Three-dimensional model production system, three-dimensional model production program, and three-dimensional model production method

Abstract

To provide a three-dimensional model production system which enables efficient production of precast members.SOLUTION: A three-dimensional model production system 1 is provided, comprising an acquisition unit 201 for acquiring three-dimensional data of a construction structure, an extraction unit 202 for extracting processing data related to an attachment structure 100 protruding from a side of the construction structure from the three-dimensional data, and a determination unit 204 for determining whether the processing data related to the attachment structure satisfies conditions for a precast member or not.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a three-dimensional model manufacturing system, a three-dimensional model manufacturing program, and a three-dimensional model manufacturing method. [Background technology]

[0002] Traditionally, BIM (Building Information Modeling) models have been used when designing architectural structures such as buildings. By using a BIM model, reinforcing bars for beams and other structures can be automatically generated in virtual space, making it easy to create reinforcement diagrams.

[0003] For example, Patent Document 1 discloses a method for automatically processing rebar components of reinforced concrete using a BIM model. A BIM model of a reinforced concrete building is created, and after checking the created BIM model, if any corrections are necessary, the corrections are fed back to the designer and the rebar components are processed. In this way, by automatically creating a rebar processing list from a BIM model, the labor required for creating the rebar processing list, which was previously performed by rebar assemblers, can be significantly reduced. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2023-101875 Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, in Patent Document 1, the designer creates the data for the BIM model, which is then mutually checked by the rebar fabricator and rebar assembler, who then provides feedback to the designer, who then reflects this in the BIM data and approves it, resulting in a highly accurate BIM that takes construction into consideration.However, the method disclosed in Patent Document 1 does not relate to the precast construction method in which components are manufactured in advance at a manufacturing factory or the like and then transported to the construction site for installation, and therefore does not provide information suitable for efficiently manufacturing components at a manufacturing factory or the like.

[0006] Therefore, an object of the present invention is to provide a three-dimensional model manufacturing system, a three-dimensional model manufacturing program, and a three-dimensional model manufacturing method that enable precast members to be manufactured efficiently. [Means for solving the problem]

[0007] In response to the above-mentioned problems, the three-dimensional model manufacturing system of the present invention is characterized by comprising an acquisition unit that acquires three-dimensional data of an architectural structure, an extraction unit that extracts processing data relating to a mounting structure that protrudes to the side of the architectural structure from the three-dimensional data, and a judgment unit that judges whether the processing data relating to the mounting structure satisfies the conditions for a precast member.

[0008] Here, it is desirable that the judgment unit judges whether or not the conditions are met based on the size or position of the hole provided in the mounting structure, the extension length of the mounting structure, the position of the handrail of the mounting structure, or the position of the board split center line of the mounting structure.

[0009] Furthermore, it is desirable to further provide a display unit that displays the corrected processing data for the mounting structure when the judgment unit determines that the processing data for the mounting structure does not meet the conditions for a precast member.

[0010] It is desirable to further provide a board splitting section that sets the length of the precast member so that it has an appropriate weight or dimension depending on the intended location of the member in the building structure.

[0011] In addition, the invention of a 3D model manufacturing program is characterized in that it causes a computer to execute the steps of acquiring 3D data of an architectural structure, extracting processing data relating to a mounting structure that protrudes to the side of the architectural structure from the 3D data, and determining whether the processing data relating to the mounting structure meets the conditions for a precast member.

[0012] Furthermore, the invention of the method for manufacturing a three-dimensional model can be configured to include an acquisition step for acquiring three-dimensional data of an architectural structure, an extraction step for extracting processing data regarding a mounting structure extending to the side of the architectural structure from the three-dimensional data, and a determination step for determining whether the processing data regarding the mounting structure meets the conditions for a precast member. [Effects of the Invention]

[0013] In this way, in the three-dimensional model manufacturing system of the present invention, processing data regarding mounting structures that protrude to the sides of an architectural structure is extracted from the acquired three-dimensional data of the architectural structure, and it is determined whether the processing data regarding the mounting structures meets the conditions for being a precast member.

[0014] This allows the system to confirm in advance whether the processing data can be manufactured into precast components, thereby avoiding the risk of not being able to manufacture precast components at manufacturing plants, etc., and enabling the efficient manufacture of precast components.

[0015] Whether or not the precast member satisfies the requirements is determined based on the size or position of the holes in the mounting structure, the extension length of the mounting structure, the position of the handrails on the mounting structure, or the position of the board split center line on the mounting structure. Therefore, in any case, processing data suitable for manufacturing the precast member can be provided.

[0016] Furthermore, if the judgment unit determines that the processing data for the mounting structure does not meet the conditions for a precast member, the display unit will display the corrected processing data for the mounting structure. This makes it possible to visually confirm the processing data suitable for manufacturing precast members without having detailed knowledge of manufacturing restrictions at the manufacturing plant, etc. Therefore, work can be carried out efficiently when manufacturing precast members.

[0017] Furthermore, the length of the precast member for the board splitting section is set to an appropriate weight or size depending on the intended placement position in the building structure or the maximum load capacity of the vehicle during transportation. This allows the weight of the precast member to be kept within the range that can be lifted by heavy machinery when it is placed as part of the mounting structure, and also allows the precast member to be transported efficiently by a transport vehicle.

[0018] Furthermore, for the invention of the 3D model manufacturing program and the invention of the 3D model manufacturing method, it is possible to confirm in advance whether the processing data can be manufactured into precast members, thereby avoiding the risk of not being able to manufacture precast members at manufacturing factories, etc. Therefore, precast members can be manufactured efficiently. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a block diagram illustrating a configuration of a three-dimensional model manufacturing system according to an embodiment of the present invention. [Figure 2] 1 is a flowchart illustrating a process flow of a three-dimensional model manufacturing method according to an embodiment of the present invention. [Figure 3] (a) is a perspective view of the BIM model, (b) is a perspective view of the balcony model, and (c) is a plan view of the balcony model. [Figure 4] This is a diagram to explain the arrangement when taking into account the weight or dimensions of each precast member. [Figure 5] 1 is a diagram showing the manufacturing process of a precast member; [Figure 6] FIG. 10 is a diagram illustrating an example of a determination table. [Figure 7] FIG. 10 is a diagram for explaining check points on a balcony. [Figure 8] FIG. 1 is a diagram showing an example of a precast member. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a block diagram illustrating the configuration of a 3D model manufacturing system 1 according to the embodiment. Fig. 2 is a flowchart illustrating the processing flow of a 3D model manufacturing method and a 3D model manufacturing program according to the embodiment.

[0021] The 3D model manufacturing system 1 according to the embodiment is a system that extracts processing data related to the target mounting structure from a BIM model created by a construction company and determines whether the extracted processing data satisfies the conditions (manufacturing or design restrictions) for precast components. The processing data extracted from the BIM model is used when manufacturing precast components at a manufacturing plant such as a factory, but if the processing data does not satisfy the conditions for precast components, the system displays the modified processing data. Note that the "precast components" described in this embodiment include not only completed reinforced concrete components, but also half-precast components with some of the rebar exposed that are completed by pouring concrete after installation on site.

[0022] 1, the manufacturing system 1 includes a database 10, a control unit 20, and a storage unit 30. The control unit 20 includes an acquisition unit 201, an extraction unit 202, a board splitting unit 203, a determination unit 204, a correction unit 205, and a display unit 206.

[0023] The database 10 stores in advance a BIM model as three-dimensional data created by a construction company or the like based on three-dimensional CAD software such as Revit (registered trademark).

[0024] Fig. 3(a) is a perspective view of the BIM model, Fig. 3(b) is a perspective view of the balcony model, and Fig. 3(c) is a plan view of the balcony model. The database 10 stores three-dimensional data of the entire building structure, as shown in Fig. 3(a).

[0025] The acquisition unit 201 acquires the BIM model stored in the database 10. As will be described later, in order to manufacture a plurality of precast members that make up the balcony portion, the acquisition unit 201 acquires three-dimensional data of the entire building structure including the balcony portion that is configured to have a plurality of parts that will be installed as precast members.

[0026] The extraction unit 202 extracts processed data relating to the mounting structure that protrudes to the side of the building structure from the three-dimensional data. Specifically, from the BIM model acquired by the acquisition unit 201, three-dimensional data of a balcony 100 as an example of a mounting structure, as shown in Fig. 3(b) or 3(c), is extracted. The three-dimensional data is information such as the dimensions of each plate-like member that makes up the balcony 100, the arrangement of related members, etc.

[0027] The board dividing unit 203 sets the length of the precast members so that they have appropriate weight or dimensions depending on the planned placement position in the architectural structure. For example, as shown in FIG. 3(c), the board dividing unit 203 sets the precast members that make up the balcony 100 so that they have an equal length (extension dimension) L. However, depending on the weight of each precast member, there is a risk that the precast members will not be able to be placed where they should be due to limitations on the crane's lifting load. Taking such circumstances into consideration, the board dividing unit 203 manages placement so that the precast members have appropriate weight or dimensions depending on the planned placement position in the balcony area.

[0028] Specifically, as shown in FIG. 4, when constructing a balcony 100 using heavy equipment 200 such as a crane placed around a building structure, it is assumed that the range of movement of the heavy equipment 200 (the shaded area in the figure) is limited in advance. In such a case, even when the same precast members are placed, the load (moment) on the heavy equipment 200 increases with increasing distance from the heavy equipment 200. Therefore, in such a case, the board splitting unit 203 takes into account the load acting on the heavy equipment 200 and sets the placement dimension of the precast members as L1 based on the weight of the precast members placed in locations far from the heavy equipment 200. Note that for precast members closer to the heavy equipment 200, the placement dimension of the precast members may be larger than L1, taking into account the smaller load.

[0029] Furthermore, not only when constructing the balcony 100 using heavy machinery 200, but also when transporting the precast members using a precast member transport vehicle such as a truck (not shown), the maximum load capacity of the precast members may vary depending on the type (size) of the truck and the transport route taken by the truck. Therefore, to avoid placing an excessive load on the truck during transport, the precast members are set to an appropriate weight or dimensions. In short, it is desirable for the precast members to be formed to a weight or dimensions that do not cause excessive loads during any of the processes from manufacturing to installation.

[0030] The determination unit 204 determines whether the processing data for the mounting structure satisfies the conditions for precast members. For example, even if it complies with the Building Standards Act, if it does not comply with the standards for precast members, it may be difficult to manufacture it in an actual manufacturing factory. Therefore, it determines whether the processing data for the plate-like members that make up the balcony 100 satisfy the conditions for precast members. Detailed conditions will be described later.

[0031] If the determining unit 204 determines that the processing data relating to the mounting structure does not satisfy the conditions for a precast member, the correcting unit 205 corrects the processing data to data that allows the mounting structure to be efficiently manufactured in a manufacturing factory.

[0032] The display unit 206 displays the processing data related to the mounting structure. For example, if the processing data does not satisfy the conditions for a precast member, the display unit 206 displays the corrected processing data so that the designer can visually confirm or correct the processing data suitable for manufacturing the precast member.

[0033] The control unit 20 may also have a data creation unit that automatically creates 3D reinforcement data from processing data of precast members that meet certain conditions. For example, the data creation unit selects reinforcement data that matches the manufacturing conditions in accordance with the processing data of the precast members, and creates reinforcement data that enables automatic reinforcement in a manufacturing factory or the like.

[0034] The storage unit 30 is a storage medium that records data generated during processing in the control unit 20 and data required for arithmetic processing, and includes a hard disk, flash memory, magnetic disk, optical disk, etc. A cloud server can also be used as the storage unit 30.

[0035] Next, the flow of processing in the method for manufacturing a three-dimensional model according to the embodiment will be described with reference to the flowchart of FIG. 2 and the diagram of FIG. 5 showing the manufacturing process.

[0036] First, in step S1, the acquisition unit 201 acquires three-dimensional data of an architectural structure stored in the database 10. For example, the acquisition unit 201 acquires a BIM model of an architectural structure including a balcony portion as shown in FIG.

[0037] Next, in step S2, the extraction unit 202 extracts processing data from the three-dimensional data. That is, the extraction unit 202 extracts processing data (drawings) required for manufacturing a precast board, known as a half precast board, from the three-dimensional data included in the BIM model of the balcony 100, as shown in Fig. 5.

[0038] Next, in step S3, the determination unit 204 determines whether the processing data related to the mounting structure satisfies the conditions for a precast member. For example, based on the extracted processing data, it determines whether there is a possibility that the structure can be manufactured in an actual manufacturing factory.

[0039] Here, the conditions for precast members will be explained using Figures 6 and 7. The items to be judged include the length of the overhang, the position of the board centerline, the size and position of the downspout, the size and position of the roof drain, the size and position of the escape hatch, and the position of the handrail. Note that the items to be judged may include other factors.

[0040] As shown in Figure 7, the balcony 100 is composed of multiple balcony units 101 formed in the shape of flat plates. The balcony units 101 are components that make up the balcony 100, manufactured as precast members. The overhang length refers to the dimension that the balcony 100 projects outward, and is preferably between A mm and B mm, as shown in Figure 6, for example. The criteria for determining whether the conditions are met change depending on whether an escape hatch is present or not.

[0041] The board center line position is the boundary part P of the multiple balcony units 101 that make up the balcony 100. The end of the balcony unit 101 is located at a position that is half the joint width away from the board center line.

[0042] The size of the downspout refers to the diameter of the downspout installed on the balcony 100, and is, for example, C mm as shown in FIG. 6. The position of the downspout refers to the position of the downspout installed on the balcony 100, and the condition is whether or not a downspout is installed on the balcony unit 101. The conditions for determining whether or not the conditions are met change depending on the diameter of the downspout, whether the downspout is flat or slab-shaped, and the position of the board-splitting center line.

[0043] The size of the roof drain refers to the diameter of the drainage part installed on the balcony 100, and is, for example, D mm as shown in Figure 6. The position of the roof drain is determined based on whether the conditions are met, that is, whether it is in a straight line with the downspout and above the drain ditch.

[0044] The size of the escape hatch refers to the dimensions of the escape hatch installed on the balcony 100 as shown in Figure 7, and the opening dimensions are, for example, E mm x F mm as shown in Figure 6. Furthermore, the escape hatch must be at least G mm away from the edge of the balcony unit 101, and if the escape hatch is close to a pillar cutout, it must be at least G mm away from the edge of the balcony unit 101. It is not permitted to install reinforcement on the protruding corners. Furthermore, it must be H mm away from the tip (at least I mm from the bank edge).

[0045] The criteria for determining whether the handrail anchor satisfies the conditions are that it is located on the outer periphery of the balcony 100 and is at least J mm away from the longitudinal end of the balcony unit 101, and at the corners it is at least K mm away from the longitudinal and lateral ends of the balcony unit 101.

[0046] If the conditions for a precast member are not met in step S3, the process proceeds to step S4, where the modified processed data for the mounting structure is displayed. For example, the processed data for the balcony 100 may be modified until it meets the conditions for automatic reinforcement placement in a manufacturing factory, etc., and this modified processed data may be displayed on a display or the like.

[0047] If the conditions for a precast member are met in step S3, three-dimensional reinforcement data is created for the processed data that meets the conditions in the next step S5. Specifically, reinforcement data that will form the basis of a balcony unit 101 as shown in Fig. 8 is created.

[0048] In this way, in the three-dimensional model manufacturing system 1 according to an embodiment of the present invention, processing data relating to the balcony (mounting structure) 100 extending out to the side of the building structure is extracted from the acquired three-dimensional data of the building structure, and it is determined whether the processing data relating to the balcony 100 satisfies the conditions for a precast member.

[0049] This allows the system to confirm in advance whether the processing data can be used to manufacture precast components, thereby avoiding the risk of not being able to manufacture precast components at manufacturing plants, etc., or having to take time-consuming measures that differ from the normal manufacturing process, thereby enabling the efficient manufacture of precast components.

[0050] Here, whether or not the conditions are met is determined based on the size or position of the hole in the balcony 100, the overhang length of the balcony 100, the position of the handrail of the balcony 100, or the position of the board-splitting center line of the balcony 100. Therefore, in any case, it is possible to provide processing data suitable for manufacturing as a precast member.

[0051] Furthermore, if the determination unit 204 determines that the processing data for the balcony 100 does not satisfy the conditions for a precast member, the correction unit 205 corrects the processing data for the balcony 100. This makes it possible to obtain processing data suitable for manufacturing precast members without detailed knowledge of manufacturing restrictions at manufacturing factories, etc. Therefore, work can be carried out efficiently when manufacturing precast members.

[0052] Furthermore, the board splitting unit 203 sets the length of the precast member so that it has an appropriate weight or size depending on the intended placement position in the building structure. This allows the weight of the precast member to be within the range that can be lifted by heavy equipment 200 when it is placed as part of the mounting structure. Furthermore, the board splitting unit 203 sets the length of the precast member so that it has an appropriate weight or size depending on the maximum load capacity of the vehicle during transportation. This allows the precast member to be transported efficiently by the transport vehicle.

[0053] Furthermore, for the invention of the 3D model manufacturing program and the invention of the 3D model manufacturing method, it is possible to confirm in advance whether the processing data can be manufactured into precast members, thereby avoiding the risk of not being able to manufacture precast members at manufacturing factories, etc. Therefore, precast members can be manufactured efficiently.

[0054] Each embodiment of the present invention has been described in detail above with reference to the drawings, but the specific configuration is not limited to these embodiments, and design changes that do not deviate from the gist of the present invention are included in the present invention.

[0055] For example, in the above embodiment, the balcony 100 has been described as an example of a mounting structure that protrudes to the side of an architectural structure, but the mounting structure may be a structure other than the balcony 100. Furthermore, whether or not the conditions are met is determined based on the size or position of the hole provided in the balcony 100, the protruding length of the balcony 100, the position of the handrail of the balcony 100, or the position of the board-splitting center line of the balcony 100, but whether or not the conditions are met may also be determined based on criteria other than these. [Explanation of symbols]

[0056] 1: Manufacturing system 20: Control section 100:Balcony 201: Acquisition Department 202:Extraction part 203: Board splitting section 204: Judgment section 205: Revision Department 206: Representation section

Claims

1. an acquisition unit that acquires three-dimensional data of an architectural structure; an extraction unit that extracts processing data relating to a mounting structure that protrudes laterally from the architectural structure from the three-dimensional data; A three-dimensional model manufacturing system characterized by comprising a judgment unit that judges whether the processing data regarding the mounting structure satisfies the conditions for a precast member.

2. 2. The system for manufacturing a three-dimensional model according to claim 1, wherein the determining unit determines whether the condition is satisfied based on the size or position of a hole provided in the mounting structure.

3. 2. The system for manufacturing a three-dimensional model according to claim 1, wherein the determining unit determines whether the condition is satisfied based on a protruding length of the mounting structure.

4. 2. The three-dimensional model manufacturing system according to claim 1, wherein the determining unit determines whether the condition is satisfied based on the position of a handrail of the mounting structure.

5. 2. The three-dimensional model manufacturing system according to claim 1, wherein the determining unit determines whether the condition is satisfied based on a board split center line position of the mounting structure.

6. A three-dimensional model manufacturing system as described in any one of claims 1 to 5, characterized in that it further comprises a display unit that displays modified processing data for the mounting structure when the judgment unit determines that the processing data for the mounting structure does not meet the conditions for a precast member.

7. A three-dimensional model manufacturing system as described in any one of claims 1 to 5, further comprising a board splitting unit that sets the length of the precast members so that they have an appropriate weight or dimensions depending on the intended placement position in the architectural structure.

8. A procedure for acquiring three-dimensional data of a building structure; A step of extracting processing data relating to a mounting structure protruding laterally from the architectural structure from the three-dimensional data; A three-dimensional model manufacturing program for causing a computer to execute a procedure for determining whether the processing data regarding the mounting structure satisfies the conditions for a precast member.

9. an acquisition step of acquiring three-dimensional data of an architectural structure; an extraction step of extracting processing data relating to a mounting structure protruding laterally from the architectural structure from the three-dimensional data; A method for manufacturing a three-dimensional model, comprising a determination step of determining whether the processing data regarding the mounting structure satisfies the conditions for a precast member.

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