JP2024078887A - Data correction device and program - Google Patents

Abstract

To provide a data correction device and a program that can efficiently create a BIM structural model consisting of a BIM object that has correct object information for a building included in system building.SOLUTION: Both of a non-BIM object and pre-correction object have mutually-relevant design signs. The pre-correction object has pre-correction object information data including a material and dimension. A data correction device 10 includes a storage unit 27, a display unit 24, and a conversion unit 25. The storage unit 27 stores post-correction object information data related to a post-correction object related to the design sign. The display unit 24 displays a screen for selecting the pre-correction object being the correction object from among the plurality of pre-correction objects. The conversion unit 25 converts the pre-correction object by extracting the post-correction object having the design sign related to the selected pre-correction object from the post-correction object information data.SELECTED DRAWING: Figure 2

Description

The present invention relates to a data correction device and a program.

In architectural design, the layout of the building (architecture) is decided while taking into consideration the site conditions and the surrounding environment, and the design of the interior and exterior, floor plan, decoration, etc. is carried out first. In this design, 2D drawings as well as 3D drawings including perspective drawings are created using the commonly used CAD (Computer-Aided Design). Structural design is then carried out after the design, in which the foundation and framework are set and the specifications, shape, and layout of the columns, beams, walls, etc. are set so that the building designed based on this design meets safety performance against snowfall and earthquakes. Furthermore, after this structural design, production design is carried out, in which a production model is created in which each component that will actually be used and produced in the factory is reflected in the model.

Recently, in the design of the above-mentioned buildings, BIM (Building Information Modeling) models are used to share information about buildings among designers and engineers. Here, a BIM model is a three-dimensional model that contains information about the shape in a virtual three-dimensional space of the components that make up a building (also called objects, including beams, columns, walls, etc.), as well as information about the materials, dimensions, placement positions, etc. (collectively referred to as "specification information"). Using this BIM model, it is possible to create three-dimensional drawings of the three-dimensional model viewed from various angles, as well as to cut the three-dimensional drawings in various ways and create two-dimensional drawings such as floor plans (including floor plans) and elevations (including frame drawings) viewed from various angles. In other words, each component that makes up a three-dimensional model contains various specification information, which can be changed, modified, or added to, and a history of changes, additions, etc. can also be kept.

Incidentally, among the buildings to be designed, buildings in which the construction of the framework, roof, exterior walls, etc. is standardized, and the production process of the components is systemized, are generally referred to as "system buildings." For example, factories, logistics warehouses, and retail stores such as drugstores and convenience stores are given as examples of system buildings.

Here, Patent Document 1 proposes an information management system using the above-mentioned BIM. Specifically, it is an information management system having an information processing terminal used by a user and a server device communicably connected to the information processing terminal via a network. This server device is equipped with a storage unit that stores shape information and specification information of an object in association with the object, stores work information that associates the object with a work item related to it, and resource information that associates the work item with a resource item related to it, a control unit that acquires information requested by a user using the information processing terminal based on the shape information, specification information, work information, and resource information, and a communication unit that transmits the acquired information requested by the user to the information processing terminal that is the request source. In addition, the information processing terminal is equipped with a display unit that displays a predetermined screen to the user using the information processing terminal based on the information requested by the user using the information processing terminal received from the server device via the network.

JP 2013-164681 A

According to the information management system described in Patent Document 1, information about buildings can be appropriately managed, and users can easily obtain the information they need. Meanwhile, when designing the above-mentioned system architecture, the design engineer creates a BIM design model by setting the floor and height dimensions of the building on a user terminal, arranging multiple exterior materials around the building's perimeter, and placing a folded-plate roof on the roof. This BIM design model makes it possible to directly imagine the exterior of the building.

Next, the structural designer imports the BIM design model into, for example, high-performance integrated structural calculation software on a user terminal, creates a calculation model in the calculation software, inputs the specification information of the various components that make up the calculation model, and then performs structural calculations. The calculation model created in this way in the calculation software on the structural designer's user terminal is a non-BIM calculation model because it is not a BIM model, and this non-BIM calculation model is composed of multiple non-BIM objects.

The structural design engineer's user terminal has data linking software that connects the structural calculation software and the BIM software installed, and also has the BIM software installed. By starting this software, the non-BIM calculation model is converted into a BIM structural model.

Each of the non-BIM objects that make up the non-BIM calculation model described above and the BIM objects that make up the data-converted BIM structural model all have mutually related design codes, and the cross-sectional information and specification information of the steel materials linked to the non-BIM objects are similarly linked to the associated BIM objects.

However, it is difficult to say that the various information linked to conventional non-BIM objects necessarily reflects the various components of the system architecture building that will actually be constructed, and the BIM structural model that roughly reflects the system architecture building of this actual construction does not reflect the BIM objects that should be included. For example, with regard to the beam model in the non-BIM object, only H-shaped steel is set as the steel material type, and even if a channel steel or the like is to be used as an exterior beam, the H-shaped steel linked to the BIM object is applied, so it is not the correct BIM object.

Therefore, since a BIM structural model formed by data conversion of a non-BIM calculation model does not have the correct BIM objects, structural designers currently carry out correction work to make each BIM object that makes up the BIM structural model formed based on the non-BIM calculation model into a correct BIM object. Since a BIM structural model consists of a large number of BIM objects, this correction work requires a lot of time and effort, and therefore it is not possible to efficiently create (design) a BIM structural model that has the correct BIM objects.

The present invention has been made in consideration of the above-mentioned problems, and aims to provide a data correction device and program that can efficiently create a BIM structural model composed of BIM objects with correct object information when creating a BIM structural model by data conversion of a non-BIM calculation model of a building included in a system building.

In order to achieve the above object, one aspect of the data correction device according to the present invention comprises:
A data correction device that corrects a pre-modification BIM structural model that is created by performing structural calculation on a BIM design model of a building included in a system building and is composed of a plurality of non-BIM objects, the non-BIM calculation model being converted and composed of a plurality of pre-modification objects, and creates a modified BIM structural model composed of a plurality of post-modification objects,
The non-BIM object and the pre-modified object both have a design code related to each other, and the pre-modified object further comprises pre-modified object information data including materials and dimensions;
A storage unit, a display unit, and a conversion unit,
The storage unit stores modified object information data regarding the modified object associated with each of the design codes,
the display unit displays a screen for selecting a pre-correction object to be corrected from among the plurality of pre-correction objects;
The conversion unit is characterized in that it extracts the modified object, which has the design code related to the selected pre-modification object, from the modified object information data, and converts the pre-modification object.

According to this aspect, when designing a building included in a system architecture, modified object information data relating to modified objects having a common design code with a pre-modification object is stored in a storage unit, a screen is displayed on a display unit for selecting a pre-modification object to be modified from among a plurality of pre-modification objects, and modified objects having a design code related to the selected pre-modification object are extracted from the modified object information data, and the pre-modification object is converted, thereby making it possible to efficiently create a modified BIM structural model composed of modified objects having correct object information.

The non-BIM object, the pre-modification object, and the post-modification object have design codes that relate to each other, so that the relationship between the objects is maintained through the design codes. The data modification device of this embodiment may be, for example, a user terminal of a structural designer, or may be a user terminal different from the user terminal of the structural designer.

On the user terminal of the structural design engineer, high-performance integrated structural calculation software, BIM software, and data linkage software that connects these are installed. After importing the BIM design model into the high-performance integrated structural calculation software and creating a non-BIM calculation model, each non-BIM object that makes up the non-BIM calculation model is converted into a pre-modified object by the data linkage software, and a pre-modified BIM structural model is created. Although the pre-modified objects that make up this pre-modified BIM structural model are BIM objects, at least some of them do not reflect the BIM objects that should originally be included in a BIM structural model that roughly reflects the system architectural building of the actual construction.

When the structural design engineer's user terminal is a data correction device of this type, the user terminal corrects the data of at least a portion of the pre-correction object, converts it into a corrected object that should originally be included in the BIM structural model that roughly reflects the system-built building being constructed, and creates a corrected BIM structural model.

On the other hand, if the data correction device of this embodiment is not the structural designer's user terminal, the pre-correction BIM structural model created on the structural designer's user terminal and composed of pre-correction objects is imported into the data correction device of this embodiment, and the pre-correction objects are then data-corrected to convert them into post-correction objects that should originally be included in the BIM structural model that roughly reflects the system-built building being constructed, thereby creating a post-correction BIM structural model. In any of the above forms, the data correction device of this embodiment can efficiently create a post-correction BIM structural model composed of post-correction objects.

In another aspect of the data correction device according to the present invention,
In the display unit, the pre-modification BIM structural model is displayed, and after the pre-modification object to be modified is selected, when the entire pre-modification BIM structural model is provisionally set as a modification target, only the pre-modification objects to be modified are extracted,
Next, the conversion unit converts each of the extracted pre-correction objects into the post-correction object.

According to this aspect, the pre-modification BIM structural model is displayed on the screen, and after the pre-modification objects to be modified are selected, only the pre-modification objects to be modified are automatically extracted when the entire pre-modification BIM structural model is provisionally set as the modification target, and then each of the extracted pre-modification objects is automatically converted into a modified object, thereby making it possible to efficiently create a modified BIM structural model composed of modified objects with correct object information.

Another aspect of the data correction device according to the present invention is
Further comprising a placement unit,
The placement unit is characterized in that it places a vertical brace included in the object by aligning both ends of the vertical brace with an object core in a perimeter model composed of exterior columns and exterior beams included in the object.

According to this aspect, the placement unit aligns and places both ends of the vertical brace included in the object with respect to the object core in the perimeter model composed of the exterior columns and exterior beams included in the object, which is preferable because it allows the vertical brace to be correctly attracted to the core of the object (object core) such as the exterior beam.

Moreover, one aspect of the program according to the present invention is
A program for causing a computer to execute a data correction process to correct a pre-modification BIM structural model composed of a plurality of pre-modification objects into which a non-BIM calculation model is converted, the pre-modification BIM structural model being created by performing structural calculation on a BIM design model of a building included in a system building and composed of a plurality of non-BIM objects, and to create a modified BIM structural model composed of a plurality of post-modification objects,
The non-BIM object and the pre-modified object both have a design code related to each other, and the pre-modified object further comprises pre-modified object information data including materials and dimensions;
storing modified object information data for the modified objects associated with each of the design matches;
displaying a screen for selecting the pre-correction object to be corrected from among the plurality of pre-correction objects;
The modified object, which has the design code related to the selected pre-modification object, is extracted from the post-modification object information data, and the pre-modification object is converted.

According to this aspect, when designing a building included in a system architecture, a program installed or downloaded to a personal computer or the like stores modified object information data related to modified objects that have a common design code with a pre-modification object, displays a screen for selecting the pre-modification object to be modified from among a plurality of pre-modification objects, extracts modified objects that have a design code related to the selected pre-modification object from the modified object information data, and converts the pre-modification object, thereby efficiently creating a modified BIM structural model composed of modified objects with correct object information.

As can be understood from the above explanation, the data correction device and program of the present invention can efficiently create a BIM structural model composed of BIM objects with correct object information when converting data from a non-BIM calculation model to create a BIM structural model.

FIG. 2 is a diagram illustrating an example of a hardware configuration of a data modification device according to an embodiment. FIG. 2 is a diagram illustrating an example of a functional configuration of a data modifying device according to an embodiment. FIG. 13 is a diagram showing a display example on a display screen of the data correction device. FIG. 13 is a diagram showing a display example on a display screen of the data correction device. FIG. 13 is a diagram showing a display example on a display screen of the data correction device. FIG. 4 is an enlarged view of a portion VI in FIG. 3 showing an example of a display on a display screen of the data correction device. FIG. 13 is a diagram showing a display example on a display screen of the data correction device. FIG. 13 is a diagram showing a display example on a display screen of the data correction device. FIG. 13 is a diagram showing a display example on a display screen of the data correction device. FIG. 13 is a diagram showing a display example on a display screen of the data correction device. FIG. 13 is a diagram showing a display example on a display screen of the data correction device. FIG. 13 is a diagram showing a display example on a display screen of the data correction device. FIG. 13 is a diagram showing a display example on a display screen of the data correction device. FIG. 13 is a diagram showing a display example on a display screen of the data correction device.

Below, an example of a data correction device according to an embodiment will be described with reference to the attached drawings. Note that in this specification and the drawings, substantially identical components may be designated by the same reference numerals to avoid redundant description.

[Data correction device according to the embodiment]
An example of a design user terminal according to the embodiment will be described with reference to Fig. 1 to Fig. 13. Here, Fig. 1 is a diagram showing an example of a hardware configuration of a data modification device according to the embodiment, Fig. 2 is a diagram showing an example of a functional configuration of the data modification device, and Figs. 3 to 13 are diagrams showing examples of displays on a display screen of the data modification device.

The data correction device 10 is a user terminal used by structural designers, and is a user terminal that allows structural designers to design and create BIM structural models of buildings included in system architecture.

Although not shown in the figure, other design user terminals include design user terminals used by architectural designers, and design user terminals used by production designers who create BIM production models in which each component produced in a factory is reflected in the model. In addition, there are various other user terminals, such as cost estimation user terminals, construction planning user terminals, and construction execution user terminals (none of which are shown in the figure).

A design support system may be constructed in which such various design user terminals (user terminals) are connected to a shared server via a network, and BIM models (BIM design model, BIM structural model, BIM production model, etc.) created on each design user terminal are transmitted to and stored in the shared server each time, and user terminals that have been granted access rights can access the shared server. This design support system includes a form having a closed network in which information is shared only within a company such as a single house manufacturer, as well as a form having an open network that allows information sharing with external organizations (such as material and equipment suppliers owned by material and equipment suppliers who work together at the production design, facility design, construction planning, etc. stages). In addition to storing data, the shared server may also be a cloud server that allows multiple users to share various application software.

The data correction device 10 according to the embodiment is a user terminal that performs structural calculations on a BIM design model for a system architecture building created by an architect to create a non-BIM calculation model, which is a calculation model, and converts the non-BIM calculation model into a BIM structural model. Since the BIM structural model (pre-correction BIM structural model) in which the non-BIM calculation model is data-converted does not necessarily reflect each component of the system architecture building that is actually constructed, each BIM object (pre-correction object) constituting the pre-correction BIM structural model formed based on the non-BIM calculation model is corrected to a correct BIM object (corrected object) using the data correction device 10. In other words, the data correction device 10 is a device that creates (designs) a BIM structural model (corrected BIM structural model) by performing structural calculations and correcting data.

Here, buildings included in system architecture include logistics warehouses, retail stores such as drugstores and convenience stores, etc.

As shown in FIG. 1, the data correction device 10 is an information processing device such as a personal computer (PC), a workstation (WS), or a tablet, all of which are composed of a computer.

The computer constituting the data correction device 10 includes a CPU (Central Processing Unit) 11, a main memory device 12, an auxiliary memory device 13, a communication IF (interface) 14, and an input/output IF 15, all of which are interconnected by a connection bus 16. The main memory device 12 and the auxiliary memory device 13 are computer-readable recording media. Note that each of the above components may be provided separately, or some of the components may not be provided.

The CPU 11 is also called an MPU (Microprocessor) or a processor, and may be a single processor or a multiprocessor. The CPU 11 is a central processing unit that performs overall control of the data correction device 10, which is made up of a computer. The CPU 11 provides functions that meet a specific purpose, for example by expanding a program stored in the auxiliary storage device 13 in an executable manner in the working area of the main storage device 12, and controlling peripheral devices through the execution of the program.

The main storage device 12 stores computer programs executed by the CPU 11 and data processed by the CPU 11. The main storage device 12 includes, for example, a flash memory, a RAM (Random Access Memory), and a ROM (Read Only Memory). The auxiliary storage device 13 stores various programs and various data on a recording medium in a readable and writable manner, and is also called an external storage device. The auxiliary storage device 13 stores, for example, an OS (Operating System), various programs, various tables, and the like. The OS includes, for example, a communication interface program that transfers data with external devices connected via the communication IF 14. The external devices include, for example, information processing devices such as personal computers (PCs), workstations (WSs), servers, and mobile terminals connected to a network, and external storage devices.

The auxiliary storage device 13 is used, for example, as a storage area that supports the main storage device 12, and stores computer programs executed by the CPU 11 and data processed by the CPU 11. The auxiliary storage device 13 is a silicon disk including a non-volatile semiconductor memory (flash memory, EPROM (Erasable Programmable ROM)), a hard disk drive (HDD: Hard Disk Drive) device, a solid state drive device, etc. Examples of the auxiliary storage device 13 include drives for removable recording media such as CD drives, DVD drives, and BD drives. Examples of removable recording media include CDs, DVDs, BDs, USB (Universal Serial Bus) memories, and SD (Secure Digital) memory cards.

The communication IF 14 is an interface with the network to which the data correction device 10 and the like are connected. The communication IF 14 is connected to a shared server via the network, and downloads various application software used during structural design, and receives the BIM design model created by the architect during structural design.

The input/output IF 15 is an interface that inputs and outputs data between devices connected to the data correction device 10. Input devices such as a keyboard, a touch panel, a mouse, or other pointing device, and a microphone are connected to the input/output IF 15. The data correction device 10 receives operation instructions, etc., from an operator who operates an input device via the input/output IF 15.

The input/output IF 15 is also connected to display devices such as a liquid crystal display (LCD) panel or an organic electroluminescence (EL) panel, and output devices such as a printer and a speaker. The data correction device 10 outputs, via the input/output IF 15, data and information processed by the CPU 11, and data and information stored in the main memory device 12 and the auxiliary memory device 13.

2, the data correction device 10 provides various functions, such as at least an acquisition unit 21, a structural calculation unit 22, a drawing unit 23, a display unit 24, a conversion unit 25, a placement unit 26, and a storage unit 27, by executing a program by the CPU 11. At least some of the above processing functions may be provided by a DSP (Digital Signal Processor), a GPU (Graphics Processing Unit), etc. Similarly, at least some of the above processing functions may be provided by a dedicated LSI (large scale integration) such as an FPGA (Field-Programmable Gate Array), a numerical calculation processor, an image processing processor, or other digital circuits, etc.

The acquisition unit 21 acquires the BIM design model and stores it in the memory unit 27, and also receives application software stored in the shared server. Furthermore, the acquisition unit 21 transmits the BIM structural model (modified BIM structural model) created by the structural design engineer to the shared server.

The memory unit 27 is installed with high-performance integrated structural calculation software for RC/SRC/S-construction buildings, such as Super Build (registered trademark)/SS7 (manufactured by Union System Co., Ltd.) and BUS-6 (manufactured by Structural Systems Co., Ltd.). Here, RC construction refers to reinforced concrete construction, SRC construction refers to steel-reinforced concrete construction, and S construction refers to steel-frame construction.

The memory unit 27 also has installed therein ST-Bridge (manufactured by Building SMART Japan, a general incorporated association), which is data linking software that connects structural calculation software and BIM software, and also has installed therein Autodesk Revit (registered trademark) (manufactured by Autodesk) as BIM software.

The structural calculation unit 22 launches the structural calculation software stored in the memory unit 27, imports the BIM design model stored in the memory unit 27 into the structural calculation software, executes structural calculations, and creates a non-BIM calculation model that is composed of multiple non-BIM objects and meets a specified structural safety standard.

The conversion unit 25 converts the non-BIM calculation model created by the structural calculation unit 22 into an unmodified BIM structural model composed of multiple unmodified objects by activating the collaborative software stored in the memory unit 27.

The drawing unit 23 draws the unmodified BIM structural model and displays it on the display screen 24 that constitutes the display unit 24.

Here, FIG. 3 shows an unmodified BIM structural model 40 of a system-architected building displayed on the display screen 24. Specifically, various add-in tools are displayed on the display screen 24, and when the "system-architected add-in tool 31" is selected from among them, the add-in tool 31 displays a multiple selection menu for drawing a BIM structural model of a system-architected building.

In the pre-modification BIM structural model 40 displayed on the display screen 24, the tops of adjacent exterior columns 41 spaced apart are connected by short exterior beams 42. In other words, the exterior beams 42 are installed within the thickness of the exterior columns 41 and are not positioned outside the exterior columns 41 (either on the indoor or outdoor side), making it possible to minimize the thickness of the exterior walls that make up the system building.

The outer perimeter model 44 is created from multiple exterior columns 41, exterior beams 42 that connect the upper parts of each exterior column 41, and cross-shaped vertical braces 43 that further connect each exterior column 41 together.

Inside the outer perimeter model 44, a predetermined number of center columns 45 are arranged, and a plurality of (four in the illustrated example) girders 46 extending in the X direction supported by a pair of opposing outer columns 41 and the center columns 45 between them, small beams 47 extending in the Y direction connecting the girders 46 to each other and the upper parts of the outer columns 41, and tie beams 48 connecting the small beams 47 to each other and the upper parts of the outer columns 41 are further arranged to form a pre-modification BIM structural model 40. Each BIM object that constitutes the pre-modification BIM structural model 40 is a pre-modification object.

Each pre-modification object has its own unique family, design code, and type parameters. In other words, each non-BIM object constituting the non-BIM calculation model created by structural calculation and the pre-modification objects constituting the data-converted pre-modification BIM structural model 40 all have mutually related design codes, and the cross-sectional information and specification information of the steel material linked to the non-BIM object are similarly linked to the related pre-modification object.

As an example of pre-modification object information data, FIG. 4 shows type properties (object information) related to the gable girder of the outer beam 42 among the pre-modification objects. In the illustrated example, of the multiple families of H-shaped steel, a family called "S_G_H_3Sec" is shown as an example, and furthermore, a code "PT1" corresponding to the design code is set, and this code (or design code) is referenced when converting data from a non-BIM calculation model to a pre-modification BIM structural model.

In the type parameters, "SS400" is set as the material information, and "H-beam" is set as the structural information.

In other words, in the pre-correction object, the structural information for the girder, which is an example of an exterior beam, only contains H-shaped steel, but in actual construction, a channel steel is actually used for this girder. For this reason, in the past, structural design staff had to directly input the structural information for this girder from H-shaped steel to channel steel, which was a time-consuming and labor-intensive correction process.

Also, as shown in FIG. 5, no offset value is set for the gable beam with the code "PT1". Here, the "offset value (or offset amount)" refers to the allowance (deviation) from the placement reference line that is set in advance for each part of the object from the perspective of actual installation, etc., in the BIM production model created based on the BIM structural model (modified BIM structural model), and can be set for the gable beams and eaves beams in the illustrated example, as well as the vertical braces that span between the rafters and exterior columns. By setting the three-dimensional coordinates of both ends of the object taking this offset amount into account, a highly accurate BIM production model can be created.

As described above, since the structural information for the exterior beam 42 included in the pre-modification object does not include channel steel, in the pre-modification BIM structural model 40 shown in Figure 6, the exterior beam 42 is modeled as an H-shaped steel rather than a channel steel that will be used in the actual construction.

In addition, in the actual construction, the outer beam 42 made of channel steel is attached to the outer column 41 with a specified offset in the Y direction toward the interior side, and is attached with a specified offset vertically downward in the Z direction. However, since no offset is set as described above, the outer beam 42 is installed in the center of the width of the outer column 41, as shown in Figure 6, and its upper flange is installed so as to be flush with the upper end of the outer column 41, which does not represent a model that reflects the actual construction.

Furthermore, as shown in FIG. 6, in the pre-modification BIM structural model 40, the ends of the vertical braces 43 do not extend to the joints between the exterior columns 41 and the exterior beams 42, and therefore the ends of the vertical braces 43 are modeled apart at these joints 49.

As described above, the data correction device 10 converts a pre-correction object that does not reflect the actual work in terms of structural information, offset amount, etc., into a post-correction object that has correct object information. Note that if the structural information of the pre-correction object reflects the actual work and there is no need to set an offset amount, the pre-correction object becomes the post-correction object as is.

Here, each modified object that constitutes the modified BIM structural model is set with a code (design code), reference section, type, family, structural use, etc., which are included in the modified object information data shown as an example in Figure 7. Of these, the "reference section" is a catalog-based profile related to the object, and in the case where the object is a square steel pipe, for example, it is information indicating the height, width, and plate thickness of the structural cross-sectional geometry, such as □-150 x 100 x t (thickness).

The following describes how to convert the pre-modification object related to the outer beam 42 into a post-modification object.

By selecting "Convert outer beam" from the selection menu of the system architecture add-in tool 31 shown in Figure 3, the outer beam 42 is selected as the object to be modified.

Once you have selected the object to be modified in this way, a dialog box will appear prompting you to select a product, as shown in Figure 8.

Here, "products" are set for each structure and use, and product types include, for example, steel-framed structural frame types such as one-story or two-story buildings, structures using single beams, or structures using truss beams, while uses include logistics warehouses and retail stores. "Products" include products developed and commercialized by Daiwa House Industry Co., Ltd., such as "Frest," "Comfort," "Lead," and "Lead Free." In the illustrated example, "Lead Free," "Lead XP," and "Comfort" are displayed as examples of products.

When the structural designer selects the product that corresponds to the system-built building to be designed, a dialog box is then displayed in which the appropriate application type for each code (design code) can be selected from a selection menu, as shown in Figure 9A.

As shown in Figure 9A, this selection menu contains information about a large number of channel steel sections, allowing the structural designer to select a channel steel section of the desired cross section for each design code.

Figure 9B shows the state in which suitable channel steel to be applied to the actual construction work has been selected for each code (type) PK1, PK2, PT1, and PT2.

Furthermore, as shown in Figure 10, types PK1, PK2, PT1, and PT2 are added to the channel steel family "S_B_C."

After selecting the exterior beam 42 as the object to be modified, when the structural design engineer selects the entire pre-modification BIM structural model 40 shown in FIG. 3 as the selection target, only the exterior beam 42 to be modified is extracted as the selection target. In other words, on the display screen 24, there is no need to select the exterior beams 42 individually; by selecting the entire pre-modification BIM structural model 40, only the multiple exterior beams 42 to be modified are automatically extracted.

Figure 11 shows the type properties of type PT1 of the selected exterior beam 42 displayed on the display screen 24. The differences between the two are clear when compared to Figure 4, but the cross-sectional shape of the structure is a channel steel, and the dimension information of [-100 x 50 x 5 x 7.5 is automatically set for type PT1.

Furthermore, as shown in FIG. 12, the offset amount preset for the outer beam 42 of the channel steel "S_B_C" with reference number PT1 is automatically set. In the illustrated example, the offset amount in the Y direction is automatically set to -34 mm, and the offset amount in the Z direction is automatically set to -50 mm.

As shown in Figure 13, which corresponds to Figure 6 before modification, the conversion unit 25 modifies the steel material type from H-shaped steel to channel steel of a specified cross-sectional dimension, and creates a modified BIM structural model 50 having a modified object that takes into account the offset amount that has been preset for the gable girders, and displays it on the display screen 24.

The modified BIM structural model 50 shows exterior columns 51, exterior beams 52, and vertical braces 53, which are all modified objects, as well as the outer perimeter model 54, small beams 57, and tie beams 58 that are made up of these.

As shown in FIG. 13, the outer beam 52 is formed from a channel steel and is offset by a predetermined amount in the Y and Z directions.

Furthermore, the placement unit 26 attracts the ends of the vertical braces 53 to the object cores of the exterior columns 51 and exterior beams 52, and creates joints 59 where the ends are connected to each other. That is, a model in which the ends of the vertical braces 43 are not connected to the joints 49, such as the unmodified BIM structural model 40 shown in FIG. 6, is appropriately modified.

In this way, by applying the data correction device 10, when designing a building included in a system building, a modified BIM structural model composed of modified objects with correct object information can be efficiently created.

Note that the configurations described in the above embodiments may be combined with other components, and the present invention is not limited to the configurations shown here. In this regard, changes can be made without departing from the spirit of the present invention, and can be determined appropriately according to the application form.

10: Design user terminal 21: Acquisition unit 22: Structural calculation unit 23: Drawing unit 24: Display unit (display screen)
25: Conversion unit 26: Placement unit 27: Storage unit 31: System architecture add-in tool (add-in tool)
40: BIM structural model before modification 41: Exterior column (object before modification)
42: Outer beam (object before modification)
43: Vertical brace (object before modification)
44: Periphery model (periphery structure)
45: Center pillar 46: Main beam (object before modification)
47: Beam (object before modification)
48: Roof beam (object before modification)
z: Joint 50: Modified BIM structural model 51: Exterior column (modified object)
52: Outer beam (modified object)
53: Vertical brace (modified object)
54: Periphery model (periphery structure)
57: Small beam (modified object)
58: Roof beam (modified object)
59: Joint

Claims (4)

A data correction device that corrects a pre-modification BIM structural model that is created by performing structural calculation on a BIM design model of a building included in a system building and is composed of a plurality of non-BIM objects, the non-BIM calculation model being converted and composed of a plurality of pre-modification objects, and creates a modified BIM structural model composed of a plurality of post-modification objects,
The non-BIM object and the pre-modified object both have a design code related to each other, and the pre-modified object further comprises pre-modified object information data including materials and dimensions;
A storage unit, a display unit, and a conversion unit,
The storage unit stores modified object information data regarding the modified object associated with each of the design codes,
the display unit displays a screen for selecting a pre-correction object to be corrected from among a plurality of the pre-correction objects;
The data modification device is characterized in that the conversion unit extracts the modified object having the design code related to the selected pre-modification object from the modified object information data, and converts the pre-modification object. In the display unit, the pre-modification BIM structural model is displayed, and after the pre-modification object to be modified is selected, when the entire pre-modification BIM structural model is provisionally set as a modification target, only the pre-modification objects to be modified are extracted,
2. The data correction device according to claim 1, wherein the conversion section then converts each of the extracted pre-correction objects into the post-correction object. Further comprising a placement unit,
The data correction device according to claim 1 or 2, characterized in that the placement unit places a vertical brace included in the object by aligning both ends of the vertical brace with an object core in a perimeter model composed of exterior columns and exterior beams included in the object. A program for causing a computer to execute a data correction process to correct a pre-modification BIM structural model composed of a plurality of pre-modification objects into which a non-BIM calculation model is converted, the pre-modification BIM structural model being created by performing structural calculation on a BIM design model of a building included in a system building and composed of a plurality of non-BIM objects, and to create a modified BIM structural model composed of a plurality of post-modification objects,
The non-BIM object and the pre-modified object both have a design code related to each other, and the pre-modified object further comprises pre-modified object information data including materials and dimensions;
storing modified object information data for the modified objects associated with each of the design matches;
displaying a screen for selecting the pre-correction object to be corrected from among the plurality of pre-correction objects;
A program for converting a selected pre-modification object by extracting the pre-modification object having the design code related to the selected pre-modification object from the pre-modification object information data.

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