Reinforcing bar delivery support system and reinforcing bar delivery support method

Abstract

To provide a reinforcing bar delivery support system that can optimize delivery of reinforcing bars.SOLUTION: A reinforcing bar delivery support system 60 used to deliver reinforcing bars used in building construction to a construction site (construction unit 14) creates reinforcing bar machining information about reinforcing bar machining from a reinforcement arrangement drawing showing arrangement of reinforcing bars, and processes on the basis of reinforcing bar processing information, reinforcing bars necessary for a plurality of construction periods stipulated in stages in a construction schedule to deliver the construction site. The reinforcing bar delivery support system 60 includes: a data supply unit 12; a processing unit 16 that processes, on the basis of the reinforcing bar processing information supplied from the data supply unit 12, the reinforcing bars; and a construction unit 14 to which the reinforcing bars processed by the processing unit 16 are delivered.SELECTED DRAWING: Figure 12

Description

Technical Field

[0001] The present invention relates to, for example, a reinforcing bar delivery support system for supporting the delivery of reinforcing bars to a construction site, and a reinforcing bar delivery support method.

Background Art

[0002] In Patent Document 1 listed below, an invention related to a logistics system in construction work is disclosed. In the invention disclosed in Patent Document 1, in an information network constructed among a field work site, a specialized construction contractor, and a transporter in construction work, a work schedule is shared. The work schedule shows a work scheduled date column and a material delivery possible date column. Order confirmation is performed between the transporter and the specialized construction contractor. The transporter transports materials with the truck as fully loaded as possible in accordance with the adjusted desired delivery date and delivery possible date.

[0003] Also, in Patent Document 2 listed below, it is disclosed that a construction drawing is created in which a three-dimensional interference check of reinforcing bars to be reinforced is performed in advance by creating a three-dimensional reinforcement model from a two-dimensional CAD drawing.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] Incidentally, the invention described in Patent Document 1 is useful in that it allows for the sharing of construction schedules over a network. However, there are many types of materials used in construction work, and it is desirable to have delivery methods and systems optimized according to the type and characteristics of the materials. Furthermore, the invention described in Patent Document 2 is designed to perform interference checks on reinforcing bars at the construction site, and does not improve the convenience of delivering reinforcing bars to the construction site.

[0006] The present invention aims to provide a rebar delivery support system and a rebar delivery support method that enable the optimization of rebar delivery. [Means for solving the problem]

[0007] (1) The features of the rebar delivery support system according to the present invention are that it is a rebar delivery support system used to deliver rebar used in the construction of a building to the construction site, From the reinforcement drawing showing the arrangement of the reinforcement bars, reinforcement processing information related to the processing of the reinforcement bars is created. The process involves processing the reinforcing bars required for multiple construction phases specified in the construction schedule, based on the reinforcing bar processing information, and delivering them to the construction site. (2) The features of the rebar delivery support system according to the present invention are that it creates rebar processing information related to the processing of the rebar from a reinforcement drawing showing the arrangement of rebar used in the construction of a building, A rebar delivery support system that delivers the rebars required for multiple construction periods specified in stages in the construction schedule to the construction site of the building, based on the rebar processing information, A data supply unit capable of supplying the aforementioned rebar processing information to an external source, A processing unit that processes the reinforcing bars based on the reinforcing bar processing information supplied from the data supply unit, The construction section includes a section into which the reinforcing bars processed by the processing section are delivered, The aforementioned data supply unit is Based on the reinforcement drawing information, which is the information from the reinforcement drawing, a 3D model information of the reinforcement is created. Based on the three-dimensional model information, the rebar processing information is created. The aforementioned rebar processing information is stored, Multiple pieces of construction time information indicating the aforementioned construction time are stored, Based on the aforementioned construction timing information, the rebar processing information is supplied to the processing unit in accordance with the aforementioned construction timing. The aforementioned processing section is The reinforcing bars are processed in accordance with the aforementioned construction period. The processed reinforcing bars will be delivered in accordance with the construction schedule. (3) The features of the reinforcement bar delivery support method according to the present invention include a step of storing multiple construction timing information related to the construction schedule of a building, The process of selecting the reinforcing bars required for the construction period indicated by the aforementioned construction period information, A step of outputting processing instruction information for the selected reinforcing bar, The process includes outputting delivery instruction information for the reinforcing bars processed based on the processing instruction information. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a rebar delivery support system and a rebar delivery support method that enable the optimization of rebar delivery. [Brief explanation of the drawing]

[0009] [Figure 1] This is an explanatory diagram showing the flow of information in a construction support system. [Figure 2] This is an explanatory diagram showing an example of a 3D model, reinforcement drawings, and a summary table. [Figure 3] (a) and (b) are explanatory diagrams showing examples of reinforcement bar arrangement diagrams. [Figure 4] This is a block diagram that schematically shows the configuration of the construction support device. [Figure 5] This is a diagram showing an example of a reinforcing bar object. [Figure 6] This is an explanatory diagram showing an example of parameter input and an example of a numerical table corresponding to the input parameters. [Figure 7] (a) is an explanatory diagram showing the central dimensions of a U-shaped reinforcing bar, and (b) is an explanatory diagram showing the outer and inner dimensions of the reinforcing bar in (a). [Figure 8] (a) is an explanatory diagram showing the central dimensions with the bent part enlarged, and (b) is an explanatory diagram showing the center line of the U-shaped reinforcing bar marked with symbols for each part. [Figure 9] (a) is a chart showing an example of a tabulation representing the lengths of each part of the U-shaped reinforcing bar by the outer dimensions, and (b) is a chart showing an example of a tabulation representing the lengths of each part of the U-shaped reinforcing bar by the central dimensions. [Figure 10] It is an explanatory diagram showing a U-shaped reinforcing bar represented by changing the bent part to a right-angled shape. [[ID=ll]] [Figure 11] (a) is an explanatory diagram schematically showing the classification of the 3D model of the bent reinforcing bar, (b) is an explanatory diagram schematically showing the first bent reinforcing bar information, and (c) is an explanatory diagram schematically showing the first bent reinforcing bar information and the second bent reinforcing bar information. [Figure 12] It is an explanatory diagram showing the flow of information and the like in the steel supply support system. [Figure 13] It is an explanatory diagram showing an example of a reinforcement drawing. [Figure 14] (a) is a chart showing an example of part of the information managed by the data supply unit, and (b) is also a chart showing an example of the subsequent information in (a). [Figure 15] It is a flowchart schematically showing the steel supply support method. [Figure 16] It is a block diagram schematically showing a modification example related to the configuration of the steel supply support system.

Mode for Carrying Out the Invention

[0010] Hereinafter, with reference to the drawings, preferred embodiments of the present invention will be described in detail. In the present embodiment and the drawings related to the present embodiment, components with the same reference numerals shall have the same structure or function.

[0011] <Necessity of the construction support system 10 and the steel bar supply support system 60> In recent years, the use of BIM (Building Information Modeling) has been proposed for construction projects such as office buildings and mixed-use facilities. In BIM, parts are assembled in a virtual space, and various information, such as the weight of reinforcing bars and the completion date, is incorporated into the modeled building.

[0012] In reinforced concrete buildings, a large number of reinforcing bars of various shapes and dimensions are used. Furthermore, the process from design to fabrication of the reinforcing bars involves many businesses, including design companies (including architectural design offices), construction sites, and reinforcing bar fabrication companies.

[0013] Generally, for example, reinforcement drawings and schedules created by a design company are delivered to the construction site, where the construction site creates processing sheets from the reinforcement drawings and schedules. Furthermore, the processing sheets are delivered from the construction site to the rebar processing company, where they convert the processing sheets into a 2D code (also known as "QR code (registered trademark)"). The rebar processing company reads the 2D code into a rebar processing machine, and the rebar is processed based on the information in the 2D code. Finally, the processed rebar is delivered from the rebar processing company to the construction site in the specified quantities.

[0014] In each stage of the rebar supply process, information regarding the dimensions of the rebar and units of measurement (information related to numerical representation) is converted to ensure smooth operation in each stage. This conversion is done manually, resulting in information fragmentation between stages.

[0015] Manual data conversion is performed, for example, to change the numerical representation in 3D data to a numerical representation that is familiar to workers at construction sites or rebar processing companies. Traditionally, this data conversion process has been time-consuming and costly, and has been prone to human error and inaccuracies in various estimation figures such as weight and price.

[0016] Therefore, the construction support system 10 described below enables seamless and low-cost execution of rebar design and construction. Furthermore, the construction support system 10 is used in the rebar delivery support system 60 (Figure 12). The rebar delivery support system 60 enables ordering and receiving of rebar via the internet and just-in-time delivery according to the construction process related to rebar. Below, the construction support system 10 will be described first, followed by the rebar delivery support system 60.

[0017] <Basic Configuration of Construction Support System 10> Figure 1 schematically shows the configuration of a construction support system 10 according to one embodiment of the present invention. The construction support system 10 consists of a data supply unit 12, a construction unit 14, and a processing unit 16. The data supply unit 12 can be an information systems company or an architectural design office.

[0018] The construction department 14 can refer to the construction site where the building to be constructed (hereinafter referred to as the "target building," etc.) is being built. The processing department 16 can refer to a rebar processing company that receives orders from the construction department 14, bends the rebar, and delivers the manufactured rebar to the construction department 14.

[0019] The data supply unit 12 utilizes a BIM (Building Information Modeling) software program (construction support program, hereinafter referred to as the "BIM program") to create reinforcement drawings, schedules, and fabrication reports from the BIM model, as shown in Figure 1. The data supply unit 12 also creates two-dimensional codes (also known as "QR Code®"). The specific information (data) handled by the data supply unit 12 will be described later.

[0020] Figure 2 shows an example of various types of information created by the data supply unit 12. Figure 2 shows a 3D model (BIM model) 22 related to the reinforcement of a building, a reinforcement drawing 24 created from the 3D model, and a summary table 26 created based on the reinforcement drawing 24. The 3D model 22, reinforcement drawing 24, and summary table 26 shown in Figure 2 are merely examples. The data supply unit 12 can create various other types of 3D models 22, reinforcement drawings 24, and summary tables 26 besides those shown.

[0021] Figures 3(a) and 3(b) show an example of a reinforcement bar detail drawing (beam-column connection structure) created based on this information. The structure shown in the 3D model 22 in Figure 2 and the reinforcement bar detail drawings in Figures 3(a) and 3(b) is also an example of a "project." A "project" is a model of the target structure.

[0022] In the data supply unit 12, a general-purpose personal computer (hereinafter referred to as "PC") can be used as the construction support device 30 (Figure 4). The construction support device 30 is connected to the management computer (not shown) of the construction unit 14 and the processing unit 16 (Figure 1) via a communication network (not shown) so that they can communicate with each other. Examples of communication networks include the internet, LAN, WAN, public telephone lines, base stations, mobile communication networks, and those interconnected via gateways (including so-called clouds).

[0023] As shown in Figure 4, the construction support device 30 includes a control unit 31, a storage unit 32, a communication unit 33, etc., and peripheral devices include an operation unit 34 and a display unit 35, etc.

[0024] The control unit 31, although not shown in the diagram, is composed of a CPU (Central Processing Unit), ROM (Read Only Memory), RAM (Random Access Memory), etc. The CPU of the control unit 31 loads various computer programs stored in the ROM and memory unit 32 onto the RAM and executes them. The control unit 31 may be any processing circuit or arithmetic circuit equipped with multiple CPUs, a multi-core CPU, a GPU (Graphics Processing Unit), a microcontroller, volatile or non-volatile memory, etc.

[0025] The control unit 31 includes a 3D model creation unit 36, a reinforcement drawing creation unit 37, a summary table creation unit 38, a reinforcement information calculation unit 39, and a 2D code creation unit 40, etc. The 3D model creation unit 36 ​​creates information for the 3D model 22 shown in Figure 2. The reinforcement drawing creation unit 37 creates information for the reinforcement drawing 24 (Figure 2), and the summary table creation unit 38 creates information for the summary tables (Figure 2, Figures 9(a), (b)).

[0026] The rebar information calculation unit 39 performs calculations on rebar information used by the 3D model creation unit 36, the reinforcement drawing creation unit 37, the summary table creation unit 38, and the 2D code creation unit 40. The 2D code creation unit 40 creates information for the 2D code that will be displayed on management tags (picture tags), etc.

[0027] These 3D model creation unit 36, reinforcement drawing creation unit 37, schedule creation unit 38, reinforcement information calculation unit 39, and 2D code creation unit 40 are functional modules that the CPU of the control unit 31 executes according to the BIM program. Of these functional modules, the details of the schedule creation unit 38, the reinforcement information calculation unit 39, and the 2D code creation unit 40 will be described later.

[0028] The memory unit 32 is a non-volatile memory unit that includes semiconductor memory such as ROM or RAM, an HDD (Hard Disk Drive), or an SSD (Solid State Drive) for storing various types of information. The memory unit 32 stores operating system programs, driver programs, application programs, and data used for processing in the processor (in this case, the control unit 31).

[0029] The program stored in the storage unit 32 may be provided on a non-temporary recording medium (not shown) on which the program is recorded in a readable format. Examples of recording media include portable memory such as CD-ROM, USB (Universal Serial Bus) memory, SD (Secure Digital) card, microSD card, and CompactFlash (registered trademark). In this case, the control unit 31 reads the program from the recording medium using a reading device (not shown) and installs the read program into the storage unit 32.

[0030] The program stored in the memory unit 32 may be provided via communication through the communication unit 33. In this case, the control unit 31 obtains the program through the communication unit 33 and installs the obtained program into the memory unit 32.

[0031] The communication unit 33 is equipped with an interface circuit for communicating with the management computer (not shown) of the construction unit 14 (Figure 1) via a communication network. The communication unit 33 performs wired or wireless data communication in accordance with a predetermined communication protocol. For example, if information to be sent to the construction unit 14 is input from the control unit 31, the communication unit 33 transmits the input information to the construction unit 14. The communication unit 33 outputs the information received from the construction unit 14 via the communication network to the control unit 31.

[0032] The construction support device 30 is connected to an operation unit 34 and a display unit 35. The operation unit 34 is an operation input means such as a keyboard, mouse, or touch panel. Although only one operation unit 34 is shown in Figure 4, the operation unit 34 comprehensively represents these operation input means. The display unit 35 is a display means such as a general display device.

[0033] Furthermore, a general-purpose PC can be used as the management computer (not shown) for the construction unit 14 (Figure 1). Similarly, the processing unit 16 (Figure 1) also uses a management computer (not shown) to communicate with the construction unit 14 via a communication network. The management computers for the construction unit 14 and the processing unit 16 can have the same hardware configuration as the construction support device 30.

[0034] In the control unit 31 of the construction support device 30 (Figure 4) of the data supply unit 12, the rebar information calculation unit 39 has functions for performing various calculations related to rebar (described later). The rebar information calculation unit 39 also has functions such as rounding up and rounding down of numerical values, and numerical conversion between units of millimeters, centimeters, and meters. Furthermore, the rebar information calculation unit 39 also has functions for calculating the length of rebar, and calculating the weight and estimated price of rebar from the length of rebar. The rebar information calculation unit 39 may perform numerical calculations using a spreadsheet software program (hereinafter referred to as "spreadsheet software") installed in the construction support device 30.

[0035] The 2D code creation unit 40 creates a 2D code based on the rebar information obtained by the rebar information calculation unit 39. The 2D code contains information on the dimensions of each part of the rebar that is to be manufactured. The 2D code is transmitted to the processing unit 16 via the construction unit 14 and read by the rebar processing machine (reference numeral 17 in Figure 1) in the processing unit 16. The rebar processing machine 17 bends the straight rebar before processing to produce rebar of the desired shape and dimensions. Here, the rebar processing machine 17 in Figure 1 is shown merely as an icon and does not specifically represent the configuration of the rebar processing machine 17 actually used in the processing unit 16.

[0036] Furthermore, the control unit 31 has a variety of functions in addition to those of the rebar information calculation unit 39 and the 2D code creation unit 40, but a detailed explanation of these will be omitted here.

[0037] <Hierarchical structure of reinforcing bar objects> Figure 5 shows an example of a rebar object handled in a BIM program. In a BIM program, rebars are classified by shape, and each classification constitutes a "family." The rebar object shown in the example in Figure 5 is classified into a "family" of rebars with a U-shaped form (as in the Japanese katakana character).

[0038] The term "family" as described above refers to one level in various types of information that have a hierarchical structure. In the BIM program of this embodiment, the model of the target building is defined as a "project," and below this "project," various levels such as "category," "family," and "type" are defined.

[0039] Of these hierarchies, "Category" is the highest level relative to the others, and "Type" is the lowest level relative to the others. "Family" is a level positioned between "Category" and "Type".

[0040] For example, the "Category" includes classifications such as "Column," "Wall," and "Window." Furthermore, the "Category" of "Column" includes "Families" such as "Cylindrical Column" and "Rectangular Column."

[0041] The "family" for "cylinder" has defined "types" such as "cylinder (diameter 450mm)" and "cylinder (diameter 600mm)". The "family" for "rectangular column" has defined "types" such as "rectangular column (450mm x 600mm)" and "rectangular column (600mm x 750mm)".

[0042] In this embodiment, a "category" of "reinforcement bars" is created. The "category" of "reinforcement bars" defines multiple types of "families" relating to U-shaped, square, or other shapes of reinforcement bars. Furthermore, for each type of "family," multiple types with different sizes of common parts are defined.

[0043] In BIM programs, various other "categories," "families," and "types" are defined. Information on objects related to each of these "categories," "families," and "types" is retrieved and used from the storage unit 32 (Figure 4). Furthermore, BIM program operators can add "categories," "families," and "types" that are not pre-registered in the library to the library as needed.

[0044] For example, there are different types of "families," such as "system families," "in-place families," and "embeddable families." Of these, "system families" are the basic families and include things like walls, floors, roofs, ceilings, and stairs.

[0045] "In-place families" are families that allow the user to modify the shape of the object. "Importable families" are families that are created individually and loaded from a library into a project file for use. Examples include windows, doors, furniture, and equipment from a specific building materials manufacturer. It is possible to create parts that constitute a unique design in a building using "in-place families," and create general parts that can be used in multiple buildings using "importable families."

[0046] Such multi-family functionality may also be present in conventional, general-purpose BIM programs. However, the inventors have defined novel parameters for rebar objects that were not previously available, making the BIM program even more effective. This point will be explained below.

[0047] <Parameters for the rebar object> In the example in Figure 5, for reinforcing bar objects (hereinafter referred to as "reinforcing bar objects") of the same classification (corresponding in this case to the "family" of "U-shaped") but different sizes (corresponding to "type"), the following information is shown: "number", "diameter", "shape", "dimension a", "dimension b", "dimension c", "dimension d", "dimension e", "length of reinforcing bar", "unit weight", "weight per bar", "number of bars", and "weight of reinforcing bar".

[0048] Each rebar object is assigned detailed length information (such as "dimension a", "dimension b", "dimension c", "dimension d", and "dimension e") that determines its diameter, weight, and shape. In the example in Figure 5, dimension a is the length of the straight section that makes up the central part of Figure 5 (hereinafter referred to as the "central straight section").

[0049] Dimensions b and d are the lengths of the straight sections located to the left and right of the central straight section in Figure 5 (referred to here as the "left straight section" and the "right straight section"). Dimensions c and e are the lengths of the arc-shaped sections connecting the central straight section and the left and right straight sections in Figure 5 (referred to here as the "bent section").

[0050] In the example in Figure 5, three types of rebar objects (F1-F3) with different a-dimensions or b-dimensions are shown. Various pieces of information relating to the rebar objects (F1-F3 in this case) function as parameters. By changing the various pieces of information relating to the rebar objects (F1-F3 in this case) the operator changes the values ​​of the corresponding parameters, and the type of rebar object is changed.

[0051] <Example of parameter input> Figure 6 shows an example of the screen display during the input process for parameters of a reinforcing bar object. On the left side of Figure 6, a U-shaped reinforcing bar object 42A is displayed. The "defined parameters" and arrows shown for the reinforcing bar object 42A are added for the purpose of explaining this embodiment.

[0052] For the rebar object 42A, as indicated by the "defined parameters" text and arrows, when the operator inputs dimensions for the straight sections (parts a to c), various parameters, including information about the bent sections (hereinafter referred to as "bent section information"), are automatically calculated and displayed in the parameter table 42B shown on the right side of Figure 6.

[0053] In the example in Figure 6, the dimensions of the straight section of the reinforcing bar object 42A are entered as a (dimension of section a) = 1200 [mm], b (dimension of section b) = 600 [mm], and c (dimension of section c) = 1200 [mm]. Accordingly, parameter table 42B displays the entered dimensions a to c, as well as information about the bend (radius of the arc in the bend) and other information about the straight section. Here, in the example in Figure 6, unlike the example in Figure 5, section c is the straight section on the left.

[0054] The input dimension value is the sum of the straight and bent sections. In the example in Figure 6, the rebar diameter is 10 [mm], and the bending diameter calculated based on this diameter is 27.6 [mm]. If a dimension value of 1200 [mm] is entered for section a, the breakdown of the dimension for section a is the bending diameter + the exact length of the straight section in millimeters (hereinafter referred to as "millimeters," with one decimal place) + the bending diameter. Specifically, the breakdown of the dimension for section a is 27.6 [mm] + 1144.8 [mm] + 27.6 [mm] = 1200 [mm].

[0055] In this way, by inputting a dimension value that includes the bending diameter (in this case, 1200 [mm]) as the dimension value of the straight section, the system distinguishes between the dimensions of the straight section in millimeters (straight section information) and the bending section information such as the bending diameter, and performs calculations for various parameters.

[0056] Although the U-shaped rebar object 42A is used as an example here, for other families of rebar objects (not shown), the dimensions of the straight sections can be entered to calculate the straight section information and bent section information in millimeters.

[0057] In BIM programs, parameter values ​​can be freely changed. It is also possible to perform operations on parameters (addition, subtraction, multiplication, division, and operations on functions including parameters). Furthermore, BIM programs create various types of information for rebar objects using new parameters. Finally, BIM programs aggregate various types of information based on the created data.

[0058] <New parameter> The BIM program in this embodiment has a function to calculate the length and weight of reinforcing bars using the center dimension (described later) of the reinforcing bar having a bend (also called "bent reinforcing bar"). The construction support method of this embodiment, which is performed using the BIM program, comprises a 3D model information creation step that creates 3D model information for the 3D model using the center dimension information of the bent reinforcing bar in millimeters and the outer dimension information in a unit larger than millimeters (here in centimeters) as parameters for the 3D model of the bent reinforcing bar, and a reinforcing bar manufacturing information creation step that creates reinforcing bar manufacturing information based on the 3D model information, and at least in the 3D model information creation step, the 3D model information is created including the center dimension information.

[0059] "Center dimension information" corresponds to information representing the dimensions (length) of parts along the center line of the reinforcing bar (such as center line C in Figure 7(a)), as will be explained later. "External dimension information" corresponds to information representing the dimensions (length) of parts along the outer surface of the reinforcing bar (such as outer surface 47 in Figure 7(b)). "3D model information" corresponds to information of the 3D model of the bent reinforcing bar (such as the information of the bent reinforcing bar shown in the summary table in Figure 9(b)). The "3D model information creation process" is the process of creating the "3D model information". "Reinforcing bar manufacturing information" corresponds to information created based on the "3D model information" (such as 2D codes and information used to create 2D codes). The "Reinforcing bar manufacturing information creation process" is the process of creating the "Reinforcing bar manufacturing information". Figures from Figure 7 onwards will be explained later.

[0060] Furthermore, the construction support method of this embodiment includes, at least in the rebar fabrication information creation step, a rebar fabrication information output step that creates rebar fabrication information including external dimension information, and converts the rebar fabrication information into a readable code (such as a 2D code) that can be read by a reading device (such as an optical 2D code reader) and outputs it.

[0061] Furthermore, the construction support method of this embodiment includes a length calculation step that calculates the length information of the bent reinforcing bar using the central dimension information, and a weight calculation step that calculates the weight information of the bent reinforcing bar based on the length information. "Length information of the bent reinforcing bar" is information that represents the length (total length) of the reinforcing bar. "Weight information of the bent reinforcing bar" is information that represents the weight of the reinforcing bar.

[0062] The novel parameters defined in this embodiment are information relating to the center dimensions of the bent portions (parts c and e in the example of Figure 5) in the reinforcing bar object. Specifically, the novel parameters are the center dimensions in millimeters relating to the bent portions, and various other pieces of information such as the length and weight of the reinforcing bar calculated using these center dimensions.

[0063] The bending diameter, one of the pieces of information about the bending section, is calculated using the center dimension of the reinforcing bar. Figure 7(a) schematically shows the center dimension in a U-shaped reinforcing bar object. In the example in Figure 7(a), the center dimension is represented not by a specific numerical value or symbol, but by the length of the center line C, indicated by a dashed line.

[0064] In the example shown in Figure 7(a), the reinforcing bar object 46 is composed of a central straight section (section a), left and right straight sections (sections b and d), and bent sections (sections c and e). The center dimension can be said to be the length of a hypothetical line (centerline C) passing through the center of the reinforcing bar object 46, assuming the diameter of the reinforcing bar in the object.

[0065] The dimensions of the outer surface 47 of the reinforcing bar object 46 that are outside the center line C (outer surface dimensions) are larger than the center dimensions. Figure 7(b) schematically shows the outer surface 47 with a thick line 47a. The outer surface dimensions are represented by the length of the thick line 47a that shows the outer surface 47. The reinforcing bar object 46 illustrated here has a nearly circular cross-section. Therefore, the outer surface 47 in Figure 7(b) corresponds to the ridge outside the center line C.

[0066] In Figure 7(b), the inner surface 48 of the reinforcing bar object 46, located inside the center line C, is schematically shown by the thick line 48a. The dimensions of the inner surface 48 (inner surface dimensions) are represented by the length of the thick line 48a that indicates the inner surface 48. The inner surface 48 corresponds to the ridge line located inside the center line C.

[0067] The outer surface 47 is located outside the center line C. Therefore, the outer surface dimension is larger (longer) than the center dimension. Similarly, the inner surface 48 is located outside the center line C. Therefore, the inner surface dimension is smaller (shorter) than the center dimension.

[0068] Figure 8(a) shows a magnified view of one of the bends (section c) in the reinforcing bar object 46. The length of the bend is defined as the length of the centerline Cc in the bend. The length (total length) of the reinforcing bar object 46 is defined as the length of the centerline C. The length (total length) of the reinforcing bar object 46 is expressed as the sum of the length of the centerline Ca in the central straight section, the lengths of the centerlines Cb and Cd on the left and right sides, and the lengths of the centerlines Cc and Ce in the two bends, as shown in Figure 8(b).

[0069] The length of the bent section (the length of the centerline Cc, which is the center dimension, and / or the length of the centerline Ce) is one of the pieces of information about the bent section. In this embodiment, the functions of the summary table creation unit 38 make it possible to create a summary table that does not include the bent section information (Figure 9(a)) and a summary table that includes the bent section information (Figure 9(b)).

[0070] Figure 9(a) shows an example of a summary table that does not include bending information. In the example in Figure 9(a), the "number" representing a rebar object that has the same shape as rebar object 42A in Figure 6 is "F2", and the "shape" of this F2 rebar object is represented as "C-1".

[0071] In Figure 5, the symbol F2 is also used. Figure 5 shows information about a different rebar object than the rebar object shown in Figure 9(a). Therefore, even though the symbols used are the same, the dimensions of each part of the F2 rebar object in Figure 9(a) and the F2 rebar object in Figure 5 are different.

[0072] In Figure 9(a), the rebar object (hereinafter referred to as "rebar object F2") has a dimension of a = 500 [mm]. Furthermore, the dimensions of the straight sections b and c are b = 150 [mm] and c = 150 [mm], respectively. In contrast, in Figure 5, the dimensions of the corresponding sections a, b, and d of rebar object F2 are 8,036 [mm], 673 [mm], and 1,740 [mm]. Also, in Figure 5, the bent sections c and e are defined, but in Figure 9(a), the bent sections are not defined.

[0073] In the summary table in Figure 9(a), the "length of the rebar" for rebar object F2 is 750 [mm]. The value of a+b+c related to rebar object F2 is 800 (=500+150+150) [mm]. However, the reason why the "length of the rebar" in the summary table in Figure 9(a) is 750 [mm] is to take into consideration the ease of use when using the summary table in Figure 9(a) at the construction site.

[0074] In other words, centimeters (cm) are typically used as the unit of length at construction sites. To put it another way, centimeters are the unit used for information sharing and communication among stakeholders at construction sites.

[0075] Therefore, even if the exact length of the required reinforcing bar in millimeters is, for example, 741 mm, the value used at the construction site will be rounded up to 750 mm (= 75 cm). Furthermore, if the value used at the construction site were rounded down to, for example, 740 mm (= 74 cm), it could result in insufficient length or strength of the reinforcing bar, so the rounded-up value is usually adopted.

[0076] Based on these findings, the summary table in the example of Figure 9(a) displays a value of 750 [mm] as the "length of the reinforcing bar" for reinforcing bar object F2.

[0077] The value of 750 [mm] for the "length of the reinforcing bar" has been rounded up so that the last digit of the number in millimeters is 0 (zero). Therefore, those involved at the construction site can convert from millimeters to centimeters by mentally dividing the value of 750 [mm] by 10. Thus, conversion from millimeters to centimeters is easy at the construction site.

[0078] Furthermore, the relationship between the values ​​a=500[mm], b=150[mm], and d=150[mm] for the rebar object F2 in Figure 9(a) and the value of 750[mm] for the "length of the rebar" was also determined with ease of work at the construction site in mind.

[0079] Specifically, at the construction site, a straight bar of reinforcing steel is processed using a reinforcing steel processing machine (hereinafter referred to as a "bending machine"). Various general types of bending machines can be used. When creating a U-shaped reinforcing steel based on the values ​​related to the reinforcing steel object F2 in Figure 9(a), the reinforcing steel processing is carried out so that sections a, b, and d are 500 [mm] (= 50 [cm]), 150 [mm] (= 15 [cm]), and 150 [mm] (= 15 [cm]), respectively.

[0080] Figure 10 schematically represents the information necessary for workers performing processing work. Comparing Figure 10 with Figure 7(a), the arc-shaped bends (sections c and e) in Figure 7(a) have been changed to right angles in Figure 10. As shown in Figure 10, workers can produce the desired type of reinforcing bar by recognizing the dimensions that include the bends (sections c and e) in Figure 7(a) within the straight sections (sections a to c) and performing the processing work. The numerical values ​​that workers at the construction site use during the work are the external dimensions.

[0081] As mentioned above, the external dimensions are larger than the center dimensions. Furthermore, consider a reinforcing bar object 46A, where the bent sections (parts c and e) of the reinforcing bar object 46 shown in Figure 7(a) are changed to a right-angle shape, and the bent sections are straightened as shown in Figure 10. For this reinforcing bar object 46A, the length of the reinforcing bar (external dimensions, center dimensions, and internal dimensions) is longer than that of the reinforcing bar object 46 in Figure 7(a) where the bent section is arc-shaped.

[0082] In the summary table in Figure 9(a), sections a, b, and d are 500 [mm], 150 [mm], and 150 [mm], respectively. Summing these values ​​together gives 800 (= 500 + 150 + 150) [mm].

[0083] However, the workers at the construction site prepare a straight bar of 750 mm (= 75 cm) in length (the bar before processing) according to the "bar length" value in the summary table in Figure 9(a). Furthermore, the workers at the construction site process the bar so that the outer dimensions of sections a, b, and d are 50 cm, 15 cm, and 15 cm, respectively. As a result, a U-shaped bar is produced whose actual length (total length based on the center dimension) is shorter than the sum of sections a, b, and d in the summary table, which is 800 mm, and also shorter than the "bar length" value.

[0084] Thus, the 750 [mm] value in the "Length of Reinforcement Bar" section of the summary table in Figure 9(a) was created with ease of work at the construction site in mind. Furthermore, in the summary table in Figure 9(a), the values ​​for sections a, b, and d are calculated to be larger than the actual lengths of each section of the reinforcement bar being manufactured, taking into account the length of the bent section (length of the bent section based on the center dimension) calculated based on a predetermined formula.

[0085] The summary table in Figure 9(b) displays more accurate dimensional information compared to the summary table in Figure 9(a), which prioritizes convenience at the construction site. In the example in Figure 9(b), the "shape" of the rebar object F2 in Figure 9(a) is "C-1," the same as in Figure 9(a). Hereafter, the rebar object in Figure 9(b) whose "shape" symbol is displayed as "C-1" will be referred to as "rebar object C-1" to distinguish it from the rebar object F2 in the summary table of Figure 9(a).

[0086] In the summary table in Figure 9(b), the symbols a to e assigned to each part of the reinforcing bar object C-1 are the same as the symbol assignments shown in Figure 5. Specifically, the central straight section is designated as part a, the left and right straight sections as parts b and d, and the bent sections as parts c and e.

[0087] In the summary table for the example in Figure 9(b), the dimension of section a of rebar object C-1 is a = 409 [mm]. Furthermore, the dimensions of sections b and d of rebar object C-1 are b = 105 [mm] and d = 105 [mm]. The dimensions of sections c and e, which are the bent sections, are c = 61 [mm] and e = 61 [mm].

[0088] The following formula (1) is used to calculate the length of the bent section (sections b and d) in the family of rebar object C-1. In the example in Figure 9(b), the diameter of the rebar object C-1 is 13 [mm]. (Length of the bent section) = 1.5 × π (pi) × (rebar diameter) ... Equation (1)

[0089] Substituting the diameter value of 13 mm into equation (1), the length of the bent section (length of section b = length of section d) is 1.5 × π (= 3.14) × 13 = approximately 61.23. Rounding the resulting value to the nearest whole number, the value is 61 mm, and this value is displayed in columns "c" and "e" of the summary table in Figure 9(b).

[0090] Note that the formula for calculating the length of the bent section (length of section c and section d) may differ depending on the family of the reinforcing bar.

[0091] In the example in Figure 9(b), the value of a+b+c+d+e in rebar object C-1 is 741 (=409+105+61+105+61) [mm]. While this calculated value is 741 [mm], the displayed "rebar length" is 750 [mm]. This is because the calculated "rebar length" value has been rounded up so that the last digit of the millimeter value is 0 (zero).

[0092] Thus, by using the values ​​of the bends displayed in the summary table in Figure 9(b), a more accurate "length of the reinforcing bar" can be calculated. The information on the bends (sections c and e) (bending information) is obtained by incorporating a routine into the BIM program that performs calculations using mathematical formulas such as Equation 1, and the reinforcing bar information calculation unit 39 (Figure 4) performs the calculations.

[0093] The BIM program contains formulas for the bending of reinforcing bars in various families. For example, a designer can select a family and enter a value for the "diameter" to calculate the bending information. Then, by entering values ​​for other parameters related to the reinforcing bar object (in this case, reinforcing bar object C-1) (lengths of sections a, b, and d), a more accurate "length of the reinforcing bar" can be calculated.

[0094] The BIM program calculates information on various rebar objects (3D model information, rebar fabrication information, center dimension information, external dimension information, etc.) using the method described above. Furthermore, the BIM program combines the information on various rebar objects and other "category" information to create a 3D model of the project (Figure 2).

[0095] To accurately calculate and display the length of reinforcing bars, it is effective to perform calculations using the center dimension, as in this embodiment. However, at the construction site related to construction section 14 (Figure 1), the process of calculating the distance from the center line by halving the reinforcing bar diameter, and then subtracting or adding the calculated value to the dimensions given in the summary table, etc., to accurately determine the required length of reinforcing bar is cumbersome for workers and reduces work efficiency. For this reason, it is difficult to perform work based on the center dimension of the reinforcing bar at the construction site, and work based on the outer dimension, which is relatively easier to perform, is carried out instead.

[0096] Furthermore, if the summary sheet provided to the construction site (Figure 9(a)) indicates that construction must take into account the length of the bend, then the construction site will need to perform cumbersome verification work using rebar diameter and pi, increasing the possibility of human error.

[0097] Furthermore, in the reinforcement drawings (Figure 2) that serve as the basis for creating the summary tables, the bent sections are often not shown in the drawings. Also, in 3D models, they may be hidden in the projection direction and not visible unless the viewpoint of the 3D model is changed. For these reasons, it is difficult to calculate the center dimensions of the bent sections retrospectively.

[0098] However, as in the construction support system 10 of this embodiment, by generating information on rebar objects using the center dimension of the bend as a parameter in the data supply unit 12, which is the upstream of the information, it becomes possible to create accurate information on rebar objects in a unified manner without having to determine the dimensions of the bend from a 3D model or have the dimensions of the bend calculated by the rebar processing company.

[0099] <Using 2D codes> The BIM program converts information about the rebar object into a 2D code that operates the bending machine. The 2D code created by the BIM program is printed on a management tag (picture tag) and attached (or affixed) to the straight rebar product before bending. The 2D code printed on the management tag is read by, for example, an optical 2D code reader and input into the bending machine as processing information. The bending machine operates based on the input processing information and bends the straight rebar to produce rebar of the desired shape.

[0100] <Estimate of weight and price> Furthermore, the BIM program calculates the weight of the reinforcing bars using information on "reinforcing bar length" and "diameter," including information on the length of the bend based on the center dimension, as shown in the summary table in the example in Figure 9(b). The weight of the reinforcing bars can be determined by the following formula (2). The specific gravity of steel, the material of the reinforcing bars, is approximately 7.85. π / 4 × (diameter [mm]) 2 × (Length of rebar [mm]) × (Specific gravity of rebar material) × 10 6 ...Equation (2)

[0101] This type of rebar weight calculation can be performed for all rebar used in the 3D model. Therefore, by calculating and summing the weights of all the rebars subject to the weight calculation, the total weight of multiple rebars can be calculated. Furthermore, by multiplying the calculated weight by the unit price of the material (price per unit weight), the price of the rebar in question can be calculated. Since these calculations are performed using accurate bending information, it is possible to calculate more accurate estimated weights and estimated prices.

[0102] <Classification of reinforcing bar objects based on tolerance for change> The BIM program in this embodiment has a function to calculate the length and weight of reinforcing bars using the center dimension of the bent reinforcing bar (Figure 7(a)). It is designed to handle multiple types of reinforcing bar objects with different tolerances for dimensional changes.

[0103] Figures 11(a) to (c) schematically show the classification of reinforcing bar objects based on the tolerance of modification. In this embodiment, the construction support method performed using a BIM program includes, as shown in Figure 11(a), a first and second bent reinforcing bar family in the 3D model of the bent reinforcing bar, which can constitute the project.

[0104] "Project" is a model of the target building. "First Bent Reinforcement Family" and "Second Bent Reinforcement Family" are families related to bent reinforcement that are classified as different families from each other.

[0105] The first bending reinforcement family is shared across multiple projects, as shown in Figure 11(b). In Figure 11(b), the first bending reinforcement information 1 is used in common between Project 1 and Project 2, which are different projects. For example, if the same U-shaped reinforcement (e.g., the reinforcement shown in Figure 7(a)) is used in a beam-column connection project (or the beam-column connection shown in Figure 3(a)), this is an example of the first bending reinforcement family being shared across multiple projects. The "second bending reinforcement family" may include those that cannot be shared across multiple projects.

[0106] "First Bending Reinforcement Information 1" refers to one of the First Bending Reinforcement Information items included in the First Bending Reinforcement Family. In other words, as shown in Figure 11(a), the First Bending Reinforcement Family contains First Bending Reinforcement Information related to at least one bending reinforcement. In the example in Figure 11(a), the First Bending Reinforcement Family includes First Bending Reinforcement Information 1 to First Bending Reinforcement Information 3. The number of First Bending Reinforcement Information types may be two or fewer, or four or more.

[0107] The second bending reinforcement family also includes second bending reinforcement information relating to at least one bending reinforcement. In the example in Figure 11(a), the second bending reinforcement family includes second bending reinforcement information 1 to second bending reinforcement information 3. The number of types of second bending reinforcement information may be two or fewer, or four or more.

[0108] For the first bending reinforcement information (first bending reinforcement information 1 to first bending reinforcement information 3 in the example of Figure 11(a)), the center dimension of the bend in the bending reinforcement can be set within the range constrained by a formula based on the reinforcement diameter.

[0109] "Center dimension of the bend" refers to the center dimension of the bend in the bend of the reinforcing bar (e.g., sections c and e in Figure 7(a)) (e.g., the length of the center line Cc and the length of the center line Ce in Figure 8(b)). "Formula based on reinforcing bar diameter" refers to a formula that uses the reinforcing bar diameter as a parameter (e.g., formula (1) "(length of the bend) = 1.5 × π (pi) × (reinforcing bar diameter)"). "Can be set within the range constrained by the formula" means that it is constrained to a range that can be obtained by substituting arbitrary values ​​into the parameters (reinforcing bar diameter, etc.) of the various formulas.

[0110] Regarding the second type of bent reinforcement information, the center dimension of the bend in the bent reinforcement can be set arbitrarily. "The center dimension of the bend can be set arbitrarily" means that the center dimension of the bend can be defined by arbitrarily entering a numerical value without being restricted by a predetermined formula (such as formula (1)). It is possible to directly input an arbitrary value for the "center dimension of the bend".

[0111] The mathematical formula (such as formula (1)) includes at least pi (π) as a constant, and pi is used to at least two decimal places (up to 3.14).

[0112] For projects related to the first bent rebar family, for example, it is possible to arbitrarily change the dimensions of the straight sections (straight portions) of the rebar (first bent rebar information) in the rebar arrangement diagram shown in Figure 3(a) (or Figure 3(b)) by dragging with the mouse while viewing the screen. Furthermore, for example, it is possible to arbitrarily change the dimensions of the straight sections (straight portions) of the rebar object 42A, as shown in Figure 6, by dragging with the mouse or by entering numerical values ​​for the straight sections in the parameter table 42B. However, the length dimension of the bent section cannot be changed from the range constrained by the aforementioned formula. The formula differs depending on the rebar diameter.

[0113] "Projects related to the first bent rebar family" refers to multiple projects that can share the first bent rebar family (first bent rebar information 1 to first bent rebar information 3 in the example of Figure 11(a)). "While displaying on the screen" means while displaying the modeling content on the display unit 35 (Figure 4), etc., so that it can be visually confirmed. "Straight section" refers to the straight part of the rebar (sections a, b, and d in Figure 7(a)).

[0114] "Arbitrarily changeable" for the dimensions of the straight section means that the dimensions (length) of the "straight section" can be extended or contracted to any value without being constrained by a mathematical formula (such as formula (1)). "Length dimension of the bent section" means the length dimension expressed as the center dimension of the bent section. "The length dimension of the bent section cannot be changed from the range constrained by the mathematical formula" means that, with respect to the project section relating to the first bent reinforcement family, the length of the straight section can be arbitrarily changed, but the length dimension of the bent section is constrained by the mathematical formula.

[0115] <Advantages of the invention related to the construction support system 10> As described above, with the construction support system 10 of this embodiment, information on rebar objects (such as rebar manufacturing information and external dimension information) created by a BIM program in the data supply unit 12 is used in the construction unit 14 and the processing unit 16. Furthermore, the information on the rebar objects is adjusted to the necessary values ​​and units in the data supply unit 12, the construction unit 14, and the processing unit 16 before being supplied.

[0116] The dimensions of the bend can be represented by the center dimension in the data supply unit 12 (Figure 1). The length of the reinforcing bar is then represented numerically, including the center dimension of the bend. As a result, the information on the length of the reinforcing bar is accurately represented, and accurate information regarding the length of the reinforcing bar can be provided to the construction unit 14. Therefore, it becomes possible to provide accurate information based on the center dimension.

[0117] Furthermore, the data supply unit 12 can provide the construction unit 14 with information regarding the length of the reinforcing bars, both expressed by their center dimensions and their outer dimensions. Therefore, the construction unit 14 and the processing unit 16 do not need to manually convert the information obtained from upstream into the necessary information. This enables consistent data exchange from the design to the manufacturing of the reinforcing bars, free from human error.

[0118] Furthermore, the information on the rebar objects created in the data supply unit 12 includes information on the length of the bend, calculated in millimeters. Therefore, it is possible to perform various simulations accurately based on accurate information regarding the length of the rebars. For example, it becomes possible to accurately check for interference between rebars in rebar arrangement drawings (e.g., Figures 3(a) and (b)) and to make various estimates related to the rebars. Accurate estimates can be made in the data supply unit 12. In addition, by providing accurate information regarding the length of the rebars from the data supply unit 12 to the construction unit 14, the construction unit 14 can also make accurate estimates. Therefore, the construction unit 14 does not need to place orders that may include excessive surplus in the processing unit 16, and costs can be reduced.

[0119] Furthermore, as shown in Figures 11(a) to (c), different types of rebar objects can be created depending on the tolerance for modification, allowing for the creation of 3D models in a variety of ways.

[0120] Based on these findings, the invention relating to the construction support method, construction support program, and construction support device 30 of this embodiment makes it possible to develop the digital twin concept, which reproduces real space on a virtual space (digital space), into something more useful and practical.

[0121] The embodiments described above are merely examples of how the invention relating to the construction support system 10 can be implemented, and the technical scope of the invention should not be interpreted as being limited by these embodiments. In other words, the invention relating to the construction support system 10 can be implemented in various forms without departing from its gist or its main features.

[0122] For example, in the example shown in Figure 1, various types of information (such as processing logs and 2D codes) are provided from the data supply unit 12 to the processing unit 16 via the construction unit 14. However, the data supply unit 12 may be configured to provide various types of information to the processing unit 16 without going through the construction unit 14.

[0123] <Reinforcement Bar Delivery Support System 60> Next, a rebar delivery support system (such as the rebar delivery support system 60 shown in Figure 12) that utilizes the invention related to the construction support system 10 will be described. One aspect (also called a side) of the rebar delivery support system is a rebar delivery support system used to deliver rebar used in the construction of a building to the construction site, From the reinforcement drawing showing the arrangement of the reinforcement bars, reinforcement processing information related to the processing of the reinforcement bars is created. This is a rebar delivery support system that processes the rebars required for multiple construction phases specified in the construction schedule based on the rebar processing information and delivers them to the construction site.

[0124] A "structure" can be anything constructed using reinforcing steel, and various types are applicable. A "reinforcement drawing" is a diagram showing the arrangement of reinforcing steel in a reinforced concrete member, and is also called a detailed reinforcement drawing. Figure 13 shows an example of a reinforcement drawing. In the example in Figure 13, reference numeral 62 indicates the structural frame of the building. Reference numeral 64 indicates the main reinforcement, and reference numeral 66 indicates the stirrups.

[0125] Reinforcement drawings are drawn as one of the structural drawings. The scale of reinforcement drawings is generally around 1 / 50 to 1 / 5. Also, when the scale is small and the drawing is detailed (around 1 / 50 to 1 / 30), the diameter of the reinforcing bars is generally not shown. When creating reinforcement drawings, the creator often has an idea of ​​the diameter of the reinforcing bars in mind, but does not show the diameter, instead representing the reinforcing bars with "lines and symbols". Here, information such as the length of the reinforcing bar before processing (total length), the diameter of the reinforcing bar, and the radius of the bend (information necessary for processing) is required, but this information is not specifically written or written in a way that is easy to understand. This is the same for both so-called design drawings and common drawings.

[0126] Reinforcement drawings are often created for locations in a structure where reinforcing bars intersect (joints between members). Specifically, examples include joints between columns and beams, joints between beams and additional concrete layers, and joints between beams and slabs.

[0127] There are several types of reinforcement drawings, such as reinforcement drawings used as structural design drawings and reinforcement drawings used as construction drawings. Reinforcement drawings used as construction drawings are sometimes created with a scale of 1 / 1. In this embodiment, any type of reinforcement drawing may be used. However, the more information that is missing for rebar fabrication, the more difficult it becomes to determine information such as the shape of the rebar based on the reinforcement drawing.

[0128] Here, the construction support device 30 (Figure 4) of the construction support system 10 is equipped with a function to create reinforcement drawings, as shown in the reinforcement drawing creation unit 37. However, the reinforcement drawings created by the construction support device 30 are created based on a 3D model (created reinforcement drawings), as shown in Figure 2. In contrast, the reinforcement drawings used in the reinforcement delivery support system 60 are reinforcement drawings provided by the client, etc. (received reinforcement drawings). In the reinforcement delivery support system 60, information such as the diameter, shape, and number of reinforcing bars is determined based on the reinforcement drawings (received reinforcement drawings). Then, a 3D model (3D model information) is created based on this determined information. The reinforcement delivery support system 60 can use the construction support device 30 (Figure 4) of the construction support system 10. In this case, the construction support device 30 (Figure 4) functions as a reinforcement delivery support device. The creation of the 3D model can be done manually by the operator of the construction support device 30 or automated. The process of creating 3D models through automation will be described later as a method for creating 3D model information through automation.

[0129] "Reinforcement bar processing" refers to processes such as bending straight reinforcing bars to change their shape into various forms necessary for building construction.

[0130] "Reinforcement bar processing information" is information necessary for processing reinforcement bars into the desired shape, and corresponds to the "reinforcement bar manufacturing information" related to the aforementioned construction support system 10 (Figures 1 to 11). In other words, "reinforcement bar processing information" is a rephrasing of the "reinforcement bar manufacturing information" related to the aforementioned construction support system 10 (Figures 1 to 11) when explaining the reinforcement bar delivery support system 60. For this reason, "reinforcement bar processing information" can also be rephrased as "reinforcement bar manufacturing information."

[0131] The "construction schedule" is a chronological plan outlining the construction of a building. The "multiple construction periods defined in stages in the construction schedule" refers to the periods from May 10th to June 20th, 2022, and from June 21st to July 20th, 2022, in a construction schedule where, for example, one process (referred to here as "Process 1") is planned to be carried out from May 10th to June 20th, 2022, and another process (referred to here as "Process 2") is planned to be carried out from June 21st to July 20th, 2022.

[0132] Furthermore, the multiple construction periods specified in the construction schedule may overlap in some parts, for example, from May 10th to June 20th, 2022, and from April 25th to July 10th, 2022. Alternatively, they may be discontinuous, for example, from May 10th to June 20th, 2022, and from July 1st to July 20th, 2022.

[0133] Furthermore, "multiple" may refer to three or more. In addition, "multiple construction periods specified in stages in the construction schedule" may refer to specific dates. For example, for Stage 1, it could be May 10, 2022, or May 20 of the same year, midway through the period, and for Stage 2, it could be June 21 of the same year, or July 15 of the same year.

[0134] Another aspect of the rebar delivery support system involves creating rebar processing information related to the processing of the rebar from a reinforcement drawing showing the arrangement of rebar used in the construction of a building. A rebar delivery support system that delivers the rebars required for multiple construction periods specified in stages in the construction schedule to the construction site of the building, based on the rebar processing information, A data supply unit capable of supplying the aforementioned rebar processing information to an external source, A processing unit that processes the reinforcing bars based on the reinforcing bar processing information supplied from the data supply unit, The construction section includes a section into which the reinforcing bars processed by the processing section are delivered, The aforementioned data supply unit is Based on the reinforcement drawing information, which is the information from the reinforcement drawing, a 3D model information of the reinforcement is created. Based on the three-dimensional model information, the rebar processing information is created. The aforementioned rebar processing information is stored, Multiple pieces of construction time information indicating the aforementioned construction time are stored, Based on the aforementioned construction timing information, the rebar processing information is supplied to the processing unit in accordance with the aforementioned construction timing. The aforementioned processing section is The reinforcing bars are processed in accordance with the aforementioned construction period. The processed reinforcing bars are delivered according to the construction schedule. This is a system to support the delivery of reinforcing bars.

[0135] "Building," "reinforcement drawing," "reinforcement processing," "reinforcement processing information," and "multiple construction periods specified in stages in the construction schedule" have the same meaning as described above. The "data supply unit" supplies reinforcement processing information to an external party (such as a processing unit). The data supply unit 12 in the example in Figure 1 can be applied to the data supply unit. Examples of the data supply unit 12 include information systems companies and architectural design offices. In the reinforcement delivery support system 60, the construction support device 30 (Figure 4) of the construction support system 10 can be used as a reinforcement delivery support device provided in the data supply unit 12.

[0136] The "supply" of data may be carried out via a communication network similar to that described for the construction support system 10 (Figures 1 to 11), or it may be carried out via a portable storage medium (such as a USB memory stick) that stores rebar processing information.

[0137] The "processing unit" processes the reinforcing bars using reinforcing bar processing information such as 2D codes created by the data supply unit. The processing unit 16 in the example in Figure 1 can also be applied to the processing unit. Examples of the processing unit include reinforcing bar processing companies.

[0138] In the construction support system 10 shown in Figure 1, the processing unit 16 receives an order from the construction unit 14, performs bending of the reinforcing bars, and delivers the manufactured reinforcing bars to the construction unit 14. In contrast, the processing unit 16 in the reinforcing bar delivery support system 60 (Figure 12) performs processing of the reinforcing bars using reinforcing bar processing information supplied from the data supply unit 12.

[0139] In this case, the data supply unit 12 will have functions for both the construction support system 10 (Figure 1) and the rebar delivery support system 60 (Figure 12). When the data supply unit 12 functions as the rebar delivery support system 60 (Figure 12), it will supply rebar processing information related to the rebar delivery support system 60 to a rebar processing company that is capable of functioning as a processing unit related to the rebar delivery support system 60.

[0140] The "construction department" refers to the construction site where the building to be constructed (the target building) is being constructed. The construction department 14 in the example in Figure 1 can also be applied to the construction department. In the construction support system 10 in the example in Figure 1, the construction department 14 places orders with the processing department 16, but in the rebar delivery support system 60 in Figure 12, the construction department 14 does not need to place orders with the processing department 16.

[0141] The delivery of reinforcing bars to the construction department 14 may be carried out by the processing department 16 directly transporting the processed reinforcing bars to the construction department 14, or by the processing department 16 ordering the transportation of the processed reinforcing bars from a transportation company and having the transportation company handle the delivery. In the reinforcing bar delivery support system 60, attribute information such as the name of the construction department 14 and its location (address) is provided from the data supply department 12 to the processing department 16. In addition, in the example in Figure 12, a delivery department 18 is provided, and the delivery department 18 includes a transportation company.

[0142] The data supply unit 12 obtains the "reinforcement drawing" and creates reinforcement drawing information, which is information about the reinforcement drawing. The "reinforcement drawing information" is information that is written on the reinforcement drawing and can be read from the reinforcement drawing. The reinforcement drawing information is stored in the storage unit 32 of the data supply unit 12. The creation of the reinforcement drawing information can be done manually by the operator of the construction support device 30 (refer to Figure 4) or automated. The creation of the reinforcement drawing information will be described later.

[0143] The data supply unit 12 creates 3D model information of the reinforcing bars based on the reinforcement drawing information. The "3D model information" of the reinforcing bars can use the same information as the 3D model information in the construction support system 10. More specifically, the 3D model information includes various parameters of the reinforcing bars and calculated values ​​calculated using those parameters. Furthermore, examples of reinforcing bar parameters include a number for identifying the reinforcing bar, the diameter of the reinforcing bar, its shape, and the length of each part. Examples of calculated values ​​calculated using the parameters include the total length of the reinforcing bar, the length of each part, and the weight per reinforcing bar.

[0144] Furthermore, the 3D model information can include the number of reinforcing bars used and the total weight of the required number of reinforcing bars (rebar weight). In addition, the number of reinforcing bars and the total weight of the required number of reinforcing bars (rebar weight) can be calculated according to the reinforcing bar number, shape, and diameter.

[0145] Furthermore, the length information for each part in the 3D model includes information on the radius and length of the bend in the reinforcing bar. In addition, the length information for each part also includes information on the center dimension and the outer dimension. The 3D model information is also used to create reinforcing bar fabrication information. This fabrication information is created based on the information contained in the 3D model information.

[0146] The data supply unit 12 stores rebar processing information and construction timing information. The storage unit 32 of the construction support device 30 (Figure 4) can be used to store the rebar processing information and construction timing information, but other storage devices (not shown) can also be used. "Construction timing information" is the information indicating the construction timing as described above.

[0147] Reinforcement bar processing information is supplied from the data supply unit 12 to the processing unit 16 in accordance with the construction schedule. The phrase "Based on the construction schedule information, the data supply unit 12 supplies the reinforcement bar processing information to the processing unit 16 in accordance with the construction schedule" means that the data supply unit 12 supplies the reinforcement bar processing information to the processing unit 16 so that the processed reinforcement bars (hereinafter referred to as "processed reinforcement bars") are delivered to the construction unit 14 by the date (or time) indicated by the construction schedule information. The supply of reinforcement bar processing information by the data supply unit 12 to the processing unit 16 is performed on the date (or time) indicated by the processing order date information (processing order date information). The processing order date is a date determined considering the time required for the processing unit 16 to prepare the specified number of reinforcement bars.

[0148] The processing unit 16 processes the reinforcing bars in accordance with the construction schedule, and the processed reinforcing bars are delivered in accordance with the construction schedule. The period from when the data supply unit 12 supplies reinforcing bar processing information to the processing unit 16 until when the processed reinforcing bars are delivered to the construction unit 14 includes the time required for the processing unit 16 to receive the reinforcing bar processing information, process the reinforcing bars, arrange for delivery, and move the processed reinforcing bars from the processing unit 16 to the construction unit 14.

[0149] In the rebar delivery support system 60, the data supply unit (in this case, the data supply unit 12) Select the reinforcing bars required for the construction period indicated by the construction period information above. Output the processing instruction information for the selected reinforcing bar. The system outputs instructions for delivering the reinforcing bars, which have been processed based on the processing instruction information, to the construction department.

[0150] The data supply unit 12 selects the reinforcing bars required for each construction period from among the reinforcing bars necessary for the building. Construction period information and the required reinforcing bars are linked as shown in the diagrams in Figures 14(a) and (b), and the reinforcing bar processing information related to the reinforcing bars linked to the construction period information is selected and stored. In the example in Figures 14(a) and (b), the information "process," "start," and "end" correspond to the construction period information. "Type of reinforcing bar" and "number of bars" correspond to the reinforcing bar processing information. Figures 14(a) and (b) will be explained later.

[0151] The data supply unit 12 outputs processing instruction information to the processing unit 16 via the communication network. The processing unit 16 receives the processing instruction information from the data supply unit 12 and operates the rebar processing machine (referencing reference numeral 17 in Figure 1) based on the processing instruction information. The rebar processing machine 17 bends the straight rebar before processing to produce rebar of the desired shape and dimensions.

[0152] The delivery instruction information output from the data supply unit 12 indicates that the construction unit 14 should deliver the processed reinforcing bars by the date (or time) on which the processed reinforcing bars are required. The delivery instruction information can be included in the construction timing information. For example, the information on the start date of the construction period can also be used as delivery instruction information. Furthermore, the delivery instruction information can also be included in the processing instruction information.

[0153] In the rebar delivery support system 60, the 3D model information includes 3D model information of bent rebars. As parameters for the three-dimensional model of the bent reinforcing bar, the center dimension information of the bent reinforcing bar in millimeters and the outer dimension information in units larger than millimeters are used. When creating the three-dimensional model information for the bent reinforcing bar, it is possible to create the three-dimensional model information including the center dimension information.

[0154] As mentioned above, the length information of each part in the 3D model information includes information on the radius of the bend in the reinforcing bar and information on the length of the bend. Furthermore, the length information of each part also includes information on the center dimension and the outer dimension. The center dimension and outer dimension can be the same as those described in the construction support system 10.

[0155] In the rebar delivery support system 60, when creating the rebar processing information, the rebar processing information is created including the external dimension information. The aforementioned rebar processing information is converted into a readable code that can be read by a reading device and output.

[0156] The creation of rebar processing information is performed by the data supply unit 12. Rebar processing information corresponds to "rebar fabrication information" in the construction support system 10. The rebar processing information is converted into a readable code (such as a 2D code) that can be read by a reading device (such as an optical 2D code reader) and output.

[0157] <Information managed by the data supply unit 12> Figures 14(a) and (b) schematically show a list of information managed by the data supply unit 12. Figure 14(b) shows the contents of the list that follow to the right of Figure 14(a). Figure 14(a) shows the contents to the left of "Delivery Time," and Figure 14(b) shows the contents to the right of "Delivery Time."

[0158] In Figure 14(a), the "Project Name" on the far left indicates the name of the construction work related to the building. In the example in Figure 14(a), the project name is abbreviated as "...Construction Work". In Figure 14(a), the "Construction Site" indicates the location where the construction of the building will take place (location of construction section 14). In the example in Figure 14(a), the construction site is abbreviated as "...".

[0159] The "reinforcement drawing file name" indicates the name of the data file containing the reinforcement drawing information used to create the 3D model. In the example in Figure 14(a), only "reinforcement drawing 001" and "reinforcement drawing 002" are shown as example reinforcement drawing file names, and other reinforcement drawing files are omitted.

[0160] The "3D model file name" indicates the name of the data file containing information about the 3D model created based on the reinforcement drawings. In the example in Figure 14(a), the 3D model file name is abbreviated as "...Construction 3D Data".

[0161] "Process" refers to a process divided into multiple construction periods defined in stages in the construction schedule. "Start" indicates the start date (scheduled date) of each process, and "End" indicates the end date (scheduled date) of each process. In the example in Figure 14(a), Process 1 is scheduled to be carried out from May 10, 2022 to June 20, 2022, Process 2 is scheduled to be carried out from June 21, 2022 to July 20, 2022, and Process 3 is scheduled to be carried out from July 21, 2022 to August 10, 2022. Other processes are omitted.

[0162] "Delivery Date" indicates the date on which the reinforcing bars are delivered to construction section 14. "Delivery Time" indicates the delivery time on the delivery date. In the example in Figure 14(a), for example, it is shown that for process 1, the specified reinforcing bars will be delivered at 10:00 on May 10, 2022.

[0163] The "Type of Reinforcement" shown in Figure 14(b) indicates the type of reinforcement to be delivered to the construction section 14, and the "Number" indicates the number of reinforcement bars of that type delivered. In the example in Figure 14(b), for example, for process 1, it is shown that 200 bars of type "A-1", 100 bars of type "A-2", and 50 bars of type "C-1" will be delivered. The "Type of Reinforcement" information corresponds to the symbol that identifies the reinforcement object (the "Number" symbol in Figures 5 and 9(a)). Although not shown in the illustration, this "Type of Reinforcement" information is linked to the "Shape" information in Figures 5 and 9(b), and the "Shape" information can be found from the "Type of Reinforcement" information.

[0164] "Processor" refers to the rebar processing company that will be processing department 16. In the example in Figure 14(b), the processor is abbreviated as "·· Manufacturing." "Processing order date" is, as mentioned above, the date determined considering the time required for processing department 16 to prepare the specified number of rebars. In the example in Figure 14(b), the processing order date is shown as April 10, 2022.

[0165] "Processing instructions submitted" indicates whether or not the processing instructions for the reinforcing bars required for the corresponding process have been sent. In the examples in Figures 14(a) and (b), it is shown that the processing instructions for process 1 have been sent, but the processing instructions for process 2 and beyond have not yet been sent.

[0166] "Supplier" refers to the transport company requested to deliver the processed reinforcing bars. In the example in Figure 14(b), the supplier is abbreviated as "...transportation". The supplier may also be the reinforcing bar processing company, which is the processing department 16. "Delivered" indicates whether or not the reinforcing bars required for the corresponding process have been delivered to the construction department 14. In the examples in Figures 14(a) and (b), it is shown that the delivery corresponding to process 1 has been completed, but the deliveries corresponding to process 2 and beyond have not yet been made.

[0167] The "Project Name" information shown in Figure 14(a) is building identification information that identifies the structure. The "Project Location" information is construction location identification information that identifies the construction site. The information identified by the "Reinforcement Drawing File Name" is reinforcement drawing information. The information identified by the "3D Model File Name" is 3D model information. The "Process," "Start," and "End" information is construction timing information. The "Delivery Date" and "Delivery Time" information is delivery instruction information. The "Type of Reinforcement" and "Number of Reinforcements" information shown in Figure 14(b) is reinforcement processing information. The "Processor" and "Processing Order Date" information is processing instruction information. The "Supplier" information is delivery instruction information.

[0168] Here, Figures 14(a) and (b) show only a portion of the information managed by the data supply unit 12, and information other than that shown in Figures 14(a) and (b) is also used in relation to the processing and delivery of reinforcing bars. Furthermore, it is possible to combine the information shown in Figures 14(a) and (b), as well as multiple pieces of information not shown, as appropriate to construct building identification information, construction site identification information, reinforcement drawing information, 3D model information, construction period information, reinforcing bar processing information, delivery instruction information, and processing instruction information, etc.

[0169] <Support Method for Reinforcement Bar Delivery> In the rebar delivery support system 60, the following rebar delivery support method is performed (executed). The rebar delivery support method includes a step of storing multiple construction timing information related to the construction schedule of the building, The process of selecting the reinforcing bars required for the construction period indicated by the aforementioned construction period information, A step of outputting processing instruction information for the selected reinforcing bar, The process includes outputting delivery instruction information for the reinforcing bars processed based on the processing instruction information.

[0170] The storage of "construction period information," the output of "processing instruction information," and the output of "delivery instruction information" are the same as those previously described for the rebar delivery support system 60.

[0171] The flowchart in Figure 15 more specifically illustrates the rebar delivery support method performed in the rebar delivery support system 60. In the rebar delivery support method, a 3D model is created in the data supply unit 12 based on the reinforcement drawing (S (Step) 1).

[0172] The creation of 3D model information in the data supply unit 12 can be manually input into the construction support device 30 by the operator of the construction support device 30 via the operation unit 34 (refer to Figure 4).

[0173] However, this is not the only option; it is conceivable to automate the creation of 3D model information as much as possible. In automating the creation of 3D model information, it is conceivable to store previously created 3D model information, reinforcement drawings (created reinforcement drawings), and reinforcement drawings used in the past (received reinforcement drawings) in the database 68 shown in Figure 16, and use the relationship between various reinforcement drawings and the corresponding 3D model information as training data (teaching data). In Figure 16, the symbol CN indicates a communication network such as the Internet. Regarding the database 68, it is possible to connect it to the construction support device 30 via the communication network CN, or to omit the hardware of the database 68 and store the information of the database 68 in the construction support device 30.

[0174] In creating new 3D model information, the information from the newly provided reinforcement drawings (received reinforcement drawings) (new reinforcement drawing information) is input into the construction support device 30. The input of the new reinforcement drawing information is done, for example, by reading the reinforcement drawing data provided via a communication network or USB memory into the construction support device 30. However, it is not limited to these methods; for example, a paper reinforcement drawing may be converted into raster data using a scanner, and the raster data may be converted into vector data to create the reinforcement drawing information.

[0175] The data supply unit 12 can determine the degree of similarity between new reinforcement drawing information and a large number of past reinforcement drawing information, and select past reinforcement drawing information with a relatively high degree of similarity. When selecting past reinforcement drawing information, one example is to select the data that approximates with the highest frequency (the data with the highest degree of similarity) using general statistical information processing, and then use the past 3D model information corresponding to this reinforcement drawing information as new 3D model information.

[0176] Furthermore, it is possible to select multiple pieces of reinforcement drawing information with a high degree of similarity, display past 3D model information corresponding to these reinforcement drawing pieces as selection candidates, and allow the operator of the construction support device 30 to make a selection.

[0177] Furthermore, information processing such as automatically determining 3D model information and displaying selection candidates can be performed using the functions of artificial intelligence (AI).

[0178] Next, as shown in S2 of Figure 15, the data supply unit 12 determines multiple construction dates related to the construction schedule of the building based on the 3D model (S2), and construction date information is created. The created construction date information is stored in the storage unit 32 (S3).

[0179] The timing of the S2 construction can be determined through consultation between the personnel of the data supply unit 12 and the personnel of the construction unit 14, but it is not limited to this method, and it can also be determined automatically using the construction support device 30, etc.

[0180] The automatic determination of the construction period can be performed, for example, as follows: First, construction records of past buildings and structures are stored in database 68 (Figure 16). Next, construction record data that matches the conditions of the current building (or approximates it with the highest frequency using general statistical information processing) is retrieved and applied to the start date of construction to determine the construction period. It is also possible to perform such information processing using the functions of artificial intelligence.

[0181] Next, the amount of reinforcing steel required for the construction period indicated by the construction period information is determined (S4), and processing instruction information for the determined reinforcing steel, along with the reinforcing steel processing information, is output from the data supply unit 12 to the processing unit 16 (S5). Furthermore, delivery instruction information for the reinforcing steel processed based on the processing instruction information is output from the data supply unit 12 to the processing unit 16 (S6), and the processed reinforcing steel is delivered to the construction unit 14 (S7).

[0182] Here, the delivery instruction information can be included in the construction timing information and / or processing instruction information, as described above. In this case, the processing instruction information will be output when the construction timing information and / or processing instruction information is output from the data supply unit 12 to the processing unit 16 (S5).

[0183] <Advantages of the invention related to the rebar delivery support system 60> As described above, the rebar delivery support system 60 of this embodiment makes it possible to service the process from creating the information necessary for processing rebar to managing the delivery of rebar through information processing technology. For example, a construction site can simply provide a rebar layout drawing to a service provider via the internet or the like and request the delivery of rebar, and the rebar will be delivered to the construction site just in time to coincide with the construction period. This makes it possible to start a service business or launch an enterprise that provides such a service.

[0184] Furthermore, it eliminates the need to communicate information such as the shape, diameter, and number of reinforcing bars required for construction to rebar fabricators based on reinforcement drawings and structural design drawings at the construction site, as well as the need to manage ordering timings at the construction site. Therefore, the burden of rebar procurement at the construction site can be reduced. This enables labor savings, more effective use of human resources, and shorter construction periods at the construction site.

[0185] Furthermore, by including a data supply unit 12, a construction unit 14, and a processing unit 16 in the rebar delivery support system 60, the data supply unit 12 can act as a service provider.

[0186] Furthermore, the data supply unit 12 creates 3D model information of the reinforcing bars, creates reinforcing bar processing information based on the 3D model information, and stores the reinforcing bar processing information and construction timing information. Based on the construction timing information, the data supply unit 12 supplies the reinforcing bar processing information to the processing unit 16 in accordance with the construction timing. The processing unit 16 processes the reinforcing bars in accordance with the construction timing, and the processed reinforcing bars are delivered in accordance with the construction timing.

[0187] Therefore, the data supply unit 12 can provide services such as obtaining reinforcement drawings from construction sites via the internet, receiving requests for reinforcement bar delivery, and arranging for the reinforcement bar to be delivered to the construction site in accordance with the construction schedule. Furthermore, by placing orders for reinforcement bar delivery along with the reinforcement drawings at the construction site, many tasks related to arranging reinforcement bar are relieved, allowing personnel to be allocated to other tasks.

[0188] The data supply unit 12 selects the reinforcing bars required at the time of construction, outputs processing instruction information for the selected reinforcing bars, and outputs delivery instruction information to the construction unit for the reinforcing bars processed based on the processing instruction information. Therefore, the reinforcing bar delivery support system 60 makes it possible to properly arrange for reinforcing bars according to the time of construction by utilizing information processing technology.

[0189] The data supply unit 12 can create 3D model information of bent reinforcing bars, including millimeter-level center dimension information as a parameter related to the 3D model of the bent reinforcing bar. Therefore, the reinforcing bar delivery support system 60 creates 3D model information of bent reinforcing bars with precise millimeter-level values. Furthermore, the data supply unit 12 can provide accurate information regarding the length of the reinforcing bars. In addition, it is possible to provide accurate estimated weight information and estimated price information using the accurate information regarding the length of the reinforcing bars.

[0190] Furthermore, in the rebar delivery support system 60, when creating rebar processing information, the system creates rebar processing information including external dimension information, and converts the rebar processing information into a readable code that can be read by a reading device and outputs it. Therefore, in the processing unit 16, it is possible to process the rebar, which has been prepared based on accurate length information, with good workability using external dimension information.

[0191] Furthermore, if there are any changes to the construction schedule, the data supply unit 12 processes information such as construction timing information, processing instruction information, and delivery instruction information to match the revised schedule.

[0192] Furthermore, the following situations can be given as examples of situations in which the rebar delivery support system 60 described above is used. The client ordering the rebar (in this case, the construction department 14) uploads the building (structure) design drawings (in this case, reinforcement drawings) to the rebar delivery support system 60 and requests the contractor (in this case, the data supply department 12) to deliver the rebar. However, the design drawings do not contain information necessary for processing the rebar, such as the length of the rebar before processing, the diameter of the rebar, and the radius of the bend (processing required information).

[0193] The contractor creates a 3D model of the reinforcing steel in the system, supplementing the necessary processing information based on the design drawings. The client views the 3D model in the system, and, taking into account the supplemented processing information, determines and specifies the order and schedule for ordering the reinforcing steel in the system. When making specifications, it is possible to specify a part of the building or a part of the project (such as a part of a column).

[0194] The contractor determines the rebar ordering schedule by specifying the order and schedule of rebar orders, and places orders for processing with the processing department 16. When placing orders for processing, precise numerical orders are made using rebar processing information designed down to the millimeter. When placing orders for processing, it is possible to order parts of a building or parts of a project (such as parts of columns).

[0195] Here, the processing order schedule can also be determined by the client ordering the rebar (in this case, the construction department 14). In this case, the contractor (in this case, the data supply department 12) provides the 3D model to the client (in this case, the construction department 14), and the client (in this case, the construction department 14) determines the phased construction schedule.

[0196] It should be noted that the embodiments described above are merely examples of concrete implementations of the invention relating to the rebar delivery support system 60, and the technical scope of the invention should not be interpreted as being limited by these embodiments. In other words, the invention relating to the rebar delivery support system 60 can be implemented in various forms without departing from its gist or its main features.

[0197] For example, the rebar delivery support system 60 can be included in the construction support system 10 and can be a system that constitutes part of the construction support system 10. [Explanation of symbols]

[0198] 10: Construction support system 12: Data Supply Unit 14:Construction Department 16: Processing section 17: Rebar processing machine 22: 3D Model 24: Reinforcement drawing 26: Summary Table 30: Construction support equipment 31: Control Unit 32: Storage section 33: Communications Department 34:Operation unit 35: Display section 36: 3D Model Creation Department 37: Reinforcement Drawing Creation Department 38: Summary Table Creation Department 39: Reinforcement Information Processing Unit 40: 2D Code Creation Department 42A, 46, F2, C-1, 46A: Reinforcement bar object 47: External surface 48: Inner self 60: Reinforcement bar delivery support system C, Ca~Ce: Center line

Claims

1. It is used to deliver rebar to construction sites for use in the construction of buildings. Creating reinforcing bar manufacturing information related to the processing of the reinforcing bar from a reinforcing bar arrangement drawing showing the arrangement of the reinforcing bar; A reinforcing bar delivery support system that processes the reinforcing bars required for a plurality of construction periods determined in stages in a construction schedule based on the reinforcing bar production information and delivers the reinforcing bars to the construction site, The reinforcing bar manufacturing information is created by a specific construction support method, The specific construction support method includes: A method for supporting the construction of a building using three-dimensional modeling of bending rebars, comprising: As parameters relating to the three-dimensional model of the bent reinforcing bar, center dimension information of the bent reinforcing bar in millimeters and outer surface dimension information in units larger than the millimeters are used, a three-dimensional model information creating step of creating three-dimensional model information relating to the three-dimensional model; A reinforcing bar production information creation process for creating the reinforcing bar production information based on the three-dimensional model information, In the construction support method, at least in the three-dimensional model information creation step, the three-dimensional model information is created including the center dimension information, A reinforcing bar delivery support system in which the reinforcing bars are ordered by uploading the reinforcing bar arrangement drawing via the Internet.

2. The reinforcing bar delivery support system as described in claim 1, wherein the reinforcement bar arrangement drawing does not include information necessary for processing the reinforcing bar, such as the length of the reinforcing bar before processing, the diameter of the reinforcing bar, and the radius of the bent portion of the reinforcing bar.

3. A reinforcing bar delivery support system as described in claim 2, wherein the reinforcing bar production information is created based on the reinforcing bar arrangement drawing and supplemented with information necessary for processing the reinforcing bars.

4. An ordering process for uploading a reinforcing bar arrangement drawing for reinforcing bars to be used in the construction of a building via the Internet and ordering the reinforcing bars; Storing a plurality of pieces of construction time information relating to a construction schedule of the building; A step of selecting reinforcing bars required at the construction time indicated by the construction time information; outputting rebar production information of the selected rebar; and outputting delivery instruction information for the reinforcing bar processed based on the reinforcing bar production information, The reinforcing bar manufacturing information is created by a specific construction support method, The specific construction support method includes: A construction support method for a building using three-dimensional modeling of bending rebars, comprising: As parameters relating to the three-dimensional model of the bent reinforcing bar, center dimension information of the bent reinforcing bar in millimeters and outer surface dimension information in units larger than the millimeters are used, a three-dimensional model information creating step of creating three-dimensional model information relating to the three-dimensional model; A reinforcing bar production information creation process for creating the reinforcing bar production information based on the three-dimensional model information, A reinforcing bar delivery support method, which is a construction support method in which at least in the three-dimensional model information creation step, the three-dimensional model information is created including the center dimension information.

5. The reinforcing bar delivery support method described in Claim 4, wherein the reinforcement bar arrangement drawing does not include information necessary for processing the reinforcing bar, such as the length of the reinforcing bar before processing, the diameter of the reinforcing bar, and the radius of the bent portion of the reinforcing bar.

6. A reinforcing bar delivery support system as described in claim 5, wherein the reinforcing bar production information is created based on the reinforcing bar arrangement drawing and supplemented with information necessary for processing the reinforcing bars.

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