 4 and the anchor body 1 against single stress fatigue, prevents weld cracking at the steel splice, and extends the service life of critical nodes.

[0030] Preferably, the end of the anchor body 1 placed inside the cover structure abuts against the cover plate 7.

[0031] Preferably, the connecting steel bar 4 is welded to the anchor body 1 through it.

[0032] In some technical solutions of this utility model, the anchor body 1 is placed at the end of the cover box structure and a connecting steel rod 4 is installed. The connecting steel rod 4 is embedded in the notch 9. The connecting steel rod 4 is embedded in the sliding groove through the notch 9 of the sliding plate 8. The rounded corner guides the positioning of the connecting steel rod 4. The rounded corner reduces the accuracy requirements for installing the connecting steel rod 4, avoids hard collisions, and also disperses the contact stress between the connecting steel rod 4 and the sliding plate 8 to prevent local crushing. The sliding groove is used to guide the vertical movement of the connecting steel rod 4 and forms a "slider-guide rail" type limiting mechanism to control the movement of the anchor body 1 in the vertical direction and adapt to the settlement deformation of the foundation.

[0033] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A connecting structure for a steel pipe pile anchor, characterized by, It includes a tie anchor body (1) and a cover box structure connected to a steel pipe pile (5). The tie anchor body (1) is partially embedded in the cover box structure. The cover box structure is provided with a sliding seat structure for guiding the tie anchor body (1) to move in the vertical direction.

2. A connecting structure for a steel pipe pile (5) anchor pull according to claim 1, characterized in that, The anchor body (1) includes several steel structures, which are spliced ​​together in a horizontal direction.

3. A connecting structure for a steel pipe pile (5) anchor pull according to claim 2, characterized in that, A reinforcing structure is provided between any two adjacent steel structures to strengthen their connection.

4. A connecting structure for a steel pipe pile (5) anchor pull according to claim 3, characterized in that, The reinforcing structure includes two reinforcing steel plates (2) arranged in pairs, which are respectively installed on both sides of two interlocking steel structures.

5. The connection structure for anchoring steel pipe piles (5) according to claim 1, characterized in that, The cover box structure includes two horizontal steel plates (6) arranged in pairs, with vertical steel plates on both sides of the two horizontal steel plates, and a cover plate (7) installed in the area enclosed by the two horizontal steel plates (6) and the two vertical steel plates.

6. A connection structure for a steel pipe pile (5) anchor pull according to claim 5, characterized in that, The anchor body (1) is placed at the end of the cover box structure and a connecting steel rod (4) is installed.

7. A connection structure for a steel pipe pile (5) anchor pull according to claim 6, characterized in that, A reinforcing steel plate (3) is provided at the connection between the connecting steel bar (4) and the anchor body (1).

8. A connecting structure for a steel pipe pile (5) anchor pull according to claim 6, characterized in that, The slide structure includes two slide plates (8) arranged in pairs; the slide plate (8) has a notch (9) on the side wall opposite to the cover plate (7), and the notch (9) has a rounded corner that matches the connecting steel rod (4).

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