High durability reinforced pipe pile

Abstract

This utility model relates to the field of building construction materials technology and discloses a high-durability reinforced pipe pile, including a reinforced pipe pile body. The outer surface of the reinforced pipe pile body is coated with an epoxy zinc-rich primer, the outer surface of the epoxy zinc-rich primer is coated with a glass flake anti-corrosion paint, and the outer surface of the glass flake anti-corrosion paint is coated with a polyurethane topcoat. This high-durability reinforced pipe pile, by setting the epoxy zinc-rich primer, glass flake anti-corrosion paint, and polyurethane topcoat, can form a comprehensive, multi-layered protection for the reinforced pipe pile body. The zinc powder in the epoxy zinc-rich primer can provide cathodic protection for the pipe pile surface. The glass flake anti-corrosion paint, with its excellent shielding performance, effectively blocks the penetration of moisture, oxygen, and corrosive ions. The polyurethane topcoat, with its excellent weather resistance, wear resistance, and chemical corrosion resistance, protects the inner anti-corrosion coating, significantly improving the corrosion resistance of the reinforced pipe pile body and significantly extending its service life.

Description

Technical Field

[0001] This utility model relates to the field of building construction materials technology, specifically to a reinforced pipe pile with high durability. Background Technology

[0002] Pipe piles are a commonly used material in foundation construction of building engineering and are widely used in various construction projects.

[0003] However, the common pipe piles currently available on the market have significant shortcomings in terms of durability. The complex environment in which buildings are located means that pipe piles are subject to continuous erosion by groundwater, dynamic changes in soil pH, and repeated external loads. Under these conditions, the concrete part of the pipe pile is prone to cracking, and the internal steel bars are also prone to corrosion. Cracked concrete weakens the overall strength of the pipe pile, while corrosion of the steel bars directly reduces its load-bearing capacity. These problems greatly shorten the service life of the pipe piles. Once the performance of the pipe piles deteriorates, it poses a serious threat to the stability and safety of the entire building structure, and the subsequent maintenance costs also increase significantly.

[0004] In view of this, in order to effectively solve the above problems and reduce the long-term maintenance costs of building projects, we provide a reinforced pipe pile with high durability. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a reinforced pipe pile with high durability to solve the problems of concrete cracking and steel corrosion in existing ordinary pipe piles during long-term use, as mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a high-durability reinforced pipe pile, comprising a reinforced pipe pile body, wherein the outer surface of the reinforced pipe pile body is coated with an epoxy zinc-rich primer;

[0009] The outer surface of the epoxy zinc-rich primer is coated with glass flake anti-corrosion paint, and the outer surface of the glass flake anti-corrosion paint is coated with polyurethane topcoat.

[0010] Preferably, the interior of the reinforced pipe pile body is provided with high-strength spiral stirrups, which are integrally formed with the reinforced pipe pile body by casting.

[0011] Preferably, the inner side of the high-strength spiral stirrup is provided with a plurality of high-strength steel bars, which are fixed to the high-strength spiral stirrup by binding and welding.

[0012] Preferably, the outer surface of the high-strength steel bar is coated with epoxy resin paint, and sealing end plates are provided at the top and bottom of the reinforced pipe pile body.

[0013] Preferably, the sealing end plate is fixed to the reinforced pipe pile body by welding, and the connection between the sealing end plate and the reinforced pipe pile body is filled with high-performance sealant.

[0014] Preferably, protective sleeves are provided on both sides of the reinforced pipe pile body, the protective sleeves are wrapped around the outside of the sealing end plate, and the protective sleeves are fixed to the reinforced pipe pile body by welding.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This high-durability reinforced pipe pile, through the application of epoxy zinc-rich primer, glass flake anti-corrosion paint and polyurethane topcoat, can form a comprehensive and multi-layered protection for the reinforced pipe pile body. The zinc powder in the epoxy zinc-rich primer can play a cathodic protection role on the surface of the pipe pile. The glass flake anti-corrosion paint, with its good shielding performance, effectively blocks the penetration of moisture, oxygen and corrosive ions. The polyurethane topcoat, with its excellent weather resistance, wear resistance and chemical corrosion resistance, protects the inner anti-corrosion coating, greatly improving the corrosion resistance of the reinforced pipe pile body and significantly extending its service life.

[0017] 2. This high-durability reinforced pipe pile enhances the integrity of the steel reinforcement cage and the shear resistance of the pipe pile by setting high-strength spiral stirrups. The high-strength steel reinforcement provides the main load-bearing capacity of the pipe pile, while the epoxy resin coating protects the steel reinforcement from corrosion. The sealing end plate, high-performance sealant, and protective sleeve work together to prevent the ends from being impacted and corroded, ensuring the stability of the internal structure of the pipe pile. This greatly improves the structural stability and durability of the reinforced pipe pile, enabling it to better adapt to complex and harsh working environments. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the reinforced pipe pile of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the sealing end plate of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the protective sleeve of this utility model;

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the high-strength spiral stirrup of this utility model;

[0023] Figure 6This is a magnified structural diagram showing a partial detail of the high-strength steel bar of this utility model.

[0024] In the diagram: 1. Reinforced pipe pile body; 2. Epoxy zinc-rich primer; 3. Glass flake anti-corrosion paint; 4. Polyurethane topcoat; 5. High-strength spiral stirrups; 6. High-strength steel bars; 7. Epoxy resin coating; 8. Sealing end plate; 9. Protective sleeve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 - Figure 6 This utility model provides a technical solution: a high-durability reinforced pipe pile, including a reinforced pipe pile body 1, the outer surface of which is coated with an epoxy zinc-rich primer 2;

[0027] The outer surface of the epoxy zinc-rich primer 2 is coated with glass flake anti-corrosion paint 3, and the outer surface of the glass flake anti-corrosion paint 3 is coated with polyurethane topcoat 4. The reinforcing steel frame is placed in the pipe pile mold, and high-strength prestressed concrete is poured. Centrifugation and vibration processes are used to ensure the concrete is uniformly compacted. Before the concrete initially sets, a special micropore-forming process, such as adding air-entraining agents, is used to form tiny closed pores inside the concrete. After the concrete is poured, steam curing is performed to improve the strength and performance of the pipe pile. After the pipe pile is cured, its outer surface is ground to remove surface laitance and impurities. Then, epoxy zinc-rich primer 2, glass flake anti-corrosion paint 3, and polyurethane topcoat 4 are applied sequentially. The epoxy zinc-rich primer 2, rich in zinc powder, can form on the surface of the pipe pile. Cathodic protection prioritizes corrosion of the pipe pile body, effectively slowing down the erosion process. Glass flake anti-corrosion paint 3 is applied over epoxy zinc-rich primer 2. The glass flakes inside have a good shielding effect, greatly increasing the path of corrosive media such as moisture, oxygen, and corrosive ions to the pipe pile body and significantly reducing their penetration rate. The outermost polyurethane topcoat 4 has excellent weather resistance, abrasion resistance, and chemical corrosion resistance, resisting damage to the internal anti-corrosion coating from ultraviolet rays, wind, rain, and chemicals in the external environment. At the same time, it makes the surface of the pipe pile smoother, reducing friction when in contact with soil, further protecting the pipe pile from external erosion. During the coating process, the thickness and construction quality of each coating layer are strictly controlled to ensure uniform coating and no missed areas.

[0028] The reinforced pipe pile body 1 is internally equipped with high-strength spiral stirrups 5, which are integrally formed with the reinforced pipe pile body 1 through casting. Several high-strength steel bars 6 are arranged inside the high-strength spiral stirrups 5, and are fixed to the high-strength spiral stirrups 5 by binding and welding. The outer surface of the high-strength steel bars 6 is coated with epoxy resin paint 7. Sealing end plates 8 are provided at the top and bottom of the reinforced pipe pile body 1, and are fixed to the reinforced pipe pile body 1 by welding. The connection between the sealing end plates 8 and the reinforced pipe pile body 1 is filled with high-performance sealant. Protective sleeves 9 are provided on both sides of the reinforced pipe pile body 1, wrapping around the outer side of the sealing end plates 8, and are fixed to the reinforced pipe pile body 1 by welding. During the processing of the reinforced pipe pile body 1, the steel reinforcement skeleton is first processed according to the design requirements, and the high-strength steel bars 6 coated with epoxy resin paint 7 and the transverse high-strength steel bars are then integrated. Spiral stirrups 5 are tied and welded. The outer surface of the high-strength steel bars 6 is coated with epoxy resin coating 7, forming an isolation film that separates the steel bars from the surrounding concrete and potentially corrosive media, effectively preventing corrosion and ensuring the strength and performance of the steel bars. This maintains the overall load-bearing capacity of the pipe pile and forms a stable steel skeleton structure. Sealing end plates 8 are welded to both ends of the pipe pile. After welding, flaw detection is performed to ensure the quality of the weld. Then, high-performance sealant is filled at the connection between the sealing end plates 8 and the pipe pile body. This prevents groundwater, soil moisture, and corrosive substances from seeping into the pipe pile end, protecting the steel bars and concrete inside the pipe pile from corrosion. After filling, a protective sleeve 9 is welded, which not only further enhances the sealing of the end but also prevents the sealing end plates 8 from being damaged by impact and mechanical damage, ensuring the integrity and stability of the end sealing structure and improving the durability of the reinforced pipe pile body 1.

[0029] Working principle: In the processing of the reinforced pipe pile body 1, the steel reinforcement cage is first processed according to the design requirements. High-strength steel bars 6 coated with epoxy resin 7 and transverse high-strength spiral stirrups 5 are tied and welded. The epoxy resin 7 coating on the outer surface of the high-strength steel bars 6 forms an isolation film, separating the steel bars from the surrounding concrete and potentially corrosive media, effectively preventing corrosion and ensuring the strength and performance of the steel bars. This maintains the overall bearing capacity of the pipe pile, forming a stable steel reinforcement cage structure. Then, the steel reinforcement cage is placed into the pipe pile mold, and high-strength prestressed concrete is poured. Processes such as compaction and vibration ensure uniform and dense concrete. Before initial setting, a special micropore-forming process, such as adding air-entraining agents, is used to create tiny closed pores within the concrete. After concrete pouring, steam curing is performed to improve the strength and performance of the pipe piles. After curing, the outer surface of the pipe piles is ground to remove surface laitance and impurities. Then, epoxy zinc-rich primer 2, glass flake anti-corrosion paint 3, and polyurethane topcoat 4 are applied sequentially. The epoxy zinc-rich primer 2, rich in zinc powder, forms cathodic protection on the surface of the pipe pile, preferentially preventing corrosion of the pipe pile body and effectively delaying the corrosion of the main body. During the erosion process, glass flake anti-corrosion paint 3 is applied over epoxy zinc-rich primer 2. The glass flakes inside provide excellent shielding, significantly increasing the path of corrosive media such as moisture, oxygen, and corrosive ions to the main body of the pipe pile, and significantly reducing their penetration rate. The outermost polyurethane topcoat 4 possesses excellent weather resistance, abrasion resistance, and chemical corrosion resistance, resisting damage to the internal anti-corrosion coating from external environmental factors such as ultraviolet rays, wind, rain, and chemicals. It also makes the surface of the pipe pile smoother, reducing friction when in contact with soil, further protecting the pipe pile from external erosion. During the coating process, strict control is maintained over each step. The thickness and construction quality of the coating layer are carefully controlled to ensure uniform coating without any omissions. Sealing end plates 8 are welded to both ends of the pipe pile. After welding, flaw detection is performed to ensure the quality of the weld. Then, high-performance sealant is filled at the connection between the sealing end plate 8 and the pipe pile body. This prevents groundwater, soil moisture, and corrosive substances from seeping into the pipe pile end, protecting the steel bars and concrete inside the pipe pile from corrosion. After filling, a protective sleeve 9 is welded, which not only further enhances the sealing performance of the end but also prevents the sealing end plate 8 from being damaged by impact and mechanical damage, ensuring the integrity and stability of the end sealing structure and improving the durability of the reinforced pipe pile body 1.

[0030] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A reinforced pipe pile having high durability, comprising a reinforced pipe pile main body (1), characterized by: The outer surface of the reinforced pipe pile body (1) is coated with epoxy zinc-rich primer (2); The outer surface of the epoxy zinc-rich primer (2) is coated with glass flake anti-corrosion paint (3), and the outer surface of the glass flake anti-corrosion paint (3) is coated with polyurethane topcoat (4).

2. The high-durability reinforced pipe pile according to claim 1, characterized in that: The interior of the reinforced pipe pile body (1) is provided with high-strength spiral stirrups (5), and the high-strength spiral stirrups (5) and the reinforced pipe pile body (1) are integrated by casting.

3. The high-durability reinforced pipe pile according to claim 2, characterized in that: The inner side of the high-strength spiral stirrup (5) is provided with several high-strength steel bars (6), and the high-strength steel bars (6) and the high-strength spiral stirrup (5) are fixed by binding and welding.

4. The high-durability reinforced pipe pile according to claim 3, characterized in that: The outer surface of the high-strength steel bar (6) is coated with epoxy resin coating (7), and the top and bottom ends of the reinforced pipe pile body (1) are provided with sealing end plates (8).

5. A high-durability reinforced pipe pile according to claim 4, characterized in that: The sealing end plate (8) is fixed to the reinforced pipe pile body (1) by welding, and the connection between the sealing end plate (8) and the reinforced pipe pile body (1) is filled with high-performance sealant.

6. A high-durability reinforced pipe pile according to claim 5, characterized in that: The reinforced pipe pile body (1) is provided with protective sleeves (9) on both sides. The protective sleeves (9) are wrapped around the outside of the sealing end plate (8). The protective sleeves (9) are fixed to the reinforced pipe pile body (1) by welding.

Images