Reinforced concrete pile with high bearing capacity
By setting steel rings on the outer wall of concrete piles to form convex strips and performing oblique support, the problem of insufficient friction of existing concrete piles is solved, and the bearing capacity and pull-up resistance and settlement resistance are significantly improved.
Patent Information
- Application Number
- CN202422295592.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The outer wall of existing concrete piles is too smooth in the vertical direction, resulting in insufficient friction when in contact with the outside world and the bearing capacity needs to be improved.
By setting steel bar rings on the outer wall of the concrete pile to form convex strips, and setting steel bars inside to support convex strips to increase the friction between the pile body and the outside world.
The pile body's pull-out and settlement resistance are significantly improved, thereby improving the bearing capacity. The convex strips and steel rings are both high-strength, reducing the possibility of deformation and fracture.
Smart Images
Figure CN223048029U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of concrete piles, and in particular to a reinforced concrete pile with high bearing capacity. Background Art
[0002] Concrete piles are used to be driven into the ground as the foundation for building loads. There are many types of precast concrete piles in the market for pile foundation projects, such as square piles, tubular piles (round pipe piles, square pipe piles), etc. These pile types have their own advantages and disadvantages and their applicable engineering conditions. Tubular piles are mostly prestressed concrete piles, which have the advantages of high bearing capacity and material saving.
[0003] The existing utility model patent with the publication number CN2782761Y discloses a hollow precast pile for foundation, which is a vertical concrete cylindrical pile built together with a steel reinforcement cage. The top of the pile is wrapped with a steel plate hoop, the top of the pile is a solid cross-section with a grouting pipe in the center, and the inside of the pile body below the solid pile top is a cylindrical hollow cross-section.
[0004] Regarding the above related technologies, the inventor believes that the outer wall of the concrete pile does not have undulations in the vertical direction and is too smooth, resulting in insufficient friction when contacting the outside world, and the bearing capacity needs to be improved. Utility Model Content
[0005] This application provides a reinforced concrete pile with high bearing capacity. By setting steel reinforcement rings to form convex strips and arranging steel bars inside to brace the convex strips, the friction between the concrete pile and the outside world is increased, thereby improving the bearing capacity.
[0006] The reinforced concrete pile with high bearing capacity provided by this application adopts the following technical solutions:
[0007] A reinforced concrete pile with high bearing capacity includes a pile body made of concrete and steel bars fixed in the pile body. The steel bars include a steel reinforcement cage located inside the solid part of the pile body and a plurality of steel reinforcement rings located outside the steel reinforcement cage. The plurality of steel reinforcement rings are distributed along the vertical direction and are located at the outer wall of the pile body. An upwardly inclined upper support bar and a downwardly inclined lower support bar are fixed on the side of the steel reinforcement ring facing the steel reinforcement cage. The ends of the upper support bar and the lower support bar away from the steel reinforcement ring are fixed to the steel reinforcement cage, and the steel reinforcement ring is coated with concrete to form a convex strip.
[0008] By adopting the above technical solutions, since the outer wall of the pile body protrudes with horizontally extending convex strips, the soil or concrete plays a limiting role on the convex strips and generates a large amount of friction to prevent the convex strips from moving up and down, significantly improving the uplift and settlement resistance of the pile body, thereby improving the bearing capacity. The steel reinforcement ring inside the convex strip braces the convex strip, making the convex strip have high strength. The steel reinforcement ring also has high strength due to the support of the upper support bar and the lower support bar. The convex strip and the steel reinforcement ring are not easily deformed or broken.
[0009] Optionally, the pile body is a non-circular pile, and edge strips made of concrete are fixed at the corners of the pile body, and the length direction of the edge strips is along the vertical direction.
[0010] By adopting the above technical solution, during the process of hoisting the pile body into the foundation pit, the edge strips contact the pit wall of the foundation pit, playing a certain guiding role and improving the smoothness of the pile body lowering.
[0011] Optionally, edge reinforcements made of steel bars are fixed inside the edge strips.
[0012] By adopting the above technical solution, the edge reinforcements inside the edge strips can play a role in strengthening the support, making the edge strips not easily deformed when being impacted.
[0013] Optionally, the edge reinforcements and the steel reinforcement cage are fixed through welding connection bars.
[0014] By adopting the above technical solution, the edge reinforcements and the steel reinforcement cage are connected and fixed through the connection bars, avoiding the displacement of the edge reinforcements.
[0015] Optionally, the diameter of the steel bars of the edge reinforcements is larger than the diameter of the steel bars of the steel bar rings, and positioning holes for the steel bar rings to pass through are formed inside the edge reinforcements.
[0016] By adopting the above technical solution, a connection relationship is established between the edge reinforcements and the steel bar rings, playing a role of mutual support, thereby improving the overall stability of the steel bars.
[0017] Optionally, the steel bar ring is a ring formed by bending a single steel bar, and the steel bar is welded end to end to form a closed steel bar ring.
[0018] By adopting the above technical solution, the steel bar ring passes through all the edge reinforcements and then is welded end to end to form a ring, which is convenient for realizing the assembly of the steel bar ring and the edge reinforcements.
[0019] Optionally, reinforcing ribs are fixed between the upper support ribs and the lower support ribs, and the two ends of the reinforcing ribs are respectively connected to the middle parts of the upper support ribs and the lower support ribs.
[0020] By adopting the above technical solution, the reinforcing ribs are used to improve the anti-deformation ability of the upper support ribs and the lower support ribs, thereby further strengthening the stability of the steel bar ring.
[0021] Optionally, a hollow hole is provided at the center of the pile body.
[0022] By adopting the above technical solution, the total weight of the concrete pile is reduced through the hollow hole, and concrete materials are saved.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] 1. The outer wall of the pile body protrudes with horizontally extending ridges, so that the soil or concrete plays a limiting role on the ridges and generates a large frictional force to prevent the ridges from moving up and down, significantly improving the uplift and settlement resistance of the pile body, thereby enhancing the bearing capacity.
[0025] 2. The steel bar ring inside the ridge supports the ridge, making the ridge have high strength. The steel bar ring also has high strength due to the support of the upper support bars and the lower support bars. Both the ridge and the steel bar ring are not easily deformed or broken.
[0026] 3. The side bars inside the side strip can play a role in strengthening the support, so that the side strip is not easily deformed when impacted. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 is a perspective view of a high-bearing-capacity reinforced concrete pile according to an embodiment;
[0028] Figure 2 is a perspective view of the internal steel bars according to an embodiment;
[0029] Figure 3 is a perspective view of each steel bar unit according to an embodiment;
[0030] Figure 4 is Figure 3 the front sectional view of
[0031] Figure 5 is Figure 3 the top view of
[0032] Description of the reference numerals: 1. Pile body; 10. Hollow hole; 2. Steel bar cage; 3. Steel bar ring; 31. Upper support bar; 32. Lower support bar; 11. Ridge; 33. Reinforcing bar; 12. Side strip; 4. Side bar; 41. Connecting bar; 42. Positioning hole. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0033] The following further describes the present application in detail with reference to the drawings.
[0034] Referring to Figure 1 , this embodiment discloses a high-bearing-capacity reinforced concrete pile, including a pile body 1 made of concrete and steel bars fixed in the pile body 1. The pile body 1 is a non-circular pile, and a hollow hole 10 is provided at the center of the pile body 1. The hollow hole 10 has little influence on the strength of the concrete pile, reduces the total weight of the concrete pile through the hollow hole 10, and saves concrete materials.
[0035] Referring to Figure 2 , the steel bars include a steel bar cage 2 located inside the solid part of the pile body 1 and multiple steel bar rings 3 located outside the steel bar cage 2. Among them, the steel bar cage 2 is the main strengthening structure inside the pile body 1, and the steel bar cage 2 is fixed by multiple vertical bars and multiple horizontal bars.
[0036] Referring to Figures 1 to 5 , a plurality of steel bar rings 3 are distributed in the vertical direction. The steel bar rings 3 are located on the outer wall of the pile body 1. An upwardly inclined upper support bar 31 and a downwardly inclined lower support bar 32 are fixed on the side of the steel bar ring 3 facing the steel bar cage 2. The ends of the upper support bar 31 and the lower support bar 32 away from the steel bar ring 3 are fixed to the steel bar cage 2. The steel bar ring 3 is coated with concrete to form a convex strip 11, so that the steel bar ring 3 is not exposed outside the concrete, avoiding corrosion of the steel bar ring 3. The upper support bar 31 and the lower support bar 32 support the steel bar ring 3. The upper support bar 31 and the lower support bar 32 can be in tension or compression, thereby improving the stability of the steel bar ring 3 in its position.
[0037] Referring to Figure 3 and Figure 4 , a reinforcing bar 33 is fixed between the upper support bar 31 and the lower support bar 32. The two ends of the reinforcing bar 33 are respectively connected to the middle parts of the upper support bar 31 and the lower support bar 32. The reinforcing bar 33 is used to improve the anti-deformation ability of the upper support bar 31 and the lower support bar 32, thereby further strengthening the stability of the steel bar ring 3.
[0038] Referring to Figures 1 to 5 , edge strips 12 made of concrete are fixed at the corners of the pile body 1. The length direction of the edge strips 12 is along the vertical direction. Edge reinforcing bars 4 made of steel bars are fixed inside the edge strips 12. The edge reinforcing bars 4 and the steel bar cage 2 are fixed by welding connecting bars 41. The edge strips 12 protect the four corners of the pile body 1. The edge reinforcing bars 4 inside the edge strips 12 can play a role in strengthening the support, making the edge strips 12 not easily deformed when being impacted; and during the process of lowering the pile body 1 into the pit, the vertically arranged edge strips 12 can also play a guiding role, improving the smoothness of lowering the pile body 1.
[0039] Referring to Figure 3 , the diameter of the steel bars of the edge reinforcing bars 4 is larger than that of the steel bars of the steel bar rings 3. Positioning holes 42 for the steel bar rings 3 to pass through are formed inside the edge reinforcing bars 4. Through this structure, a connection relationship is established between the edge reinforcing bars 4 and the steel bar rings 3, playing a role of mutual support, thereby improving the overall stability of the steel bars. The steel bar ring 3 is formed by bending a single steel bar. The steel bar is connected end to end and welded to form a closed steel bar ring 3. Through this structure, the steel bar ring 3 passes through all the edge reinforcing bars 4 and then is connected end to end and welded into a ring, which is convenient for realizing the assembly of the steel bar ring 3 and the edge reinforcing bars 4.
[0040] The implementation principle of a high-bearing-capacity reinforced concrete pile in an embodiment of the present application is as follows: After digging a foundation pit on the ground, the pile body 1 is hoisted into the foundation pit. The edge strips 12 are in contact with the pit wall of the foundation pit, playing a certain guiding effect and improving the smoothness of lowering the pile body 1.
[0041] After the pile body 1 is lowered, the gap between the pile body 1 and the foundation pit can be filled with soil by compaction or filled with concrete. After completion, the soil or the later-filled concrete is in close contact with the outer wall of the pile body 1.
[0042] Since the convex strip 11 extending horizontally protrudes from the outer wall of the pile body 1, the soil or concrete plays a limiting role on the convex strip 11 and generates a large frictional force to prevent the convex strip 11 from moving up and down, significantly improving the uplift and settlement resistance of the pile body 1, thereby improving the bearing capacity. The steel ring 3 inside the convex strip 11 supports the convex strip 11, making the convex strip 11 have high strength. The steel ring 3 also has high strength due to the support of the upper support bar 31 and the lower support bar 32. Both the convex strip 11 and the steel ring 3 are not easily deformed or broken.
[0043] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A reinforced concrete pile with high bearing capacity, comprising a pile body (1) made of concrete and steel bars fixed in the pile body (1), characterized in that: The steel bars comprise a steel cage (2) located inside the solid pile body (1) and a plurality of steel rings (3) located outside the steel cage (2). The plurality of steel rings (3) are distributed in a vertical direction. The steel rings (3) are located at the outer wall of the pile body (1). An upper support rib (31) tilted upward and a lower support rib (32) tilted downward are fixed to the side of the steel ring (3) facing the steel cage (2). The ends of the upper support rib (31) and the lower support rib (32) away from the steel ring (3) are fixed to the steel cage (2). The steel ring (3) is covered with concrete to form a convex strip (11).
2. A reinforced concrete pile with high bearing capacity according to claim 1, characterized in that: The pile body (1) is a non-circular pile, and side strips (12) made of concrete are fixed at the corners of the pile body (1), and the length direction of the side strips (12) is along the vertical direction.
3. A reinforced concrete pile with high bearing capacity according to claim 2, characterized in that: Side bars (4) made of steel bars are fixed inside the side bars (12).
4. A reinforced concrete pile with high bearing capacity according to claim 3, characterized in that: The side reinforcement (4) and the reinforcement cage (2) are fixed by welding connecting reinforcements (41).
5. A reinforced concrete pile with high bearing capacity according to claim 3, characterized in that: The steel bar diameter of the side bar (4) is greater than the steel bar diameter of the steel bar ring (3), and a positioning hole (42) for the steel bar ring (3) to pass through is provided in the side bar (4).
6. A reinforced concrete pile with high bearing capacity according to claim 5, characterized in that: The steel bar ring (3) is a ring formed by bending a single steel bar, and the steel bars are connected end to end and welded to form a closed steel bar ring (3).
7. A reinforced concrete pile with high bearing capacity according to claim 1, characterized in that: A reinforcing rib (33) is fixed between the upper supporting rib (31) and the lower supporting rib (32), and two ends of the reinforcing rib (33) are respectively connected to the middle parts of the upper supporting rib (31) and the lower supporting rib (32).
8. The high-bearing capacity reinforced concrete pile according to claim 1, characterized in that: A hollow hole (10) is provided at the center of the pile body (1).