A monitoring system for high formwork

Abstract

This invention provides a high-formwork monitoring system, comprising a high-formwork frame for erecting a cap beam, formed by uprights and crossbars. A template is installed on top of the high-formwork frame. Wireless load cells, wireless inclinometers, and wireless displacement meters are installed in the safety monitoring area of ​​the high-formwork frame. Two wireless displacement meters are installed on the same upright at a 90° angle, corresponding to the longitudinal and transverse directions of the cap beam. Each wireless displacement meter has a measuring point on the high-formwork frame corresponding to one measuring point to monitor the relative displacement between the upright and the measuring point. In this invention, two wireless displacement meters are installed at a 90° angle on the same upright to monitor template settlement and the relative displacement of the upright in both the longitudinal and transverse directions of the cap beam, improving the accuracy of safety monitoring of the high-formwork frame.

Description

Technical Field

[0001] This invention belongs to the field of building construction, and in particular relates to a high formwork monitoring system. Background Technology

[0002] During the erection of the support frame for the cap beam construction, it is necessary to conduct safety monitoring of the high formwork frame. This monitoring includes changes in parameters such as support axial force, formwork settlement, relative displacement, and support system tilt caused by factors such as instability of the uprights, failure of fasteners connecting the uprights and horizontal bars, and excessive pressure. By combining BIM technology and finite element analysis, the system can respond to dangerous situations within seconds, reminding workers to evacuate the danger zone in an emergency and automatically triggering various alarm notifications to promptly inform supervisors of the on-site situation, effectively reducing construction safety risks.

[0003] Currently, the high-support formwork safety monitoring system includes wireless displacement gauges, wireless inclinometers, wireless load cells, a terminal controller, and a comprehensive analyzer. The wireless displacement gauges, inclinometers, and load cells are all installed on the formwork. The wireless displacement gauges are used to monitor formwork settlement and the displacement of the uprights. The wireless inclinometers are used to monitor whether the uprights are tilted. The wireless load cells are generally installed on the crossbars to monitor whether the crossbars are damaged or unstable. The terminal controller receives and processes the monitoring data from the wireless displacement gauges, inclinometers, and load cells, and then transmits the data to the comprehensive analyzer. The comprehensive analyzer analyzes the data, monitors the operating status of each monitoring device, and transmits the data to the control terminal.

[0004] In conventional high-support formwork safety monitoring systems, typically only one wireless displacement meter is installed, positioned transversely along the cap beam. This meter can only monitor formwork settlement and relative displacement of the uprights in the transverse direction, lacking monitoring of these factors in the longitudinal direction, thus affecting the accuracy of formwork safety monitoring. Furthermore, because the wireless displacement meter is fixed to the uprights, the relative position between the meter and the measuring point cannot be guaranteed to change when the formwork tilts. There exists a situation where the meter's mounting post and the measuring point tilt in the same direction and angle. In this case, although the formwork is tilted, the relative position between the meter and the measuring point remains unchanged. The wireless displacement meter cannot detect the change in displacement and therefore cannot accurately report the tilting of the formwork, leading to misjudgments. Summary of the Invention

[0005] In view of this, the present invention aims to propose a high formwork monitoring system to achieve accurate monitoring of high formwork frames and improve the safety of cap beam construction.

[0006] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0007] A high-formwork monitoring system includes supporting components, each comprising multiple uprights, multiple horizontal bars, and connectors linking the uprights and horizontal bars. The uprights and horizontal bars are assembled to form a high-formwork frame for erecting a cap beam. A template is installed on top of the high-formwork frame. Key or weak points of the high-formwork are designated as safety monitoring areas, and monitoring equipment is deployed within these areas.

[0008] A wireless load cell, installed on the pole, is used to monitor the magnitude of the axial force on the pole.

[0009] A wireless inclinometer, mounted on a pole, is used to monitor the incline angle of the pole.

[0010] The wireless displacement gauges are numbered and installed on the same pole. The installation direction is 90°, corresponding to the longitudinal and transverse directions of the cap beam. For the high formwork frame, each of the two wireless displacement gauges is set with a measuring point to monitor the relative displacement between the pole and the measuring point.

[0011] The terminal controller and the integrated analyzer are both installed on the high-support formwork frame. The input end of the terminal controller is wirelessly connected to the wireless load cell, the wireless inclinometer, and the wireless displacement cell, respectively. The output end of the terminal controller is wirelessly connected to the input end of the integrated analyzer, and the output end of the integrated analyzer is wirelessly connected to the monitoring cloud platform.

[0012] Furthermore, the key or weak points of high formwork support are the areas with relatively large cross-sectional widths at the mid-span of the cast-in-place beam and the areas with relatively poor foundation bearing capacity.

[0013] Furthermore, several bottom beams are provided at the bottom of the template, and a top support is provided at the top of the upright. The top support supports the bottom beams, and the monitoring probe of the wireless load cell is located between the top support and the bottom beams. The monitoring probe, the upright, and the template are all subjected to the same vertical line and share the force.

[0014] Furthermore, the output of the integrated analyzer is wirelessly connected to an audible and visual alarm, which is mounted on the high-support frame.

[0015] Furthermore, the wireless displacement meter is a laser displacement meter. The reflector plate matched with the laser displacement meter is installed at the corresponding measuring point. The pole for installing the wireless displacement meter is equipped with a box containing liquid, and a float is floating inside the box. The wireless displacement meter is installed on the float. The box has a monitoring hole, and the laser emitting end of the wireless displacement meter is directly facing the reflection measuring point of the reflector plate through the monitoring hole.

[0016] Furthermore, the float is symmetrically provided with two limiting mechanisms on each of its left and right sides and front and rear sides. The float position is fixed relative to each other by the four limiting mechanisms. The limiting mechanism includes a fixed sleeve, a positioning pin and a spring. The fixed sleeve is installed on the box wall of the box body. The inner end of the positioning pin is movably inserted into the fixed sleeve. The spring is set in the fixed sleeve, and both ends of the spring abut against the positioning pin and the box wall. The outer end of the positioning pin abuts against the side wall of the float.

[0017] Furthermore, pressure sensors are respectively installed between the positioning pins of the two limiting mechanisms on the left and right sides and the float. The pressure sensors are mounted on the positioning pins and are wirelessly connected to the terminal controller.

[0018] Furthermore, the liquid contained inside the box is silicone oil or ethylene glycol.

[0019] Furthermore, the pontoon is a square plastic pontoon or a resin pontoon.

[0020] Compared with existing technologies, the high formwork monitoring system of the present invention has the following advantages:

[0021] (1) In this invention, two wireless displacement meters are set at 90° on the same upright to monitor the settlement of the formwork and the relative displacement of the upright in both the longitudinal and transverse directions of the cap beam, thereby improving the accuracy of safety monitoring of the high-support formwork frame.

[0022] (2) In this invention, the wireless displacement meter adopts a laser displacement meter and floats on the solution contained in the box through a float, so that the wireless displacement meter will always maintain the initial placement state and its laser emission will always remain horizontal. It can promptly feed back the positional changes between the uprights of the installation box and the measuring point, and there will be no misjudgment, thus improving the accuracy of safety monitoring of the high support frame.

[0023] (3) In this invention, the pressure sensor of the left and right side limiting mechanism of the float can monitor whether the upright of the installation box is tilted in the left and right directions and generate an alarm signal, thereby improving the accuracy and convenience of safety monitoring of the high formwork frame. Attached Figure Description

[0024] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0025] Figure 1 This is a schematic diagram of a high formwork monitoring system according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the installation of a wireless displacement meter and a reflector on a high-support formwork frame in an embodiment of the present invention;

[0027] Figure 3This is a front view of the wireless displacement meter installed inside the box in this embodiment;

[0028] Figure 4 This is a top view of the wireless displacement meter installed inside the box in this embodiment.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1-Upright pole; 2-Horizontal bar; 3-Reflector; 4-Wireless displacement meter; 5-Terminal controller; 6-Wireless load cell; 7-Wireless inclinometer; 8-Template; 9-Comprehensive analyzer; 10-Audible and visual alarm; 11-Box; 12-Limiting mechanism; 13-Float; 14-Monitoring hole; 121-Fixing sleeve; 122-Positioning pin; 123-Spring; 41-Laser emitter. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] like Figure 1 As shown, a high-support formwork monitoring system includes supporting components, which include multiple uprights 1, multiple horizontal bars 2, and connectors connecting the uprights 1 and horizontal bars 2. The uprights 1 and horizontal bars 2 are assembled to form a high-support formwork frame for erecting the cap beam. The top of the high-support formwork frame supports a formwork 8. The formwork 8 is supported by bottom beams (not shown in the figure) on top supports (not shown in the figure) set on the top of the uprights 1 of the high-support formwork frame. Several bottom beams supporting the formwork 8 are arranged side by side and supported by the top supports. The formwork 8 is set on these bottom beams and supported by them. This is a conventional structure for high-support formwork support and will not be described in detail here. Since the cross-sectional width of the cast-in-place beam at the mid-span and the bearing capacity of the foundation are relatively large areas of the high-support formwork and are important safety monitoring areas, monitoring equipment is deployed in these areas. The monitoring equipment includes wireless load cells 6, wireless inclinometers 7, and wireless displacement meters 4. Wireless load cell 6, wireless inclinometer 7 and wireless displacement meter 4 are all existing monitoring devices, such as the WH-WLS wireless load cell, the WH-WTS wireless inclinometer and the WH-WDS wireless displacement meter.

[0033] The specific explanation is as follows:

[0034] A wireless load cell 6 is installed on the upright 1 to monitor the axial force on the upright 1. Preferably, the monitoring probe of the wireless load cell 6 is positioned between the top support and the bottom beam, and the monitoring probe, the upright, and the formwork are all on the same vertical line and share the force. A wireless inclinometer 7 is installed on the upright 1 to monitor the tilt angle of the upright 1. Two wireless displacement gauges 4 are installed on the same upright 1, with their installation direction at 90°, corresponding to the longitudinal and transverse directions of the cap beam. Each of the two wireless displacement gauges 4 has a measuring point. By monitoring the relative displacement between the upright and the measuring point, it is determined whether the high formwork has settled or tilted. It should be noted that the wireless load cell 6, wireless inclinometer 7, and wireless displacement gauge 4 are preferably installed on different uprights 1 within the safety monitoring area, setting up multiple monitoring points to monitor changes in the formwork status in this area, thereby improving monitoring accuracy. Two wireless displacement gauges 4 are installed on the same pole 1 to monitor the changes in the status of the cover beam in both the lateral and longitudinal directions, preventing misjudgments when the formwork is tilted in one direction in the lateral or longitudinal direction, and improving the accuracy of formwork monitoring.

[0035] A terminal controller 5, a comprehensive analyzer 9, and an audible and visual alarm 10 are also installed on the high-support formwork frame. These are all existing devices, such as the WH-ICP terminal controller, the WH-CAI-V4.0 comprehensive analyzer, and the WH-WOA wireless alarm. The input terminals of the terminal controller 5 are wirelessly connected to the wireless load cell 6, the wireless inclinometer 7, and the wireless displacement meter 4, respectively. The output terminal of the terminal controller 5 is wirelessly connected to the input terminal of the comprehensive analyzer 9, and the output terminal of the comprehensive analyzer 9 is wirelessly connected to the monitoring cloud platform and the audible and visual alarm 10. The terminal controller 5 receives and processes the monitoring data from the wireless load cell 6, the wireless inclinometer 7, and the wireless displacement meter 4, and then transmits the corresponding data to the comprehensive analyzer 9. The comprehensive analyzer 9 analyzes the received data to determine the operating status of the corresponding monitoring equipment. The comprehensive analyzer 9 then transmits the received data and analysis results to the monitoring cloud platform and the audible and visual alarm 10. If a safety hazard is detected, the audible and visual alarm 10 is triggered.

[0036] In this invention, the wireless displacement meter 4 is preferably a laser displacement meter, and the reflector 3 matched with the laser displacement meter is installed at the corresponding measuring point position, see... Figure 2As shown, the pole 1 on which the wireless displacement meter 4 is installed is equipped with a sealed housing 11. The housing 11 contains a liquid, which can be water, or a non-toxic and low-volatility silicone oil or ethylene glycol liquid. A float 13 is installed inside the housing 11, preferably a square plastic or resin float. The float 13 floats on the liquid contained in the housing 11. The wireless displacement meter 4 is installed on the float 13. A monitoring hole 14 is provided in the housing 11. The monitoring hole 14 has a strip-shaped structure. The laser emitting end 41 of the wireless displacement meter 4 is directly facing the reflection measuring point of the reflector plate 3 through the monitoring hole 14. The wireless displacement meter 4 emits a laser beam through the monitoring hole 14. The laser beam is reflected by the reflection measuring point and then transmitted to the receiving end of the wireless displacement meter 4 through the monitoring hole 14. The structure and principle of the laser displacement meter are existing technologies and will not be described in detail here.

[0037] In this invention, the wireless displacement meter 4 floats on the liquid surface via a float. Even if the housing is tilted (at which time the upright is tilted), the position of the wireless displacement meter 4 will not change, ensuring that the laser line of the wireless displacement meter 4 is emitted horizontally. This allows for timely monitoring of changes in the position of the measuring point. Even if the reflective measuring point of the transmitting plate and the upright of the housing are tilted forward or backward in the same direction, although the relative position between the reflective measuring point and the housing remains unchanged, the relative position between the reflective measuring point and the wireless displacement meter 4 changes. The wireless displacement meter 4 detects the displacement change and sends out position change information, preventing misjudgments and achieving accurate monitoring of the mold frame's safety.

[0038] like Figure 3 , Figure 4 As shown, a limiting mechanism 12 is provided around the float 13, with the two limiting mechanisms 12 on the left and right sides symmetrically arranged, and the two limiting mechanisms 12 on the front and rear sides symmetrically arranged. In this invention, the front, rear, left, and right orientations of the float 13 are named with reference to the laser line of the wireless displacement meter 4: the laser emitting end of the wireless displacement meter 4 is named the front end, the other end is named the rear end, and the left and right sides of the laser line are the left and right sides of the wireless displacement meter 4. The four limiting mechanisms 12 fix the position of the float 13 relatively, keeping the float position relatively stationary, and the laser line is kept horizontal and emitted from the monitoring hole 14 towards the reflection measuring point on the transmitting plate 3.

[0039] The limiting mechanism 12 includes a fixed sleeve 121, a positioning pin 122, and a spring 123. The fixed sleeve 121 is installed on the wall of the housing 11. The inner end of the positioning pin 122 is movably inserted into the fixed sleeve 121. The spring 123 is located inside the fixed sleeve 121, with both ends of the spring 123 abutting against the inner end of the positioning pin 122 and the housing wall. The outer end of the positioning pin 122 abuts against the side wall of the float 13. Pressure sensors are respectively installed between the positioning pins 122 and the float 13 of the two limiting mechanisms 12 on the left and right sides. The pressure sensors are installed on the positioning pins and are wirelessly connected to the terminal controller 5. Since the two limiting mechanisms on the left and right sides of the float and the two limiting mechanisms at the front and rear are symmetrically arranged, the four limiting mechanisms can keep the float 13 at the center of the liquid surface, that is, the position of the wireless displacement meter 4 relative to the liquid surface remains unchanged, and the laser line emission position remains basically unchanged. When the formwork tilts to the left or right, that is, when the measuring point and the upright of the mounting box 11 tilt to the left or right at the same time, even if the tilt angle is very small, the wireless displacement meter 4 can still emit laser to the reflective measuring point of the transmitting plate 3. However, the posture of the box changes, and the force exerted by the two limiting mechanisms 12 on the left and right sides of the float 13 on the float 13 changes. The pressure sensor senses the pressure change and generates a signal that is transmitted to the terminal controller 5, which eventually generates an alarm signal. The audible and visual alarm sounds, reminding the workers that there is a safety hazard in the high formwork frame.

[0040] In this invention, a wireless load cell 6, a wireless inclinometer 7, and a wireless displacement meter 4 are used to monitor the safety of high formwork. Two wireless displacement meters 4 are installed at 90° angles to monitor the settlement of the formwork and the displacement of the uprights in both the longitudinal and transverse directions of the cap beam, thereby improving the accuracy of high formwork monitoring and ensuring construction safety.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high formwork monitoring system characterized by: The application relates to a high-formwork-supporting frame for erecting a cover beam, which comprises support members, the support members comprising a plurality of vertical poles (1), a plurality of horizontal poles (2) and connecting members connecting the vertical poles (1) and the horizontal poles (2), the vertical poles (1) and the horizontal poles (2) being arranged to form the high-formwork-supporting frame for erecting the cover beam, a formwork (8) being arranged on the top of the high-formwork-supporting frame, and the key positions or weak positions of the high-formwork-supporting frame being safety monitoring areas, and monitoring equipment being arranged in the safety monitoring areas. A wireless load cell (6) is arranged on the vertical pole (1) to monitor the axial force of the vertical pole (1). A wireless inclinometer (7) is arranged on the vertical pole (1) to monitor the inclination angle of the vertical pole (1). Two wireless displacement meters (4) are arranged on the same vertical pole (1) and are arranged in directions that are 90 DEG to each other and correspond to the longitudinal direction and the transverse direction of the cover beam, and the high-formwork-supporting frame is provided with a measuring point corresponding to each of the two wireless displacement meters (4) to monitor the relative displacement between the vertical pole and the measuring point. A terminal control instrument (5) and a comprehensive analyzer (9) are arranged on the high-formwork-supporting frame, the input end of the terminal control instrument (5) is wirelessly connected with the wireless load cell (6), the wireless inclinometer (7) and the wireless displacement meter (4), the output end of the terminal control instrument (5) is wirelessly connected with the input end of the comprehensive analyzer (9), and the output end of the comprehensive analyzer (9) is wirelessly connected with a monitoring cloud platform. The wireless displacement meter (4) is a laser displacement meter, a reflecting plate (3) matched with the laser displacement meter is arranged at the corresponding measuring point position, a box (11) is arranged on the vertical pole (1) on which the wireless displacement meter (4) is arranged, the box (11) contains liquid, a float (13) is arranged in the liquid, the wireless displacement meter (4) is arranged on the float (13), the box (11) is provided with a monitoring hole (14), and the laser emission end of the wireless displacement meter (4) is arranged to face the reflecting measuring point of the reflecting plate (3) through the monitoring hole (14). Two limiting mechanisms (12) are symmetrically arranged on the left and right side walls and the front and back side walls of the float (13), the position of the float (13) is relatively fixed through the four limiting mechanisms (12), the limiting mechanism (12) comprises a fixed sleeve (121), a positioning pin (122) and a spring (123), the fixed sleeve (121) is arranged on the wall of the box (11), the inner end of the positioning pin (122) is movably inserted into the fixed sleeve (121), the spring (123) is arranged in the fixed sleeve (121), and the two ends of the spring (123) abut against the positioning pin (122) and the wall of the box (11), and the outer end of the positioning pin (122) abuts against the side wall of the float (13). Pressure sensors are arranged between the positioning pins (122) of the two limiting mechanisms (12) on the left and right sides and the float (13), the pressure sensors are arranged on the positioning pins, and the pressure sensors are wirelessly connected with the terminal control instrument (5).

2. A high formwork monitoring system according to claim 1, wherein: The key positions or weak positions of the high-formwork-supporting frame are places where the cross-sectional width of the cast-in-place beam across the middle is relatively large and places where the bearing capacity of the foundation is relatively poor.

3. The high formwork monitoring system of claim 1, wherein: The bottom of the formwork (8) is provided with a plurality of bottom beams, the top of the vertical pole (1) is provided with a top support, the top support supports the bottom beams, and the monitoring probe of the wireless load cell (6) is arranged between the top support and the bottom beams, the monitoring probe, the vertical pole and the formwork are stressed on the same vertical line and jointly bear the stress.

4. The high formwork monitoring system of claim 1, wherein: The comprehensive analyzer (9) is wirelessly connected with an audible and light alarm (10) at the output end, and the audible and light alarm (10) is arranged on the high formwork frame.

5. The high formwork monitoring system of claim 1, wherein: The liquid contained in the box (11) is silicone oil or ethylene glycol liquid.

6. The high formwork monitoring system of claim 1, wherein: The float (13) is a square plastic float or a resin float.

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