Anti-fracture structure for concrete prefabricated pipe pile

Abstract

The utility model relates to the technical field of prefabricated pipe piles, in particular to an anti-fracture structure for a concrete prefabricated pipe pile. Comprising two tubular piles and an embracing plate tightly sleeved outside a butt joint seam of the two tubular piles, the embracing plate is provided with a reinforcing piece for improving the strength of the butt joint end of the two tubular piles, and the reinforcing piece comprises a clamping plate clamped on the butt joint end of the two tubular piles and a buckle plate integrally buckled on the inner wall of the butt joint end of the two tubular piles with the clamping plate. The reinforcing structure has the advantages that the contact area of the inner wall face and the outer wall face of the butt-joint end of the two pipe piles is increased through the reinforcing pieces, the fracture resistance of the butt-joint position is improved, and the possibility of dislocation of the butt-joint pipe piles is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated pipe piles, in particular to an anti-fracture structure for concrete prefabricated pipe piles. Background Art

[0002] Pipe piles are usually used in large-scale construction. Generally, pipe piles are prefabricated in factories and then transported to construction sites for construction. The production process of prefabricated concrete pipe piles is steel cage binding, mold placement, concrete pouring, tensioning, centrifugal forming, steam curing and demoulding. During construction, two pipe piles need to be docked. The commonly used methods for pipe pile docking are welding and flange bolt connection. In the above methods, since the two pipe piles are flatly docked, the fracture resistance of the connection using welding rods or flange bolts is poor. It is easy to cause the docking point to break due to the radial squeezing force of the soil in the foundation on the pipe pile at different depths, causing the upper and lower pipe piles to be misaligned, reducing the support of the pipe piles. Summary of the invention

[0003] The technical problem to be solved by the utility model is that pipe piles are usually used in large-scale construction. Generally, pipe piles are prefabricated in factories and then transported to construction sites for construction. The production process of prefabricated concrete pipe piles is steel cage binding, mold placement, concrete pouring, tensioning, centrifugal forming, steam curing and demoulding. During construction, two pipe piles need to be docked. The commonly used methods for docking pipe piles are welding and flange bolt connection. In the above methods, since the two pipe piles are flatly docked, the fracture resistance of the connection using welding rods or flange bolts is poor. It is easy to cause the docking point to break due to the radial extrusion force of the soil in the foundation on the pipe pile at different depths, causing the upper and lower pipe piles to be misaligned, reducing the support of the pipe piles.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is: an anti-fracture structure for prefabricated concrete pipe piles, comprising two pipe piles and a holding plate tightly sleeved on the outside of the butt joint of the two pipe piles, the holding plate is provided with a reinforcing member for improving the strength of the butt ends of the two pipe piles, the reinforcing member comprises a clamping plate clamped on the butt ends of the two pipe piles and a buckle plate integrally buckled with the clamping plate on the inner wall of the butt ends of the two pipe piles.

[0005] The beneficial effects of the utility model are as follows: the reinforcing member is used to increase the contact area with the inner and outer wall surfaces at the butt ends of the two pipe piles, thereby improving the fracture resistance of the butt joint and reducing the possibility of misalignment of the butt joint pipe piles.

[0006] The utility model further improves the technical solution adopted as follows: a plurality of mounting holes 1 are evenly opened in the inner wall of the holding plate, a plurality of mounting holes 2 are evenly opened in the inner wall of the gusset plate, a plurality of through holes docking with the mounting holes 2 are radially opened on the clamping plate, a bolt is inserted in each of the mounting holes 1, the inner ends of the bolts pass through the through holes and the mounting holes 2 in turn, and a gasket and two nuts are sleeved on the inner ends of the bolts.

[0007] The beneficial effect of the above improvement is: the holding plate and the gusset plate are fixed together by bolts, washers and two nuts, so that the holding plate and the gusset plate are fastened to each other on the corresponding wall surface of the butted pipe pile, thereby strengthening the connection between the holding plate, the gusset plate and the pipe pile.

[0008] The utility model further improves the technical solution adopted as follows: a plurality of connecting rods are inserted at equal distances on the upper and lower ends of the holding plate, and the upper and lower connecting rods are integrally provided with extension rings sleeved outside the corresponding pipe piles.

[0009] The beneficial effects of the above improvements are: extending the length of the contact surface with the pipe pile and improving the connection strength of the pipe pile joint.

[0010] As a further improvement of the utility model, the technical problem to be solved is: how to improve the fracture resistance and capacity of the holding plate and the gusset plate.

[0011] In order to solve the above technical problems, the utility model further improves the technical solution adopted as follows: the outer surface of the holding plate is evenly provided with a plurality of outer ribs, and the inner surface of the gusset plate is evenly provided with a plurality of inner ribs.

[0012] The beneficial effect of the above improvement is: using external reinforcement and internal reinforcement to improve the strength of the holding plate and the buckle plate to resist the squeezing force of the soil on the pipe piles, and further improving the fracture resistance of the pipe pile joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a structural diagram of the reinforcing member in the utility model.

[0015] The text markings in the figure are as follows: 1. pipe pile; 2. holding plate; 3. extension ring; 4. connecting rod; 5. buckle plate; 6. external reinforcement; 7. internal reinforcement; 8. splint; 9. bolt; 10. gasket; 11. nut. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0017] Embodiment 1:

[0018] like Figure 1-2As shown, a fracture prevention structure 1 for prefabricated concrete pipe piles comprises two pipe piles 1 and a holding plate 2 which is tightly sleeved on the outside of the butt joint of the two pipe piles 1. A butt steel plate sleeve is prefabricated outside the butt end of the pipe pile 1. The holding plate 2 can be welded and reinforced with a welding rod and the surface of the butt steel plate sleeve. A reinforcing member for improving the strength of the butt end of the two pipe piles 1 is provided on the holding plate 2. The reinforcing member comprises a clamping plate 8 clamped on the butt ends of the two pipe piles 1 and a buckle plate 5 which is buckled integrally with the clamping plate 8 and is buckled on the inner wall of the butt ends of the two pipe piles 1. A plurality of mounting holes 1 are uniformly opened in the inner wall of the holding plate 2, a plurality of mounting holes 2 are uniformly opened in the inner wall of the buckle plate 5, a plurality of through holes which are butt-jointed with the mounting holes 2 are radially opened on the clamping plate 8, a bolt 9 is inserted in each mounting hole 1, the inner end of the bolt 9 passes through the through hole and the mounting hole 2 in sequence, and a gasket 10 and two nuts 11 are sleeved on the inner end of the bolt 9. A plurality of connecting rods 4 are inserted at equal distances at the upper and lower ends of the holding plate 2, and the upper and lower connecting rods 4 are integrally provided with an extension ring 3 sleeved outside the corresponding pipe pile 1. A plurality of external ribs 6 are evenly arranged on the outer surface of the holding plate 2, and a plurality of internal ribs 7 are evenly arranged on the inner surface of the buckle plate 5.

[0019] The reinforcement is used to increase the contact area between the inner and outer walls of the butt ends of the two pipe piles 1, improve the fracture resistance of the butt joint, and reduce the possibility of misalignment of the butt pile 1. Bolts 9, washers 10 and two nuts 11 are used to fix the holding plate 2 and the gusset plate 5 together, so that the holding plate 2 and the gusset plate 5 are mutually buckled on the corresponding wall surface of the butt pile 1, and the connection between the holding plate 2 and the gusset plate 5 and the pipe pile 1 is strengthened. The length of the contact surface with the pipe pile 1 is extended to improve the connection strength of the butt joint of the pipe pile 1. The outer ribs 6 and the inner ribs 7 are used to increase the strength of the holding plate 2 and the gusset plate 5 to resist the squeezing force of the soil on the pipe pile 1, and further improve the fracture resistance of the butt joint of the pipe pile 1.

[0020] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0021] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. An anti-fracture structure for prefabricated concrete pipe piles, characterized in that: The invention comprises two pipe piles (1) and a holding plate (2) which is tightly sleeved on the outside of the butt joint of the two pipe piles (1); the holding plate (2) is provided with a reinforcing member for improving the strength of the butt ends of the two pipe piles (1); the reinforcing member comprises a clamping plate (8) clamped on the butt ends of the two pipe piles (1) and a buckle plate (5) which is integrally buckled with the clamping plate (8) and buckled on the inner wall of the butt ends of the two pipe piles (1).

2. The anti-fracture structure for prefabricated concrete pipe piles according to claim 1, characterized in that: The inner wall of the holding plate (2) is evenly provided with a plurality of mounting holes 1, the inner wall of the buckle plate (5) is evenly provided with a plurality of mounting holes 2, the clamping plate (8) is radially provided with a plurality of through holes connected with the mounting holes 2, each of the mounting holes 1 is inserted with a bolt (9), the inner end of the bolt (9) passes through the through hole and the mounting hole 2 in sequence, and the inner end of the bolt (9) is sleeved with a gasket (10) and two nuts (11).

3. The anti-fracture structure for prefabricated concrete pipe piles according to claim 2, characterized in that: A plurality of connecting rods (4) are inserted at equal distances at the upper and lower ends of the holding plate (2), and the upper and lower connecting rods (4) are integrally provided with extension rings (3) sleeved outside the corresponding pipe piles (1).

4. The anti-fracture structure for prefabricated concrete pipe piles according to claim 3, characterized in that: The outer surface of the holding plate (2) is evenly provided with a plurality of outer ribs (6), and the inner surface of the gusset plate (5) is evenly provided with a plurality of inner ribs (7).

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