Concrete filling management system and concrete filling management method

Abstract

To provide a concrete filling management system and a concrete filling management method capable of detecting a defective place of concrete filling in a formwork when filling concrete and being processed properly.SOLUTION: A concrete filling management system comprises: a formwork assembled so as to form a concrete filling space at one face side; a plurality of sensors attached to the other face side of the formwork and monitoring a state of the concrete in the formwork; and a management device detecting a state of the concrete in the filling space based on detection results of the plurality of sensors when filling the concrete into the filling space.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a concrete filling management system and a concrete filling management method for managing the filling state of concrete into a formwork.

Background Art

[0002] Concrete structures are constructed by assembling formworks and filling the formworks with concrete. For example, Patent Document 1 describes a technique for measuring the filling state of concrete. According to the technique described in Patent Document 1, after arranging a plurality of sensors for detecting pressure and temperature in the formwork, the formwork is filled with concrete, and the filling state of the concrete is monitored based on the detection values of the sensors.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Since there is a formwork during the filling of concrete, it is difficult to visually confirm the internal state. Therefore, during the filling of concrete, in order to confirm the filling state inside the formwork, workers have confirmed the quality of filling based on the knocking sound of the formwork. When confirming the filling state of concrete based on the knocking sound of the formwork, since it depends on the sense of the worker, there is a possibility that unfilled portions of concrete may occur inside the formwork. According to the technique described in Patent Document 1, it did not identify the defective filling portions of concrete inside the formwork.

[0005] An object of the present invention is to provide a concrete filling management system and a concrete filling management method that can detect defective filling portions of concrete inside a formwork during the filling of concrete and can be appropriately treated.

Means for Solving the Problem

[0006] One aspect of the present invention is characterized by comprising: a formwork combined to form a concrete filling space on one side; a plurality of sensors attached to the other side of the formwork for detecting the pressure of the formwork; and a management device that monitors the state of the concrete in the formwork based on the detection results of the plurality of sensors when filling the concrete into the filling space and determines the state of the concrete in the filling space.

[0007] According to the present invention, during concrete filling, the deformation of the formwork can be detected in real time by sensors, and it is possible to determine whether there is insufficient filling of concrete in the formwork based on the detection results.

[0008] Further, the management device of the present invention may specify the position of the formwork in which the filling of the concrete in the filling space is insufficient based on the detection results of the plurality of sensors.

[0009] According to the present invention, by associating the detection results of the sensors indicating insufficient filling with the positions of the sensors, it is possible to specify the position where insufficient filling has occurred in a formwork whose interior cannot be visually inspected.

[0010] Further, the management device of the present invention may specify a predetermined range in which a vibrator is to be constructed in the filling space corresponding to the position.

[0011] According to the present invention, even if the inside of the formwork cannot be visually inspected, by specifying the position where insufficient filling has occurred in the formwork, it is possible to specify the range in which the vibrator is to be constructed.

[0012] Further, the management device of the present invention may determine the filling state of the concrete after the construction of the vibrator based on the detection results of the sensors provided at the positions corresponding to the predetermined range.

[0013] According to the present invention, since the sensor constantly detects the filling state of the concrete, even after the vibrator is constructed, the filling state of the concrete can be monitored.

[0014] Further, the management device of the present invention may determine the curing state of the concrete after the filling of the concrete is completed, and based on the determination result, determine whether the formwork can be removed.

[0015] According to the present invention, the curing state of the concrete after filling can be monitored, and the time when the formwork can be removed can be determined.

[0016] Further, when the construction target is prestressed concrete, the management device of the present invention may, after removing the formwork, based on the detection value of the sensor, determine whether it is the degree of curing of the concrete in which the PC steel material can be tensioned.

[0017] According to the present invention, when the construction target is prestressed concrete, the time when the PC steel material can be tensioned can be determined by monitoring the curing state of the concrete.

[0018] One aspect of the present invention is a concrete filling management method including a step of combining formworks so as to form a concrete filling space on one surface side, a step of attaching a plurality of sensors to the other surface side of the formwork, a step of filling the concrete into the filling space of the formwork, and a step of monitoring the state of the concrete in the formwork based on the detection results of the plurality of sensors and determining the state of the concrete in the filling space.

[0019] According to the present invention, a sensor can be attached to the formwork, and the deformation of the formwork can be detected in real time by the sensor during concrete filling. According to the present invention, it is possible to determine whether there is insufficient filling of the concrete in the formwork based on the detection result of the sensor.

[0020] Further, the present invention may also include a step of identifying the position of the formwork where the filling of the concrete in the filling space is insufficient based on the detection results of the plurality of sensors.

[0021] According to the present invention, by associating the detection results of the sensors indicating insufficient filling with the positions of the sensors, it is possible to identify the positions where insufficient filling has occurred in the formwork that cannot be visually inspected inside.

[0022] Further, the present invention may also include a step of constructing a vibrator in a predetermined range of the filling space corresponding to the position.

[0023] According to the present invention, even if the inside of the formwork cannot be visually inspected, by identifying the position where insufficient filling has occurred in the formwork, it is possible to identify the range where the vibrator is to be constructed.

[0024] Further, the present invention may also include a step of determining the hardened state of the concrete after the filling of the concrete is completed, and based on the determination result, determining whether the formwork can be removed.

[0025] According to the present invention, it is possible to monitor the hardened state of the concrete after the filling of the concrete, and to determine the timing when the formwork can be removed.

[0026] Further, when the construction target is prestressed concrete, the present invention may also include a step of determining whether it is the degree of hardening of the concrete in which the PC steel material can be tensioned based on the detected value of the sensor.

[0027] According to the present invention, when the construction target is prestressed concrete, by monitoring the hardened state of the concrete, it is possible to determine the timing when the PC steel material can be tensioned.

Advantages of the Invention

[0028] According to the present invention, it is possible to detect a defective filling portion of concrete in a formwork during concrete filling and to appropriately take measures.

Brief Description of the Drawings

[0029]

Figure 1

Figure 2

Figure 3

Embodiments for Carrying Out the Invention

[0030] Hereinafter, embodiments of a concrete filling management system and a concrete filling management method according to the present invention will be described with reference to the drawings.

[0031] As shown in FIG. 1, the concrete filling management system includes a formwork C installed on-site, a plurality of sensors S provided on the formwork C, a communication device 20 that transmits the detection values of the sensors S, a management device 10 that manages the filling state of concrete based on the detection values of the sensors S, and a mobile terminal 30 for confirming the filling state of concrete on-site. The formwork C is installed at the construction site of the structure. T and a mobile terminal 30 for confirming the filling state of concrete on-site. The formwork C is installed at the construction site of the structure.

[0032] The formwork C is combined so as to form a concrete filling space U on one side C1 to form the shape of the structure. On the other side C2 of the formwork C, for example, a plurality of sensors S for detecting the state on the one side C1 of the formwork C are attached. The sensor S is formed by, for example, a piezoelectric element that detects the state of the concrete at the position of the formwork C. The sensor S converts the change in pressure when the formwork C is filled with concrete into voltage and outputs it. Based on the detection value of the sensor S, it is possible to monitor the presence or absence of fresh concrete filling and the curing state (strength estimation) of the concrete at the position of the formwork C. The plurality of sensors S are arranged at predetermined intervals along the vertical and horizontal directions on the other side C2 of the formwork C, for example. The arrangement relationship of the sensors S and the shape of the sensors S may be appropriately changed based on conditions such as the shape of the formwork C and the shape of the filling space U.

[0033] A communication device 20 is connected to the plurality of sensors S. The communication device 20 is composed of, for example, a terminal device having a communication function such as a personal computer, a smartphone, or a tablet terminal. Other devices may be used as long as they are communicable devices. The communication device 20 transmits the data of the detection value of the sensor S to the management device 10 via the network W. The network W is an in-house wireless LAN (Local Area Network) or a public wireless line.

[0034] The management device 10 acquires data regarding the detection value of the sensor S via the network W. The management device 10 is, for example, a server device connected to the network W. The management device 10 is composed of, for example, a personal computer. The management device 10 acquires data via, for example, the communication unit 11. The communication unit 11 is composed of a communication device connectable to the network W. The communication unit 11 is controlled by, for example, the arithmetic unit 12.

[0035] Based on the data including the detection results of a plurality of sensors acquired by the communication unit 11, when filling the concrete K into the filling space U, the calculation unit 12 monitors the state of the concrete in the formwork C and determines the state of the concrete in the filling space within the formwork C. For example, based on the determination result determined based on the detection results of the plurality of sensors, the calculation unit 12 estimates the two-dimensional or higher-dimensional position of the formwork where the filling of the concrete K in the filling space is insufficient. For example, the calculation unit 12 calculates the filling speed of the concrete K and the first pressure in the normal state at the position of the sensor S based on detection values such as the detection start time of the sensor S (the first sensor), the detection start time of the sensor S (the second sensor) adjacent above the sensor S, the cross-sectional area of the filling space U at the attachment position of the sensor S, the distance between the first sensor and the second sensor, the density of the concrete K, and set conditions.

[0036] The relationship between the detection value of the sensor S and the pressure of the concrete K is stored in advance in the storage unit 14 as, for example, map data. The calculation unit 12 refers to the map data and calculates the second pressure of the concrete with respect to the detection value of the sensor S. The calculation unit 12 compares the first pressure and the second pressure, and if the difference is less than a preset threshold value, it determines that the filling state of the concrete at the position of the formwork C is sufficient and the filling of the concrete K is normal. The calculation unit 12 compares the first pressure and the second pressure, and if the difference is greater than or equal to the preset threshold value, it determines that the filling of the concrete at the position of the formwork C is insufficient and the filling of the concrete K is insufficient.

[0037] When the calculation unit 12 determines that the filling of the concrete K is insufficient, it identifies the position of the first sensor. Based on the identified position of the first sensor, the calculation unit 12 estimates a predetermined range where a vibrator is to be constructed in the filling space corresponding to the calculated position. The calculation unit 12 generates a management image M for displaying the estimated predetermined range and causes it to be displayed on the display unit 13. Also, the calculation unit 12 transmits, via the communication unit 11 and via the network W, a notification including the data of the management image M and a message indicating that insufficient filling of the concrete K has occurred to the mobile terminal 30.

[0038] The mobile terminal 30 receives notifications from the management device 10 via the network W. At the site, the operator checks the position of the sensor S where insufficient filling of the concrete K has occurred based on the notifications and the management image M displayed on the mobile terminal 30.

[0039] As shown in FIG. 2, the management image M displays a message indicating insufficient filling, an ID number for individually recognizing the formwork C, the shape of the formwork C, the position of the sensor where insufficient filling has occurred, a vibrator construction area, etc. in a schematic illustration.

[0040] The operator temporarily stops the filling of the concrete K, identifies the position of the sensor S based on the management image M, and constructs a vibrator in a predetermined range in the filling space U corresponding to the position. The operator performs an input operation on the mobile terminal 30 indicating that the construction of the vibrator has been completed. The mobile terminal 30 transmits an end notification indicating that the construction of the vibrator has been completed to the management device 10 via the network W based on the input operation.

[0041] After receiving the end notification, the arithmetic unit 12 determines again the filling state of the concrete K after the construction of the vibrator based on the detection result of the sensor S provided at the position corresponding to the predetermined range. Based on the above determination method, when the filling defect is eliminated, the arithmetic unit 12 transmits a resolution notification indicating that fact. When the filling defect is not eliminated, the arithmetic unit 12 transmits again to the mobile terminal 30 a notification including the data of the management image M and a message indicating that insufficient filling of the concrete K has occurred via the network W. The arithmetic unit 12 repeats the above process until the filling defect is eliminated. At the site, when the operator receives a message with a resolution notification displayed on the mobile terminal 30, the operator resumes the filling of the concrete K.

[0042] After the concrete filling is completed, the calculation unit 12 determines the hardening state of the concrete based on the detection result of the sensor S. Further, when the construction target is prestressed concrete, the calculation unit 12 may determine that the PC steel material can be tensioned when the detected value of the sensor S falls within the range of a threshold value preset according to the degree of hardening of the concrete in which the PC steel material can be tensioned. The calculation unit 12 determines that the formwork C can be removed when the detected value of the sensor S falls within the range of a threshold value preset according to the degree of hardening of the concrete.

[0043] Next, a concrete filling management method managed by the concrete filling management system 1 will be described.

[0044] FIG. 3 shows the flow of processing of each step of the concrete filling management method. Each step may be appropriately rearranged in order. The operator combines the formwork C so as to form a concrete filling space U on one surface C1 side of the formwork C (step S100). The operator attaches the sensor S to the other surface C2 side of the formwork C (step S102). The operator fills the filling space U of the formwork C with the concrete K (step S104). The management device 10 monitors the filling state of the concrete K in the filling space U based on the detection results of the plurality of sensors S (step S106). The management device 10 determines whether or not there is a shortage of concrete filling in the filling space based on the monitoring result (step S108).

[0045] When the management device 10 determines that there is insufficient filling, it identifies the position in the formwork C where the filling of the concrete K in the filling space U is insufficient (step S110). When the filling of the concrete is sufficient, the process proceeds to step S114 to continue the filling of the concrete. Based on the notification displayed on the mobile terminal 30, the operator constructs a vibrator for a predetermined range of the filling space U corresponding to the position in the formwork C where insufficient filling has occurred (step S112). The management device 10 determines whether or not the insufficient filling of the concrete has been eliminated based on the detection value of the sensor S (step S114). When the insufficient filling of the concrete has been eliminated, the operator continues the filling of the concrete based on the notification displayed on the mobile terminal 30.

[0046] The management device 10 determines whether or not the filling of the concrete has been completed (step S116). When continuing the filling of the concrete (step S116: No), the management device 10 returns the process to step S104 to continue the filling of the concrete. When finishing the filling of the concrete (step S116: Yes), the management device 10 determines the degree of hardening of the concrete (step S118).

[0047] When the construction target is prestressed concrete, the management device 10 determines whether or not the degree of hardening of the concrete allows the PC steel material to be tensioned (step S120). When the degree of hardening of the concrete reaches a predetermined standard (step S120: Yes), the management device 10 determines that the degree of hardening of the concrete allows the PC steel material to be tensioned, and the operator tensions the PC steel material provided in the concrete (step S122). The operator removes the formwork C (step S124). Each step may be appropriately interchanged.

[0048] As described above, according to the concrete filling management system 1, the filling state of the concrete K in the formwork C can be monitored in real time. According to the concrete filling management system 1, the two-dimensional or higher-dimensional position where the underfilling of the concrete generated in the formwork C occurs can be specified in real time, and the construction of the vibrator can be prompted in real time. According to the concrete filling management system 1, it is possible to determine again whether the construction of the vibrator is sufficient, and it is possible to reliably prevent construction defects. According to the concrete filling management system 1, the sensor S can be reused after construction, and the construction cost can be reduced.

[0049] The above-described arithmetic unit 12 is realized by a processor such as a CPU (Central Processing Unit) or a GPU (Graphics Processing Unit) executing a program (software). Some or all of these functional units may be realized by hardware such as an LSI (Large Scale Integration), an ASIC (Application Specific Integrated Circuit), or an FPGA (Field-Programmable Gate Array), or may be realized by the cooperation of software and hardware. The program may be stored in a storage device such as an HDD (Hard Disk Drive) or a flash memory included in the storage unit 14, or may be stored in a removable storage medium such as a DVD or a CD-ROM, and may be installed in the storage device by mounting the storage medium on a drive device.

[0050] Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment and can be appropriately modified without departing from the spirit thereof. For example, in the concrete filling management system, the sensor S has been exemplified in the case of using a piezoelectric element, but it is not limited thereto, and other sensors such as a laser sensor and an ultrasonic sensor may be used as long as the state of the filling space U such as the pressure of the formwork C and the pressure of the filling space U can be detected. Further, the method for determining insufficient concrete filling in the management device 10 is an example, and the determination may be made based on other calculation methods and other detection methods.

Explanation of Signs

[0051] 10 Management device C Formwork C1 One side C2 The other side K Concrete S Sensor U Filling space

Claims

1. A formwork combined to form a concrete filling space on one side, a plurality of sensors attached to the other side of the formwork to detect the pressure of the formwork, a management device that monitors the state of the concrete in the formwork based on the detection results of the plurality of sensors when filling the concrete into the filling space, and determines the state of the concrete in the filling space, comprising: the sensor is formed of a piezoelectric element, converts a change in pressure when the formwork is filled with concrete into a voltage and outputs it, and is configured to be able to monitor the curing state of the concrete, the plurality of sensors are arranged at predetermined intervals along the vertical and horizontal directions on the other side of the formwork, the management device determines the curing state of the concrete after completion of filling the concrete, and determines whether the formwork can be removed based on the determination result, characterized in that: A concrete filling management system.

2. the management device identifies the position of the formwork in which the filling of the concrete in the filling space is insufficient based on the detection results of the plurality of sensors, The concrete filling management system according to claim 1.

3. the management device identifies a predetermined range for constructing a vibrator in the filling space corresponding to the position, The concrete filling management system according to claim 2.

4. the management device determines the filling state of the concrete after construction of the vibrator based on the detection results of the sensors provided at the position corresponding to the predetermined range, The concrete filling management system according to claim 3.

5. when the construction target is prestressed concrete, the management device determines whether it is the degree of curing of the concrete in which the PC steel material can be tensioned based on the detected value of the sensor, The concrete filling management system according to claim 4.

6. a step of combining a formwork to form a concrete filling space on one side, a step of attaching a plurality of sensors to the other side of the formwork, a step of filling the concrete into the filling space of the formwork, a step of monitoring the state of the concrete in the formwork based on the detection results of the plurality of sensors and determining the state of the concrete in the filling space, comprising: The sensor is formed of a piezoelectric element, converts a change in pressure when the concrete is filled in the formwork into voltage and outputs it, and is configured to be able to monitor the curing state of the concrete. The plurality of sensors are arranged at predetermined intervals along the vertical and horizontal directions on the other surface side of the formwork. After the filling of the concrete is completed, it includes a step of determining the curing state of the concrete and determining whether the formwork can be removed based on the determination result. Concrete filling management method.

7. It includes a step of specifying the position of the formwork where the filling of the concrete in the filling space is insufficient based on the detection results of the plurality of sensors. The concrete filling management method according to Claim 6.

8. It includes a step of constructing a vibrator for a predetermined range of the filling space corresponding to the position. The concrete filling management method according to Claim 7.

9. When the construction target is prestressed concrete, after the formwork is removed, it includes a step of determining whether it is the degree of curing of the concrete in which the PC steel material can be tensioned based on the detected value of the sensor. The concrete filling management method according to Claim 8.

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