A type of rust-resistant reinforced concrete pile

Abstract

This utility model provides a rust-resistant reinforced concrete pile, including a composite steel cage, a concrete structure, and a pile head. The composite steel cage has a top annular end plate and a bottom annular end plate fixedly installed at both ends. The overall design of this utility model allows the connection between the pile head and the bottom annular end plate to be directly cast into the concrete structure. This prevents corrosion at the connection between the pile head and the bottom annular end plate when installed in a humid environment, thereby improving the overall service life.

Description

Technical Field

[0001] This utility model relates to the field of building structures, and in particular to a rust-resistant reinforced concrete pile. Background Technology

[0002] Reinforced concrete piles are a type of foundation component widely used in civil engineering. They are composed of a steel reinforcement cage and concrete and serve to support engineering structures such as buildings, bridges, and docks by transferring the load of the superstructure to the deep soil or rock strata.

[0003] However, existing reinforced concrete piles typically use welding to connect the pile head to the pile end plate, leaving the weld points directly exposed to the outside. As a result, when installed in a high-humidity environment, the weld points are prone to significant corrosion, which affects the overall strength and service life.

[0004] Therefore, it is essential to invent a rust-resistant reinforced concrete pile. Utility Model Content

[0005] To solve the above-mentioned technical problems, the present invention provides a technical solution for a rust-resistant reinforced concrete pile: a rust-resistant reinforced concrete pile, comprising a composite steel cage, a concrete structure and a pile head, wherein: a top annular end plate and a bottom annular end plate are respectively fixedly installed at both ends of the composite steel cage; A connecting ring is coaxially fixedly installed at the top of the pile head. The connecting ring is inserted inside the bottom annular end plate and is fixedly connected to the bottom annular end plate. The length of the connecting ring is greater than the thickness of the bottom annular end plate, and the excess part of the connecting ring is in the composite steel cage. The steel cage, the top annular end plate, the bottom annular end plate, and the connection between the connecting ring and the bottom annular end plate are all cast in concrete structure. The bolt holes on the upper surface of the top annular end plate are exposed outside the concrete structure.

[0006] The composite steel cage includes main steel bars, ring steel bars, and stirrups. Several main steel bars are provided, and the two ends of each main steel bar are fixedly connected to the corresponding top ring end plate and bottom ring end plate, respectively. Several ring steel bars are evenly fixedly installed on the inner side of each main steel bar, and stirrups are fixedly installed in a spiral shape on the outer side of each main steel bar.

[0007] The outer surfaces of the main reinforcing bars, ring reinforcing bars, and stirrups are sequentially provided with an anti-corrosion coating, a rubber layer, and a stainless steel sleeve from the inside out.

[0008] The outer surface of the stainless steel sleeve is uniformly provided with several integrated annular protrusions.

[0009] Both the top and bottom annular end plates have connection holes corresponding to the main reinforcing bars.

[0010] The bottom annular end plate has several connecting holes evenly distributed throughout its surface, and the connecting holes are fixedly connected to the pile head.

[0011] A conical pile tip is coaxially fixedly installed at the bottom of the pile head. Several right-angle reinforcing teeth are evenly fixedly installed between the conical pile tip and the pile head. The inclined surfaces of the right-angle reinforcing teeth face outward. Several bolt rods corresponding to the second connection hole are evenly fixedly installed at the top of the pile head. One end of each bolt rod passes through the corresponding second connection hole and is threaded with a nut. The end of the bolt rod with the nut and the nut are both cast into the concrete structure.

[0012] Compared with the prior art, the advantages of this utility model are: The overall design of this utility model allows the connection between the pile head and the bottom annular end plate to be directly cast into the concrete structure. This prevents corrosion of the connection between the pile head and the bottom annular end plate when installed in a humid environment, thereby improving the overall service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the pile head, bottom annular end plate, and composite steel cage structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the exploded structure of the pile head and bottom annular end plate of this utility model.

[0016] Figure 4 This is a schematic diagram of the composite steel cage structure of this utility model.

[0017] Figure 5 This is a schematic diagram of the main steel reinforcement structure of this utility model.

[0018] In the picture: 1. Main reinforcement bar 2. Ring reinforcement bar 3. Stirrup 4. Top ring end plate 5. Bottom ring end plate 6. Connecting hole 61. Connecting hole two 62. Pile head 7. Conical pile tip 71. Right angle reinforcing tooth 72. Connecting ring 73. Bolt rod 74. Nut 75. Anti-corrosion coating 8. Rubber layer 9. Stainless steel sleeve 10. Ring protrusion 11. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0021] The present invention will be further described below with reference to the accompanying drawings: Example Reference Figure 1-5 A type of rust-resistant reinforced concrete pile includes a composite steel cage, a concrete structure 1, and a pile head 7, wherein: a top annular end plate 5 and a bottom annular end plate 6 are fixedly installed at both ends of the composite steel cage. Specifically, a connecting ring 73 is coaxially fixedly installed at the top of the pile head 7. The connecting ring 73 is inserted into the bottom annular end plate 6 and welded to the bottom annular end plate 6. The length of the connecting ring 73 is greater than the thickness of the bottom annular end plate 6. The excess part of the connecting ring 73 is placed in the composite steel cage so that the connecting ring 73 can be better integrated with the concrete structure 1. The outer surface of the pile head 7 is treated with anti-corrosion, such as by spraying epoxy resin coating (dry film thickness 350μm). Specifically, a rubber sealing gasket can be installed between the pile head 7 and the bottom annular end plate 6 to further improve the sealing of the connection and prevent moisture or liquid from entering the interior of the anti-corrosion reinforced concrete pile from the bottom annular end plate 6. Specifically, the steel cage, the top annular end plate 5, the bottom annular end plate 6, and the connection between the connecting ring 73 and the bottom annular end plate 6 are all cast in the concrete structure 1 in order to cover the weld between the bottom annular end plate 6 and the connecting ring 73, so as to prevent the weld from being directly exposed to the air and thus prevent it from being corroded. Specifically, the bolt holes on the upper surface of the top annular end plate 5 are exposed outside the concrete structure 1 for connection with other components.

[0022] Specifically, the composite steel cage includes main steel bars 2, ring steel bars 3 and stirrups 4. There are several main steel bars 2. The two ends of each main steel bar 2 are fixedly connected to the corresponding top ring end plate 5 and bottom ring end plate 6 respectively. Several ring steel bars 3 are evenly fixedly installed on the inner side between each main steel bar 2. Stirrups 4 are fixedly installed in a spiral shape on the outer side between each main steel bar 2.

[0023] Specifically, the outer surfaces of the main reinforcing bars 2, the ring reinforcing bars 3, and the stirrups 4 are sequentially provided with an anti-corrosion coating 8, a rubber layer 9, and a stainless steel sleeve 10 from the inside out. Through the setting of the rubber layer 9, when the stainless steel sleeve 10 is combined with the main reinforcing bars 2, the ring reinforcing bars 3, and the stirrups 4 in the form of a sleeve, it can prevent the stainless steel sleeve 10 from causing wear to the anti-corrosion coating 8, thereby improving the overall corrosion resistance of the main reinforcing bars 2, the ring reinforcing bars 3, and the stirrups 4. By installing the stainless steel sleeve 10, not only can the overall corrosion resistance be improved, but also when pouring the concrete structure 1, the concrete structure 1 can be prevented from damaging the anti-corrosion coating 8 and the rubber layer 9, thereby protecting the anti-corrosion coating 8 and the rubber layer 9. The anti-corrosion coating 8 uses epoxy resin coating (dry film thickness 200μm to 350μm).

[0024] Specifically, the outer surface of the stainless steel sleeve 10 is uniformly provided with several integrated annular protrusions 11. By setting the annular protrusions 1, the contact area with the concrete structure 1 can be increased, thereby improving the overall strength after bonding.

[0025] Specifically, the top annular end plate 5 and the bottom annular end plate 6 are both provided with connection holes 61 corresponding to the main reinforcing bars 2, so that both ends of the main reinforcing bars 2 can be inserted into the connection holes 61 for fixing.

[0026] Specifically, several connecting holes 62 are evenly provided on the surface of the bottom annular end plate 6, and the connecting holes 62 are fixedly connected to the pile head 7.

[0027] Specifically, a conical pile tip 71 is coaxially fixedly installed at the bottom of the pile head 7. Several right-angle reinforcing teeth 72 are evenly fixedly installed between the conical pile tip 71 and the pile head 7, with the inclined surface of the right-angle reinforcing teeth 72 facing outward. Several bolt rods 74 corresponding to the connecting hole 62 are evenly fixedly installed at the top of the pile head 7. One end of each bolt rod 74 passes through the corresponding connecting hole 62 and is threaded with a nut 75. The end of the bolt rod 74 with the nut 75 and the nut 75 are both cast in the concrete structure 1. Through the setting of the bolt rods 74 and nuts 75, when the bottom annular end plate 6 and the connecting ring 73 are not welded, the pile head 7 can be connected to the bottom annular end plate 6, and displacement during welding can be prevented. At the same time, the stability between the pile head 7 and the bottom annular end plate 6 is improved.

[0028] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A rust-resistant reinforced concrete pile, characterized in that: It includes a composite steel cage, a concrete structure (1) and a pile head (7), wherein: the two ends of the composite steel cage are respectively fixedly installed with a top annular end plate (5) and a bottom annular end plate (6). A connecting ring (73) is coaxially fixedly installed at the top of the pile head (7). The connecting ring (73) is inserted into the bottom annular end plate (6) and fixedly connected to the bottom annular end plate (6). The length of the connecting ring (73) is greater than the thickness of the bottom annular end plate (6). The excess part of the connecting ring (73) is in the composite steel cage. The steel cage, the top annular end plate (5), the bottom annular end plate (6), and the connection between the connecting ring (73) and the bottom annular end plate (6) are all cast in the concrete structure (1). The bolt holes on the upper end face of the top annular end plate (5) are exposed outside the concrete structure (1).

2. The anti-corrosion reinforced concrete pile as described in claim 1, characterized in that: The composite steel cage includes main steel bars (2), ring steel bars (3) and stirrups (4). There are several main steel bars (2). The two ends of each main steel bar (2) are fixedly connected to the corresponding top ring end plate (5) and bottom ring end plate (6). Several ring steel bars (3) are evenly fixedly installed on the inner side of each main steel bar (2). Stirrups (4) are fixedly installed in a spiral shape on the outer side of each main steel bar (2).

3. The anti-corrosion reinforced concrete pile as described in claim 2, characterized in that: The outer surfaces of the main steel bar (2), the ring steel bar (3) and the stirrups (4) are provided with an anti-corrosion coating (8), a rubber layer (9) and a stainless steel sleeve (10) from the inside to the outside.

4. A corrosion-resistant reinforced concrete pile as described in claim 3, characterized in that: The outer surface of the stainless steel sleeve (10) is uniformly provided with several integral annular protrusions (11).

5. A rust-resistant reinforced concrete pile as described in claim 1, characterized in that: Both the top annular end plate (5) and the bottom annular end plate (6) have connection holes (61) corresponding to the main reinforcing bars (2) on their surfaces.

6. A rust-resistant reinforced concrete pile as described in claim 5, characterized in that: The bottom annular end plate (6) has several connecting holes (62) evenly distributed throughout its surface, and the connecting holes (62) are fixedly connected to the pile head (7).

7. A corrosion-resistant reinforced concrete pile as described in claim 6, characterized in that: A conical pile tip (71) is coaxially fixedly installed at the bottom of the pile head (7). Several right-angle reinforcing teeth (72) are uniformly fixedly installed between the conical pile tip (71) and the pile head (7). The inclined surface of the right-angle reinforcing teeth (72) faces outward. Several bolt rods (74) corresponding to the second connection hole (62) are uniformly fixedly installed at the top of the pile head (7). One end of each bolt rod (74) passes through the corresponding second connection hole (62) and is threaded with a nut (75). The end of the bolt rod (74) with the nut (75) and the nut (75) are both cast in the concrete structure (1).

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