Assembly type box culvert with good load bearing effect

Abstract

The utility model discloses an assembly type box culvert with good bearing effect, which comprises a box culvert and a pipeline interface arranged on one side of the box culvert, a horizontal support plate is symmetrically embedded on one side of the box culvert close to the pipeline interface, a longitudinal support plate is fixed between the horizontal support plates, the longitudinal support plate is symmetrically arranged on both sides of the pipeline interface, a plurality of inclined support plates are evenly fixed between the horizontal support plates and the longitudinal support plates, and the inclined support plates, the horizontal support plates and the longitudinal support plates cooperatively form a triangular structure. Through the above structure, the horizontal support plate is embedded on one side of the box culvert close to the pipeline interface, the longitudinal support plate is welded between the horizontal support plates, and the inclined support plate steel mesh is evenly welded between the horizontal support plate and the longitudinal support plate, so that a stable triangular support structure is formed, the bending resistance and the shearing resistance of the box culvert with a notch are improved, the bearing capacity of the box culvert is improved, and the problem of the decrease of the bearing capacity caused by the through hole in the box culvert is avoided.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated box culvert technology, and in particular to a prefabricated box culvert with good load-bearing capacity. Background Technology

[0002] Box culverts are a commonly used precast concrete structure in bridge, tunnel, and culvert engineering projects, offering advantages such as high load-bearing capacity and convenient construction. Precast assembled box culverts, as an innovative construction technology, possess unique advantages and promising application prospects.

[0003] In the prior art, a search revealed a Chinese patent entitled "A Prefabricated Box Culvert with Good Load-Bearing Capacity," application number "202420299828.0." This patent mainly includes: a box culvert body, with at least one integrally formed pipe interface on the side of the box culvert body communicating with the outside and the inner cavity of the box culvert; a steel mesh frame inside the box culvert body; and a foot pedal device on the side wall of the inner cavity of the box culvert body. This invention provides additional support to the foot pedal assembly by setting a support part at the bottom of the pedal assembly, with the support part, pedal assembly, and wall forming a triangular structure. While this patent provides additional support to the pedal assembly itself and ensures that even when carrying heavy tools up and down the stairs, it does not place excessive burden on the support arm, avoiding the risk of downward bending deformation or even breakage of the support arm, thus improving the stability and load-bearing capacity of the entire staircase. However, the aforementioned box culvert has through holes forming pipe connection ports. Due to the setting of pipe connection ports, the effective load-bearing cross-sectional area of ​​the box culvert is reduced; and the lack of a reinforcing structure leads to a decrease in the bending stiffness of the box culvert top slab, forming a shear weak zone, which may cause the performance of the box culvert's load-bearing structure to deteriorate. Therefore, this utility model provides a prefabricated box culvert with good load-bearing capacity to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to provide a prefabricated box culvert with good load-bearing capacity. A transverse support plate is embedded in the side of the box culvert near the pipe interface, and a longitudinal support plate is welded between them. Diagonal support plate steel mesh is evenly welded between the two to form a stable triangular support structure, which improves the bending and shear resistance of the box culvert at the notch, which is conducive to improving the load-bearing capacity of the box culvert and avoids the problem of load-bearing capacity reduction caused by opening through holes inside.

[0005] To achieve the above objectives, a prefabricated box culvert with good load-bearing capacity is provided, including a box culvert and a pipe interface on one side of the box culvert. Horizontal support plates are symmetrically embedded inside the box culvert and on the side near the pipe interface. Longitudinal support plates are fixed between the horizontal support plates. The longitudinal support plates are symmetrically arranged on both sides of the pipe interface. Multiple inclined support plates are evenly fixed between the horizontal and longitudinal support plates. The inclined support plates, the horizontal support plates, and the longitudinal support plates cooperate to form a triangular structure.

[0006] According to the prefabricated box culvert with good load-bearing capacity, the transverse support plate is a corrugated steel plate, and the longitudinal support plate and the diagonal support plate are both steel mesh.

[0007] According to the prefabricated box culvert with good load-bearing capacity, the top and bottom of the box culvert are provided with arc-shaped parts to form an arch structure.

[0008] According to the prefabricated box culvert with good load-bearing capacity, the box culvert is provided with reinforcing ribs on its inner side and at its four corners, and the reinforcing ribs are integrally formed with the box culvert.

[0009] According to the prefabricated box culvert with good load-bearing capacity, the top side of the box culvert is symmetrically provided with grooves, and the grooves are provided with lifting rings.

[0010] According to the prefabricated box culvert with good load-bearing capacity, both sides of the box culvert are fixed with sealing waterstops, and the sealing waterstops are made of rubber.

[0011] According to the prefabricated box culvert with good load-bearing capacity, the bottom of the box culvert is provided with a cushion layer, and the cushion layer is designed with a trapezoidal structure.

[0012] This utility model has the following beneficial effects:

[0013] 1. Compared with existing technologies, a transverse support plate is embedded on the side of the box culvert near the pipe interface, and a longitudinal support plate is welded between them. The two are evenly welded with diagonal support plate steel mesh to form a stable triangular support structure, which improves the bending and shear resistance of the box culvert at the notch, which helps to improve the load-bearing capacity of the box culvert and avoids the problem of load-bearing capacity reduction caused by opening through holes inside.

[0014] 2. Compared with existing technologies, the box culvert has reinforcing ribs on its inner side and at the four corners, which are cast integrally with the box culvert body to prevent cracks caused by stress concentration; the top and bottom of the box culvert are provided with arc sections to form an arch structure, which transforms the load into axial pressure and makes the stress distribution more uniform; the sealing waterstops on both sides of the box culvert are formed into a waterproof layer by hot-melt welding, and the compression deformation of the sealing waterstops meets the sealing requirements, which can prevent leakage at the joints. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a first-view structural schematic diagram of a prefabricated box culvert with good load-bearing capacity according to the present invention.

[0017] Figure 2 This is a second-view structural diagram of a prefabricated box culvert with good load-bearing capacity according to the present invention.

[0018] Figure 3 This is a cross-sectional view of one side of the prefabricated box culvert with good load-bearing capacity according to the present invention.

[0019] Figure 4 This is a cross-sectional view of one side of a prefabricated box culvert with good load-bearing capacity according to the present invention.

[0020] Legend:

[0021] 1. Box culvert; 2. Pipe joint; 3. Horizontal support plate; 4. Longitudinal support plate; 5. Diagonal support plate; 6. Reinforcing rib; 7. Arc section; 8. Subbase; 9. Sealing waterstop; 10. Lifting ring. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Reference Figure 1-4 This utility model provides a prefabricated box culvert with good load-bearing capacity, which includes a box culvert 1 and a pipe interface 2 located on one side of the box culvert 1. A transverse support plate 3 is symmetrically embedded inside the box culvert 1 and on the side close to the pipe interface 2. A longitudinal support plate 4 is fixed between the transverse support plates 3. The longitudinal support plates 4 are symmetrically located on both sides of the pipe interface 2. A plurality of oblique support plates 5 are evenly fixed between the transverse support plates 3 and the longitudinal support plates 4. The oblique support plates 5, the transverse support plates 3 and the longitudinal support plates 4 cooperate to form a triangular structure.

[0024] A transverse support plate 3 is embedded inside the box culvert 1 on the side near the pipe interface 2, and a longitudinal support plate 4 is welded between them. An inclined support plate 5 steel mesh is evenly welded between the two to form a stable triangular support structure. This improves the bending and shear resistance of the box culvert 1 at the notch, which helps to improve the load-bearing capacity of the box culvert 1 and avoids the problem of reduced load-bearing capacity caused by opening through holes inside.

[0025] The transverse support plate 3 is a corrugated steel plate, while the longitudinal support plate 4 and the diagonal support plate 5 are both steel mesh. The transverse support plate 3 and the box culvert 1 are installed by corrugated steel plate and concrete casting. The longitudinal support plate 4 is formed by pre-embedding steel mesh in the concrete. The diagonal support plate 5 is connected to the longitudinal support plate 4 and cast as a whole, which improves the load-bearing capacity and durability of the box culvert 1.

[0026] Reinforcing ribs 6 are provided on the inner side of box culvert 1 at the four corners, and are integrally cast with the box culvert body to prevent cracks caused by stress concentration. Symmetrical grooves are provided on the top side of box culvert 1, and lifting rings 10 are installed inside the grooves. The lifting rings 10 are cast inside box culvert 1 for easy transportation and installation, while avoiding exposed lifting points. The reinforcing ribs 6, lifting rings 10, and box culvert 1 are integrally formed.

[0027] Both sides of the box culvert 1 are fixed with sealing waterstops 9. The sealing waterstops 9 are made of rubber and are formed into a waterproof layer by hot melt welding. The compression deformation of the sealing waterstops 9 meets the sealing requirements and prevents leakage at the joints.

[0028] The top and bottom of the box culvert 1 are both equipped with arc sections 7 to form an arched structure. The arched structure transforms the load into axial pressure, resulting in a more uniform stress distribution. The bottom of the box culvert 1 is equipped with a foundation layer 8, which is designed as a trapezoidal structure. The foundation layer 8 is formed by crushed stone and is compacted before backfilling to ensure the stability of the box culvert 1.

[0029] Working principle: A transverse support plate 3 is embedded in the side of the box culvert 1 near the pipe interface 2, and a longitudinal support plate 4 is welded between them. A diagonal support plate 5 steel mesh is evenly welded between the two to form a stable triangular support structure, which improves the bending and shear resistance of the box culvert 1 at the notch, which is conducive to improving the load-bearing capacity of the box culvert 1 and avoids the problem of reduced load-bearing capacity due to the opening of through holes inside.

[0030] Furthermore, the inner side of the box culvert 1 and the four corners are provided with reinforcing ribs 6, which are integrally cast with the box culvert body to prevent cracks caused by stress concentration; the top and bottom of the box culvert 1 are provided with arc-shaped parts 7 to form an arch structure, which transforms the load into axial pressure and makes the stress distribution more uniform; the sealing waterstops 9 on both sides of the box culvert 1 are formed into a waterproof layer by hot-melt welding, and the compression deformation of the sealing waterstops 9 meets the sealing requirements, which can prevent leakage at the joint.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A prefabricated box culvert with good load-bearing capacity, characterized in that, The system includes a box culvert (1) and a pipe interface (2) located on one side of the box culvert (1). A transverse support plate (3) is symmetrically embedded inside the box culvert (1) and on the side near the pipe interface (2). A longitudinal support plate (4) is fixed between the transverse support plates (3). The longitudinal support plates (4) are symmetrically located on both sides of the pipe interface (2). A plurality of oblique support plates (5) are uniformly fixed between the transverse support plates (3) and the longitudinal support plates (4). The oblique support plates (5), the transverse support plates (3), and the longitudinal support plates (4) cooperate to form a triangular structure.

2. The prefabricated box culvert with good load-bearing capacity according to claim 1, characterized in that, The transverse support plate (3) is a corrugated steel plate, and the longitudinal support plate (4) and the diagonal support plate (5) are both steel mesh.

3. The prefabricated box culvert with good load-bearing capacity according to claim 2, characterized in that, The box culvert (1) has arc-shaped sections (7) at the top and bottom to form an arch structure.

4. A prefabricated box culvert with good load-bearing capacity according to claim 3, characterized in that, The box culvert (1) has reinforcing ribs (6) on its inner side and at its four corners. The reinforcing ribs (6) are integrally formed with the box culvert (1).

5. A prefabricated box culvert with good load-bearing capacity according to claim 4, characterized in that, The box culvert (1) has symmetrical grooves on its top side, and a lifting ring (10) is provided inside the groove.

6. A prefabricated box culvert with good load-bearing capacity according to claim 5, characterized in that, Both sides of the box culvert (1) are fixed with sealing waterstops (9), which are made of rubber.

7. A prefabricated box culvert with good load-bearing capacity according to claim 6, characterized in that, The bottom of the box culvert (1) is provided with a cushion layer (8), which is a trapezoidal structure.

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