CN107480374B - Bridge BIM model creation method based on CATIA - Google Patents
Bridge BIM model creation method based on CATIA Download PDFInfo
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Abstract
The invention discloses a bridge BIM model establishing method based on CATIA, which comprises the following steps: determining the assembly of the bridge BIM model, the names and the hierarchy division of parts, drawing a thinking guide graph by adopting Mindjet MindManager, and exporting csv format files in a outline form; dividing the BOM into a coding system and a coding list, editing and sorting the two tables through EXCEL, and performing hierarchical division on the bridge BIM by adopting a line classification method to generate names and numbers of assemblies and parts and to determine attribute information to be loaded in the assemblies and the parts; importing a BOM table through a secondary development interface of the CATIA, and automatically generating a structure tree and a component folder; automatically generating PRODUCT attribute and parameter attribute information in PART according to BOM table; and creating the CATIA geometric model based on the generated structure tree and the generated folder. The invention has the beneficial effects that: the loading of the non-geometric information and the automatic generation of the model file can be completed in batches, the separation of the geometric information and the non-geometric information creating work is realized, and the modeling can be carried out according to the actual requirements of a certain specific stage.
Description
Technical Field
The invention relates to the technical field of bridges, in particular to a bridge BIM model establishing method based on CATIA.
Background
The conventional bridge BIM modeling method based on CATIA has the following defects: (1) usually, after a two-dimensional CAD drawing is analyzed, the establishment of a three-dimensional model in the CATIA is started, which easily causes errors of assembly relation and non-specification and non-uniformity of non-geometric information displayed in a structure tree, and even has the problems of omission of some components and the like; (2) the information reflected by the two-dimensional drawing is incomplete, the number of the geometric information is large, and accordingly the built BIM model lacks non-geometric attribute information and cannot meet the requirements of the specific stage; (3) the association of the non-geometric information with the BIM model is generally achieved manually, and the process is too cumbersome, prone to careless mistakes and not beneficial to subsequent use of the BIM model.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a bridge BIM model creating method based on the CATIA, which can complete the loading of non-geometric information and the automatic generation of model files in batch, realize the separation of geometric information from non-geometric information creating work, and can perform modeling according to the actual requirements of a certain specific stage.
The invention provides a bridge BIM model establishing method based on CATIA, which comprises the following steps:
determining the assembly of a bridge BIM model and the name and the hierarchy division of parts according to the bridge construction requirement, drawing a thinking guide graph by adopting Mindjet MindManager software, and exporting the thinking guide graph in a synoptic form;
dividing the BOM into a coding system and a coding list, editing and sorting the two tables through EXCEL software, performing hierarchical division on the bridge BIM by adopting a line classification method, generating names and numbers of assemblies and parts, and determining attribute information required to be loaded in the assemblies and the parts;
wherein the content of the first and second substances,
the coding list comprises five columns of levels, coding numbers, level contents, specific contents and codes, wherein the specific contents of each level comprise assembly and part names, and the codes are codes corresponding to the assemblies and the parts;
the encoding system comprises a plurality of levels, each level comprises a level name, an encoding and an attribute, the level name is an assembly or component name, the encoding is an encoding corresponding to the assembly or the component, and the attribute is attribute information correspondingly contained in the assembly or the component;
firstly, importing the BOM table in the step 2 through a secondary development interface of CATIA software, and automatically generating a structure tree and a component folder;
and then, automatically generating PRODUCT attributes and parameter attribute information in PART according to a BOM table through a secondary development tool in CATIA software, and finishing information addition.
Step 4, CATIA modeling:
and creating the CATIA geometric model based on the generated structure tree and the component folder.
As a further improvement of the invention, in step 2, the codes in the code list are determined according to the hierarchy dividing relationship of the mind map in step 1 and the names of the assemblies and the components, the hierarchy is set to be 1+ N hierarchies, N is a positive integer, and one and only one component serial number hierarchy is in all hierarchies, and the component serial number hierarchy is a component hierarchy.
As a further improvement of the present invention, in step 2, when the coding system table is prepared, the csv format file exported in step 1 is imported as a data source into EXCEL software for processing.
As a further improvement of the invention, the thinking map comprises the names and the hierarchical relations of the assemblies and the components of the bridge BIM model.
As a further improvement of the invention, the assembly is a bridge, and the parts comprise structural parts of the bridge, local structures of the structural parts and detailed structures of the local structures.
The invention has the beneficial effects that:
1. the modeling method greatly improves the automation degree of BIM modeling work, and can realize automatic generation of an assembly structure and a model file and automatic import of attribute information in CATIA software;
2. the modeling method effectively reduces human errors in component coding and naming, fully utilizes the data editing capability of EXCEL software and the secondary development function of CATIA software, and can complete the past complicated information entry work only by filling in BOM table contents according to the flow;
3. the BOM is adopted for information integration, so that model codes and names are unified, the correctness of the assembly relation and the standardization and unification of non-geometric information in the structure tree are ensured, the problems of missing construction of components and the like are reduced, the distribution, model integration and handover information of modeling work is clear, and the continuity of information is ensured;
4. the method omits the steps of directly creating Part, geometry and renaming in the CATIA, and can create the bridge BIM according to the requirements of a certain specific stage (such as a design stage, a construction stage, an operation and maintenance stage and the like);
5. the structure tree is related to corresponding non-geometric information in an expansion mode to form a patterned application;
6. the method is suitable for forward modeling processes and reverse modeling processes.
Drawings
Fig. 1 is a schematic flow chart of a bridge BIM model creation method based on the CATIA according to an embodiment of the present invention;
FIG. 2 is an illustration of the schematic representation of the mind map of FIG. 1;
FIG. 3 is a representation of the code columns of FIG. 1;
fig. 4 is a diagram illustrating an example of the coding scheme in fig. 1.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
As shown in fig. 1, a bridge BIM model creating method based on CATIA according to an embodiment of the present invention includes:
according to the bridge construction requirements, determining the assembly of a bridge BIM model, the names and the hierarchy division of parts, drawing a thinking guide graph by adopting Mindjet MindManager software, and exporting the thinking guide graph in a synopsis form.
The thinking guide graph comprises an assembly of the bridge BIM model, the names and the hierarchical relations of parts, wherein the assembly is a bridge, and the parts comprise structural parts of the bridge, local structures of the structural parts and detailed structures of the local structures.
The figure of thinking guidance is shown in figure 2, the assembly is a bridge, the structural parts comprise an upper structure, a support, a damping and telescopic device, a lower structure, an accessory facility and the like, and the assembly, the structural parts, the local structures and the detailed structures are in a hierarchical relationship. The local structure comprises a main truss, a bridge deck system, a common support and a cushion stone, a spherical support and a cushion stone, a damper, a bridge deck expansion device, an abutment, a foundation, a drainage facility, a sidewalk, a railing and the like, and the detailed structure comprises a vertical rod, an inclined rod, an upper chord, a lower chord, an upper parallel connection, a lower parallel connection, a transverse connection system, a top cap, an abutment body, a pile foundation and the like.
the BOM is divided into a coding system and a coding list, the two tables are edited and sorted through EXCEL software, the bridge BIM model is hierarchically divided by adopting a line classification method, names and numbers of assemblies and parts are generated, and attribute information required to be loaded in the assemblies and the parts is determined.
Wherein the content of the first and second substances,
the coding list comprises five columns of levels, coding numbers, level contents, specific contents and codes, wherein the specific contents of each level comprise assembly and part names, and the codes are codes corresponding to the assemblies and the parts. The codes in the code list are determined according to the hierarchy dividing relationship of the mind map in the step 1 and the names of the assemblies and the components, the hierarchy can be set to be 1+ N hierarchies according to requirements, N is a positive integer, all the hierarchies have one component serial number hierarchy, the component serial number hierarchy is a component hierarchy, the number of code bits of the component serial number hierarchy does not make hard requirements, and the codes can be written according to the requirements. The code columns indicate, for example, as shown in fig. 3, the first column is a hierarchy name, the second column is the number of hierarchy code bits, the third column is hierarchy contents (including an assembly, a structural part, a partial structure, a detailed structure, and the like), the fourth column is specific contents (including names of components such as an assembly, a structural part, a partial structure, a detailed structure, and the like), the fifth column is a code (corresponding to an assembly and codes of each component), 8 hierarchies are provided, and the hierarchy 7 is set as a component serial number hierarchy.
The coding system comprises a plurality of levels, wherein each level comprises a level name, a code and an attribute, the level name is an assembly or component name, the code is a code corresponding to the assembly or component, and the attribute is attribute information correspondingly contained in the assembly or component. When the coding system table is produced, the csv format file exported in the step 1 is imported into EXCEL software as a data source for processing. The encoding system is shown in fig. 4, and includes a list of 1+ N levels, where in each level, the first column is the level 1 encoding, the second column is the level 1 component name, and the third column is the corresponding component attribute.
firstly, importing the BOM table in the step 2 through a secondary development interface of CATIA software, and automatically generating a structure tree and a component folder;
and then, automatically generating PRODUCT attributes and parameter attribute information in PART according to a BOM table through a secondary development tool in CATIA software, and finishing information addition.
Step 4, CATIA modeling:
and creating the CATIA geometric model based on the generated structure tree and the component folder.
The content to be embodied in the BOM table in the invention comprises: (1) item level division (2), level coding (3), level relation line division framework (4), assembly and component number (5), and component name (6), wherein each assembly and component comprises attribute information (such as IFD and drawing number in figure 4). The BOM table is manufactured to separate geometric information and non-geometric information of a model, data carding is carried out through EXCEL software, all hierarchical division information in a project model is determined in a line division mode, names and serial numbers of assemblies and parts are generated, and attribute information required to be loaded in all units is confirmed. The process ensures that the hierarchical division relationship is accurate and meets the requirements, and the unique and non-repeated numbering and naming formats can be ensured due to the solidified names and numbering generation modes of the assemblies and the components. By adopting the EXCEL software to arrange the attribute information carried by the unit, repeated operation in the modeling process can be avoided, the modeling workload is reduced, and the efficiency is effectively improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A bridge BIM model creating method based on CATIA is characterized by comprising the following steps:
step 1, making a basic data source of a BOM table:
determining the assembly of a bridge BIM model and the name and the hierarchy division of parts according to the bridge construction requirement, drawing a thinking guide graph by adopting MindjetMindManager software, and exporting the thinking guide graph in a synoptic form;
step 2, manufacturing a BOM table:
dividing the BOM into a coding system and a coding list, editing and sorting the two tables through EXCEL software, performing hierarchical division on a bridge BIM model by adopting a line classification method, generating names and numbers of assemblies and parts through a CONCATENATE function in the EXCEL software, and determining attribute information required to be loaded in the assemblies and the parts; wherein the content of the first and second substances,
the coding list comprises five columns of levels, coding numbers, level contents, specific contents and codes, wherein the specific contents of each level comprise assembly and part names, and the codes are codes corresponding to the assemblies and the parts;
the encoding system comprises a plurality of levels, each level comprises a level name, an encoding and an attribute, the level name is an assembly or component name, the encoding is an encoding corresponding to the assembly or the component, and the attribute is attribute information correspondingly contained in the assembly or the component;
step 3, CATIA secondary development:
firstly, importing the BOM table in the step 2 through a secondary development interface of CATIA software, and automatically generating a structure tree and a component folder;
then, automatically generating PRODUCT attributes and parameter attribute information in PART according to a BOM table through a secondary development interface in CATIA software again to finish information addition;
step 4, CATIA modeling:
and creating the CATIA geometric model based on the generated structure tree and the component folder.
2. The bridge BIM model creation method of claim 1, wherein in step 2, the codes in the code list are determined according to the hierarchy division relationship of the mind map in step 1 and the names of the assemblies and the components, the hierarchy is set to 1+ N hierarchies, N is a positive integer, there is one and only one component serial number hierarchy in all hierarchies, and the component serial number hierarchy is a component hierarchy.
3. The bridge BIM model creation method of claim 1, wherein in step 2, when the coding system table is created, the csv format file exported in step 1 is imported as a data source into EXCEL software for processing.
4. The method for creating the bridge BIM model according to claim 1, wherein the mind map comprises names and hierarchical relations of assemblies and components of the bridge BIM model.
5. The bridge BIM model creation method of claim 4, wherein the assembly is a bridge, and the parts comprise a structural part of the bridge, a partial structure of the structural part, and a detailed structure of the partial structure.
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| CN111080209B (en) * | 2019-12-27 | 2022-06-14 | 苏州浪潮智能科技有限公司 | BOM verification method, system, device and storage medium |
| CN111581700A (en) * | 2020-05-06 | 2020-08-25 | 中国电建集团成都勘测设计研究院有限公司 | Method for adding BIM attribute and outputting BIM attribute table based on CATIA model |
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| CN115168978B (en) * | 2022-09-05 | 2022-12-23 | 中铁第五勘察设计院集团有限公司 | Bridge building information model data building method |
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