JP7450219B2 - Construction methods, manufacturing methods, information processing equipment - Google Patents

Description

The present invention relates to a construction method, a manufacturing method, an information processing device, and the like.

In recent years, repair (reinforcement) work on concrete structures has been increasingly performed due to aging deterioration and other reasons. Normally, in repair work for concrete structures, formwork is installed in the repaired area and mortar or concrete is poured into it, or mortar is sprayed onto it.

For example, Patent Document 1 discloses a reinforcing method in which concrete is removed from an existing concrete slab and then short fiber reinforced mortar or concrete is sprayed onto the removed portion to increase the thickness.

Japanese Patent Application Publication No. 2002-167977

However, these repair works require time and effort to prepare materials and machines for repair, and there are problems in terms of efficiency and economy. Especially if the area is small, repair work becomes more inefficient and uneconomical.

Furthermore, construction is difficult in complex areas such as areas that interface with existing structures. In order to ensure the durability of the repaired areas, careful construction work by highly skilled workers is required, and as the number of workers is decreasing due to the declining birthrate and aging population, it is difficult to secure workers.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a construction method etc. that allows easy work.

A first invention for solving the above-mentioned problems includes a step of measuring the shape of the surface of a concrete structure, a step of manufacturing an additional member using a 3D printer based on the measured shape of the surface, and a step of manufacturing the additional member using a 3D printer. installing a member on the surface , the additional member having a spacer on the surface side, the additional member being installed so that a gap is formed between the additional member and the surface, and a filler material being provided in the gap. This is a construction method characterized by filling .
A second invention includes a step of measuring the shape of a surface of a concrete structure, a step of manufacturing a formwork using a 3D printer based on the measured shape of the surface, and a step of manufacturing an additional member using the formwork. and installing the additional member on the surface , the additional member having a spacer on the surface side, and installed so that a gap is formed between the additional member and the surface, This construction method is characterized in that the gap is filled with a filler .
A third invention is a step of measuring the shape of the surface of a concrete structure, a step of manufacturing an additional member using a 3D printer based on the measured shape of the surface, and a step of installing the additional member on the surface. and a bolt is provided on the surface, the additional member has a through hole penetrating from the surface side to the front surface, and the bolt is installed on the surface by passing the bolt through the through hole, This construction method is characterized in that a nut is tightened onto the tip of the bolt.
A fourth invention includes a step of measuring the shape of the surface of a concrete structure, a step of manufacturing a formwork using a 3D printer based on the measured shape of the surface, and a step of manufacturing an additional member using the formwork. and installing the additional member on the surface, wherein a bolt is provided on the surface, the additional member has a through hole that penetrates from the surface side to the front surface, and the additional member has a through hole penetrating from the surface side to the front surface, This construction method is characterized in that a bolt is passed through the through hole and installed on the surface, and a nut is tightened to the tip of the bolt.

In the present invention, a 3D printer is used to manufacture an additional member or a formwork for manufacturing the additional member based on the shape of the surface of the concrete structure, and the additional member obtained thereby is attached to the surface of the concrete structure. By installing it, repairs etc. can be carried out on concrete structures.

In the present invention, the additional member or its formwork is manufactured using a 3D printer that can create free shapes in a short time, so there is no unevenness in the work, and even for additional members with complex shapes, the quality is stable and accurate. additional members can be provided. Since the construction work involves simply installing the additional components on-site, the work is quick and easy, and the number of workers can be reduced compared to conventional methods, and the preparation of materials and machinery can be kept to a minimum.

The surface is, for example, the surface after removing a portion of the concrete structure.
Thereby, the concrete structure can be easily repaired by attaching the additional member after removing the degraded portion of the concrete structure.

In the first and second inventions, the additional member is installed such that a gap is formed between the additional member and the surface, and the gap is filled with a filler . Further , the additional member has a spacer on the surface on the front side .
By creating a gap between the additional member and the surface of the concrete structure and filling this gap with a filler, the shape of the surface of the concrete structure and the shape of the surface side of the additional member must necessarily match. This makes it easier to manufacture additional members. By providing the additional member with a spacer, it becomes easy to install the additional member on the surface of the concrete structure so that the above-mentioned gap is created.

In the third and fourth inventions, the additional member has a through hole that penetrates from the surface side to the front surface . Further, a bolt is provided on the surface, and the additional member is installed on the surface by passing the bolt through the through hole, and a nut is tightened on the tip of the bolt .
By providing a through hole in the additional member, the additional member can be attached by passing a bolt through the through hole , and the additional member can be firmly fixed to the concrete structure using the bolt.

A fifth invention includes a step of measuring the shape of the surface of a concrete structure, and creating a gap for filling a filler between the surface of the concrete structure and the surface of the concrete structure based on the measured shape of the surface. a step of manufacturing an additional member installed on the surface or a mold for manufacturing the additional member using a 3D printer , the additional member having a spacer on a surface on the front side. This manufacturing method is characterized by the following.
A sixth invention provides a step of measuring the shape of the surface of a concrete structure, and an addition installed on the surface using bolts provided on the surface of the concrete structure based on the measured shape of the surface. a step of manufacturing a formwork for manufacturing the member or the additional member using a 3D printer, and the additional member has a through hole that penetrates from the surface side to the front surface for passing the bolt. This manufacturing method is characterized in that a hole is provided at a position corresponding to the bolt.
The fifth and sixth inventions are manufacturing methods for manufacturing the additional member according to the first and third inventions or the formwork according to the second and fourth inventions.

A seventh invention is an information processing device used for manufacturing an additional member installed on a surface of a concrete structure so as to create a gap for filling a filler between the surface of the concrete structure and the surface of the concrete structure. 3D shape data for manufacturing the additional member or a formwork for manufacturing the additional member using a 3D printer is created based on data obtained by measuring the shape of the additional member. This is an information processing device characterized by having a spacer at the bottom .
An eighth invention is an information processing device used for manufacturing an additional member installed on the surface of a concrete structure using bolts provided on the surface, the information processing device using data obtained by measuring the shape of the surface. Based on this, three-dimensional shape data for manufacturing the additional member or a formwork for manufacturing the additional member using a 3D printer is created, and the additional member has a surface on the front side through which the bolt is passed. The information processing device is characterized in that it has a through hole penetrating from the front surface to the front surface at a position corresponding to the bolt.
The seventh and eighth inventions are information processing apparatuses used for manufacturing the additional member according to the first and third inventions or the formwork according to the second and fourth inventions.

According to the present invention, it is possible to provide a construction method and the like that allow easy work.

The figure which shows the manufacturing system 1 of an additional member. FIG. 3 is a diagram showing a hardware configuration of an information processing device 3. FIG. FIG. 3 is a diagram illustrating measurement of the surface of a repaired location 101 of a concrete structure 100. A diagram showing three-dimensional shape data 200, 300 and an additional member 10. FIG. 4 is a diagram illustrating installation of the additional member 10. Examples of additional members 10a, 10b, 10c, and 10d. An example of installing the additional member 10b using the trolley 6. FIG. 3 is a diagram illustrating a repair location 101 of a concrete structure 100 and an additional member 10e. FIG. 3 is a diagram illustrating measurement of the surface of a repaired location 101 of a concrete structure 100. A diagram showing three-dimensional shape data 200, 400, a formwork 40, and an additional member 10f.

Hereinafter, preferred embodiments of the present invention will be described in detail based on the drawings.

[First embodiment]
(1. Manufacturing system 1 for additional member 10)
FIG. 1 is a diagram showing a manufacturing system 1 for an additional member 10 for carrying out a construction method according to an embodiment of the present invention.

The construction method according to the embodiment of the present invention is for repairing the concrete structure 100 by installing the additional member 10 at a predetermined location of the concrete structure 100. The manufacturing system 1 manufactures the additional member 10 using a 3D printer 4, and includes a measuring device 2, an information processing device 3, etc. in addition to the 3D printer 4.

The measuring device 2 measures the shape of the surface of a predetermined location of the concrete structure 100 (the location where the additional member 10 is installed), and is connected to the information processing device 3 via a network such as wireless. As the measuring device 2, a known 3D scanner, drone, etc. can be used. However, it is also possible to actually measure the shape of the surface of the concrete structure 100.

In order to manufacture the additional member 10 using the 3D printer 4, the information processing device 3 creates three-dimensional shape data of the additional member 10 based on the measured surface shape of the concrete structure 100.

FIG. 2 is a diagram showing the hardware configuration of the information processing device 3. As shown in FIG. As shown in FIG. 2, the information processing device 3 can be realized by, for example, a computer configured by connecting a control section 31, a storage section 32, an input section 33, a display section 34, a communication section 35, etc. via a bus. However, the information processing device 3 is not limited to this, and can take various configurations as appropriate.

The control unit 31 is composed of a CPU, ROM, RAM, etc. The CPU calls a program related to processing of the information processing device 3 stored in a storage medium such as the storage unit 32 or ROM into a work area on the RAM and executes the program. ROM is a nonvolatile memory that permanently stores programs such as the boot program and BIOS, as well as data. The RAM is a volatile memory that temporarily holds programs and data loaded from the storage unit 32, ROM, etc., and also includes a work area used by the control unit 31 to perform various processes.

The storage unit 32 is a hard disk drive, solid state drive, flash memory, or the like, and stores programs executed by the control unit 31, data necessary for program execution, an OS, and the like. These programs and data are read and executed by the control unit 31 as necessary.

The input unit 33 is used to input various settings to the information processing device 3.
The display section 34 is, for example, a liquid crystal display.
The communication unit 35 is a communication interface that mediates communication via a network or the like, and communicates with the measuring device 2, the 3D printer 4, etc.

Returning to the explanation of FIG. The 3D printer 4 manufactures the additional member 10 using modeling material (model material). The modeling method executed by the 3D printer 4 is not particularly limited, and a known binder jet method or FDM method (fused deposition modeling) can be applied. As the modeling material, any known material suitable for these modeling methods may be used, and for example, a cement material or a resin material can be used.

In this embodiment, a cement material is used as the modeling material. Cement-based materials include mortar with a general composition, ultra-high strength fiber-reinforced mortar, and ECC (Engineered Cementitious Composite Material).
Composites) etc. can be used. An appropriate cement material should be selected depending on the required durability, etc., such as a material with higher compressive strength than the concrete of the concrete structure 100, or a material of early strength type containing a hardening accelerator. I can do it.

(2. Construction method)
The construction method of this embodiment will be explained using an example in which a part of the concrete structure 100 shown by the dotted line in FIG. 3A is treated as a deteriorated part, and this deteriorated part is repaired. In this embodiment, this deteriorated portion is removed by tearing it off as shown in FIG. 3(b), and the remaining portion after removing the deteriorated portion becomes the repaired portion 101 (the location where the additional member 10 is installed). The concrete structure 100 is, for example, a bridge pier, but is not limited thereto.

In this embodiment, as shown in FIG. 3(c), a bolt 102 for attaching the additional member 10 is embedded in the repair location 101. A plurality of bolts 102 are provided in parallel. Thereafter, as shown in FIG. 3(d), the three-dimensional shape of the surface of the repair location 101 is measured by the measuring device 2. The measurement results are obtained as three-dimensional digital data (hereinafter referred to as three-dimensional shape data).

FIG. 4(a) is an example of three-dimensional shape data 200 of the surface of the repair location 101. In this embodiment, three-dimensional shape data 200 of the surface of the repair location 101 is input to the information processing device 3, and based on this three-dimensional shape data 200, three-dimensional shape data of the additional member 10 is created by the information processing device 3. do.

Here, the input three-dimensional shape data 200 corresponds to the front surface (hereinafter referred to as the back surface) of the repair location 101 in the additional member 10, so the information processing device 3, as shown in FIG. 4(b), It complements the shape of the front surface a of the additional member 10 located on the opposite side of the above surface.

For this shape complementation, the operator may input the shape of the front surface a, and the information processing device 3 may complement the shape of the front surface a according to the operator's input, or an image taken of the vicinity of the repair point 101 may be used. From this, the shape of the front surface a may be automatically generated using image recognition/image processing technology, and shape complementation may be performed.

Furthermore, in this embodiment, the bolt 102 portion of the three-dimensional shape data 200 is penetrated to the front surface a, and the end portion on the front surface a side is expanded in diameter in the bolt radial direction as shown in FIG. 4(c). Form part b. This completes the creation of the three-dimensional shape data 300 of the additional member 10.

The information processing device 3 slices the created three-dimensional shape data 300 into multiple upper and lower layers, and creates slice data for each layer. These slice data are input to the 3D printer 4, and the 3D printer 4 manufactures the additional member 10 corresponding to the three-dimensional shape data 300 using a known modeling method according to the slice data.

FIG. 4(d) is a diagram showing the additional member 10 manufactured by the 3D printer 4. The portion of the bolt 102 in the three-dimensional shape data 300 described above becomes the through hole 11 that penetrates the additional member 10 from the back to the front, and the enlarged diameter portion b becomes the recess 12 on the front surface of the additional member 10.

The additional member 10 is transported from the manufacturing site to the construction site, and a worker at the construction site installs the additional member 10 at a repair location 101 to repair the concrete structure 100.

Note that it is also possible to manufacture the additional member 10 by dividing it into a plurality of parts, which makes transportation of the additional member 10 easier. It is also possible to install the 3D printer 4 at the construction site and immediately install the additional member 10 after it has been manufactured, reducing the time and effort of transportation.

FIG. 5 is a diagram illustrating installation of the additional member 10. In this embodiment, after applying an adhesive (not shown) to the surface of the repair location 101, as shown in FIG. The back side of the additional member 10 is adhered to the surface of the repaired area 101.

Then, as shown in FIG. 5(b), a nut 103 is tightened on the tip of the bolt 102 protruding into the recess 12, and as shown in FIG. 5(c), the recess 12 is filled with a filler 30 such as non-shrink mortar. to smooth the front surface of the additional member 10. As a result, the concrete structure 100 is repaired.

As explained above, in this embodiment, the additional member 10 is manufactured using the 3D printer 4 based on the shape of the surface of the repaired part 101 of the concrete structure 100, and the additional member 10 obtained thereby is attached to the concrete. By attaching it to the surface of the structure 100, the concrete structure 100 is repaired.

In this embodiment, since the additional member 10 is manufactured by the 3D printer 4 that can create a free shape in a short time, there is no unevenness in the work, and even if the additional member 10 has a complicated shape, the quality is stable and accurate. The additional member 10 can be provided quickly. Since the construction work is only to install this additional member 10 on site, the work is short and easy, and the number of workers can be reduced compared to conventional methods, and the preparation of materials and machines can be minimized. .

Further, in this embodiment, by providing the through hole 11 in the additional member 10, the additional member 10 can be attached by passing the bolt 102 through the through hole 11, and by using the bolt 102, the additional member 10 can be attached to the concrete structure 100. It can be firmly fixed.

However, the present invention is not limited to the above embodiments. For example, in this embodiment, the existing concrete structure 100 can be easily repaired by removing the deteriorated part of the concrete structure 100 and then installing the additional member 10 at the repair part 101. By using the 3D printer 4 to manufacture the additional member 10, a simple construction that takes full advantage of the characteristics of the 3D printer 4 is realized, but the construction method of the present invention can also be applied to cases other than repair work. be.

For example, when constructing a new concrete structure 100, it is also possible to use a part of the concrete structure 100 in a position where construction is difficult, etc. as the additional member 10. In this case as well, the shape of the surface of the installation location of the additional member 10 in the concrete structure 100 may be measured by the measuring device 2, and the additional member 10 may be manufactured based on the three-dimensional shape data.

Furthermore, in this embodiment, adhesive is applied to the repaired area 101 and the additional member 10 is bonded, but as shown in FIG. 6(a), there is a gap between the additional member 10a and the surface of the repaired area 101. It is also possible to fill the gap with grout 20 as a filler.

The three-dimensional shape data 300 of the additional member 10a is also based on the three-dimensional shape data 200 of the surface of the repaired part 101 measured by the measuring device 2, such as by moving the back surface of the additional member 10a outward by a certain distance from the surface. It can be created by The shape of the back surface of the additional member 10a does not necessarily have to match the shape of the surface of the repaired portion 101, and there is no need to have irregularities corresponding to the shape, so the additional member 10a can be manufactured easily.

Further, as shown in FIG. 6(b), it is also possible to omit the bolt 102 when installing the additional member 10b, and in this case, the through hole 11 and the recess 12 described above in the additional member 10b are omitted.

Furthermore, as shown in FIG. 6(c), it is also possible to provide a spacer 13 on the back side of the additional member 10c, and by installing the additional member 10c so that the spacer 13 is in contact with the surface of the repair area 101, the repair can be performed. It becomes easy to install the additional member 10c so that there is a gap between the additional member 10c and the surface of the location 101.

In manufacturing the additional member 10c, for example, after creating three-dimensional shape data of the portion of the additional member 10c excluding the spacer 13 based on the three-dimensional shape data 200 of the surface of the repaired part 101 measured by the measuring device 2, The three-dimensional shape data of the spacer 13 is provided at an appropriate location in the three-dimensional shape data. Thereby, three-dimensional shape data 300 of the additional member 10c can be created.

When creating the three-dimensional shape data 300, the flat position of the surface of the repair place 101 is detected from the three-dimensional shape data 200 of the surface of the repair place 101, and the three-dimensional shape is created so that the tip of the spacer 13 is in contact with the detected position. It is also possible to create data 300. Alternatively, it is also possible to manufacture the additional member 10c without the spacer 13, place the spacer on the surface of the repaired area 101, and then install the additional member 10c.

Further, as shown in FIG. 6(d), a through hole (grout injection hole) 14 for filling the gap with grout 20 may be provided so as to penetrate from the back surface to the front surface of the additional member 10d. The through hole 14 can also be used to confirm the filling of the grout 20, and it can also be determined that the gap is sufficiently filled with the grout 20 when the grout 20 overflows from the through hole 14.

In this case as well, after creating three-dimensional shape data for the portion of the additional member 10d excluding the through-hole 14 based on the three-dimensional shape data 200 of the surface of the repair location 101, add Three-dimensional shape data of the through hole 14 penetrating the member 10d is provided. Thereby, three-dimensional shape data 300 of the additional member 10d can be created. Alternatively, it is also possible to first manufacture the additional member 10d without the through hole 14, and then drill the additional member 10d to form the through hole 14.

Further, as shown in FIG. 7, when installing the additional member (additional member 10b in the illustrated example), a cart 6 that holds the additional member at the tip of a movable arm 61 may be used. The arm 61 is also provided with a grout injection device (not shown) for filling the grout 20, and the use of the trolley 6 makes it easy to install additional members even in locations where construction is difficult. In addition, it is also possible to measure the shape of the surface of the repair location 101 by attaching the measuring device 2 to the tip of the arm 61 of the trolley 6 or other moving device.

Further, at a repair location 101 where a deteriorated portion of the concrete structure 100 has been removed, reinforcing materials such as reinforcing bars 111 may be exposed as shown in FIG. 8(a). In this case as well, the three-dimensional shape of the surface of the repair area 101 may be measured in the same manner as described above, and the additional member 10e may be manufactured and installed as shown in FIG. 8(b). FIG. 8(c) shows a horizontal cross section taken along line AA in FIG. 8(b).

In this example, the front surface of the reinforcing bar 111 is measured as the three-dimensional shape of the surface of the repaired spot 101, and the surface of the repaired spot 101 behind the reinforcing bar 111 is not measured, so as shown in FIGS. 8(b) and 8(c). In addition, at a position corresponding to the reinforcing bar 111, the additional member 10e is manufactured and installed so as to reach near the front of the reinforcing bar 111.

Note that after cutting and removing a part of the reinforcing bars 111 exposed at the repair location 101, it is also possible to place new reinforcing bars in the removed portion of the reinforcing bars 111. In this case, after placing the reinforcing bars, the repair location can be removed. The three-dimensional shape of the surface of 101 may be measured by the measuring device 2.

[Second embodiment]
The second embodiment is an example in which, instead of manufacturing the additional member using the 3D printer 4, a formwork for manufacturing the additional member is manufactured using the 3D printer 4.

That is, in this embodiment as well, the deteriorated portion of the concrete structure 100 shown by the dotted line in FIG. 9(a) is removed as shown in FIG. 9(b), and the repaired portion 101 is repaired as shown in FIG. A bolt 102 is embedded, and the shape of the surface of the repaired area 101 is measured as shown in FIG. 9(d).

FIG. 10A is an example of three-dimensional shape data 200 of the surface of the repair location 101. In this embodiment, the information processing device 3 creates three-dimensional shape data 400 of a formwork in which the three-dimensional shape data 200 is the filling surface of the solidifying material, as shown in FIG. 9(b).

The three-dimensional shape data 400 can be created by adding the three-dimensional shape data of the form body portion c to the three-dimensional shape data 200 of the surface of the repair location 101. Note that in this embodiment as well, similarly to the first embodiment, an enlarged diameter portion b is formed in the bolt 102 portion of the three-dimensional shape data 200, and the bolt 102 portion is a through hole that penetrates the additional member from the back side to the front side. 11 (see FIG. 10(e)), and the enlarged diameter portion b becomes the recessed portion 12 (see FIG. 10(e)) on the front surface of the additional member.

The information processing device 3 slices the created three-dimensional shape data 400 into multiple upper and lower layers, and creates slice data for each layer. The slice data is input to the 3D printer 4, and the 3D printer 4 manufactures a mold 40 corresponding to the three-dimensional shape data 400 according to the slice data, as shown in FIG. 10(c).

The additional member to be installed in the repair area 101 is manufactured by pouring and filling the formwork 40 with a solidifying material such as a cement material, as shown in FIG. 10(d), and the manufactured additional member 10f is It is installed at the repair location 101 in the same manner as in the first embodiment.

FIG. 10(e) shows a state in which the additional member 10f is installed at a repair location 101 of the concrete structure 100, and in this embodiment as well, the concrete structure 100 can be easily repaired by using the additional member 10f. be able to. The front surface of the additional member 10f is flat, and from the viewpoint of ease of manufacturing the additional member 10f, the method of this embodiment is particularly suitable for such a case.

Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to such examples. It is clear that those skilled in the art can come up with various changes or modifications within the scope of the technical idea disclosed in this application, and these naturally fall within the technical scope of the present invention. Understood.

1: Manufacturing system 2: Measuring device 3: Information processing device 4: 3D printer 10, 10a, 10b, 10c, 10d, 10e, 10f: Additional members 11, 14: Through hole 12: Recess 13: Spacer 20: Grout 30: Filler 40: Formwork 100: Concrete structure 101: Repair area 102: Bolts 103: Nuts 111: Rebars 200, 300, 400: 3D shape data

Claims (9)

A process of measuring the shape of the surface of a concrete structure,
manufacturing an additional member using a 3D printer based on the measured shape of the surface;
installing the additional member on the surface;
has
The construction method is characterized in that the additional member has a spacer on the surface side, is installed so that a gap is formed between it and the surface, and the gap is filled with a filler material . A process of measuring the shape of the surface of a concrete structure,
a step of manufacturing a formwork using a 3D printer based on the measured shape of the surface;
manufacturing an additional member using the formwork;
installing the additional member on the surface;
has
The construction method is characterized in that the additional member has a spacer on the surface side, is installed so that a gap is formed between it and the surface, and the gap is filled with a filler material . A process of measuring the shape of the surface of a concrete structure,
manufacturing an additional member using a 3D printer based on the measured shape of the surface;
installing the additional member on the surface;
has
a bolt is provided on the surface;
The additional member has a through hole penetrating from the surface side to the front surface, and is installed on the surface by passing the bolt through the through hole, and a nut is tightened to the tip of the bolt. construction method. A process of measuring the shape of the surface of a concrete structure,
a step of manufacturing a formwork using a 3D printer based on the measured shape of the surface;
manufacturing an additional member using the formwork;
installing the additional member on the surface;
has
a bolt is provided on the surface;
The additional member has a through hole penetrating from the surface side to the front surface, and is installed on the surface by passing the bolt through the through hole, and a nut is tightened to the tip of the bolt. construction method. 5. The construction method according to claim 1, wherein the surface is a surface after a portion of the concrete structure has been removed. A process of measuring the shape of the surface of a concrete structure,
Based on the measured shape of the surface, an additional member to be installed on the surface so as to create a gap for filling a filler with the surface of the concrete structure, or for manufacturing the additional member. The process of manufacturing the formwork using a 3D printer,
has
A manufacturing method characterized in that the additional member has a spacer on the front surface side . A process of measuring the shape of the surface of a concrete structure,
Based on the measured shape of the surface, an additional member installed on the surface using bolts provided on the surface of the concrete structure or a formwork for manufacturing the additional member is manufactured using a 3D printer. The process of
has
A manufacturing method characterized in that the additional member has a through hole that penetrates from the front surface to the front surface for passing the bolt at a position corresponding to the bolt . An information processing device used for manufacturing an additional member installed on the surface of a concrete structure so as to create a gap for filling a filler between the surface and the surface of the concrete structure, the information processing device comprising:
Based on the measured data of the surface shape, create three-dimensional shape data for manufacturing the additional member or a formwork for manufacturing the additional member using a 3D printer ,
The information processing device , wherein the additional member has a spacer on the front side surface . An information processing device used for manufacturing an additional member installed on the surface of a concrete structure using bolts provided on the surface, the information processing device comprising:
Based on the measured data of the surface shape, create three-dimensional shape data for manufacturing the additional member or a formwork for manufacturing the additional member using a 3D printer ,
The information processing device is characterized in that the additional member has a through hole that penetrates from the front surface to the front surface, through which the bolt passes, at a position corresponding to the bolt .

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