Tower crane pile foundation arrangement structure

Abstract

The utility model relates to the technical field of pile foundation arrangement, in particular to a tower crane pile foundation arrangement structure which comprises a platform, foundation supporting columns are fixed below the platform and distributed along the four vertex angle positions of the bottom of the platform, auxiliary supporting columns are arranged between every two adjacent foundation supporting columns, and the upper ends of the auxiliary supporting columns are fixed to the lower end of the platform. The auxiliary supporting column is located in the center area of the lower end edge of the platform. According to the scheme, the basic supporting columns, the auxiliary supporting columns and the center column are cooperatively arranged, the basic supporting columns are located at the four corners of the platform to provide core supporting, the auxiliary supporting columns are flexibly increased or decreased according to the span to enhance the local stability, and the center column is matched with the soil layer reinforcing frame to effectively prevent the center of the platform from cracking; the advantages of compression resistance, bending resistance and shear resistance of different section shapes are fully exerted, a three-dimensional supporting layout is formed, and the overall stability and deformation resistance of the tower crane under complex loads are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of pile foundation layout technology, and in particular to a tower crane pile foundation layout structure. Background Technology

[0002] Tower crane pile foundation arrangement refers to the foundation used in building construction to support tower cranes by arranging piles in the ground to ensure the stability and safety of the tower crane. This structure is commonly used in high-rise buildings or large-scale projects to ensure that the tower crane will not tilt or collapse during operation.

[0003] The design and construction of tower crane pile foundation layout structures should fully consider geological conditions, load requirements, and construction conditions to ensure the safety and stability of the tower crane during use. For example, Chinese Patent Publication No. CN222632315U provides a tower crane pile foundation layout structure, which includes a pile cylinder, with a first support member positioned above the pile cylinder. The first support member is a pair, arranged parallel and spaced apart, with the standard frame of the tower crane fixed above the first support member. It also includes a second support member positioned above the first support member. A pair of connecting members are arranged between the first support members, with the connecting members arranged at intervals. This utility model provides a tower crane pile foundation layout structure that is structurally reasonable and easy to operate. Through the combination of support members and connections, it effectively ensures the structural strength of the tower crane pile foundation. Furthermore, the tower crane pile foundation, through assembly, has the advantage of flexible operation. In addition, most components of the tower crane pile foundation can be reused multiple times, which helps control construction costs.

[0004] Currently, when tower cranes are deployed on construction sites, their bases need to be stably installed using pile foundations, similar to buildings. This requires ensuring the stability of the base to prevent loosening and collapse if the crane is directly placed on the soil. The soil structure is also unfavorable for the placement of the tower crane's base. However, since most pile foundation structures consist of a single concrete pile column and platform, if the pile foundation is not reinforced during continuous tower crane erection and operation, it is easy for the pile foundation to be squeezed and tilted, greatly reducing construction safety. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned shortcomings in the existing technology by proposing a tower crane pile foundation arrangement structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a tower crane pile foundation layout structure, including a platform, with foundation supports fixed below the platform. The foundation supports are distributed along the four corners of the bottom of the platform. Auxiliary supports are set between two adjacent foundation supports. The upper end of the auxiliary supports is fixed to the lower end of the platform. The auxiliary supports are set in the central area of ​​the lower edge of the platform. A central column is fixed at the bottom center of the platform. A soil reinforcement frame is fixed to the outside of the central column by a bracket.

[0008] A soil layer anti-detachment rod is fixed to the outward side of the auxiliary support. A conical head is fixed to the end of the soil layer anti-detachment rod away from the auxiliary support. Several barbs are distributed on the surface of the soil layer anti-detachment rod. The soil layer anti-detachment rod is set parallel to the horizontal plane.

[0009] In detail, the platform and foundation support are cylindrical structures, which are reinforced concrete structures.

[0010] In detail, the auxiliary support is a rectangular structure, and its length is the same as that of the basic support.

[0011] In detail, the central column is a hexagonal prism structure, and the soil reinforcement frame is provided in six sets, which are distributed equidistantly in a ring along the outer wall of the central column.

[0012] In detail, the lower end of the platform is also fixed with a second soil layer anti-detachment rod, which is symmetrically distributed on both sides of the central column and is set perpendicular to the horizontal plane.

[0013] In detail, the lower end of the soil layer anti-detachment rod two is fixed with a conical head two, and several barbs two are fixedly distributed on the surface of the soil layer anti-detachment rod two.

[0014] In detail, the soil reinforcement frame, soil anti-detachment rod one, barb one, conical head one, soil anti-detachment rod two, conical head two and barb two are all made of stainless steel and are covered with a galvanized layer.

[0015] In detail, the upper end of the platform is embedded with a base, which is a circular platform structure.

[0016] The design scheme proposed in this utility model has the following beneficial effects in application:

[0017] 1. This scheme adopts a coordinated arrangement of basic supports, auxiliary supports and central columns. The basic supports are located at the four corners of the platform to provide core support. The auxiliary supports are flexibly added or removed according to the span to enhance local stability. The central column, together with the soil reinforcement frame, effectively prevents cracking in the center of the platform. The three types of supports adopt cylindrical, rectangular and hexagonal prism structures respectively, giving full play to the advantages of different cross-sectional shapes in terms of compressive strength, bending strength and shear strength, forming a three-dimensional support layout, which significantly improves the overall stability and deformation resistance of the tower crane under complex loads.

[0018] 2. As described in 1, a crisscrossing soil anchorage layout is formed by horizontally installed soil anti-detachment rod 1 (with conical head and barb) and vertically distributed soil anti-detachment rod 2. The horizontal anti-detachment rod can resist the lateral force when the tower crane is running and prevent the pile and soil from separating. The vertical anti-detachment rod strengthens the vertical fixation through barbs and conical heads. The dual design greatly improves the mechanical interlocking effect between the pile foundation and the soil. It is especially suitable for easily loosened geological conditions such as backfill soil, ensuring the long-term stability of the tower crane when it is working at high altitude.

[0019] 3. As described in 2, the core components adopt a reinforced concrete structure, combined with stainless steel galvanized anti-detachment components (such as reinforcing frames and anti-detachment rods), which not only ensures the compressive strength of the main load-bearing structure, but also extends the service life of underground components through corrosion-resistant materials. The top of the platform is pre-embedded with an alloy base, which facilitates the installation of the tower crane and improves the connection strength. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a bottom view of the overall bottom of this utility model;

[0022] Figure 3 This is a schematic diagram of the central column and soil reinforcement frame structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the second structure of the soil layer anti-detachment rod of this utility model.

[0024] In the diagram: 1. Platform; 11. Foundation support; 12. Auxiliary support; 13. Central column; 14. Soil reinforcement frame; 15. Soil anti-detachment rod one; 16. Hook one; 17. Conical head one; 2. Soil anti-detachment rod two; 21. Conical head two; 22. Hook two; 3. Base platform. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figures 1-4A tower crane pile foundation layout structure includes a platform 1, with foundation supports 11 fixed beneath the platform 1. The foundation supports 11 are one of the core support points of the entire pile foundation, providing stability to the platform 1 at four locations after its construction. The foundation supports 11 are distributed along the four corners of the bottom of the platform 1. Auxiliary supports 12 are provided between adjacent foundation supports 11. The auxiliary supports 12 are mainly used to prevent the platform 1 from having an excessively large span, where the foundation supports 11 alone cannot provide sufficient stability in certain areas. The number of auxiliary supports 12 can be increased according to the span of the platform 1 to ensure the platform 1's safe and stable operation while supporting the tower crane. The upper end of the support column 12 is fixed to the lower end of the platform 1. The auxiliary support column 12 is set in the central area of ​​the lower edge of the platform 1. The central column 13 is fixed at the bottom center of the platform 1. Since the tower crane structure is a frame structure, its main load-bearing points are in the edge area of ​​the platform 1, but the central part still needs to be supported by the central column 13 to avoid insufficient load-bearing capacity in the central area of ​​the platform 1, which would cause the platform 1 to crack. The outside of the central column 13 is fixed with a soil reinforcement frame 14 through a bracket. The soil reinforcement frame 14 can increase the contact area between the central column 13 and the backfill soil. The soil reinforcement frame 14 is a T-shaped structure, which can contact the soil in all directions to form an anti-loosening protection for the central column 13.

[0027] A soil layer anti-detachment rod 15 is fixed to the outward side of the auxiliary support 12. A conical head 17 is fixed to the end of the soil layer anti-detachment rod 15 away from the auxiliary support 12. Several barbs 16 are distributed on the surface of the soil layer anti-detachment rod 15. The soil layer anti-detachment rod 15 is set parallel to the horizontal plane. The soil layer anti-detachment rod 15, together with the conical head 17, can increase the contact area between the auxiliary support 12 and the soil layer, thereby preventing the overall pile foundation from separating and loosening from the soil layer in the horizontal direction after the tower crane is raised or during operation.

[0028] It should be further noted that platform 1 and foundation support 11 are cylindrical structures made of reinforced concrete. Circular piles have the same bending resistance in all directions, which makes them more stable and resistant to deformation when subjected to uneven loads or lateral forces. Circular piles have a larger moment of inertia for the same cross-sectional area, which means that under the same bearing capacity requirements, circular piles can use less material, thereby reducing costs.

[0029] It should be further noted that the auxiliary support 12 is a rectangular structure with the same length as the foundation support 11. Rectangular piles have good compressive strength when subjected to axial pressure. Due to their cross-sectional shape, rectangular piles are not prone to buckling or instability under pressure. Rectangular piles are suitable for various geological conditions, such as soft soil, hard soil, and rock. By adjusting the pile length and width, different bearing capacity requirements can be met.

[0030] It should be further noted that the central column 13 is a hexagonal prism structure, and the soil reinforcement frame 14 is provided in six sets and is distributed equidistantly in a ring along the outer wall of the central column 13. The central column 13 and the auxiliary support column 12 are also steel-concrete structures and are buried in the backfill soil layer. The hexagonal prism type pile has relatively uniform bending performance in all directions, which makes it more stable and resistant to deformation when subjected to uneven loads or lateral forces. The hexagonal prism type pile has good impact resistance when subjected to impact loads and is not easy to break or be damaged. The hexagonal prism type pile has good shear resistance when subjected to shear force. Due to its cross-sectional shape, the hexagonal prism type pile is not easy to undergo shear failure when subjected to shear.

[0031] It should be further explained that a second soil layer anti-detachment rod 2 is also fixed at the lower end of the platform 1. The second soil layer anti-detachment rod 2 is symmetrically distributed on both sides of the central column 13. The second soil layer anti-detachment rod 2 is set perpendicular to the horizontal plane. The number of the second soil layer anti-detachment rod 2 can be increased or decreased according to the actual size of the platform 1.

[0032] It should be further explained that the lower end of the soil layer anti-detachment rod 2 is fixed with a conical head 21, and several barbs 22 are fixedly distributed on the surface of the soil layer anti-detachment rod 2. The soil layer anti-detachment rod 2, together with the conical head 21, can protect the vertical connection between the entire pile foundation and the soil layer from detachment. The barbs 22 can reinforce the soil layer at multiple points, so that the entire pile foundation is further strengthened and stabilized underground.

[0033] It should be further noted that the soil reinforcement frame 14, soil anti-detachment rod 15, barb 16, conical head 17, soil anti-detachment rod 2, conical head 21, and barb 22 are all made of stainless steel and covered with a galvanized layer. Stainless steel has good structural strength, and combined with the galvanized layer, it has good corrosion resistance.

[0034] It should be further explained that the upper end of the platform 1 is embedded with a base 3. The base 3 is a circular platform structure made of alloy material. It is embedded during the casting of the platform 1 and can be used for the bottom installation of the tower crane. The base 3 can be embedded or welded to the outside to increase various installation structures for fixing to the bottom of the tower crane, increasing the ways to fix the bottom of the tower crane and improving the installation strength.

[0035] Working Method: This scheme adopts a three-level support layout of basic supports, auxiliary supports, and a central column to achieve scientific load transfer and optimized distribution. Basic support 11, as the core load-bearing component, uses a cylindrical reinforced concrete structure and is symmetrically arranged along the four corners of platform 1. Utilizing the isotropic bending resistance of the circular cross-section, it uniformly resists the multi-directional moments and lateral wind loads generated during tower crane operation. Auxiliary support 12 uses a rectangular cross-section and is located at the mid-span between adjacent basic supports. Its excellent compressive strength effectively compensates for insufficient local bearing capacity when the span of the basic support is large. To prevent excessive flexural deformation of the platform due to concentrated loads, the central column 13 is designed as a hexagonal prism structure. It forms a three-dimensional anchorage with the backfill soil through six sets of T-shaped soil reinforcement frames 14. This not only enhances the shear resistance of the central area of ​​the platform, but also disperses torsional stress by utilizing the uniform bending resistance of the prism cross-section. When the tower crane is subjected to eccentric loads, the foundation support bears the main vertical force, the auxiliary support suppresses horizontal displacement, and the central column provides additional constraints through the interaction between the reinforcement frame and the soil, forming a three-dimensional and stable load transfer path, which significantly improves the stiffness and overturning resistance of the overall structure.

[0036] This scheme constructs a multi-dimensional soil anchoring layout by using horizontal and vertical anti-slip bar layouts combined with special cross-section supports to ensure the long-term stability of the pile foundation under dynamic loads. The horizontal soil anti-slip bar 15 is set parallel to the ground, and its barbs 16 and conical heads 17 enhance the connection with the surrounding soil through mechanical interlocking, forming a continuous horizontal anti-slip barrier, which effectively resists the tendency of the foundation to slip under the horizontal thrust generated by the tower crane or the wind load. The vertical soil anti-slip bar 2 is arranged perpendicular to the ground, and its conical heads 21 and barbs 22 penetrate into the soil layer to provide vertical pull-out resistance and prevent the pile foundation from separating from the soil under tower crane heightening or sudden loads.

[0037] The cylindrical cross-section of the foundation support 11 has uniform bending stiffness, which can buffer the alternating torque generated by the tower crane's rotation and reduce vibration transmission. The rectangular cross-section of the auxiliary support 12, through its directional moment of inertia, specifically suppresses the transmission of vibration waves at the edge of the platform and avoids local resonance. The hexagonal prism structure of the central column 13 decomposes the dynamic shear force into six facets. Combined with the damping effect of the T-shaped soil reinforcement frame 14, it reduces the risk of stress concentration under impact loads.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tower crane pile foundation layout structure, comprising a platform (1), characterized in that: The platform (1) is fixed with a foundation support (11) below it. The foundation support (11) is distributed along the four corners of the bottom of the platform (1). An auxiliary support (12) is set between two adjacent foundation supports (11). The upper end of the auxiliary support (12) is fixed to the lower end of the platform (1). The auxiliary support (12) is set in the center area of ​​the lower edge of the platform (1). A central column (13) is fixed at the bottom center of the platform (1). A soil reinforcement frame (14) is fixed to the outside of the central column (13) through a bracket. The auxiliary support (12) is fixed with a soil layer anti-detachment rod (15) on the outward side. The end of the soil layer anti-detachment rod (15) away from the auxiliary support (12) is fixed with a conical head (17). Several barbs (16) are distributed on the surface of the soil layer anti-detachment rod (15). The soil layer anti-detachment rod (15) is set parallel to the horizontal plane.

2. The tower crane pile foundation layout structure according to claim 1, characterized in that: The platform (1) and the foundation support (11) are cylindrical structures, which are reinforced concrete structures.

3. The tower crane pile foundation layout structure according to claim 2, characterized in that: The auxiliary support (12) is a rectangular structure, and its length is the same as that of the basic support (11).

4. The tower crane pile foundation layout structure according to claim 3, characterized in that: The central column (13) is a hexagonal prism structure, and the soil reinforcement frame (14) is provided in six sets and is distributed equidistantly in a ring along the outer wall of the central column (13).

5. The tower crane pile foundation layout structure according to claim 4, characterized in that: The lower end of the platform (1) is also fixed with a second soil layer anti-detachment rod (2). The second soil layer anti-detachment rod (2) is symmetrically distributed on both sides of the central column (13) and is set perpendicular to the horizontal plane.

6. The tower crane pile foundation layout structure according to claim 5, characterized in that: The lower end of the soil layer anti-detachment rod 2 (2) is fixed with a conical head 2 (21), and a number of barbs 2 (22) are fixedly distributed on the surface of the soil layer anti-detachment rod 2 (2).

7. The tower crane pile foundation layout structure according to claim 6, characterized in that: The soil reinforcement frame (14), soil anti-detachment rod one (15), barb one (16), cone head one (17), soil anti-detachment rod two (2), cone head two (21) and barb two (22) are all made of stainless steel and are covered with a galvanized layer.

8. The tower crane pile foundation layout structure according to claim 1, characterized in that: The upper end of the platform (1) is embedded with a base (3), which is a circular platform structure.

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