JP7654953B2 - Data linking method and data linking system - Google Patents

Description

The present invention relates to a data linking method and a data linking system.

Conventionally, in order to manufacture each component that makes up a building, for example, structural design information such as general building information, information about materials, and component cross-section information is stored as a file of a specific format, such as an ACCESS file, at the time of input, while information about the building shape and component placement is held as a three-dimensional CAD model at the time of input, and when linking with an external system, the information stored as CAD data is output in a batch process to a file, such as an ACCESS file, forming a database in which all structural design information is unified into a uniform format.

Japanese Patent Application Publication No. 11-25152

In the conventional method of using structural design information as described above, general information, information on materials, and information on component cross-sections on the one hand, and information on the building shape and component placement on the other, are stored as separate data in different formats, and the format of each data is unified when linking with an external system. For this reason, even if a three-dimensional CAD model is held, the various data for constructing the building cannot be synthesized into a single unified data until linking with an external system. For example, a conversion program is created from the structural body database to each commercially available construction CAD for each business, and data is linked in each commercially available construction CAD. For this reason, there is a problem that, since there is no consistency between each commercially available construction CAD, there is a risk that it is not possible to create construction drawings or manufacturing drawings for parts that are consistent overall, or to use the data as is as data for manufacturing parts.

The present invention was made in consideration of the above problems, and its purpose is to generate highly consistent model data.

In order to achieve this object, the data linking method of the present invention is characterized by having a building BIM model generation step in which a BIM processing unit executes BIM software to generate a BIM model of a building based on data input from an input unit based on user input, a model data storage step in which model data having structural design information data of components of a structure input when generating the BIM model, a construction information storage step in which a construction information data storage unit stores construction information data of the components based on user input, and a data linking step in which a data linking processing unit adds the construction information data to the model data and links the model data and the construction information data.

According to this data linking method, the computer adds the construction information data to the model data and links the model data and the construction information data, so that the model data and the construction information data can be linked in correspondence with the model. This makes it possible to generate model data with higher consistency. As a result, it is possible to reduce the labor required for drawing and part manufacturing and shorten the construction period by using the model data with higher consistency.

Furthermore, the data linking method of the present invention is characterized by having: a building BIM model generation step in which a BIM processing unit executes BIM software to generate a BIM model of a building based on data input from an input unit based on a user's input; a model data storage step in which model data of a model having structural design information data of components of a structure input when generating the BIM model; a reinforcement information storage step in which a construction information data storage unit stores reinforcement information data indicating the reinforcement state of reinforcing bars in the components based on the user's input, the reinforcement information data being stored; and a data linking step in which a data linking processing unit adds the reinforcement information data to the model data and links the model data with the reinforcement information data.

According to this data linking method, the computer adds the reinforcing bar information data to the model data and links the model data with the reinforcing bar information data, so that the data can be linked in correspondence with the model. This makes it possible to generate a model in which reinforcing bars are arranged more accurately. This makes it possible to reduce the labor required for drawing and part manufacturing by using the data of a model in which reinforcing bars are arranged more accurately.

In addition, the data linking method of the present invention includes a building BIM model generation step in which a BIM processing unit executes BIM software to generate a BIM model of a building based on data input from an input unit based on user input; a model data storage step in which model data of a model having structural design information data of components of a structure input when generating the BIM model; a PCa construction method storage step in which a construction information data storage unit stores PCa construction method information data for updating the configuration of the model for the PCa construction method based on user input; and a data linking step in which a data linking processing unit adds the PCa construction method information data to the structural design information data to link the structural design information data and the PCa construction method information data.

According to this data linking method, the computer adds PCa construction method information data to the model data and links the model data and PCa construction method information data, so that the model data can be linked in correspondence with the model. Therefore, it is possible to generate model data of a model in which each part included in the data has been updated to a configuration for PCa construction. This allows each part to be digitized in the form in which it is manufactured by PCa.

In this data linking method, the construction information data includes rebar arrangement information data that indicates the arrangement state of rebar in the component, and PCa construction method information data for updating the configuration of the model for the PCa construction method.

According to this data linking method, by linking model data, reinforcement information data, and PCa construction method information data in correspondence with a model, it is possible to clearly identify which parts of each component are manufactured using PCa and which are not, and to generate model data (linked model data) that shows a model in which rebar has been appropriately arranged for each part.

This data linking method is characterized by generating a production drawing for the unit of the part to be manufactured by PCa based on the PCa construction method information data.

According to this data linking method, in the model data (linked model data) showing a model in which the model data and the construction information data are linked, rebar is appropriately arranged in the data for the parts to be manufactured by PCa, so that manufacturing drawings can be easily and more accurately generated based on the linked model data.

In addition, in order to achieve this object, the data linkage system of the present invention is a data linkage system that links model data having structural design information data of parts that constitute a building with construction information data of the parts, and is characterized in having a BIM processing unit that executes BIM software to generate a BIM model of a building based on user input and data input from an input unit, a model data storage unit that stores model data of the model including the structural design information data input when generating the BIM model, a construction information data storage unit of a computer separate from the BIM processing unit that stores construction information data of the parts based on user input, and a data linkage processing unit separate from the BIM processing unit that adds the construction information data of the construction information data storage unit to the model data of the model data storage unit and executes a process to link the model data and the construction information data.

According to this type of data linking system, the model data and the construction information data are linked by adding the construction information data to the model data by the data linking processing unit, and linked model data that shows a more consistent model is generated. Therefore, by using the more consistent linked model data, it is possible to reduce the labor required for drawing and part manufacturing and shorten the construction period.

The present invention makes it possible to generate highly consistent model data.

1 is an explanatory diagram showing an overview of the configuration of a data linkage system according to an embodiment of the present invention; FIG. 13 is a diagram showing reinforcement information data stored in a construction information data storage unit. FIG. 13 is a diagram for explaining reinforcement information data. FIG. 13 is a diagram showing PCa construction method information data stored in a construction information data storage unit. FIG. 13 is a diagram for explaining PCa construction method information data. FIG. 1 is a diagram showing an image of a BIM model stored in a model data storage unit. FIG. 2 is a flow chart showing the process flow of the data linkage system according to the present embodiment. FIG. 1 is a visualization of the data after the model preparation step. This is an image of a visualization of the data after the construction information preparation step. FIG. 13 is a visualization of the data after the data linking step.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In this embodiment, a structural design BIM model (hereinafter, referred to as a BIM model) is used as a model for a reinforced concrete (RC) structure. The details of the example will be described with reference to the drawings.
====BIM model overview====

First, we will provide a brief overview of the BIM model that is the basis for explaining the present invention.

A BIM (Building Information Modeling) model is a (3D) model of a building generated on a computer, and is a model of an assembly of parts that make up a building. Traditionally, 3D CAD has been used as a 3D building model, but 3D CAD often only has information about the shape. In contrast, a BIM model has structural design information data (position information of parts such as frame diagram position and plan view position, cross-sectional information of parts, etc.) for each part that makes up a building (columns, beams, etc.). Furthermore, the number of parts can be calculated for the entire model. For example, for the "beam" of a building, shape information such as length, information on the position where the beam is placed in the building, and information (attribute information) such as the name (model number) and specifications of the beam are registered in the computer. This BIM model can be used to perform technical studies such as building design.
====Embodiment===

Figure 1 is an explanatory diagram showing an overview of the configuration of the data linkage system of this embodiment.

The data linkage system 1 shown in FIG. 1 includes a BIM processing unit 10 that executes software for a BIM model 11 (hereinafter also referred to as BIM software), a model data storage unit 20 that stores data (hereinafter also referred to as model data) 12 of the BIM model 11 as a model having structural design information data 13, a construction information data storage unit 30 that stores construction information data 14 of components (columns, beams, etc.) that make up a building, and a data linkage processing unit 40 that adds the construction information data 14 to the model data 12 and executes processing to link the model data 12 and the construction information data 14.

Each of these units (BIM processing unit 10, model data storage unit 20, construction information data storage unit 30, data linkage processing unit 40) is realized by a computer or a server device. In addition, all of the data linkage system 1 in FIG. 1 may be provided on one computer, or some or each of them may be provided on separate computers and connected via a communication line or the like. For example, the BIM processing unit 10, model data storage unit 20, construction information data storage unit 30, and data linkage processing unit 40 may be provided on different computers, each installed in a separate location, and connected via a communication line or the like, and input and other operations may be performed on each computer by different users.

The BIM processing unit 10 executes the BIM software based on data input from an input unit (not shown) to generate a BIM model 11 of a building. At this time, the generated model data 12 includes data on the BIM model 11 itself and structural design information data 13 input when the BIM model was generated. The structural design information data 13 includes shape information such as dimensions of each part (columns, beams, etc.) that constitutes the building and information on reinforcing bars (reinforcing bar information) to be arranged in each part, and the structural design information data 13 can be stored in the model data storage unit 20 in Excel format or the like. The reinforcing bar information is, for example, the diameter and number of main bars, the diameter and shape of stirrups, etc., and this information is input by the user at the time of designing to generate the BIM model 11. The model data 12 having the structural design information data 13 is stored in the model data storage unit 20 based on the user's input.

The construction information data 14 is data that is linked to the model data 12, which contains rebar information associated with each component, and includes rebar arrangement information data 15, which indicates the position of rebar, and PCa (Precast Concrete) construction method information data 16, which is used to manufacture PCa components when constructing a building using the PCa method.

The reinforcement information data 15 includes multiple parameters such as the position and amount of reinforcement for the main reinforcement, as well as the type of anchorage, such as the beam 3, the length of the straight part of the anchorage (horizontal projection length), and the extra length after bending, and is defined by the user inputting the data in Excel format as shown in FIG. 2. The reinforcement information data 15 is stored in the construction information data storage unit 30 based on the user's input. The following describes the construction information data 14 for the beam 3 as an example.

For example, when reinforcing a beam 3 between a pair of adjacent columns 2 spaced apart from each other as shown in FIG. 3, the type of anchorage for the beam 3 is bent anchorage, and the length of the straight portion of the anchorage (L1) numbered "37" in FIG. 3 is input as 1120 mm as shown in FIG. 2, and the excess length after bending (L2) numbered "38" is input as 256 mm as shown in FIG. 2. The spacing between the main bars and the amount of additional concrete poured are also input, not shown. In this case, when the type of anchorage is straight anchorage, "0" is input in the excess length after bending (L2) column.

As for input methods, in addition to inputting numerical values, if the length of the straight part of the fastening (L1) and the excess length after bending (L2) are standardized, reference data that associates standard values with numbers, symbols, etc. can be compiled into a database, and the associated numbers and symbols can be input, or excess lengths that are standardized as reinforcement rules can be input in multiples of the rebar diameter, such as "15d" (d: rebar diameter). Also, if the fastening type is a mechanical joint, reference data that associates the name of the joint with numbers, symbols, etc. can be compiled into a database, and the associated numbers and symbols can be input.

The PCa construction information data 16 is, for example, information on columns 2 and beams 3 that are required when constructing the BIM model 11 using the PCa construction method.

The PCa construction information data 16 for each beam 3 includes multiple parameters for one beam 3 that spans a pair of adjacent columns 2 spaced apart from each other among multiple beams 3, such as the number of members that make up the beam 3, the type of each member, the position (length) of the members, the joint width, and the protruding length from the joint portion, and is defined by the user inputting the data in Excel format as shown in Figure 4, for example. The PCa construction information data 16 is stored in the construction information data storage unit 30 based on the user's input.

For example, the PCa construction information data 16 for a column-beam structure in which three beams 3A, 3B, and 3C are spanned between four columns 2A, 2B, 2C, and 2D as shown in FIG. 5(a) is used to explain the PCa construction information data 16 when the structure is PCa constructed with the configuration shown in FIG. 5(b). The four columns 2A, 2B, 2C, and 2D in FIG. 5(a) and FIG. 5(b) are, from the left, the first column 2A, the second column 2B, the third column 2C, and the fourth column 2D, and the three beams 3A, 3B, and 3C arranged between the first column 2A and the fourth column 2D are, from the left, the first beam 3A, the second beam 3B, and the third beam 3C. Also, the left side of each beam 3A, 3B, and 3C is the starting point, and the right side is the end.

In the PCa construction method information data 16, information defining each parameter is input by the user for each beam 3A, 3B, 3C, as shown in FIG. 4. For example, the parameters include the type of each beam section at the start, center, and end, the length of the joint at the start, center, and end, the protruding length of the rebar at each beam section at the start and end, and the division position of each beam section at the start and end.

The types of beam sections include beam sections that are not integrated with the column joints (Type A), beam sections that are integrated with the column joints (Type B), beam sections that are constructed using conventional construction methods (Type C), and cases where there is no central beam section (-), and are defined by inputting a set number. Note that for the length of the joints at the start, center, and end, the protruding length of the rebar in each beam section at the start and end, and the division positions of each beam section at the start and end, the lengths can be input as numerical values, or, if standardized, reference data that associates standard values with numbers and symbols can be compiled into a database, and the associated numbers and symbols can be input.

For example, the PCa construction method information data 16 shown in FIG. 4 defines a second beam 3B.
In the PCa construction method information data 16 shown in Fig. 4, the second beam 3B has a value "2" indicating "Type B" input as the start end PCa member type for the beam portion 3B-1 at the start end, a value "2" indicating "Type B" input as the end end PCa member type for the beam portion 3B-2 at the end end, and a value "3" indicating that there is no central beam portion input as the central PCa member type indicating the central beam portion. In addition, in the PCa construction method information data 16 of this embodiment, it is also defined that each column 2A, 2B, 2C, 2D is divided into a column main body portion 2-2 (Fig. 7) arranged between the joint portions 2A-1, 2B-1, 2C-1, 2D-1.

In addition, in the PCa construction information data 16 shown in Figure 4, the user has input information that specifies that the starting member division position (length from the second column 2B) is 2000 mm, and the end member division position (length from the third column 2C) is 2000 mm. This defines that the second beam 3B is divided into two parts, the beam section 3B-1 on the starting side and the beam section 3B-2 on the end side, each having a length of 2000 mm from the joint sections 2B-1, 2C-1.

In addition, in the PCa construction method information data 16 shown in FIG. 4, the value "0" is entered as the start joint width and end joint width, and the value "20" is entered as the center joint width. This defines that no joints are provided between the joint portion 2B-1 and the start side beam portion 3B-1, and between the end side beam portion 3B-2 and the joint portion 2C-1, and that a joint with a joint width of 20 mm is provided between the start side beam portion 3B-1 and the end side beam portion 3B-2.

The first beam 3A and the third beam 3C are also each defined by the PCa construction information data 16. The first beam 3A is defined as being divided into two parts, a beam section 3A-1 at the start end and a beam section 3A-2 at the end end, with the beam section 3A-1 at the start end being constructed using the conventional construction method and the beam section 3A-2 at the end end being defined as a beam section manufactured by PCa, integrated with the joint section 2B-1 of the second column 2B. With these definitions, the beam section 3B-1 at the start end of the second beam 3B is defined as a member manufactured by PCa, integrated with the joint section 2B-1 of the second column 2B together with the beam section 3A-2 at the end end of the first beam 3A.

The third beam 3C is defined as being divided into three parts: a beam section 3C-1 at the start end, a beam section 3C-2 at the end end, and a central beam section 3C-3 located between the beam sections 3C-1 at the start end and 3C-2 at the end end. The beam section 3C-1 at the start end is defined as a beam section that is integrated with the joint section 2C-1 of the third column 2C and manufactured using PCa, the central beam section 3C-3 is constructed using a conventional method, and the beam section 3C-3 at the end end is defined as a beam section that is integrated with the joint section 2D-1 of the fourth column 2D and manufactured using PCa. For this reason, the beam section 3C-1 at the start end of the third beam 3C is defined as a member that is integrated with the joint section 2C-1 of the third column 2c and manufactured using PCa together with the beam section 3B-2 at the end end of the second beam 3B. Additionally, beam section 3C-2 at the end of the third beam 3C is defined as a member manufactured by PCa, integrated with beam section 3D-1 at the beginning of the fourth beam 3D and joint section 2D-1 of the fourth column 2D.

The model data storage unit 20 and the construction information data storage unit 30 are configured by a storage device such as a hard disk, and also store programs (software) that execute the operations of each unit. Note that the model data storage unit 20 and the construction information data storage unit 30 may be in a form in which the areas are separated within a single storage unit.

Next, a data linking method will be described.
In the data linking method, first, a BIM model 11 of a structure to be constructed, for example, as shown in Fig. 6, is generated by a BIM processing unit 10 in the design stage by user input and operation, and model data 12 in which structural design information data 13 of each part (column 2, beam 3) is added to the BIM model 11 is stored in a model data storage unit 20 (model storage step S1) as shown in Fig. 7. In the model storage step S1, it is sufficient that the model data 12 is stored in the model data storage unit 20 by user input and operation, and it is not necessary to include a process of modeling the BIM model 11.

Next, the construction information data 14, such as the reinforcement information data 15 and the PCa construction method information data 16, is stored in the construction information data storage unit 30 by the user inputting information defining each parameter from an input means set in Excel format (construction information storage step S2). At this time, the reinforcement information data 15 may be generated by the user inputting reinforcement information into an automatic reinforcement optimization system such as existing software, Great Monster, and the reinforcement information data 15 may be stored in the construction information data storage unit 30 as the construction information data 14.

Next, based on a command signal for executing data linkage by a user's operation, the data linkage processing unit 40 executes a process of adding the construction information data 14 to the model data 12 to link them (data linkage step S3). The data linkage processing unit 40 does not necessarily need to rewrite the BIM model 11 to visualize the linked BIM model, but for ease of understanding, the state of the model data linked by the process executed by the data linkage processing unit 40 is explained here by visualizing it as shown in Figures 8 to 10.

The data linking processing unit 40 first divides the column-beam structure shown in FIG. 6 into parts, i.e., columns 2, beams 30, 31, 32, joint parts 2-1, column main body parts 2-2, etc., as shown in FIG. 8 (part division step S31). At this time, if it is necessary to divide one beam 30, 31, 32 into multiple parts based on the PCa construction method information data 16, the target beams 30, 31, 32 are divided into multiple beam parts 30-2, 31-1, 31-2, 32-1.

Next, the data linking processing unit 40, for the divided beam sections 30-2, 31-1, 31-2, and 32-1, identifies the beam sections 30-2 and 31-1, and the beam sections 31-2 and 32-1 that will be integrated into a single PCa when manufactured using PCa, based on the PCa construction method information data 16, and integrates them into each PCa member 300, 301 manufactured using PCa as shown in Figure 9 (integration step S32).

Next, the data linking processing unit 40, based on the reinforcing bar information data included in the structural design information data 13 and the reinforcement bar arrangement information data 15 included in the construction information data 14, places reinforcing bars 5 (reinforcing bar arrangement step S33) as shown in FIG. 10 to generate linked model data in which reinforcement bars are arranged for each PCa member 300, 301 and other members. At this time, reinforcement bars are arranged for each PCa member 300, 301 manufactured by PCa, the reinforcing bars 5 of adjacent members are arranged based on the fixing type, and reinforcing bars 5 are arranged by protruding from the column 2 and PCa members 300, 301 where necessary. At this time, sleeves 6 (FIG. 5(b)) that fix the reinforcing bars 5 together are also placed.

In this way, according to the data linking method and data connection system 1 of this embodiment, the reinforcement information data 15 and PCa construction method information data 16 are added to the model data 12 as construction information data 14, and the model data 12 is linked to the reinforcement information data 15 and the PCa construction method information data 16, so that the model data 12 can be linked to the reinforcement information data 15 and the PCa construction method information data 16 in correspondence with the BIM model 11.

Because of this, the BIM model 11 with linked data has accurate modeling of the reinforcement of columns 2, beams 3, etc., making it possible to generate model data for a linked BIM model with higher consistency. This makes it possible to reduce the labor required for drawing and manufacturing parts by using the model data for a linked BIM model with higher consistency.

In addition, when the data for each PCa component 300, 301 to be manufactured using PCa is extracted from the BIM model 11 with which the data is linked, the reinforcement is arranged in a state in which each PCa component 300, 301 to be manufactured will be manufactured into a finished product. Therefore, it is possible to easily generate accurate cross-sectional views and product drawings of each PCa component 300, 301 from the model data of the BIM model 11 with which this data is linked.

In addition, by linking the model data 12 and the construction information data 14, the data of the linked BIM model can be displayed as a productized state for each manufactured component without necessarily visualizing the BIM model, so that the model data of the linked BIM model 11 can be shared with rebar contractors, formwork manufacturers, PCa factories, reinforcing bar inspection systems, etc., to enable manufacturing and construction without creating drawings. At this time, each component is manufactured from the data of a single BIM model 11 (linked model data) in which data is linked between each contractor, and construction is performed based on the linked model data, so that the work and effort of creating drawings or checking the created drawings can be eliminated, making it possible to share more accurate data and reduce labor.
===Other embodiments===

The above-mentioned embodiment is for the purpose of facilitating understanding of the present invention, and is not intended to limit the present invention. The present invention may be modified or improved without departing from the spirit of the present invention, and it goes without saying that the present invention includes equivalents. In particular, the following embodiments are also included in the present invention.
In the above embodiment, a structure made of reinforced concrete has been described as an example, but the present invention is not limited to this and may be a structure made of steel frame or reinforced steel concrete.

In the above embodiment, a BIM model (BIM data) 11 was used as a building model, but it is not limited to a BIM model and may be a model using any digital data, such as a CIM (Construction Information Modeling) model or a CAD model (including 2D CAD).

In the above embodiment, the structural design information data 13, reinforcement information data 15, and PCa construction method information data 16 stored based on user input were created in Excel format, but this is not limited to this and may be in other formats.

1 Data linkage system 2 Pillars (2A Pillar 1, 2B Pillar 2, 2C Pillar 3, 2D Pillar 4),
2-1 (2A-1, 2B-1, 2C-1, 2D-1) Joint part, 2-2 Pillar body part,
3 beams (3A first beam, 3B second beam, 3C third beam),
4 Joint, 5 Reinforcement bar, 6 Sleeve, 10 BIM processing section, 11 BIM model,
12 model data, 13 structural design information data, 14 construction information data,
15 Reinforcement information data, 16 PCa construction method information data, 20 Model data storage unit,
30 Construction information data storage unit, 40 Data link processing unit,

Claims (6)

a building BIM model generation step in which the BIM processing unit executes the BIM software to generate a BIM model of the building based on the user's input, based on the data input from the input unit;
A model data storage step of storing model data of a model having structural design information data of a part of a structure input when the BIM model is generated;
A construction information storage step in which a construction information data storage unit stores construction information data of the part based on an input from a user;
a data linking step in which a data linking processing unit adds the construction information data to the model data to link the model data with the construction information data;
A data linking method comprising: a building BIM model generation step in which the BIM processing unit executes the BIM software to generate a BIM model of the building based on the user's input, based on the data input from the input unit;
A model data storage step of storing model data of a model having structural design information data of a part of a structure input when the BIM model is generated;
a reinforcement information storage step in which reinforcement information data indicating a reinforcement state of the reinforcing bars in the component is stored in a construction information data storage unit that stores the reinforcement information data based on a user input;
a data linking step in which a data linking processing unit adds the reinforcement bar arrangement information data to the model data and links the model data with the reinforcement bar arrangement information data;
A data linking method comprising: a building BIM model generation step in which the BIM processing unit executes the BIM software to generate a BIM model of the building based on the user's input, based on the data input from the input unit;
A model data storage step of storing model data of a model having structural design information data of a part of a structure input when the BIM model is generated;
A PCa construction method storage step in which a construction information data storage unit stores PCa construction method information data for updating the configuration of the model for the PCa construction method based on a user input;
A data linking step in which a data linking processing unit adds the PCa construction method information data to the structural design information data to link the structural design information data and the PCa construction method information data;
A data linking method comprising: The data linking method according to claim 1,
A data linking method characterized in that the construction information data includes reinforcement information data indicating the reinforcement state of the steel bars in the component and PCa construction method information data for updating the configuration of the model for the PCa construction method. A data linking method characterized in that a manufacturing drawing of a unit of the part to be manufactured by PCa is generated based on the PCa construction method information data by the data linking method according to claim 3 or claim 4. A data linking system that links data of a model having structural design information data of components constituting a building with construction information data of the components,
a BIM processing unit that executes BIM software to generate a BIM model of a building based on a user's input and on data input from the input unit;
A model data storage unit that stores model data of the model including the structural design information data input when the BIM model is generated;
A construction information data storage unit of a computer separate from the BIM processing unit that stores construction information data of the parts based on a user's input;
A data linking processing unit separate from the BIM processing unit that adds the construction information data of the construction information data storage unit to the model data of the model data storage unit and links the model data and the construction information data;
A data linkage system comprising:

Images