BIM (Building Information Modeling)-based foldable vertical bridge frame direct-burying device and construction method thereof

Abstract

The invention discloses a BIM (Building Information Modeling)-based foldable vertical bridge frame direct-burying device and a construction method thereof. The BIM-based foldable vertical bridge frame direct-burying device comprises a direct-burying device box body and upper and lower layer connecting sheets, the upper-layer connecting piece and the lower-layer connecting piece are hinged to the corresponding edges of the direct-buried device box body through rotating parts, and when the upper-layer connecting piece and the lower-layer connecting piece are overturned towards one side of the inner side of the direct-buried device box body, the upper-layer connecting piece and the lower-layer connecting piece serve as a top plate and a bottom plate of the direct-buried device box body respectively; when the device is connected with the upper-layer bridge frame and the lower-layer bridge frame, the connecting pieces turn over towards the outer side of the direct-buried device box body and form a vertical extending state. According to the vertical bridge frame direct burial device, the bendable main body structure frame is made of the high-strength galvanized steel sheet, so that the corrosion resistance and the structural strength are ensured; meanwhile, the foldable connecting piece structure can be turned over in the designated direction according to the process steps, concrete forming and subsequent butt joint of the upper bridge and the lower bridge in the vertical direction are assisted, vertical penetrating is achieved, and the problem that a traditional reserved hole cannot adapt to continuous installation of the bridges is effectively solved.

Description

Technical Field

[0001] This invention relates to the field of pre-embedded electrical wells and casings in building engineering, and particularly to a BIM-based foldable vertical cable tray direct-embedding device and its construction method. Background Technology

[0002] In recent years, with the acceleration of urbanization, high-rise buildings have gradually increased in number. The construction of electrical and communication shafts in high-rise buildings has attracted widespread attention.

[0003] Traditional pre-embedded casing for plumbing wells has the following problems: 1. High complexity of procedures: It requires multiple procedures such as pre-positioning → formwork support → hole pre-reservation → cable tray installation → suspended hole formwork → concrete pouring → curing. The connection between each link is easily affected by cross-construction interference, and coordination is difficult. 2. High proportion of wet work: The sealing process relies on wet work such as on-site concrete mixing and plastering, which not only increases labor costs, but also creates a dirty and messy construction environment, which can easily cause cement slurry to contaminate the strong and weak current well chambers, making subsequent cleaning difficult; 3. Limited construction efficiency: Secondary sealing requires waiting for the cable tray to be installed and the maintenance period is long, which leads to the overall construction progress of the water and heating well being delayed, especially in projects with tight schedules. 4. Quality hazards are difficult to avoid: If the sealing of the reserved holes is not tight enough, it is easy to form a seepage channel, which will lead to water leakage in the well chamber; and the position of the reserved holes in densely packed cable trays is easy to deviate, resulting in the cable trays being installed crookedly and with uneven spacing, which not only affects the aesthetics, but also increases the difficulty of subsequent cable laying and maintenance, and may even cause structural safety problems due to concentrated profits.

[0004] Based on the above-mentioned technical problems, those skilled in the art urgently need to develop a BIM-based foldable vertical cable tray direct burial device and its construction method. Summary of the Invention

[0005] The purpose of this invention is to provide a BIM-based foldable vertical cable tray direct-buried device and its construction method. This vertical cable tray direct-buried device uses a high-strength galvanized steel plate to make a bendable main structural frame, ensuring corrosion resistance and structural strength. At the same time, the foldable connecting plate structure can be folded in a specified direction according to the process steps, assisting in concrete molding and subsequent vertical docking of upper and lower cable trays to achieve vertical continuity, effectively solving the problem that traditional pre-reserved holes cannot adapt to the continuous installation of cable trays.

[0006] To achieve the above objectives, the present invention provides the following technical solution: The present invention provides a BIM-based foldable vertical cable tray direct burial device, the direct burial device comprising: The direct-buried device housing, wherein the interior of the direct-buried device housing is hollow and forms a concrete pouring cavity; and The upper connecting piece and the lower connecting piece are respectively movably connected to the upper and lower ends of the direct-buried device box; The upper connecting piece and the lower connecting piece are both hinged to the corresponding side of the direct burial device box through a rotating component, and when the upper connecting piece and the lower connecting piece are flipped toward the inner side of the direct burial device box, they respectively serve as the top plate and the bottom plate of the direct burial device box. When the device is connected to the upper and lower cable trays, both the upper connecting piece and the lower connecting piece are flipped toward the outside of the direct-buried device box and formed into a vertically extended state.

[0007] Furthermore, when the upper connecting piece is in a vertically extending state, a connecting guard plate is provided at the connection between the upper connecting piece and the direct burial device box, and the upper connecting piece is kept vertical through the connecting guard plate, thereby achieving a fixed connection with the direct burial device box; When the lower connecting piece is in a vertically extending state, a steel positioning angle code is provided at the connection between the lower connecting piece and the direct-buried device box. The steel positioning angle code is used to rigidly connect with the steel reinforcement skeleton of the building structure.

[0008] Furthermore, the direct-buried device housing is welded from high-strength galvanized steel plates, and the direct-buried device housing is configured as a cuboid structure. The width direction of the direct burial device box is the first side of the box, and the length direction of the direct burial device box is the first side of the box; The upper connecting piece is hinged to the first side of the box at the upper end of the direct burial device box via a rotating component, and the lower connecting piece is hinged to the second side of the box at the lower end of the direct burial device box via a rotating component.

[0009] Furthermore, the width of the upper connecting piece is greater than the length of the first side of the box body, and the width of the lower connecting piece is greater than the length of the first side of the box body; When the upper connecting piece and the lower connecting piece are flipped toward the inside of the direct burial device box, both the upper connecting piece and the lower connecting piece partially overlap the outside of the direct burial device box. The rotating component is connected to the middle position of both the upper connecting piece and the lower connecting piece, and the rotating component is a hinge.

[0010] Furthermore, the upper connecting piece has an upper cable tray connection hole machined in the middle region to mate with the upper cable tray, and the lower connecting piece has a lower cable tray connection hole machined in the middle region to mate with the lower cable tray.

[0011] Furthermore, the upper connecting piece has a protective plate connection hole near its edge; The connecting guard plate includes: The lower plate of the connecting guard plate and the upper plate of the connecting guard plate are connected, and the lower plate of the connecting guard plate is configured as an L-shaped structure that matches the corner of the direct burial device box, and the upper plate of the connecting guard plate is configured as a straight plate structure that contacts the outer side of the upper connecting piece. The upper plate of the connecting guard plate is machined with through holes corresponding to the connecting holes of the guard plate; The upper plates of the two connecting guard plates arranged at both ends of the second side of the box of the direct burial device are connected as one piece by connecting rods, and the two ends of the connecting rods have screw parts and are equipped with locking nuts.

[0012] Furthermore, the steel positioning angle code includes a steel positioning angle code welding part that is connected to both the direct-buried device box and the lower connecting piece, and a steel positioning angle code connecting part that is welded and fixed to the steel positioning angle code welding part and extends horizontally toward the outside of the direct-buried device box. The steel positioning angle code connecting part has mounting holes that match the steel reinforcement skeleton of the building structure.

[0013] The present invention also discloses a construction method for a vertical cable tray, which is based on the above-mentioned foldable vertical cable tray direct burial device.

[0014] Furthermore, the main steps include: S1. BIM-driven precision design: Based on the BIM pipeline layout model, three-dimensional collision detection and spatial optimization are performed on the cable trays and distribution box equipment in the power and weak current wells to generate detailed design drawings containing precise coordinates, elevation and spacing data. S2. Determine the spatial positioning coordinates of the direct-buried device and guide the prefabrication process to ensure seamless connection between the direct-buried device and the building structure and pipeline system; S3. Fabricate direct-buried devices according to design dimensions; S4. Flip the upper connecting piece toward the inside of the direct-buried device box. The lower connecting piece can be either extended vertically or flipped toward the inside of the direct-buried device box according to the construction requirements. S5. Pour concrete and wait for it to set. S6. Flip the upper connecting piece toward the outside of the direct-buried device box to a vertically extended state and connect it with the upper cable tray to achieve vertical connection.

[0015] Furthermore, in step S3, based on the precise dimensional data output by BIM, an automated welding process is used to process the device, ensuring that the dimensional accuracy of the direct-buried device housing is ≤2mm.

[0016] In the above technical solution, the foldable vertical cable tray direct-buried device based on BIM and its construction method provided by the present invention have the following beneficial effects: The vertical cable tray direct burial device of the present invention uses a high-strength galvanized steel plate to make a bendable main structural frame, which ensures corrosion resistance and structural strength. At the same time, the foldable connecting plate structure can be folded in a specified direction according to the process steps, which helps the concrete to form and subsequently connect the upper and lower cable trays in the vertical direction, realizing vertical continuity and effectively solving the problem that traditional reserved holes cannot adapt to the continuous installation of cable trays. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the connecting piece of the BIM-based foldable vertical cable tray direct-buried device in the vertically extended state, as provided in an embodiment of the present invention. Figure 2 A schematic diagram of the horizontal state of the connecting piece of the BIM-based foldable vertical cable tray direct burial device provided in an embodiment of the present invention; Figure 3 A schematic diagram of the connecting guard plate of the BIM-based foldable vertical cable tray direct burial device provided in an embodiment of the present invention; Figure 4 A schematic diagram of the structure in which the upper connecting piece of the BIM-based foldable vertical cable tray direct burial device is connected to the direct burial device box via a connecting guard plate, as provided in an embodiment of the present invention. Figure 5 A schematic diagram of the structure of the lower connecting piece of the BIM-based foldable vertical cable tray direct burial device provided in the embodiment of the present invention, which is connected to the direct burial device box by steel positioning angle codes; Figure 6 Construction status diagram of the BIM-based foldable vertical cable tray direct burial device provided in the embodiments of the present invention.

[0019] Explanation of reference numerals in the attached figures: 10. Direct burial device; 20. Upper cable tray; 30. Lower cable tray; 1. Direct-buried device housing; 2. Upper connecting plate; 3. Lower connecting plate; 4. Connecting guard plate; 5. Steel positioning angle bracket; 101. First side of the box; 102. Second side of the box; 401. Connect the lower part of the guard plate; 402. Connect the upper part of the guard plate; 403. Connect the tie rod; 501. Steel positioning angle code welding part; 502. Steel positioning angle code connecting part. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] See Figures 1 to 6 As shown; This embodiment discloses a BIM-based foldable vertical cable tray direct burial device, the direct burial device 10 comprising: The direct-buried device housing 1 has a hollow interior that forms a concrete pouring cavity; and The upper connecting piece 2 and the lower connecting piece 3 are respectively movably connected to the upper and lower ends of the direct-buried device box 1; The upper connecting piece 2 and the lower connecting piece 3 are both hinged to the corresponding sides of the direct burial device box 1 through rotating components. When the upper connecting piece 2 and the lower connecting piece 3 are flipped toward the inside of the direct burial device box 1, they serve as the top plate and bottom plate of the direct burial device box 1, respectively. When the device is connected to the upper and lower cable trays, both the upper connecting piece 2 and the lower connecting piece 3 are flipped outwards towards the outside of the direct-buried device box 1 and formed into a vertically extended state.

[0022] Specifically, this embodiment discloses a foldable vertical cable tray direct burial device, the main body of which is a direct burial device box 1. An upper connecting piece 2 and a lower connecting piece 3 are foldably connected to the upper and lower ends of the direct burial device box 1, respectively. When the connecting piece is flipped to a parallel state facing the inner side of the direct burial device box 1, concrete is poured through the direct burial device box 1. After the concrete is poured and formed, the connecting piece is flipped to a vertically extended state facing the outer side. At this time, the upper connecting piece 2 serves as a structure connected to the upper cable tray 20, while the lower connecting piece 3 serves as a structure connected to the lower cable tray 30. Simultaneously, the lower connecting piece 2 in this embodiment also has a structure for connecting to the skeleton of the building structure, which can prevent displacement, floating, or tilting during concrete pouring, ensuring installation accuracy.

[0023] Preferably, when the upper connecting piece 2 in this embodiment is in a vertically extending state, a connecting guard plate 4 is provided at the connection between the upper connecting piece 2 and the direct burial device box 1, and the upper connecting piece 2 is kept vertical through the connecting guard plate 4, and is fixedly connected to the direct burial device box 1. Secondly, when the lower connecting piece 3 of this embodiment is in a vertically extending state, a steel positioning angle code 5 is provided at the connection between the lower connecting piece 3 and the direct-buried device box 1. The steel positioning angle code 5 is used to rigidly connect with the steel reinforcement skeleton of the building structure.

[0024] This embodiment further defines the connection structure between the upper connecting piece 2 and the lower connecting piece 3 and the direct-buried device housing 1 in the vertical extension state. It is designed with a connecting guard plate 4 and a steel positioning bracket 5, which, when fixed by the connecting guard plate 4 and the steel positioning bracket 5, ensure that the upper connecting piece 2 and the lower connecting piece 3 maintain a vertical extension state when docking with the cable tray. Simultaneously, the steel positioning bracket 5 can also connect to the building structure's frame, maintaining posture stability during docking and improving the accuracy of the docking position.

[0025] Preferably, the direct burial device box 1 in this embodiment is welded from high-strength galvanized steel plate, and the direct burial device box 1 is configured as a cuboid structure; based on the structure of the direct burial device box 1, the width direction of the direct burial device box 1 in this embodiment is the first side 101 of the box, and the length direction of the direct burial device box 1 is the second side 102 of the box. As a more specific connection structure and connection position of the upper and lower connecting pieces, in this embodiment, the upper connecting piece 2 is hinged to the first side 101 of the box body at the upper end of the direct burial device box body 1 through a rotating component, and the lower connecting piece 3 is hinged to the first side 101 of the box body at the lower end of the direct burial device box body 1 through a rotating component.

[0026] In order to keep the upper connecting piece 2 and the lower connecting piece 3 horizontal at all times when in a horizontal state, the width of the upper connecting piece 2 in this embodiment is greater than the length of the first side 101 of the box, and the width of the lower connecting piece 3 is greater than the length of the first side 101 of the box. When the upper connecting piece 2 and the lower connecting piece 3 are flipped toward the inside of the direct burial device box 1, both the upper connecting piece 2 and the lower connecting piece 3 partially overlap the outside of the direct burial device box 1; rotating parts are connected to the middle of the upper connecting piece 2 and the middle of the lower connecting piece 3, and the rotating parts are hinges.

[0027] Preferably, in this embodiment, the middle region of the upper connecting piece 2 is machined with an upper cable tray connection hole that mates with the upper cable tray 20, and the middle region of the lower connecting piece 3 is machined with a lower cable tray connection hole that mates with the lower cable tray 30.

[0028] Preferably, in this embodiment, the upper connecting piece 2 is machined with a protective plate connection hole near its edge. Based on the structure of the upper connecting piece 2 and the connection structure between the upper connecting piece 2 and the direct burial device housing 1, this embodiment further defines the structure of the connecting protective plate 4 and the connection structure between the connecting protective plate 4 and the upper connecting piece 2 and the direct burial device housing 1. Specifically, the connecting protective plate 4 in this embodiment includes a lower connecting protective plate 401 and an upper connecting protective plate 402. The lower connecting protective plate 401 is configured as an L-shaped structure matching the corner of the direct burial device housing 1, and the upper connecting protective plate 402 is configured as a straight plate structure contacting the outer side of the upper connecting piece 2. The upper connecting protective plate 402 is machined with a through hole corresponding to the protective plate connection hole. The two upper connecting protective plates 401 arranged along both ends of the second side 102 of the direct burial device housing 1 are connected as one unit by a connecting rod 403, and both ends of the connecting rod 403 have screw portions and are fitted with locking nuts.

[0029] First, since the length of the upper connecting piece 2 is greater than the length of the first side 101 of the direct burial device box 1, when it is in the vertical extension state, both ends of the upper connecting piece 2 extend to the outside of the direct burial device box 1. Therefore, the connecting guard plate 4 in this embodiment is divided into two parts according to the structure of the upper connecting piece 2 and the direct burial device box 1, namely the lower plate 401 of the L-shaped connecting guard plate and the upper plate 402 of the straight plate connecting guard plate. When the upper connecting piece 2 is flipped outward and extended vertically, the connecting guard plate 4 is attached to the connection between the upper connecting piece 2 and the direct burial device box 1. At this time, the lower plate 401 of the connecting guard plate is attached to the corresponding corner of the direct burial device box 1, and the upper plate 402 of the connecting guard plate is attached to the outer side of the upper connecting piece 2 and close to the edge. Meanwhile, in order to form a connection between adjacent upper connecting pieces 2 and to keep multiple upper connecting pieces 2 vertical at the same time, a connecting rod is used that passes through two upper connecting pieces 2 and the upper plate 402 of the connecting guard plate and is connected and positioned with a locking nut. This can further improve the connection accuracy with the upper cable tray 20.

[0030] Preferably, the steel positioning angle bracket 5 in this embodiment includes a steel positioning angle bracket welding part 501 that is connected to both the direct burial device box 1 and the lower connecting piece 3, and a steel positioning angle bracket connecting part 502 that is welded and fixed to the steel positioning angle bracket welding part 501 and extends horizontally toward the outside of the direct burial device box 1. The steel positioning angle bracket connecting part 502 has mounting holes that match the steel reinforcement skeleton of the building structure.

[0031] The present invention also discloses a construction method for a vertical cable tray, which is based on the above-mentioned foldable vertical cable tray direct burial device 10.

[0032] Furthermore, the main steps include: S1. BIM-driven precision design: Based on the BIM pipeline layout model, three-dimensional collision detection and spatial optimization are performed on the cable trays and distribution box equipment in the power and weak current wells to generate detailed design drawings containing precise coordinates, elevation and spacing data. S2. Determine the spatial positioning coordinates of the direct-buried device 10 and guide the prefabrication process to ensure seamless connection between the direct-buried device 10 and the building structure and pipeline system. S3. Fabricate the direct burial device 10 according to the design dimensions; S4. Flip the upper connecting piece 2 toward the inside of the direct-buried device box 1. The lower connecting piece 3 can be either extended vertically or flipped toward the inside of the direct-buried device box 1 according to the construction requirements. S5. Pour concrete and wait for it to set. S6. Flip the upper connecting piece 2 toward the outside of the direct-buried device box 1 to a vertically extended state, and connect it with the upper cable tray 20 to achieve vertical connection.

[0033] Preferably, in step S3 of this embodiment, the device is processed using an automated welding process based on the precise dimensional data output by BIM, and the dimensional accuracy of the direct-buried device box is ensured to be ≤2mm.

[0034] This device enables efficient on-site installation. The device is precisely located using a positioning coordinate map. The folded device is then embedded into the wall or floor slab formwork using a template fixing system. After the rebar is tied and the concrete is poured, the cable tray can be quickly installed by simply opening the connecting piece, significantly shortening the construction period.

[0035] In the above technical solution, the foldable vertical cable tray direct-buried device based on BIM and its construction method provided by the present invention have the following beneficial effects: The vertical cable tray direct burial device of the present invention uses a high-strength galvanized steel plate to make a bendable main structural frame, which ensures corrosion resistance and structural strength. At the same time, the foldable connecting plate structure can be folded in a specified direction according to the process steps, which helps the concrete to form and subsequently connect the upper and lower cable trays in the vertical direction, realizing vertical continuity and effectively solving the problem that traditional reserved holes cannot adapt to the continuous installation of cable trays.

[0036] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A BIM-based foldable vertical bridge tray direct-burying device, characterized in that, The direct-buried device (10) comprises: a direct-buried device box (1) which is hollow inside to form a concrete pouring cavity; and upper and lower connecting plates (2) and (3) which are respectively movably connected to the upper and lower ends of the direct-buried device box (1); the upper and lower connecting plates (2) and (3) are both hinged to the corresponding sides of the direct-buried device box (1) through rotating parts, and when the upper and lower connecting plates (2) and (3) are turned to the inside of the direct-buried device box (1), they respectively serve as the top plate and the bottom plate of the direct-buried device box (1); when the device is connected with the upper and lower bridge frames, the upper and lower connecting plates (2) and (3) are both turned to the outside of the direct-buried device box (1) and formed in a vertically extending state.

2. The BIM-based foldable vertical bridge tray direct-burying device according to claim 1, characterized in that, when the upper connecting plate (2) is in a vertically extending state, a connecting guard plate (4) is arranged at the connection between the upper connecting plate (2) and the direct-buried device box (1), and the upper connecting plate (2) is kept in a vertical state through the connecting guard plate (4) and is fixedly connected with the direct-buried device box (1); when the lower connecting plate (3) is in a vertically extending state, a steel positioning angle code (5) is arranged at the connection between the lower connecting plate (3) and the direct-buried device box (1), and the steel positioning angle code (5) is used to rigidly connect with the building structure reinforcement framework.

3. The BIM-based foldable vertical bridge tray direct-burying device according to claim 2, characterized in that, the direct-buried device box (1) is welded by high-strength galvanized steel plates, and is configured as a cuboid structure; the width direction of the direct-buried device box (1) is the first side (101) of the box, and the length direction of the direct-buried device box (1) is the second side (102) of the box; the upper connecting plate (2) is hinged to the first side (101) of the box at the upper end of the direct-buried device box (1) through a rotating part, and the lower connecting plate (3) is hinged to the first side (101) of the box at the lower end of the direct-buried device box (1) through a rotating part.

4. The BIM-based foldable vertical bridge tray direct-burying device according to claim 3, characterized in that, the width of the upper connecting plate (2) is greater than the length of the first side (101) of the box, and the width of the lower connecting plate (3) is greater than the length of the first side (101) of the box; when the upper and lower connecting plates (2) and (3) are turned to the inside of the direct-buried device box (1), the upper and lower connecting plates (2) and (3) are both partially overlapped on the outside of the direct-buried device box (1); the middle positions of the upper and lower connecting plates (2) and (3) are both connected with the rotating parts, and the rotating parts are hinges.

5. The BIM-based foldable vertical bridge tray direct-burying device according to claim 3, characterized in that, the middle region of the upper connecting plate (2) is processed with an upper bridge frame connecting hole which is butt-jointed with the upper bridge frame (20), and the middle region of the lower connecting plate (3) is processed with a lower bridge frame connecting hole which is butt-jointed with the lower bridge frame (30).

6. The BIM-based foldable vertical bridge tray direct-burying device according to claim 5, characterized in that, the position close to the edge of the upper connecting plate (2) is processed with a guard plate connecting hole; the connecting guard plate (4) comprises: The connecting guard plate lower plate body (401) is configured as an L-shaped structure matched with the corner of the direct-buried device box (1), and the connecting guard plate upper plate body (402) is configured as a straight plate structure in contact with the outer side of the upper layer connecting sheet (2). The connecting guard plate upper plate body (402) is processed with a through hole corresponding to the guard plate connecting hole. The two connecting guard plate upper plate bodies (402) arranged at both ends of the box second side (102) of the direct-buried device box (1) are connected as a whole through a connecting pull rod (403), and the two end portions of the connecting pull rod (403) have screw rod portions and are provided with locking nuts.

7. The BIM-based foldable vertical bridge tray direct-burying device according to claim 5, characterized in that, The steel positioning angle code (5) includes a steel positioning angle code welding portion (501) connected with the direct-buried device box (1) and the lower layer connecting sheet (3), and a steel positioning angle code connecting portion (502) welded and fixed with the steel positioning angle code welding portion (501) and horizontally extended towards the outer side of the direct-buried device box (1), the steel positioning angle code connecting portion (502) has a mounting hole matched with the building structure reinforcement framework.

8. A method of erecting a vertical bridge, characterized by The construction method of the vertical bridge is based on the foldable vertical bridge direct-buried device (10) of any one of claims 1 to 7.

9. The construction method of a vertical bridge according to claim 8, wherein Mainly including the following steps: S1, BIM-driven accurate design: based on the BIM pipeline comprehensive arrangement model, the three-dimensional collision detection and space optimization of the strong and weak electric well bridge and the distribution box equipment are carried out, and the deepening design drawing containing accurate coordinates, elevations and spacing data is generated; S2, determine the spatial positioning coordinates of the direct-buried device (10), and guide the prefabrication processing to ensure the seamless connection of the direct-buried device (10) and the building structure and pipeline system; S3, according to the design size requirement, the direct-buried device (10) is made; S4, the upper layer connecting sheet (2) is turned over to the inner side of the direct-buried device box (1), and the lower layer connecting sheet (3) is selected to be vertically extended or turned over to the inner side of the direct-buried device box (1) according to the construction requirement; S5, pouring concrete, and waiting for the concrete to be poured and shaped; S6, turn the upper layer connecting sheet (2) to the outer side of the direct-buried device box (1) to the vertical extension state, and abut with the upper layer bridge (20) to realize the vertical penetration.

10. The construction method of a vertical bridge according to claim 9, wherein In the step S3, according to the accurate size data output by BIM, automatic welding process is adopted, and the size accuracy of the direct-buried device box (1) is ensured to be ≤2mm.

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