Anti-seismic building pile foundation

Abstract

The application relates to an anti-seismic building pile foundation, and relates to the technical field of building pile foundations. The anti-seismic building pile foundation comprises a base body, the outer side of the base body is provided with a plurality of main support columns, a plurality of grooves are formed in the outer side surface of the base body and are fixedly connected with first fixing shells, one end of each main support column is fixedly connected with a first fixing block, the first fixing blocks are arranged in the first fixing shells respectively, and a secondary support column is arranged on the side surface of each main support column. Compared with a traditional single columnar pile foundation, the anti-seismic building pile foundation can disperse seismic loads in multiple directions, can transmit transverse seismic forces to a wider soil area through multiple levels of support, and can solve the problems that the anti-seismic building pile foundation with a single columnar structure has limited horizontal shear resistance, is prone to pile body fracture and inclination under the action of strong seismic loads, and the problems are more prominent, especially in soft soil foundations or high-intensity seismic areas.

Description

Technical Field

[0001] This application relates to building pile foundations, and more particularly to a seismic-resistant building pile foundation. Background Technology

[0002] Building pile foundations are foundation components used in building engineering to transfer the loads of the superstructure to the stable bearing layer underground. They are widely used in various civil engineering projects such as high-rise buildings, bridges, and large factories. They typically consist of piles and pile caps. The piles can be made of reinforced concrete, steel, or other materials and are implanted into the ground through methods such as driving, drilling, and casting. Utilizing the friction between the pile and the soil, as well as the bearing capacity of the pile ends, they provide stable vertical support and resistance to horizontal loads for the superstructure, making them a core infrastructure for ensuring the safety and stability of building structures. Under complex loads such as earthquakes and strong winds, the mechanical properties of the pile foundation directly determine the overall disaster resistance of the building; therefore, its structural design and material selection have always been a key research focus in the field of building engineering.

[0003] In practical applications, many existing building pile foundations adopt a single column structure, which has limited resistance to horizontal shear. Under strong seismic loads, the pile body is prone to problems such as fracture and tilting due to the concentration of lateral forces. This type of damage is more prominent, especially in soft soil foundations or high-intensity earthquake zones. Utility Model Content

[0004] The purpose of this application is to provide a seismic-resistant building pile foundation, which solves the problem that single column-shaped building pile foundations have limited resistance to horizontal shear and are prone to problems such as pile fracture and tilting due to lateral force concentration under strong seismic loads. This type of damage is particularly prominent in soft soil foundations or high-intensity earthquake areas.

[0005] The seismic-resistant building pile foundation provided in this application adopts the following technical solution: it includes a base, a plurality of main support columns are provided on the outer side of the base, a plurality of grooves are opened on the outer surface of the base and a first fixing shell is fixedly connected thereto, a first fixing block is fixedly connected to one end of each main support column, a plurality of first fixing blocks are respectively located inside a plurality of first fixing shells, a secondary support column is provided on the side of the main support column, a groove is opened on the outer side of the main support column and a second fixing shell is fixedly connected thereto, a second fixing block is fixedly connected to one end of each secondary support column, the second fixing block is located inside the second fixing shell, a plurality of mounting holes are opened on the outer side of the base, and an extension rod is provided inside the mounting holes; By adopting the above technical solution, the device can form a root-like three-dimensional support structure through the base, main support column and secondary support column. The extension rod follows the base and penetrates into the soil, greatly increasing the contact area between the pile foundation and the soil. Compared with the traditional single column pile foundation, it can disperse seismic loads in multiple directions and transfer lateral seismic forces to a wider soil area through multi-level support. It solves the problem that single column structure building pile foundations have limited resistance to horizontal shear and are prone to problems such as pile fracture and tilting due to lateral force concentration under strong seismic loads. This type of damage is more prominent in soft soil foundations or high-intensity earthquake areas.

[0006] Preferably, a first positioning hole is provided inside the base, inside the first fixing shell, and inside the first fixing block, and a first positioning rod is provided inside the first positioning hole; By adopting the above technical solution, the first positioning rod passes through the positioning holes of the base, the first fixed shell and the first fixed block, which enhances the firmness of the connection between the three and ensures efficient load transfer.

[0007] Preferably, a second positioning hole is provided inside the main support column, the second fixing shell, and the second fixing block, and a second positioning rod is provided inside the second positioning hole; By adopting the above technical solution, the second positioning rod passes through the positioning holes of the main support column, the second fixed shell, and the second fixed block, thereby strengthening the connection between the main support column and the secondary support column and ensuring the effective transmission of force.

[0008] Preferably, the end of the main support column away from the first fixing block is fixedly connected to the first base, and the end of the secondary support column away from the second fixing block is fixedly connected to the second base; By adopting the above technical solution, the first and second bases increase the contact area between the main support column, the secondary support column and the soil, improve the stability of the pile foundation and the soil, and enhance the overturning resistance.

[0009] Preferably, the base has a through hole inside and a limiting rod is movably connected thereto, and the extension rod has a limiting hole inside that is adapted to the limiting rod; By adopting the above technical solution, the limiting rod can limit the position of the extension rod, preventing the extension rod from moving inside the base.

[0010] Preferably, the first fixing shell, the first fixing block, the first positioning rod, the second fixing shell, the second fixing block, and the second positioning rod are all made of steel. By adopting the above technical solutions, the steel fixing shell, fixing block and positioning rod have high strength, which improves the load-bearing capacity and durability of the connection nodes and ensures the long-term stability of the structure.

[0011] Preferably, the base, main support column, and secondary support column are all internally reinforced with steel bars; By adopting the above technical solution, steel bars are inserted inside the base, main support columns and secondary support columns to enhance the tensile and shear strength of each component and improve the overall structural mechanical performance.

[0012] Preferably, the first fixing shell and the first fixing block are fixed by welding, the first positioning rod is simultaneously fixed to the first fixing shell and the first fixing block by welding, the second fixing shell and the second fixing block are fixed by welding, and the second positioning rod is simultaneously fixed to the second fixing shell and the second fixing block by welding. By adopting the above technical solutions, the welding fixing method further enhances the integrity and strength of each connection node, avoids loosening of the connection, and ensures efficient and stable load transfer.

[0013] In summary, this application includes at least one of the following beneficial technical effects: 1. This type of earthquake-resistant building pile foundation, through the base, main support column, secondary support column, first base, second base, and extension rod, forms a root-like three-dimensional support structure when in use. The extension rod extends into the soil along with the base, significantly increasing the contact area between the pile foundation and the soil. Compared with traditional single column pile foundations, it can disperse seismic loads in multiple directions and transfer lateral seismic forces to a wider soil area through multi-level support. It solves the problem that single column pile foundations have limited resistance to horizontal shear and are prone to problems such as pile fracture and tilting due to lateral force concentration under strong seismic loads, especially in soft soil foundations or high-intensity earthquake areas.

[0014] 2. This earthquake-resistant building pile foundation, through the setting of a first fixed shell, a first fixed block, a first positioning hole, a first positioning rod, a second fixed shell, a second fixed block, a second positioning hole, a second positioning block, an installation hole, and a limiting rod, allows the base, main support column, secondary support column, and extension rod to be transported separately during use, reducing the overall volume, lowering transportation difficulty, and saving transportation space. At the same time, the detachable design also facilitates flexible assembly according to construction needs and adapts to transportation in different construction scenarios. During installation, simply placing the first fixed block into the first fixed shell and the second fixed block into the second fixed shell allows for quick and convenient fixing of the main support column to the base and the main support column to the secondary support column. Furthermore, the connection strength between the main support column and the base and the main support column and the secondary support column can be strengthened through the first and second positioning rods, avoiding the problem of insufficient connection strength at the joints caused by relying on single welding or concrete pouring methods for the connection between some pile foundations and various components. Attached Figure Description

[0015] Figure 1This is an axial view schematic diagram of this application; Figure 2 This is a front view illustration of this application; Figure 3 This is an axial view of the main support column of this application; Figure 4 This is an axial view schematic diagram of the substrate of this application; Figure 5 For the purposes of this application Figure 1 Enlarged diagram of point A.

[0016] In the picture: 1. Matrix; 2. Main support column; 3. First fixing shell; 4. First fixing block; 5. First positioning hole; 6. First positioning rod; 7. Secondary support column; 8. Second fixing shell; 9. Second fixing block; 10. Second positioning hole; 11. Second positioning rod; 12. First base; 13. Second base; 14. Mounting hole; 15. Extension rod; 16. Limiting rod. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0018] Example 1: A type of earthquake-resistant building pile foundation, referring to Figure 1 , Figure 2 , Figure 3The system includes a base 1, with several main support columns 2 on the outer side of the base 1. Several grooves are formed on the outer surface of the base 1 and fixedly connected to a first fixing shell 3. One end of each main support column 2 is fixedly connected to a first fixing block 4. Several first fixing blocks 4 are located inside several first fixing shells 3. A secondary support column 7 is provided on the side of each main support column 2. A groove is formed on the outer side of each main support column 2 and fixedly connected to a second fixing shell 8. One end of each secondary support column 7 is fixedly connected to a second fixing block 9, located inside the second fixing shell 8. Several mounting holes 14 are formed on the outer side of the base 1. Extension rods 15 are provided inside the mounting holes 14. A first base 12 is fixedly connected to the end of each main support column 2 away from the first fixing block 4. A second base 15 is fixedly connected to the end of each secondary support column 7 away from the second fixing block 9. The base 13, the main support column 1, the main support column 2, and the secondary support column 7 are all reinforced with steel bars. Through the base 1, the main support column 2, the secondary support column 7, the first base 12, the second base 13, and the extension rod 15, the device can form a root-like three-dimensional support structure through the base 1, the main support column 2, and the secondary support column 7 during use. The extension rod 15 follows the base 1 and penetrates into the soil, greatly increasing the contact area between the pile foundation and the soil. Compared with traditional single column pile foundations, it can disperse seismic loads in multiple directions and transfer lateral seismic forces to a wider soil area through multi-level support. This solves the problem that single column pile foundations have limited resistance to horizontal shear and are prone to problems such as pile fracture and tilting due to lateral force concentration under strong seismic loads, especially in soft soil foundations or high-intensity earthquake areas.

[0019] Example 2: A type of earthquake-resistant building pile foundation, referring to Figure 4 , Figure 5The base 1, the first fixed shell 3, and the first fixed block 4 are all provided with first positioning holes 5, and first positioning rods 6 are provided inside the first positioning holes 5. The main support column 2, the second fixed shell 8, and the second fixed block 9 are all provided with second positioning holes 10, and second positioning rods 11 are provided inside the second positioning holes 10. The base 1 has a through hole and a limit rod 16 is movably connected to it. The extension rod 15 has a limit hole that matches the limit rod 16. The first fixed shell 3, the first fixed block 4, the first positioning rod 6, the second fixed shell 8, the second fixed block 9, and the second positioning rod 11 are all made of steel. The first fixed shell 3 and the first fixed block 4 are fixed by welding. The first positioning rod 6 is simultaneously fixed to the first fixed shell 3 and the first fixed block 4 by welding. The second fixed shell 8 and the second fixed block 9 are fixed by welding. The second positioning rod 11 is simultaneously fixed to the second fixed shell 8 and the second fixed block 9 by welding. The design of the first positioning hole 5, the first positioning rod 6, the second fixing shell 8, the second fixing block 9, the second positioning hole 10, the second positioning block, the mounting hole 14, and the limiting rod 16 allows the base 1, the main support column 2, the auxiliary support column 7, and the extension rod 15 to be transported separately during use, reducing the overall volume, lowering transportation difficulty, and saving transportation space. Simultaneously, the detachable design facilitates flexible assembly according to construction needs, adapting to transportation in different construction scenarios. During installation, simply placing the first fixing block 4 inside the first fixing shell 3 and the second fixing block 9 inside the second fixing shell 8 allows for quick and convenient fixing of the main support column 2 to the base 1 and the main support column 2 to the auxiliary support column 7. Furthermore, the first positioning rod 6 and the second positioning rod strengthen the connection between the main support column 2 and the base 1, and between the main support column 2 and the auxiliary support column 7, avoiding the problem of insufficient connection strength in some pile foundations and components where connections rely heavily on single welding or concrete pouring methods.

[0020] The implementation principle of this application embodiment is as follows: During use, the various components of the device are transported separately to the required location. After transportation, the device is installed. During installation, the user first places the first fixing block 4 at one end of the main support column 2 into the interior of the first fixing shell 3. Then, the first positioning rod 6 passes through the base 1, the main support column 2, and the first positioning hole 5 inside the first fixing shell 3, respectively, thus initially fixing the first fixing shell 3 and the first fixing block 4. After fixing, the user can use an external welding device to weld the first fixing block 4 and the first positioning rod 6, thereby fixing the first fixing block 4 and the first fixing shell 3. The first positioning rod 6 simultaneously fixes the first fixing block 4 and the first fixing shell 3. Afterwards, the user can place the second fixing block 9 at one end of the auxiliary support column 7 into the interior of the second fixing shell 8, and then pass the second positioning rod 11 through the main support column 2, auxiliary support column 7, and first positioning hole 5 inside the base 1, the main support column 2, and the first positioning hole 5 inside the first fixing shell 3. The second positioning hole 10 inside the support column 7 and the second fixing shell 8 is used to initially fix the second fixing shell 8 and the second fixing block 9. After fixing, the user welds the second fixing shell 8 and the second fixing block 9 using an external welding device. The second positioning rod 11 is used to weld the second fixing shell 8 and the second fixing block 9 simultaneously, thereby completing the connection between the base 1, the main support column 2 and the auxiliary support column 7. After connection, the user can insert the extension rod 15 into the installation hole 14 and then insert the limiting rod 16 into the base 1. When inserting, the limiting rod 16 passes through the limiting hole of the extension rod 15 to fix the limiting rod 16. After fixing, the device can be buried in the soil. Then, the device achieves the simultaneous improvement of vertical bearing capacity and horizontal seismic performance through the multi-level synergistic action of the base 1, the main support column 2, the auxiliary support column 7 and the extension rod 15.

Claims

1. A seismic-resistant building pile foundation, comprising a foundation (1), characterized in that: The outer side of the base (1) is provided with several main support columns (2). Several grooves are opened on the outer surface of the base (1) and a first fixing shell (3) is fixedly connected thereto. One end of the main support column (2) is fixedly connected to a first fixing block (4). Several first fixing blocks (4) are respectively located inside several first fixing shells (3). The side of the main support column (2) is provided with a secondary support column (7). The outer side of the main support column (2) is provided with a groove and a second fixing shell (8) is fixedly connected thereto. One end of the secondary support column (7) is fixedly connected to a second fixing block (9). The second fixing block (9) is located inside the second fixing shell (8). Several mounting holes (14) are opened on the outer side of the base (1). An extension rod (15) is provided inside the mounting hole (14).

2. The earthquake-resistant building pile foundation according to claim 1, characterized in that: The base (1), the first fixed shell (3) and the first fixed block (4) are all provided with a first positioning hole (5), and a first positioning rod (6) is provided inside the first positioning hole (5).

3. The earthquake-resistant building pile foundation according to claim 2, characterized in that: The main support column (2), the second fixed shell (8) and the second fixed block (9) are all provided with a second positioning hole (10), and a second positioning rod (11) is provided inside the second positioning hole (10).

4. The earthquake-resistant building pile foundation according to claim 1, characterized in that: The main support column (2) is fixedly connected to the first base (12) at the end away from the first fixing block (4), and the secondary support column (7) is fixedly connected to the second base (13) at the end away from the second fixing block (9).

5. The earthquake-resistant building pile foundation according to claim 1, characterized in that: The base (1) has a through hole inside and a limiting rod (16) is movably connected thereto. The extension rod (15) has a limiting hole inside that is adapted to the limiting rod (16).

6. The earthquake-resistant building pile foundation according to claim 3, characterized in that: The first fixed shell (3), the first fixed block (4), the first positioning rod (6), the second fixed shell (8), the second fixed block (9) and the second positioning rod (11) are all made of steel.

7. The earthquake-resistant building pile foundation according to claim 1, characterized in that: The base (1), main support column (2) and secondary support column (7) are all reinforced with steel bars.

8. A seismic-resistant building pile foundation according to claim 6, characterized in that: The first fixed shell (3) and the first fixed block (4) are fixed by welding. The first positioning rod (6) is fixed to the first fixed shell (3) and the first fixed block (4) by welding. The second fixed shell (8) and the second fixed block (9) are fixed by welding. The second positioning rod (11) is fixed to the second fixed shell (8) and the second fixed block (9) by welding.

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