JP7332318B2 - Component comparison device for different BIM models, BIM model sharing system, component comparison method for different BIM models, and component comparison program for different BIM models - Google Patents

Description

Article 30, Paragraph 2 of the Patent Act applies October 10, 2018 Released at Architecture and IT Forum 2018 held at Ochanomizu Sola City (4-6 Kanda Surugadai, Chiyoda-ku, Tokyo)

Article 30, Paragraph 2 of the Patent Act applied November 21, 2018 Released at the front-line seminar on BIM utilization in structural design and confirmation applications held at Ochanomizu Sola City (4-6 Kanda Surugadai, Chiyoda-ku, Tokyo)

Application of Article 30, Paragraph 2 of the Patent Act February 6, 2019 Utilization of BIM in structural design and confirmation application held at the Osaka Prefectural Kenchiku Kenpo Kaikan (2-1-11 Izumi-cho, Chuo-ku, Osaka-shi, Osaka) Released at the Frontline Seminar

Applied Patent Law Article 30, Paragraph 2 February 7, 2019 At the forefront seminar on BIM utilization in structural design and confirmation application held at Imaike Gas Building (1-8-8 Imaike, Chikusa-ku, Nagoya City, Aichi Prefecture) published by

Application of Patent Law Article 30, Paragraph 2 March 20, 2019 At a BIM study session held at Autodesk Corporation (Harumi Island Triton Square Office Tower X 24F, 1-8-10 Harumi, Chuo-ku, Tokyo) Release

The present invention relates to an apparatus for comparing different BIM models, a method of comparing components, a program for comparing components, and a BIM model sharing system.

In architectural design, the layout of the building is determined while considering the conditions of the site and the surrounding environment. In this design design, not only two-dimensional drawings but also three-dimensional drawings including perspectives are created by using CAD (computer-aided design) which is widely used. Structural design involves setting the foundations and frameworks, and setting the specifications, shapes, and layout of columns, beams, walls, etc., in order to satisfy safety performance against snowfall, earthquakes, etc., for buildings designed according to this architectural design. It is carried out after the architectural design. In parallel with this structural design, or after the structural design, facility design is carried out to set up air conditioning equipment for a comfortable indoor environment, sanitary equipment connected to water and sewage, electrical equipment such as outlets and lighting. will be The architectural design, structural design, and facility design are changed several times while each designer shares information, and then the design of the building is completed.

Regarding the designed building, in addition to the three-dimensional drawing of the building, the floor plan of each floor (including the floor plan), the elevation drawing (including the framework drawing), and the equipment design drawing (hereinafter referred to as these Various drawings are called structural drawings) are prepared and submitted to the building certification application agency as building certification application documents. Among the building certification application documents, the drawing showing the calculation model used in the structural calculation and the structural drawing are carefully compared at the building certification application agency. That is, even if the results of structural calculation based on the calculation model indicate that the structure is structurally safe, there is no guarantee that the calculation model and the structural model on which the structural drawing is based will always match.

The building certification application documents are checked by the building certification application body, and until the confirmation application is finally approved, there are multiple design changes and subsequent structural calculations, and the creation of structural drawings based on the structural calculations as necessary. It will be done over a number of times, and the revised building certification application documents will be submitted each time.

In this way, from the initial structural design to the approval of the confirmation application, multiple calculation models are created, structural calculations are performed using the calculation models, and the structural model created based on the structural calculation results is used. A structural drawing is created. Structural design personnel check the consistency between structural calculation results based on calculation models created at different times in time series and structural drawings created based on each structural calculation result.

However, the structural design engineer, based on the structural calculation results, takes into consideration the arrangement of the structural elements such as beams and columns that make up the building, and various structural elements from the initial structural model. Since the specifications (dimensions, arrangement positions, etc.) are changed, the structural model based on the structural calculation results and the structural model after changing the specifications of the constituent elements may not match each other. Since the structural drawing is created based on the structural model after changing the specifications of the constituent elements, there is a gap between the calculation model that is the basis of the structural model based on the structural calculation results and the structural model after changing the specifications of the constituent elements. There will be members whose specifications do not match, and inconsistency will occur between the calculation model included in the confirmation application documents and the structural drawing based on the structural model.

Therefore, every time there is a design change or a change in the specifications of the structural elements, the structural designer compares the specifications of the various structural elements that form the calculation model with the specifications of the various structural elements that form the structural model after the specification change. However, it is necessary to identify the components whose specifications do not match, but the current situation is that this comparison requires a great deal of time and effort.

Here, a building information integrated management system has been proposed that enables access to appropriate information seamlessly between three-dimensional CAD data and building-related information. This building information integrated management system comprises a storage unit for storing three-dimensional model master data and building-related information master data including building-related information, a display unit for projecting and displaying an object on a viewport, and an object-based an extractor for extracting relevant architectural-related information and for extracting a menu list of viewports according to projection rules selected based on the object. a display control unit for displaying on a display unit a list of the extracted building-related information and a menu list of a plurality of viewports, the menu list including items for projecting and displaying an object; have. In this building information integrated management system, BIM (Building Information Modeling) is used to realize information integration by BIM, so that information can be shared among designers, designers, construction supervisors, construction contractors, etc. (see, for example, Patent Document 1).

JP 2015-38743 A

According to the building information integrated management system described in Patent Document 1, although it is possible to seamlessly access appropriate information between three-dimensional CAD data and building-related information, the above-mentioned problem, that is, structural calculation When the specifications of some of the constituent elements of the structural model created based on the original computational model are changed, it is not possible to efficiently identify the matching or mismatching of the related constituent elements in each model.

The present invention has been made in view of the above problems, and relates to BIM models such as BIM calculation models and BIM structural models, and can efficiently identify matching and mismatching specifications of related components of different BIM models. , a device for comparing different BIM models, a BIM model sharing system, a method for comparing different BIM models, and a program for comparing different BIM models.

In order to achieve the above object, one aspect of the device for comparing components of different BIM models according to the present invention includes:
a storage unit for storing different BIM models in which each component is associated with each other, with respect to a BIM model formed by a plurality of components including specification information;
an extraction unit that extracts the specification information of each component of each BIM model as text data;
and a display unit that displays the extracted text data of the respective BIM models side by side for each related component.

According to this aspect, the specification information of each component of different BIM models is extracted as text data by the extraction unit, and displayed side by side for each related component on the display unit, so that each relationship of different BIM models can be displayed. It is possible to easily and efficiently identify match/mismatch of components to be used. The BIM model component comparison device of this embodiment is formed by, for example, a personal computer, and the personal computer incorporates a storage section, an extraction section, and a display section.

Here, the BIM model refers to information on the shape of the components (also called objects, including beams, columns, walls, etc.) that make up the building in a virtual three-dimensional space, materials, dimensions, arrangement positions, etc. It is a three-dimensional model having information about (collectively referred to as "specification information"). Using this BIM model, you can create 3D drawings that look at the 3D model from various angles, cut the 3D drawing in various ways, plan views (including plan views) viewed from various angles, Create 2D drawings such as elevations (including framing). That is, each component that constitutes the three-dimensional model includes various specification information, and this specification information can be changed, corrected, and added, and the history of changes, additions, etc. can be left.

In addition, the "BIM model" includes a BIM calculation model in which a calculation model is converted into a BIM model, and a BIM structure model created based on the BIM calculation model. A BIM calculation model and a BIM structural model created based on this BIM calculation model, after part of the specification information of the constituent elements has been changed or new constituent elements have been added to the BIM calculation model BIM structure model etc. Each related component of different BIM models has, for example, a common ID or a related ID. By extracting the specification information on the constituent elements of both models as text data and displaying them side by side on the display unit, the structural designer, etc. can easily understand whether the specification information of the two members displayed side by side matches or does not match. can be easily identified. In addition, since the BIM model has a large number of components, on the display unit, the specification information about the components of both related models are displayed side by side as text data in two lines, and these are grouped as a set. , textual data relating to specification information for multiple sets of interrelated components is displayed.

Another aspect of the device for comparing components of different BIM models according to the present invention is characterized by further comprising a processing unit for creating or correcting the BIM model.

According to this aspect, the BIM model component element comparison device further includes a processing unit that creates or corrects the BIM model, so that the person in charge of design design, the person in charge of structural design, the person in charge of equipment design, and the person in charge of construction For example, various users can create and modify BIM models.

In another aspect of the device for comparing components of different BIM models according to the present invention, the different BIM models are two BIM calculation models whose structural calculation timings are different.

According to this aspect, for example, the BIM calculation model (the BIM model on which the structural calculation is based) when the building confirmation application documents were first submitted, the BIM calculation model after correction, and finally the confirmation application is permitted It is possible to efficiently identify the matching/disagreement of each related component of two BIM calculation models with different structural calculation periods, such as the BIM calculation model at the time of construction.

Further, in another aspect of the device for comparing components of different BIM models according to the present invention, the different BIM models include a BIM calculation model and a BIM structure model, which is created based on the BIM calculation model and is used as a structural drawing. It is characterized by

According to this aspect, for example, the BIM calculation model (the BIM model that is the basis of the structural calculation) when the confirmation application is finally permitted, and the BIM structural model (the basis of the structural drawing) based on this BIM calculation model It is possible to efficiently identify matches and discrepancies for each relevant component of the BIM model that is being used.

In another aspect of the device for comparing components of different BIM models according to the present invention, the BIM model is a BIM structural model created based on a BIM calculation model and used as a basis for structural drawings,
The different BIM models are two BIM structural models created at different times.

According to this aspect, for example, the BIM structural model (the BIM model that is the basis of the structural drawing) when the building certification application documents were first submitted, the BIM calculation model after correction, and finally the confirmation application is permitted It is possible to efficiently identify matching and mismatching of each related component of two BIM structural models created at different times, such as a BIM structural model when it is created.

Further, another aspect of the device for comparing components of different BIM models according to the present invention is characterized in that, in the display unit, when related components displayed side by side have different specification information, an alarm is displayed.

According to this aspect, when the related components have different specification information, the warning display enables the user to more easily identify the combination of the components with different specification information. Here, the "alarm display" includes a visually conspicuous color character display, a lighting display, and an audio warning in addition to these displays.

Another aspect of the device for comparing components of different BIM models according to the present invention is a structural calculation unit that performs structural calculation using a non-BIM calculation model;
and a conversion unit that converts data from the non-BIM calculation model to the BIM model.

According to this aspect, the non-BIM calculation model used for structural calculation in the structural calculation unit is converted to a BIM model (BIM calculation model on which structural calculation is based) via the conversion unit, so that BIM calculation A corresponding BIM computational model can be automatically created from a non-model computational model. Based on the BIM calculation model created in this way, a BIM structural model, which is the basis of the structural drawing, is created.

Commercially available structural calculation software is downloaded and installed in a personal computer or the like that constitutes a BIM model component comparison device. Model in software. In this modeling, specification information such as the material (rigidity, etc.), size, arrangement position, etc. of each component is input. Then, structural calculation software is used to execute structural calculation in the personal computer, and structural calculation data is stored in, for example, a storage unit. In the personal computer, conversion software that constitutes the conversion unit is installed in the same way, and a BIM calculation model is created from the non-BIM calculation model modeled in the structural calculation software via the conversion unit. .

Also, one aspect of the BIM model sharing system according to the present invention is
a structural user terminal used by a structural design user, comprising a component comparison device for different BIM models and a communication device;
a user terminal comprising: a BIM model processing device including at least a processing unit for creating or modifying a BIM model; and a communication device, and including at least a design user terminal used by a design user;
and a shared server in which the BIM model is transmitted from the communication device via a network and stored.

According to this aspect, the structural user terminal used by the structural design user and the design user terminal used by the architectural design user are communicably connected to the shared server via the network. You can proceed with each design work while sharing the BIM model that has been created each time.

In addition to design design users and structural design users, users who use user terminals include equipment design users, cost estimation users, construction planning users, execution engineering users, etc. There may be users in various stages such as Here, the BIM model sharing system of this aspect is applied with the Internet, LAN (Local Area Network), VAN (Value Added Network), etc. constructed by wireless communication, wired communication, mobile phone circuit communication, etc. It may be a closed network in which information is shared only within the company, or an open network in which information can be shared with external organizations. In the latter case, external organizations include confirmation application organizations and material and equipment supply companies.

In addition, one aspect of the component comparison method of different BIM models according to the present invention is
A storing step of storing different BIM models in which each component is associated with each other, with respect to a BIM model formed by a plurality of components including specification information;
an extraction step of extracting the specification information of each component of each BIM model as text data;
and a display step of arranging and displaying the extracted text data of each of the BIM models for each related component.

According to this aspect, the specification information of each component possessed by different BIM models is extracted as text data in the extraction step, and displayed side by side for each related component in the display step. Matches and mismatches of related components can be efficiently identified.

Also, one aspect of the component comparison program for different BIM models according to the present invention is
A storing step of storing different BIM models in which each component is associated with each other, with respect to a BIM model formed by a plurality of components including specification information;
an extraction step of extracting the specification information of each component of each BIM model as text data;
and a display step of arranging and displaying the extracted text data of the respective BIM models for each related component.

According to this aspect, a component comparison program installed in a personal computer or the like extracts the specification information of each component of different BIM models as text data, and displays them side by side for each related component on the computer screen. By performing the operations of , it is possible to efficiently identify the match/mismatch of the respective related components of the different BIM models.

As can be understood from the above description, according to the device for comparing components of different BIM models, the system for sharing BIM models, the method of comparing components of different BIM models, and the program for comparing components of different BIM models according to the present invention, Efficient identification of specification match/mismatch of related components of the model.

1 is a diagram showing an example of the overall configuration of a BIM model sharing system according to an embodiment; FIG. Fig. 2 shows an example of a hardware configuration of a structural user terminal comprising a component comparison device for different BIM models; It is a figure which shows an example of the hardware constitutions of a shared server. It is a figure which shows an example of the functional structure of a component comparison apparatus. It is a figure which shows an example of a non-BIM model. It is a figure which shows an example of the three-dimensional drawing of a BIM calculation model. It is a figure which shows an example of the three-dimensional drawing of a BIM structural model. It is a figure which shows an example of the top view of a BIM structural model. FIG. 4 is a diagram showing a state in which an example of a plan view of a BIM structure model is displayed on the screen of a personal computer; FIG. 3 is a diagram showing a state in which specification information of each component of a BIM structural model is displayed as text data on the screen of a personal computer; FIG. 4 is a diagram showing a state in which specification information of each component of a BIM calculation model is displayed as text data on the screen of a personal computer; The text data of the specification information of each component of the BIM structure model and the specification of each component of the BIM calculation model, which are two text data to be displayed side by side for each related component on the screen of the personal computer. It is a figure which shows the state in which the text data of information are displayed in parallel. FIG. 4 is a diagram showing a state in which two pieces of text data are displayed side by side for each related component on the screen of a personal computer; FIG. 4 is a diagram showing a state in which related components are displayed as a three-dimensional drawing on the screen of a personal computer; 4 is a flowchart of an example method for comparing components of different BIM models according to an embodiment; FIG. 2 is a sequence diagram of structural calculation work, structural drawing creation work, and confirmation work at a confirmation application organization;

An example of an apparatus for comparing different BIM model components, a BIM model sharing system, a method for comparing different BIM model components, and a program for comparing different BIM model components according to embodiments will be described below with reference to the accompanying drawings. do. In addition, in the present specification and drawings, substantially the same components may be denoted by the same reference numerals, thereby omitting duplicate descriptions.

[BIM model sharing system according to the embodiment]
First, an example of a BIM model sharing system according to an embodiment will be described with reference to FIG. Here, FIG. 1 is a diagram showing an example of the overall configuration of the BIM model sharing system according to the embodiment.

The BIM model sharing system 50 is formed by connecting the user terminal 10 and the external institution terminal 30 to the shared server 20 via the network 40 so as to be able to communicate with each other. The user terminal 10 has a design user terminal 10A, a structure user terminal 10B, an equipment user terminal 10C, etc., and furthermore, various user terminals such as an accumulation user terminal, a construction plan user terminal, and a construction user terminal (none of which are shown). User terminals may be included.

On the other hand, the external institution terminal 30 includes a device terminal 30A and a terminal (not shown) owned by a material and equipment supply company that cooperates in the stage of equipment design, construction planning, etc. can contain.

The network 40 includes the Internet, a LAN (Local Area Network), a VAN (Value Added Network), etc., which are constructed by wired communication, wireless communication, mobile phone lines, and the like. The BIM model sharing system 50 shown in the figure is not a closed network in which information is shared only within a company such as a house maker, but an open network in which information can be shared with external organizations. However, it may be in the form of having a closed network in which information is not shared with external organizations.

The shared server 20 is formed of a workstation or a personal computer, and receives and stores various information from the user terminal 10 or the like in response to various commands (requests) transmitted from the user terminal 10 or the like. Various stored information is transmitted to the user terminal 10 or the like.

Note that the shared server 20 may be a cloud server that allows a plurality of users to share various application software in addition to data storage. For example, using "BIM 360 Docs" (manufactured by Autodesk), which is application software common to the user terminal 10 and the external institution terminal 30, BIM data can be transmitted and received, and multiple BIM data transmitted and received at different times can be used. In terms of data, it may be possible to compare BIM data of any two epochs with each other.

The design user terminal 10A, the structure user terminal 10B, and the facility user terminal 10C are terminals used by the design designer, the structural designer, and the facility designer, respectively, and are formed by personal computers, tablets, and the like.

The BIM model sharing system 50 is a system for sharing BIM models of buildings. A BIM model contains information on the shape of beams, columns, walls, etc., which are the constituent elements (objects) that make up a building, in a virtual three-dimensional space, and information on materials, dimensions, arrangement positions, etc. It is a three-dimensional model that has "specification information").

Using this BIM model, you can create 3D drawings that look at the 3D model from various angles, cut the 3D drawing in various ways, plan views (including plan views) viewed from various angles, Two-dimensional drawings such as elevation drawings (including framework drawings) can be created, and various floor plans and elevation drawings are submitted to the confirmation application organization as building confirmation application documents as structural drawings, and permission for confirmation application is obtained. After going down, it is used for construction estimates, construction plans, etc., and for various construction drawings at the time of actual construction.

Each component that constitutes the three-dimensional model contains the various specification information described above, and this specification information can be changed, corrected, and added, and the history of changes, additions, etc. can be left. be.

In addition, the "BIM model" includes a BIM design model created by a design designer in the design user terminal 10A at the planning stage of a building, a BIM calculation model created by a structural designer in the structure user terminal 10B, and a BIM model. A BIM structure model created based on a calculation model is included.

At the planning stage, by looking at a three-dimensionally modeled building image (BIM design model), it is possible to directly imagine the appearance, layout design, etc. of the building. At the facility design stage, the comfort of the living space is taken into account by simulating the heat flow (flow of wind, air currents, etc.) inside the building and examining the relationship between the lighting arrangement and the light environment. can be designed. Furthermore, at the structural design stage and the construction planning stage, by checking 3D images, it is possible to check for interference with equipment, steel frames, piping, etc. can be grasped.

In this way, by sharing the BIM model, the building can be detailed from the initial planning and design stages of the building to the actual construction stage and even the post-construction maintenance stage. It is possible to clearly grasp the whole process and take the optimum measures functionally and efficiently each time.

The shared server 20 stores specification information related to various components necessary for the design and construction of a building, such as columns, beams, and walls that make up the building, as well as various facilities such as air conditioning equipment. For example, when designing a structure, a person in charge of structural design accesses the shared server 20 to obtain specification information of various components, or downloads the specification information of various components to the structure user terminal 10B or the like in advance. , used for structural design.

[Constituent Element Comparison Apparatus for Different BIM Models According to Embodiment]
Next, with reference to FIGS. 2 and 4, an example of a component comparison device for different BIM models according to the embodiment will be described, and with reference to FIG. 3, an example of a shared server will be described. Here, FIG. 2 is a diagram showing an example of the hardware configuration of the structural user terminal, and FIG. 3 is a diagram showing an example of the hardware configuration of the shared server. Also, FIG. 4 is a diagram showing an example of the functional configuration of the component comparison device.

As shown in FIG. 2, the structural user terminal 10B formed by a personal computer has a component comparison device 60 (a component comparison device for different BIM models) and a communication device 66 . The component comparison device 60 includes a CPU (Central Processing Unit) 61, NVRAM (Non-Volatile RAM) 62, RAM (Random Access Memory) 63, ROM (Read Only Memory) 64, HDD (Hard Disc Drive) 65, and the like. Each unit is connected via a bus so as to be able to transmit and receive data.

Various programs and data used by the programs are stored in the ROM 64 . The RAM 63 is used as a storage area for loading programs and as a work area for the loaded programs. The CPU 61 implements various functions by processing programs loaded in the RAM 63 . The HDD 65 stores programs and various data used by the programs. Various setting information and the like are stored in the NVRAM 62 . Although illustration is omitted, the design user terminal 10A, the equipment user terminal 10C, etc. also have the same hardware configuration as the component comparison device 60. FIG.

The communication device 66 is a device that communicates with the shared server 20 , and functions as a receiving unit that receives various data and signals transmitted from the shared server 20 . It functions as a transmission unit that transmits various data and signals to the shared server 20 .

Also, as shown in FIG. 3, a shared server 20 formed by a workstation or a personal computer has a CPU 21, NVRAM 22, RAM 23, ROM 24, HDD 25, communication device 26, etc., and each part receives data via a bus. Connected to be able to send and receive. The communication device 26 is a device that communicates with the user terminal 10 or the like, functions as a receiving unit that receives various data and signals transmitted from the user terminal 10 or the like, and receives various data and signals according to commands from the CPU 21 . It functions as a transmission unit that transmits to the user terminal 10 or the like.

Next, the function of each part of the component comparison device 60 will be described with reference to FIGS. 5 to 14 in addition to FIG. Here, FIGS. 5 to 8 are respectively a diagram showing an example of a non-BIM model, a diagram showing an example of a 3D drawing of a BIM calculation model, a diagram showing an example of a 3D drawing of a BIM structure model, and a BIM structure model. It is a figure which shows an example of the top view of. Also, FIG. 9 is a diagram showing a state in which an example of a plan view of a BIM structural model is displayed on the screen of the personal computer. 10 to 12 respectively show a state in which the specification information of each component of the BIM structure model is displayed as text data on the screen of the personal computer, and the specification information of each component of the BIM calculation model. is displayed as text data, and the text data of the specification information of each component of the BIM structure model, which is two text data to be displayed side by side for each related component, and the BIM FIG. 10 is a diagram showing a state in which text data of specification information of each component of a calculation model are displayed in parallel; Further, FIGS. 13 and 14 respectively show a state in which two pieces of text data are displayed side by side for each related component on the screen of a personal computer, and the related components are displayed as a three-dimensional drawing. It is a figure which shows the state currently carried out.

As shown in FIG. 4 , the component element comparison device 60 has an extraction unit 71 , a processing unit 72 , a display unit 73 , a structure calculation unit 74 , a conversion unit 75 , an input unit 76 and a storage unit 77 .

The storage unit 77 stores a BIM calculation model and a BIM structure model, which are BIM models formed by a plurality of components including specification information, and which are different BIM models in which the respective components are related to each other. The specification information of each component can be received from the shared server 20, for example.

The structural calculation unit 74 performs structural calculation using a non-BIM calculation model. Here, the structural calculation unit 74 includes BUS-6 (manufactured by Kozo System Co., Ltd.), etc., which is high-performance integrated structural calculation software for RC/SRC/S buildings. Here, RC indicates a reinforced concrete structure, SRC indicates a steel-framed reinforced concrete structure, and S indicates a steel-framed structure. The structural designer creates a calculation model in the calculation software based on the BIM design model designed by the design designer, inputs the specification information of the various components that make up the calculation model, and performs structural calculations. to run. Since the calculation model created in the calculation software in this way is not a BIM model, it becomes a non-BIM calculation model. FIG. 5 three-dimensionally shows an example of a non-BIM calculation model.

The structural designer uses the conversion unit 75 to convert the non-BIM calculation model shown in FIG. 5 into a BIM calculation model. Here, the conversion unit 75 includes ST-Bridge (manufactured by Building SMART Japan, Inc.) or the like that connects the structural calculation software and the BIM software.

On the other hand, the processing unit 72 includes BIM software such as Autodesk Revit (registered trademark) (manufactured by Autodesk).

FIG. 6 three-dimensionally shows an example of a BIM calculation model created by activating the BIM software by converting the non-BIM calculation model shown in FIG.

Although the BIM calculation model is included in the BIM model, it is a model that is the basis of structural calculations, and this BIM calculation model includes information on structural elements such as beams and columns that are necessary for structural calculations. However, it does not basically include information on structural elements that are unnecessary for structural calculations, such as wing walls and stairs.

The person in charge of structural design adds various components that were unnecessary for the structural calculation to the BIM calculation model in the processing section 72 for the BIM calculation model that cleared the predetermined structural safety by structural calculation. By doing so, a BIM structure model is created. For this processing, the person in charge of structural design creates a BIM structural model through an input unit 76 such as a keyboard, mouse, and touch panel. Both the BIM calculation model and the BIM structure model are included in the BIM model. FIG. 7 three-dimensionally shows an example of a BIM structural model in which external evacuation stairs, which were unnecessary for structural calculation, are added to the BIM calculation model shown in FIG.

The BIM structural model includes non-structural members such as stairs, walls, ceilings, floors, doors, windows, and various pipes in addition to structural members such as beams and columns that are necessary for structural calculations in the building to be designed. It is a model that serves as a basis for structural drawings, which are a type of confirmation application documents to be submitted to confirmation application organizations. For example, using BIM software, in addition to the three-dimensional BIM structural model shown in FIG. 7, two-dimensional structural drawings such as plan views and elevation views of each floor can be created. FIG. 8 shows part of a plan view of a certain floor as a structural drawing.

The display unit 73 has a function of displaying an operation screen for a user based on a command from the CPU 61, and is formed of a liquid crystal display (LCD) or the like. FIG. 9 shows an example of a plan view of the BIM structural model displayed on the display unit 73. As shown in FIG. In FIG. 9, various add-in tools are set in the upper part of the screen, and when the add-in tool "member check" is selected, the extraction unit 71 is activated.

The extraction unit 71 extracts the specification information of each component of the BIM calculation model and the BIM structure model as text data. This text data includes a text file in TXT format, a text file in CSV format, etc., and the specification information database of each component of the BIM calculation model and the BIM structure model is stored as a text file, for example, Excel (registered trademark). Extract (export) to .

FIG. 10 shows a state in which the specification information of each component of the BIM structure model is extracted as text data into Excel. On the other hand, FIG. 11 shows a state in which the specification information of each component of the BIM calculation model corresponding to the BIM structure model shown in FIG. 10 is extracted as text data into Excel. The data shown in FIGS. 10 and 11 are data related to RC girders as shown in the lower part of the screen, but as shown in the lower part of the screen, data related to other structural members such as S girders and RC main girders are also all text data. is extracted to Excel as

Here, regarding different BIM models formed by a plurality of components including specification information, the component comparison device 60 displays related components of each BIM model side by side as extracted text data, and displays related components. It is a device that identifies match/mismatch of components. As described above, for example, a person in charge of structural design decides between the BIM calculation model based on the calculation model that is the basis of the structural calculation and the BIM structural model created by processing this BIM calculation model. This is done because there is a possibility that part of the specification information (dimensions, arrangement positions, etc.) of the components has been changed and is not consistent. The BIM calculation model reflects the calculation model that is the basis of the structural calculation, and on the other hand, the BIM structural model is reflected in the structural drawing. Permission will not be granted.

In addition, when submitting confirmation application documents to the confirmation application organization, it is often the case that corrections are requested after the documents are checked by the confirmation application organization, and the structural design person in charge of the BIM structural model It will be reviewed. At that time, since the specification information of the constituent elements that make up the BIM structural model may change, if the changed constituent element is a necessary constituent element for structural calculation, it will be necessary to redo the structural calculation again. Then, a BIM calculation model is created based on the calculation model that is the basis for the structural calculation again, and a structural drawing is created again using the BIM structure model based on this BIM calculation model.

In this way, even between a plurality of BIM calculation models (calculation data) with different structural calculation periods, each component of different BIM calculation models (different BIM models) can be clearly identified in order to clearly identify changed components. It is necessary to identify the match/mismatch of In addition, matching of each component of different BIM structural models (different BIM models) to unambiguously identify changed components even between multiple BIM structural models (structural drawings) created at different times • Discrepancies need to be identified.

In this way, the different BIM models to be compared by the component comparison device 60 include (1) two BIM calculation models with different structural calculation timings, (2) a BIM calculation model, and a BIM calculation model based on this BIM calculation model. The created BIM structural model that is the basis of the structural drawing, (3) two BIM structural models created at different times, and the like are included.

As shown in FIG. 12, the extraction unit 71 displays a list of text data relating to the specification information of each component of the mutually related BIM calculation model and BIM structure model shown in FIGS. Then, as shown in FIG. 13, related components are selected based on their related IDs, arranged, and displayed as a list.

FIG. 13 shows that the components of the BIM calculation model with ID: 4172166 have been changed so that the dimensions of the components of the BIM structure model are increased. In addition, in FIG. 13, "O" in the vertical column indicates the back of the H-section steel, and "R" indicates the flange thickness of the H-section steel. 300×12×17, indicating that the H-section steel used in the BIM structural model is 588×300×12×20.

As shown in FIG. 13, if the related components do not match in the display unit 73, a warning is displayed on the screen, so that the structural designer can easily identify the components that do not match each other. can do.

In addition, as shown in FIG. 14, the display unit 73 can also display related components on the drawing. In FIG. 14, the components without dots indicate the components of the BIM calculation model, and the components with high density dots are the components of the BIM structure model, and have different specification information from the components without dots. indicates that there is On the other hand, the sparsely-dotted components indicate components of the BIM computational model and the BIM structural model that are in agreement with each other. In this way, it is also possible to confirm the match/dismatch of related components from the drawings.

As described above, according to the component comparison device 60, it is possible to easily and efficiently identify whether the specifications of related components of different BIM models match or disagree. Although illustration of functional configuration diagrams of the design user terminal 10A and the equipment user terminal 10C is omitted, the design user terminal 10A includes the processing section 72, the display section 73, and the component comparison device 60 shown in FIG. It has an input section 76 and a storage section 77 . On the other hand, the facility user terminal 10C has the same functional configuration as the component comparison device 60 shown in FIG. 4, for example.

[Method for comparing components of different BIM models according to the embodiment]
Next, an example of a component comparison method of different BIM models according to the embodiment will be described with reference to FIG. 15 . Here, FIG. 15 is a flow chart of an example of a component comparison method of different BIM models according to the embodiment.

In the component comparison method, first, regarding a BIM model formed by a plurality of components including specification information, a storing step is performed to store different BIM models in which each component is associated with each other (step S10).

As already described using FIG. 4 and the like, the conversion unit 75 converts the data of the non-BIM calculation model into the BIM calculation model, and then the BIM calculation model is stored in the storage unit 77 . After the BIM structure model is created from the BIM calculation model using the processing unit 72 , this BIM structure model is stored in the storage unit 77 . In addition, when a plurality of structural calculations and a BIM calculation model based thereon and a BIM structural model are created, a plurality of BIM calculation models created at different times are stored in the storage unit 77, or different A plurality of BIM structure models created at that time are stored in the storage unit 77 .

Next, an extracting process is executed to extract specification information of each component of the different BIM models to be compared as text data (step S20).

As already described using FIG. 4 and the like, the extraction unit 71 extracts the specification information of each component of the BIM calculation model and the BIM structure model as text data.

Next, a display step is performed to display the extracted text data of each BIM model side by side for each related component (step S30).

As already described with reference to FIG. 4 and the like, on the display unit 73, related components of different BIM models are selected based on their related IDs, arranged, and displayed as a list.

The component comparison method shown in FIG. 15 is also a series of processing flows executed in the component comparison device 60. By installing a program including this series of processing flows in a computer, the component comparison device 60 may be formed.

[Example from structural calculation using the BIM model sharing system to confirmation application permission]
Next, an example from structural calculation using the BIM model sharing system to confirmation application approval will be described with reference to FIG. 16 .

FIG. 16 shows, in order from the top, the confirmation application agency, the structural calculation work by the structural designer, and the structural drawing preparation work by the structural designer. First, structural calculation is started at date t0, and calculation data A based on the calculation model is created at date t1. A BIM calculation model is created by data conversion of this calculation model.

In the structural drawing creation work, the person in charge of structural design adds various constituent elements that were unnecessary for structural calculation to the BIM calculation model, By reviewing the arrangement, etc., a BIM structure model is created at date t2, and a structural drawing A is created based on this BIM structure model.

In creating structural drawing A, there was a change in the specification information of some of the structural elements required for structural calculation between the BIM structural model and the original BIM calculation model, so in the structural calculation work, it corresponded to the BIM structural model. A BIM calculation model is created again, structural design is performed again using a calculation model based on this BIM calculation model, and calculation data B is created at date and time t3. A modified BIM calculation model is created by data conversion of this calculation model.

In the structural drawing creation work, by reviewing the arrangement of some of the constituent elements of the corrected BIM calculation model again, a corrected BIM structural model is created at date t4, and this corrected BIM Create a structural drawing B based on the structural model.

Confirmation application documents including this structural drawing B are submitted to the confirmation application organization. The confirmation application organization checks the submitted confirmation application documents, and at date and time t5, issues correction instructions such as requesting incompleteness in the documents and partial design changes.

The structural designer who received the correction instruction corrects the structural model again in structural calculation work, and creates calculation data C based on this corrected structural model at time t6. A modified BIM calculation model is created by data conversion of this modified calculation model.

In the structural drawing creation work, various structural elements that were not necessary for structural calculations are added to the revised BIM calculation model, and the dimensions and layout of some of the structural elements that are necessary for structural calculations are reviewed. By doing so, a BIM structural model is created at date t7, and a structural drawing C based on this BIM structural model is created.

In creating the structural drawing C, there was a change in the specification information of some of the structural elements required for structural calculation between the BIM structural model and the BIM calculation model at the time of submitting the confirmation application, so in the structural calculation work, the BIM structural model A BIM calculation model corresponding to is created again, structural design is performed again using the calculation model based on this BIM calculation model, and calculation data D is created at date and time t8. By converting the data of this calculation model, a revised BIM calculation model is created.

In the structural drawing creation work, a revised BIM structural model is created again at date t9 by reviewing the arrangement of some of the constituent elements of the revised BIM calculation model again, and this revised again A structural drawing D is created based on the BIM structural model.

The revised confirmation application documents including this structural drawing D are submitted to the confirmation application organization. The confirmation application organization checks the submitted confirmation application documents again, confirms that there are no deficiencies in the documents and that there is no need for design change again at time t10, and approves the confirmation application.

In such a series of flows from the first structural calculation to approval of confirmation application, the consistency X1 between the calculation data B and the structural drawing B and the consistency X2 between the calculation data D and the structural drawing D , the BIM model sharing system 50 according to the embodiment is applied. By applying the BIM model sharing system 50, the consistency check between such calculation data and structural drawings can be efficiently performed on the side of the person in charge of structural design and further on the side of the organization applying for confirmation. can be done.

In addition, consistency between calculation data created at different times, such as confirmation of consistency Y1 between calculation data B and calculation data D, consistency Y2 between structural drawing B and structural drawing D, etc. Also checking consistency between structural drawings can be efficiently performed by applying the BIM model sharing system 50 .

It should be noted that other embodiments may be possible in which other components are combined with the configurations described in the above embodiments, and the present invention is not limited to the configurations shown here. Regarding this point, it is possible to change without departing from the gist of the present invention, and it can be determined appropriately according to the application form.

10: user terminal, 10A: design user terminal, 10B: structure user terminal, 10C: facility user terminal, 20: shared server, 26: communication device, 30: external institution terminal, 30A: confirmation application institution terminal, 40: network, 50: BIM model sharing system, 60: component comparison device (component comparison device for different BIM models), 66: communication device, 71: extraction unit, 72: processing unit, 73: display unit, 74: structure calculation unit, 75: conversion unit, 76: input unit, 77: storage unit

Claims (7)

a storage unit for storing different BIM models in which each component is associated with each other, with respect to a BIM model formed by a plurality of components including specification information;
an extraction unit that extracts the specification information of each component of each BIM model as text data;
a display unit that displays the extracted text data of each of the BIM models side by side for each related component ,
A device for comparing components of different BIM models, wherein the different BIM models are a BIM calculation model and a BIM structural model that is created based on the BIM calculation model and is a basis for structural drawings. 2. The device for comparing components of different BIM models according to claim 1, further comprising a processing unit for creating or modifying said BIM model. 3. The device for comparing components of different BIM models according to claim 1 or 2, wherein in said display unit, when related components displayed side by side have different specification information, a warning is displayed. A structural calculation unit that performs structural calculation using a non-BIM calculation model;
4. The device for comparing components of different BIM models according to any one of claims 1 to 3 , further comprising a conversion unit for data conversion of said non-BIM calculation model to said BIM model. A structural user terminal used by a structural design user, comprising the device for comparing components of different BIM models according to any one of claims 1 to 4 and a communication device;
a user terminal comprising: a BIM model processing device including at least a processing unit for creating or modifying a BIM model; and a communication device, and including at least a design user terminal used by a design user;
A BIM model sharing system, comprising: a shared server in which the BIM model is transmitted from the communication device via a network and stored. A storing step of storing different BIM models in which each component is associated with each other, with respect to a BIM model formed by a plurality of components including specification information;
an extraction step of extracting the specification information of each component of each BIM model as text data;
a displaying step of arranging and displaying the extracted text data of each of the BIM models according to related components ;
A method for comparing constituent elements of different BIM models, wherein the different BIM models are a BIM calculation model and a BIM structural model that is created based on the BIM calculation model and is a basis for structural drawings. A storing step of storing different BIM models in which each component is associated with each other, with respect to a BIM model formed by a plurality of components including specification information;
an extraction step of extracting the specification information of each component of each BIM model as text data;
causing a computer to execute a display step of arranging and displaying the extracted text data of each of the BIM models by related components ;
A program for comparing components of different BIM models, wherein the different BIM models are a BIM calculation model and a BIM structure model that is created based on the BIM calculation model and is a source of structural drawings.

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