Building electromechanical pipeline modular construction method based on BIM technology

Abstract

The invention provides a building electromechanical pipeline modular construction method based on the BIM technology, and relates to the technical field of BIM. The method comprises the steps that comprehensive arrangement of project pipelines is conducted through the BIM technology, adjustment is conducted according to cross collision occurring in the installation process, a support is designed, and support stress is rechecked; the method comprises the following steps of: designing a comprehensive pipeline of a region in BIM software in detail according to nodes, dividing the comprehensive pipeline into electromechanical pipeline installation modules of one unit, and providing a pipeline module three-view; module prefabrication is conducted according to the requirements of a BIM module drawing, after prefabrication is completed, segmented comprehensive electromechanical pipelines are assembled on a manufactured assembly frame, and transportation is conducted after assembly; and an overall installation scheme is planned according to the overall pipeline installation area, the bearing capacity of a floor or a beam is rechecked, and segmented hoisting or lifting and overall module splicing of the pipeline unit modules are carried out. The comprehensive quality and construction safety of the electromechanical pipeline system are improved.

Description

Technical Field

[0001] This invention relates to the field of BIM technology, and in particular to a modular construction method for building electromechanical pipelines based on BIM technology. Background Technology

[0002] In traditional building electromechanical pipeline construction, water supply, drainage, electrical, and ventilation pipelines are often installed using a single-pipe independent hoisting method. The lack of overall coordination in the design and construction of these pipelines leads to frequent pipeline intersections and collisions, low space utilization, and low construction efficiency. Although the application of integrated support technologies (such as prefabricated supports and combined supports) has improved the uniformity of pipeline layout to some extent, the lack of a systematic design methodology results in low support sharing rates, insufficient refinement of integrated pipeline layout, and difficulty in guaranteeing construction quality and aesthetic appeal. Furthermore, traditional construction relies on on-site piecemeal operations, leading to high labor costs, long construction periods, and frequent high-altitude work, posing significant safety hazards.

[0003] In recent years, the application of BIM (Building Information Modeling) technology in the design phase of mechanical, electrical, and plumbing systems has become increasingly widespread, optimizing pipeline layout through 3D modeling and clash detection. However, in the construction phase, BIM technology is largely limited to drawing refinement and simulation, and has not yet formed a technological system deeply integrated with modular construction, prefabrication, and overall installation. Especially for the dense mechanical and electrical pipeline systems in large public buildings, traditional construction methods struggle to achieve efficient segmented prefabrication, precise hoisting, and rapid assembly, leading to significant material waste and repetitive construction, thus hindering construction efficiency and cost control. Summary of the Invention

[0004] The technical problem to be solved by this invention is to provide a modular construction method for building electromechanical pipelines based on BIM technology. By driving pipeline segmentation, prefabrication and overall installation through a three-dimensional model, it solves the problems of low efficiency, high cost and poor accuracy in traditional construction, while improving the overall quality and construction safety of electromechanical pipeline systems.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0006] A modular construction method for building electromechanical pipelines based on BIM technology, the method comprising:

[0007] Step S1: Use BIM technology to comprehensively arrange the pipelines in the project, make adjustments based on the cross collisions that occur during installation, and design supports and verify the stress on the supports.

[0008] Step S2: Design the integrated pipeline of the area in detail according to the nodes in the BIM software and divide it into a unit of electromechanical pipeline installation module, and generate the three-view drawing of the pipeline module;

[0009] Step S3: Prefabricate the modules according to the BIM module drawings. After prefabrication, assemble the segmented integrated electromechanical pipelines on the assembled frame and then transport them.

[0010] Step S4: Plan the overall installation scheme for the pipeline installation area, verify the load-bearing capacity of the floor slab or beam, and carry out the segmented hoisting or lifting of pipeline unit modules and the overall splicing of modules.

[0011] Furthermore, in step S1, BIM technology is used to conduct detailed design of the project pipelines, perform clash analysis, and take the shared use of integrated pipeline supports as the basic principle. According to the integrated electromechanical pipeline layout principle, from top to bottom, there are power and weak current cable trays, pressure pipelines, natural gravity drainage pipelines, and ventilation pipelines. Based on this, the unit weight of each electromechanical pipeline in the integrated electromechanical pipeline model is calculated to calculate the total unit weight of the integrated electromechanical pipeline. Based on the total unit weight of the integrated pipeline and the spacing requirements of each pipeline system, the shared supports of the integrated pipeline are designed and the support load is calculated, and the support form is verified.

[0012] Furthermore, the method also includes: selecting the corresponding area for overall pipeline installation according to the characteristics of the project, designing and dividing the integrated pipeline in the area according to the nodes, assembling the integrated electrical cable trays, water pipes, air ducts and electromechanical pipelines into a unit electromechanical pipeline installation module according to the detailed model, verifying each divided module, generating three views of the pipeline module, exporting detailed drawings based on the model results, and guiding on-site implementation.

[0013] Furthermore, the specific processing of the stent includes:

[0014] The support frame is fabricated first according to the BIM module drawings. There are two fabrication methods for the support frame. Method 1 is to make the chain hoist fixing point at the top of the column according to the support frame specifications of the detailed design. A 16mm diameter round hole is drilled in advance with a bench drill as required to fix the chain hoist. The support frame and the crossbeam are welded into a whole.

[0015] Method 2: Two 14.2mm diameter holes should be drilled in advance at the lower end of the support column as required, for connection with the pre-drilled holes on the angle steel on the crossarm. The crossarm is not welded to the column. A 125*125*12mm angle steel should be fully welded to both ends of the crossarm. Two 14.2mm diameter holes should be drilled in advance on the angle steel as required, for connection with the pre-drilled holes on the column.

[0016] Further processing of the piping modules specifically includes:

[0017] According to the BIM module drawings, modules are prefabricated. During module assembly, all flanges must ensure that the upper and lower holes are perpendicular to each other to allow for proper splicing of the front and rear flanges. After module prefabrication, finished product protection is implemented. After module insulation and labeling are installed, the module is wrapped three times with plastic film except for the interface area and secured with plastic tape. After the module components are prefabricated in the processing workshop, the segmented integrated electromechanical piping is assembled on the prefabricated assembly frame, and the piping system is connected and secured to the integrated support. After assembly, a custom-made forklift is used for horizontal transport to the installation area.

[0018] Furthermore, modular pipeline installation specifically includes:

[0019] For the overall installation area of ​​the pipeline, plan the overall installation scheme, review the total lifting mass of the integrated electromechanical pipeline in sections, review the load-bearing capacity of the floor slab or beam, and select lifting tools or equipment with sufficient lifting capacity and safety factor.

[0020] The overall hoisting construction of electromechanical pipelines involves hoisting modular electromechanical pipelines using chain hoists. Before hoisting, the lifting points are set according to the plan. After the installation of the lifting points is completed, the stability of the lifting points should be strictly checked. Depending on the form of the bracket processing, there are two hoisting methods, which are implemented according to the actual site conditions. Method 1 requires the reservation of chain hoist space and is mainly used for pipeline modules fixed to the beam side in confined areas. Method 2 does not require the reservation of chain hoist space and is mainly used for pipeline modules fixed to the ceiling in confined areas.

[0021] According to the detailed layout plan, first install fixed support columns on the top slab or side beam of the building structure, connect the pipes on the vertical ground and fix them to the crossbeams. After the pipes are hoisted into place, fix the support crossbeams and columns with bolts. The pipe hoisting is then complete.

[0022] Furthermore, in step S4:

[0023] For the segmented hoisting of integrated electromechanical pipelines, after the first segment is accurately hoisted into place, the second segment is hoisted. The vertical height and horizontality of the second segment are controlled to ensure accurate connection of all pipeline interfaces. After the connection of the first and second segments is completed, the third, fourth, and subsequent segments of the integrated electromechanical pipelines are hoisted as a whole and connected to the previous segment. During this stage, the hoisting and positioning of the first segment of the integrated electromechanical pipelines is controlled to ensure that it does not deviate from the set position and elevation.

[0024] Furthermore, the modular electromechanical pipeline overall lifting construction specifically includes:

[0025] The overall lifting construction of electromechanical pipelines involves lifting the pipelines as a whole using a lifting assembly device. This device consists of five parts: a base, a hydraulic lifting device, a three-layer, four-way fine-tuning platform, a fine-tuning hydraulic system, and an electrical control system. The entire hydraulic lifting device uses a scissor lift mechanism, with the scissor lift portion measuring 180mm×65mm×6mm and the hydraulic cylinders measuring φ120×2mm. It is equipped with an overflow valve and an explosion-proof valve. The maximum lifting height of the entire hydraulic lifting device is 4000mm, with a load-bearing capacity of 2500kg. The platform has load-bearing and directional adjustment functions, allowing for four-way fine-tuning with a range of up to 10cm and a control error within 1.5mm.

[0026] The above-described solution of the present invention has at least the following beneficial effects:

[0027] By using BIM technology to achieve 3D modeling and collision analysis of electromechanical pipelines, pipeline layout paths can be optimized in advance, reducing rework caused by design conflicts during construction and shortening the construction period by about 40%-60%.

[0028] Modular prefabrication and ground assembly transform a large number of high-altitude operations into ground operations. Combined with overall hoisting or lifting technology, multiple pipelines can be installed in a single hoisting operation, increasing construction efficiency by more than 80%, which is especially suitable for large buildings with a floor height of more than 8m.

[0029] Modular segmentation and shared support design reduce support material usage by about 30%, and reduce waste rate through precise prefabrication. Forklift horizontal transfer and overall installation technology reduce the number of manual climbing operations by 85%, thereby reducing safety protection costs and labor costs.

[0030] BIM model-driven modular segmentation and detailed design ensure that the flange interface verticality error is ≤±1.5mm and the bracket positioning accuracy error is ≤±2mm, significantly improving pipeline alignment accuracy.

[0031] The hydraulic jacking device, combined with a four-way micro-adjustment platform (accuracy ≤1.5mm), enables precise docking after the module is lifted, avoiding common problems such as interface misalignment and leakage in traditional bulk construction.

[0032] Modular construction reduces the frequency of high-altitude operations. Combined with trial lifting and testing before overall hoisting (static observation of modules 30cm off the ground), it significantly reduces safety hazards such as falls and collisions. Based on the BIM model, it generates module three-view drawings, transportation sequence lists, and digital delivery documents, realizing closed-loop data management of the entire process from design, prefabrication to installation. Attached Figure Description

[0033] Figure 1 This is a flowchart illustrating a modular construction method for building electromechanical pipelines based on BIM technology, provided by an embodiment of the present invention. Detailed Implementation

[0034] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0035] like Figure 1 As shown, an embodiment of the present invention proposes a modular construction method for building electromechanical pipelines based on BIM technology. The method first takes the sharing of integrated pipeline supports as the basic principle and the layout of integrated pipelines as the overall principle. It uses BIM technology to carry out the detailed design of the project's pipelines and conducts collision analysis. According to the characteristics of the project, it selects a suitable area for the overall installation of pipelines, and designs the integrated pipelines in the area in detail according to the nodes and divides them into specific units.

[0036] This construction method involves prefabricating modular pipes according to the requirements of BIM module drawings, assembling the segmented integrated pipes on the prefabricated assembly frame, and then using a customized forklift for horizontal transport to the installation area.

[0037] This construction method for pipeline module installation employs two overall installation approaches: modular pipeline hoisting construction, which involves hoisting the assembled modular pipeline components using a chain hoist; and electromechanical pipeline lifting construction, which utilizes a designed integrated pipeline lifting and assembly device to lift the modular pipeline components as a whole. These approaches are applied to pipeline construction in different areas.

[0038] Process principle:

[0039] This construction method first employs BIM simulation. First, BIM technology is used to comprehensively plan the pipeline layout, adjusting for intersections and other issues encountered during installation, and designing and verifying the load-bearing capacity of supports. Next, the comprehensive pipeline system in the area is designed in detail in BIM software according to nodes, dividing it into individual MEP (Mechanical, Electrical, and Plumbing) installation modules, generating three-view drawings for each module. Then, modules are prefabricated according to the BIM module drawings. After prefabrication, the segmented MEP pipelines are assembled on prefabricated assembly frames and transported. Next, an overall installation plan is planned for the entire pipeline installation area, and the load-bearing capacity of floor slabs or beams is verified. Finally, the pipeline unit modules are hoisted or lifted in sections, and the modules are then assembled as a whole.

[0040] Detailed design of integrated pipeline model:

[0041] First, BIM technology is used to conduct a detailed design of the project's pipelines, including clash analysis. Based on the principle of shared pipe supports, and following the layout principles of integrated electromechanical pipelines, the general order from top to bottom is: power and communication cable trays, pressure pipes, gravity drainage pipes, and ventilation pipes. The unit weight of each electromechanical pipeline within the integrated pipeline model can be calculated, leading to the total unit weight of the integrated electromechanical pipeline. Then, based on the total unit weight of the integrated pipeline and the spacing requirements of each pipeline system (considering the mass of media such as water and cables required for the pipeline to fulfill its function), shared supports for the integrated pipeline are designed, and support load calculations are performed. The support type is then verified.

[0042] Based on the characteristics of the project, select a suitable area for overall pipeline installation. Design and divide the integrated pipeline in the area according to the nodes. Assemble the integrated electrical cable trays, water pipes, air ducts and other electromechanical pipelines into a unit electromechanical pipeline installation module according to the detailed model. Verify each divided module, produce three-view drawings of the pipeline module, and export detailed drawings based on the model results to guide on-site implementation.

[0043] Modular piping fabrication and ground assembly:

[0044] First, fabricate the support structure based on the BIM module drawings. The support structure can be fabricated in two ways:

[0045] Method 1: Fabricate the chain hoist fixing point at the top of the column according to the specifications of the bracket in the detailed design. Drill a 16mm diameter hole in advance using a bench drill as required to fix the chain hoist. Weld the bracket and crossarm together as a whole.

[0046] Method 2: Two 14.2mm diameter holes should be pre-drilled at the lower end of the support column using a bench drill as required, for connection to the pre-drilled holes on the angle steel of the crossarm. The crossarm of the support cannot be welded to the column. A 125×125×12mm angle steel should be fully welded to both ends of the crossarm. Two 14.2mm diameter holes should be pre-drilled on the angle steel using a bench drill as required, for connection to the pre-drilled holes on the column.

[0047] Pipe module fabrication:

[0048] Prefabricate the modules according to the BIM module drawings. During module assembly, ensure all flanges have vertical holes (checked using a plumb line) and that the front and rear flanges are properly joined. After module prefabrication, protect the finished product. After module insulation and labeling are installed, wrap the module with plastic film three times (except for the interface areas) and secure it with plastic tape.

[0049] Assembly of modular piping:

[0050] After the modular components are prefabricated in the processing workshop, the segmented integrated electromechanical piping is assembled on the prefabricated assembly rack, and the piping system is connected and fixed to the integrated support. After assembly, a custom-made forklift is used for horizontal transport to the installation area.

[0051] Modular piping installation:

[0052] For the overall pipeline installation area, a comprehensive installation plan was developed. The total lifting mass of the integrated electromechanical pipeline sections was carefully reviewed, as was the load-bearing capacity of the floor slabs or beams. Lifting equipment or tools with sufficient lifting capacity and a certain safety factor were selected. This project primarily utilizes two types of overall installation.

[0053] Modular electromechanical pipeline overall hoisting construction:

[0054] The overall hoisting of electromechanical pipelines involves using chain hoists to lift modular electromechanical pipelines. Before hoisting, four lifting points should be set up according to the plan. After the installation of the lifting points, their stability should be strictly checked to prevent overturning during hoisting. Depending on the form of the support structure, there are two hoisting methods, which are implemented mainly based on the actual site conditions:

[0055] Method 1: Space needs to be reserved for the chain hoist, mainly used for pipe modules fixed to the beam side in confined areas.

[0056] Method 2: No need to reserve space for the chain hoist, mainly used for pipe modules fixed to the top plate in confined areas.

[0057] One method involves the overall hoisting and installation of modular electromechanical pipelines. The other method involves first installing fixed support columns on the top slab or side beams of the building structure according to the detailed layout drawings, then connecting the pipelines on the ground vertically and fixing them to the crossbeams. After the pipelines are hoisted into place, the support crossbeams and columns are fixed with bolts, and the pipeline hoisting is completed.

[0058] During hoisting operations, proper signaling and command are essential. Dedicated personnel should be on-site to monitor the work and prevent hoisting accidents. During each hoisting operation, the principle of trial hoisting should be strictly followed. The hoisting should be performed 30cm off the ground to ensure safety before continuing the upward lift.

[0059] For integrated electromechanical pipelines installed in sections, after the first section is accurately hoisted into place, the second section can be hoisted. It is crucial to control the vertical height and horizontal alignment of the second section relative to the first, ensuring accurate connection of all pipeline interfaces. Only after the first and second sections are successfully connected can the third, fourth, and subsequent sections be hoisted and connected to the previous sections. During this stage, the placement of the first section must be strictly controlled to prevent deviation from the designated position and elevation; otherwise, it may lead to increased deviations in subsequent sections and consequently, a widening of the overall deviation.

[0060] Modular electromechanical pipeline overall lifting construction:

[0061] The integrated lifting construction of electromechanical pipelines utilizes a comprehensive pipeline lifting and assembly device for overall pipeline lifting, primarily for pipeline modules in wide areas. This device consists of five parts: a base, a hydraulic lifting device, a three-layer, four-way fine-tuning platform, a fine-tuning hydraulic system, and an electrical control system. The entire hydraulic lifting device employs a scissor lift mechanism. The scissor lift section preferably uses Q345 high-strength rectangular tubing, measuring 180mm×65mm×6mm. The hydraulic cylinders are φ120×2 and equipped with overflow valves, explosion-proof valves, and other protective measures. The solenoid valves are custom-designed 24V DC valves, and the sealing rings are preferably imported from Japan (NOK). The gear pump is preferably E314. The main hydraulic system operates at a pressure of 6MPa-18MPa. The maximum lifting height of the entire hydraulic lifting device is 4000mm, with a load capacity of 2500kg. The platform has load-bearing and directional adjustment capabilities, allowing for four-way fine-tuning with a range of up to 10cm and a control error within 1.5mm, achieving precise pipeline alignment.

[0062] The integrated electromechanical pipeline module uses forklifts or other transport equipment to place the module to be lifted onto the lifting device platform and secure it with the fixing piles on both sides. After confirming that the module to be lifted is securely fixed, the support legs of the lifting device are unlocked, and the lifting button on the control panel or remote control is pressed to lift the module using the hydraulic lifting platform.

[0063] The pipeline modules are transported by forklift and placed on a lifting platform for fixation. They are then lifted to a designated height by an overall lifting device for interface splicing, ultimately achieving flange splicing and bracket fixation. The entire lifting process requires only 4 workers, saving 50% of labor compared to traditional lifting methods, reducing the number of times workers need to climb to heights by 85%, and effectively reducing construction safety hazards.

[0064] During the lifting process, pay attention to the lifting speed to ensure a smooth lifting. Stop lifting when the height is near the designated level. After determining the front and rear heights, slowly resume lifting to the height of the front module.

[0065] This construction method must comply with relevant national standards and industry standards such as the "Code for Acceptance of Construction Quality of Building Water Supply, Drainage and Heating Engineering" (GB 50242-2002), the "Code for Design of Industrial Metal Pipelines" (GB 50316-2000), and the "Technical Code for Safety of Temporary Power Supply at Construction Sites" (JGJ46-2005).

[0066] Taking a project in a certain region as an example, traditional water pipe construction requires 15 skilled workers for 60 days, with each worker earning 300 yuan per day. Using a modular construction method, only 15 skilled workers are needed for 14 days, resulting in a total saving of 207,000 yuan in labor costs and 46 days in construction time compared to the traditional method. The benefit comparison is shown in the table below.

[0067] In a certain region's Phase II project, this technology reduced labor costs by 76% and material waste by 42%. All pipeline connections used flange connections. Calculations showed that the savings in labor costs exceeded the increased material costs. The use of multi-layer, multi-specification pipeline hoisting increased the total amount of pipeline lifted in a single operation, reduced the number of hoisting operations, shortened construction time by 84%, reduced the number of high-altitude operations by 85%, and reduced quality issues by 70%. Furthermore, this technology allows for the early intervention of electromechanical work even when a suitable work surface is unavailable, ensuring a smooth construction schedule and avoiding the risks associated with overlapping work between different disciplines.

[0068] The modular construction method for pipelines based on BIM technology utilizes BIM technology to comprehensively arrange the pipelines of the project. The comprehensive pipelines in the area are designed in detail according to nodes in BIM software and divided into a unit of electromechanical pipeline installation modules. Then, the pipeline unit modules are hoisted or lifted in sections and the modules are spliced ​​as a whole. While meeting the on-site use conditions, it reduces the project cost and ensures compliance with green construction indicators.

[0069] Application examples:

[0070] General contracting project for the construction and management of the new T3 terminal building in the third phase expansion of an airport:

[0071] Located in a certain area, the project has a total construction area of ​​158,497 m². By employing this construction method during the project's construction process, the project improved construction quality, demonstrated significant technical, economic, and social benefits, and has strong potential for wider application.

[0072] A project in a certain region with an annual production capacity of 100,000 tons of green high-end aluminum-based materials:

[0073] The total construction area is approximately 38,617.7 square meters, with a construction period from May 13, 2024 to February 7, 2025. The project mainly includes three individual projects: a production plant, a comprehensive building, and a gatehouse, with a total construction area of ​​approximately 38,000 square meters. By applying this construction method, the construction period is shortened, it meets the requirements of green construction, saves costs, and has good technical, economic, and social benefits, making it highly scalable.

[0074] Phase II project in a certain region:

[0075] The total construction area is 611,034 m², mainly divided into three functional areas: exhibition hall, conference hall, and hotel. The exhibition hall consists of 7 columned exhibition halls, 2 column-free exhibition halls, connecting bridges, and the east, north, and south entrance halls. The average floor height of all areas in the exhibition halls, conference center, and entrance halls is over 8 meters, with over 40% of the areas having a floor height of over 10 meters. The second phase of the A New International Exhibition Center project, through the application of BIM-based modular pipeline construction technology, not only effectively improved construction efficiency and reduced construction risks, but also reduced material waste, improved construction quality, and achieved large-scale high-altitude operations.

[0076] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A modular construction method for building electromechanical pipelines based on BIM technology, characterized in that, The method includes: Step S1: Use BIM technology to comprehensively arrange the pipelines in the project, make adjustments based on the cross collisions that occur during installation, and design supports and verify the stress on the supports. Step S2: Design the integrated pipeline of the area in detail according to the nodes in the BIM software and divide it into a unit of electromechanical pipeline installation module, and generate the three-view drawing of the pipeline module; Step S3: Prefabricate the modules according to the BIM module drawings. After prefabrication, assemble the segmented integrated electromechanical pipelines on the assembled frame and then transport them. Step S4: Plan the overall installation scheme for the pipeline installation area, verify the load-bearing capacity of the floor slab or beam, and carry out the segmented hoisting or lifting of pipeline unit modules and the overall splicing of modules.

2. The modular construction method for building electromechanical pipelines based on BIM technology according to claim 1, characterized in that, In step S1, BIM technology is used to conduct detailed design of the project pipelines and perform clash analysis. Based on the principle of shared pipe support, and in accordance with the layout principle of integrated electromechanical pipelines, from top to bottom, there are power and communication cable trays, pressure pipes, gravity drainage pipes, and ventilation pipes. Based on this, the unit weight of each electromechanical pipeline in the integrated electromechanical pipeline model is calculated to calculate the total unit weight of the integrated electromechanical pipeline. Based on the total unit weight of the integrated pipeline and the spacing requirements of each pipeline system, the shared support for the integrated pipeline is designed and the support load is calculated. The support form is then verified.

3. The modular construction method for building electromechanical pipelines based on BIM technology according to claim 2, characterized in that, The method also includes: selecting the corresponding area for overall pipeline installation according to the characteristics of the project, designing and dividing the integrated pipeline in the area according to the nodes, assembling the integrated electrical cable trays, water pipes, air ducts and electromechanical pipelines into a unit electromechanical pipeline installation module according to the detailed model, checking each divided module, producing three views of the pipeline module, exporting detailed drawings based on the model results, and guiding on-site implementation.

4. The modular construction method for building electromechanical pipelines based on BIM technology according to claim 3, characterized in that, The specific processing of the support includes: The support frame is fabricated first according to the BIM module drawings. There are two fabrication methods for the support frame. Method 1 is to make the chain hoist fixing point at the top of the column according to the support frame specifications of the detailed design. A 16mm diameter round hole is drilled in advance with a bench drill as required to fix the chain hoist. The support frame and the crossbeam are welded into a whole. Method 2: Two 14.2mm diameter holes should be drilled in advance at the lower end of the support column as required, for connection with the pre-drilled holes on the angle steel on the crossarm. The crossarm is not welded to the column. A 125*125*12mm angle steel should be fully welded to both ends of the crossarm. Two 14.2mm diameter holes should be drilled in advance on the angle steel as required, for connection with the pre-drilled holes on the column.

5. The modular construction method for building electromechanical pipelines based on BIM technology according to claim 1, characterized in that, The fabrication of the piping module specifically includes: According to the BIM module drawings, modules are prefabricated. During module assembly, all flanges must ensure that the upper and lower holes are perpendicular to each other to allow for proper splicing of the front and rear flanges. After module prefabrication, finished product protection is implemented. After module insulation and labeling are installed, the module is wrapped three times with plastic film except for the interface area and secured with plastic tape. After the module components are prefabricated in the processing workshop, the segmented integrated electromechanical piping is assembled on the prefabricated assembly frame, and the piping system is connected and secured to the integrated support. After assembly, a custom-made forklift is used for horizontal transport to the installation area.

6. The modular construction method for building electromechanical pipelines based on BIM technology according to claim 5, characterized in that, Modular pipeline installation, specifically including: For the overall installation area of ​​the pipeline, plan the overall installation scheme, review the total lifting mass of the integrated electromechanical pipeline in sections, review the load-bearing capacity of the floor slab or beam, and select lifting tools or equipment with sufficient lifting capacity and safety factor. The overall hoisting construction of electromechanical pipelines involves hoisting modular electromechanical pipelines using chain hoists. Before hoisting, the lifting points are set according to the plan. After the installation of the lifting points is completed, the stability of the lifting points should be strictly checked. Depending on the form of the bracket processing, there are two hoisting methods, which are implemented according to the actual site conditions. Method 1 requires the reservation of chain hoist space and is mainly used for pipeline modules fixed to the beam side in confined areas. Method 2 does not require the reservation of chain hoist space and is mainly used for pipeline modules fixed to the ceiling in confined areas. According to the detailed layout plan, first install fixed support columns on the top slab or side beam of the building structure, connect the pipes on the vertical ground and fix them to the crossbeams. After the pipes are hoisted into place, fix the support crossbeams and columns with bolts. The pipe hoisting is then complete.

7. The modular construction method for building electromechanical pipelines based on BIM technology according to claim 6, characterized in that, In step S4: For the segmented hoisting of integrated electromechanical pipelines, after the first segment is accurately hoisted into place, the second segment is hoisted. The vertical height and horizontality of the second segment are controlled to ensure accurate connection of all pipeline interfaces. After the connection of the first and second segments is completed, the third, fourth, and subsequent segments of the integrated electromechanical pipelines are hoisted as a whole and connected to the previous segment. During this stage, the hoisting and positioning of the first segment of the integrated electromechanical pipelines is controlled to ensure that it does not deviate from the set position and elevation.

8. The modular construction method for building electromechanical pipelines based on BIM technology according to claim 7, characterized in that, The modular electromechanical pipeline overall lifting construction specifically includes: The overall lifting construction of electromechanical pipelines involves lifting the pipelines as a whole using a lifting assembly device. This device consists of five parts: a base, a hydraulic lifting device, a three-layer, four-way fine-tuning platform, a fine-tuning hydraulic system, and an electrical control system. The entire hydraulic lifting device uses a scissor lift mechanism, with the scissor lift portion measuring 180mm×65mm×6mm and the hydraulic cylinders measuring φ120×2mm. It is equipped with an overflow valve and an explosion-proof valve. The maximum lifting height of the entire hydraulic lifting device is 4000mm, with a load-bearing capacity of 2500kg. The platform has load-bearing and directional adjustment functions, allowing for four-way fine-tuning with a range of up to 10cm and a control error within 1.5mm.

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