A bending-resistant reinforcing device for a concrete pipe pile

By setting high-strength steel flexural plates and bending columns at the joint of concrete pipe piles to form a ring structure, the bending resistance problem at the joint of pipe piles is solved, thereby improving bending performance and construction efficiency.

CN224299946UActive Publication Date: 2026-05-29JIANGSU FANGYUAN PILING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU FANGYUAN PILING CO LTD
Filing Date
2025-07-10
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The lack of specialized bending reinforcement structures at existing concrete pipe pile connections makes them prone to stress concentration and fracture risks when subjected to lateral loads.

Method used

The first and second anti-flexure plates, made of high-strength steel, form a ring structure with the anti-bending column. The sleeve and the fixed ring are quickly assembled and stably connected by the fastening method of the plug-in block and the fixing bolt, which disperses and transmits bending stress.

Benefits of technology

It significantly improves the bending resistance of pipe piles, reduces the risk of fracture, and enhances construction efficiency and structural stability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224299946U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of bending-resistant reinforcing devices of concrete pipe pile, it is related to pipe pile bending-resistant technical field, including first pipe pile, second pipe pile, the second pipe pile is fixedly connected at the top of first pipe pile, fixed ring is fixedly sleeved on the first pipe pile, the sleeve ring is sleeved on the second pipe pile, the bottom of the sleeve ring is fixedly connected with the sleeve of the sleeve of second pipe pile, the sleeve and fixed ring are connected by two fixed mechanisms, the top of the fixed ring is sequentially fixedly connected with multiple bending-resistant columns in circumference, the bottom of the sleeve is provided with multiple holes grooves in circumference, each the bending-resistant column is inserted in a hole groove. The utility model significantly improves the bending-resistant performance of pipe pile, effectively reduces the risk of fracture, while improving construction efficiency, ensuring structural stability.
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Description

Technical Field

[0001] This utility model relates to the field of pipe pile bending resistance technology, and in particular to a bending resistance enhancement device for concrete pipe piles. Background Technology

[0002] In modern construction engineering, concrete pipe piles, as key components of foundation load-bearing structures, are widely used in bridges, high-rise buildings, and marine engineering. With the continuous expansion of infrastructure construction, higher requirements are placed on the load-bearing capacity and bending resistance of pipe piles, especially in complex conditions such as earthquake-prone areas or soft soil foundations, where the bending resistance of pipe pile joints directly affects the safety and durability of the overall structure.

[0003] Existing pipe pile connection technologies mostly employ simple welding or sleeve methods, lacking specialized bending-resistant reinforcement structures. This leads to stress concentration at the connection points when the pipe piles are subjected to lateral loads, which in turn increases the risk of fracture. Therefore, there is an urgent need for a new type of bending-resistant reinforcement device to improve the overall performance of pipe piles. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a bending-strengthening device for concrete pipe piles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A bending resistance enhancement device for concrete pipe piles includes a first pipe pile and a second pipe pile. The second pipe pile is fixedly connected to the top of the first pipe pile. A fixing ring is fixedly sleeved on the first pipe pile, and a collar is sleeved on the second pipe pile. A sleeve that fits into the second pipe pile is fixedly connected to the bottom of the collar. The sleeve and the fixing ring are connected by two fixing mechanisms. Multiple bending resistance columns are sequentially fixedly connected to the top circumference of the fixing ring. Multiple slots are opened in the bottom circumference of the sleeve, and each bending resistance column is inserted into one slot.

[0007] As a further improvement of this utility model, the fixing mechanism includes a plug block fixedly connected to the top of the fixing ring, a fixing frame fixedly connected to the outer side wall of the sleeve, the plug block being inserted into the inside of the fixing frame, and a fixing bolt being provided on one side of the fixing frame, the fixing bolt passing through the fixing frame and being screwed to the plug block.

[0008] As a further improvement of this utility model, the sleeve is provided with a plurality of second anti-bending plates fixedly connected to the collar in the inner circumference, and the top of the fixed ring is fixedly connected with a plurality of first anti-bending plates in the circumference near the first pipe pile. The plurality of first anti-bending plates and the plurality of second anti-bending plates together form a ring shape.

[0009] As a further improvement of this utility model, the internal size of each of the holes and slots matches the size of each bending-resistant column.

[0010] As a further improvement of this utility model, the fixing ring is fixedly connected to the first pipe pile by welding or bolts, and the inner diameter of the fixing ring matches the outer diameter of the first pipe pile.

[0011] As a further improvement of this utility model, each of the first flexural plate and each of the second flexural plate are the same size.

[0012] The beneficial effects of this utility model are:

[0013] By setting up a first and a second flexural plate (both made of high-strength steel Q), together with the first and second pipe piles, a complete annular anti-bending structure is formed, which can effectively disperse and transfer bending stress, significantly improve the overall bending performance of the pipe pile, and reduce the risk of fracture caused by external forces.

[0014] The device adopts a fastening connection method of plug-in blocks and fixing bolts, and combined with the vertical positioning design of the anti-bending column and the slot, it realizes the rapid assembly and stable connection of the sleeve and the fixing ring. At the same time, the structure is simple and the installation is convenient, which not only ensures the stability of the anti-bending structure, but also improves the construction efficiency.

[0015] This invention significantly improves the bending resistance of pipe piles, effectively reduces the risk of fracture, and at the same time improves construction efficiency and ensures structural stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a bending-resistant reinforcement device for concrete pipe piles proposed in this utility model.

[0017] Figure 2 This is a schematic diagram showing the partial separation of components of a bending-resistant reinforcement device for concrete pipe piles proposed in this utility model.

[0018] Figure 3 This is a partial cross-sectional structural diagram from a top view of the bending resistance enhancement device for concrete pipe piles proposed in this utility model.

[0019] In the figure: 1 First pipe pile, 2 Second pipe pile, 3 Fixing ring, 4 Loop ring, 5 Fixing block, 6 Fixing frame, 7 Fixing bolt, 8 Insertion block, 9 Bending column, 10 First bending plate, 11 Bending sleeve, 12 Second bending plate, 13 Sleeve, 14 Hole groove. Detailed Implementation

[0020] 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.

[0021] Figures 1-3 A bending-resistant reinforcement device for concrete pipe piles includes a first pipe pile 1 and a second pipe pile 2. The second pipe pile 2 is fixedly connected to the top of the first pipe pile 1. The first pipe pile 1 and the second pipe pile 2 are connected by welding. A fixing ring 3 is fixedly sleeved on the first pipe pile 1. The fixing ring 3 is used to connect the first pipe pile 1 and provide an installation foundation. The fixing ring 3 and the first pipe pile 1 are fixedly connected by welding or bolts. The inner diameter of the fixing ring 3 matches the outer diameter of the first pipe pile 1. A collar 4 is sleeved on the second pipe pile 2. The bottom of the collar 4 is fixedly connected to a sleeve 13 that fits onto the second pipe pile 2. The collar 4 is used for support. The sleeve 13 transmits the force of the second pipe pile 2. The thickness of the sleeve 13 is less than that of the collar 4 so that the collar 4 can provide additional installation space. The inner circumference of the sleeve 13 is provided with a plurality of second anti-bending plates 12 that are fixedly connected to the collar 4. The top of the fixing ring 3 is circumferentially fixedly connected with a plurality of first anti-bending plates 10 near the first pipe pile 1. The first anti-bending plates 10 and the second anti-bending plates 12 are both made of high-strength steel Q355. Each first anti-bending plate 10 and each second anti-bending plate 12 are the same size. The plurality of first anti-bending plates 10 and the plurality of second anti-bending plates 12 together form a ring shape, forming a complete anti-bending structure.

[0022] The sleeve 13 and the fixed ring 3 are connected by two fixing mechanisms. The fixing mechanism includes a plug block 8 fixedly connected to the top of the fixed ring 3, and a fixing frame 6 fixedly connected to the outer wall of the sleeve 13. The fixing frame 6 is used to accommodate the plug block 8. The plug block 8 is inserted into the inside of the fixing frame 6. A fixing bolt 7 is provided on one side of the fixing frame 6. The fixing bolt 7 passes through the fixing frame 6 and is screwed to the plug block 8. The fixing bolt 7 achieves a tight connection between the plug block 8 and the fixing frame 6.

[0023] Multiple anti-bending columns 9 are sequentially fixedly connected to the top circumference of the fixed ring 3. The anti-bending columns 9 are used to transfer and disperse bending stress. Multiple slots 14 are opened in the bottom circumference of the sleeve 13. The slots 14 are used to accommodate the anti-bending columns 9 to achieve vertical positioning. The internal size of each slot 14 matches the size of each anti-bending column 9 to ensure that the anti-bending column 9 and the slot 14 fit tightly. Each anti-bending column 9 is inserted into a slot 14. The material of the anti-bending column 9 is high-strength steel Q355.

[0024] In use, the fixing ring 3 is first fixed to the first pipe pile 1 by welding or bolting, so that the first anti-bending plate 10 and the fixing ring 3 together form the anti-bending support structure on the upper part of the first pipe pile 1; then the second pipe pile 2 is welded and fixed to the top of the first pipe pile 1. At this time, the collar 4 and sleeve 13, which have been pre-welded as a whole, are directly sleeved on the second pipe pile 2, so that the second anti-bending plate 12 and sleeve 13 form an integral structure; then the slot 14 at the bottom of the sleeve 13 is aligned with the anti-bending column 9 at the top of the fixing ring 3 and inserted. The sleeve 13 and the fixing ring 3 are fastened together by the plug block 8 in the fixing frame 6 and the fixing bolt 7. At this time, the first anti-bending plate 10 and the second anti-bending plate 12 together form a ring-shaped anti-bending structure; when the pipe pile is subjected to bending force, the first anti-bending plate 10, the second anti-bending plate 12 and the anti-bending column 9, made of high-strength steel Q355, work together to share the stress, effectively improving the overall bending resistance of the pipe pile and preventing breakage.

[0025] 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 bending-resistant reinforcement device for concrete pipe piles, comprising a first pipe pile (1) and a second pipe pile (2), characterized in that, The second pipe pile (2) is fixedly connected to the top of the first pipe pile (1). A fixing ring (3) is fixedly sleeved on the first pipe pile (1). A collar (4) is sleeved on the second pipe pile (2). A sleeve (13) that is sleeved with the second pipe pile (2) is fixedly connected to the bottom of the collar (4). The sleeve (13) and the fixing ring (3) are connected by two fixing mechanisms. Multiple anti-bending columns (9) are fixedly connected to the top of the fixing ring (3) in sequence. Multiple holes (14) are opened in the bottom of the sleeve (13) in the circumferential direction. Each anti-bending column (9) is inserted into a hole (14).

2. The bending resistance enhancement device for concrete pipe piles according to claim 1, characterized in that, The fixing mechanism includes a plug block (8) fixedly connected to the top of the fixing ring (3), a fixing frame (6) fixedly connected to the outer side wall of the sleeve (13), the plug block (8) being inserted into the inside of the fixing frame (6), a fixing bolt (7) being provided on one side of the fixing frame (6), the fixing bolt (7) passing through the fixing frame (6) and being screwed to the plug block (8).

3. The bending resistance enhancement device for concrete pipe piles according to claim 1, characterized in that, The sleeve (13) is provided with a plurality of second anti-bending plates (12) fixedly connected to the collar (4) in the inner circumference. The top of the fixed ring (3) is fixedly connected with a plurality of first anti-bending plates (10) in the circumference near the first pipe pile (1). The plurality of first anti-bending plates (10) and the plurality of second anti-bending plates (12) together form a ring.

4. The bending resistance enhancement device for concrete pipe piles according to claim 1, characterized in that, The internal size of each of the aforementioned slots (14) matches the size of each bending column (9).

5. The bending resistance enhancement device for concrete pipe piles according to claim 1, characterized in that, The fixing ring (3) is fixedly connected to the first pipe pile (1) by welding or bolts, and the inner diameter of the fixing ring (3) matches the outer diameter of the first pipe pile (1).

6. The bending resistance enhancement device for concrete pipe piles according to claim 3, characterized in that, Each of the first flexural plate (10) and each of the second flexural plate (12) are the same size.