High prestressed steel cylinder concrete culvert

Abstract

The utility model relates to municipal works pipeline technical field discloses a kind of high prestressed steel cylinder concrete culvert pipe, including first steel cylinder body, the inner wall of first steel cylinder body is provided with limiting component, the outer wall of limiting component is provided with wire rack, the outer wall of wire rack is fixedly connected with concrete culvert pipe body, the inner wall of concrete culvert pipe body is fixedly connected in the inner wall of first steel cylinder body, the inner wall of first steel cylinder body is fixedly connected with connecting strip, the inner wall of connecting strip is fixedly connected in concrete culvert pipe body, limiting component includes limiting strip, the inner wall of limiting strip is fixedly connected in the inner wall of first steel cylinder body.In the utility model, first steel cylinder body and internal concrete culvert pipe body are formed firm mechanical interlock by limiting component and connecting strip, further prevent interface peeling, steel cylinder contraction force is evenly transmitted to concrete, and then the crack resistance of concrete is enhanced, and the overall durability and security are improved.

Description

Technical Field

[0001] This utility model relates to the field of municipal engineering pipeline technology, and in particular to a high prestressed steel cylinder concrete culvert. Background Technology

[0002] Concrete culverts are tubular structures made of concrete, commonly used in infrastructure fields such as drainage, irrigation, and transportation engineering. With their excellent mechanical properties, durability, and relatively low cost, they play crucial roles in various projects, such as transporting water and providing passageways, and are an indispensable component ensuring the normal operation of these projects.

[0003] In practical engineering applications, due to the varying performance requirements of culverts in different environments, and the need for culverts to withstand various loads and complex environmental factors over long periods, extremely high requirements are placed on the structural strength, crack resistance, and durability of concrete culverts. Traditional concrete culverts have problems with insufficient interfacial bonding and mechanical interlocking force at the connection between the steel cylinder and the internal concrete culvert. This leads to easy delamination between the steel cylinder and the concrete interface during long-term use, and the shrinkage force of the steel cylinder cannot be evenly transferred to the concrete, thus affecting the crack resistance of the concrete culvert, reducing the overall structural durability and safety, shortening the service life of the culvert, and increasing engineering maintenance costs and potential risks. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a high-prestressed steel cylinder concrete culvert, which aims to improve the traditional concrete culvert, where there are insufficient interfacial bonding and mechanical interlocking forces in the connection between the steel cylinder and the internal concrete culvert.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-prestressed steel cylinder concrete culvert, comprising a first steel cylinder body, a limiting component provided on the inner wall of the first steel cylinder body, a wire frame provided on the outer wall of the limiting component, a concrete culvert body fixedly connected to the outer wall of the wire frame, the outer wall of the concrete culvert body fixedly connected to the inner wall of the first steel cylinder body, a connecting strip fixedly connected to the inner wall of the first steel cylinder body, and the outer wall of the connecting strip fixedly connected to the interior of the concrete culvert body.

[0006] Preferably, the limiting component includes a limiting strip, the outer wall of which is fixedly connected to the inner wall of the first steel cylinder body, and a limiting block is fixedly connected to the outer wall of the limiting strip.

[0007] Preferably, the outer wall of the wire frame is fixedly connected to the outer wall of the limiting strip and the limiting block, respectively.

[0008] Preferably, the outer walls of the limiting strip and the limiting block are both fixedly connected to the inside of the concrete culvert body.

[0009] Preferably, a second steel cylinder body is slidably connected to the inner wall of the first steel cylinder body.

[0010] Preferably, a connecting block is fixedly connected to the outer wall of the second steel cylinder body.

[0011] Preferably, the outer wall of the docking block is slidably connected to the inside of the first steel cylinder body.

[0012] Preferably, the inner wall of the first steel cylinder body is provided with a docking groove, and the outer wall of the docking block is slidably connected to the inner wall of the docking groove.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the first steel cylinder body and the inner concrete culvert body are mechanically interlocked by the limiting component and the connecting strip. The connecting strip significantly increases the bonding force and mechanical interlocking force between the first steel cylinder body and the concrete culvert body by assisting anchoring and strengthening the connection between the interface of the first steel cylinder body and the concrete culvert body, thereby further preventing interface peeling. The shrinkage force of the steel cylinder is evenly transmitted to the concrete, thereby enhancing the crack resistance of the concrete and improving the durability and safety of the overall structure.

[0015] 2. In this invention, the cooperation between the connecting block on the second steel cylinder body and the connecting groove inside the first steel cylinder body enables rapid and accurate alignment of adjacent pipe sections, greatly improving installation efficiency. Simultaneously, the constraint of the connecting groove on the movement trajectory of the connecting block reduces the risk of radial detachment of the second steel cylinder body and its connected adjacent pipe sections, enhancing structural stability. Attached Figure Description

[0016] Figure 1 This is a perspective view of a high-prestressed steel cylinder concrete culvert proposed in this utility model.

[0017] Figure 2 This is a partial structural diagram of the connecting block of a high prestressed steel cylinder concrete culvert proposed in this utility model.

[0018] Figure 3 This is a partial structural diagram of the concrete culvert body of a high prestressed steel cylinder concrete culvert proposed in this utility model.

[0019] Figure 4 This is a partial structural diagram of the wire frame for a high-prestressed steel cylinder concrete culvert proposed in this utility model.

[0020] Legend:

[0021] 1. First steel cylinder body; 2. Limiting strip; 3. Limiting block; 4. Connecting strip; 5. Steel wire frame; 6. Concrete culvert body; 7. Second steel cylinder body; 8. Connecting block; 9. Connecting groove. Detailed Implementation

[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Reference Figure 1 , Figure 2 and Figure 3 The present invention provides an embodiment of a high prestressed steel cylinder concrete culvert, comprising a first steel cylinder body 1, a limiting component provided on the inner wall of the first steel cylinder body 1, a steel wire frame 5 provided on the outer wall of the limiting component, a concrete culvert body 6 fixedly connected to the outer wall of the steel wire frame 5, the outer wall of the concrete culvert body 6 fixedly connected to the inner wall of the first steel cylinder body 1, a connecting strip 4 fixedly connected to the inner wall of the first steel cylinder body 1, and the outer wall of the connecting strip 4 fixedly connected to the inside of the concrete culvert body 6.

[0024] Specifically, the first steel cylinder body 1, as the outer load-bearing shell, provides the main structural support, constrains the internal concrete, and applies prestress, thereby giving the culvert high strength and rigidity. The steel wire frame 5 is set on the outer wall of the limiting component and wrapped by the concrete culvert body 6, which enhances the tensile strength of the concrete and effectively limits the generation and development of cracks in the concrete culvert body 6, improving the overall durability. The concrete culvert body 6 is the main supporting part and serves as the inner wall of the pipe, bearing the internal fluid pressure, transmitting loads, and supporting the main structure. The connecting strip 4 assists in anchoring and strengthens the interface connection between the first steel cylinder body 1 and the concrete culvert body 6, thereby significantly increasing the adhesion and mechanical interlocking force between the first steel cylinder body 1 and the concrete culvert body 6, further preventing interface peeling, ensuring the two materials work together, and improving the overall structural integrity.

[0025] Reference Figure 1 , Figure 2 and Figure 3 The limiting component includes a limiting strip 2, the outer wall of which is fixedly connected to the inner wall of the first steel cylinder body 1, and a limiting block 3 is fixedly connected to the outer wall of the limiting strip 2; the outer wall of the wire frame 5 is fixedly connected to the outer walls of the limiting strip 2 and the limiting block 3 respectively; the outer walls of the limiting strip 2 and the limiting block 3 are both fixedly connected to the inside of the concrete culvert body 6.

[0026] Specifically, the limiting strip 2 serves to support and fix the limiting block 3. The limiting strip 2 and the limiting block 3 work together to limit the wire frame 5, thereby ensuring that the wire frame 5 is accurately positioned and firmly fixed during the pouring process. This increases the contact and interlocking area between the first steel cylinder body 1 and the concrete culvert body 6, preventing relative slippage or peeling between the two under prestress or service load.

[0027] Reference Figure 1 , Figure 2 and Figure 4 The inner wall of the first steel cylinder body 1 is slidably connected to the second steel cylinder body 7; the outer wall of the second steel cylinder body 7 is fixedly connected to the docking block 8; the outer wall of the docking block 8 is slidably connected to the inside of the first steel cylinder body 1; the inner wall of the first steel cylinder body 1 is provided with a docking groove 9, and the outer wall of the docking block 8 is slidably connected to the inner wall of the docking groove 9.

[0028] Specifically, the second steel cylinder body 7 serves to support and fix the docking block 8. The docking block 8, through its cooperation with the docking groove 9 opened inside the first steel cylinder body 1, can ensure that adjacent pipe sections are quickly and accurately aligned, and also improve installation efficiency. The docking groove 9 serves to constrain the movement trajectory of the docking block 8, which can greatly reduce the risk of the second steel cylinder body 7 and the entire adjacent pipe section connected to it being radially dislodged.

[0029] Working principle: The first steel cylinder body 1 serves as the outer pressure-bearing and restraining shell, and the concrete culvert body 6 formed inside it serves as the inner structure. The inner wall of the first steel cylinder body 1 is pre-set with a limiting component consisting of limiting strips 2 and limiting blocks 3. Before the concrete is poured, the wire frame 5 is placed on the outer wall of the limiting component consisting of limiting strips 2 and limiting blocks 3. The wire frame 5 is embedded in the subsequently poured concrete, which enhances the tensile strength of the concrete. The connecting strip 4 is also pre-fixed on the inner wall of the first steel cylinder body 1 and will be embedded in the interior of the concrete culvert body 6.

[0030] The first steel cylinder body 1 forms a firm mechanical interlock with the internal concrete culvert body 6 through the limiting assembly composed of limiting strip 2 and limiting block 3 and the connecting strip 4. The contraction force of the steel cylinder will be continuously and evenly transmitted to the concrete culvert body 6, so that it is in a radially compressed state. The steel wire frame 5 is also tensioned under this prestress, which further enhances the crack resistance of the concrete.

[0031] During installation, the connecting block 8 of the second steel cylinder body 7 is inserted into the connecting groove 9 of the first steel cylinder body 1. The connecting block 8 can slide in the inner wall of the connecting groove 9. With the cooperation of the connecting groove 9 and the connecting block 8, it can be ensured that adjacent pipe sections are quickly and accurately aligned.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-prestressed steel cylinder concrete culvert, comprising a first steel cylinder body (1), characterized in that: The inner wall of the first steel cylinder body (1) is provided with a limiting component, and the outer wall of the limiting component is provided with a wire frame (5). The outer wall of the wire frame (5) is fixedly connected to a concrete culvert body (6). The outer wall of the concrete culvert body (6) is fixedly connected to the inner wall of the first steel cylinder body (1). The inner wall of the first steel cylinder body (1) is fixedly connected to a connecting strip (4), and the outer wall of the connecting strip (4) is fixedly connected to the inside of the concrete culvert body (6).

2. The high-prestressed steel cylinder concrete culvert according to claim 1, characterized in that: The limiting component includes a limiting strip (2), the outer wall of which is fixedly connected to the inner wall of the first steel cylinder body (1), and a limiting block (3) is fixedly connected to the outer wall of the limiting strip (2).

3. A high-prestressed steel cylinder concrete culvert according to claim 1, characterized in that: The outer wall of the wire frame (5) is fixedly connected to the outer wall of the limiting strip (2) and the limiting block (3).

4. A high-prestressed steel cylinder concrete culvert according to claim 2, characterized in that: The outer walls of the limiting strip (2) and the limiting block (3) are fixedly connected to the inside of the concrete culvert body (6).

5. A high-prestressed steel cylinder concrete culvert according to claim 1, characterized in that: The inner wall of the first steel cylinder body (1) is slidably connected to the second steel cylinder body (7).

6. A high-prestressed steel cylinder concrete culvert according to claim 5, characterized in that: The outer wall of the second steel cylinder body (7) is fixedly connected to a connecting block (8).

7. A high-prestressed steel cylinder concrete culvert according to claim 6, characterized in that: The outer wall of the docking block (8) is slidably connected to the inside of the first steel cylinder body (1).

8. A high-prestressed steel cylinder concrete culvert according to claim 7, characterized in that: The inner wall of the first steel cylinder body (1) is provided with a docking groove (9), and the outer wall of the docking block (8) is slidably connected to the inner wall of the docking groove (9).

Images