Manufacturing method of rebar with construction identification information

Abstract

The project aims to improve the efficiency of rebar placement work in reinforced concrete structures, improve construction accuracy, standardize construction skills, and provide digital construction support. [Solution] This relates to rebars with construction identification information, in which physical markings (color-coded ink, engravings, patterns, etc.) indicating the installation positions of constituent rebars (beam rebars, ties, stirrups, slab rebars, wall rebars, web rebars, etc.) are applied to the rebars during the factory processing stage. These markings allow for visual identification of each constituent rebar, and in addition to visual confirmation on-site, they can be linked to a matching app or AR device as needed to improve construction accuracy and achieve uniform construction quality. Note that while the drawings are shown in black and white, the actual markings are configured to be identifiable using a combination of color, line shape, engravings, etc.

Description

[Technical Field]

[0001] This invention relates to a pre-marking technology for rebars in reinforced concrete structures, and in particular to a technology that links with BIM (Building Information Modeling) and CAD data to mark rebars during processing. The aim of this is to improve construction efficiency, prevent construction errors, and provide digital construction support. [Background technology]

[0002] Among related existing technologies, there is no technology that marks the binding position on the rebar itself. Most of them are marking devices and methods for identifying steel materials or supporting construction inspections (Patent Documents 1 and 2), and their purpose is different from that of this invention, which includes a marking system linked to construction drawings and BIM.

[0003] Conventionally, when constructing reinforced concrete structures, the positions of ties, stirrups, slab reinforcement, wall reinforcement, and web reinforcement had to be measured on-site by workers visually and by referring to drawings, and then marked before being tied down. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] The following patent documents are known as related prior art: Utility Model Registration No. 3232942: A technology for marking rebars with oil-based markers at 10cm intervals. Its purpose is to simplify dimension measurement work. It is unrelated to component type or construction support. Patent Document 2: Japanese Patent No. 7340434: A technology for printing codes such as product numbers and manufacturing lots on rebars. It is intended for manufacturing management purposes and is not related to construction support. Patent Document 3: Japanese Patent No. 6975568: A technology for attaching tags to rebars and using them for post-construction inspection. It is not used for pre-construction support. Differences from Prior Art: The present invention clearly differs from the above-mentioned prior art in the following respects: Patent Document 1 (U3232942) marks dimension lines at equal intervals on rebars to assist in measuring the length of the rebars, but is not intended to identify component type or installation position. In contrast, the present invention differs in its technical concept by using color-coded markings for each type of rebar, clearly indicating both component type and installation position. Patent Document 2 prints identification codes for manufacturing management purposes and is unrelated to assisting on-site workers in determining the type of rebar or bundling position. The present invention provides immediately visible information to contractors. Patent Publication No. 6975568: A configuration in which tags are attached to rebars for post-construction inspection and confirmation. It is not used for pre-construction support. The present invention is clearly different in purpose, configuration, and effects from these technologies in that it marks each type of rebar with a visible color, etc., to improve construction accuracy and work efficiency. Summary of the Invention [Problem to be solved by the invention]

[0005] With the decline in skilled workers, there is a demand for a system that allows anyone to carry out construction work with a consistent level of quality. Marking technology, which clearly shows the installation position of rebar based on design information, can prevent the root causes of construction errors and dramatically improve construction efficiency. [Means for solving the problem]

[0006] Physical marking is applied to the entire circumferential surface of the rebar or to one side of the rebar, but printing in one direction is preferred from the standpoint of equipment configuration and efficiency.

[0007] The reinforcing bar with construction identification information and its manufacturing method according to the present invention solves the above problems by the following means: (1) The installation positions of the structural reinforcement such as beam reinforcement, tie reinforcement, stirrup reinforcement, slab reinforcement, wall reinforcement, and web reinforcement are visually indicated on the rebar. Rebar configuration with recognizable physical markings; (2) The markings can be identified by different colors, line shapes, engravings, etc. for each type of reinforcement. a configuration in which the reinforcing bar has sufficient visibility and is arranged along the axial direction or circumferential direction of the reinforcing bar; (3) Extract the installation position of the structural reinforcement from BIM or CAD data, and automatically apply the information to the rebar. a manufacturing method for automatically marking; (4) At the construction site, the markings can be visually confirmed and the constituent reinforcement can be arranged and tied. ,A construction support means for confirming construction using an AR display device or a ,verification app as needed. [Effects of the Invention]

[0008] - Eliminates the need for marking work on the construction site, improving productivity and accuracy. Improved consistency of design, manufacturing, and construction information. Even beginners can perform high-quality construction. AR and app integration enable labor-saving construction inspection and record management. [Brief explanation of the drawings]

[0009] [Figure 1] Figure 1: System configuration diagram of the analysis module and rebar processing equipment. [Figure 2] Figure 2: An example of rebar with construction identification information, with markings indicating the installation position of the structural rebar. *The figure is in black and white, but in reality, each structural rebar is color-coded, but the drawing is in black and white. DETAILED DESCRIPTION OF THE INVENTION

[0010] "Construction identification information" in this specification refers to visual information (color, symbol, line, etc.) that contributes to construction instructions, such as the type and position of components. By linking this to the machine, visibility markings are applied to the rebars being transported according to the installation position of each component rebar. The marking type (color, line, etc.) takes into consideration visibility and reproducibility on-site, and by using line and symbol combinations, it is possible to also use black and white drawings, enabling quick placement and bundling. [Industrial Applicability]

[0011] This invention can be applied to the rebar processing industry, general contractors, precast factories, construction consultants, design offices, etc., and is highly compatible with the smart construction field, and is expected to be expanded to bridges, tunnels, wooden foundations, etc. [Explanation of symbols]

[0012] The reinforcing bar (1) with construction identification information shown in Figure 2 has the following physical markings (2a to 2d) applied according to the type of constituent reinforcing bar. 2a Red line or corresponding linear pattern: Stirrup installation position 2b Blue line or corresponding linear pattern: Stirrup installation position 2c Yellow line or corresponding linear pattern: Slab reinforcement installation position 2D black lines or corresponding linear patterns: wall reinforcement installation positions *Symbols and 2D codes may also be included if necessary. *Due to the limitation that the drawings are in black and white, color identification is alternatively illustrated by lines or symbols.

Claims

[Claim 1] A method for manufacturing reinforcing bars with physical markings indicating the installation positions of beam reinforcement, tie reinforcement, stirrup reinforcement, slab reinforcement, or wall reinforcement (hereinafter referred to as "constituent reinforcement") used in reinforced concrete structures, comprising the steps of: identifying the installation positions of the constituent reinforcement based on BIM or CAD data; and automatically applying physical markings to the installation positions during transportation of the reinforcing bars; and wherein the markings are output as visible colors, lines, or engraved patterns depending on the type of constituent reinforcement.

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