Ribbed hollow square pile

Abstract

The utility model discloses a ribbed hollow square pile which comprises a square pile body, a through hole penetrates through the center of the square pile body, plane portions are arranged on the four outer side faces of the square pile body, and the two radial sides of each plane portion are connected with first protruding portions which extend and protrude outwards. The side, away from the through hole, of the first protruding part is connected with a second protruding part parallel to the plane part, the intersecting edge of every two adjacent second protruding parts forms a sharp corner part, the two axial ends of the square pile body are further provided with end structures, the pile surface area is increased by adjusting the shape of the hollow square pile, and the hollow square pile is more compact. Meanwhile, compared with an existing X-shaped pile, the structure with the parallel rib edges is convenient to stack, the soil squeezing effect is reduced compared with a hollow square pile with the same bearing capacity, and compared with a common square pile, the material consumption of the same surface area is lower.

Description

Technical Field

[0001] This utility model relates to the field of ribbed hollow square piles, specifically to a ribbed hollow square pile. Background Technology

[0002] Hollow square piles are a common type of precast concrete component, widely used in the field of construction engineering. Bearing capacity is the core performance characteristic of hollow square piles, and how to improve it has long been a problem to be solved in this field. Therefore, this utility model proposes a ribbed hollow square pile. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model provides a ribbed hollow square pile. By adjusting the shape of the hollow square pile, the surface area of ​​the pile is increased, thereby improving the lateral friction resistance and thus increasing the bearing capacity. At the same time, compared with the existing X-type pile, the parallel rib structure is easy to stack. Compared with hollow square piles with the same bearing capacity, the soil squeezing effect is reduced. Compared with ordinary square piles, less material is consumed for the same surface area.

[0004] Technical solution

[0005] A ribbed hollow square pile includes a square pile body with a through hole in the center. The four outer sides of the square pile body are provided with flat portions. First protrusions extending outward are connected to the radial sides of each flat portion. Second protrusions parallel to the flat portions are connected to the side of each first protrusion away from the through hole. The intersecting edges of two adjacent second protrusions form a sharp angle. End structures are also provided at both axial ends of the square pile body. A mold structure for forming the square pile body and the end structures is also provided on the outer side of the square pile body. A steel structure is provided inside the square pile body.

[0006] Furthermore, the mold structure includes two semi-circular tubular running wheels, and a V-shaped first template located in the arc concave surface of the running wheels is fixed on the mating surface of the running wheels. A second template is provided on the two sides of the first template near the main body of the square pile.

[0007] Furthermore, the end structure includes end heads disposed at both ends of the square pile body, with all four sides flush with the second protrusion of the square pile body.

[0008] Furthermore, the steel structure includes a plurality of prestressed main bars disposed inside the main body of the square pile and extending to the end head at both ends. A plurality of main stirrups evenly distributed at equal intervals inside the main body of the square pile are sleeved on the outside of the prestressed main bars. An angle bar extending to the end head is disposed inside the corner portion. Additional ordinary steel bars are disposed between the angle bars and located inside the end head. Additional rib distribution bars are disposed between the angle bars and the prestressed main bars and located inside the main body of the square pile. An end stirrup is disposed inside the end head and sleeved on the outside of the angle bars and the additional ordinary steel bars. Mechanical joint sleeves are disposed at both ends of the angle bars and the prestressed main bars. Four notches for tightening the intermediate nuts of the mechanical joints are disposed at the four corners of the end face of the first end head.

[0009] In Embodiment 2, the steel structure includes a plurality of prestressed main bars disposed inside the main body of the square pile and extending to the end head at both ends. The outer side of the prestressed main bars is fitted with a plurality of main stirrups that are evenly distributed at equal intervals inside the main body of the square pile. The end head is provided with a plurality of additional ordinary steel bars. The outer side of the additional ordinary steel bars is fitted with a plurality of end stirrups. Mechanical joint sleeves are provided at both ends of the prestressed main bars.

[0010] In Embodiment 3, the mold structure includes two semi-circular tubular running wheels. A V-shaped first template located in the arc concave surface of the running wheels is fixed on the mating surface of the running wheels. A second template is provided on two sides of the first template near the main body of the square pile. A third template is also provided on the first template at both ends of the second template.

[0011] Furthermore, the end structure includes end heads disposed at both ends of the square pile body, with all four sides flush with the planar portion of the square pile body.

[0012] Furthermore, the steel structure includes several prestressed main bars located inside the main body of the square pile and extending to the end head at both ends. The outer side of the prestressed main bars is fitted with several main stirrups that are evenly distributed at equal intervals inside the main body of the square pile and the end head.

[0013] Beneficial effects

[0014] Compared with the prior art, this utility model has the following advantages: by adjusting the shape of the hollow square pile, the surface area of ​​the pile is increased, thereby increasing the lateral friction resistance and thus improving the bearing capacity. At the same time, compared with the existing X-type pile, the parallel rib structure is easier to stack. Compared with hollow square piles with the same bearing capacity, the soil squeezing effect is reduced. Compared with ordinary square piles, less material is consumed for the same surface area. Attached Figure Description

[0015] Figure 1This is a cross-sectional view of the pile body according to Embodiment 1 of this utility model;

[0016] Figure 2 This is a cross-sectional view of the pile end in Example 1;

[0017] Figure 3 This is a diagram of the pile end steel structure for Example 1;

[0018] Figure 4 These are schematic diagrams of the mold structures in Examples 1 and 2;

[0019] Figure 5 This is a cross-sectional view of the pile body in Example 2;

[0020] Figure 6 This is a cross-sectional view of the pile end in Example 2;

[0021] Figure 7 This is a diagram of the pile end steel structure for Example 2;

[0022] Figure 8 This is a cross-sectional view of the pile body in Example 3;

[0023] Figure 9 This is a cross-sectional view of the pile end in Example 3;

[0024] Figure 10 This is a schematic diagram of the mold structure in Example 3;

[0025] Figure 11 These are schematic diagrams illustrating the stacking methods in Examples 1 and 2;

[0026] Figure 12 This is a schematic diagram of the stacking method in Embodiment 3;

[0027] Figure 13 This is a schematic diagram of the pile end elevation structure of Example 1;

[0028] Figure 14 This is a schematic diagram of the pile end elevation structure in Example 2.

[0029] Attached icon number

[0030] End structure 901, mold structure 902, steel structure 903, running wheel 1, flat part 2, first protrusion 3, sharp corner part 4, second protrusion 5, through hole 6, square pile body 7, first template 8, first end head 9, second end head 10, third template 11, second template 12, end stirrup 13, prestressed main reinforcement 14, mechanical joint sleeve 15, corner reinforcement 16, main body stirrup 17, additional distribution reinforcement in rib 18, additional ordinary reinforcement 19, notch 20. Detailed Implementation

[0031] To better illustrate the content of this utility model, the following description is provided in conjunction with the accompanying drawings and embodiments:

[0032] have Figures 1-14 As shown, this utility model discloses a ribbed hollow square pile, including a square pile body 7, a through hole 6 penetrating the center of the square pile body 7, and four outer sides of the square pile body 7 are provided with flat parts 2. The radial sides of the flat parts 2 are connected to the first protrusions 3 extending outward. The side of the first protrusions 3 away from the through hole 6 is connected to the second protrusions 5 parallel to the flat parts 2. The intersecting edges of two adjacent second protrusions 5 form a sharp corner 4. The two axial ends of the square pile body 7 are also provided with end structures 901. The outer side of the square pile body 7 is also provided with a mold structure 902 for forming the square pile body 7 and the end structures 901. The inside of the square pile body 7 is provided with a steel structure 903.

[0033] Furthermore, the mold structure 902 includes two semi-circular tubular running wheels 1, and a V-shaped first template 8 located in the arc concave surface of the running wheel 1 is fixed on the splicing surface of the running wheel 1. A second template 12 is provided on the two sides of the first template 8 near the main body of the square pile 7.

[0034] Furthermore, the end structure 901 includes a first end head 9 disposed at both ends of the square pile body 7 and whose four sides are flush with the second protrusion 5 of the square pile body 7.

[0035] Furthermore, the steel structure 903 includes a plurality of prestressed main reinforcement bars 14 disposed inside the square pile body 7 and extending to the first end head 9 at both ends. A plurality of main stirrups 17, evenly distributed at equal intervals inside the square pile body 7, are sleeved on the outside of the prestressed main reinforcement bars 14. An angle bar 16 extending to the first end head 9 is disposed inside the corner portion 4. Additional ordinary steel bars 19 are disposed between the angle bars 16 and located inside the first end head 9. Additional rib distribution bars 18 are disposed between the angle bars 16 and the prestressed main reinforcement bars 14 and located inside the square pile body 7. End stirrups 13 are also disposed inside the first end head 9 and sleeved on the outside of the angle bars 16 and the additional ordinary steel bars 19. Mechanical joint sleeves 15 are disposed at both ends of the angle bars 16 and the prestressed main reinforcement bars 14. Four notches 20 located at the four corners for tightening the intermediate nuts of the mechanical joints are disposed inside the end face of the first end head 9.

[0036] In Embodiment 2, the steel structure 903 includes a plurality of prestressed main bars 14 disposed inside the square pile body 7 and extending to the first end head 9 at both ends. The outer side of the prestressed main bars 14 is fitted with a plurality of main stirrups 17 that are evenly distributed at equal intervals inside the square pile body 7. A plurality of additional ordinary steel bars 19 are disposed inside the first end head 9. A plurality of end stirrups 13 are fitted outside the additional ordinary steel bars 19. Mechanical joint sleeves 15 are disposed at both ends of the prestressed main bars 14.

[0037] In Embodiment 3, the mold structure 902 includes two semi-circular tubular running wheels 1. A V-shaped first template 8 located in the arc concave surface of the running wheel 1 is fixed on the splicing surface of the running wheel 1. A second template 12 is provided on two sides of the first template 8 near the main body of the square pile 7. A third template 11 located at both ends of the second template 12 is also provided on the first template 8.

[0038] Furthermore, the end structure 901 includes a second end head 10 disposed at both ends of the square pile body 7 and having four sides flush with the flat portion 2 of the square pile body 7.

[0039] Furthermore, the steel structure 903 is provided inside the square pile body 7 and extends to the second end head 10 at both ends, with a plurality of prestressed main bars 14. The outer side of the prestressed main bars 14 is fitted with a plurality of main stirrups 17 that are evenly distributed at equal intervals inside the square pile body 7 and the second end head 10.

[0040] Specifically, when making square piles, the steel structure 903 is erected inside the lower first template 8 and the running wheel 1. After pouring concrete, the upper running wheel 1 and the first template 8 are covered. Then, after centrifugal processing, the concrete is allowed to harden.

[0041] The notch 20 allows the intermediate nut of the mechanical joint to be tightened, thereby applying prestress to the pile joint to eliminate the gap generated at the pile joint due to the deformation of the mechanical connection mechanism under tension. This gap can be misjudged as a broken pile during low strain testing of the pile body.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the technical solutions of this utility model have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A ribbed hollow square pile, characterized in that: The structure includes a square pile body (7), with a through hole (6) penetrating through the center of the square pile body (7). The four outer sides of the square pile body (7) are provided with flat parts (2). The radial sides of the flat parts (2) are connected to the first protrusions (3) extending outward. The side of the first protrusions (3) away from the through hole (6) is connected to the second protrusions (5) parallel to the flat parts (2). The intersecting edges of two adjacent second protrusions (5) form a sharp corner (4). The two axial ends of the square pile body (7) are also provided with end structures (901). The outer side of the square pile body (7) is also provided with a mold structure (902) for forming the square pile body (7) and the end structures (901). The interior of the square pile body (7) is provided with a steel structure (903).

2. A ribbed hollow square pile according to claim 1, characterized in that: The mold structure (902) includes two semi-circular tubular running wheels (1). A V-shaped first template (8) located in the arc concave surface of the running wheel (1) is fixed on the splicing surface of the running wheel (1). A second template (12) is provided on the two sides of the first template (8) near the main body of the square pile (7).

3. A ribbed hollow square pile according to claim 2, characterized in that: The end structure (901) includes end heads (9) disposed at both ends of the square pile body (7) and whose four sides are flush with the second protrusion (5) of the square pile body (7).

4. A ribbed hollow square pile according to claim 3, characterized in that: The steel structure (903) includes a plurality of prestressed main bars (14) disposed inside the main body (7) of the square pile and extending to the end head (9) at both ends. A plurality of main stirrups (17) are uniformly distributed at equal intervals inside the main body (7) of the square pile, and corner bars (16) extending to the end head (9) are disposed inside the corner portion (4). Additional ordinary steel bars (19) are also disposed between the corner bars (16) and located inside the end head (9). 16) An additional distribution bar (18) is provided between the prestressed main bar (14) and the rib located inside the square pile body (7). An end stirrup (13) is also provided inside the end head (9) and sleeved on the outside of the corner bar (16) and the additional ordinary steel bar (19). Mechanical joint sleeves (15) are provided at both ends of the corner bar (16) and the prestressed main bar (14). Four notches (20) for tightening the intermediate nut of the mechanical joint are provided in the end face of the first end head (9).

5. A ribbed hollow square pile according to claim 3, characterized in that: The steel structure (903) includes a plurality of prestressed main bars (14) disposed inside the main body (7) of the square pile and extending to the end head (9) at both ends. The outer side of the prestressed main bars (14) is fitted with a plurality of main stirrups (17) evenly distributed at equal intervals inside the main body (7). The end head (9) is provided with a plurality of additional ordinary steel bars (19). The outer side of the additional ordinary steel bars (19) is fitted with a plurality of end stirrups (13). The two ends of the prestressed main bars (14) are provided with mechanical joint sleeves (15).

6. A ribbed hollow square pile according to claim 1, characterized in that: The mold structure (902) includes two semi-circular tubular running wheels (1). A V-shaped first template (8) located in the arc concave surface of the running wheel (1) is fixed on the splicing surface of the running wheel (1). A second template (12) is provided on two sides of the first template (8) near the main body of the square pile (7). A third template (11) located at both ends of the second template (12) is also provided on the first template (8).

7. A ribbed hollow square pile according to claim 6, characterized in that: The end structure (901) includes end heads (10) disposed at both ends of the square pile body (7) and whose four sides are flush with the flat portion (2) of the square pile body (7).

8. A ribbed hollow square pile according to claim 7, characterized in that: The steel structure (903) is provided inside the main body of the square pile (7) and extends to the end head (10) at both ends. A number of prestressed main bars (14) are provided on the outside of the prestressed main bars (14), which are located inside the main body of the square pile (7) and the end head (10) and are evenly distributed at equal intervals.

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