Large-span steel net rack electromechanical pipeline mounting structure and construction method

Abstract

The invention belongs to the technical field of steel truss roof electromechanical pipeline installation, and particularly relates to a large-span steel truss electromechanical pipeline installation structure and a construction method. The large-span steel truss electromechanical pipeline installation structure comprises a main pipe support assembly and a branch pipe hanging support assembly; the main pipe support assemblies are fixedly installed on the side edge of a peripheral structure around the steel net frame at intervals, the main pipes are fixedly installed on the main pipe support assemblies, the branch pipes are evenly distributed below the steel net frame, and bolt holes are formed in the lower sides of bolt balls at all joints of the steel net frame. A plurality of branch pipe hanging support assemblies are connected to the lower sides of the bolt balls through high-strength bolts in a threaded mode, and branch pipelines are fixedly installed on the branch pipe hanging support assemblies. The load of the electromechanical pipeline main pipe is transmitted to peripheral columns, beams, walls and other structures, so that the load borne by the steel net rack is reduced; branch pipe loads are directly connected to the steel net rack bolt-sphere joints through the branch pipe hanging support assemblies, and reasonable distribution of loads of installation pipelines under the steel net rack is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of steel grid roof electromechanical pipeline installation, and specifically relates to a large-span steel grid electromechanical pipeline installation structure and a construction method. Background Art

[0002] Steel grid structures are widely used in buildings, bridges, industrial plants and other fields. The grid structure can adapt to the requirements of public buildings and factory buildings with different spans and different supporting conditions, and can also adapt to different building planes and their combinations. The grid structure is a high-order hyperstatic structure that can better withstand concentrated loads, dynamic loads and asymmetric loads, and has good seismic performance.

[0003] In view of the recent collapse of several steel grid roofs in my country, people are paying more and more attention to the reliability and safety of steel grid structures. The design of steel grid structures does not allow the rods to be stressed, the design load of the lower chord ball node is consistent with the decoration load, and the design of the steel grid does not consider the reasonable stress of the support bracket. Starting from reducing the load borne by the grid, give the grid structure more safety load margin to cope with sudden changes in load and reduce the risk of steel grid structure accidents. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a large-span steel grid electromechanical pipeline installation structure, reduce the load borne by the steel grid, and achieve reasonable distribution of the load of the pipelines installed under the grid.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a large-span steel grid electromechanical pipeline installation structure, including a main pipe bracket assembly and a branch pipe hanging bracket assembly, the main pipeline is arranged around the steel grid, and a plurality of main pipe bracket assemblies are fixedly installed at intervals on the sides of the peripheral structure around the steel grid, the main pipeline is fixedly installed on the main pipe bracket assembly, and the branch pipelines are evenly distributed below the steel grid. Bolt holes are opened on the lower side of the bolt ball at each node of the steel grid, and a plurality of branch pipe hanging bracket assemblies are respectively threadedly connected to the lower side of each bolt ball by high-strength bolts, and the branch pipelines are fixedly installed on the branch pipe hanging bracket assembly.

[0006] Preferably, the main pipe support assembly includes an air duct support assembly and a triangular support assembly, the air duct support assembly is a two-layer support structure, and the triangular support assembly is a single-layer support structure.

[0007] Preferably, the air duct support assembly includes an upper support rod and a lower support rod, the upper support rod and the lower support rod are both horizontal and fixedly installed on the side of the peripheral structure, a lower diagonal brace is fixedly arranged between the upper support rod and the lower support rod, and the lower end of the lower diagonal brace is inclined toward the side close to the peripheral structure, the air duct is installed on the upper side of the upper support rod, and the fire hydrant pipe is installed on the upper side of the lower support rod.

[0008] Preferably, an air duct bracket is horizontally arranged above the upper support rod, one end of the air duct bracket is fixedly connected to the side of the peripheral structure, and a plurality of hanging rods are fixedly arranged on the lower side of the air duct bracket, and the lower ends of the hanging rods are fixedly connected to the upper support rod.

[0009] Preferably, an upper diagonal brace is obliquely provided on the upper side of the air duct bracket, the upper end of the upper diagonal brace is fixedly connected to the side of the peripheral structure, and the lower end of the upper diagonal brace is fixedly connected to the upper side of the upper support rod.

[0010] Preferably, the triangular bracket assembly includes a fixed rod and an oblique support rod, the fixed rod is horizontally arranged, one end of the fixed rod is installed on the side of the peripheral structure, the oblique support rod is arranged on the upper side of the fixed rod, the upper end of the oblique support rod is installed on the side of the peripheral structure, the lower end of the oblique support rod is connected to the upper side of the fixed rod, the bridge frame is arranged on the upper side of the fixed rod, and the sprinkler main pipe is also fixedly installed on the upper side of the fixed rod.

[0011] Preferably, a suspension rod is fixed and vertically arranged between the oblique support rod and the fixed rod, and the suspension rod is arranged close to the connection between the oblique support rod and the fixed rod.

[0012] Preferably, a steel plate is reserved at a corresponding position of the peripheral structure, and the main pipe bracket assembly is mounted on the reserved steel plate by fixing bolts.

[0013] Preferably, the branch pipe hanging bracket assembly includes a supporting tube, a lower supporting plate and an angle steel bracket, the upper end of the supporting tube is connected to the lower side of the bolt ball by high-strength bolts, the lower supporting plate is fixedly connected to the lower end of the supporting tube, and the angle steel bracket is connected to the lower side of the lower supporting plate.

[0014] Preferably, a bolt hole is also preset on the upper side of the bolt ball, a supporting tube is also provided on the upper side of the bolt ball, and an upper supporting plate is fixedly provided on the upper end of the supporting tube.

[0015] Preferably, a channel steel is set through the angle steel bracket of each group of branch pipe hanging bracket assemblies, and a number of hanging rods are hung on the channel steel. The spacing between each hanging rod is less than or equal to 1m, and the spray branch pipe is set on the upper side of the channel steel. The refrigerant pipe and the condenser pipe are arranged vertically and fixedly connected to the hanging rod.

[0016] Preferably, the main pipeline is fixedly mounted on the main pipe support assembly via a U-shaped clip.

[0017] A large-span steel grid electromechanical pipeline installation construction method comprises the following steps: S1. Use BIM software to build three-dimensional models of steel grids and electromechanical pipelines, analyze according to the BIM model, clarify the layout ideas in the BIM electromechanical pipeline optimization process, divide and hierarchically process the electromechanical main and branch pipes under the steel grid structure according to the pipe diameter and application scope, and arrange the main pipes along the outer structures such as columns, beams, and walls; S2. The branch pipes under the steel grid are arranged and adjusted according to the design, the position of the branch pipe hanging bracket assembly is clarified, and bolt holes are reserved at the corresponding positions of the steel grid bolt ball nodes at the installation positions of the branch pipe hanging bracket assembly; S3. Make the main pipe bracket assembly and the branch pipe hanging bracket assembly according to the modeling; S4. Reserve steel plates in advance when processing the peripheral structure, fix the main pipe bracket assembly on the reserved steel plate, and install the main pipe according to the modeling; S5. Connect the branch pipe hanging bracket assembly to the lower side of the bolt ball, keep the branch pipe hanging bracket assembly at the same elevation, and install each branch pipe line; S6. Installation construction acceptance.

[0018] Compared with the prior art, the above technical solution has the following beneficial effects: The present invention transfers the main load of the electromechanical pipeline to the surrounding columns, beams, walls and other structures, thereby transferring the main load of the electromechanical pipeline under the steel grid, thereby reducing the load borne by the steel grid; the branch pipe loads such as the sprinkler branch pipe and the electric pipe are directly connected to the bolt ball node of the steel grid by using the branch pipe hanging bracket assembly, thereby realizing reasonable distribution of the pipeline load installed under the steel grid, and through load reduction and transfer, more safety load margin is left for the steel grid structure to cope with sudden changes in load, which can reduce the risk of accidents of the steel grid structure and realize the safety of electromechanical hanging installation construction and later use of the steel grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the fixed bracket in the air duct area.

[0020] Figure 2 This is a schematic diagram of the structure of the fixed bracket in other areas.

[0021] Figure 3 This is a schematic diagram of the structure of the middle branch pipe hanging bracket.

[0022] Figure 4 This is a schematic diagram of the installation structure of a multi-connection system.

[0023] Among them: 1. Wall 2. Air duct bracket 3. Upper support rod 4. Hanging rod 5. Upper oblique brace 6. Air duct 7. Lower oblique brace 8. Lower support rod 9. Fire hydrant pipe 10. U-shaped card 11. Reserved steel plate 12. End plate 13. Fixing bolt 14. Oblique support rod 15. Bridge 16. Hanging rod 17. Sprinkler main pipe 18. Fixing rod 19. Upper support plate 20. Closing plate 21. High-strength bolt 22. Bolt ball 23. Rib plate 24. Lower support plate 25. Angle steel bracket 26. Support tube 27. Branch pipe hanging bracket 28. Channel steel. DETAILED DESCRIPTION

[0024] Figures 1 to 4 The best embodiment of the present invention is shown below in conjunction with the attached Figures 1 to 4 The present invention is further described.

[0025] like Figure 1 As shown, a large-span steel grid electromechanical pipeline installation structure of the present invention includes a main pipe bracket assembly and a branch pipe hanging bracket assembly. The main pipe is arranged around the steel grid, and a plurality of main pipe bracket assemblies are fixedly installed at intervals on the side of the peripheral structure around the steel grid. The main pipe is fixedly installed on the main pipe bracket assembly, and the electromechanical main pipe load under the steel grid is transferred to the peripheral structure, that is, the wall 1, so as to reduce the load borne by the steel grid; the branch pipes are evenly distributed under the steel grid, and bolt holes are opened on the lower side of the bolt ball 22 at each node of the steel grid. A plurality of branch pipe hanging bracket assemblies are respectively threadedly connected to the lower side of each bolt ball 22 through high-strength bolts 21, and the branch pipe is fixedly installed on the branch pipe hanging bracket assembly. The branch pipe hanging bracket assembly hangs the branch pipe, and the branch pipe hanging bracket assembly disperses the load of the branch pipe on the bolt ball 22 nodes of each steel grid, so as to realize the reasonable distribution of the pipeline load installed under the steel grid.

[0026] The main pipe bracket assembly includes an air duct bracket assembly and a triangular bracket assembly. The air duct bracket assembly is a two-layer support structure. The air duct bracket assembly is installed at the position of the air duct 6 and is used to support the air duct 6 and other main pipes. Therefore, a two-layer support structure is required. The triangular bracket assembly is a single-layer support structure and is installed at other main pipe positions.

[0027] Specifically, the air duct bracket assembly is a Z-shaped fixed bracket, including an upper support rod 3 and a lower support rod 8. The upper support rod 3 and the lower support rod 8 are both horizontally and fixedly installed on the wall 1. Steel plates are reserved at corresponding positions of the wall 1. End plates 12 are fixedly arranged at one end of the upper support rod 3 and the lower support rod 8. The end plate 12 and the reserved steel plate 11 are fixedly connected by fixing bolts 13, and then the upper support rod 3 and the lower support rod 8 are fixedly installed on one side of the wall 1. A lower diagonal brace 7 is fixedly arranged between the upper support rod 3 and the lower support rod 8. The lower end of the lower diagonal brace 7 is inclined toward the side close to the wall 1. The lower diagonal brace 7 and the upper support rod 3 and the lower support rod 8 are fixed by welding and all use 10# channel steel. In this embodiment, the air duct 6 is installed on the upper side of the upper support rod 3, the fire hydrant pipe 9 is installed on the upper side of the lower support rod 8 through a U-shaped card 10, and the fire hydrant pipe 9 is installed on the outer side of the lower diagonal brace 7.

[0028] In this embodiment, every 1 to 2 duct support assemblies, a duct support 2 is horizontally arranged above the upper support rod 3. The duct support 2 is made of angle steel. One end of the duct support 2 is also fixedly connected to the wall 1 through an end plate 12 and a fixing bolt 13. A plurality of hanging bars 4 are fixedly arranged on the lower side of the duct support 2. The lower end of the hanging bars 4 is fixedly connected to the upper support rod 3. The hanging bars 4 and the upper support rod 3 and the lower support rod 8 are fixedly connected by bolts. The duct support 2 and the hanging bars 4 can share the weight of the duct 6 on the upper support rod 3. An upper diagonal brace 5 is obliquely arranged on the upper side of the duct support 2. The upper end of the upper diagonal brace 5 is fixedly connected to the wall 1 through an end plate 12 and a fixing bolt 13. The lower end of the upper diagonal brace 5 is fixedly connected to the upper side of the upper support rod 3. A reserved steel plate 11 is also arranged on the wall 1 at the position corresponding to the upper diagonal brace 5 and the duct support 2.

[0029] like Figure 2 As shown, a triangular bracket assembly is installed in other areas of the main pipe except the air duct 6. The triangular bracket assembly includes a fixed rod 18 and an oblique support rod 14. The fixed rod 18 is horizontally arranged. The fixed rod 18 adopts 12.5# channel steel. One end of the fixed rod 18 is installed on the wall 1, and the oblique support rod 14 is arranged on the upper side of the fixed rod 18. The upper end of the oblique support rod 14 is installed on the wall 1, and the lower end of the oblique support rod 14 is connected to the upper side of the fixed rod 18. The bridge 15 is arranged on the upper side of the fixed rod 18, and the spray main pipeline 17 is also fixedly installed on the upper side of the fixed rod 18 through a U-shaped card 10. The installation of the fixed rod 18 and the oblique support rod 14 is the same as the upper support rod 3 and the lower support rod 8. A reserved steel plate 11 is set at the corresponding position of the load-bearing wall 1, and an end plate 12 is set at one end of the fixed rod 18 and the oblique support rod 14. The end plate 12 and the reserved steel plate 11 are fixedly connected by fixing bolts 13. In order to make the triangular bracket assembly more secure, in this embodiment, a hanging rod 16 is fixed and vertically arranged between the oblique support rod 14 and the fixed rod 18. The hanging rod 16 is arranged near the connection between the oblique support rod 14 and the fixed rod 18, and the spray main pipeline 17 is installed in the space enclosed by the hanging rod 16, the fixed rod 18 and the oblique support rod 14.

[0030] like Figure 3 As shown, each branch pipe is evenly distributed under the steel grid, bolt holes are preset on the bolt ball 22 of the steel grid, and the branch pipe hanging bracket assembly is installed under the bolt ball 22. The branch pipe hanging bracket assembly includes a supporting tube 26, a lower supporting plate 24 and an angle steel bracket 25. The upper end of the supporting tube 26 is provided with a sealing plate 20 and is connected to the lower side of the bolt ball 22 through high-strength bolts 21. The lower supporting plate 24 is fixedly welded to the lower end of the supporting tube 26. The angle steel bracket 25 is also connected to the lower side of the lower supporting plate 24 through high-strength bolts 21. The angle steel bracket 25 is provided with holes for the passage of pipelines. After the branch pipe hanging bracket 27 is installed on the lower side of the bolt ball 22, the branch pipe passes through the angle steel bracket 25, and the branch pipe is hoisted and fixed by the branch pipe hanging bracket 27, so that the load of the branch pipe is dispersed on the nodes of the bolt ball 22 of each steel grid.

[0031] When a roof needs to be set on the upper side of the steel grid, bolt holes are also preset on the upper side of the bolt ball 22, and a supporting tube 26 is also provided on the upper side of the bolt ball 22. An upper supporting plate 19 is fixedly provided on the upper end of the supporting tube 26, and the upper supporting plate 19 can support the roof; in order to enhance the strength of the supporting tube 26, a rib plate 23 is provided at the end of the supporting tube 26, and a plurality of rib plates 23 are provided at intervals around the supporting tube 26.

[0032] like Figure 4 As shown, some projects design multi-split systems. Although the loads of the multi-split system, air duct 6, refrigerant pipe and condensed water are small, the coverage area is large. The roof and steel grid cannot hang the multi-split system. To address this problem, the designed branch pipe hanging bracket 27 can be used. The branch pipe hanging bracket 27 hangs the 8# channel steel as a transfer layer. The multi-split system and air duct 6 are set with horizontal channel steel 28 where they need to be hung. The spray branch pipe is set on the upper side of the channel steel 28, and the hanging rod 4 is hung on the lower side of the channel steel 28. The spacing between the hanging rods 4 is not more than 1m. The refrigerant pipe and the condenser pipe are arranged vertically and fixedly connected to the hanging rod 4.

[0033] A large-span steel grid electromechanical pipeline installation construction method of the present invention comprises the following steps: S1. Use BIM software to build three-dimensional models of steel grids and electromechanical pipelines, analyze according to the BIM model, clarify the layout ideas in the BIM electromechanical pipeline optimization process, divide and hierarchically process the electromechanical main and branch pipes under the steel grid structure according to the pipe diameter and application scope, and arrange the main pipes along the outer structures such as columns, beams, and walls; S2. The electromechanical branch pipes under the steel grid are arranged and adjusted according to the design, the position of the branch pipe hanging bracket assembly is clarified, and bolt holes are reserved at the corresponding positions of the steel grid bolt ball 22 nodes at the installation position of the branch pipe hanging bracket assembly; S3. Make the main pipe bracket assembly and the branch pipe hanging bracket assembly according to the modeling; S4. When processing the wall 1, reserve a steel plate in advance, fix the main pipe bracket assembly on the wall 1, and install the main pipe according to the modeling; S5. Connect the branch pipe hanging bracket assembly to the lower side of the bolt ball 22, keep the branch pipe hanging bracket assembly at the same elevation, install each branch pipe, and the hanger installation should be flat, firm and reliable; S6. Installation construction acceptance.

[0034] When installing the main pipeline in step S4, a soft gasket should be installed between the main pipeline and the main pipe bracket assembly. The gasket should not corrode the main pipeline. The main pipeline installation body hoisting force point should be firm and reliable. The anchor point is strictly prohibited from being tied to a brick column, brick wall or other unstable structures. During the installation process, attention should be paid to the insulation and anti-corrosion treatment of the pipeline to ensure the service life and safety of the pipeline. The main pipe bracket assembly on the horizontal main pipe should be evenly stressed. Individual main pipe bracket assemblies are not allowed to be suspended or the slope is not qualified to cause pipeline deformation. The connection welds of the pipeline are not allowed on the main pipe bracket assembly where stress is concentrated, and should be staggered by 50~200mm. Considering the displacement of the pipeline after thermal elongation, corresponding installation measures need to be taken.

[0035] During the acceptance of electromechanical installation construction, it is necessary to check whether the combined main support assembly and branch pipe hanging support assembly are in the same direction, whether the horizontal and vertical meet the requirements, and adjust if they do not meet the requirements. Whether the welding and bolt connections are firm, the design of the multi-link transfer layer needs to be reviewed with the design unit, and the transfer layer needs to be welded according to the BIM planning elevation and position, and the welding should comply with relevant regulations. Finally, check whether the electromechanical pipeline installation meets the relevant acceptance requirements, and whether the water pressure test, sealing test, and vacuum test are qualified. After the insulation shell construction is completed, carefully check that the flatness and levelness of the shell surface meet the requirements, and use tape to wrap the shell joint 2~3 times, and use tape to wrap once every 400mm in the middle to ensure tight insulation.

[0036] The present invention uses BIM software to perform three-dimensional modeling of the steel grid and electromechanical pipelines, performs analysis based on the BIM model, clarifies the layout ideas in the BIM electromechanical pipeline optimization process, divides the electromechanical main pipes and branch pipes under the steel grid structure into zones and hierarchies according to the pipe diameter and application scope, arranges the main pipes along the peripheral structures such as columns, beams, and walls, transfers the main pipe loads of the electromechanical pipelines to the surrounding columns, beams, walls and other structures, thereby transferring the main pipe loads of the electromechanical pipelines under the steel grid, and reducing the load borne by the steel grid; the branch pipe loads such as the spray branch pipe and the electric pipe are directly connected to the bolt ball 22 nodes of the steel grid by using the branch pipe hanging bracket assembly, thereby realizing the reasonable distribution of the pipeline load installed under the steel grid, and leaving more safe load margins for the steel grid structure through load reduction and transfer to cope with sudden changes in loads, thereby reducing the risk of steel grid structure accidents and realizing the safety of electromechanical hanging installation construction and later use of the steel grid.

[0037] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. A large-span steel grid electromechanical pipeline installation structure, characterized in that: It comprises a main pipe support assembly and a branch pipe hanging support assembly, wherein the main pipe is arranged around a steel grid, a plurality of main pipe support assemblies are fixedly installed at intervals on the side of the peripheral structure around the steel grid, the main pipe is fixedly installed on the main pipe support assembly, the branch pipes are evenly distributed below the steel grid, bolt holes are provided on the lower side of the bolt balls (22) at each node of the steel grid, a plurality of branch pipe hanging support assemblies are respectively threadedly connected to the lower side of each bolt ball (22) through high-strength bolts (21), and the branch pipes are fixedly installed on the branch pipe hanging support assembly.

2. A large-span steel grid electromechanical pipeline installation structure according to claim 1, characterized in that: The main pipe support assembly includes an air duct support assembly and a triangular support assembly. The air duct support assembly is a two-layer support structure, and the triangular support assembly is a single-layer support structure.

3. A large-span steel grid electromechanical pipeline installation structure according to claim 2, characterized in that: The air duct support assembly comprises an upper support rod (3) and a lower support rod (8), the upper support rod (3) and the lower support rod (8) are both horizontally and fixedly mounted on the side of the peripheral structure, a lower oblique support (7) is fixedly arranged between the upper support rod (3) and the lower support rod (8), the lower end of the lower oblique support (7) is inclined toward a side close to the peripheral structure, the air duct (6) is mounted on the upper side of the upper support rod (3), and the fire hydrant pipe (9) is mounted on the upper side of the lower support rod (8).

4. A large-span steel grid electromechanical pipeline installation structure according to claim 3, characterized in that: An air duct support (2) is horizontally arranged above the upper support rod (3), one end of the air duct support (2) is fixedly connected to the side of the peripheral structure, and a plurality of hanging rods (4) are fixedly arranged on the lower side of the air duct support (2), the lower ends of the hanging rods (4) are fixedly connected to the upper support rod (3).

5. A large-span steel grid electromechanical pipeline installation structure according to claim 4, characterized in that: An upper oblique brace (5) is obliquely arranged on the upper side of the air duct support (2), the upper end of the upper oblique brace (5) is fixedly connected to the side of the peripheral structure, and the lower end of the upper oblique brace (5) is fixedly connected to the upper side of the upper support rod (3).

6. The large-span steel grid electromechanical pipeline installation structure according to claim 2 is characterized by: The triangular support assembly comprises a fixed rod (18) and an oblique support rod (14); the fixed rod (18) is arranged horizontally, one end of the fixed rod (18) is mounted on the side of the peripheral structure, the oblique support rod (14) is arranged on the upper side of the fixed rod (18), the upper end of the oblique support rod (14) is mounted on the side of the peripheral structure, the lower end of the oblique support rod (14) is connected to the upper side of the fixed rod (18), the bridge (15) is arranged on the upper side of the fixed rod (18), and the main spray pipe (17) is also fixedly mounted on the upper side of the fixed rod (18).

7. The large-span steel grid electromechanical pipeline installation structure according to claim 6 is characterized by: A suspension rod (16) is fixed and vertically arranged between the oblique support rod (14) and the fixed rod (18), and the suspension rod (16) is arranged close to the connection between the oblique support rod (14) and the fixed rod (18).

8. The large-span steel grid electromechanical pipeline installation structure according to claim 1 is characterized by: The branch pipe hanging bracket assembly comprises a supporting tube (26), a lower supporting plate (24) and an angle steel bracket (25); the upper end of the supporting tube (26) is connected to the lower side of the bolt ball (22) via a high-strength bolt (21); the lower supporting plate (24) is fixedly connected to the lower end of the supporting tube (26); and the angle steel bracket (25) is connected to the lower side of the lower supporting plate (24).

9. The large-span steel grid electromechanical pipeline installation structure according to claim 8, characterized in that: A bolt hole is also preset on the upper side of the bolt ball (22), a support tube (26) is also provided on the upper side of the bolt ball (22), and an upper support plate (19) is fixedly provided on the upper end of the support tube (26).

10. A method for installing a large-span steel grid electromechanical pipeline, using the large-span steel grid electromechanical pipeline installation structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Use BIM software to build three-dimensional models of steel grids and electromechanical pipelines, analyze according to the BIM model, clarify the layout ideas in the BIM electromechanical pipeline optimization process, divide and hierarchically process the electromechanical main and branch pipes under the steel grid structure according to the pipe diameter and application scope, and arrange the main pipelines along the peripheral structure; S2. The branch pipes under the steel grid are arranged and adjusted according to the design, the position of the branch pipe hanging bracket assembly is clarified, and bolt holes are reserved at the corresponding positions of the steel grid bolt ball (22) nodes at the installation position of the branch pipe hanging bracket assembly; S3. Make the main pipe bracket assembly and the branch pipe hanging bracket assembly according to the modeling; S4. When processing the peripheral structure, a steel plate is reserved in advance, the main pipe support assembly is fixedly connected to the reserved steel plate (11), and the main pipe is installed according to the modeling; S5. Connect the branch pipe hanging bracket assembly to the lower side of the bolt ball (22), keep the branch pipe hanging bracket assembly at the same elevation, and install each branch pipe line; S6. Installation construction acceptance.

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