KR100292239B1 - Automatic measuring system for construction of bridge pier and high structure - Google Patents

Abstract

PURPOSE: An automatic measuring system for construction of bridge and high structure is provided to construct precise concrete structure by regularly inspect constructing state of the concrete structure constructed by slip-form method. CONSTITUTION: A measuring system comprises a horizontality measuring device(10); a working height measuring device(20); a grade measuring device(30); a heat of hydration measuring device(50); an atmospheric state measuring device(60); a program logic controller(70); and a personal computer(80). The horizontality measuring device measures horizontality of slip-form equipment forming a concrete structure. The working height measuring device measures height daily constructed. The grade measuring device measures gradient of a concrete structure constructed with certain inclination. The heat of hydration measuring device measures slip-up time, hardening depth and heat of hydration of applied concrete. The atmospheric state measuring device analyzes correlation between hardening speed of concrete and atmospheric state to use for construction. The program logic controller collects information measured by the measuring devices. The personal computer analyzes data and outputs to a monitor or a printer.

Description

Automatic Measurement System for Bridge and Aerial Structure Construction

The present invention is to measure whether the construction height according to the design by measuring the working height of the construction, the horizontality of the work surface, the curing speed, the ambient atmosphere, the slope, etc. in the construction process of the construction of concrete structures, such as bridge piers and high-rise structures, errors The present invention relates to a measurement system for the construction process of concrete structures to correct them during diagnosis. In particular, the work height, horizontality, inclination, curing speed, and atmospheric environment of the construction are measured by installing individual devices on slip-forms. The present invention relates to an automatic measurement system according to the construction of bridges and high-rise structures, which enables precise construction by judging the work situation by displaying the measured data integratedly.

In general, a slip-form method is used as a method used for constructing a pier and an aerial structure. The slip-form method is a method using a property that the concrete is easily cured, install a foam of a constant height having the same area as the cross-sectional area of the concrete structure to be poured, and curing the concrete by filling the inside of the foam to a certain strength After hardening, the method is to construct concrete structures such as bridge piers and high-rise structures by continuously pouring concrete by raising the foam and filling concrete in the raised foam again.

In the case of the construction of the pier and the high-altitude structure by the slip-form method described above, the work amount of the slip-form is limited once, and the first slip-form is installed and poured, and when the concrete is hardened, the slip-form is raised again. The concrete is then cast inside the slip-form. At this time, in order to know how much of the concrete structure to be poured, the height of the concrete construction was measured using a laser or a steel scale, and the level of the pour surface was measured using a water leveler.

In addition, the degree of cure of the poured concrete, which determines the timing of the rise of the slip-form, measured the degree of cure depending on the operator's sense, and determined the timing of the rise of the slip-form.

However, the conventional slip-form method described above has a problem that it is difficult to precise construction by performing a work depending on the manual or the operator's senses, and difficult to manage high quality because there is no systematic data. In addition, measuring the vertical degree using a laser has a problem that the initial setting and maintenance of the laser is difficult and the laser equipment is expensive.

In addition, since the judgment of determining the rise time of the slip-form by measuring the degree of hardening of the poured concrete is determined depending on the experience of the operator, the poured concrete may be damaged by raising the slip-form before the poured concrete is hardened. In addition, if it is raised after hardening above the proper level, fatal defects such as horizontal cracks and vertical cracks may occur, which may cause problems in the surface roughness of the structure.

The present invention is to measure the horizontality of the concrete surface to be poured by the slip-form in order to solve the above problems, the horizontality measuring device installed on one side of the slip-form, and the height of the concrete pouring surface to be constructed Slip-forms used in the slip-foam method, which are used to measure the altitude of the concrete, the inclination measuring device to measure the inclination of the concrete, and the hydration heat measuring device to measure the heat recovery of the poured concrete. Installed in the machine, installs the air environment measuring device for measuring the air environment around the workplace, and transfers it to the computer by the program logic controller that collects measurement data from the installed measuring devices to analyze and display various data And precisely and precisely as designed by the operator It aims to collect data that can be used in future work by making it possible to manage various measurement data together.

In order to achieve the above object, the present invention is installed on the side of the slip-form and a horizontal level measuring device for measuring the horizontality of the concrete surface poured by using a weight balance weight (Weight Balance), and exposed to the top of the slip-form Work height measuring device that accumulates and measures the height of concrete surface installed and placed on the jack rod every time the slip-form rises, and the slip-form lower part to be in close contact with the hardened concrete under the slip-form An inclination measuring device for measuring the inclination of the side of the concrete installed by using a precision tachometer, and measuring the hardening depth of the concrete to be hardened and installed between the sides of the slip-form to determine the timing of the rise of the slip-form Hardening depth measuring device for measuring and curing heat measuring device for measuring the heat of hydration of concrete to be hardened Atmospheric environment measuring device for measuring the environmental change of the atmosphere, a program logic controller that receives the various data measured by the measuring devices and transmits to the computer, and analyzes the data input from the program logic controller and output means Automatic measurement system according to the construction of piers and high-rise structures, including a computer with a built-in program for output by the operator to check.

1 is a block diagram illustrating a measurement system according to the present invention.

Fig. 2A is a front view showing a horizontal level measuring device used in the measuring system of the present invention.

Figure 2B is a side view of Figure 2A.

Figure 3a is a side view showing a working altitude measuring device used in the measuring system of the present invention.

3B is a plan view cut along the line A-A in FIG. 3A.

Fig. 4 is a side view showing the inclination measuring device used in the measuring system of the present invention.

Fig. 5A is a side view showing the curing depth measuring device used in the measuring system of the present invention.

Figure 5b is a side view showing an embodiment of measuring the curing depth of the concrete pouring layer using the curing depth measurement device of Figure 5a.

Fig. 6 is a side view showing the hydration heat measuring apparatus used in the measuring apparatus of the present invention.

<Brief description of the main parts of the drawing>

10: horizontal measuring device 11: weight balance weight

12: precision rotary encoder unit 13: angle guide plate

14 shaft 15 setting bracket

16: fixed plate 20: working altitude measuring device

21: moving plate 22: base setting plate

23: magnetic scale 24: restoring spring

25: guide shaft 26: air cylinder

27: jack-rod chucking clamp 28: jack-rod

29 cover 30 tilt measuring device

31: main bracket frame 32: sensor mounting plate

33: bearing 34: bearing case

35 sensor 36 measuring angle maintaining device

37 cover 40 curing depth measuring device

41: probe 42: air cylinder

43: case 44: concrete pouring layer

50: hydration heat measuring device 51: temperature sensor

52: wire 53: protective cover

60: atmospheric environment measuring device 70: program logic controller

80: computer

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a block diagram showing the data flow of the measurement system according to the present invention, a horizontal level measuring device 10, work altitude measuring device 20, gradient measuring device 30, curing depth measuring device 40, hydration heat The measuring device 50 and the atmospheric environment measuring device 60 measure the desired data according to the function of each measuring device, and transmit the measured data to the program logic controller 70. At this time, the configuration and data measurement method of each measurement device will be described later with reference to the accompanying FIGS. As a communication method for transmitting data from the measuring devices to the program logic controller 70, various methods may be used, but the sign language heat measuring device 50, the gradient measuring device 30, and the horizontal measuring device according to the characteristics of each measuring device. 10 transmits the data by the communication method by the A / D conversion, the working altitude measuring device 20 transmits the data by the serial transmission BCD communication method, and the depth of hardening measurement device 40 The I / O transmission method and the atmospheric environment measuring device 60 transmit each data through the serial transmission RS-232 communication method. As described above, the data transmitted from each measuring device to the program logic controller 70 is transmitted to the computer 80. Next, the computer 80 analyzes the data collected and transmitted from the program logic controller 70 and outputs the analyzed data through an output means such as a monitor or a printer, and by serial transmission RS-232 communication method. It is configured to be fed back to the program logic controller 70 to be compared with data input later.

Next, FIGS. 2A and 2B relate to a horizontal level measuring device 10 for measuring a horizontal level of a slip-form used in the measuring system of the present invention and constructing a horizontal concrete pouring surface. Weight balance screw (11) to maintain balance, a precision rotary encoder unit (12, rotary encode unit) that measures the angle of movement according to the movement of the weight balance weight (11) and the degree of inclination with the naked eye Angle guide plate 13 to be identified, and the weight balance weight (11) is installed and the bearings are installed at both ends of the shaft 14 that rotates easily, the setting is installed to install the shaft 14 It consists of a bracket (setting bracket, 15), and a base plate (16) attached to the side of the slip-form by supporting the bracket (15). When the level measurement device 10 configured as described above is inclined while the slip-form is not maintained horizontally, the weight balance weight 11 is inclined with respect to the direction of gravity according to the degree of inclination, and the balance weight 11 The precision rotation encoder unit 12 rotates the degree of inclination of the motion, and the horizontal motion is measured by measuring the resolution by integration and calculation methods. In addition, since the angle guide plate 13 indicates the inclination angle according to the degree of inclination of the counterweight 11, the naked eye can be identified. The horizontal measurement data measured as described above is transmitted to the program logic controller by the communication method described above.

3A and 3B show a working altitude measuring device 20 for measuring the working height of the concrete to be poured, the moving plate 21 moving by the raised height of the slip-form, and the moving plate 21. Restoration spring 24 is installed at the four corners of the lower portion to restore the position of the moving plate 21, and the guide shaft 25 for guiding the restoring spring 24 and the moving plate 21 to move constantly ), A base setting plate 22 for fixing the lower part of the guide shaft 25, and a magnetic scale formed at one side of the moving plate 21 to measure the distance amount due to the movement of the moving plate 21. 23, a jack-rod chucking clamp 27 for clamping the base setting plate 22 and the movable plate 21 to a jack-rod 29 of a slip-form, and the jack-rod chucking clamp ( An air cylinder 26 which adjusts the clamp 27 such that 27 bites or releases the jack-rod 29, It consists of a cover 29 to protect the device group. The working altitude measuring device 20 configured as described above has the jig of the jack-rod chucking clamp 27 installed on the upper surface of the moving plate 21 when the base setting plate 22 is moved. The jack-rod 28 is clamped by the reference numeral), and when the base setting plate 22 moves by the rising height of the slip-form, the movement interval thereof is measured by the magnetic scale 23. Next, when the distance measurement is finished, the air cylinder is operated to release the clamp jig chucking the jack-rod so that the moving plate 21 is lifted by the restoring spring 24 by the moving distance of the base setting plate 22. Restore it to its original state. Since the measured movement distance is the distance that the slip-form has been moved once, the measured data is transmitted to the computer through the program logic controller, and the transmitted data is accumulated on the previously measured movement distance, and thus the entire measurement until the measurement is performed. The movement distance, that is, the working altitude, is measured.

4 shows an inclination measuring device 30 used in the measuring system of the present invention, in which a main bracket frame 31 for fixing to a slip-form and a rotating bearing 33 in contact with the side of the cast concrete ) Is built in the bearing case 34 is maintained at both ends of the sensor mounting plate 36 installed on both ends, and the angler mounting plate 26 inclined by both bearings 33 in contact with the concrete surface One end is attached to the main frame 31 and the other end is fixed to the sensor mounting plate 26 so that the measuring angle holding device 36, the sensor mounting plate 33 and the main bracket frame Located between the 31, and fixed to the sensor mounting plate 33 is composed of a sensor 35 for measuring the inclination, the measurement sensor 35 is a horizontal measuring device described in Figures 2a and 2b ( It is configured almost identically with 10) so no more Names will be omitted. In the above-described inclination measuring device 30, the bearing 33 contacts the concrete placing surface at both ends of the fixing plate 32 for sensor mounting, and measures the inclination angle of the position to be measured according to the inclination degree of the contacted surface. When kept constant by the holding device 36, the sensor 35 measures the degree of inclination by the counterweight and the precision rotary encoder unit. By comparing the measured data as described above with the design data it is possible to determine whether the construction proceeds correctly and can be immediately restored in the event of an error.

Next, FIGS. 5A and 5B relate to a curing depth measuring apparatus 40 used in the measuring system of the present invention, wherein a case 43 which can be fixed to a slip foam and a concrete installed inside the case 43 are shown. It consists of a probe 41 and an air cylinder 42 for charging the probe 41 into the installed concrete. 20 to 30 minutes after the concrete is poured, the concrete reaches the strength that can be formed as an initial structure, and afterwards, the concrete is poured again by improving the slip-form. After a certain period of time deviating from the determination of the timing, the degree of hardening is measured by charging the probe of the above-described hardening depth measuring device 40 into the concrete poured using the air cylinder 42. At this time, the air cylinder 42 is used to maintain a constant long field input.

Next, Fig. 6 relates to a hydration heat measuring apparatus 50 used in the measuring system of the present invention, and transmits a temperature measuring sensor 51 for measuring the temperature of the poured concrete and a value measured by the sensor 51. And a sensor protective cover 53 for protecting a connection portion between the sensor 51 and the wire 52. The above-mentioned hydration heat measurement apparatus 50 takes about 20 to 30 minutes after the concrete is poured, and when the concrete reaches the strength that can be formed as an initial structure, the hydration heat measuring device 50 moves up the slip-form to place the concrete, but the concrete is The temperature at the time of reaching the strength that can be formed as an initial structure, that is, the heat of hydration, is measured by loading the temperature sensor 52 into the concrete surface and recording and maintaining the data to compare and analyze the strength expression time of the concrete with respect to the change in ambient temperature Can be.

Next, although not shown, the atmospheric environment measuring device 70 used in the measurement system of the present invention measures a temperature at a position where the atmospheric environment is easy to measure in a work place, and a thermometer and humidity for transmitting the measured value. A hygrometer for measuring, a wind vane for measuring wind direction, and an anemometer for measuring wind speed are installed, and means for collecting and transmitting the measured data from the devices. The above-described atmospheric environment measuring device can be utilized during construction by analyzing the curing rate of concrete by measuring the air temperature, humidity, and wind speed and providing it as data.

The data measured by the respective measuring devices as described above is data by the communication method between the measuring instruments 10, 20, 30, 40, 50, 60, 70 and the program logic controller 70 as described in FIG. The program logic controller 70 transmits the collected data to the program logic controller 70, and the collected program logic controller 70 transmits the collected data to the computer 80. The computer receiving the data is analyzed by analyzing the respective data, work altitude, horizontality, inclination, depth of cure, heat of hydration, etc. according to the measured data, and display on the monitor or output to the printer including the atmospheric environment data The contractor can grasp the working situation at a glance, enable precise construction, and maintain the data for later processing.

As described above, the automatic measurement system according to the construction of the pier and the high-rise structure according to the present invention, first, by using the level measuring device installed in the slip-form machinery, the horizontal degree of the slip-form whenever the slip-form is raised By installing the slip foam so that the operator can check the measurement result through a monitor or printer, and install the slip foam to maintain the horizontal level accurately, the concrete pour surface can be constructed horizontally. On the other hand, the work height measuring instrument installed on the slip-form jack-rod measures the height of each rise of the slip-form and transmits it to the computer, and then measures the height by adding up the data accumulated in the computer. Can be measured, easy to operate, and is not affected by working height.

In addition, the inclination measuring device for measuring the inclination of the concrete surface to be poured can measure the inclination quickly and accurately without being influenced by the surrounding environment, and the hardening depth measuring device for measuring the hardening depth of the placed concrete The measurement time can be measured in real time without any extra time, and precise construction can be performed by measuring the determination of the slip-form rise time, which was dependent on the operator's sense, by using a mechanical device. In addition, the hydration heat measurement device and the atmospheric environment measurement device can be utilized for technical construction by systematically measuring and managing various data of the factory and the construction date.

In parallel with the effects of each measuring instrument as described above, the measuring system of the present invention analyzes data measured by the measuring instruments by a computer and displays or outputs them to a printer so that they can be viewed at a time. The construction of the water can be grasped and corrected in the event of an error so that precise construction is possible.

Claims (1)

The automatic measuring system of the slip-form method for constructing bridges and high-rise structures using concrete, which is installed on the side of the slip-form, the weight balance weight to maintain a balance in the direction perpendicular to the ground, the weight balance weight Precision rotary encoder unit that measures the angle of movement according to the movement, Angle guide plate for identifying the degree of inclination with the naked eye, Rotary shaft with the weight balance added and bearings at both ends, for installing the shaft A level measuring device for measuring the level of the concrete placing surface of the slip-form consisting of a fixing plate on the side of the slip-form by supporting the bracket and the slip-form, and a slip-form for measuring the rising height of the slip-form. It is installed on the upper side, the movable plate moving by the raised height of the slip-form, four of the lower plate Restoration spring installed in the frost to restore the position of the moving plate, a guide shaft for guiding the restoring spring and the moving plate to move constantly, a base setting plate for fixing the lower guide shaft, formed on one side of the moving plate A magnetic scale for measuring the distance by the movement of the moving plate, a jack-rod chucking clamp for snapping the base setting plate and the moving plate to a jack-rod of a slip-form, and the jack-rod chucking clamp is a jack- Work altitude measuring device composed of an air cylinder adjusting the clamp to bite or loosen a rod and a cover for protecting the devices, and measuring the inclination of the side of the concrete installed under the slip-form. Main bracket frame for fixed installation in One end is attached to the main frame and the other end is fixed to the sensor mounting plate to maintain the inclination of the sensor mounting plate provided at both ends and the sensor mounting plate contacting the concrete surface. Inclination measuring device consisting of a sensor for measuring the inclination is fixed to the sensor mounting plate between the sensor holding plate, the sensor mounting plate and the main bracket frame, and the depth of hardening of the concrete placed inside the slip-form In order to measure the pressure, the hardening depth measuring device consisting of a case that can be fixed to the slip-form, the installed concrete probe inside the case and an air cylinder for charging the probe into the cast concrete, and the slip-form It is used to measure the heat of hydration of concrete that is hardened inside. Hydration heat measuring device composed of a temperature measuring sensor for measuring a temperature, a wire for transmitting a value measured by the sensor, and a sensor protective cover for protecting a connection portion between the sensor and the wire, and concrete with the slip-form method. Installed in the workplace to measure the atmospheric environment, the thermometer to measure the ambient temperature, the hygrometer to measure the humidity, the wind vane to measure the wind direction, the anemometer to measure the wind speed and measured from the instruments An atmospheric environment measuring device including means for collecting and transmitting data, a program logic controller for collecting measured data from the respective measuring devices, and receiving and analyzing the information collected by the program logic controller; Teaching comprising a computer displaying by output means And a data acquisition system of complaints structures construction.