Spray thickness control tool, spray thickness control method, and spray thickness control system

Abstract

To quickly and efficiently control sprayed thickness of a fireproof coating material sprayed onto a construction target surface.SOLUTION: A thickness confirmation member arranged to protrude orthogonally from a construction target surface, and a fixing member to fix the thickness confirmation member to the construction target surface are provided. The thickness confirmation member is provided with a specification thickness reference part indicating a standard of the required specification thickness of a fireproof covering material sprayed on the construction target surface, and is colored.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a spray thickness control tool, a spray thickness control method, and a spray thickness control system for controlling the thickness of a fire-resistant coating material sprayed onto a surface to be treated. [Background technology]

[0002] In steel-framed buildings, fireproofing is achieved by applying fireproofing material to the surface of the structure. When applying fireproofing by spraying, quality control is required to confirm that the fireproofing material is sprayed at a specified thickness according to the fire resistance required for each structural material. Generally, the confirmation work is carried out by a field worker inserting a needle of a thickness measuring tool such as that shown in Patent Document 1 into the sprayed fireproofing material on the surface to be worked on to measure the thickness, or by inserting a thickness confirmation pin to confirm that the sprayed thickness meets the specified thickness. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 10-267605 Summary of the Invention [Problem to be solved by the invention]

[0004] The method of controlling the spray thickness using the above-mentioned thickness measuring tools and thickness confirmation pins requires manual labor to check the spray thickness, and furthermore, if the surface to be worked on is at a high altitude, work at high altitudes is required using work scaffolding, aerial work vehicles, etc.

[0005] In particular, in recent years, many sites have introduced spraying robots to reduce the number of workers required for spraying work and to improve work efficiency, and in such cases, scaffolding and high-altitude work vehicles may be required only for inspection work. This not only creates issues with work safety, but also requires a great deal of time and money for quality control, which is likely to be disadvantageous in terms of construction time and costs.

[0006] The present invention has been made in consideration of the above problems, and its main object is to quickly and efficiently manage the thickness of a fire-resistant coating material sprayed onto a surface to be treated. [Means for solving the problem]

[0007] In order to achieve this object, the spray thickness control tool of the present invention is as follows: A spray thickness control tool for controlling the spray thickness of fireproof coating material, for steel frame structures A thickness confirmation member is arranged to protrude in a direction perpendicular to the surface to be worked on, and a fixing member is provided to fix the thickness confirmation member to the surface to be worked on, The fireproof coating material is made of a material containing rock wool granules and a cement-based hardening material, The thickness confirmation member is a specification thickness guide portion that shows a guideline for the specification thickness required for the fire-resistant coating material sprayed on the application target surface. and a control guideline section showing a guideline for the control amount serving as a target for the surface position of the fire-resistant covering material. was established, The specified thickness guide portion and the control guide portion are different from the fireproof coating material and are different in color from each other. It is characterized by being colored.

[0008] The spray thickness control method of the present invention is a method for controlling the spray thickness of a fireproof coating material sprayed onto a surface to be treated using the spray thickness control jig of the present invention, the method comprising the steps of: attaching the spray thickness control jig to the surface to be treated; spraying the fireproof coating material onto the surface to be treated; and measuring the specification thickness guide portion exposed from the fireproof coating material sprayed onto the surface to be treated, With dyed colors and a step of controlling the specified thickness of the fire-resistant coating material by detecting the thickness of the fire-resistant coating material.

[0009] The spray thickness management system of the present invention is a spray thickness management system including the spray thickness management tool of the present invention and a thickness management support device that supports management of the specified thickness of the fireproof coating material sprayed onto the construction target surface, the thickness management support device including an image acquisition unit that acquires image data of the fireproof coating material sprayed onto the construction target surface to which the spray thickness confirmation tool is attached, and a specified thickness guide portion that is exposed from the fireproof coating material on the image data. With dyed colors and an image analysis unit that detects the

[0010] According to the spray thickness control jig, spray thickness control method, and spray thickness control system of the present invention, by attaching the spray thickness control jig to the surface to be worked on before spraying work, when checking the spray thickness, on-site workers or construction managers can detect the colored areas that indicate an approximate specified thickness by visual inspection, or on image data taken of the sprayed fire-resistant coating material, and can confirm whether the spray thickness meets the specified thickness.

[0011] This allows on-site workers and construction managers to easily check the thickness of the sprayed fireproof coating from a distance without approaching the target surface, making it possible to quickly and efficiently control quality even when the target surface is spread over a wide area. In addition, since there is no need to prepare scaffolding or aerial work vehicles even when the target surface is at a high altitude, work safety can be ensured and it contributes to reducing construction costs and shortening construction time.

[0012] Furthermore, by adopting a spray thickness management system, a series of tasks from checking the spray thickness to compiling the data can be automated by acquiring image data of the fireproof coating material sprayed onto the construction target surface. This allows data such as the spray thickness status and position information obtained from each spray thickness management tool to be consolidated and managed in a centralized manner, and the managed data can also be used for creating reports, etc. In this way, it is possible to support the quality control work of construction managers and improve efficiency. Effect of the Invention

[0013] According to the present invention, by using a spray thickness control jig that can be attached to the surface to be treated before the spraying work, it is possible to quickly and efficiently control the spray thickness of the fire-resistant coating material sprayed onto the surface to be treated. [Brief description of the drawings]

[0014] [Figure 1] FIG. 2 is a diagram showing the state of fireproof coating work by spraying in this embodiment. [Diagram 2] FIG. 13 is a diagram showing a spray thickness control jig in the present embodiment. [Diagram 3] 1A to 1C are diagrams showing a procedure for controlling the spray thickness using a spray thickness control jig in the present embodiment. [Figure 4] 13A and 13B are diagrams showing another example of the spray thickness control jig in the present embodiment. [Diagram 5] FIG. 2 is a diagram showing a spray thickness management system in the present embodiment. [Figure 6] FIG. 11 is a diagram showing the flow of quality control of spray thickness in the present embodiment. [Figure 7] FIG. 1 is a diagram showing an example of use of the spray thickness management system in this embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] The spray thickness control tool, spray thickness control method, and spray thickness control system of the present invention will be described in detail below with reference to Figures 1 to 7, taking as an example the case where they are used for quality control of a semi-dry rock wool construction method.

[0016] <<Spraying of fireproof coating material>> As shown in Fig. 1, in the spraying construction using the semi-dry rock wool method, first, a fireproof coating material C made of a material containing rock wool granules and a cement-based hardening material is sprayed onto the construction target surface T of a building 100. Next, a fireproof finish is performed by pressing with a trowel or performing similar work to suppress the fuzz that occurs on the surface of the sprayed fireproof coating material C.

[0017] Thereafter, the work of controlling the spray thickness of the fireproof coating material C sprayed onto the construction target surface T is carried out using the spray thickness control jig 1. Details of the spray thickness control jig 1 will be described below using an example in which the construction target surface T is provided on a beam member 101 made of H-shaped steel.

[0018] <Spray thickness control tool> As shown in Figure 2(a), the spray thickness control jig 1 comprises a thickness confirmation member 2 arranged to protrude perpendicularly from the construction target surface T of the beam member 101, and a fixing member 3 provided on the base end side 2a of the thickness confirmation member 2.

[0019] The thickness confirmation member 2 is provided with a specified thickness guide portion 21 that functions as a guide for the specified thickness L1 required when spraying the fire-resistant coating material C onto the application target surface T, and a control guide portion 22 that functions as a guide for the control allowance L2. Therefore, the thickness confirmation member 2 protrudes from the application target surface T with a length L that is at least the specified thickness L1 plus the control allowance L2.

[0020] The control allowance L2 is the target surface position of the fire-resistant coating material C that is sprayed onto the target surface T and then fire-resistant finished.If the surface is within the range of the control allowance L2, the sprayed fire-resistant coating material C can be evaluated as satisfying the specified thickness L1 and being within the control target range, being sprayed at an economical volume.

[0021] The specification thickness guide portion 21 located on the base end side 2a and the control guide portion 22 located on the tip end side 2b each have a colored portion with a different color applied to the circumferential side surface. Any color scheme may be used as long as it is possible to distinguish between the two and the color type is different from that of the fire-resistant covering material C. For example, only one of them may be colored and the other may be left in its raw state without being colored. When no coloring is used, this is limited to cases where the raw material is a color that can be distinguished from the fire-resistant covering material C by image processing or visual inspection, etc.

[0022] For example, Fig. 2(b) shows an example in which the control guideline portion 22 (range of control allowance L2) is colored differently according to the fire resistance required for each structural member (beam member 101, column member 102) to which the spray thickness control jig 1 is attached. The colors used here are in accordance with the colors of the existing thickness confirmation pins stipulated in the "Sprayed Rockwool Covered Fireproof Structure Construction Control Guidelines Revised in 2012 Rockwool Industry Association."

[0023] In this case, the color used for the specification thickness guide section 21 (range of specification thickness L1) may be any color other than that used in the management guide section 22 and other than a color similar to that of the fire-resistant coating material C (a color in which the difference in color type can be distinguished by image processing or visual inspection, etc.).

[0024] The material of the thickness confirmation member 2 having such a configuration is a corrosion-resistant metal that is used for existing thickness confirmation pins, such as a carbon steel wire rod for cold heading (JIS G 3507) or a hot-dip galvanized steel sheet (JIS G 3302). However, the material is not limited to this, and any non-flammable inorganic material, such as a hardened body made of a cement-based material, may be used.

[0025] The fixing member 3 may be made of any material, such as a magnet or adhesive, as long as it is capable of fixing the thickness confirmation member 2 to the target surface T. When an adhesive is used, it is preferable to use a bitumen-based, synthetic rubber-based, synthetic resin-based adhesive, or an adhesive equivalent thereto, which is approved for use as a secondary constituent material of the fire-resistant coating material C. A specific example of an adhesive is CN adhesive (cyanoacrylate), etc.

[0026] When the spray thickness control jig 1 is installed on a beam member 101 made of H-shaped steel, it is preferable to install it in a position where it can be seen by on-site workers and construction managers on the work floor, for example, on the underside of the upper flange, the web, the small end and the underside of the lower flange when viewed from the cross section as shown in Figure 3(a). Also, when installing it on a column member 102 made of a square steel pipe, it is preferable to install at least one on each column surface as shown in Figure 1.

[0027] <<How to control spray thickness>> The procedure for controlling the spray thickness using the above-mentioned spray thickness control jig 1 will be described below, taking as an example the case where spraying work is carried out on one surface of a beam member 101.

[0028] First, as shown in Fig. 3(b), the fireproof coating material C is sprayed onto the beam member 101 to which the spray thickness control jig 1 is attached. Next, after applying a trowel pressure or a similar fireproof finish, the state of the spray thickness control jig 1 attached to the beam member 101 is observed. The spray thickness control jig 1 may be observed using imaging data obtained by imaging the fireproof coating material C sprayed onto the beam member 101, or an on-site worker may directly observe it visually.

[0029] For example, looking at Figure 3(c), the spray thickness control jig 1 provided on the small end and underside of the lower flange has a visible control guide portion 22, but not a visible specified thickness guide portion 21. Therefore, it can be evaluated as being within the control target range that satisfies the specified thickness L1 and has an economical volume. Moreover, the spray thickness control jig 1 itself cannot be seen on the underside of the upper flange. Therefore, it can be evaluated that the spray thickness of the small end and underside of the lower flange and the underside of the upper flange exceeds the control target.

[0030] On the other hand, the spray thickness control jig 1 provided on the web has both the control guide portion 22 and the specified thickness guide portion 21 exposed and visible. In other words, it can be determined that the spray thickness of the fire-resistant coating material C does not satisfy the specified thickness L1. Therefore, the on-site worker repeats the spraying operation of the fire-resistant coating material C and the fire-resistant finish on the area including the vicinity thereof until at least the specified thickness guide portion 21 becomes invisible.

[0031] In this way, by using the spraying thickness control jig 1, on-site workers and construction managers can easily and directly visually confirm that the fire-resistant coating material C meets the specified thickness even if they are not in close proximity to the fire-resistant coating material C sprayed onto the beam member 101. In particular, when the construction site covers a wide area, the construction site can be photographed using video or still images to obtain captured images, and the captured images can be visually confirmed to quickly and efficiently carry out quality control work for the spraying thickness.

[0032] Therefore, it is possible to omit the conventional work of directly measuring and confirming the thickness of the fireproof covering material C using scaffolding or aerial work vehicles, ensuring work safety and contributing to reducing construction costs and shortening the construction period. Furthermore, since the management guideline portion 22 adopts a color scheme similar to that of existing thickness confirmation pins as shown in Fig. 2(b), it may be possible to omit the work of planting in the fireproof covering material C as a substitute for the thickness confirmation pins conventionally performed for construction quality inspection.

[0033] <Other examples of spray thickness control jigs> In FIG. 2(a), a rod-shaped member is used as the thickness checking member 2 of the spray thickness control jig 1, but the thickness checking member 2 may be formed in any shape.

[0034] For example, Fig. 4(a) shows an example in which an L-shaped plate material 23 is used as the thickness confirmation member 2. Specifically, one plate constituting the L-shaped plate material 23 is set as the base end side 2a of the thickness confirmation member 2, and a fixing member 3 is provided on the plate surface. In addition, the other plate constituting the L-shaped plate material 23, which is arranged so as to protrude perpendicularly from the construction target surface T, has a length L obtained by adding a control allowance L2 to the specified thickness L1, and its tip is set to the tip side 2b.

[0035] A specified thickness indication portion 21 made of a plate material is provided at the position of the specified thickness L1 as viewed from the base end side 2a, and a control indication portion 22 made of a plate material is provided at the tip end side 2b, and these are colored. The specified thickness indication portion 21 and the control indication portion 22 protrude perpendicularly to the L-shaped plate material 23 and are provided so as not to overlap each other. The specified thickness indication portion 21 and the control indication portion 22 may be made of plate material of the same shape, or may have different sizes and external shapes to make them easier to distinguish.

[0036] 4(b), the site worker or construction manager can easily check the specification thickness guide portion 21 and the control guide portion 22 even if he or she is not in close proximity to the beam member 101. The spray thickness control jig 1 having such a shape can be applied to both the beam member 101 and the column member 102, and to either position.

[0037] Moreover, as a shape suitable for installation on the lower flange of the beam member 101, for example, an angle plate material 24 as shown in Figs. 4(b) and (c) may be adopted as the thickness confirmation member 2.

[0038] Specifically, a fixing member 3 is provided to close the opening of the angle plate 24, forming a triangular prism, and the inner surface of the fixing member 3 is set as the base end side 2a. The area from the base end side 2a to the inner corner of the angle plate 24 is set as the specified thickness L1, and the material thickness of the angle plate 24 is set as a control allowance L2, and a specified thickness guide portion 21 made of a triangular plate is provided to close both ends of the angle plate 24. The outer corner of the angle plate 24 is set as the tip side 2b, and the area between the inner corner and the outer corner is set as the control guide portion 22, and the control guide portion 22 and the specified thickness guide portion 21 are colored.

[0039] <<Spraying thickness management system>> On-site workers and construction managers can check the spray thickness by directly visually inspecting the spray thickness control jig 1, which has the above-mentioned specification thickness guide section 21 and control guide section 22, or by visually checking an image taken of the fire-resistant coating material C, and thereby perform quality control.

[0040] However, as shown in Fig. 5(a), it is also possible to automate the quality control work including the spray thickness control method carried out in the above-mentioned procedure by combining the spray thickness control jig 1 and the thickness control support device 10 to configure a spray thickness control system 20. The spray thickness control system 20 will be described in detail below.

[0041] <Thickness control support device> 5(b), the thickness management support device 10 includes at least a display screen 11, an imaging means 12, a storage means 13, a processor 14, an operation means 15, and a communication means 16. The communication means 16 will be described later.

[0042] The display screen 11 is composed of, for example, a flat panel display such as a liquid crystal display or an organic EL display, and displays moving images and still images captured by the imaging means 12, and information stored in the storage means 13. The imaging means 12 is composed of a so-called camera or video, and has a function of capturing moving images, still images, etc., and acquiring imaging data.

[0043] The storage means 13 stores, for example, moving images and still images captured by the imaging means 12, and information acquired via the operation means 15. The operation means 15 includes a keyboard having cursor keys, numeric input keys, and various function keys, and a pointing device such as a mouse, and receives operation signals input by key operations, mouse operations, and the like, and outputs them to the storage means 13 and the arithmetic processing device 14. In this embodiment, it is preferable to employ an integrated configuration of the display screen 11 and the operation means 15, such as a flat panel display with a touch panel.

[0044] The calculation processing device 14 is equipped with a CPU, GPU, ROM, RAM, hardware interface, etc., and by executing a predetermined program, at least the functions of an image acquisition unit 141, an image analysis unit 142, and a data processing unit 143 described below are realized.

[0045] The image acquisition unit 141 has a function of acquiring imaging data captured by the imaging means 12 or the like, and the image analysis unit 142 has a function of detecting the specification thickness guideline portion 21 and the control guideline portion 22 of the spray thickness control jig 1 captured in the acquired imaging data. The data processing unit 143 has a function of organizing data relating to the position information of the spray thickness control jig 1 and information relating to the specification thickness guideline portion 21 and the control guideline portion 22 extracted from the imaging data.

[0046] As long as the thickness management support device 10 has the above functions, any of a notebook PC, a tablet terminal, a smartphone, etc. may be used. In the present embodiment, a case where a tablet terminal is used as the thickness management support device 10 is taken as an example.

[0047] <<How to control spray thickness>> Below, the procedure for supporting quality control work to control spray thickness using the above-mentioned spray thickness control system 20 will be explained with reference to the block diagram of the spray thickness control system 20 shown in Figure 5 and the work flow in Figure 6.

[0048] <Structural work> First, before constructing the steel frame structure, a spray thickness control jig 1 as shown in Figure 2(a) or Figures 4(a) to (c) is installed at a predetermined position on the construction target surface T of the beam members 101 and column members 102 that make up the structure.

[0049] As described above, the beam members 101 are installed on the underside of the upper flange, on the web, and on the small end and underside of the lower flange as shown in Fig. 3(a), while at least one column member 102 is installed on each column surface as shown in Fig. 1. The spacing and number of spray thickness control jigs 1 to be placed in the axial direction of the beam members 101 and column members 102 can be appropriately determined by the site staff or work manager.

[0050] In this way, by attaching the spraying thickness control jig 1 in advance and then carrying out structural work, it is possible to omit work at height related to the installation of the spraying thickness control jig 1. Note that the spraying thickness control jig 1 may be installed on the beam members 101 and column members 102 after structural work has been carried out.

[0051] <Fireproof coating work> Next, the work of spraying the fireproof coating material C is started on the beam members 101 and the column members 102 with the spray thickness control jig 1 installed. When the spraying work is performed manually, the spraying worker can perform the spraying work using as a guide the color types colored for each of the ranges of the specified thickness L1 and the range of the control allowance L2 on the spray thickness control jig 1. Therefore, even if the spraying worker is not an experienced worker, it is possible to suppress uneven spraying.

[0052] The above-mentioned spraying work does not have to be performed by human power, and any spraying device used in the spraying work of the fireproof coating material C may be used. FIG. 1 illustrates a spraying device 60 including a robot arm A having a spraying means attached to a manipulator and a traveling part B supporting the robot arm A. Details of the spraying device 60 are given in JP 2020-20206 A, but the use of such a spraying device 60 makes it possible to reduce the number of people required for the spraying work.

[0053] After the above-mentioned spraying work is completed, the fireproof covering material C is subjected to a trowel pressing or similar work as appropriate for each beam member 101 and column member 102 to provide a fireproof finish. Note that if the spraying work also serves as the fireproof finish, the work of pressing with a trowel or the like is not necessary.

[0054] <Spray thickness control> As shown in FIG. 5( a ), a site worker or a construction manager operates the operation means 15 of the thickness management support device 10 to capture an image of the fireproof coating material C on the beam member 101 and the column member 102 with the imaging means 12 .

[0055] Then, the arithmetic processing device 14 receives a command from the image acquisition unit 141 to acquire the captured image data and supplies it to the image analysis unit 142. The arithmetic processing device 14 receives a command from the image analysis unit 142 to detect if the specification thickness guide portion 21 and the management guide portion 22 are exposed from the fire-resistant covering material C in the captured image data, and displays this on the display screen 11.

[0056] Any detection method may be used, but the specification thickness guide portion 21 and the control guide portion 22 are colored to be distinguishable from each other and from the fire-resistant coating material C. Therefore, it is preferable to detect the specification thickness guide portion 21 and the control guide portion 22 from the imaging data by appropriately adopting a suitable method such as a conventional method for image processing, such as image recognition, or machine learning, such as supervised learning, which is capable of recognizing and extracting an object by color.

[0057] In addition, when the colors corresponding to the specification thickness guide section 21 and the management guide section 22 are specified and extracted from the imaging data, they may be displayed as is on the display screen 11, or the extracted positions may be processed to be easier to see by emphasizing the extracted colors or adding a marker.

[0058] On the basis of such a display screen 11, a site worker or a construction manager can confirm the position where the specified thickness guide portion 21 is extracted, that is, the position where the sprayed thickness does not satisfy the specified thickness L1. Also, the site worker or the construction manager can confirm the position where only the control guide portion 22 is extracted, that is, the position where the sprayed thickness satisfies the specified thickness L1 and is sprayed at an economical volume.

[0059] Therefore, when the specification thickness indication portion 21 is extracted on the display screen 11, the spraying work is carried out again on the vicinity including that position. The above-mentioned confirmation work is repeated every time the spraying work is repeated, and the spraying work is terminated when it is confirmed that the specification thickness indication portion 21 is no longer extracted.

[0060] Thereafter, when a site worker or a construction manager prepares a report or the like, he or she inputs instruction information regarding data output using an operation means 15 such as a touch panel. When the instruction information is input, the arithmetic processing device 14 receives a command from the data processing unit 143, processes the data stored in the storage means 13 so that it can be output as appropriate, and outputs it to the display screen 11. Alternatively, the data is output to a so-called output device such as a printer or external storage device connected by wire or wirelessly.

[0061] In this way, by adopting the spray thickness control system 20, it is possible to automate a series of tasks related to quality control of the spray thickness, from checking the spray thickness to creating reports.

[0062] <Other examples of image analysis> In the spray thickness management system 20, the imaging data captured by the imaging means 12 may be subjected to image analysis without being processed as described above, but, for example, a composite image may be created by combining a 3D CG image of the building 100 in the BIM data with the imaging data captured by the imaging means 12, and this composite image may be used.

[0063] In this case, it is preferable that the thickness management support device 10 is provided with a communication means 16 for transmitting and receiving data to and from the management server 40 and the terminal device 50 via the communication network 30, as shown in FIG. 5(b) and FIG.

[0064] The communication network 30 may be constructed using the Internet, a dedicated communication line, etc. The terminal device 50 is a personal computer, a notebook PC, a tablet terminal, a smartphone, etc. capable of wireless communication and capable of transmitting and receiving data to and from the management server 40 and the terminal device 50.

[0065] For example, the management server 40 is a computer system or cloud server capable of transmitting and receiving data to and from the thickness management support device 10 and the terminal device 50 via the communication network 30, and stores BIM data. The BIM data stores design information such as blueprints of the building 100, and is data that can reproduce a three-dimensional model of the building 100 identical to the real one on a computer.

[0066] In this way, for example, the arithmetic processing device 14 synthesizes the imaging data acquired by receiving a command from the image acquisition unit 141 with a 3D CG image of the building 100 created from the BIM data acquired from the management server 40 to generate a composite image. The task of synthesizing the real image of the fireproof covering material C with the 3D CG building 100 can be performed by using so-called AR (Augmented Reality) technology, which displays an image combining a real image and digital information on the display screen 11 in real time.

[0067] Next, the arithmetic processing device 14 receives a command from the image analysis unit 142 to extract the specification thickness guideline portion 21 and the management guideline portion 22 from the captured image data on the composite image, recomposites this extracted image with the 3D CG image of the building 100, and displays it on the display screen 11. All of this information acquired by the thickness management support device 10 is stored in the memory means 13.

[0068] In this way, the positions where the specification thickness guide section 21 and the management guide section 22 are extracted can be grasped more accurately, and the position information can be obtained based on the BIM data. Note that the design information of the building 100 is not necessarily limited to BIM data, and may be 3D CAD data or the like as long as it is digital data.

[0069] In addition, other workers located away from the construction office or site can carry terminal equipment 50 and obtain the data stored in the memory means 13 of the thickness management support device 10 via the communication means 16 and the communication network 30, and view the data or use it as material for creating reports.

[0070] In addition, the information stored in the memory means 13 of the thickness management support device 10 is not limited to the imaging data of the fire-resistant coating material C imaged after the spraying work is completed, the extracted data of the specification thickness guideline section 21 and the management guideline section 22, and their position information, etc.

[0071] For example, it is advisable to take an image of the construction target area T with the spraying thickness control jig 1 installed before the spraying work. In this way, by generating a composite image with a 3D CG image of the building 100, it is possible to obtain position information of the spraying thickness control jig 1. As a result, even if both the specification thickness guide portion 21 and the control guide portion 22 are embedded in the fireproof covering material C after the spraying work, it is possible to identify the position where the spraying thickness exceeds the control target.

[0072] By adopting the above-mentioned spray thickness management system 20, data such as the spray thickness status and location information obtained from each spray thickness management jig 1 can be aggregated and centrally managed, and the managed data can also be used for report creation, etc., thereby supporting the quality control work of construction managers and making it possible to improve efficiency.

[0073] The spray thickness control tool 1, the spray thickness control method, and the spray thickness control system 20 of the present invention are not limited to the above-described embodiments, and various modifications are possible without departing from the spirit of the present invention.

[0074] For example, in this embodiment, the semi-dry rock wool method is taken as an example, but the present invention may be adopted for spraying the fireproof coating material C using other methods.

[0075] In this embodiment, the thickness confirmation member 2 constituting the spray thickness control jig 1 is set to a length L equal to the specified thickness L1 plus the control allowance L2, but it may be formed to be longer than this. Alternatively, it may be configured to have a length sufficient to ensure at least the specified thickness L1, and only the specified thickness guide portion 21 may be provided.

[0076] Furthermore, in this embodiment, the imaging means 12 such as a camera provided in the thickness management support device 10 is used to capture an image of the fireproof coating material C and obtain the imaging data, but this is not necessarily limited to this. It is also possible to use imaging data captured by other imaging devices as long as the data is digital data. [Explanation of symbols]

[0077] 1 Spray thickness control tool 2 Thickness check material 2a Proximal side 2b Tip side 21 Specification thickness guide 22 Management Guidelines Section 23 L-shaped plate material 24 Angle plate material 3 Fixing material L1 Specification thickness L2 management fee 10. Thickness control support device 11 Display screen 12 Imaging means 13 Memory means 14 Processing unit 15 Operating means 16 Means of communication 20 Spray thickness control system 30 Communication Network 40 Management Server 50 Terminal Equipment 60 Spraying Equipment 100 Buildings 101 Beam member 102 Column members A Robot Arm B Running part C Fireproof cladding T Construction target surface

Claims

1. A spray thickness control tool for controlling the spray thickness of a fire-resistant coating material, A thickness confirmation member arranged to protrude perpendicularly from a construction target surface of a steel frame structure; A fixing member for fixing the thickness confirmation member to the target surface, The fireproof coating material is made of a material containing rock wool granules and a cement-based hardening material, The thickness confirmation member is provided with a specification thickness guide portion that indicates a guideline of a specification thickness required for the fire-resistant coating material sprayed onto the application target surface, and a control guide portion that indicates a guideline of a control allowance that is a target for the surface position of the fire-resistant coating material, A spray thickness control jig characterized in that the specification thickness guide portion and the control guide portion are colored differently from the fire-resistant coating material and differently from each other.

2. A method for controlling the thickness of a fireproof coating material sprayed onto a surface to be treated using the spray thickness control tool according to claim 1, comprising: Attaching the spray thickness control jig to the target surface; A step of spraying the fireproof coating material on the surface to be treated; A step of controlling the specified thickness of the fire-resistant coating material by detecting the specified thickness guide portion exposed from the fire-resistant coating material sprayed on the application target surface by a colored color; A method for controlling spray thickness comprising:

3. The spray thickness control jig according to claim 1 ; a thickness management support device that supports management of the specification thickness of a fireproof coating material sprayed onto a surface to be treated; A spray thickness management system comprising: The thickness management assistance device, an image acquisition unit that acquires image data of the fireproof coating material sprayed onto the work target surface to which the spray thickness confirmation jig is attached; an image analysis unit that detects the specified thickness guide portion exposed from the fire-resistant covering material by coloring the image data; A spray thickness control system comprising:

Images