A method for information-based association of design files and design disclosure based on a BIM model

Abstract

The application provides a kind of based on BIM model design file and design disclosure informationization association method, comprising the following steps: S1, based on Bentley platform, the tree structure directory of management model is established in collaborative design;S2, design file is managed according to the tree structure directory mapped by model, and child node has root node information;S3, design disclosure information is managed according to professional division, and is associated with the design file that has been managed by the tree structure directory mapped by model;S4, through steps S1-S3, the design BIM data asset of automatically associated design file, design disclosure information is formed.The method provided by the application is suitable for three-dimensional BIM forward design management in engineering design, and can standardize the management of three-dimensional design model, design file management after three-dimensional drawing and design disclosure information management, form the BIM forward design achievement of light-weight release with design file and design disclosure information, and can be applied to industries including water conservancy and hydropower engineering, new energy engineering, municipal transportation engineering and building engineering.

Description

Technical Field

[0001] This invention belongs to the field of BIM forward design management, specifically involving an information-based association method for design documents and design disclosure based on BIM models. It is applicable to 3D BIM forward design management in engineering design, standardizes the management of 3D design models, design documents after 3D drawing, and design disclosure information, and forms lightweight BIM forward design deliverables with design documents and design disclosure information. It is applicable to industries including water conservancy and hydropower engineering, new energy engineering, municipal transportation engineering, and building engineering. Background Technology

[0002] BIM (Building Information Modeling) technology is an important carrier for engineering digitization. Forward design and its management during the design phase are key aspects of BIM application, including 3D forward design and 3D drawing generation. With the continuous updating and improvement of 3D modeling tools, modeling time and costs have decreased, and the promotion and application of 3D forward design is gradually deepening.

[0003] Design briefing is the process of explaining the design concept and construction precautions to the construction unit and the client after the design is completed. The quality of the design briefing plays a very important role in the construction of the project.

[0004] With the development of BIM technology and the increasing popularity of lightweight deployment and applications, there is often a disconnect between collaborative design of 3D models, 3D drawing management, and design handover management based on BIM models. Currently, after lightweight deployment, various process information is linked to the model through component codes. Therefore, the current method for displaying lightweight BIM models typically involves coding the components and then associating the information with them. However, this approach is labor-intensive, inefficient, and prone to losing original coding information after model iterations. The current technical approach, which focuses on linking information after lightweight BIM deployment to form data assets containing various process information, does not adequately meet the needs of practical applications. Furthermore, for complex projects requiring multi-disciplinary collaboration, management chaos often arises. Design documents involve numerous disciplines and types, and each discipline has different hierarchical divisions within its system, making automated processing at the coding data level difficult. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a method for linking design documents and design disclosure information based on BIM models. By standardizing the model building process and using a tree structure to manage and map the reference relationships between models, the first layer of this tree structure is defined as the professional division, and this tree structure is used to manage design documents and design disclosure information. This achieves the formation of BIM design data assets that integrate design documents and design disclosure information and are associated with the model, through the decomposition of engineering elements and the combination of component information.

[0006] Therefore, the above-mentioned objectives of the present invention are achieved through the following technical solutions:

[0007] A method for information-based association between design documents and design disclosure based on BIM models, characterized by comprising:

[0008] S1. Collaborative design is based on the Bentley platform, and a tree-structured directory for managing the models is established. The tree structure maps the reference relationships between models, and the Bentley 3D assembly DGN files refer to the various sub-DGN files managed by the directory. The first level of the tree structure directory is the discipline, and models are created according to the discipline's own modeling characteristics. It is necessary to provide the cooperating discipline and the assembly. The first-level directory must contain a discipline assembly model. The assembly model only refers to the model of this discipline. The discipline assembly model is an empty file and only manages the model relationship within the discipline.

[0009] S2. Design files are managed in a tree-structured directory based on the model mapping. Child nodes carry root node information. The principle of design file management is as follows: Design files for 3D model drawings are managed by the directory node where the model file is located. If the model to be drawn is a combination of multiple models, the design files are associated with the common root node of the directory nodes where the relevant model files are located. If the model is drawn as a model assembly file, the design files are associated with the node in the directory where the assembly file is located.

[0010] S3. Design disclosure information is categorized and entered according to professional disciplines. This information includes: disclosure name, brief description, disclosure date, design documents, disclosure personnel, and participants. Design documents are entered from the design files managed in step S2 according to the tree-structured directory mapped by the model. The design disclosure information is then associated with these design documents. Simultaneously, through the tree-structured directory nodes of the model mapping where the design documents reside, the design disclosure information is associated with the tree-structured directory of the model mapping. The association rule is: node where the design document is located ⊇ node where the model is located (tree structure label rule: {A / B} ⊇ {A / B / …}). Child nodes are matched with root node information, and the root node contains child nodes. Design disclosure information can also be attached to the attributes of model components via model codes as needed. Attaching via model codes serves as a supplement to the association between design disclosure information and the model.

[0011] S4. Through steps S1-S3, design BIM data assets are automatically associated with design documents and design disclosure information, which can be used to view various design-related information based on BIM.

[0012] Selecting the model tree structure directory, i.e., the reference directory, displays the corresponding model, along with the corresponding design files and the design disclosure information associated with those files. Clicking on a component displays its characteristics, the model file it resides in, and its tree structure directory node, simultaneously providing the corresponding design file and the design disclosure information associated with it. Selecting multiple model components also displays the associated design files and design disclosure information through the model file and its tree structure directory node. This allows you to view the model's design files and design disclosure information simultaneously while viewing the model. Furthermore, through 3D visualization, you can quickly determine whether drawings and design disclosures have been completed for a specific spatial area of ​​the project, providing both the design files and disclosure information. Since child nodes carry root node information, you can filter based on the directory node containing the design files to obtain drawings and disclosure information for a specific discipline within a particular space of the project.

[0013] The comprehensive BIM model display system established through the above steps enables the management of design documents and design disclosure information, and their association with the model. This technical solution helps to improve the current situation where it is difficult to link design information through model coding. It standardizes the management of model files while also managing and associating design files. Design disclosure focuses on covering design documents, allowing users to determine whether a disclosure has been made when reviewing design documents. Design disclosure information is managed through professional divisions, with the professional divisions consistent with the first level of the tree-structured directory mapped to the model. This allows design disclosure information to achieve a deeper connection with the model, i.e., the project spatial data, through associated design documents. The model dimension, through professional model decomposition and data association, combined with component relationships, enables the linking, management, and display of model design documents and design disclosures.

[0014] While adopting the above technical solutions, the present invention may also adopt or combine the following technical solutions:

[0015] As a preferred technical solution of the present invention: In step S1, a tree-structured directory management model is used. The first level of the directory is defined as the profession, that is, the model is divided and managed by profession. The directory from the second level onwards is organized and determined by the characteristics of the profession. For architecture and structural professions, the second-level directory is based on spatial division as the standard.

[0016] As a preferred technical solution of the present invention: In step S1, a tree-structured directory management model is used. The first level of the directory is defined as the profession, that is, the model is divided and managed by profession. The directory starting from the second level is organized and determined by the characteristics of the profession. For electrical engineering, electrical engineering, heating, ventilation and air conditioning, and water supply and drainage professions, the second-level directory is divided by process system as the standard.

[0017] As a preferred technical solution of the present invention: In step S1, the tree-structured directory management model and model reference relationship meet the process requirements of collaborative design, and are decomposed based on project characteristics and collaborative characteristics, combining professional, spatial and process systems.

[0018] As a preferred technical solution of the present invention: In step S1, a tree-structured directory management model is used. The first level of the directory is defined as a profession. There must be a professional assembly model under the first level directory. The professional assembly model is an empty file that only manages the model association relationship within the profession. The assembly model only refers to the model of this profession.

[0019] As a preferred technical solution of the present invention: In step S1, the model reference relationship is consistent with the hierarchical relationship of the tree directory structure management model. The models managed in the tree structure directory are associated with the models of the next level through reference. The association is achieved by creating a child node assembly model under the root node directory. The child node assembly model is an empty file, and its next level model is referenced.

[0020] As a preferred technical solution of the present invention: in step S2, the tree structure of the model mapping is used, the root node of the tree structure is the profession, which is consistent with the first level of the tree structure of the management model, and the node names below the profession are consistent with the model name.

[0021] As a preferred technical solution of the present invention: in step S2, the design files are managed according to the tree structure directory of the model mapping, and the child nodes carry the root node information.

[0022] As a preferred technical solution of the present invention: In step S2, the design files are managed according to the tree structure directory of the model mapping, so that the design files and the model are associated. One model can be associated with multiple design files. The child nodes have the root node information, and the design files of the root node are associated with multiple models.

[0023] As a preferred technical solution of the present invention: In step S2, the design files are managed according to the tree structure directory of the model mapping, and the first level of the tree structure directory is the profession, and the design files are automatically classified into the corresponding profession.

[0024] As a preferred technical solution of the present invention: in step S2, the design files for the three-dimensional model drawing are managed by the directory node where the model file for drawing is located. This directory node is the directory node for model mapping, that is, the design files for the individual model drawing are placed together with the model.

[0025] As a preferred technical solution of the present invention: In step S2, if the model to be drawn is a combination of multiple models, then the design file is associated with the common root node of the directory node where the relevant model files are located, and the common root node is the child node of the tree structure.

[0026] As a preferred technical solution of the present invention: In step S2, the model assembly file is used to generate drawings. Then, the directory node in the directory where the assembly file is located is the directory node of the model mapping. In this way, the model in the child node is on the same directory node as the assembly file, so that the model in the child node can carry the design file.

[0027] As a preferred technical solution of the present invention: In step S2, for design files that are not generated from models, a suitable node is found in the tree structure directory of the model mapping and associated with the files based on the disciplines involved, project spatial locations, etc.

[0028] As a preferred technical solution of the present invention: In step S2, a design file can only be on one node of the tree structure directory of the model mapping. This is because the management of the model is subject to the folder directory under the traditional resource management. In order to keep the design files under the traditional resource management consistent with it, the design files are managed by professional division, which conforms to the conventional operation of current engineering design and can improve the efficiency of design file entry. Therefore, the design file management of this technical solution is also managed by only one tree structure directory.

[0029] As a preferred technical solution of the present invention: in step S3, the design disclosure information is divided according to professional disciplines, and the design disclosure information is managed using only one layer of structural directory. The professional disciplines divided by the design disclosure information are consistent with the first level of the professional disciplines in the tree structure directory of the model mapping.

[0030] As a preferred technical solution of the present invention: In step S3, the design disclosure information is divided and entered according to professional categories. The design disclosure information includes the following contents: disclosure name, disclosure summary, disclosure date, design materials, disclosure personnel, and participants.

[0031] As a preferred technical solution of the present invention: In step S3, the design data in the design disclosure information is taken from the design files managed by the tree structure directory of the model mapping in step S2. The design disclosure information is then associated with the design files. At the same time, through the tree structure directory node of the model mapping where the design files are located, the design disclosure information is associated with the tree structure directory of the model mapping through the association of the design files. The association rule is: the node where the design files are located ⊇ the node where the model is located (tree structure label rule: {A / B} ⊇ {A / B / …}). The child nodes are matched with the root node information, and the root node contains the child nodes.

[0032] As a preferred technical solution of the present invention: In step S3, the professional categories of the design disclosure information are consistent with the first level of the tree structure directory of the model mapping. When the design disclosure information is entered, the associated design files can be multiple design files under multiple professional categories. The design disclosure information is managed through the professional category directory, but the content associated with it is under multiple professional categories, thus breaking the limitation that the design disclosure information can only be managed within one professional category.

[0033] As a preferred technical solution of the present invention: in step S3, the design disclosure information can also be associated with multiple model components, and the association with the model components can be viewed by attaching the model code to the attributes of the model components.

[0034] This invention provides a method for information-based association of design documents and design disclosure information based on a BIM model. It enables the management of design documents and design disclosure information and their association with the model. This invention helps to improve the current situation where it is difficult to link design information through model coding. It standardizes the management of model files while also managing and linking design documents. Design disclosure focuses on covering design documents, allowing users to determine whether a disclosure has been completed when reviewing design documents. The model dimension, through professional model decomposition and data association, combined with component relationships, enables the linking, management, and display of model design documents and design disclosure information. The model is managed using a tree structure, with collaborative relationships between models managed through mutual reference using Bentley platform DGN files. The tree structure directory mapped by the model is used to manage design documents and design disclosure process information, with child nodes in the tree directory containing information about the root node. The resulting BIM model with design information achieves at least the following effects:

[0035] Selecting a model component allows you to view the specific component's attribute information, as well as the design files associated with the model file, design disclosure information, and design disclosure information associated with the component.

[0036] Selecting the model mapping directory tree allows you to locate the model and view the design files and design disclosure information related to that model. The design files can be further filtered by discipline, meaning that you can view the design files by discipline, system, and spatial dimensions while viewing the model.

[0037] Design disclosure information is organized and managed professionally. When viewing the disclosure information, you can also view the associated design documents and the 3D model associated with this design disclosure.

[0038] When viewing the design documents, you can see the 3D model associated with the design documents, as well as the design disclosure information related to the design documents, including whether the design has been disclosed, how many times it has been disclosed, and related disclosure record information.

[0039] After the model is modified, it can be directly managed using this technical solution after forward design and 3D rendering. Only the model needs to be updated and published, and the association between the model and design documents and design disclosure information can be automatically retained.

[0040] Furthermore, the BIM model-based information-based association method for design documents and design disclosure provided by this invention also has the following beneficial effects:

[0041] 1) Process information such as design disclosure information and static data such as design documents do not need to be associated with specific BIM components. Instead, they are automatically associated through matching calculations between the nodes where the design documents are located and the model nodes. This solves the problem that design data is difficult to associate with the BIM model and addresses the issues of low association efficiency and incomplete association in traditional technical solutions that use BIM model component coding as a link.

[0042] 2) Design disclosure information and design documents are managed using the same tree structure directory. Design disclosure information is managed only at the first level of the tree structure. By linking design disclosure information with specific design documents, the flow of design disclosure information across multiple disciplines is realized. By linking design documents with the tree structure directory, the connection between design disclosure information and multiple parts of the project space is realized. Design disclosure and design document information are comprehensively displayed in the BIM presentation.

[0043] 3) Managing engineering project BIM models by combining professional, spatial, and process system dimensions helps to standardize the management of 3D design models and 3D drawings, forming a design BIM model based on the designer's positive design concept, and achieving low cost and high efficiency. Design documents are associated with the model through their drawing methods and inherent characteristics, linking multiple dimensions and levels of the model to a single design document. When viewing the BIM model, the automatic aggregation and display of design drawings from all disciplines related to a single model can be achieved. Attached Figure Description

[0044] Figure 1 This is a flowchart illustrating the information-based association method for design documents and design disclosure based on BIM models provided by the present invention.

[0045] Figure 2 This is a professional schematic diagram of the tree-structured management model for factory buildings provided by the present invention.

[0046] Figure 3 This is a schematic diagram of the tree-structured management model for water turbines provided by this invention.

[0047] Figure 4 This is a schematic diagram of the tree structure of the model mapping provided by the present invention.

[0048] Figure 5 This is a schematic diagram of the model-based design disclosure display interface provided by the present invention.

[0049] Figure 6 The design disclosure information provided by this invention is associated with design documents to form a tree structure, which is used to express its position in the project spatial information. Detailed Implementation

[0050] To enable those skilled in the art to better understand the technical solutions of the present invention, the preferred embodiments of the present invention are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting the present patent.

[0051] Reference Figures 1-6 A method for information-based association between design documents and design disclosure based on BIM models includes the following steps:

[0052] S1. A tree-structured directory for collaborative design and management model based on the Bentley platform;

[0053] S2. Design files are managed in a tree-structured directory based on the model mapping, with child nodes containing root node information;

[0054] S3. Design disclosure information is managed according to professional categories and linked to design files that have been managed using a tree-structured directory mapped by the model;

[0055] S4. Through steps S1-S3, design BIM data assets are automatically associated with design documents and design disclosure information, which can be used to view various design-related information based on BIM.

[0056] First, let's explain the design model management. Taking a large pumped-storage power station as an example, during collaborative design management, the model is divided by specialty. Within each specialty, the subdivision of the plant specialty is based on space. Figure 2As shown, the models are categorized by specialty: Surveying, Geology, Dam Construction, Plant, Water Diversion, Architecture, Electrical Engineering I, Electrical Engineering II, Water Turbines, HVAC, Water Supply and Drainage, and Metal Structures. The Plant specialty's model management is based on spatially divided model assembly, used to reference sub-models within corresponding spatial folders. Taking the main plant as an example, its internal divisions are still spatially categorized, including the generator layer, busbar layer, turbine layer, turbine housing, and spiral casing / tailrace pipe layer. The final assembly model references the Plant specialty's final assembly; the Plant specialty's final assembly references the Plant-Main Plant final assembly; and the Plant-Main Plant final assembly references sub-files within the Plant specialty-Main Plant directory.

[0057] The water treatment equipment industry can be further subdivided based on systems, such as... Figure 3 As shown, the hydraulic turbine division is further divided into several levels based on spatial arrangement, and then, according to its specific characteristics, taking the main plant as an example, it is divided into: low-pressure compressed air system, speed-regulating hydraulic system, technical water supply system, maintenance drainage system, insulating oil supply and drainage system, bridge crane, upper reservoir water filling system, leakage drainage system, hydraulic monitoring system, turbine unit, turbine oil supply and drainage system, fire water supply system, and medium-pressure compressed air system. The final assembly model references the hydraulic turbine division's final assembly; the hydraulic turbine division's final assembly references the hydraulic turbine-main plant final assembly; and the hydraulic turbine-main plant final assembly references the sub-files under the hydraulic turbine division-main plant directory.

[0058] Therefore, taking factory buildings and water turbines as examples, the tree structure mapped by the model is as follows: Figure 4 As shown.

[0059] Design files are managed using a tree-structured directory based on the model mapping. Calculations and drawings are managed in the same way. If design drawings are directly derived from a single 3D model, such as structural layout drawings, reinforcement drawings, or hydraulic turbine pipework drawings, the design files are placed in the same node of the 3D model. If the drawings are derived from a series of models, such as design files directly derived from the general assembly model, the next level down from the general assembly model refers to the models referenced by the general assembly model. Typically, powerhouse layout drawings and process system diagrams in hydropower stations are extracted from the general assembly model. Because child nodes contain information from the root node, selecting the root node allows for extension down the tree structure. The design files of the root node are then associated with the child nodes below the root node's branches, thus associating them with the child node models. In this way, for example, when displaying the BIM model, selecting the general assembly model in the directory tree selects all related models of the general assembly model, and simultaneously displays all design files below the root node. Because child nodes carry root node information, for example, one child node is: Factory Building Specialty - General Assembly Model - Main Transformer Hole - F1 Floor, and another child node is: Factory Building Specialty - General Assembly Model - Auxiliary Factory Building - F6 Floor. Selecting the General Assembly Model node is actually selecting the Factory Building Specialty - General Assembly Model node. All nodes with this information are then extracted, because both of the listed nodes belong to the structure "Factory Building Specialty - General Assembly Model -".

[0060] The design briefing information includes the following: Figure 5 As shown. Design disclosure information belongs to process information records and is managed by different disciplines. Engineering project design disclosures are usually conducted by discipline, with each discipline differentiating the main processes and job types to identify the target audience. In the design disclosure information, design documents originate from files associated with and managed through a tree-structured directory mapped to the model. Multiple files can be selected, regardless of discipline. While the design disclosure information itself belongs to a specific discipline, the disclosed design documents can be from different disciplines. Therefore, this implementation breaks through the original limitation of managing design disclosure information solely by discipline. For example... Figure 6 As shown, after associating the design disclosure information with relevant files, the design disclosure information forms a tree structure to represent its location within the project's spatial information. The selected design files are: Main Plant Layout Plan, Main Plant Generator Floor Low-Pressure Compressed Air System Layout Plan, Main Plant Speed-Regulating Hydraulic System Process Diagram, and Main Plant Turbine Floor Technical Water Supply System Layout Plan. The nodes for these files are: "Plant - Main Plant", "Turbine - Main Plant - Low-Pressure Compressed Air System", "Turbine - Main Plant - Speed-Regulating Hydraulic System", and "Turbine - Main Plant - Technical Water Supply System". By attaching these tags to the design disclosure information, a series of models can be matched. These models are tagged with: "Plant - Main Plant", "Plant - Main Plant - Generator Layer", "Plant - Main Plant - Busbar Layer", "Plant - Main Plant - Turbine Layer", "Plant - Main Plant - Space Frame", "Plant - Main Plant - Spiral Shell Tailrace Layer", "Water Turbine - Main Plant - Low-Pressure Compressed Air System", "Water Turbine - Main Plant - Speed ​​Regulation Hydraulic System", and "Water Turbine - Main Plant - Technical Water Supply System". It is evident that the number of models is greater than or equal to the number of design documents associated with the design disclosure information. Therefore, the matching rule is: matching is performed from the root node, starting from the root node, and matching items with the same value are associated. In this way, by entering the disclosure information and associating it with the design documents, the design disclosure is always specific to a particular design document. Through the inherent rules, a series of 3D models are automatically associated, eliminating the need for separate association between the design disclosure information and the models.

[0061] The professional disciplines in the design disclosure information management system are consistent with the first-level disciplines in the tree structure directory of the model mapping. Design files are associated with only a single node in the tree structure directory. Therefore, by linking the managed design files with the design disclosure information, the design disclosure information is associated with nodes in multiple tree structure directories. This is a significant change from the original method of only being able to distinguish by one discipline, and it allows for the association of multiple nodes in the tree structure. Furthermore, it can be associated with multiple models. Since the models belong to the project spatial information, the design disclosure information is associated with the project spatial information. In addition, the design disclosure may describe specific components, so it is supplemented by associating specific components. The association follows the traditional method of using coding to link components with the disclosure information and displaying it in the component's attribute view. Component-level associations have been added from the perspective of spatial and process system division, ensuring that no part of the design disclosure information is missing from the BIM model association.

[0062] The resulting BIM model, which includes associated design documents and design disclosure information, looks like this: Clicking on the model reveals sub-models below it, displaying the corresponding models and the design documents under the model nodes. The design documents include the design documents of the sub-nodes and the design disclosure information associated with the model.

[0063] When viewing design disclosure information, you can access it through your major to view the disclosure information for that major. Clicking on the disclosure information will show the corresponding model and related design documents.

[0064] The design BIM model implemented through the above technical solutions includes design documents and design disclosure information. When used, it demonstrates the advantages of 3D model visualization. Viewing drawings and design disclosure records in conjunction with the 3D scene helps the viewer understand the design intent. Design documents and the model are managed using a single directory, facilitating the management of 3D forward design. While the management of design disclosure information is professionally categorized, its association with the model is flexible and adaptable, enabling the linking of design disclosure information with project spatial information. The resulting design BIM model can be used for the overall digital transfer of design data, forming a valuable data asset. Furthermore, this technical solution can be expanded to include construction process information, which can then serve as the foundational transfer data for the construction BIM model.

[0065] The above specific embodiments are used to explain and illustrate the present invention, and are only preferred embodiments of the present invention, not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made to the present invention within the spirit and scope of the claims shall fall within the protection scope of the present invention.

Claims

1. A method for information-based association between design documents and design disclosure based on BIM models, characterized in that: The method includes the following steps: S1. Collaborative design is based on the Bentley platform, and a tree-structured directory for managing the models is established. The tree structure maps the reference relationships between models. The Bentley 3D assembly DGN file references the various sub-DGN files managed by the directory. The first level of the tree structure directory is the discipline. Under each discipline, models are created according to the discipline's own modeling characteristics. The cooperating discipline and the assembly are required. The first-level directory must contain a discipline assembly model. The assembly model only refers to the model of this discipline. The discipline assembly model is an empty file and only manages the model relationship within the discipline. S2. Design files are managed in a tree-structured directory based on the model mapping. Child nodes carry root node information. The principle of design file management is as follows: Design files for 3D model drawings are managed by the directory node where the model file is located. If the model to be drawn is a combination of multiple models, the design files are associated with the common root node of the directory nodes where the relevant model files are located. If the model is drawn as a model assembly file, the design files are managed by the node in the directory where the assembly file is located. S3. Design disclosure information is categorized and entered according to professional disciplines. This information includes: disclosure name, brief description, disclosure date, design documents, disclosure personnel, and participants. Design documents are entered from the design files managed in step S2 using the tree-structured directory mapped by the model. The design disclosure information is then associated with these design documents. Furthermore, through the tree-structured directory nodes of the model mapping where the design documents reside, the design disclosure information is linked to the tree-structured directory of the model mapping. The association rule is: the node where the design document is located ⊇ the node where the model is located, with child nodes matching the root node information, and the root node containing child nodes. Design disclosure information is then attached to the attributes of model components using model codes as needed. S4. Through steps S1-S3, design BIM data assets that automatically associate design documents and design disclosure information are generated, which can be used to view various design-related information based on BIM. In step S2, the design files for the 3D model drawing are managed by the directory node where the model file is located. This directory node is the directory node for model mapping. In step S2, for design files that are not generated from models, appropriate nodes are found in the tree structure directory of the model mapping based on the disciplines involved, project spatial locations, etc., for association management.

2. The method for information-based association of design documents and design disclosure based on BIM model according to claim 1, characterized in that: In step S1, the tree-structured directory manages the model and model reference relationships, which meets the process requirements of collaborative design. It is decomposed based on project characteristics and collaborative characteristics, and combines professional, spatial, and process systems.

3. The method for information-based association of design documents and design disclosure based on BIM model as described in claim 1, characterized in that: In step S2, the tree structure mapped by the model is used, with the root node of the tree structure representing a profession, which is consistent with the first level of the tree structure of the management model. The node names below the profession are consistent with the model name.

4. The method for information-based association of design documents and design disclosure based on BIM model according to claim 1, characterized in that: In step S2, the design files are managed according to the tree structure directory of the model mapping, so that the design files are associated with the model. One model is associated with multiple design files, and the child nodes carry the root node information. The design file of the root node is associated with multiple models.

5. The method for information-based association of design documents and design disclosure based on BIM model according to claim 1, characterized in that: In step S2, the design files are managed according to the tree structure directory mapped by the model. The first level of the tree structure directory is the discipline, and the design files are automatically classified into the corresponding discipline.

6. The method for information-based association of design documents and design disclosure based on BIM model according to claim 1, characterized in that: In step S2, a design file can only be on one node in the tree structure directory of the model mapping.

7. The method for information-based association of design documents and design disclosure based on BIM model according to claim 1, characterized in that: In step S3, the professional categories of the design disclosure information are consistent with the first level of the tree structure directory of the model mapping, and the design files associated with the design disclosure information are multiple design files under multiple professional categories.

8. The method for information-based association of design documents and design disclosure based on BIM model according to claim 1, characterized in that: In step S3, the design disclosure information is associated with multiple model components, and the association with the model components is viewed by attaching the model code to the attributes of the model components.

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