A BIM deepening method for rapid construction of an automobile factory building

Abstract

The application is a BIM deepening method for rapid construction of an automobile factory building, comprising: step 1, standardizing BIM team management, determining a BIM project leader and a BIM engineer; step 2, site planning, BIM deepening design, collision detection and design optimization, 4D progress simulation; step 3, parameterized establishment of family library models, and sharing of parameters; step 4, rapid deepening by using technologies such as Dynamo; step 5, rapid auxiliary deepening by using secondary development plug-ins; step 6, a lightweight browsing and checking model platform; step 7, prefabricated processing based on BIM technology; and step 8, BIM data delivery. In the BIM deepening design of a new energy factory building, the application increases the method of rapid modeling construction, and through parameterized programming, Dynamo technology or other same type rapid modeling software, rapid remodeling is realized, so that the deepening design time and construction period are greatly reduced, and the rapidity, safety and quality of construction are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of industrial plant construction technology, specifically a BIM detailing method for rapid construction of automobile plants. Background Technology

[0002] With the national promotion of "green and low-carbon" development, new energy vehicles are increasingly favored by consumers. Correspondingly, the construction of new energy vehicle factories in the domestic market is also increasing. New energy vehicle factory projects typically have tight schedules; the internal pipelines are complex, and the construction drawings produced by design institutes, including individual professional CAD drawings and pipeline summary cross-sections, cannot be directly used for construction. If these drawings are used directly for construction, problems will arise during the process, such as collisions between pipelines from different systems, collisions between pipelines and buildings or structures, and errors in pipeline location and elevation. Direct construction will result in significant rework, waste of materials, increased labor and equipment costs, and delays in the construction period, causing unpredictable economic losses. Currently, to ensure the smooth implementation of general contracting projects and meet increasingly faster construction schedules, there is an urgent need for rapid construction BIM-based detailed design methods for automobile factory buildings. However, there are currently no corresponding rapid detailed design methods available in China. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned defects and propose a rapid construction method for automobile factory buildings based on BIM technology that is conducive to standardization.

[0004] To achieve the above objectives, the present invention is implemented as follows:

[0005] A BIM detailing method for rapid construction of automobile factories, including

[0006] Step 1: Standardize BIM team management, including identifying the BIM project manager and BIM engineers;

[0007] Step 2: Site planning, BIM detailed design, clash detection, 4D progress simulation:

[0008] Before construction begins, a 3D model of the construction site is established. Based on this model, temporary water and electricity supplies, temporary roads, temporary facilities, construction machinery, construction areas, processing areas, material storage yards, and site fencing for each construction stage are added. Simulation analysis, spatial optimization, and scheme comparison are conducted. Simulations are performed for key and challenging construction schemes. A model of the automobile factory is built based on the design drawings. The rationality of the design is assessed, spatial layout is optimized, clash detection is performed, and the design is refined. Progress simulation video files are developed according to project schedule requirements using professional construction simulation software; the perspective and effects need to be communicated with the client. Coordination between design and construction disciplines is enhanced. The model coordinates the spatial layout of each discipline, and clash detection coordinates their construction. Clash data reflects the refined design results. A bill of quantities is generated from the model. 2D detailed construction drawings are generated from the model.

[0009] Step 3: Parameterize and build the family library model, and share the parameters;

[0010] Parametric families are divided into two categories: standard parametric families and custom parametric families. Standard parametric families are families created using predefined standard data series as driving parameters. Each family type corresponds to a unique data set, and all family types are parameter-driven based on the same model. They are used to create families of equipment or components with standard specifications and dimensions. Custom parametric families are families created for non-standard equipment or components. Based on the same model, parameters are created for dimensions that may require user customization in non-standard equipment or components. These parameters should be directly modified by the user after loading the custom parametric family according to the actual needs of the project to obtain non-standard equipment or components suitable for the project. Custom parametric families can be seen as a special case of standard parametric families.

[0011] There are two parameter-driven methods for standard parametric families: one is to use data files for parameter driving; the other is to embed data directly within the family type. Data files should be used for parameter driving, as this method is suitable for families with a large number of family types, facilitates centralized data management and model debugging, and is frequently used in the creation of standard parametric families. When using this method, it is important to note that the data must be copied to a specific folder; otherwise, parameter driving will not work. In the creation of standardized families with a small number of family types, the method of embedding data within the family type, which offers greater family versatility, should be used.

[0012] Data files should be created in two formats: TXT and CSV, depending on the specific needs of the data family being created.

[0013] The steps for creating a family in Revit are as follows: First, create a data table containing the data corresponding to each type of the family to be created; second, during the model building process, create parameters that correspond one-to-one with the parameters in the data table; finally, debug each set of type parameters to ensure that each family type can be parameterized and driven.

[0014] Using shared parameters, families and label families can call these parameters simultaneously; the family file can be improved with relevant data information through shared parameters, and the label family should be consistent with the target family type. By editing the label, the same shared parameters as the target family can be added to the category parameters. The order and arrangement of these shared parameters can be edited in the label parameter column, such as adding parentheses, spaces or line breaks, to conform to the relevant model file requirements in terms of format.

[0015] Step 4: Utilize Dynamo technology for rapid refinement;

[0016] Utilize Dynamo visual programming technology to analyze requirements.

[0017] Step 4.1: Obtain the 3D view to be exported;

[0018] Step 4.2: Export the acquired 3D view;

[0019] Step 4.2.1: Obtain the required views: To filter the views to be exported, the view names should first be appended with the suffix "-Navisworks". The names of these views should be obtained through the node Python Script in the Revit plugin Dynamo.

[0020] Step 4.2.2: Export the acquired 3D view: Select the folder to which you want to export the view, call the API to execute the batch export command, and obtain the results by running the commands on the nodes.

[0021] Step 4.2.3, Family Parameter Information Exchange: Using Dynamo visual programming technology, the first step is to obtain the required family parameters; then, return the obtained values ​​to the corresponding parameters.

[0022] Step 4.2.4, Batch Placement of Room Names: Using Dynamo visual programming technology, obtain the 2D drawings of the corresponding floors, query the layer name of "Room Name" and the location data of the block of "Room Name", and put the corresponding return values ​​of these two sets of data into the model text.

[0023] Step 4.2.5, Batch Placement of Column Planes in 3D: Using Dynamo visual programming technology, add column number text models to the RVT model. Export NWC through Navisworks to quickly query the location information of collision points and provide accurate feedback for timely modifications. First, create model text for instance family parameters, containing 4 column faces and one plane. Second, obtain the coordinates of the points where the grid lines intersect pairwise, as well as the grid line number, such as "A-1", and fill these two sets of information into the text model.

[0024] Step 4.2.6: Batch adjust lamp height based on beam bottom height: Using Dynamo visual programming technology, obtain the height of the bottom of the inclined beam, form a surface from multiple sets of lines, obtain the XY coordinates of the lamp, calculate the Z value, and fill the Z value into the lamp height. Lamps of different heights can be placed in batches based on the bottom mark of the inclined beam.

[0025] Step 4.2.7 Batch Print PDF Drawings: Based on the Print.ByViewSheetSet node, select the output PDF format in Printer, select the save path, select the range of PDF drawings to be exported in Sheet Set, select the default format in PrintSetting, and click Run;

[0026] Step 5: Utilize secondary development plugins to quickly assist in further development;

[0027] Step 5.1: In automobile factory projects and projects with short construction periods and complex individual models, secondary development plugins should be used to quickly model and assist in the refinement of pipelines; specifically, commonly available third-party secondary development plugins should be used.

[0028] Step 5.2: Place electrical boxes in batches using secondary development software: When a project requires the placement of a large number of electrical boxes and cabinets, a secondary development plugin for Revit or other rapid modeling software should be used.

[0029] Step 5.2.1: First, pick up the imported electrical CAD drawings, select the electrical cabinets to be converted, select the corresponding 3D family model, and perform a quick conversion. After the conversion is complete, manually adjust the position of the offset cabinets. When the materials department provides the manufacturer's detailed drawings of electrical cabinets, the actual dimensions of the cabinets in the model should be added and modified. After the modification is completed, the cabinets should be arranged in the model to check for collisions and reasonable door opening distances.

[0030] Step 5.3: Quickly arrange supports and hangers using secondary development plugins: In projects with multiple systems, large-size pipework, or complex process systems in the factory, when we need to add supports and hangers to the pipelines in the model, we should use Revit plugins or other third-party software plugins to arrange supports and hangers in batches. First, we should select profiles that meet the stress conditions, and reserve the lateral length of the supports and the spacing of the supports according to the construction instructions and relevant specifications. We should manually handle different locations and complex spaces. Before the civil engineering contractor starts construction, we should provide the relevant support embedded plate construction plan and send it to the owner for review.

[0031] Step 5.4: Use secondary development plugins to quickly bend and connect pipelines: When there are a large number of pipelines in the project model that need to bend, break, or be connected at specified angles, third-party software plugins should be used to quickly bend, break, bend, and connect pipelines at angles.

[0032] Step 5.5: Use secondary development plugins for rapid multi-pipe marking: In order to ensure the neatness of the plan drawing and shorten the drawing output time by quickly marking, relevant plugins on the market should be used to quickly mark multiple pipes. Unnecessary marking actions should be reduced to ensure the cleanliness of the drawing.

[0033] Step 5.6: Using secondary development plugins to create and mark openings in the building model: By using relevant secondary development plugins, the building model can be quickly made open. First, open the building model, link the electromechanical model, select the wall where the opening is needed, and click on the pipe where the opening is needed. The software will automatically recognize and make the opening according to the previously set opening rules.

[0034] Step 5.7: Use software to refine and mark the opening information, and manually adjust the marking positions at complex sections of the pipework assembly;

[0035] Step 6: Lightweight browsing and inspection of the model platform;

[0036] Step 6.1: Improve BI coordination using Navisworks project review software: Integrate design and construction data into a single model, identify and resolve conflicts and interference issues before construction, and integrate collaborative data from multiple fields for better control of outcomes;

[0037] Step 6.2: Use Navisworks to perform collision detection on the model, record the viewpoints of the collision interference points and save the files, and promptly report back to the relevant BIM personnel;

[0038] Step 6.3: When transmitting the model to the owner, it should be saved as an NWC file; when transmitting it to the construction site, it should be integrated into an NWD file format.

[0039] Step 6.4, Browsing the model based on the lightweight platform: Upload the integrated NWD file to the third-party lightweight platform through a browser, and share the completed model link with relevant professional engineers so that construction personnel can view the project model on the construction site via mobile devices;

[0040] Step 7. Prefabrication based on BIM technology;

[0041] Step 7.1, Prefabricated Supports: After completing the detailed design of the integrated pipeline system, select support profiles and forms that meet the structural requirements. Use third-party secondary development plugins such as Hibim, Modeling Master, and Magicad For Revit to create parametric families of supports in batches and load them into the model. Adjustments should be made for pipelines in different situations. Finally, the supports should be sectioned, dimensions marked, and drawings generated.

[0042] Step 7.2: After completing the drawing work, an internal construction meeting and a meeting with the subcontracting teams should be held to discuss and review the drawings, make revisions and improvements, and finally issue the drawings to the subcontracting team leaders through the project document control system.

[0043] Step 7.3, Prefabricated Valve Assemblies: Further refine the equipment valve assembly, selecting suitable pipe elbows and valve accessories. Maintain the required spacing between valves. After refinement, generate drawings. Hold a prefabrication briefing meeting to address any issues raised. The first valve assembly should be inspected on-site. Once confirmed to be correct, it should be signed off by the construction technician, BIM engineer, and subcontractor's technical supervisor before mass prefabrication.

[0044] Step 7.4, Prefabricated Air Ducts: Air ducts used in factory production must be standardized, mass-produced, and customized, and meet load specifications. After the model pipeline integration is completed, the prefabricated air ducts are disassembled using a secondary development plugin. The positions of interference and collision between air outlets and flanges are manually adjusted. After completion, the exploded view of the prefabricated pipe section and the material list are exported. A meeting is held to explain the construction of the model and prefabricated air ducts.

[0045] Step 8, BIM Data Delivery:

[0046] Step 8.1: Building Information Modeling (BIM) deliverables should be delivered according to the model standards of each design stage, and should be easy to archive and preserve, ensure data security, and ensure the accuracy and completeness of deliverable information; the content and form of the final deliverables should be specified in the project tender and contract, and the deliverables should be delivered in the agreed format;

[0047] Step 8.2: The publishing format and form of all BIM models, output data, and drawings for the project should comply with the requirements of the BIM implementation plan. Furthermore, the processes for verification, approval, publishing, and archiving should also be carried out in accordance with the BIM implementation plan. BIM model data should be reviewed and verified before sharing or publishing. File formats and naming rules should conform to the project's BIM implementation plan; model files should be the latest version, containing all modifications and updates.

[0048] Step 8.3, Data Security: No one other than the person in question may be allowed to access the model information data; before the model is delivered to the recipient, the provider should first conduct an internal audit of the model data and the interoperable data it generates;

[0049] Step 8.4, Data Verification and Acceptance: Before data delivery and exchange, correctness, timeliness, and consistency checks should be performed; the recipient should confirm and verify the data before using it; the model data should meet the data delivery requirements, and storage can adopt a general format or a format agreed upon by the relevant parties.

[0050] This invention utilizes BIM technology to create a 3D model, enabling 3D visualization and digital model display. Furthermore, through BIM-based detailed design, various design problems can be avoided before construction begins. This significantly reduces construction time, material and labor costs, and the cost of rework.

[0051] Furthermore, this invention adds a rapid modeling and construction method to the BIM detailed design of new energy plant construction. Through parametric programming, Dynamo technology, or other similar rapid modeling software for rapid model conversion, the detailed design time and construction period are significantly reduced, ensuring the speed, safety, and quality of construction. This makes construction more convenient, simplifies operation and factory prefabrication, reduces costs, lowers production costs, and facilitates widespread adoption.

[0052] Therefore, it is evident that the BIM-based detailed design method for the rapid construction of this automobile factory has significant advantages and is more advanced than traditional methods. Detailed Implementation

[0053] The present invention will be further illustrated below through specific embodiments.

[0054] A BIM detailing method for rapid construction of automobile factories, including

[0055] Step 1: Standardize BIM team management, including identifying the BIM project manager and BIM engineers;

[0056] Step 2: Site planning, BIM detailed design, clash detection, 4D progress simulation:

[0057] Before construction begins, a 3D model of the construction site is established. Based on this model, temporary water and electricity supplies, temporary roads, temporary facilities, construction machinery, construction areas, processing areas, material storage yards, and site fencing for each construction stage are added. Simulation analysis, spatial optimization, and scheme comparison are conducted. Simulations are performed for key and challenging construction schemes. A model of the automobile factory is built based on the design drawings. The rationality of the design is assessed, spatial layout is optimized, clash detection is performed, and the design is refined. Progress simulation video files are developed according to project schedule requirements using professional construction simulation software; the perspective and effects need to be communicated with the client. Coordination between design and construction disciplines is enhanced. The model coordinates the spatial layout of each discipline, and clash detection coordinates their construction. Clash data reflects the refined design results. A bill of quantities is generated from the model. 2D detailed construction drawings are generated from the model.

[0058] Step 3: Parameterize and build the family library model, and share the parameters;

[0059] Parametric families are divided into two categories: standard parametric families and custom parametric families. Standard parametric families are families created using predefined standard data series as driving parameters. Each family type corresponds to a unique data set, and all family types are parameter-driven based on the same model. They are used to create families of equipment or components with standard specifications and dimensions. Custom parametric families are families created for non-standard equipment or components. Based on the same model, parameters are created for dimensions that may require user customization in non-standard equipment or components. These parameters should be directly modified by the user after loading the custom parametric family according to the actual needs of the project to obtain non-standard equipment or components suitable for the project. Custom parametric families can be seen as a special case of standard parametric families.

[0060] There are two parameter-driven methods for standard parametric families: one is to use data files for parameter driving; the other is to embed data directly within the family type. Data files should be used for parameter driving, as this method is suitable for families with a large number of family types, facilitates centralized data management and model debugging, and is frequently used in the creation of standard parametric families. When using this method, it is important to note that the data must be copied to a specific folder; otherwise, parameter driving will not work. In the creation of standardized families with a small number of family types, the method of embedding data within the family type, which offers greater family versatility, should be used.

[0061] Data files should be created in two formats: TXT and CSV, depending on the specific needs of the data family being created.

[0062] The steps for creating a family in Revit are as follows: First, create a data table containing the data corresponding to each type of the family to be created; second, during the model building process, create parameters that correspond one-to-one with the parameters in the data table; finally, debug each set of type parameters to ensure that each family type can be parameterized and driven.

[0063] Using shared parameters, families and label families can call these parameters simultaneously; the family file can be improved with relevant data information through shared parameters, and the label family should be consistent with the target family type. By editing the label, the same shared parameters as the target family can be added to the category parameters. The order and arrangement of these shared parameters can be edited in the label parameter column, such as adding parentheses, spaces or line breaks, to conform to the relevant model file requirements in terms of format.

[0064] Step 4: Utilize Dynamo technology for rapid refinement;

[0065] Utilize Dynamo visual programming technology to analyze requirements.

[0066] Step 4.1: Obtain the 3D view to be exported;

[0067] Step 4.2: Export the acquired 3D view;

[0068] Step 4.2.1: Obtain the required views: To filter the views to be exported, the view names should first be appended with the suffix "-navisworks". The names of these views should be obtained through the node Python Script in the Revit plugin Dynamo.

[0069] Step 4.2.2: Export the acquired 3D view: Select the folder to which you want to export the view, call the API to execute the batch export command, and obtain the results by running the commands on the nodes.

[0070] Step 4.2.3, Family Parameter Information Exchange: Using Dynamo visual programming technology, the first step is to obtain the required family parameters; then, return the obtained values ​​to the corresponding parameters.

[0071] Step 4.2.4, Batch Placement of Room Names: Using Dynamo visual programming technology, obtain the 2D drawings of the corresponding floors, query the layer name of "Room Name" and the location data of the block of "Room Name", and put the corresponding return values ​​of these two sets of data into the model text.

[0072] Step 4.2.5, Batch Placement of Column Planes in 3D: Using Dynamo visual programming technology, add column number text models to the RVT model. Export NWC through Navisworks to quickly query the location information of collision points and provide accurate feedback for timely modifications. First, create model text for instance family parameters, containing 4 column faces and one plane. Second, obtain the coordinates of the points where the grid lines intersect pairwise, as well as the grid line number, such as "A-1", and fill these two sets of information into the text model.

[0073] Step 4.2.6: Batch adjust lamp height based on beam bottom height: Using Dynamo visual programming technology, obtain the height of the bottom of the inclined beam, form a surface from multiple sets of lines, obtain the XY coordinates of the lamp, calculate the Z value, and fill the Z value into the lamp height. Lamps of different heights can be placed in batches based on the bottom mark of the inclined beam.

[0074] Step 4.2.7 Batch Print PDF Drawings: Based on the Print.ByViewSheetSet node, select the output PDF format in Printer, select the save path, select the range of PDF drawings to be exported in Sheet Set, select the default format in PrintSetting, and click Run;

[0075] Step 5: Utilize secondary development plugins to quickly assist in further development;

[0076] Step 5.1: In automobile factory projects and projects with short construction periods and complex individual models, secondary development plugins should be used to quickly model and assist in the refinement of pipelines; specifically, commonly available third-party secondary development plugins should be used.

[0077] Step 5.2: Place electrical boxes in batches using secondary development software: When a project requires the placement of a large number of electrical boxes and cabinets, a secondary development plugin for Revit or other rapid modeling software should be used.

[0078] Step 5.2.1: First, pick up the imported electrical CAD drawings, select the electrical cabinets to be converted, select the corresponding 3D family model, and perform a quick conversion. After the conversion is complete, manually adjust the position of the offset cabinets. When the materials department provides the manufacturer's detailed drawings of electrical cabinets, the actual dimensions of the cabinets in the model should be added and modified. After the modification is completed, the cabinets should be arranged in the model to check for collisions and reasonable door opening distances.

[0079] Step 5.3: Quickly arrange supports and hangers using secondary development plugins: In projects with multiple systems, large-size pipework, or complex process systems in the factory, when we need to add supports and hangers to the pipelines in the model, we should use Revit plugins or other third-party software plugins to arrange supports and hangers in batches. First, we should select profiles that meet the stress conditions, and reserve the lateral length of the supports and the spacing of the supports according to the construction instructions and relevant specifications. We should manually handle different locations and complex spaces. Before the civil engineering contractor starts construction, we should provide the relevant support embedded plate construction plan and send it to the owner for review.

[0080] Step 5.4: Use secondary development plugins to quickly bend and connect pipelines: When there are a large number of pipelines in the project model that need to bend, break, or be connected at specified angles, third-party software plugins should be used to quickly bend, break, bend, and connect pipelines at angles.

[0081] Step 5.5: Use secondary development plugins for rapid multi-pipe marking: In order to ensure the neatness of the plan drawing and shorten the drawing output time by quickly marking, relevant plugins on the market should be used to quickly mark multiple pipes. Unnecessary marking actions should be reduced to ensure the cleanliness of the drawing.

[0082] Step 5.6: Using secondary development plugins to create and mark openings in the building model: By using relevant secondary development plugins, the building model can be quickly made open. First, open the building model, link the electromechanical model, select the wall where the opening is needed, and click on the pipe where the opening is needed. The software will automatically recognize and make the opening according to the previously set opening rules.

[0083] Step 5.7: Use software to refine and mark the opening information, and manually adjust the marking positions at complex sections of the pipework assembly;

[0084] Step 6: Lightweight browsing and inspection of the model platform;

[0085] Step 6.1: Improve BI coordination using Navisworks project review software: Integrate design and construction data into a single model, identify and resolve conflicts and interference issues before construction, and integrate collaborative data from multiple fields for better control of outcomes;

[0086] Step 6.2: Use Navisworks to perform collision detection on the model, record the viewpoints of the collision interference points and save the files, and promptly report back to the relevant BIM personnel;

[0087] Step 6.3: When transmitting the model to the owner, it should be saved as an NWC file; when transmitting it to the construction site, it should be integrated into an NWD file format.

[0088] Step 6.4, Browsing the model based on the lightweight platform: Upload the integrated NWD file to the third-party lightweight platform through a browser, and share the completed model link with relevant professional engineers so that construction personnel can view the project model on the construction site via mobile devices;

[0089] Step 7. Prefabrication based on BIM technology;

[0090] Step 7.1, Prefabricated Supports: After completing the detailed design of the integrated pipeline system, select support profiles and forms that meet the structural requirements. Use third-party secondary development plugins such as Hibim, Modeling Master, and Magicad For Revit to create parametric families of supports in batches and load them into the model. Adjustments should be made for pipelines in different situations. Finally, the supports should be sectioned, dimensions marked, and drawings generated.

[0091] Step 7.2: After completing the drawing work, an internal construction meeting and a meeting with the subcontracting teams should be held to discuss and review the drawings, make revisions and improvements, and finally issue the drawings to the subcontracting team leaders through the project document control system.

[0092] Step 7.3, Prefabricated Valve Assemblies: Further refine the equipment valve assembly, selecting suitable pipe elbows and valve accessories. Maintain the required spacing between valves. After refinement, generate drawings. Hold a prefabrication briefing meeting to address any issues raised. The first valve assembly should be inspected on-site. Once confirmed to be correct, it should be signed off by the construction technician, BIM engineer, and subcontractor's technical supervisor before mass prefabrication.

[0093] Step 7.4, Prefabricated Air Ducts: Air ducts used in factory production must be standardized, mass-produced, and customized, and meet load specifications. After the model pipeline integration is completed, the prefabricated air ducts are disassembled using a secondary development plugin. The positions of interference and collision between air outlets and flanges are manually adjusted. After completion, the exploded view of the prefabricated pipe section and the material list are exported. A meeting is held to explain the construction of the model and prefabricated air ducts.

[0094] Step 8, BIM Data Delivery:

[0095] Step 8.1: Building Information Modeling (BIM) deliverables should be delivered according to the model standards of each design stage, and should be easy to archive and preserve, ensure data security, and ensure the accuracy and completeness of deliverable information; the content and form of the final deliverables should be specified in the project tender and contract, and the deliverables should be delivered in the agreed format;

[0096] Step 8.2: The publishing format and form of all BIM models, output data, and drawings for the project should comply with the requirements of the BIM implementation plan. Furthermore, the processes for verification, approval, publishing, and archiving should also be carried out in accordance with the BIM implementation plan. BIM model data should be reviewed and verified before sharing or publishing. File formats and naming rules should conform to the project's BIM implementation plan; model files should be the latest version, containing all modifications and updates.

[0097] Step 8.3, Data Security: No one other than the person in question may be allowed to access the model information data; before the model is delivered to the recipient, the provider should first conduct an internal audit of the model data and the interoperable data it generates;

[0098] Step 8.4, Data Verification and Acceptance: Before data delivery and exchange, correctness, timeliness, and consistency checks should be performed; the recipient should confirm and verify the data before using it; the model data should meet the data delivery requirements, and storage can adopt a general format or a format agreed upon by the relevant parties.

[0099] This invention utilizes BIM technology to create a 3D model, enabling 3D visualization and digital model display. Furthermore, through BIM-based detailed design, various design problems can be avoided before construction begins. This significantly reduces construction time, material and labor costs, and the cost of rework.

[0100] Furthermore, this invention adds a rapid modeling and construction method to the BIM detailed design of new energy plant construction. Through parametric programming, Dynamo technology, or other similar rapid modeling software for rapid model conversion, the detailed design time and construction period are significantly reduced, ensuring the speed, safety, and quality of construction. This makes construction more convenient, simplifies operation and factory prefabrication, reduces costs, lowers production costs, and facilitates widespread adoption.

[0101] Therefore, it is evident that the BIM-based detailed design method for the rapid construction of this automobile factory has significant advantages and is more advanced than traditional methods.

Claims

1. A BIM detailing method for rapid construction of automobile factories, including... Step 1: Standardize BIM team management, including identifying the BIM project manager and BIM engineers; Step 2: Site planning, BIM detailed design, clash detection, 4D progress simulation: Before construction begins, a 3D model of the construction site is established. Based on this model, temporary water and electricity supplies, temporary roads, temporary facilities, construction machinery, construction areas, processing areas, material storage yards, and site fencing for each construction stage are added. Simulation analysis, spatial optimization, and scheme comparison are conducted. Simulations are performed for key and challenging construction schemes. A model of the automobile factory is built based on the design drawings. The rationality of the design is assessed, spatial layout is optimized, clash detection is performed, and the design is refined. Progress simulation video files are developed according to project schedule requirements using professional construction simulation software; the perspective and effects need to be communicated with the client. Coordination between design and construction disciplines is enhanced. The model coordinates the spatial layout of each discipline, and clash detection coordinates their construction. Clash data reflects the refined design results. A bill of quantities is generated from the model. 2D detailed construction drawings are generated from the model. Step 3: Parameterize and build the family library model, and share the parameters; Parametric families are divided into two categories: standard parametric families and custom parametric families. Standard parametric families are families created using predefined standard data series as driving parameters. Each family type corresponds to a unique data set, and all family types are parameter-driven based on the same model. They are used to create families of equipment or components with standard specifications and dimensions. Custom parametric families are families created for non-standard equipment or components. Based on the same model, parameters are created for dimensions that may require user customization in non-standard equipment or components. These parameters should be directly modified by the user after loading the custom parametric family according to the actual needs of the project to obtain non-standard equipment or components suitable for the project. Custom parametric families can be seen as a special case of standard parametric families. There are two parameter-driven methods for standard parametric families: one is to use data files for parameter driving; the other is to embed data directly within the family type. Data files should be used for parameter driving, as this method is suitable for families with a large number of family types, facilitates centralized data management and model debugging, and is frequently used in the creation of standard parametric families. When using this method, it is important to note that the data must be copied to a specific folder; otherwise, parameter driving will not work. In the creation of standardized families with a small number of family types, the method of embedding data within the family type, which offers greater family versatility, should be used. Data files should be created in two formats: TXT and CSV, depending on the specific needs of the data family being created. The steps for creating a family in Revit are as follows: First, create a data table containing the data corresponding to each type of the family to be created; second, during the model building process, create parameters that correspond one-to-one with the parameters in the data table; finally, debug each set of type parameters to ensure that each family type can be parameterized and driven. Using shared parameters, families and label families can call these parameters simultaneously; the family file can be improved with relevant data information through shared parameters, and the label family should be consistent with the target family type. By editing the label, the same shared parameters as the target family can be added to the category parameters. The order and arrangement of these shared parameters can be edited in the label parameter column, such as adding parentheses, spaces or line breaks, to conform to the relevant model file requirements in terms of format. Step 4: Utilize Dynamo technology for rapid refinement; Utilize Dynamo visual programming technology to analyze requirements. Step 4.1: Obtain the 3D view to be exported; Step 4.2: Export the acquired 3D view; Step 4.2.1: Obtain the required views: To filter the views to be exported, the view names should first be appended with the suffix "-Navisworks". The names of these views should be obtained through the node Python Script in the Revit plugin Dynamo. Step 4.2.2: Export the acquired 3D view: Select the folder to which you want to export the view, call the API to execute the batch export command, and obtain the results by running the commands on the nodes. Step 4.2.3, Family Parameter Information Exchange: Using Dynamo visual programming technology, the first step is to obtain the required family parameters; then, return the obtained values ​​to the corresponding parameters. Step 4.2.4, Batch Placement of Room Names: Using Dynamo visual programming technology, obtain the 2D drawings of the corresponding floors, query the layer name of "Room Name" and the location data of the block of "Room Name", and put the corresponding return values ​​of these two sets of data into the model text. Step 4.2.5, Batch Placement of Column Planes in 3D: Using Dynamo visual programming technology, add column number text models to the RVT model. Export NWC through Navisworks to quickly query the location information of collision points and provide accurate feedback for timely modifications. First, create model text for instance family parameters, containing 4 column faces and one plane. Second, obtain the coordinates of the points where the grid lines intersect pairwise, as well as the grid line number, such as "A-1," and fill these two sets of information into the text model. Step 4.2.6: Batch adjust lamp height based on beam bottom height: Using Dynamo visual programming technology, obtain the height of the bottom of the inclined beam, form a surface from multiple sets of lines, obtain the XY coordinates of the lamp, calculate the Z value, and fill the Z value into the lamp height. Lamps of different heights can be placed in batches based on the bottom mark of the inclined beam. Step 4.2.7 Batch Print PDF Drawings: Based on the Print.ByViewSheetSet node, select the output PDF format in Printer, select the save path, select the range of PDF drawings to be exported in Sheet Set, select the default format in Print Settings, and click Run; Step 5: Utilize secondary development plugins to quickly assist in further development; Step 5.1: In automobile factory projects and projects with short construction periods and complex individual models, secondary development plugins should be used to quickly model and assist in the refinement of pipelines; specifically, commonly available third-party secondary development plugins should be used. Step 5.2: Place electrical boxes in batches using secondary development software: When a project requires the placement of a large number of electrical boxes and cabinets, a secondary development plugin for Revit or other rapid modeling software should be used. Step 5.2.1: First, pick up the imported electrical CAD drawings, select the electrical cabinets to be converted, select the corresponding 3D family model, and perform a quick conversion. After the conversion is complete, manually adjust the position of the offset cabinets. When the materials department provides the manufacturer's detailed drawings of electrical cabinets, the actual dimensions of the cabinets in the model should be added and modified. After the modification is completed, the cabinets should be arranged in the model to check for collisions and reasonable door opening distances. Step 5.3: Quickly arrange supports and hangers using secondary development plugins: In projects with multiple systems, large-size pipework, or complex process systems in the factory, when we need to add supports and hangers to the pipelines in the model, we should use Revit plugins or other third-party software plugins to arrange supports and hangers in batches. First, we should select profiles that meet the stress conditions, and reserve the lateral length of the supports and the spacing of the supports according to the construction instructions and relevant specifications. We should manually handle different locations and complex spaces. Before the civil engineering contractor starts construction, we should provide the relevant support embedded plate construction plan and send it to the owner for review. Step 5.4: Use secondary development plugins to quickly bend and connect pipelines: When there are a large number of pipelines in the project model that need to bend, break, or be connected at specified angles, third-party software plugins should be used to quickly bend, break, bend, and connect pipelines at angles. Step 5.5: Use secondary development plugins for rapid multi-pipe marking: In order to ensure the neatness of the plan drawing and shorten the drawing output time by quickly marking, relevant plugins on the market should be used to quickly mark multiple pipes. Unnecessary marking actions should be reduced to ensure the cleanliness of the drawing. Step 5.6: Using secondary development plugins to create and mark openings in the building model: By using relevant secondary development plugins, the building model can be quickly made open. First, open the building model, link the electromechanical model, select the wall where the opening is needed, and click on the pipe where the opening is needed. The software will automatically recognize and make the opening according to the previously set opening rules. Step 5.7: Use software to refine and mark the opening information, and manually adjust the marking positions at complex sections of the pipework assembly; Step 6: Lightweight browsing and inspection of the model platform; Step 6.1: Improve BI coordination using Navisworks project review software: Integrate design and construction data into a single model, identify and resolve conflicts and interference issues before construction, and integrate collaborative data from multiple fields for better control of outcomes; Step 6.2: Use Navisworks to perform collision detection on the model, record the viewpoints of the collision interference points and save the files, and promptly report back to the relevant BIM personnel; Step 6.3: When transmitting the model to the owner, it should be saved as an NWC file; when transmitting it to the construction site, it should be integrated into an NWD file format. Step 6.4, Browsing the model based on the lightweight platform: Upload the integrated NWD file to the third-party lightweight platform through a browser, and share the completed model link with relevant professional engineers so that construction personnel can view the project model on the construction site via mobile devices; Step 7. Prefabrication based on BIM technology; Step 7.1, Prefabricated Supports: After completing the detailed design of the integrated pipeline system, select support profiles and forms that meet the structural requirements. Use third-party secondary development plugins such as Hibim, Modeling Master, and Magicad For Revit to create parametric families of supports in batches and load them into the model. Adjustments should be made for pipelines in different situations. Finally, the supports should be sectioned, dimensions marked, and drawings generated. Step 7.2: After completing the drawing work, an internal construction meeting and a meeting with the subcontracting teams should be held to discuss and review the drawings, make revisions and improvements, and finally issue the drawings to the subcontracting team leaders through the project document control system. Step 7.3, Prefabricated Valve Assemblies: Further refine the equipment valve assembly, select appropriate pipe elbows and valve accessories, and ensure that the spacing between each valve is in accordance with the specified requirements. After the refinement is completed, produce drawings; hold a prefabrication briefing meeting for the pipeline valve assembly and improve upon the issues raised at the meeting. The first valve assembly should be inspected on-site. After confirming that there are no errors, it should be prefabricated in batches after being signed by the construction technician, BIM engineer, and technical supervisor of the subcontractor team. Step 7.4, Prefabricated Air Ducts: Air ducts used in factory production must be standardized, mass-produced, and customized, and meet load specifications. After the model pipeline integration is completed, the prefabricated air ducts are disassembled using a secondary development plugin. The positions of interference and collision between air outlets and flanges are manually adjusted. After completion, the exploded view of the prefabricated pipe section and the material list are exported. A meeting is held to explain the construction of the model and prefabricated air ducts. Step 8, BIM Data Delivery: Step 8.1: Building Information Modeling (BIM) deliverables should be delivered according to the model standards of each design stage, and should be easy to archive and preserve, ensure data security, and ensure the accuracy and completeness of deliverable information; the content and form of the final deliverables should be specified in the project tender and contract, and the deliverables should be delivered in the agreed format; Step 8.2: The publishing format and form of all BIM models, output data and drawings of the project should comply with the requirements of the BIM implementation plan. At the same time, the process of verification, approval, publication and archiving should also be carried out in accordance with the BIM implementation plan. BIM model data should be reviewed and verified before being shared or published. The file format and naming conventions conform to the project's BIM implementation plan; the model files are the latest version, containing all modifications and updates; Step 8.3, Data Security: No one other than the person in question may be allowed to access the model information data; before the model is delivered to the recipient, the provider should first conduct an internal audit of the model data and the interoperable data it generates; Step 8.4, Data Verification and Acceptance: Before data delivery and exchange, correctness, timeliness, and consistency checks should be performed; the recipient should confirm and verify the data before using it; the model data should meet the data delivery requirements, and storage can adopt a general format or a format agreed upon by the relevant parties.