JP2020166327A - Element comparison device of different bim models, bim model sharing system, element comparison method of different bim models, and element comparison program of different bim models - Google Patents

Abstract

To provide an element comparison device of different BIM models, a BIM model sharing system, an element comparison method of the different BIM models, and an element comparison program of the different BIM models which can efficiently identify coincidence/non-coincidence of the specification of related elements of different BIM models, related to a BIM model such as a BIM calculation model and a BIM structure model.SOLUTION: An element comparison device 60 of different BIM models has: a storage unit 77 which stores different BIM models in which each element is related mutually, related to a BIM model formed of a plurality of elements including specification information; an extraction unit 71 which extracts the specification information of each element owned by each BIM model as text data; and a display unit 73 which displays the text data of each extracted BIM model, side by side for each related element.SELECTED DRAWING: Figure 4

Description

The present invention relates to a component comparison device for different BIM models, a component comparison method, a component comparison program, and a BIM model sharing system.

In architectural design, the layout of the building is decided in consideration of the conditions of the site and the surrounding environment, and the design design is first performed to design the interior / exterior, floor plan composition, decoration, etc. In this design design, by using a generally popular CAD (Computer-aided design), not only a two-dimensional drawing but also a three-dimensional drawing including perspective is created. For the building designed by this design design, the structural design is to set the foundation and frame, and set the specifications, shape, and arrangement of columns, beams, walls, etc. so as to satisfy the safety performance against snowfall and earthquakes. It is performed after the design design. In addition, in parallel with or after the structural design, equipment design is carried out to set air conditioning equipment for a comfortable indoor environment, sanitary equipment leading to water and sewage, electrical equipment for arranging outlets and lighting, etc. Will be. In these design design, structural design, and equipment design, the design of the building is completed after the design changes are made multiple times while each designer shares information with each other.

Regarding the designed building, in addition to the three-dimensional drawing of the building, the floor plan (including the plan view), the elevation view (including the framework drawing), the facility design drawing, etc. of each floor (hereinafter, these) Various drawings are called structural drawings) and submitted to the building confirmation application organization as building confirmation application documents. Among the building confirmation application documents, the drawing showing the calculation model used in the structural calculation and the structural drawing are carefully compared by the building confirmation application organization. That is, even if it is shown that the structural calculation result based on the calculation model is structurally safe, there is no guarantee that the calculation model and the structural model on which the structural drawing is based are in agreement.

By the time the building confirmation application documents are checked by the building confirmation application organization and the confirmation application permission is finally given, design changes will be made as necessary, re-structural calculations will be performed, and structural drawings based on the structural calculations will be created. It will be carried out multiple times, and the revised building confirmation application documents will be submitted each time.

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

However, the person in charge of structural design has various components from the initial structural model in consideration of the accommodation of the components such as beams and columns that make up the building, with respect to the structural model created based on the structural calculation results. In order to change the specifications (dimensions, arrangement position, etc.) of the above, the structural model based on the structural calculation result and the structural model after the specification change of the components may not match each other. Since the structural drawing is created based on the structural model after the specification change of the component, between the calculation model that is the basis of the structural model based on the structural calculation result and the structural model after the specification change of the component. Will result in parts that do not match the specifications, resulting in inconsistency between the calculation model included in the confirmation application document and the structural drawing based on the structural model.

Therefore, the person in charge of structural design compares the specifications of the various components that form the calculation model with the specifications of the various components that form the structural model after the specification change each time the design is changed or the specifications of the components are changed. 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 seamless access to appropriate information between three-dimensional CAD data and building-related information. This building information integrated management system is based on a storage unit that stores three-dimensional model master data and building-related information master data including building-related information, a display unit that projects an object onto a view port, and an object. It has an extraction unit that extracts related building-related information and extracts a menu list of viewports according to projection rules selected based on the object. Further, a list of extracted building-related information and a display control unit for displaying a menu list including items for projecting and displaying objects in the menu list of a plurality of viewports are displayed on the display unit. Have. Then, in this building information integrated management system, information is shared among designers, designers, construction supervisors, construction contractors, etc. by realizing information integration by BIM using BIM (Building Information Modeling). (See, for example, Patent Document 1).

JP-A-2015-38743

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

The present invention has been made in view of the above problems, and it is possible to efficiently identify the matching / disagreement of the specifications of the related components of different BIM models with respect to the BIM model such as the BIM calculation model and the BIM structure model. It is an object of the present invention to provide a component comparison device for different BIM models, a BIM model sharing system, a component comparison method for different BIM models, and a component comparison program for different BIM models.

In order to achieve the above object, one embodiment of the component comparison device of different BIM models according to the present invention
With respect to a BIM model formed by a plurality of components including specification information, a storage unit in which each component stores different BIM models related to each other, and a storage unit.
An extraction unit that extracts the specification information of each component of each BIM model as text data,
It is characterized by having a display unit for displaying the text data of each of the extracted 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 by displaying the related components side by side in the display unit, each relationship of different BIM models is exhibited. It is possible to easily and efficiently identify the match / mismatch of the constituent elements. The component comparison device of the BIM model of this embodiment is formed by, for example, a personal computer, and the storage unit, the extraction unit, and the display unit are built in the personal computer.

Here, the BIM model is information on the shape of a building (also called an object, including beams, columns, walls, etc.) in a virtual three-dimensional space, and the material, dimensions, arrangement position, etc. It is a three-dimensional model that has information about (collectively referred to as "specification information"). Using this BIM model, you can create 3D drawings of 3D models viewed from various angles, cut 3D drawings in various ways, and plan views (including plan views) viewed from various angles. You can create 2D drawings such as elevations (including framing). That is, each component constituting the three-dimensional model includes various specification information, and this specification information can be changed, modified, or added, and a history of changes or additions can be recorded.

Further, the "BIM model" includes a BIM calculation model in which the calculation model is BIM modeled, and a BIM structure model created based on the BIM calculation model. The "different BIM model" is, for example, A BIM calculation model and a BIM structure model created based on this BIM calculation model, after a part of the specification information of the components is changed or a new component is added to the BIM calculation model. It means the BIM structure model of. Each related component of a different BIM model has, for example, a common ID or a related ID, and for a different BIM model stored in the storage unit, the extraction unit has a common ID or a related ID. By extracting the specification information related to the components of both models having the above as text data and displaying them side by side on the display unit, the structural designer, etc. can match or disagree with the specification information of both members displayed side by side. Can be easily identified. Since the BIM model has a large number of components, the display unit displays the specification information regarding the components of both related models side by side as text data on two lines, and this is displayed as a set. , Text data about the specification information of a large number of interrelated components is displayed.

In addition, another aspect of the component comparison device for different BIM models according to the present invention is further characterized by further having a processed portion for creating or modifying the BIM model.

According to this aspect, the component comparison device of the BIM model further has a processing unit for creating or modifying 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 It becomes possible for various users to create and modify BIM models.

Further, in another aspect of the component comparison device of different BIM models according to the present invention, the different BIM models are characterized by being two BIM calculation models having different timings of structural calculation.

According to this aspect, for example, the BIM calculation model (the BIM model that is the basis of the structural calculation) when the building confirmation application document is first submitted, the modified BIM calculation model, and finally the confirmation application are permitted. It is possible to efficiently identify the match / mismatch of each related component of two BIM calculation models having different timings of structural calculation, such as the BIM calculation model at the time of calculation.

Further, in another aspect of the component comparison device of the different BIM model according to the present invention, the different BIM model is a BIM calculation model and a BIM structure model which is a basis of a structural drawing created based on the BIM calculation model. It is characterized by being.

According to this aspect, for example, a BIM calculation model (the BIM model that is the basis of the structural calculation) when the confirmation application is finally approved and a BIM structural model (the source of the structural drawing) based on this BIM calculation model. It is possible to efficiently identify the match / mismatch of each related component of the BIM model).

Further, in another aspect of the component comparison device of different BIM models according to the present invention, the BIM model is a BIM structural model which is a basis of a structural drawing and is created based on a BIM calculation model.
The different BIM models are characterized by being two BIM structural models with different creation 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 confirmation application document is first submitted, the modified BIM calculation model, and finally the confirmation application are permitted. It is possible to efficiently identify the match / mismatch of each related component of two BIM structural models that are created at different times, such as the BIM structural model at the time of creation.

In addition, another aspect of the component comparison device of a different BIM model according to the present invention is characterized in that an alarm is displayed when the related components displayed side by side have different specification information in the display unit.

According to this aspect, the alarm is displayed when the related components have different specification information, so that the user can more easily identify the combination of the components having different specification information. Here, the "alarm display" includes a display with visually conspicuous colored characters and the like, a lighting display, a voice warning in addition to these displays, and the like.

In addition, another aspect of the component comparison device of different BIM models according to the present invention is a structural calculation unit that performs structural calculation using a non-BIM calculation model.
It is characterized by further including a conversion unit that converts the non-BIM calculation model into the BIM model.

According to this aspect, the non-BIM calculation model used for the structural calculation in the structural calculation unit is converted into a BIM model (BIM calculation model which is the basis of the structural calculation) via the conversion unit, thereby performing the BIM calculation. A corresponding BIM calculation model can be automatically created from a calculation model that is not a model. Based on the BIM calculation model created in this way, the BIM structural model that is the basis of the structural drawing is created.

Here, commercially available structural calculation software is installed by downloading or the like on a personal computer or the like that forms a component comparison device of the BIM model, and the person in charge of structural design uses the designed building for structural calculation. Model in software. In this modeling, specification information such as material (rigidity, etc.), dimensions, and arrangement position of each component is input. Then, the structural calculation software executes the structural calculation in the personal computer, and the structural calculation data is stored in, for example, the storage unit. In the personal computer, the conversion software that constitutes the conversion unit is also installed, and the BIM calculation model is created from the non-BIM calculation model modeled in the structural calculation software via the conversion unit. ..

Moreover, one aspect of the BIM model sharing system according to the present invention is
A structural user terminal provided with a component comparison device and a communication device of the different BIM model and used by a structural design user.
A user terminal including at least a BIM model processing device including a processing unit for creating or modifying a BIM model, a communication device, and a design user terminal used by a design design user.
It is characterized by having a shared server in which the BIM model is transmitted and stored from the communication device via a network.

According to this aspect, the structural user terminal used by the structural design user and the design user terminal used by the design design user are communicably connected to the shared server via the network, so that each user is stored in the shared server. Each design work can be carried out while sharing the BIM model that has been created each time.

Users who use the user terminal include design design users, structural design users, equipment design users, integration users, construction planning users, construction users, etc., from the design stage to the construction stage, and further to the maintenance stage after construction. There can be users at various stages such as. Here, the BIM model sharing system of this aspect is applied to the Internet, LAN (Local Area Network), VAN (Value Added Network), etc. constructed by wireless communication, wired communication, mobile phone circuit communication, etc., and is one. 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 an external organization. External organizations in the latter case include confirmation application organizations and equipment supply companies.

Moreover, one aspect of the component comparison method of different BIM models according to the present invention is.
With respect to a BIM model formed by a plurality of components including specification information, a storage process in which each component stores different BIM models related to each other, and a storage process.
An extraction process for extracting the specification information of each component of each BIM model as text data, and
It is characterized by having a display step of displaying the text data of each of the extracted 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 in the extraction process, and by displaying the related components side by side in the display process, each of the components of different BIM models has. It is possible to efficiently identify the match / mismatch of related components.

In addition, one aspect of the component comparison program of different BIM models according to the present invention is.
With respect to a BIM model formed by a plurality of components including specification information, a storage process in which each component stores different BIM models related to each other, and a storage process.
An extraction process for extracting the specification information of each component of each BIM model as text data, and
It is characterized by having a computer execute a display step of displaying the text data of each of the extracted BIM models side by side for each related component.

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

As can be understood from the above description, according to the component comparison device of different BIM models, the BIM model sharing system, the component comparison method of different BIM models, and the component comparison program of different BIM models according to the present invention, different BIMs are used. It is possible to efficiently identify the matching / mismatching of the specifications of the related components of the model.

It is a figure which shows an example of the whole structure of the BIM model sharing system which concerns on embodiment. It is a figure which shows an example of the hardware composition of the structural user terminal provided with the component comparison device of a different BIM model. It is a figure which shows an example of the hardware configuration of a shared server. It is a figure which shows an example of the functional structure of the component comparison apparatus. It is a figure which shows an example of the non-BIM model. It is a figure which shows an example of the 3D drawing of the BIM calculation model. It is a figure which shows an example of the 3D drawing of a BIM structure model. It is a figure which shows an example of the plan view of the BIM structure model. It is a figure which shows the state which an example of the plan view of the BIM structure model is displayed on the screen of a personal computer. It is a figure which shows the state which the specification information of each component of a BIM structure model is displayed as text data on the screen of a personal computer. It is a figure which shows the state which the 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, which is the two target text data displayed side by side for each related component on the screen of the personal computer, and the specifications of each component of the BIM calculation model. It is a figure which shows the state which the text data of information is displayed in parallel. It is a figure which shows the state which two text data are displayed side by side for each related component on the screen of a personal computer. It is a figure which shows the state which the related component is displayed as a three-dimensional drawing on the screen of a personal computer. It is a flowchart of an example of the component comparison method of the different BIM model which concerns on embodiment. It is a sequence diagram of the structural calculation work, the structural drawing creation work, and the confirmation work in the confirmation application organization.

Hereinafter, an example of a component comparison device for different BIM models, a BIM model sharing system, a component comparison method for different BIM models, and a component comparison program for different BIM models according to the embodiment will be described with reference to the attached drawings. To do. In the present specification and the drawings, substantially the same components may be designated by the same reference numerals to omit duplicate explanations.

[BIM model sharing system according to the embodiment]
First, an example of the BIM model sharing system according to the 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 engine terminal 30 to the shared server 20 via the network 40 so as to be communicable. The user terminal 10 includes a design user terminal 10A, a structural user terminal 10B, an equipment user terminal 10C, and the like, and further includes various types such as an integration user terminal, a construction planning user terminal, and an implementation work user terminal (none of which are shown). It may include a user terminal.

On the other hand, the external engine terminal 30 includes, in addition to the confirmation application institution terminal 30A, a material / equipment supply company terminal (not shown) owned by a material / equipment supply company that collaborates at the stage of equipment design, construction planning, etc. Can include.

The Internet, LAN (Local Area Network), VAN (Value Added Network), etc. constructed by wired communication, wireless communication, mobile phone line, etc. are applied to the network 40. The BIM model sharing system 50 in the illustrated example is not a closed network in which information is shared only within a company such as one house maker, but also has an open network in which information can be shared with an external organization. However, it may be in the form of having a closed network that does not share information with an external organization.

The shared server 20 is formed by 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 information stored in the user terminal 10 and the like is transmitted.

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

The design user terminal 10A, the structural user terminal 10B, and the equipment user terminal 10C are terminals used by the design design person, the structural design person, and the equipment design person, respectively, and are formed by a personal computer, a tablet, or the like.

The BIM model sharing system 50 is a system for sharing the BIM model of a building. The BIM model is information on shapes in a virtual three-dimensional space regarding beams, columns, walls, etc., which are components (objects) that make up a building, and information on materials, dimensions, placement positions, etc. (collecting these). It is a three-dimensional model having "specification information").

Using this BIM model, it is possible to create 3D drawings of 3D models viewed from various angles, cut 3D drawings in various ways, and plan views (including plan views) viewed from various angles. Two-dimensional drawings such as elevations (including framework drawings) can be created, and various floor plans and elevations are submitted to the confirmation application organization as construction confirmation application documents as structural drawings, and confirmation application permission is granted. After descending, it will be used for construction estimates, construction plans, etc., and will be used for various construction drawings during the construction work.

Each component that composes the 3D model contains the above-mentioned various specification information, and this specification information can be changed, modified, or added, and a history of changes or additions can be recorded. is there.

The "BIM model" includes a BIM design model created by the architect in charge of designing the building on the design user terminal 10A, a BIM calculation model created by the architect in charge of structural design on the structural user terminal 10B, and a BIM. A BIM structural model and the like created based on a calculation model are included.

At the planning stage, by looking at the three-dimensional modeled image of the building (BIM design model), it is possible to directly imagine the appearance, layout design, etc. of the building. In addition, at the facility design stage, the comfort of the living space is considered by simulating the heat flow (flow of wind, airflow, 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 construction planning stage, it is possible to check for interference with equipment, steel frames, pipes, etc. by checking the 3D image, and it is possible to clarify the state that is difficult to see in the 2D drawing in detail. Can be grasped.

In this way, by sharing the BIM model, the building can be detailed from the initial planning stage and design stage of the building to the actual construction stage and the maintenance stage after construction. It will be possible to grasp clearly over the course and take optimal measures functionally and efficiently each time.

The shared server 20 stores specification information on various components required for designing and constructing 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, in structural design, the person in charge of structural design may access the shared server 20 to obtain specification information of various components, or download the specification information of various components to the structural user terminal 10B or the like in advance. , Used for structural design.

[Component comparison device of different BIM models according to the embodiment]
Next, an example of a component comparison device of a different BIM model according to the embodiment will be described with reference to FIGS. 2 and 4, and an example of a shared server will be described with reference to FIG. 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. Further, 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 the personal computer has a component comparison device 60 (component comparison device of a different BIM model) and a communication device 66. The component comparison device 60 includes a CPU (Central Processing Unit) 61, an NVRAM (Non-Volatile RAM) 62, a RAM (Random Access Memory) 63, a ROM (Read Only Memory) 64, an HDD (Hard Disc Drive) 65, and the like. Each part is connected so that data can be transmitted and received via a bus.

The ROM 64 stores various programs and data used by the programs. The RAM 63 is used as a storage area for loading a program and a work area of the loaded program. The CPU 61 realizes various functions by processing the program loaded in the RAM 63. The HDD 65 stores a program and various data used by the program. Various setting information and the like are stored in the NVRAM 62. Although not shown, the design user terminal 10A, the equipment user terminal 10C, and the like also have the same hardware configuration as the component comparison device 60.

The communication device 66 is a device that communicates with the shared server 20, functions as a receiving unit that receives various data and signals transmitted from the shared server 20, and also receives a command from the CPU 61 from the component comparison device 60. It functions as a transmission unit that transmits various data and signals to the shared server 20.

Further, as shown in FIG. 3, the shared server 20 formed by a workstation or a personal computer has a CPU 21, an NVRAM 22, a RAM 23, a ROM 24, an HDD 25, a communication device 26, and the like, and each part transmits data via a bus. It is connected so that it can be sent and received. The communication device 26 is a device that communicates with the user terminal 10 and the like, functions as a receiving unit that receives various data and signals transmitted from the user terminal 10 and the like, and also receives various data and signals in response to a command from the CPU 21. It functions as a transmission unit that transmits to the user terminal 10 or the like.

Next, the functions 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 a diagram showing an example of a non-BIM model, a diagram showing an example of a three-dimensional drawing of a BIM calculation model, a diagram showing an example of a three-dimensional drawing of a BIM structure model, and a BIM structure model. It is a figure which shows an example of the plan view of. Further, FIG. 9 is a diagram showing a state in which an example of a plan view of the BIM structure model is displayed on the screen of the personal computer. Further, FIGS. 10 to 12 are a diagram showing 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. A diagram showing the state in which is displayed as text data, text data of specification information of each component of the BIM structure model, which is two target text data displayed side by side for each related component, and BIM. It is a figure which shows the state which the text data of the specification information of each component of a calculation model is displayed in parallel. Further, FIGS. 13 and 14 show a state in which two text data are displayed side by side for each related component on the screen of the personal computer, and the related components are displayed as a three-dimensional drawing. It is a figure which shows the state which is being done.

As shown in FIG. 4, the component comparison device 60 includes an extraction unit 71, a processing unit 72, a display unit 73, a structural 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 the components of each are different BIM models that are related to each other. The specification information of each component can be received from, for example, the shared server 20.

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 Structural Systems Co., Ltd.), which is high-performance integrated structural calculation software for RC / SRC / S buildings. Here, the RC structure indicates a reinforced concrete structure, the SRC structure indicates a steel-framed reinforced concrete structure, and the S structure 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 various components constituting the calculation model, and performs the structural calculation. To execute. Since the calculation model created in the calculation software in this way is not a BIM model, it is a non-BIM calculation model. FIG. 5 shows an example of a non-BIM calculation model three-dimensionally.

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 general incorporated association building SMART Japan) and the like that connect the structural calculation software and the BIM software.

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

FIG. 6 shows a three-dimensional example of the BIM calculation model created by starting the BIM software by converting the non-BIM calculation model shown in FIG. 5 via the conversion unit 75.

Although the BIM calculation model is included in the BIM model, it is the model that is the basis of the structural calculation to the last, and this BIM calculation model contains information on the components such as beams and columns required for the structural calculation. However, it basically does not include information on components unnecessary for structural calculation such as sleeve walls and stairs.

The person in charge of structural design added various components that were not necessary for structural calculation to the BIM calculation model in the machining section 72 for the BIM calculation model that cleared the predetermined structural safety by structural calculation. By doing so, a BIM structural model will be created. In this processing, the person in charge of structural design creates a BIM structural model via an input unit 76 such as a keyboard, a mouse, and a touch panel. Both the BIM calculation model and the BIM structure model are included in the BIM model. FIG. 7 shows a three-dimensional example of the BIM structure model in which an external evacuation staircase, which was unnecessary in the structural calculation, is added to the BIM calculation model shown in FIG.

The BIM structural model includes structural members such as beams and columns required for structural calculation in the building to be designed, as well as non-structural members such as stairs, walls, ceilings, floors, doors, windows, and various pipes. This is the model that is the basis of the structural drawing, which is a type of confirmation application document to be submitted to the confirmation application organization. For example, BIM software can be used to create two-dimensional structural drawings such as floor plans and elevations of each floor in addition to the three-dimensional BIM structural model shown in FIG. 7. FIG. 8 shows a 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 by a liquid crystal display (LCD: Liquid Crystal Display) or the like. FIG. 9 shows an example of a plan view of the BIM structure model displayed on the display unit 73. 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 can be used as a text file, for example, Excel (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 into Excel as text data. 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 into Excel as text data. 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, all data related to other structural members such as S girders and RC main beams are also text data. Is extracted to Excel as.

Here, the component comparison device 60 displays and displays the related components of each BIM model side by side as extracted text data for different BIM models formed by a plurality of components including the specification information, and is related to the different BIM models. It is a device that identifies the match / mismatch of the components. As described above, for example, the structural designer is between a BIM calculation model based on the calculation model on which the structural calculation is based and a BIM structure model created by processing this BIM calculation model. This is done because there is a possibility that some specification information (dimensions, arrangement position, etc.) of the constituent elements has been changed and the consistency has not been obtained. The BIM calculation model reflects the calculation model that is the basis of the structural calculation, while the BIM structural model is reflected in the structural drawing. Therefore, if the model that is the basis of the structural calculation and the structural drawing do not match, a confirmation application is submitted. No permission will be given.

In addition, when the confirmation application documents are submitted to the confirmation application organization, corrections are often requested after the documents are checked by the confirmation application organization, and the person in charge of structural design is asked to use the BIM structural model. It will be reviewed. At that time, since the specification information of the components constituting the BIM structural model can be changed, if the changed component is a component necessary for the structural calculation, it is necessary to redo the structural calculation. Then, a BIM calculation model based on the calculation model that is the basis of the structural calculation again is created, and the structural drawing is created again using the BIM structural model based on this BIM calculation model.

In this way, even among a plurality of BIM calculation models (calculation data) having different timings of structural calculation, each component of a different BIM calculation model (different BIM model) can be clearly identified in order to clearly identify the changed component. It is necessary to identify the match / mismatch of. Furthermore, even among a plurality of BIM structural models (structural drawings) created at different times, matching of each component of a different BIM structural model (different BIM model) in order to clearly identify the changed component. -It is necessary to identify the discrepancy.

As described above, the different BIM models to be compared by the component comparison device 60 include (1) two BIM calculation models with different timings of structural calculation, (2) BIM calculation model, and based on this BIM calculation model. The created BIM structural model that is the basis of the structural drawing, (3) two BIM structural models that are 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 the components of the BIM calculation model and the BIM structure model that are related to each other shown in FIGS. 10 and 11. Then, as shown in FIG. 13, the related components are selected and arranged based on the related IDs and displayed as a list.

In FIG. 13, it is shown that the components of the BIM calculation model with ID: 4172166 are modified so that the dimensions of the components of the BIM structure model are increased. In FIG. 13, "O" in the vertical column indicates the spine of the H-section steel, "R" indicates the flange thickness of the H-section steel, and the H-section steel used in the BIM calculation model is 582 ×. It is 300 × 12 × 17, indicating that the H-beam used in the BIM structural model is 588 × 300 × 12 × 20.

As shown in FIG. 13, when the related components do not match in the display unit 73, the structural designer can easily identify the components that do not match each other by displaying an alarm on the screen. can do.

Further, as shown in FIG. 14, the display unit 73 can display related components on the drawing. In FIG. 14, the dotless component shows the component of the BIM calculation model, and the dense dot component is the component of the BIM structure model, and the specification information is different from the dotless component. It shows that it is. On the other hand, the components of the low-density dots indicate the components of the BIM calculation model and the BIM structure model that match each other. In this way, it is also possible to confirm the match / mismatch of the related components from the drawing.

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

[Method of comparing components of different BIM models according to the embodiment]
Next, with reference to FIG. 15, an example of a component comparison method of different BIM models according to the embodiment will be described. Here, FIG. 15 is a flowchart 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 storage step is executed in which each component stores different BIM models that are related to each other (step S10).

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

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

As already described with reference to 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 of displaying the text data of each extracted BIM model side by side for each related component is executed (step S30).

As already described with reference to FIG. 4 and the like, in the display unit 73, each related component of the different BIM model is selected and arranged based on the related ID, and is 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, but when a program including this series of processing flows is installed in the computer, the component comparison device 60 It may be formed.

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

FIG. 16 shows, in order from the top, the confirmation application organization, the structural calculation work by the structural design staff, and the structural drawing creation work by the structural design staff. First, the structural calculation is started at the date and time t0, and the calculation data A based on the calculation model is created at the date and time 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 components that were not necessary for structural calculation to the BIM calculation model, and the dimensions of some of the components that were required for structural calculation. A BIM structural model is created at the date and time t2 by reviewing the arrangement and the like, and a structural drawing A based on this BIM structural model is created.

In creating the structural drawing A, the specification information was changed for some of the components required for structural calculation between the BIM structural model and the original BIM calculation model, so the structural calculation work corresponded to the BIM structural model. The BIM calculation model is created again, the structural design is executed again using the calculation model based on this BIM calculation model, and the calculation data B is created at the date and time t3. By converting the data of this calculation model, a modified BIM calculation model is created.

In the structural drawing creation work, the modified BIM structural model is created at the date and time t4 by reviewing the arrangement of some of the components of the modified BIM calculation model again, and the modified BIM is created. A structural drawing B based on the structural model is created.

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 gives correction instructions such as requesting some deficiencies or some design changes in the documents at date and time t5.

The person in charge of structural design who receives the modification instruction modifies the structural model again in the structural calculation work, and creates calculation data C based on the modified structural model at the date and time t6. By converting the data of this modified calculation model, a modified BIM calculation model is created.

In the structural drawing creation work, various components that were not necessary for structural calculation are added to the modified BIM calculation model, and some dimensions and arrangements of the components required for structural calculation are reviewed. By doing so, a BIM structural model is created at the date and time 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 for some of the components required for structural calculation between the BIM structural model and the BIM calculation model when the confirmation application was submitted. Therefore, in the structural calculation work, the BIM structural model The BIM calculation model corresponding to the above is created again, the structural design is executed again using the calculation model based on this BIM calculation model, and the calculation data D is created at the date and time t8. By converting the data of this calculation model, a modified BIM calculation model is created again.

In the structural drawing creation work, the BIM structural model modified again is created at the date and time t9 by reviewing the arrangement of some of the components for the modified BIM calculation model again, and this is modified again. A structural drawing D based on the created BIM structural model is created.

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 defects in the documents or the need for redesign changes at the date and time t10, and permits the confirmation application.

In the series of flow from the first structural calculation to the approval of the confirmation application, the consistency X1 between the calculated data B and the structural drawing B and the consistency X2 between the calculated data D and the structural drawing D The BIM model sharing system 50 according to the embodiment is applied when confirming. By applying the BIM model sharing system 50, the consistency check between the calculated data and the structural drawing can be efficiently performed both on the side of the structural designer and also on the side of the confirmation application organization. Can be done.

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

It should be noted that the configuration or the like described in the above embodiment may be another embodiment in which other components are combined, and the present invention is not limited to the configuration shown here. This point can be changed without departing from the spirit of the present invention, and can be appropriately determined according to the application form thereof.

10: User terminal, 10A: Design user terminal, 10B: Structural user terminal, 10C: Equipment user terminal, 20: Shared server, 26: Communication device, 30: External engine terminal, 30A: Confirmation application organization terminal, 40: Network, 50: BIM model sharing system, 60: component comparison device (component comparison device of different BIM model), 66: communication device, 71: extraction unit, 72: processing unit, 73: display unit, 74: structural calculation unit, 75: Conversion unit, 76: Input unit, 77: Storage unit

Claims (10)

With respect to a BIM model formed by a plurality of components including specification information, a storage unit in which each component stores different BIM models related to each other, and a storage unit.
An extraction unit that extracts the specification information of each component of each BIM model as text data,
A component comparison device for different BIM models, which comprises a display unit that displays the text data of each of the extracted BIM models side by side for each related component. The component comparison device for a different BIM model according to claim 1, further comprising a processing unit for creating or modifying the BIM model. The component comparison device for different BIM models according to claim 1 or 2, wherein the different BIM models are two BIM calculation models having different timings of structural calculation. The different BIM model according to claim 1 or 2, wherein the different BIM model is a BIM calculation model and a BIM structure model based on the BIM calculation model, which is a source of a structural drawing. Component comparison device. The BIM model is a BIM structural model that is the basis of a structural drawing created based on a BIM calculation model.
The component comparison device for different BIM models according to claim 1 or 2, wherein the different BIM models are two BIM structural models with different creation times. The component of a different BIM model according to any one of claims 1 to 5, characterized in that an alarm is displayed when related components displayed side by side have different specification information in the display unit. Comparison device. A structural calculation unit that performs structural calculations using a non-BIM calculation model,
The component comparison device for a different BIM model according to any one of claims 1 to 6, further comprising a conversion unit that converts the non-BIM calculation model into the BIM model. A structural user terminal provided with a component comparison device and a communication device of different BIM models according to any one of claims 1 to 7 and used by a structural design user.
A user terminal including at least a BIM model processing device including a processing unit for creating or modifying a BIM model, a communication device, and a design user terminal used by a design design user.
A BIM model sharing system comprising a shared server in which the BIM model is transmitted and stored from the communication device via a network. With respect to a BIM model formed by a plurality of components including specification information, a storage process in which each component stores different BIM models related to each other, and a storage process.
An extraction process for extracting the specification information of each component of each BIM model as text data, and
A method for comparing components of different BIM models, which comprises a display step of displaying the text data of each of the extracted BIM models side by side for each related component. With respect to a BIM model formed by a plurality of components including specification information, a storage process in which each component stores different BIM models related to each other, and a storage process.
An extraction process for extracting the specification information of each component of each BIM model as text data, and
A component comparison program for different BIM models, which comprises causing a computer to execute a display step of displaying the text data of each of the extracted BIM models side by side for each related component.