High-strength hollow square pile
By using inclined and longitudinal steel bars to form a triangular structure in the hollow square pile and welding it in place, the problem of insufficient torsional resistance of the steel structure frame was solved, and the stability and torsional resistance of the steel structure frame were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 江苏地基工程有限公司
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-19
AI Technical Summary
The existing steel structure frame of hollow square piles has insufficient torsional resistance when subjected to torsional force, and is prone to torsional deformation.
Multiple steel bars are used to form a triangular structure. The diagonal and longitudinal steel bars form a stable triangular structure, which is then fixed by welding to enhance the stability of the steel structure frame.
It significantly improves the stability and torsional resistance of the steel structure frame, enhances the overall torsional resistance of the hollow square piles, and the assembly process is simple and quick.
Smart Images
Figure CN224378853U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of precast pile technology, and in particular to a high-strength hollow square pile. Background Technology
[0002] Hollow square piles are a common type of precast concrete component with wide applications in the construction engineering field. Due to their hollow design, hollow square piles can significantly reduce weight and material usage. Although they are hollow structures, load-bearing capacity remains the core performance requirement for hollow square piles.
[0003] A utility model patent with publication number CN216474966U discloses a prestressed hollow square pile reinforcement structure applied to the main body of a hollow square pile. It includes end plates, a first outer reinforcing steel sleeve, a first inner reinforcing steel sleeve, prestressed steel bars, and reinforcing steel bars. A pair of end plates are provided, each positioned at one end of the hollow square pile main body. Multiple first outer reinforcing steel sleeves are provided, evenly spaced and fitted onto the hollow square pile main body. The first inner reinforcing steel sleeve is embedded within the hollow cavity of the hollow square pile main body, and the first inner reinforcing steel sleeve and the first outer reinforcing steel sleeve are nested together. Multiple prestressed steel bars and reinforcing steel bars are provided, connecting the pair of end plates.
[0004] Regarding the aforementioned technologies, the inventors believe that when multiple prestressed steel bars are arranged in parallel, due to the long span of the steel bars, the torsional resistance of the steel frame of this structure is obviously insufficient, and it is prone to torsional deformation when subjected to torsional force, which needs to be improved. Utility Model Content
[0005] This application provides a high-strength hollow square pile, which uses multiple steel bars to form a triangular structure, significantly enhancing the torsional resistance of the steel structure frame and making it less prone to deformation.
[0006] This application provides a high-strength hollow square pile, which adopts the following technical solution:
[0007] A high-strength hollow square pile includes a concrete body, multiple steel spacers, and multiple longitudinal reinforcing bars. The longitudinal reinforcing bars pass through the spacers. It also includes multiple reinforcing members 1 and 2. Reinforcing member 1 includes an integrally fixed block 1 and two half-rings 1. Two inclined reinforcing bars 1 are fixed to the block 1, and the other end of each inclined reinforcing bar 1 is fixed to a longitudinal reinforcing bar near the spacers. Reinforcing member 2 includes an integrally fixed block 2 and a half-ring 2. Two inclined reinforcing bars 2 are fixed to the block 2, and the other end of each inclined reinforcing bar 2 is fixed to a longitudinal reinforcing bar near the spacers. Half-rings 1 and 2 are fixed to the same longitudinal reinforcing bar, with half-ring 2 located between the two half-rings 1. The inclined reinforcing bars 1 and 2 are respectively fixed to two different longitudinal reinforcing bars.
[0008] By adopting the above technical solution, block one facilitates the positioning and installation of one end of the inclined steel bar, and block one also facilitates the positioning and installation of the other end of the inclined steel bar. The inclined steel bars one and two form a stable triangular structure between the spacer ring and the longitudinal steel bar, significantly improving the stability of the steel structure frame.
[0009] Optionally, the inner wall of the semi-ring is snapped against the outer wall of the longitudinal reinforcing bar and fixed by welding.
[0010] By adopting the above technical solution, the assembly between the semi-ring and the longitudinal steel bar is convenient, and the stability after welding is high.
[0011] Optionally, the inner wall of the second semi-ring is snapped and attached to the outer wall of the longitudinal steel bar and fixed by welding, and the first and second semi-rings are also fixed by welding.
[0012] By adopting the above technical solution, the assembly between the semi-ring 2 and the longitudinal steel bar is convenient, and the stability after welding is high.
[0013] Optionally, the block is fixed with two round rods, and the end of the inclined steel bar is provided with a round hole for the round rods to pass through.
[0014] By adopting the above technical solution, the inclined steel bar is fitted outside the round rod through a round hole, which facilitates the positioning of the end of the inclined steel bar and provides a structural support base, which, together with the subsequent welding, further improves the stability.
[0015] Optionally, the block 2 is fixed with two round rods 2, and the end of the inclined steel bar 2 is provided with a round hole 2 for the round rods 2 to pass through.
[0016] By adopting the above technical solution, the second inclined steel bar is sleeved on the outside of the second round rod through the second round hole, which facilitates the positioning of the end of the second inclined steel bar and provides a structural support base, which, together with the subsequent welding, further improves the stability.
[0017] Optionally, the first block and the first inclined steel bar are fixed by welding after installation.
[0018] Optionally, the second block and the second inclined steel bar are fixed by welding after installation.
[0019] Optionally, the spacer ring has positioning holes for longitudinal reinforcing bars to pass through, and the spacer ring has multiple through holes.
[0020] By adopting the above technical solution, the concrete flows through the perforated ring during pouring, thus allowing the concrete to be fully enclosed outside the ring.
[0021] In summary, this application includes at least one of the following beneficial technical effects:
[0022] 1. By using inclined steel bars one and two, a stable triangular structure is formed between the spacer ring and the longitudinal steel bars, thereby improving the stability of the steel structure frame.
[0023] 2. It improves the torsional resistance of the steel structure frame, thereby improving the torsional resistance of the entire hollow square pile;
[0024] 3. The installation of each component is relatively simple, and the assembly structure and welding combination further enhance stability. Attached Figure Description
[0025] Figure 1 This is a cross-sectional view of a high-strength hollow square pile and its steel structure frame diagram, which is an embodiment of the present invention.
[0026] Figure 2 This is a perspective view of the steel structure frame of the embodiment;
[0027] Figure 3 This is a partial view of an embodiment;
[0028] Figure 4 This is a partial exploded view of an embodiment.
[0029] Explanation of reference numerals in the attached drawings: 10. Concrete body; 1. Spacer ring; 2. Longitudinal reinforcement; 11. Positioning hole; 12. Hollow hole; 3. Reinforcing member one; 4. Reinforcing member two; 31. Block one; 32. Half ring one; 5. Diagonal reinforcement one; 33. Round rod one; 51. Round hole one; 41. Block two; 42. Half ring two; 6. Diagonal reinforcement two; 43. Round rod two; 61. Round hole two. Detailed Implementation
[0030] The present application will be further described in detail below with reference to the accompanying drawings.
[0031] Reference Figure 1 This embodiment discloses a high-strength hollow square pile, including a concrete body 10, multiple steel spacers 1, and multiple longitudinal steel bars 2. The longitudinal steel bars 2 are arranged through the spacers 1, and the concrete body 10 is wrapped around the spacers 1 and the longitudinal steel bars 2 by casting.
[0032] Reference Figure 2 and Figure 3 The spacer ring 1 has positioning holes 11 for the longitudinal reinforcing bars 2 to pass through. The outer wall of the spacer ring 1 is square, and each side of the spacer ring 1 has three longitudinal reinforcing bars 2. The inner wall of the spacer ring 1 is circular, and the circular inner wall of the spacer ring 1 corresponds to the hollow part of the hollow square pile. The spacer ring 1 has multiple hollow holes 12. When the concrete is poured, it flows through the hollow holes 12 through the spacer ring 1, so that the concrete can fully wrap around the outside of the spacer ring 1.
[0033] This high-strength hollow square pile also includes multiple reinforcing components 3 and 4. Reinforcing components 3 and 4 are all steel parts and are mass-produced components.
[0034] Reference Figure 3 and Figure 4 The reinforcing component 3 includes an integrally fixed block 31 and two semi-rings 32. Two inclined steel bars 5 are fixed to the block 31. Specifically, two round rods 33 are fixed to the block 31. The ends of the inclined steel bars 5 have round holes 51 for the round rods 33 to pass through. After the block 31 and inclined steel bars 5 are installed, they are fixed by welding. The other end of the inclined steel bar 5 is fixed to the longitudinal steel bar 2 near the spacer ring 1. The outer end of the inclined steel bar 5 simultaneously contacts both the longitudinal steel bar 2 and the spacer ring 1, and is also fixed by welding afterward. The inner wall of the semi-rings 32 is snapped against the outer wall of the longitudinal steel bar 2 and fixed by welding. It should be noted that the inner wall arc angle of the semi-rings 32 is 185-195°. The semi-rings 32 can be installed on the outside of the longitudinal steel bar 2 by snapping, providing stability before welding and facilitating subsequent welding operations.
[0035] The reinforcing component 24 includes an integrally fixed block 241 and a semi-ring 242. Two inclined steel bars 26 are fixed on the block 241. Specifically, two round rods 243 are fixed on the block 241. The ends of the inclined steel bars 26 are provided with round holes 261 for the round rods 243 to pass through. After the block 241 and the inclined steel bars 26 are installed, they are fixed by welding. The other end of the inclined steel bar 26 is fixed to the longitudinal steel bar 2 near the spacer ring 1. The outer end of the inclined steel bar 26 is in contact with both the longitudinal steel bar 2 and the spacer ring 1, and is also fixed by welding after completion. The inner wall of the semi-ring 242 is snapped against the outer wall of the longitudinal steel bar 2 and fixed by welding. It should be noted that the inner arc angle of the semi-ring 242 is 185-195°. The semi-ring 242 can be installed on the outside of the longitudinal steel bar 2 by snapping, and it also has stability before welding, which facilitates the subsequent welding operation.
[0036] The spacing between the two semi-rings 32 is adapted to the semi-ring 42. The semi-rings 32 and 42 are fixed to the same longitudinal steel bar 2. The semi-ring 42 is located between the two semi-rings 32. The semi-rings 32 and 42 are also fixed by welding. The oblique steel bar 5 and oblique steel bar 6 are fixed to two different longitudinal steel bars 2 respectively.
[0037] The implementation principle of a high-strength hollow square pile according to an embodiment of this application is as follows: Multiple longitudinal reinforcing bars 2 and multiple spacer rings 1 are taken, and the longitudinal reinforcing bars 2 are assembled by passing them through the spacer rings 1 and then welded to form the steel structure framework of the foundation. Multiple pairs of reinforcing members 1 3 and 2 4 are installed on the longitudinal reinforcing bars 2. Then, the lengths are measured and the oblique reinforcing bars 1 5 and 2 6 are cut. A circular hole 1 51 is drilled at the end of the oblique reinforcing bar 1 5, and a circular hole 2 61 is drilled at the end of the oblique reinforcing bar 2 6.
[0038] Then, the inclined steel bar 5 is sleeved on the outside of the round rod 33 through the round hole 51, and the other end of the inclined steel bar 5 is rotated to the position of contact with the spacer ring 1 and spot welded; the inclined steel bar 6 is sleeved on the outside of the round rod 43 through the round hole 61, and the other end of the inclined steel bar 6 is rotated to the position of contact with the spacer ring 1 and spot welded.
[0039] Welding is performed on all connections of the steel structure, including between semi-ring 32 and longitudinal reinforcement 2, between semi-ring 42 and longitudinal reinforcement 2, between semi-ring 32 and semi-ring 42, the contact points at both ends of inclined reinforcement 5, and the contact points at both ends of inclined reinforcement 6. After welding, a complete steel structure frame is formed. This steel structure frame is then placed in a mold for concrete pouring, thus producing the hollow square pile.
[0040] In summary, the use of inclined steel bars 5 and 6 forms a stable triangular structure between the spacer ring 1 and the longitudinal steel bar 2, significantly improving the stability and torsional resistance of the steel structure frame, thereby enhancing the overall torsional resistance of the hollow square pile. Furthermore, the installation of reinforcing members 3 and 4, as well as inclined steel bars 5 and 6, is relatively simple, and drilling holes in the steel bars is easy, making the entire assembly process convenient and quick.
[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A high-strength hollow square pile comprising a concrete body (10), a plurality of steel partition rings (1), and a plurality of longitudinal steel bars (2) disposed through the partition rings (1), characterized in that: It also includes multiple reinforcing members 1 (3) and 2 (4). The reinforcing member 1 (3) includes an integrally fixed block 1 (31) and two half-rings 1 (32). Two inclined steel bars 1 (5) are fixed on the block 1 (31). The other end of the inclined steel bar 1 (5) is fixed to the longitudinal steel bar (2) near the partition ring (1). The reinforcing member 2 (4) includes an integrally fixed block 2 (41) and a half-ring 2 (42). Two inclined steel bars 2 (6) are fixed on the block 2 (41). The other end of the inclined steel bar 2 (6) is fixed to the longitudinal steel bar (2) near the partition ring (1). The half-ring 1 (32) and half-ring 2 (42) are fixed to the same longitudinal steel bar (2). The half-ring 2 (42) is located between the two half-rings 1 (32). The inclined steel bars 1 (5) and inclined steel bars 2 (6) are respectively fixed to two different longitudinal steel bars (2).
2. A high-strength hollow square pile according to claim 1, characterized in that: The inner wall of the semi-ring (32) is snapped and attached to the outer wall of the longitudinal steel bar (2) and fixed by welding.
3. A high-strength hollow square pile according to claim 2, characterized in that: The inner wall of the second semi-ring (42) is snapped and attached to the outer wall of the longitudinal steel bar (2) and fixed by welding. The first semi-ring (32) and the second semi-ring (42) are also fixed by welding.
4. The high-strength hollow square pile according to claim 1, characterized in that: The block (31) is fixed with two round rods (33), and the end of the inclined steel bar (5) is provided with a round hole (51) through which the round rod (33) passes.
5. The high-strength hollow square pile according to claim 1, characterized in that: The block 2 (41) is fixed with two round rods 2 (43), and the end of the inclined steel bar 2 (6) is provided with a round hole 2 (61) for the round rods 2 (43) to pass through.
6. A high-strength hollow square pile according to claim 4, characterized in that: After the block 1 (31) and the inclined steel bar 1 (5) are installed, they are fixed by welding.
7. A high-strength hollow square pile according to claim 5, characterized in that: After the second block (41) and the second inclined steel bar (6) are installed, they are fixed by welding.
8. A high-strength hollow square pile according to claim 1, characterized in that: The spacer ring (1) has a positioning hole (11) for the longitudinal steel bar (2) to pass through, and the spacer ring (1) has multiple hollow holes (12) through it.