JP2023012275A - Structure estimation device and method for reinforced concrete structure - Google Patents

Abstract

To provide a structure estimation device and method for a reinforced concrete structure capable of estimating any reinforcing bar diameter of upper layer reinforcing bars and lower layer reinforcing bars of a reinforced concrete structure.SOLUTION: A structure estimation device for reinforced concrete structure includes a hyperbola information acquisition part for acquiring hyperbola information of a waveform in the depth direction of a reflection wave acquired by performing radar scanning perpendicularly to a reinforcement arrangement direction of reinforcing bars of a two-layer structure arranged in contact at an orthogonal intersection embedded in a reinforced concrete structure about two orthogonal directions, an upper layer reinforcing bar diameter acquisition part for acquiring the diameter of an upper layer reinforcing bar, a hyperbola curve information by dielectric constant acquisition part for acquiring hyperbola curve information by dielectric constant with a dielectric constant of concrete as a parameter, a mounting concrete dielectric constant acquisition part for acquiring a mounting concrete dielectric constant being a dielectric constant of the concrete, a hyperbola curve information by lower layer reinforcing bar estimation diameter acquisition part for acquiring hyperbola curve information by lower layer reinforcing bar estimation diameter, and a lower layer reinforcing bar diameter acquisition part for acquiring the diameter of a lower layer reinforcing bar.SELECTED DRAWING: Figure 3B

Description

This application forms the basis for an application claiming internal priority to be filed at a later date.
The present invention is a structure estimation device for a reinforced concrete structure used for estimating the diameter of reinforcing bars of at least two layers arranged in contact at orthogonal intersections in the concrete of a reinforced concrete structure, so-called mesh reinforcing bars, and Regarding the method. It should be noted that the reinforcing bars of the present invention include both reinforcing bars called round bars with a circular cross section and reinforcing bars called deformed bars with uneven surfaces, but in this specification, for the sake of convenience, they are treated as round bars with a circular cross section. It is assumed that

BACKGROUND ART In recent years, many reinforced concrete structures such as buildings and bridges have been reinforced in preparation for a large earthquake that is expected to occur in the near future and as a countermeasure against aging. When performing this reinforcement work, it is necessary to grasp the position and diameter of the reinforcing bars embedded in the concrete of the reinforced concrete structure.

Conventionally, as a method of estimating the diameter of a reinforcing bar that is employed when information about the reinforcing bar cannot be obtained from a design drawing or the like at the time of construction, for example, an estimation method using an electromagnetic wave radar is known. In this reinforcing bar diameter estimation method, as shown in the plan view of FIG. For the floor 0100, which is a structure, first, electromagnetic waves are radiated from the transmission antenna of the electromagnetic wave radar into the concrete C, and the reflected waves reflected by the upper layer reinforcing bars 0101 and the lower layer reinforcing bars 0102 are received by the receiving antenna. to measure the embedding depths (covering depths) of the upper layer reinforcing bars 0101 and the lower layer reinforcing bars 0102 .

Burying depths DU and DL (m) of the upper-layer reinforcing bars 0101 and lower-layer reinforcing bars 0102 are the times TU and TL until the electromagnetic waves radiated from the transmitting antenna are reflected by the upper-layer reinforcing bars 0101 and lower-layer reinforcing bars 0102 and received by the receiving antenna. (s) is multiplied by the velocity V (m/s) of the electromagnetic wave that penetrates the concrete C, and is expressed by Equations (1) and (2).
DU=(1/2)×TU×V Formula 1
DL = (1/2) x TL x V formula 2

At this time, the speed of the electromagnetic wave in the air (vacuum) is 3×10 ⁸ (m/s), and the speed V at which the electromagnetic wave penetrates the concrete C is the specific dielectric constant of the medium concrete C. It is defined and represented by Equation 3. Incidentally, the standard dielectric constant ε _r of neither dry nor wet concrete C is 6-8.
V=(3×10 ⁸ )/(ε _r ) ^1/2 Equation 3

Therefore, the burying depths DU and DL (m) of the upper layer reinforcing bars 0101 and the lower layer reinforcing bars 0102 are expressed by Equations 1 to 3 and Equations 4 and 5.
DU=(1/2)×{(3×10 ⁸ )/(ε _r ) ^1/2 }×TU Equation 4
DL=(1/2)×{(3×10 ⁸ )/(ε _r ) ^1/2 }×TL Equation 5

Then, in this reinforcing bar diameter estimation method, as shown in the enlarged cross-sectional view at the orthogonal intersection 0103 in FIG. φ is estimated.
As a method similar to this reinforcing bar diameter estimating method, for example, there is a reinforcing bar diameter estimating method described in Patent Document 1.

JP-A-5-323026

Here, in the case of reinforced concrete structures such as floors in which reinforcing bars of the same diameter are normally used for the upper and lower layers, and in the case of reinforced concrete structures such as walls that can radiate electromagnetic waves into the concrete from both sides can estimate the diameter of not only upper-layer reinforcing bars but also lower-layer reinforcing bars by the reinforcing-bar diameter estimation method described above.

However, in the above-described conventional reinforcing bar diameter estimation method, when reinforcing bars with different diameters are used for upper layer reinforcing bars and lower layer reinforcing bars (main bars and ties), such as concrete columns, and when electromagnetic waves are radiated inside concrete There is a problem that the diameter of the underlying rebar cannot be estimated when it can only be done on one side of the table, and solving this problem has been a conventional problem.

The present invention has been made to solve the above-described conventional problems, and the upper layer reinforcing bars and the lower layer reinforcing bars in a reinforced concrete structure are arranged in the concrete so that the upper layer reinforcing bars and the lower layer reinforcing bars are in contact with each other at orthogonal intersections. It is an object of the present invention to provide a structure estimation device and method for a reinforced concrete structure capable of estimating the diameter of each reinforcing bar.

In order to solve the above problems, the present invention provides the following structure estimation apparatus and method for a reinforced concrete structure.
That is, the first aspect of the present invention is a reinforced concrete structure in which at least two-layered reinforcing bars arranged in contact at orthogonal intersections are arranged in concrete, and the structure surface is perpendicular to the reinforcing bar arrangement direction of the reinforcing bars embedded in the concrete. A hyperbolic information acquisition unit that acquires hyperbolic information, which is waveform information in the depth direction of the reflected wave acquired by radar scanning, in two orthogonal directions, and a relatively upper layer using the acquired hyperbolic information in the two orthogonal directions The upper layer reinforcing bar diameter acquisition part that acquires the diameter of the reinforcing bar and the hyperbola curve information by relative dielectric constant, which is the information that constitutes the hyperbola curve when multiple relative dielectric constants of concrete used in the reinforced concrete structure are adopted as parameters. Relative permittivity of concrete used in a reinforced concrete structure based on an acquired hyperbola curve information by relative permittivity acquisition unit, a plurality of acquired hyperbola curve information by relative permittivity, and acquired hyperbola information on upper layers and a hyperbola curve by estimated lower layer reinforcing bar diameter with the diameter of the reinforcing bar in the lower layer as an estimation parameter relatively using the obtained specific dielectric constant of the mounted concrete. A hyperbola curve information by estimated diameter of the lower layer reinforcing bars that constitutes the lower layer reinforcing bar estimated hyperbola curve information by diameter Acquisition unit for acquiring hyperbola curve information by estimated diameter of the lower layer reinforcement, the obtained hyperbola curve information by estimated diameter of the plurality of lower layer reinforcing bars, and the hyperbola information of the lower layer of the acquired hyperbola information and a lower-layer reinforcing bar diameter acquisition unit that acquires the diameter of the lower-layer reinforcing bars used in the reinforced concrete structure relative to each other.

A second aspect of the present invention further includes an embedding depth acquiring unit that acquires the embedding depth of the reinforcing bars embedded in the reinforced concrete structure using the acquired hyperbola information and the acquired relative dielectric constant of the mounting concrete. and

Furthermore, in the third aspect of the present invention, the hyperbola information acquisition unit has multiple hyperbola information acquisition means for acquiring hyperbola information in a plurality of two orthogonal directions, and the upper layer reinforcing bar diameter acquisition unit includes multiple hyperbola information acquisition means It is configured to have a statistical upper-layer reinforcing-bar diameter acquiring means for acquiring the diameter of the upper-layer reinforcing bar by statistically processing a plurality of pieces of acquired hyperbola information.

On the other hand, in the operation method of the structure estimation device for a reinforced concrete structure according to the fourth aspect of the present invention, the reinforcing bars of at least two layers contacting with each other at the orthogonal intersection are embedded in the reinforced concrete structure. A hyperbola information acquisition step of acquiring hyperbola information, which is waveform information in the depth direction of the reflected wave acquired by radar scanning the surface of the structure perpendicular to the reinforcing bar arrangement direction, in two orthogonal directions; A hyperbola curve is obtained when multiple relative dielectric constants of the concrete used in the reinforced concrete structure are used as parameters, and a step of obtaining the diameter of the upper layer reinforcing bar relatively using hyperbola information in the orthogonal direction. Based on a step of acquiring hyperbola curve information by relative permittivity, which is information constituting information, a hyperbola curve information by relative permittivity information is acquired, a plurality of acquired hyperbola curve information by relative permittivity, and the acquired hyperbola curve information of the upper layer A mounting concrete relative permittivity acquisition step of acquiring a mounting concrete relative permittivity, which is the relative permittivity of concrete used in a reinforced concrete structure, and a relative diameter of a reinforcing bar in a lower layer using the obtained mounting concrete relative permittivity. a step of obtaining hyperbola curve information by estimated diameter of the lower layer reinforcing bars that constitutes the hyperbola curve by estimated diameter of the lower layer reinforcing bars that constitutes the hyperbola curve by estimated diameter of the lower layer reinforcing bars using as an estimation parameter; and a lower layer reinforcing bar diameter acquiring step of acquiring the diameter of the lower layer reinforcing bar used in the reinforced concrete structure relative to the lower layer hyperbola information of the acquired hyperbola information.

A fifth aspect of the present invention further includes an embedding depth acquisition step of acquiring the embedding depth of the reinforcing bars embedded in the reinforced concrete structure using the acquired hyperbola information and the acquired relative permittivity of the mounting concrete. and

Furthermore, in a sixth aspect of the present invention, the hyperbola information acquisition step includes a multiple hyperbola information acquisition sub-step of acquiring hyperbola information in a plurality of two orthogonal directions, and the upper layer reinforcing bar diameter acquisition step comprises a multiple hyperbola information acquisition sub-step. It is configured to have a statistical upper layer reinforcing bar diameter acquisition substep of acquiring the diameter of the upper layer reinforcing bar by statistically processing the plurality of pieces of hyperbola information acquired by the step.

The method for estimating the structure of a reinforced concrete structure according to the seventh aspect of the present invention is an arrangement of reinforcing bars embedded in a reinforced concrete structure in which at least two-layered reinforcing bars arranged in contact at orthogonal intersections are arranged in concrete. A hyperbola information acquisition program for acquiring hyperbola information, which is waveform information in the depth direction of a reflected wave acquired by radar scanning the surface of the structure perpendicular to the muscle direction, in two orthogonal directions, and the acquired hyperbola in the two orthogonal directions. A program for obtaining the diameter of the upper layer reinforcing bars using information, and information that constitutes a hyperbola curve when multiple relative dielectric constants of concrete used in reinforced concrete structures are used as parameters. A hyperbola curve information acquisition program for each relative dielectric constant for acquiring hyperbola curve information for each relative dielectric constant, a plurality of acquired hyperbola curve information for each relative dielectric constant, and a reinforced concrete structure based on the acquired hyperbola curve information for upper layers. A mounting concrete relative permittivity acquisition program for acquiring the mounting concrete relative permittivity, which is the relative permittivity of the concrete used, and a relative estimation parameter for the diameter of the lower layer reinforcing bar using the obtained mounting concrete relative permittivity. a hyperbola curve information by estimated diameter of the lower layer reinforcing bar that composes the hyperbola curve by estimated diameter of the lower layer reinforcing bar obtained by obtaining and a lower layer reinforcing bar diameter acquisition program for acquiring the diameter of the lower layer reinforcing bar used in the reinforced concrete structure relative to the hyperbola information of the lower layer of the hyperbola information.

An eighth aspect of the present invention further includes an embedding depth acquisition program for acquiring the embedding depth of the reinforcing bars embedded in the reinforced concrete structure using the acquired hyperbola information and the acquired specific permittivity of the mounting concrete. and

Furthermore, in a ninth aspect of the present invention, the hyperbola information acquisition program has a multiple hyperbola information acquisition subprogram that acquires hyperbola information in a plurality of two orthogonal directions, and the upper layer reinforcing bar diameter acquisition program includes a multiple hyperbola information acquisition subprogram. It is configured to have a statistical upper layer reinforcing bar diameter acquisition subprogram that acquires the diameter of the upper layer reinforcing bar by statistically processing a plurality of pieces of hyperbola information acquired by the program.

Effect of the Invention According to the present invention, in a reinforced concrete structure, it is possible to obtain a very excellent effect of being able to estimate the diameter of each reinforcing bar of the upper layer reinforcing bar and the lower layer reinforcing bar that are in contact with each other at the orthogonal crossing point and are arranged inside the concrete. be done.

Plan view of the floor, which is a reinforced concrete structure Enlarged cross-sectional view at the orthogonal intersection of the upper layer reinforcing bars and the lower layer reinforcing bars in the reinforced concrete structure of FIG. 1A Diagram for explaining the hardware configuration Schematic configuration diagram of structure estimation device for reinforced concrete structure and electromagnetic wave radar according to Embodiment 1 Functional block diagram of structure estimation device for reinforced concrete structure in Embodiment 1 Schematic diagram explaining why hyperbolic waveforms are formed on a two-dimensional image by the radiation of electromagnetic waves to the reinforcing bars of a reinforced concrete structure. A diagram showing the characteristics of a hyperbola waveform formed on a two-dimensional image by the radiation of electromagnetic waves to the reinforcing bars of a reinforced concrete structure. Schematic diagram specifically showing the function of an upper layer reinforcing bar diameter acquisition unit in the structure estimation apparatus for a reinforced concrete structure of Embodiment 1. FIG. Schematic diagram showing the relationship between the dielectric constant _εr of concrete and the hyperbola figure Schematic diagram specifically showing the function of the specific permittivity acquisition unit of the mounted concrete in the structure estimation device for the reinforced concrete structure of the first embodiment. Table showing a plurality of databased hyperbola figures in the structure estimation device for a reinforced concrete structure of Embodiment 1 Schematic diagram specifically showing the function of a lower-layer reinforcing bar diameter acquiring unit in the structure estimation apparatus for a reinforced concrete structure according to the first embodiment. A diagram showing a hardware configuration example of a structure estimation device for a reinforced concrete structure according to the first embodiment. Processing flowchart of structure estimation device for reinforced concrete structure in Embodiment 1 Functional block diagram of structure estimation device for reinforced concrete structure in Embodiment 2 A diagram showing a hardware configuration example of a structure estimation apparatus for a reinforced concrete structure according to the second embodiment. Processing flowchart of structure estimation device for reinforced concrete structure in Embodiment 2 Functional block diagram of structure estimation device for reinforced concrete structure in Embodiment 3 Schematic diagram specifically showing the function of a plurality of hyperbola information acquisition means in the structure estimation apparatus for a reinforced concrete structure of Embodiment 3 A diagram showing a hardware configuration example of a structure estimation apparatus for a reinforced concrete structure according to Embodiment 3. Processing flowchart of structure estimation device for reinforced concrete structure in Embodiment 3

Embodiments of the present invention are described below. The mutual relationship between the embodiments and the claims is as follows. Embodiment 1 mainly relates to claims 1, 4 and 7, embodiment 2 mainly relates to claims 2, 5 and 8, and embodiment 3 mainly relates to claims 3, 6 and 9.
The present invention is by no means limited to these embodiments, and can be embodied in various forms without departing from the scope of the invention.

<Hardware that can constitute the present invention>
The present invention is an invention that uses a computer in principle, but is realized by software, by hardware, and by cooperation of software and hardware. The hardware that implements all or part of each component of the present invention comprises a CPU, a memory, a bus, an input/output device, various peripheral devices, a user interface, etc., which are the basic components of a computer. Various peripheral devices include storage devices, interfaces such as the Internet, devices such as the Internet, displays, keyboards, mice, speakers, cameras, videos, televisions, and various sensors (flow rate Sensors, temperature sensors, weight sensors, liquid level sensors, infrared sensors, shipping counters, packing counters, foreign matter inspection equipment, defective product counters, radiation inspection equipment, surface condition inspection equipment, circuit inspection equipment, human sensors , worker work status grasping device (video, ID, PC work load, etc.), CD device, DVD device, Blu-ray device, USB memory, USB memory interface, detachable hard disk, general hard disk, projector device , SSD, telephone, facsimile, copier, printer, movie editing device, and various sensor devices.

Further, the system of the present invention does not necessarily have to be configured by one housing, and may be configured by connecting a plurality of housings through communication. Also, the communication may be LAN, WAN, wifi (registered trademark), Bluetooth (registered trademark), infrared communication, or ultrasonic communication, and some may be installed across national borders. Furthermore, each of the plurality of enclosures may be operated by a different entity, or may be operated by one entity. It does not matter whether the system of the present invention is operated by a single entity or a plurality of entities. In addition to the system of the present invention, the invention can be configured as a system including a terminal used by a third party and a terminal used by another third party. Also, these terminals may be installed across national borders. Furthermore, in addition to the system and the terminal of the present invention, related information of a third party, a device used for registering a related person, a device used for a database for recording the contents of registration, etc. are prepared. may These may be provided in the system of the present invention, or the system of the present invention may be configured so that these information can be provided outside the system of the present invention.

As shown in FIG. 2, the computer comprises a chipset, CPU, non-volatile memory, main memory, various buses, BIOS, various interfaces, a real-time clock, etc., which are configured on the motherboard. These operate in cooperation with the operating system, device drivers, various programs, and the like. Various programs and various data constituting the present invention are configured to efficiently use these hardware resources to execute various processes.

≪Chipset≫
A "chipset" is a large-scale integrated circuit (LSI) set that integrates a bridge function, which is mounted on a computer's motherboard and integrates a communication function between the CPU's external bus and a standard bus that connects memory and peripheral devices. be. There are cases where a 2-chipset configuration is adopted and cases where a 1-chipset configuration is adopted. A north bridge is provided on the side closer to the CPU and main memory, and a south bridge is provided on the side of the interface with a relatively low-speed external I/O on the far side.

(Northbridge)
The northbridge includes a CPU interface, memory controller, and graphics interface. Most of the conventional northbridge functions may be performed by the CPU. The north bridge is connected to the memory slot of the main memory via a memory bus, and is connected to the graphics card slot of the graphics card via a high-speed graphics bus (AGP, PCI Express).

(South Bridge)
The south bridge is connected to a PCI interface (PCI slot) via a PCI bus, and has an I/O function with an ATA (SATA) interface, a USB interface, an Ethernet interface, etc., and a sound function. Incorporating circuits that support PS/2 ports, floppy disk drives, serial ports, parallel ports, and ISA buses that do not require or cannot operate at high speed will hinder the speed of the chipset itself. Therefore, it may be separated from the south bridge chip and assigned to another LSI called a super I/O chip. A bus is used to connect a CPU (MPU) with peripheral devices and various control units. The bus is connected by a chipset. The memory bus used for connection with the main memory may adopt a channel structure instead of this in order to increase the speed. A serial bus or a parallel bus can be adopted as the bus. In contrast to the serial bus, which transfers data bit by bit, the parallel bus batches the original data itself or multiple bits extracted from the original data and transmits them simultaneously through multiple communication channels. A dedicated line for the clock signal is provided in parallel with the data line to synchronize data demodulation at the receiving end. GPIB, IDE/(parallel) ATA, SCSI, PCI, etc. are also used as a bus connecting a CPU (chipset) and an external device. Since there is a limit to speeding up, the data line may be a serial bus in PCI Express, an improved version of PCI, or Serial ATA, an improved version of parallel ATA.

≪CPU≫
The CPU sequentially reads, interprets, and executes a sequence of instructions called a program on the main memory, thereby outputting information consisting of signals to the main memory as well. The CPU functions as the center of computation within the computer. The CPU consists of a CPU core portion which is the center of calculation and its peripheral portions. An interface with a connection bus with a bridge and the like are included. A plurality of CPU cores may be provided in one CPU (chip). Also, processing may be performed by a graphic interface (GPU) or FPU in addition to the CPU.

≪Nonvolatile memory≫
(HDD)
The basic structure of a hard disk drive consists of a magnetic disk, a magnetic head, and an arm on which the magnetic head is mounted. The external interface can adopt SATAA (ATA in the past). A sophisticated controller, such as SCSI, is used to support communication between hard disk drives. For example, when copying a file to another hard drive, the controller can read sectors and transfer them to the other hard drive for writing. At this time, the memory of the host CPU is not accessed. Therefore, there is no need to increase the load on the CPU.
As a non-volatile memory, an SSD composed of "NAND flash" may be employed together with the HDD, or may be employed in place of the HDD.

≪Main memory≫
The CPU directly accesses and executes various programs on the main memory. The main memory is a volatile memory, and a DRAM is used. A program on the main memory is expanded from the non-volatile memory onto the main memory in response to a program activation instruction. After that, the CPU executes the program according to various execution instructions and execution procedures in the program.

≪Operating System (OS)≫
The operating system is used to manage applications to use resources on the computer, to manage various device drivers, and to manage the computer itself, which is hardware. Some small computers use firmware as the operating system.

<Device driver>
A device driver is a program that controls device hardware to make various devices attached to a computer available to users and applications via the operating system.

«BIOS»
BIOS is the hardware that causes the CPU to execute the procedure for booting up the computer hardware and running the operating system. Most typically, it is the hardware that the CPU first reads when it receives a computer boot command. . Here, the address of the operating system stored in the disk (non-volatile memory) is described, and the operating system is sequentially developed in the main memory by the BIOS developed in the CPU and becomes operational. The BIOS also has a check function for checking the presence or absence of various devices connected to the bus. The results of the checks are saved in main memory and made available by the operating system as appropriate. Note that the BIOS may be configured to check external devices and the like.

<<I/O Controller>>
The I/O controller is used for connection with external devices. A USB connector is one such example.

<<USB, IEEE1394 connector, LAN terminal, etc.>>
USB, IEEE1394 connector, LAN terminal, etc. are interfaces of the most representative communication standards.

The configuration described above is commonly used in the description of the hardware configuration in all the embodiments in the specification of the present application.
<Embodiment 1>

This embodiment mainly relates to claims 1, 4 and 7.
<Overview of Structure Estimation Apparatus for Embodiment 1 Reinforced Concrete Structure>

The structure estimation apparatus for a reinforced concrete structure according to the present embodiment radiates electromagnetic waves into the concrete of the reinforced concrete structure, and reflects them from the upper layer reinforcing bars and the lower layer reinforcing bars that are arranged so as to contact each other at an orthogonal intersection inside the concrete. So-called hyperbola information, which is waveform information of the reflected waves in the depth direction, is obtained for each of the upper-layer reinforcing bars and the lower-layer reinforcing bars by receiving the reflected waves that return.

In such a structure estimation device for a reinforced concrete structure, since the hyperbola information of the upper layer reinforcing bars and the lower layer reinforcing bars that are in contact with each other at the orthogonal cross point and are arranged inside the concrete of the reinforced concrete structure is acquired, not only the reinforcing bar diameter of the upper layer reinforcing bars but also the This has the effect of estimating the reinforcing bar diameter of the lower layer reinforcing bar.
<Embodiment 1 Structural Estimation Apparatus Configuration for Reinforced Concrete Structure>

As shown in FIG. 3A, a structure estimation device 0360 for a reinforced concrete structure of the present embodiment is a computer such as a laptop computer, and the inside of concrete C of a reinforced concrete structure (the floor of a building in this embodiment) 0300 This is an apparatus for estimating each diameter of upper and lower layer reinforcing bars 0301 and lower layer reinforcing bars 0302 arranged so as to contact each other at an orthogonal intersection 0303 using a truck-like electromagnetic wave radar 0350 . In this embodiment, the structure estimation device 0360 and the electromagnetic wave radar 0350 are configured to transmit and receive data via a wireless LAN. It is done in a state where there is no
In this embodiment, the case where the reinforcing bar group arranged inside the concrete C has two upper and lower layers is illustrated, but the case where the reinforcing bar group has three or more layers is naturally applicable.
Further, the structure estimation device 0360 and the electromagnetic wave radar 0350 may be configured to transmit and receive data via a cable, or may be configured to transmit and receive data via a memory such as a USB. good.

The carriage-shaped electromagnetic wave radar 350 is a radar that scans the surface of the structure perpendicular to the reinforcing direction of the upper layer reinforcing bars 0301 and the lower layer reinforcing bars 0302. A transmitting antenna 0351 that radiates electromagnetic waves toward the inside of the concrete C. , the upper layer reinforcing bar 0301 and the lower layer reinforcing bar 0302, respectively. A radar screen 0353 is mounted to display the waveform of electromagnetic waves that are reflected by 0302 and return to the receiving antenna 0352 . In this case, the wheel 0354 incorporates a rangefinder so that the distance from the transmitting position to the receiving position when scanning the surface of the structure with radar can be known. Note that the movement speed at which the electromagnetic wave radar 350 performs radar scanning does not affect the estimation of the diameters of the reinforcing bars of the upper layer and the lower layer. good too.

When the electromagnetic wave radar 350 is used to perform radar scanning on the surface of the structure, the electromagnetic wave radar 350 is moved perpendicularly to the reinforcing bar arrangement direction of the upper layer reinforcing bars 0301 and perpendicularly to the reinforcing bar arrangement direction of the lower layer reinforcing bars 0302. need to move.
In determining the direction to move the electromagnetic wave radar 350 , first, by performing radar scanning with the electromagnetic wave radar 350 , the bar arrangement positions of the upper layer reinforcing bars 0301 and the lower layer reinforcing bars 0302 are grasped. Then, on the surface of the structure, a ruled line La is drawn between the upper layer reinforcing bars 0301 whose bar arrangement positions are determined, and a ruled line Lb is drawn between the lower layer reinforcing bars 0302 whose bar arrangement positions are similarly determined. , the electromagnetic wave radar 350 is automatically or manually moved.

Here, if the electromagnetic wave radar 350 is self-propelled, it may be moved using a GPS (Global Positioning System) for radar scanning outdoors such as on the roof of a building or on a bridge. Further, for example, in radar scanning indoors such as the floor of a building, a plurality of beacons are arranged inside the building, and a receiving terminal for the beacon is mounted on the electromagnetic wave radar 350 so that it can be moved while being guided by the plurality of beacons. can be
<Embodiment 1 Configuration Functional Blocks>

As shown in FIG. 3B, the structure estimation device 0360 for a reinforced concrete structure of the present embodiment includes a hyperbola information acquisition unit 0361, an upper layer reinforcing bar diameter acquisition unit 0362, a hyperbola curve information acquisition unit 0363 by relative permittivity, a mounting concrete It has a relative permittivity acquisition unit 0364 , a lower layer reinforcing bar estimated diameter hyperbola curve information acquisition unit 0365 , and a lower layer reinforcing bar diameter acquisition unit 0366 .
<Embodiment 1 Configuration Functional Block Hyperbola Information Acquisition Unit>

The "Hyperbola information acquisition unit 0361" radiates electromagnetic waves from the transmission antenna 0351 of the electromagnetic wave radar 0350 toward the inside of the concrete C, and the upper and lower two layers arranged in the concrete C so as to contact at the orthogonal intersection 0303 The receiving antenna 0352 receives reflected waves reflected back from the upper layer reinforcing bars 0301 and the lower layer reinforcing bars 0302, respectively, thereby obtaining hyperbolic information, which is waveform information in the depth direction of the reflected waves of the upper layer reinforcing bars 0301 and the lower layer reinforcing bars 0302.

Here, when the electromagnetic wave radar 350 is moved orthogonally to the reinforcing bar arrangement direction of the upper layer reinforcing bars 0301, the electromagnetic wave radiated from the transmitting antenna 0351 into the concrete C spreads in both the advancing direction and the retreating direction. Therefore, as shown in the two-dimensional image (cross-sectional image) of FIG. will be received. At this time, on the radar screen 0353 of the electromagnetic wave radar 350, the 1/2 time t1 until the electromagnetic wave radiated at the position P1 returns as the reflected wave R1 or the distance d1 to the upper reinforcing bar 0301 is displayed directly below the position P1. It has become so. The 1/2 time t2 until the electromagnetic wave returns as a reflected wave or the distance d2 from the electromagnetic wave radar 0350 to the upper layer reinforcing bar 0301 becomes the shortest when the electromagnetic wave radar 0350 passes the position P2 directly above the upper layer reinforcing bar 0301, and then , when the electromagnetic wave radar 0350 passes through the position P3, it receives an oblique reflected wave from the rear upper layer reinforcing bar 0301, and on the radar screen 0353 of the electromagnetic wave radar 350, the electromagnetic wave radiated at the position P3 is reflected wave R3 Half of the 1/2 time t3 to return is converted to the distance d3 to the upper layer reinforcing bar 0301 and displayed immediately below the position P3.
As a result, the radar screen 0353 displays a bilaterally symmetrical chevron waveform peaking at the upper reinforcing bar 0301, that is, a hyperbolic waveform (information) that is waveform information in the depth direction.
The image processing of this radar information is generally described as follows. For example, the position of the bottom center of gravity of a cart equipped with an electromagnetic wave radar is the origin position of radar radiation, and the reflection time from the rebar by the radar as a function of the position on the straight line from this origin position (a constant multiple of the round-trip time or one-way time) Alternatively, it expresses the embedding depth (concrete thickness) of the reinforcing bar when it is assumed that there is a reinforcing bar directly under the origin.

As shown in the upper part of FIG. 3D, this hyperbolic waveform becomes a hyperbolic waveform 1 with the sharpest top of the mountain when the reinforcing bar is buried deep. It is characterized by hyperbolic waveforms 2, 3, 4 with loose tops. Furthermore, as shown in the lower part of FIG. 3D , the hyperbolic waveform has the characteristic of becoming a hyperbolic waveform 5 with a sharp peak in the case of a thin reinforcing bar, and a hyperbolic waveform 6 with a loose peak in the case of a thick reinforcing bar. .

By moving the electromagnetic wave radar 0350 perpendicularly to the reinforcing bar arrangement direction of the lower layer reinforcing bars 0302 in the same manner as in the case of the upper layer reinforcing bars 0301, a symmetrical chevron waveform peaking at the lower layer reinforcing bars 0302 is displayed on the radar screen 0353. That is, a hyperbolic waveform (information), which is waveform information in the depth direction, is displayed.
<Embodiment 1 Configuration, Function Block, Upper Layer Reinforcing Bar Diameter Acquisition Unit>

The “upper layer reinforcing bar diameter acquisition unit 0362 ” acquires relative information on the diameter of the upper layer reinforcing bar 0301 using hyperbola information in two orthogonal directions acquired by the hyperbola information acquisition unit 0361 .

Specifically, as shown in FIG. 3E, the hyperbolic waveform WU of the upper layer reinforcing bar 0301 and the hyperbolic waveform WL of the lower layer reinforcing bar 0302 acquired by the hyperbola information acquisition unit 0361 are compared, and the difference between the vertexes of the upper layer reinforcing bar 0301 diameter information If is acquired.
The diameter information If of the upper layer reinforcing bar 0301 obtained by the upper layer reinforcing bar diameter obtaining unit 0362 is obtained using concrete C with a standard dielectric constant _εr of 6 to 8.

In addition, in the upper layer reinforcing bar diameter acquisition unit 0362, in order to acquire the specific dielectric constant of the mounted concrete described later, on the radar screen 0353 of the electromagnetic wave radar 0350, a hyperbola figure that simulates a hyperbola waveform using the embedded depth and diameter of the reinforcing bar as parameters is displayed. By performing curve fitting to the hyperbola waveform, which is the hyperbola information of the upper layer reinforcing bar 0301 acquired by the hyperbola information acquisition unit 0361, a hyperbola figure that best fits the hyperbola waveform of the upper layer reinforcing bar 0301 is obtained.
<Embodiment 1 Configuration Functional Block Hyperbolic Curve Information Acquisition Unit by Relative Permittivity>

The ``hyperbola curve information acquisition unit by relative permittivity 0363'' is information that constitutes a hyperbola figure (curve) when a plurality of relative permittivity ε _r of concrete used in a reinforced concrete structure is used as a parameter. Get hyperbola curve information by rate.

Here, as schematically shown in the upper part of FIG. 3F, in the process in which the electromagnetic wave radar 0350 moves on the surface of the structure from position P1 to position P3 through position P2 directly above the upper layer reinforcing bars 0301, the specific permittivity ε The reflection time T ₁ indicated by the dashed line from the upper layer reinforcing bar ₀₃₀₁ when _r is small is 1T ₁ at position P2 and 2T ₁ at positions 1 and 3, whereas the upper layer The reflection time T2 indicated by the _two -dot chain line from the reinforcing bar 0301 is 2T2 at the position P2 and _4T2 at the positions 1 and ₃ .
That is, as shown in the lower part of FIG. 3F, between the relative permittivity _εr of the concrete and the hyperbola figure, when the relative permittivity _εr of the concrete is small, the hyperbola waveform shown by the one-dot chain line with the top of the chevron is loose. On the other hand, when the specific dielectric constant _εr of concrete is large, there is a relationship that the top of the mountain becomes a hyperbolic waveform indicated by a two-dot chain line with a sharp peak.

The relative permittivity-dependent hyperbola curve information acquisition unit 0363 acquires the relative permittivity-dependent hyperbola curve information forming the hyperbola figure based on the relationship between the relative permittivity ε _r of the concrete and the hyperbola figure.
<Embodiment 1 Configuration Functional Block Mounted Concrete Relative Permittivity Acquisition Unit>

The "mounted concrete relative permittivity acquisition unit 0364" acquires a plurality of hyperbola curve information by relative permittivity acquired by the hyperbola curve information by relative permittivity acquisition unit 0363, and the hyperbola information of the upper layer acquired by the hyperbola information acquisition unit 0361 ( diameter) and the specific dielectric constant of the concrete used in the reinforced concrete structure is obtained.

In this mounted concrete relative permittivity acquisition unit 0364, the above-mentioned hyperbola figure is given the reinforcing bar diameter and depth acquired by the hyperbola information acquisition unit, and curve fitting is performed to the hyperbola waveform of the upper layer reinforcing bar also acquired by the hyperbola information acquisition unit, As shown in FIG. 3G, the hyperbola figure F1 indicated by the two-dot chain line passes through the hyperbola figure F2 indicated by the one-dot chain line and matches the hyperbola waveform W of the upper layer reinforcing bar, so that the ratio obtained by the hyperbola curve information acquisition unit by relative permittivity By adjusting the relative permittivity based on the hyperbola curve information by permittivity, the relative permittivity of the mounting concrete is obtained.

At this time, as shown in FIG. 3H, the hyperbola figure is stored in the database based on the above-described "characteristic that the top of the mountain in the hyperbola waveform changes in speed according to the depth of the reinforcing bar buried depth and the thickness of the reinforcing bar". It is possible to select one suitable for curve fitting with the hyperbola waveform of the upper layer reinforcing bar 0301 from a plurality of transformed hyperbola figures.
<Embodiment 1 Configuration Functional Block Hyperbola Curve Information Acquisition Unit by Estimated Diameter of Lower Layer Reinforcement>

The ``lower layer reinforcing bar estimated diameter hyperbola curve information acquisition unit 0365'' uses the mounted concrete relative dielectric constant acquired by the mounted concrete relative dielectric constant acquisition unit 0364 to estimate the lower layer reinforcing bar with the diameter of the lower layer reinforcing bar as an estimation parameter. Obtain the hyperbola curve information by diameter of the estimated lower reinforcing bar that constitutes the hyperbola curve by diameter. Specifically, a hyperbola figure for each lower layer reinforcing bar estimated diameter is obtained using the mounting concrete relative permittivity obtained by the mounting concrete relative permittivity obtaining unit 0364 and the hyperbola figure obtained from the upper layer reinforcing bar.
<Embodiment 1 Configuration, Function Blocks, Lower Layer Reinforcement Diameter Acquisition Unit>

The "lower layer reinforcing bar diameter acquisition unit 0366" is a plurality of hyperbola curve information by lower layer reinforcing bar estimated diameter (hyperbola figure) acquired by the lower layer reinforcing bar estimated diameter hyperbola curve information acquisition unit 0365, and the hyperbola information acquired by the hyperbola information acquisition unit 0361. Based on the hyperbola information (hyperbola waveform) of the lower layer reinforcing bars, the diameter of the lower layer reinforcing bars used in the reinforced concrete structure is relatively acquired.

In this lower layer reinforcing bar diameter acquisition unit 0366, as shown in the upper part of FIG. In the state where the top of the mountain shape of the hyperbola figure F shown by determines that the lower layer reinforcing bar 0302 is thicker than the upper layer reinforcing bar 0301 . In addition, in FIG. 3I, for convenience, the upper layer reinforcing bars and the lower layer reinforcing bars are shown in the same direction.
At this time, as shown in the middle part of FIG. 3I, when the top of the mountain shape of the hyperbolic waveform W matches the top of the mountain shape of the hyperbola figure F, it is determined that the diameter 0302 of the lower layer reinforcing bar is the same as the diameter of the upper layer reinforcing bar 0301, As shown in the lower part of FIG. 3I, when the top of the mountain of the hyperbola waveform W is sharper than the top of the mountain of the hyperbola figure F, it is determined that the lower layer reinforcing bar 0302 is thinner than the upper layer reinforcing bar 0301 .

Then, if the result of the above determination is that the hyperbola figure does not match the hyperbola waveform, the lower layer reinforcing bar diameter acquisition unit 0366 adjusts the diameter of the hyperbola figure so that both match. Estimate the rebar diameter.
<Embodiment 1 Structural Estimation Apparatus for Reinforced Concrete Structure Hardware Configuration>

As shown in FIG. 4, a structure estimation device 0460 for a reinforced concrete structure of this embodiment is composed of a CPU 0461, a non-volatile memory 0462 such as an HDD or ROM, a main memory 0463 such as a D-RAM, and an interface. ing. In the nonvolatile memory 0462, as programs, a hyperbola information acquisition program, an upper layer reinforcing bar diameter acquisition program, a hyperbola curve information acquisition program by relative permittivity, a mounted concrete relative permittivity acquisition program, a hyperbola curve information acquisition program by estimated diameter of lower layer reinforcement, a lower layer Stores a rebar diameter acquisition program. The data is current signal and phase angle information, and these programs and data are read into the holding area of the main memory 0463 and executed in the operating area. Further, the interface includes specific low-power radio and the like.
<Embodiment 1 Structural Estimation Apparatus for Reinforced Concrete Structure Process Flow>

In the structure estimation apparatus for a reinforced concrete structure of this embodiment, as shown in FIG. Hyperbolic information, which is waveform information in the depth direction of reflected waves obtained by radar-scanning the surface of the structure perpendicular to the reinforcement direction of the reinforcing bars embedded in the structure, is obtained in two orthogonal directions.
Next, the upper layer reinforcing bar diameter acquisition step S0502 is executed to acquire the diameter of the relatively upper layer reinforcing bar using the acquired hyperbola information in the two orthogonal directions. Hyperbola curve information by relative permittivity, which is information constituting a hyperbola curve when a plurality of relative permittivity values of concrete used in a reinforced concrete structure are adopted as parameters, is acquired.
Subsequently, the mounting concrete relative permittivity acquisition step S0504 is executed, and based on the acquired hyperbola curve information by relative permittivity and the acquired hyperbola information of the upper layer, it is used for the reinforced concrete structure. A mounting concrete relative permittivity, which is the relative permittivity of concrete, is obtained.
Then, a step S0505 for obtaining estimated lower layer reinforcing bar diameter hyperbola curve information is executed, and the obtained mounting concrete relative permittivity is used to configure a lower layer reinforcing bar estimated diameter hyperbola curve using the diameter of the lower layer reinforcing bar as an estimated parameter. After the lower layer reinforcing bar estimated diameter hyperbola curve information is acquired, the lower layer reinforcing bar diameter acquisition step S0506 is executed, and the acquired plurality of lower layer reinforcing bar estimated diameter individual hyperbola curve information and the hyperbola information of the lower layer of the acquired hyperbola information , the diameter of the lower reinforcing bar used in the reinforced concrete structure is obtained.
<Embodiment 1 Structural Estimation Device Effect of Reinforced Concrete Structure>

The structure estimation apparatus for a reinforced concrete structure according to the present embodiment acquires the hyperbola waveform, which is the hyperbola information of the upper layer reinforcing bars and the lower layer reinforcing bars that are arranged inside the concrete of the reinforced concrete structure and are in contact with each other at an orthogonal intersection. It is possible to estimate not only the reinforcing bar diameter of the upper layer reinforcing bar but also the reinforcing bar diameter of the lower layer reinforcing bar based on the respective hyperbola waveforms of the upper layer reinforcing bar and the lower layer reinforcing bar.
<Embodiment 2>

This embodiment mainly relates to claims 2, 5 and 8.
<Overview of Structure Estimation Apparatus for Embodiment 2 Reinforced Concrete Structure>

This embodiment is based on the first embodiment, and further includes an embedding depth acquisition unit that acquires the embedding depth of the reinforcing bars embedded in the reinforced concrete structure using the acquired hyperbola information and the acquired relative permittivity of the mounting concrete. It is characterized by
<Embodiment 2 Structural Estimation Apparatus Configuration for Reinforced Concrete Structure>

As shown in FIG. 6, the structure estimating device 0660 of this embodiment differs from the previous embodiment in that it further has an burial depth acquisition unit 0667, and the other configuration is the same as that of the previous embodiment. is the same as

Specifically, in this burial depth acquisition unit ₀₆₆₇ , as the relative permittivity εr included in the waveform information in the depth direction of each reflected wave of the upper layer reinforcing bar and the lower layer reinforcing bar acquired by the hyperbolic information acquisition unit 0661, the mounting concrete ratio By using the relative permittivity of the mounting concrete acquired by the permittivity acquisition unit 0664, the embedding depth of the upper layer reinforcing bars and the embedding depth of the lower layer reinforcing bars based thereon are acquired.
<Embodiment 2 Structural Estimation Apparatus for Reinforced Concrete Structure Hardware Configuration>

As shown in FIG. 7, a structure estimation device 0760 for a reinforced concrete structure of the present embodiment includes a CPU 0761, a non-volatile memory 0762 such as an HDD or ROM, a main memory 0763 such as a D-RAM, and an interface. ing. In the nonvolatile memory 0762, as programs, a hyperbola information acquisition program, an upper layer reinforcing bar diameter acquisition program, a hyperbola curve information acquisition program by relative permittivity, a mounted concrete relative permittivity acquisition program, a hyperbola curve information acquisition program by estimated diameter of lower layer reinforcement, a lower layer A rebar diameter acquisition program and burial depth acquisition program are stored. The data is current signal and phase angle information, and these programs and data are read into the holding area of the main memory 0763 and executed in the operating area. Further, the interface includes specific low-power radio and the like.
<Embodiment 2 Structural Estimation Apparatus for Reinforced Concrete Structure Process Flow>

In the structure estimation device for a reinforced concrete structure of the present embodiment, as shown in FIG. After the diameter of the lower layer reinforcing bars used in the reinforced concrete structure is acquired relatively based on the hyperbola information of the lower layer, the burial depth acquisition step S0807 is executed, and acquired by executing the hyperbola information acquisition step S0801 The embedding depth of the reinforcing bars embedded in the reinforced concrete structure is acquired using the hyperboler information and the relative permittivity of the mounted concrete acquired in the implementation of the relative permittivity of the implemented concrete acquisition step S0804.
<Embodiment 2 Structural Estimation Device Effect of Reinforced Concrete Structure>

In the structure estimation apparatus for a reinforced concrete structure according to the present embodiment, in addition to the diameters of the upper layer reinforcing bars and the lower layer reinforcing bars that are placed inside the concrete of the reinforced concrete structure and are in contact with each other at an orthogonal intersection, the embedding depth of the reinforcing bars is also determined. It is effective in being able to estimate.
<Embodiment 3>

This embodiment mainly relates to claims 3, 6 and 9.
<Overview of Structure Estimation Apparatus for Embodiment 3 Reinforced Concrete Structure>

This embodiment is based on Embodiments 1 and 2, and acquires a plurality of hyperbolic information in two orthogonal directions by radiating electromagnetic waves into the concrete of a reinforced concrete structure, and statistically processes the acquired hyperbolic information. , and is characterized in that it is configured to acquire the diameter of the upper layer reinforcing bar.
In this embodiment, hyperbola information in a plurality of two orthogonal directions is acquired, so that the accuracy of estimating the diameter of the upper layer reinforcing bar can be improved.
<Embodiment 3 Structural Estimation Apparatus Configuration for Reinforced Concrete Structure>

As shown in FIG. 9A, in the structure estimation device 0960 of this embodiment, the difference from the previous embodiment is that a hyperbola information acquisition unit 0961 acquires hyperbola information in a plurality of two orthogonal directions. 0961a, and has a statistical upper layer reinforcing bar diameter acquiring means 0962a for acquiring the diameter of the upper layer reinforcing bar by statistically processing a plurality of hyperbola information acquired by the upper layer reinforcing bar diameter acquiring unit 0962 by the multiple hyperbola information acquiring means 0961a The other configuration is the same as the previous embodiment.

Here, when acquiring the hyperbola information of the upper layer reinforcing bars, if the depth measurement by electromagnetic wave radiation is performed just above the intersection of the upper layer reinforcing bars and the lower layer reinforcing bars, the reflected waves from the lower layer reinforcing bars interfere with the reflected waves from the upper layer reinforcing bars. Unfortunately, this affects the accuracy of the depth, which is the hyperbolic information of the upper layer reinforcing bars, and makes it impossible to perform accurate depth measurement.
In order to deal with this problem, the structure estimation device 0960 of this embodiment takes the countermeasures described above.
Specifically, as shown in the partial plan view of FIG. 9B, in the mesh reinforcement arrangement of the upper layer reinforcing bars 0901 and the lower layer reinforcing bars 0902 obtained by radar scanning in advance, a plurality of measurement points x1, x2, x3, . . . , y1, y2, y3, .

When performing radar scanning perpendicular to the reinforcement direction of the upper layer reinforcing bar 0901 and the lower layer reinforcing bar 0902, for example, when performing radar scanning perpendicular to the reinforcing bar arrangement direction of the upper layer reinforcing bar 0901, a plurality of measurements on the upper layer reinforcing bar 0901 are performed. The radar scan is performed along the dashed line in the horizontal direction so as to pass through the points x1, x2, x3, . . . Radar scanning is performed along the dashed lines in the vertical direction so as to pass through a plurality of measurement points y1, y2, y3, .

In the structure estimating device 0960 of the present embodiment, Equation 6 shown below is used as a statistical upper layer reinforcing bar diameter acquisition means, and measurement points x1, x2, x3, . . . , y3, . By calculating the difference of , it is possible to average the error such as the inclination of the reinforcing bar.
Δd=|((dx2+dx1)/2)−((dy2+dy1)/2)|Equation 6

At this time, for example, by recalculating each value by changing the combination of the four measurement points above, below, left and right, not only the average of the upper and lower and the left and right, but also the values of the upper layer reinforcing bars can be corrected. In addition, in the calculation result of the reinforcing bar diameter by Equation 6, if a different numerical value is obtained, it is excluded by passing it through a filter.
<Embodiment 3 Structural Estimation Apparatus for Reinforced Concrete Structure Hardware Configuration>

As shown in FIG. 10, a structure estimation apparatus 1060 for a reinforced concrete structure of the present embodiment includes a CPU 1061, a nonvolatile memory 1062 such as an HDD or ROM, a main memory 1063 such as a D-RAM, and an interface. ing. In the nonvolatile memory 1062, as programs, a hyperbola information acquisition program, a multiple hyperbola information acquisition subprogram, an upper layer reinforcing bar diameter acquisition program, a statistical upper layer reinforcing bar diameter acquisition subprogram, a hyperbola curve information acquisition program by relative permittivity, and a specific dielectric constant of mounted concrete A rate acquisition program, a hyperbola curve information acquisition program for estimated diameters of lower layer reinforcing bars, a program for acquiring lower layer reinforcing bar diameters, and a program for acquiring burial depth are stored. The data is current signal and phase angle information, and these programs and data are read into the holding area of the main memory 1063 and executed in the operating area. Further, the interface includes specific low-power radio and the like.
<Embodiment 3 Structural Estimation Apparatus for Reinforced Concrete Structure Process Flow>

In the structure estimation apparatus for a reinforced concrete structure of the present embodiment, as shown in FIG. 11, when the hyperbolic information acquiring step S1101 is executed, a plurality of hyperbolic information acquiring sub-step S1101a is executed to acquire hyperbolic information in a plurality of two orthogonal directions. Then, when executing the upper layer reinforcing bar diameter obtaining step S1102, a statistical upper layer reinforcing bar diameter obtaining sub-step S1102a is executed, and the diameter of the upper layer reinforcing bar is obtained by statistically processing a plurality of pieces of hyperbola information.
<Embodiment 3 Structural Estimation Device Effect of Reinforced Concrete Structure>

In this embodiment, since hyperbola information in a plurality of two orthogonal directions is acquired, it is possible to average errors such as the inclination of reinforcing bars. It has the effect of being

0360 Structural Estimation Apparatus for Reinforced Concrete Structure 0361 Hyperbola Information Acquisition Unit 0362 Upper Layer Rebar Diameter Acquisition Unit 0363 Hyperbola Curve Information Acquisition Unit by Relative Permittivity 0364 Mounted Concrete Relative Permittivity Acquisition Unit 0365 Hyperbola Curve Information Acquisition Unit for Lower Layer Reinforcement Estimated Diameter by Diameter 0366 Lower Layer Reinforcement diameter acquisition part

Claims (9)

The depth of the reflected wave obtained by scanning the surface of the structure with a radar perpendicular to the direction of the reinforcing bars embedded in the reinforced concrete structure, in which at least two layers of reinforcing bars are placed in contact with each other at the orthogonal intersection. A hyperbolic information acquisition unit that acquires hyperbolic information, which is waveform information in the vertical direction, in two orthogonal directions;
an upper-layer reinforcing bar diameter acquisition unit that acquires the diameter of a relatively upper-layer reinforcing bar using the acquired hyperbola information in two orthogonal directions;
a hyperbola curve information by relative permittivity acquiring unit for acquiring hyperbola curve information by relative permittivity, which is information constituting a hyperbola curve when a plurality of relative permittivity of concrete used in a reinforced concrete structure is adopted as a parameter;
Mounted concrete ratio for obtaining the relative permittivity of the concrete used in the reinforced concrete structure based on the obtained multiple hyperbola curve information by relative permittivity and the obtained hyperbola information of the upper layer a dielectric constant acquisition unit;
Estimated diameter-specific hyperbola curve for lower-layer reinforcement estimated using the obtained relative permittivity of the mounted concrete with the diameter of the lower-layer reinforcement as an estimated parameter a curve information acquisition unit;
Acquisition of the diameter of the lower layer reinforcing bars used in the reinforced concrete structure relative to the obtained hyperbola curve information by diameter of the plurality of lower layer reinforcing bars and the hyperbola information of the lower layer of the obtained hyperbola information Department and
A structure estimation device for a reinforced concrete structure. Structural estimation of a reinforced concrete structure according to claim 1, further comprising an embedding depth acquiring unit that acquires the embedding depth of the reinforcing bars embedded in the reinforced concrete structure by using the acquired hyperbola information and the acquired relative permittivity of the mounting concrete. Device. The hyperbolic information acquiring unit has multiple hyperbolic information acquiring means for acquiring hyperbolic information in a plurality of two orthogonal directions,
The upper layer reinforcing bar diameter acquisition unit has a statistical upper layer reinforcing bar diameter acquiring means for acquiring the diameter of the upper layer reinforcing bar by statistically processing the plurality of hyperbola information acquired by the multiple hyperbola information acquiring means. A structure estimation device for a reinforced concrete structure as described. The depth of the reflected wave obtained by scanning the surface of the structure with a radar perpendicular to the direction of the reinforcing bars embedded in the reinforced concrete structure, in which at least two layers of reinforcing bars are placed in contact with each other at the orthogonal intersection. A hyperbola information acquisition step of acquiring hyperbola information, which is waveform information in the vertical direction, in two orthogonal directions;
an upper-layer reinforcing bar diameter obtaining step of obtaining the diameter of a relatively upper-layer reinforcing bar using the obtained hyperbola information in two orthogonal directions;
a hyperbola curve information by relative permittivity acquiring step for acquiring hyperbola curve information by relative permittivity, which is information constituting a hyperbola curve when a plurality of relative permittivity of concrete used in a reinforced concrete structure is adopted as a parameter;
Mounted concrete ratio for obtaining the relative permittivity of the concrete used in the reinforced concrete structure based on the obtained multiple hyperbola curve information by relative permittivity and the obtained hyperbola information of the upper layer a dielectric constant obtaining step;
Estimated diameter-specific hyperbola curve for lower-layer reinforcement estimated using the obtained relative permittivity of the mounted concrete with the diameter of the lower-layer reinforcement as an estimated parameter a curve information acquisition step;
Acquisition of the diameter of the lower layer reinforcing bars used in the reinforced concrete structure relative to the obtained hyperbola curve information by diameter of the plurality of lower layer reinforcing bars and the hyperbola information of the lower layer of the obtained hyperbola information a step;
A method of operating a structure estimation device for a reinforced concrete structure, which is a computer having 5. The reinforced concrete structure as a computer according to claim 4, further comprising an embedding depth acquisition step of acquiring the embedding depth of the reinforcing bars embedded in the reinforced concrete structure using the acquired hyperbola information and the acquired relative permittivity of the mounting concrete. method of operation of the structure estimator of. The hyperbolic information obtaining step has a multiple hyperbolic information obtaining substep of obtaining hyperbolic information in a plurality of two orthogonal directions,
The upper layer reinforcing bar diameter acquiring step has a statistical upper layer reinforcing bar diameter acquiring sub-step of acquiring the diameter of the upper layer reinforcing bar by statistically processing the plurality of hyperbola information acquired by the multiple hyperbola information acquiring sub-step. 6. The operation method of the structure estimation device for a reinforced concrete structure, which is the computer according to 5. The depth of the reflected wave obtained by scanning the surface of the structure with a radar perpendicular to the direction of the reinforcing bars embedded in the reinforced concrete structure, in which at least two layers of reinforcing bars are placed in contact with each other at the orthogonal intersection. A hyperbola information acquisition program for acquiring hyperbola information, which is waveform information in the vertical direction, in two orthogonal directions;
an upper layer reinforcing bar diameter obtaining program for obtaining the diameter of a relatively upper layer reinforcing bar using the obtained hyperbola information in two orthogonal directions;
A hyperbola curve information acquisition program for each relative dielectric constant, which is information constituting a hyperbola curve when a plurality of relative dielectric constants of concrete used in a reinforced concrete structure are adopted as parameters;
Mounted concrete ratio for obtaining the relative permittivity of the concrete used in the reinforced concrete structure based on the obtained multiple hyperbola curve information by relative permittivity and the obtained hyperbola information of the upper layer a dielectric constant acquisition program;
Estimated diameter-specific hyperbola curve for lower-layer reinforcement estimated using the obtained relative permittivity of the mounted concrete with the diameter of the lower-layer reinforcement as an estimated parameter a curve information acquisition program;
Acquisition of the diameter of the lower layer reinforcing bars used in the reinforced concrete structure relative to the obtained hyperbola curve information by diameter of the plurality of lower layer reinforcing bars and the hyperbola information of the lower layer of the obtained hyperbola information program and
A method for estimating the structure of a reinforced concrete structure that can be read by a computer having 8. The computer according to claim 7, further comprising an embedding depth acquisition program for acquiring the embedding depth of the reinforcing bars embedded in the reinforced concrete structure using the acquired hyperbola information and the acquired relative permittivity of the mounting concrete. Structural Estimation Method for Possible Reinforced Concrete Structures. The hyperbolic information acquisition program has a multiple hyperbolic information acquisition subprogram that acquires hyperbolic information in a plurality of two orthogonal directions,
The upper layer reinforcing bar diameter acquisition program has a statistical upper layer reinforcing bar diameter acquisition subprogram that acquires the diameter of the upper layer reinforcing bar by statistically processing a plurality of hyperbola information acquired by the multiple hyperbola information acquisition subprogram. 9. The method for estimating the structure of a reinforced concrete structure that can be read by the computer according to 8.

Images