Open-bim-based architectural project design method

Abstract

The embodiment of the present disclosure provides a building project design method based on open BIM, comprising: using a first BIM software to realize model creation of a civil engineering part in a target building project, forming a civil engineering BIM model; performing format conversion on the civil engineering BIM model to obtain a converted civil engineering BIM model that can be loaded by a second BIM software; under the constraint condition of the converted civil engineering BIM model, using the second BIM software to perform model creation and / or checking on a mechanical and electrical system part of the target building project, and obtaining a mechanical and electrical BIM model. By using the embodiment of the present disclosure, the advantages of various BIM software adapting to the design of corresponding type BIM model can be utilized, the efficiency of building project BIM model design can be improved, and various problems affecting design efficiency and processing efficiency caused by, for example, excessive module loading and incompatibility between project design and software bottom layer under a closed BIM software ecosystem can be reduced.

Description

Technical Field

[0001] This disclosure relates to the field of architectural design technology, and specifically to a building project design method based on open BIM. Background Technology

[0002] Current architectural design methods based on Building Information Modeling (BIM) involve completing all aspects of design (including site plan, architecture, structure, plumbing, HVAC, intelligent systems, and landscape) within a closed software system, as well as data transfer and interaction. For example, the current design field often uses Autodesk's Revit suite of software to complete all aspects of design, data transfer, and interaction.

[0003] Through design practice, it has been found that there are obvious technical defects in designing the entire domain based on the aforementioned closed software system. These defects are mainly reflected in the reduced software operating efficiency caused by graphical logic, and the fundamental low efficiency of software operation and collaborative work caused by over-integration.

[0004] Taking Revit software as an example, this paper analyzes the problem. Because Revit software uses a graphical logic based on the triangular facet algorithm, the following problems will occur in the software's running efficiency: (1) When the building shape is rectangular, Revit will not generate too many triangular faces when designing the building shape, and the software can run efficiently; (2) When the building has curved surfaces, the number of triangular faces that need to be formed to build the curved surfaces will increase exponentially, causing a sharp drop in the software's running efficiency. The problem of excessive software integration is manifested in the fact that the design, collaboration and software usage requirements of the entire field are integrated into the underlying framework of the closed software system. While executing the design of a specific field, the software also needs to load the software functions of other fields. For example, when using Revit for MEP design, it is necessary to run the civil engineering design function software and the supporting Mentalray rendering engine at the same time, resulting in low efficiency in actual software operation. Summary of the Invention

[0005] This disclosure provides a building project design method based on open BIM, including:

[0006] The first BIM software was used to create a model of the civil engineering part of the target building project, forming a civil engineering BIM model;

[0007] The civil engineering BIM model is converted to a format to obtain a converted civil engineering BIM model that can be loaded by the second BIM software.

[0008] Under the constraints of converting the civil engineering BIM model, the second BIM software is used to create and / or check the electromechanical system part of the target building project to obtain an electromechanical BIM model.

[0009] Wherein: the first BIM software is BIM software adapted for civil engineering BIM model construction, and the second BIM software is BIM software adapted for electromechanical BIM model construction. The first BIM software and the second BIM software are not directly compatible.

[0010] Optionally, the civil engineering BIM model is converted to a new format to obtain a converted civil engineering BIM model that can be loaded by the second BIM software.

[0011] The civil engineering BIM model is converted into an intermediate file using a first plugin installed in the first BIM software.

[0012] The intermediate file is converted into the converted civil engineering BIM model using a second plugin installed in the second BIM software.

[0013] Optionally, in the process of using the second BIM software to create and / or inspect the electromechanical system of the target building project, the method further includes:

[0014] If the design of the civil engineering BIM model is deemed unreasonable, the first BIM software is used to modify the civil engineering BIM model to obtain a modified civil engineering BIM model.

[0015] The modified civil engineering BIM model is converted to a new format to obtain a converted and modified civil engineering BIM model that can be loaded by the second BIM software.

[0016] Under the constraints of the conversion and modification of the civil engineering BIM model, the electromechanical system part of the target building project is modified and / or re-checked to obtain a new version of the electromechanical BIM model.

[0017] Optionally, the step of using the first BIM software to complete the model creation of the civil engineering part of the target building project includes: using Revit software to realize the model creation of the civil engineering part of the target building project;

[0018] The step of using the second BIM software to create and / or inspect the electromechanical system of the target building project includes: using Rebro software to create and / or inspect the electromechanical system of the target building project.

[0019] Optionally, the target building project is a building that includes irregular curved surfaces;

[0020] Before using the first BIM software to create a model of the civil engineering portion of the target building project, thus forming a civil engineering BIM model, the method further includes:

[0021] A third-party BIM software is used to construct the irregular curved surfaces of the civil engineering part of the target building project, thereby obtaining a model of the irregular curved surface component; the third-party BIM software is suitable for the design of irregular curved surface structures.

[0022] The irregular surface construction model is converted to a format to obtain a converted irregular surface component model that can be opened by the first BIM software.

[0023] The creation of a civil engineering model for a target building project using a first BIM software includes: loading the model of the transformed irregular curved surface component using the first BIM software, and creating a model of the non-irregular civil engineering part to obtain the civil engineering BIM model.

[0024] Optionally, after creating a temporary civil engineering BIM model from the model of the non-irregular civil engineering parts and before obtaining the final civil engineering BIM model, the method further includes:

[0025] The temporary civil engineering BIM model is converted to a format that can be opened by the third BIM software;

[0026] The third BIM software is used to load the temporary civil engineering BIM model and adjust the overall irregular curved surface components, and the civil engineering BIM model is obtained based on the adjusted model.

[0027] Optionally, the architectural project design method may also include: determining the location of openings that need to be made in the civil engineering BIM model based on the electromechanical BIM model;

[0028] The step of loading the temporary civil engineering BIM model using the third BIM software and adjusting the overall irregular curved surface, and obtaining the civil engineering BIM model based on the adjusted model, includes: performing hole processing on the irregular curved surface components in the temporary civil engineering BIM model using the third BIM software, and obtaining the civil engineering BIM model with holes in the irregular curved surface components based on the BIM model after hole processing.

[0029] Optionally, architectural project design methods may also include: after obtaining the final versions of the civil engineering BIM model and the mechanical and electrical BIM model, outputting the corresponding two-dimensional design drawings respectively;

[0030] The process of outputting the two-dimensional design drawings includes two-dimensional drawing projection, drawing dimension annotation, and benchmark positioning.

[0031] Optionally, the architectural project design methodology may also include: determining the type of BIM model to be passed to the construction party based on the software status configured by the construction party;

[0032] Wherein: when the construction party configures the first BIM software and the second BIM software, the civil engineering BIM model and the electromechanical BIM model are transferred to the construction party;

[0033] If the construction party only has the first BIM software configured, the MEP BIM model is converted to a format to obtain a converted MEP BIM model that can be loaded by the first BIM software; and the civil engineering BIM model and the converted MEP BIM model are transmitted to the construction party.

[0034] Secondly, this disclosure provides another architectural project design method based on open BIM, for designing target architectural projects containing irregular curved surfaces, including:

[0035] The irregular curved surface components of the civil engineering part of the target building project are constructed using third-party BIM software to obtain the irregular curved surface component model;

[0036] The irregular surface construction model is converted to a format to obtain a converted irregular surface component model that can be opened by the fourth BIM software.

[0037] The model of the transformed irregular curved surface component is loaded using the fourth BIM software, and the model of the non-irregular civil engineering part is created to obtain the civil engineering BIM model of the target building project.

[0038] Wherein: the third BIM software is BIM software adapted to the construction of irregular curved surfaces, and the fourth BIM software is BIM software applicable to the construction of civil engineering BIM models and / or MEP BIM models. The third BIM software and the fourth BIM software are not directly compatible.

[0039] The architectural project design method provided in this disclosure employs BIM software suitable for both the civil engineering and MEP (Mechanical, Electrical, and Plumbing) components of a target architectural project. The civil engineering BIM model is converted into a transformed civil engineering BIM model, which serves as a constraint during the design and review of the MEP BIM model in the second BIM software. Since the first and second BIM software are respectively designed for civil engineering and MEP BIM models, they are used to design the corresponding BIM models separately. The civil engineering BIM model is then converted into a transformed civil engineering BIM model for use as a constraint in the MEP BIM model design. Compared to existing closed BIM software ecosystems, the solution in this disclosure leverages the advantages of various BIM software adapting to corresponding BIM model designs, improving the efficiency of architectural project BIM model design and reducing problems such as excessive module loading and incompatibility between project design and underlying software, which can affect design and processing efficiency, as seen in closed BIM software ecosystems. Attached Figure Description

[0040] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0041] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without any creative effort, wherein:

[0042] Figure 1 This is a flowchart of a building project design method based on open BIM provided in this embodiment of the disclosure;

[0043] Figure 2 This is a flowchart of a building project design method based on open BIM provided in some other embodiments of this disclosure;

[0044] Figure 3 This is a flowchart of a building project design method provided in some embodiments of the present disclosure. Detailed Implementation

[0045] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0046] The term "comprising" and its variations as used herein are open-ended inclusion, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below. In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0047] To overcome the problem of low efficiency in building project design using closed BIM software systems, this disclosure provides a building project design method based on open BIM.

[0048] Figure 1 This is a flowchart of a building project design method based on open BIM provided in an embodiment of this disclosure. Figure 1 As shown, the architectural project design method based on open BIM provided in this embodiment includes S110-S130.

[0049] S110: Use the first BIM software to create a model of the civil engineering part of the target building project, forming a civil engineering BIM model.

[0050] The first BIM software mentioned in this disclosure is software adapted for building civil engineering BIM models. In existing industry practices, the first BIM software may be software such as Revit, as mentioned in the background section.

[0051] In practice, the creation of the civil engineering model for the target building project using the first BIM software involves civil engineers designing the building based on the project's design concepts, thus forming the civil engineering BIM model. It can be assumed that the civil engineering BIM model is a BIM model stored in the standard format of the first BIM software, and that the model's data structure and architecture are determined by the underlying structure and algorithms of the first BIM software.

[0052] When creating a civil engineering BIM model using primary BIM software, collaboration among multiple designers may be required. In this case, it's necessary to configure appropriate internal collaboration functions for the primary BIM software. For example, when using Revit as the primary design model, the built-in "Central File" function of Revit can be used to implement the internal working system for civil engineering design. Specifically, the "Central File" can be deployed on a central server, and the computers used by designers can be connected to the central server via a local area network, allowing multiple computers to access the "Central File" simultaneously without interfering with each other.

[0053] S120: Convert the format of the civil engineering BIM model to obtain a converted civil engineering BIM model that can be loaded by a second BIM software.

[0054] Converting a civil engineering BIM model into a format that can be loaded by a second BIM software involves using conversion middleware to transform a civil engineering BIM model with a format and structure that can be processed by the first BIM software into a civil engineering BIM model with a format and structure that can be processed by the second BIM software. For distinction, a civil engineering BIM model that can be processed by the second BIM software is called a converted civil engineering BIM model.

[0055] It should be noted that the second BIM software is specifically designed for building MEP (Mechanical, Electrical, and Plumbing) BIM models. This second BIM software is not directly compatible with the first BIM software; that is, the second BIM software cannot directly open a civil engineering BIM model created using the first BIM software.

[0056] It should also be noted that the second BIM software is applicable to MEP (Mechanical, Electrical, and Plumbing) BIM models, meaning that the second BIM software is applicable to models that include MEP structural design. Specifically, it can be applicable to systems such as water supply and drainage engineering, HVAC engineering, electrical engineering, and intelligent equipment layout design. In practice, the second BIM software can be Rebro software.

[0057] In practice, the civil engineering BIM model is converted into a format that can be loaded by the second BIM software. This conversion can include the following S121-S122.

[0058] S121: Use the first plugin loaded in the first BIM software to convert the civil engineering BIM model into an intermediate file.

[0059] Specifically, if the primary BIM software is Revit, a specially developed RebroLink plugin can be installed in Revit, and the civil engineering BIM model can be converted into an intermediate file by calling the aforementioned plugin.

[0060] S122: Use the second plugin loaded in the second BIM software to convert the intermediate file into a convertible civil engineering BIM model.

[0061] In the case where the first BIM software is Revit and the second BIM software is Rebro, a corresponding RebroLink plugin can be installed in the second BIM software to convert intermediate files to Rebro format. When running the second BIM software, the aforementioned plugin can be loaded to convert the intermediate files into a civil engineering BIM model.

[0062] This section analyzes the Rebro software. Rebro is specifically designed for MEP (Mechanical, Electrical, and Plumbing) detailed design. It lacks the redundant features found in Revit for other disciplines and doesn't employ a heavyweight rendering engine; its graphics algorithm is not a triangular mesh algorithm. Furthermore, Rebro includes a pipe network optimization function, enabling direct design and optimization of MEP system piping, unlike Revit which relies on other software for MEP design optimization (Revit requires Navisworks, another software within the same ecosystem, for piping optimization). Moreover, because design and modeling can be performed within a single software, problems can be identified and resolved without requiring model merging. This allows for simultaneous inspection of various sub-projects related to MEP, improving the overall efficiency of MEP model design.

[0063] S130: Under the constraints of converting the civil engineering BIM model, a second BIM software is used to create and / or check the electromechanical system part of the target building project to obtain an electromechanical BIM model.

[0064] After obtaining the converted civil engineering BIM model, it can be opened in a second BIM software, thus obtaining the civil engineering structural constraints for the MEP (Mechanical, Electrical, and Plumbing) system design of the target building project. Under these constraints, MEP engineers can create or inspect the MEP components of the building project, obtaining the MEP BIM model.

[0065] The process of creating a model for the electromechanical system using the second BIM software involves designing the structure of the electromechanical system based on the civil engineering BIM model. The process of checking the electromechanical system model using the second BIM software involves loading the electromechanical system model designed using the second BIM software into the converted civil engineering BIM model to check whether there are any structural or locational conflicts between the electromechanical system model and the converted civil engineering BIM model.

[0066] In practice, when using a second BIM software for the design of the MEP (Mechanical, Electrical, and Plumbing) system, MEP design engineers may need to work with multiple designers. In this case, the internal collaboration functions configured in the second BIM software can be utilized. For example, if the second BIM software is Rebro, the built-in "linked files" function can be used to facilitate collaborative work within the MEP discipline. The "linked files" can be stored on the design company's server or local PC, depending on the usage habits of the MEP system designers. The MEP system designers can then expand their design based on the existing design content in the "linked files."

[0067] In practice, the conversion of the civil engineering BIM model to obtain the MEP (Mechanical, Electrical, and Plumbing) BIM model mainly involves the integrated optimization of the MEP system piping. Specifically, clash detection can be performed in the second BIM software using the converted BIM model as a constraint to obtain a piping clash report, which can then be used to optimize and improve the MEP BIM model.

[0068] When Rebro is used as the second BIM software, the "Clash Detection" module can be loaded. The "Inspection Objects" to be checked in the civil engineering BIM model can be selected, and reasonable positional constraints can be set for these objects (e.g., distance from the civil engineering section, and spacing between pipes). Specifically, if the "Pipe" spacing is set to 100mm, representing the minimum value in the actual project, Rebro will classify two "pipes" with a spacing less than 100mm as colliding during clash detection. If no "Pipe" spacing is set, it indicates that there are no spacing requirements for "pipes" during construction; as long as no physical collision occurs, the software will only classify actual physical collisions as colliding. After the above configuration is complete, the "Clash Detection" module can be used to perform clash checks, obtaining clash issues and their corresponding numbers. Using these numbers, MEP (Mechanical, Electrical, and Plumbing) design engineers can view the corresponding clash issues and modify the corresponding and related parts of the MEP BIM model.

[0069] In practice, after performing collision detection using the aforementioned method, the corresponding collision detection results can be output. In practice, the aforementioned detection results can be output in the form of Excel, CG animation, CG screen, etc. The aforementioned detection results can be further used to form a "Pipeline Collision Report".

[0070] In some cases, during the aforementioned pipeline collision detection process, it may be determined that the problem lies not with the MEP BIM model design, but with the civil engineering BIM model design. In such cases, steps S140-S160 can be executed.

[0071] S140: If the design of the civil engineering BIM model is deemed unreasonable, the first BIM software is used to modify the civil engineering BIM model to obtain the modified civil engineering BIM model.

[0072] The specific execution process of S140 is the same as that of S110 above. However, instead of creating a civil engineering BIM model from scratch, it modifies the unreasonable design aspects of the existing civil engineering BIM model to obtain the modified civil engineering BIM model.

[0073] S150: Convert the format of the modified civil engineering BIM model to obtain a converted and modified civil engineering BIM model that can be loaded by a second BIM software.

[0074] S160: Under the constraints of converting and modifying the civil engineering BIM model, modify and / or re-examine the MEP system of the target building project to obtain a new version of the MEP BIM model.

[0075] The implementation processes of S150 and S160 are the same as those of S120 and S130 mentioned above, and will not be analyzed further here. For details, please refer to the previous text.

[0076] As analyzed above, the architectural project design method provided in this embodiment of the present disclosure uses BIM software applicable to both civil engineering and mechanical and electrical engineering components in the target architectural project for design, and converts the civil engineering BIM model into a converted civil engineering BIM model so as to serve as a constraint condition during the design and inspection of the mechanical and electrical engineering BIM model in the second BIM software.

[0077] Because the first and second BIM software programs are designed for civil engineering and MEP (Mechanical, Electrical, and Plumbing) BIM models respectively, the two software programs are used to design the corresponding BIM models separately. The civil engineering BIM model is then converted into a standard civil engineering BIM model for use as a constraint in the MEP BIM model design. Compared to the existing closed BIM software ecosystem, the solution presented in this disclosure leverages the advantages of various BIM software programs adapting to the design of corresponding types of BIM models. This improves the efficiency of BIM model design for building projects and reduces problems such as excessive module loading and incompatibility between project design and the underlying software, which can affect design and processing efficiency, as seen in closed BIM software ecosystems.

[0078] Some building projects employ irregularly shaped curved surfaces in their exterior and internal structural designs. Due to limitations in mathematical algorithms, the underlying algorithms of some BIM software are not suitable for these irregular curved surfaces. Using such BIM software for civil engineering design can lead to inefficiencies. To address this issue, some implementations consider using different BIM design software for the civil engineering design process, depending on the specific circumstances. Figure 2This is a flowchart of a building project design method based on open BIM provided in some other embodiments of this disclosure. For example... Figure 2 As shown, other embodiments provide architectural project design methods including S210-S2N0.

[0079] S210: Use third-party BIM software to construct irregular curved surfaces in the civil engineering part of the target building project, and obtain the irregular curved surface component model.

[0080] The third type of BIM software is suitable for designing irregular curved surface structures. For example, if the first BIM software is Revit, the third BIM software could be Rhino, which uses four-sided edges as the graphic design basis. Because using four-sided edges as the graphic basis for irregular curved surface design significantly reduces the amount of data involved in the design process compared to using triangular patches, it greatly improves software efficiency and reduces design inefficiencies caused by data creation and buffering.

[0081] In practice, when designing irregular curved surfaces in civil engineering sections using Rhino software, the Grasshopper plugin can be used to create these surfaces. After completing the design of the corresponding irregular curved surface construction, a model of the irregular curved surface can be obtained.

[0082] S220: Convert the format of the irregular surface construction model to obtain a converted irregular surface component model that can be opened by the first BIM software.

[0083] S230: Use the first BIM software to load and convert the model of irregular curved surface components, and create the model of non-irregular civil engineering parts to obtain the civil engineering BIM model.

[0084] The format conversion of irregular surface construction models is performed by using corresponding conversion middleware to convert them into irregular surface construction models that can be opened by first-class BIM software such as Revit.

[0085] After obtaining the modified irregular surface construction model, the conventional civil engineering structure model can then be created in the first BIM software to obtain the civil engineering BIM model. It should be noted that the creation of the conventional civil engineering structure model here is carried out under the premise of loading the modified irregular surface construction model, that is, under the constraints and coordination of the modified irregular surface components.

[0086] S240: Convert the format of the civil engineering BIM model to obtain a converted civil engineering BIM model that can be loaded by a second BIM software.

[0087] S250: Under the constraints of converting the civil engineering BIM model, a second BIM software is used to create and / or check the electromechanical system part of the target building project to obtain an electromechanical BIM model.

[0088] The execution process of S240-S250 is the same as described above, and will not be analyzed further here. For details, please refer to the relevant content above.

[0089] The solution provided in this disclosure uses third-party BIM software suitable for designing irregularly shaped curved surfaces in the civil engineering section, avoiding the inefficiency issues that occur when using first-party BIM software to design irregularly shaped curved surfaces. Combined with the foregoing analysis, this solution can further improve the model design efficiency for building projects including irregularly shaped curved surface structures.

[0090] In practice, when using the first BIM software to load an irregularly shaped surface model for civil engineering BIM model design, the resulting irregularly shaped surface model may not be entirely reasonable in its structural design. In this case, it is necessary to redesign the irregularly shaped surface portion based on the non-irregularly shaped surface portion, using the non-irregularly shaped surface portion as a reference for the structural design. To solve this problem, in some embodiments of the building project design method, after executing S250 to create a temporary civil engineering BIM model of the non-irregularly shaped civil engineering portion, and before obtaining the final civil engineering BIM model, the following steps S260-S270 may also be included.

[0091] S260: Convert the format of the temporary civil engineering BIM model to obtain a converted temporary civil engineering BIM model that can be opened by third-party BIM software.

[0092] As analyzed earlier, the temporary civil engineering BIM model already includes non-irregular-shaped civil engineering components. Converting the format of the temporary civil engineering BIM model involves using corresponding model middleware to process its format, resulting in a converted temporary civil engineering BIM model. This converted temporary civil engineering BIM model can then be opened and modified by third-party BIM software.

[0093] S270: Use third-party BIM software to load and convert the temporary civil engineering BIM model and adjust the overall irregular curved surface, and obtain the civil engineering BIM model based on the adjusted model.

[0094] After obtaining the temporary converted civil engineering BIM model, the aforementioned model is opened using a third BIM software and the corresponding content is modified to obtain a corrected civil engineering BIM model of the non-irregular curved surface components. This model can then be converted into a format that can be processed by the first BIM software to obtain the civil engineering BIM model.

[0095] By adopting the aforementioned S260-S270, efficient modifications to the civil engineering portion of a building project can be achieved, thereby improving the overall efficiency of the building project's structural design.

[0096] In practical implementation, to ensure that the corresponding pipelines in the MEP BIM model pass through the civil engineering BIM model without interference, openings need to be made at the corresponding locations in the civil engineering BIM model. In conventional structures, openings can be directly manipulated on the corresponding components in the civil engineering BIM model within the first BIM software. However, performing the aforementioned operations directly on irregular curved surfaces in the first BIM software would be very inefficient. Therefore, in practical implementation, the aforementioned S270 may include processing the irregular curved surface components in the temporary civil engineering BIM model using a third BIM software, and obtaining a civil engineering BIM model with openings on the irregular curved surface components based on the BIM model after the opening processing.

[0097] In practice, the corresponding pipelines can be added to the civil engineering BIM model, then the civil engineering BIM model can be converted into a temporary civil engineering BIM model. Based on the location of the pipelines in the temporary civil engineering BIM model, openings can be made in the corresponding irregular curved surface components to obtain the components with openings. After completing the opening processing at all necessary locations of the irregular curved surface components, a format conversion process is performed again to obtain the civil engineering BIM model. For example, when the third BIM software is Rhino and the first BIM software is Revit, the Rhino.inside.revit middleware installed in Revit can be used to convert the civil engineering BIM model into a .3dm format file and import it into the Rhino model. Rhino can then be used to make openings in the irregular curved surface components, and a format conversion is performed again to obtain the civil engineering BIM model with openings.

[0098] In a specific embodiment, the method can obtain the final BIM models corresponding to the civil engineering and infrastructure components. After obtaining the final version of the BIM model, the corresponding two-dimensional design drawings can also be output. The process of obtaining the corresponding two-dimensional design drawings includes two-dimensional drawing projection, drawing dimension annotation, and benchmark positioning. Engineering drawings have standards and mandatory regulations for the representation of two-dimensional drawings. The "planar representation" in the three-dimensional BIM model does not conform to the aforementioned standards and mandatory regulations. Therefore, it is necessary to correct the "planar representation" of the plan, elevation, and section views in the corresponding BIM model in the BIM software. After correcting the "planar representation," the dimensions of the corresponding components can be annotated using the BIM software, and finally, the corresponding drawings can be output using the drawing output function.

[0099] After obtaining the final versions of the civil engineering BIM model and MEP (Mechanical, Electrical, and Plumbing) BIM model using the methods described above, these models need to be transferred to the construction company. At this point, it's necessary to consider the BIM software used by the construction company and provide them with a suitable BIM model format. Specifically, the type of BIM model transferred to the construction company needs to be determined based on their software configuration. If the construction company has both primary and secondary BIM software configured, both the civil engineering and MEP BIM models can be transferred. However, if the construction company only has primary BIM software configured, the MEP BIM model can be converted to a format that can be loaded by primary BIM software, and then both the civil engineering BIM model and the converted MEP BIM model can be transferred to the construction company.

[0100] This disclosure also provides another approach to architectural project design based on open BIM. Figure 3 This is a flowchart illustrating a building project design method according to some embodiments of this disclosure. The method provided in this disclosure enables the design of a civil engineering BIM model for a building project, where the civil engineering portion includes irregularly shaped curved surface components. For example... Figure 3 As shown, the architectural project design method provided in this embodiment includes S310-S330.

[0101] S310: Use third-party BIM software to construct irregular curved surface components in the civil engineering part of the target building project, and obtain the irregular curved surface component model.

[0102] S320: Convert the format of the irregular surface construction model to obtain a converted irregular surface component model that can be opened by the fourth BIM software.

[0103] S330: Use the fourth BIM software to load and convert the model of irregular curved surface components, and create the model of non-irregular civil engineering parts to obtain the civil engineering BIM model and / or MEP BIM model of the target building project.

[0104] The third BIM software in this embodiment is suitable for constructing irregular curved surfaces, while the fourth BIM software is suitable for constructing civil engineering BIM models. The third and fourth BIM software are not directly compatible. Specifically, the implementation process of S310-S330 is the same as that of S210-S230 above, and will not be repeated here. Please refer to the previous analysis for details. In specific implementation, if the MEP (Mechanical, Electrical, and Plumbing) projects in the target building project are not particularly complex, the fourth BIM software can be Revit software.

[0105] The above are merely specific embodiments of this disclosure, enabling those skilled in the art to understand or implement this disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to these embodiments, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A building project design method based on open BIM, characterized in that, include: The first BIM software was used to create a model of the civil engineering part of the target building project, forming a civil engineering BIM model; The civil engineering BIM model is converted to a format to obtain a converted civil engineering BIM model that can be loaded by the second BIM software. Under the constraints of converting the civil engineering BIM model, the second BIM software is used to create and / or check the electromechanical system part of the target building project to obtain an electromechanical BIM model. Wherein: the first BIM software is a BIM software adapted for civil engineering BIM model construction, and the second BIM software is a BIM software adapted for electromechanical BIM model construction. The first BIM software and the second BIM software are not directly compatible. The target building project is a building that includes irregular curved surfaces; Before using the first BIM software to create a model of the civil engineering portion of the target building project, thus forming a civil engineering BIM model, the method further includes: A third-party BIM software was used to construct the irregular curved surfaces of the civil engineering portion of the target building project, resulting in an irregular curved surface construction model; the third-party BIM software is suitable for the design of irregular curved surface structures. The irregular surface construction model is converted to a format that can be opened by the first BIM software; The creation of a civil engineering model for a target building project using a first BIM software includes: loading the modified irregular surface construction model using the first BIM software, and creating a model for the non-irregular civil engineering parts to obtain the civil engineering BIM model.

2. The architectural project design method according to claim 1, characterized in that, The civil engineering BIM model is converted into a format to obtain a converted civil engineering BIM model that can be loaded by the second BIM software. The civil engineering BIM model is converted into an intermediate file using a first plugin installed in the first BIM software. The intermediate file is converted into the converted civil engineering BIM model using a second plugin installed in the second BIM software.

3. The architectural project design method according to claim 1, characterized in that, In the process of using the second BIM software to create and / or inspect the electromechanical system of the target building project, the method further includes: If the design of the civil engineering BIM model is deemed unreasonable, the first BIM software is used to modify the civil engineering BIM model to obtain the modified civil engineering BIM model. The modified civil engineering BIM model is converted to a new format to obtain a converted and modified civil engineering BIM model that can be loaded by the second BIM software. Under the constraints of the conversion and modification of the civil engineering BIM model, the electromechanical system part of the target building project is modified and / or re-checked to obtain a new version of the electromechanical BIM model.

4. The architectural project design method according to claim 1, characterized in that: The step of using the first BIM software to complete the model creation of the civil engineering part of the target building project includes: using Revit software to realize the model creation of the civil engineering part of the target building project; The step of using the second BIM software to create and / or inspect the electromechanical system of the target building project includes: using Rebro software to create and / or inspect the electromechanical system of the target building project.

5. The architectural project design method according to claim 1, characterized in that, After creating a temporary civil engineering BIM model for the non-irregular civil engineering portion and before obtaining the final civil engineering BIM model, the method further includes: The temporary civil engineering BIM model is converted to a format that can be opened by the third BIM software; The third BIM software is used to load the temporary civil engineering BIM model and adjust the overall irregular curved surface components, and the civil engineering BIM model is obtained based on the adjusted model.

6. The architectural project design method according to claim 5, characterized in that, Also includes: The location of the openings to be made in the civil engineering BIM model is determined based on the electromechanical BIM model. The step of loading the temporary civil engineering BIM model using the third BIM software and adjusting the overall irregular curved surface, and obtaining the civil engineering BIM model based on the adjusted model, includes: performing hole processing on the irregular curved surface components in the temporary civil engineering BIM model using the third BIM software, and obtaining the civil engineering BIM model with holes in the irregular curved surface components based on the BIM model after hole processing.

7. The architectural project design method according to any one of claims 1-4, characterized in that, Also includes: After obtaining the final versions of the civil engineering BIM model and the MEP BIM model, the corresponding two-dimensional design drawings are output respectively. The process of outputting the two-dimensional design drawings includes two-dimensional drawing projection, drawing dimension annotation, and benchmark positioning.

8. The architectural project design method according to any one of claims 1-4, characterized in that, Also includes: Based on the software status configured by the construction party, determine the type of BIM model to be passed to the construction party. Wherein: when the construction party configures the first BIM software and the second BIM software, the civil engineering BIM model and the electromechanical BIM model are transferred to the construction party; If the construction party only has the first BIM software configured, the MEP BIM model is converted to a format to obtain a converted MEP BIM model that can be loaded by the first BIM software; and the civil engineering BIM model and the converted MEP BIM model are transmitted to the construction party.

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