A high-altitude bailey frame load and deformation real-time monitoring device

Abstract

The application relates to the technical field of engineering structure monitoring, and relates to a high-altitude Bailey frame load and deformation real-time monitoring device.The device comprises a Bailey frame structure, the top of the Bailey frame structure is provided with a connected cross frame, the top of the cross frame is provided with a clamped mounting clamp, the top of the cross frame is provided with a positioning seat, the top of the positioning seat is provided with an auxiliary connecting assembly, the top of the mounting clamp is fixedly provided with a sliding block, the side surface of the sliding block is slidably provided with a main system device, the top of the main system device is provided with a storage groove, the top of the storage groove is fixedly provided with a rotating drum, the side surface of the rotating drum is provided with an electric coil, the wire end of the electric coil is fixedly connected with a strain gauge for detecting the load;the device has the beneficial effects that the strain gauge and the grating detector can accurately measure the load and the strain condition of the component, the collected data can be sent to a terminal device in real time through a signal transmitter, real-time detection is realized, the auxiliary connecting effect of the cross frame can be realized through the auxiliary connecting assembly, and the cross frame can be prevented from breaking and falling.

Description

Technical Field

[0001] This invention relates to the field of engineering structure monitoring technology, specifically a real-time monitoring device for the load and deformation of a high-altitude Bailey bridge. Background Technology

[0002] Bailey bridges, as a commonly used prefabricated load-bearing structure, have been widely used in municipal engineering, highway and railway engineering, and water conservancy projects due to their many advantages, such as simple structure, convenient transportation, rapid erection, large load capacity, good interchangeability, and strong adaptability. In high-altitude operation scenarios, Bailey bridges are often used to build construction platforms, formwork supports, and other key structures. However, Bailey bridges in high-altitude environments face complex stress conditions. They must not only bear the weight of their own structure but also the variable loads generated during construction, such as those from construction personnel, equipment, and building materials. Traditional monitoring methods for Bailey bridges mostly rely on regular manual inspections and simple measuring tools. This approach is not only inefficient and consumes a lot of manpower and resources but also suffers from low monitoring frequency and inability to obtain data in real time, making it difficult to meet the stringent safety and reliability requirements of high-altitude Bailey bridges in complex construction environments. Therefore, this invention proposes a real-time monitoring device for the load and deformation of high-altitude Bailey bridges to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide a real-time monitoring device for the load and deformation of high-altitude Bailey bridges, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a real-time monitoring device for load and deformation of a high-altitude Bailey bridge, comprising a Bailey bridge structure, a connecting crossbeam at the top of the Bailey bridge structure, a mounting clip snapped onto the top of the crossbeam, and two sets of mounting clips symmetrically arranged on the sides of the crossbeam, a positioning seat mounted on the top of the crossbeam, an auxiliary connecting component mounted on the top of the positioning seat, a slider fixedly mounted on the top of the mounting clip, a main system device slidably mounted on the side of the slider, a storage slot at the top of the main system device, and two sets of storage slots, a rotating cylinder fixedly mounted on the top of the storage slot, and an electric coil mounted on the side of the rotating cylinder, a strain gauge for detecting load fixedly connected to the end of the wire of the electric coil, and the strain gauge adhering to the top of the crossbeam, a signal transmitter fixedly mounted on the top of the main system device, and a deformation detection sensor fixedly mounted on the bottom of the main system device.

[0005] Preferably, the mounting clip has a reinforcing rib fixedly installed on its side, and a through hole is provided on the side of the mounting clip, with a fastening bolt fitted inside the through hole.

[0006] Preferably, the top of the storage tank is provided with a cover plate, and an integrated arithmetic unit is fixedly provided at the end of the electric coil away from the strain gauge, and the integrated arithmetic unit is wired to the signal transmitter.

[0007] Preferably, an electric push rod is fixedly installed on the top of the positioning seat. The electric push rod is controlled by a signal transmitter, and a push head is provided at the output end of the electric push rod.

[0008] Preferably, a first collar is fixedly installed on the top of the positioning seat, and a second collar is fixedly installed on the top of the positioning seat. A main control rod is provided inside the first collar, and a controlled rod is provided inside the second collar. The inner diameters of the first and second collars are both larger than the diameters of the main control rod and the controlled rod.

[0009] Preferably, the deformation detection sensor is wired to the integrated arithmetic unit, and a data line is fixedly connected to the bottom of the integrated arithmetic unit, with a grating detector for detecting deformation fixedly connected to one end of the other end of the data line.

[0010] Preferably, a connector is fixedly installed on the top of the grating detector, and the connector is used to fix the test end of the grating detector to the bottom of the cross frame by bolts.

[0011] Preferably, the auxiliary connection assembly includes a fixing plate, on which a hydraulic side plate is fixedly installed, and fastening bolts are also installed on the side of the fixing plate. The side of the hydraulic side plate has an insertion hole, which is connected to the main control rod and the controlled rod.

[0012] Preferably, a hydraulic flow groove is provided on the side of the insertion hole, a hydraulic rod is slidably provided at the bottom of the hydraulic flow groove, the hydraulic rod is in contact with the main control rod and the controlled rod, and a reinforcing plate is slidably provided at the bottom of the hydraulic flow groove, the reinforcing plate is in contact with the bottom of the cross frame.

[0013] A monitoring method based on the above-mentioned real-time monitoring device for load and deformation of high-altitude Bailey bridges includes the following steps:

[0014] S1. Select test points based on the equipment's load-bearing structure;

[0015] S2. Clamp the mounting bracket on both sides of the supporting crossbeam and reinforce and limit its position using a fastening bolt structure;

[0016] S3. Fix the positioning seat to the center of the cross frame with bolts, and then clamp and fix the auxiliary connecting assembly to the side of the cross frame with bolts.

[0017] S4. Open the cover and pull out the strain gauge used to detect the load. Attach the strain gauge to the side of the cross frame. Before attaching, ensure the test points on the cross frame are clean. Then, fix the grating detector used to detect deformation to the bottom position in the middle of the cross frame with bolts. Push the main control rod by actively controlling the electric push rod. The main control rod presses the hydraulic rod, which drives the reinforcing plate to rise through the internal hydraulic oil flow, thereby controlling the pressure between the reinforcing plate and the cross frame.

[0018] S5. When the crossbeam deforms due to overload, the strain gauges will stretch or compress along with the crossbeam's deformation. At this time, the resistance of the strain gauges changes, and the resistance data is input to the integrated calculator through the coil to calculate the load on the crossbeam. Since the test end of the grating detector is fixedly connected to the bottom of the crossbeam, after deformation, the two sides of the grating detector are pulled, and the wavelength of the reflected light from the internal grating shifts. The changed data is also transmitted to the integrated calculator through the data line for calculation. Finally, the collected data is sent to the terminal device in real time through the signal transmitter. During the deformation of the crossbeam, the mounting base connected to the top deforms synchronously. The distance between the main control rod and the controlled rod shortens with the deformation. The shortening will compress the hydraulic rod and drive the reinforcing plate to rise through the internal hydraulic oil flow until the crossbeam is excessively deformed and contacts the reinforcing plate, thereby achieving the auxiliary connection effect.

[0019] Compared with existing technologies, the beneficial effects of this invention are as follows: By designing a signal transmitter, strain gauge, deformation sensor, and auxiliary connection components, and utilizing the strain gauge principle, minute load changes can be accurately sensed and converted into electrical signal outputs. The grating detector, utilizing the strain wavelength characteristics of fiber optic gratings, can measure the strain of components in real time and accurately, and then calculate the degree of deformation of the components. The signal transmitter sends the collected data to the terminal device in real time, achieving real-time detection. Furthermore, through the design of the auxiliary connection components, the material deformation limit can be preset by the electric push rod. Utilizing the tensile and compressive changes generated by the deformation of the structure, under the cooperation and sliding of the main control rod, the controlled rod, and the hydraulic rod, these changes are converted into pressure changes in the hydraulic groove. This allows the reinforcing plate to achieve a reinforcing connection effect on the crossbeam under the push of hydraulic oil, preventing the crossbeam from breaking and falling from a height, significantly improving the risk resistance of the Bailey bridge, and effectively preventing safety accidents. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the strain gauge structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the overall structure of the auxiliary connection component of the present invention;

[0023] Figure 4 This is a schematic diagram of the overall structure of the hydraulic side plate of the present invention;

[0024] Figure 5 This is a schematic diagram of the overall structure of the positioning seat of the present invention;

[0025] Figure 6 This is a schematic diagram of the overall structure of the main system of the present invention;

[0026] Figure 7 This is a schematic diagram of the bottom of the main system structure of the present invention;

[0027] Figure 8 This is a front view of the main system structure of the present invention;

[0028] Figure 9 This is a schematic diagram of the axial section of the auxiliary connection component structure of the present invention;

[0029] Figure 10 This is a schematic cross-sectional view of the hydraulic side plate structure of the present invention.

[0030] In the diagram: 1. Bailey bridge frame; 2. Cross frame; 3. Mounting clamp; 4. Positioning seat; 5. Auxiliary connection assembly; 6. Slider; 7. Main system equipment; 8. Storage tank; 9. Rotary drum; 10. Electric coil; 11. Strain gauge; 12. Signal transmitter; 13. Reinforcing rib; 14. Through hole; 15. Fastening bolt; 16. Cover plate; 17. Integrated arithmetic unit; 18. Electric actuator; 19. Push head; 20. First collar; 21. Second collar; 22. Main control rod; 23. Controlled rod; 24. Data cable; 25. Grating detector; 26. Connector; 27. Fixing plate; 28. Hydraulic side plate; 29. ​​Insertion hole; 30. Hydraulic flow channel; 31. Hydraulic rod; 32. Reinforcing plate. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1 to 10 This invention provides a technical solution: a real-time monitoring device for the load and deformation of a high-altitude Bailey bridge, comprising...

[0033] The structure consists of a Bailey bridge frame 1, with a connecting crossbeam 2 at its top. Two sets of mounting clips 3 are symmetrically arranged on the sides of the crossbeam 2, and a slider 6 is fixedly mounted on the top of each clip. A main system device 7 is slidably mounted on the side of the slider 6. Reinforcing ribs 13 are fixedly mounted on the side of each clip. A through hole 14 is provided on the side of each clip, and a fastening bolt 15 is fitted inside the through hole 14. The slider 6 connects to the main system device 7. The structure is simple and adaptable to crossbeam 2 structures of different sizes, facilitating easy fixing.

[0034] The main system device 7 has a storage slot 8 on its top, and there are two sets of storage slots 8. A rotating drum 9 is fixedly installed on the top of the storage slot 8, and an electric coil 10 is installed on the side of the rotating drum 9. The end of the wire of the electric coil 10 is fixedly connected to a strain gauge 11 for detecting the load, and the strain gauge 11 is attached to the top of the crossbeam 2. A signal transmitter 12 is fixedly installed on the top of the main system device 7. A cover plate 16 is provided on the top of the storage slot 8. An integrated calculator 17 is fixedly installed at the end of the electric coil 10 away from the strain gauge 11. The integrated calculator 17 is wired to the signal transmitter 12. The structure design of the rotating drum 9, electric coil 10 and strain gauge 11 can extend the strain gauge 11. The structure is compact, the design is reasonable, and it is convenient for fixed-point testing.

[0035] A deformation detection sensor is fixedly installed at the bottom of the main system device 1. The deformation detection sensor is wired to the integrated arithmetic unit 17. A data line 24 is fixedly connected to the bottom of the integrated arithmetic unit 17, and a grating detector 25 for detecting deformation is fixedly connected to one end of the data line 24. A connector 26 is fixedly installed on the top of the grating detector 25. The connector 26 fixes the test end of the grating detector 25 to the bottom of the cross frame 2 with bolts. When the cross frame 2 is overloaded and deforms, the strain gauge 11 will stretch or compress with the deformation of the cross frame 2. At this time, the resistance of the strain gauge 11 changes, and the resistance data is input to the integrated arithmetic unit 17 through the coil 10 to calculate the load on the cross frame 2. Since the test end of the grating detector 25 is fixedly connected to the bottom of the cross frame 2, after deformation, the two sides of the grating detector 25 are pulled, and the wavelength of the reflected light from the internal grating changes. The changed data is also transmitted to the integrated arithmetic unit 17 through the data line 24 for calculation. Finally, the collected data is sent to the terminal device in real time through the signal transmitter 12.

[0036] An electric push rod 18 is fixedly installed on the top of the positioning seat 4. The electric push rod 18 is controlled by a signal transmitter 12. A push head 19 is provided at the output end of the electric push rod 18. A first collar 20 is fixedly installed on the top of the positioning seat 4. A second collar 21 is fixedly installed on the top of the positioning seat 4. A main control rod 22 is provided inside the first collar 20. A controlled rod 23 is provided inside the second collar 21. The inner diameter of the first collar 20 and the second collar 21 is larger than the diameter of the main control rod 22 and the controlled rod 23.

[0037] A positioning seat 4 is installed on the top of the cross frame 2, and an auxiliary connecting assembly 5 is installed on the top of the positioning seat 4. The auxiliary connecting assembly 5 includes a fixing plate 27, and a hydraulic side plate 28 is fixedly installed on the side of the fixing plate 27. Fastening bolts 15 are also installed on the side of the fixing plate 27. An insertion hole 29 is opened on the side of the hydraulic side plate 28, and the insertion hole 29 is inserted into the main control rod 22 and the controlled rod 23. A hydraulic flow channel 30 is provided on the side of the insertion hole 29, and a hydraulic rod 31 is slidably arranged at the bottom of the hydraulic flow channel 30. The hydraulic rod 31 is in contact with the main control rod 22 and the controlled rod 23. A reinforcing plate 3 is slidably arranged at the bottom of the hydraulic flow channel 30. 2. The reinforcing plate 32 is in contact with the bottom of the cross frame 2. The structure of the electric push rod 18 can be actively controlled. The electric push rod 18 pushes the main control rod 22 to press the hydraulic rod 31. The hydraulic rod 31 is driven by the hydraulic oil in the hydraulic flow groove 30 to push the fixed plate 27, thereby setting the material deformation limit in advance. During the deformation of the cross frame 2, the mounting seat connected to the top will deform synchronously. The distance between the main control rod 22 and the controlled rod 23 will shorten with the deformation. The shortening will press the hydraulic rod 31 to drive the reinforcing plate 32 to rise through the internal hydraulic oil flow until the cross frame 2 is over-deformed and contacts the reinforcing plate 32, thereby achieving the auxiliary connection effect.

[0038] The monitoring method of this device is as follows: First, according to the load-bearing structure of the equipment, test points are selected. The mounting bracket is clamped on both sides of the load-bearing crossbeam 2 and reinforced and limited by the fastening bolts 15. The positioning seat 4 is fixedly connected to the center of the crossbeam 2 by bolts. Then, the auxiliary connecting assembly 5 is clamped and fixed to the side of the crossbeam 2 by bolts. The cover plate 16 is opened and the strain gauge 11 for detecting the load is pulled out and adhered to the side of the crossbeam 2. Before adhesion, the test points of the crossbeam 2 are kept clean. Then, the grating detector 25 for detecting deformation is fixed to the bottom position in the middle of the crossbeam 2 by bolts. The main control rod 22 is pushed by the active control electric push rod 18. The main control rod 22 presses the hydraulic rod 31. The hydraulic rod 31 is driven by the hydraulic oil in the hydraulic flow groove 30 to push the fixed plate 27 to rise, thereby pre-setting the material deformation limit. When the crossbeam 2 is overloaded and deforms, the strain gauge 11 will deform with the crossbeam 2. When the crossbeam is stretched or compressed, the resistance of the strain gauge 11 changes, and the resistance data is input to the integrated arithmetic unit 17 through the coil 10 to calculate the load on the crossbeam 2. Since the test end of the grating detector 25 is fixedly connected to the bottom of the crossbeam 2, after deformation, the two sides of the grating are pulled, and the wavelength of the reflected light from the internal grating shifts. The changed data is also transmitted to the integrated arithmetic unit 17 through the data line 24 for calculation. Finally, the collected data is sent to the terminal device in real time through the signal transmitter 12. During the deformation of the crossbeam 2, the mounting base connected to the top deforms synchronously. The distance between the main control rod 22 and the controlled rod 23 shortens with the deformation. The shortening will compress the hydraulic rod 31 and drive the reinforcing plate 32 to rise through the internal hydraulic oil flow until the crossbeam 2 is excessively deformed and contacts the reinforcing plate 32, thereby achieving an auxiliary connection effect, performing auxiliary connection, avoiding crossbeam breakage, and ensuring the safety of the Bailey bridge.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A real-time monitoring device for load and deformation of a high-altitude Bailey bridge, characterized in that: The system includes a Bailey bridge structure, with a connecting crossbeam at the top. Two sets of mounting clips are symmetrically arranged on the sides of the crossbeam, and a positioning seat is mounted on the top of the crossbeam. An auxiliary connecting component is mounted on the top of the positioning seat. A slider is fixedly mounted on the top of the mounting clip, and a main system device is slidably mounted on the side of the slider. Two sets of storage slots are provided on the top of the main system device. A rotating cylinder is fixedly mounted on the top of the storage slot, and an electric coil is mounted on the side of the rotating cylinder. A strain gauge for detecting load is fixedly connected to the end of the electric coil, and the strain gauge is adhered to the top of the crossbeam. A signal transmitter is fixedly mounted on the top of the main system device, and a deformation detection sensor is fixedly mounted on the bottom of the main system device. The top of the storage tank is provided with a cover plate, and an integrated arithmetic unit is fixedly provided at the end of the electric coil away from the strain gauge. The integrated arithmetic unit is connected to the signal transmitter wire. An electric push rod is fixedly installed on the top of the positioning seat. The electric push rod is controlled by a signal transmitter, and a push head is provided at the output end of the electric push rod. A first collar is fixedly installed on the top of the positioning seat, and a second collar is fixedly installed on the top of the positioning seat. A main control rod is provided inside the first collar, and a controlled rod is provided inside the second collar. The inner diameter of both the first collar and the second collar is larger than the diameter of the main control rod and the controlled rod. The deformation detection sensor is wired to the integrated arithmetic unit. A data line is fixedly connected to the bottom of the integrated arithmetic unit, and a grating detector for detecting deformation is fixedly connected to the other end of the data line. The auxiliary connection assembly includes a fixing plate, on the side of which a hydraulic side plate is fixedly installed, and fastening bolts are also installed on the side of the fixing plate. The side of the hydraulic side plate has an insertion hole, which is connected to the main control rod and the controlled rod. A hydraulic flow groove is provided on the side of the socket, and a hydraulic rod is slidably provided at the bottom of the hydraulic flow groove. The hydraulic rod is in contact with the main control rod and the controlled rod. A reinforcing plate is slidably provided at the bottom of the hydraulic flow groove, and the reinforcing plate is in contact with the bottom of the cross frame. The strain gauges used for load detection are pulled out by opening the cover and then attached to the side of the cross frame. Before attachment, the test points of the cross frame are kept clean. Then, the grating detector used for deformation detection is fixed to the bottom position in the middle of the cross frame with bolts. The main control rod is pushed by the active control electric push rod. The main control rod presses the hydraulic rod, and the hydraulic rod drives the reinforcement plate to rise through the internal hydraulic oil flow, thereby controlling the pressure between the reinforcement plate and the cross frame. When the crossbeam deforms due to overload, the strain gauges stretch or compress along with the crossbeam's deformation. The resistance of the strain gauges changes, and this resistance data is input to the integrated calculator via an electric coil to calculate the load on the crossbeam. Since the test end of the grating detector is fixedly connected to the bottom of the crossbeam, after deformation, the grating detector is pulled on both sides, causing a shift in the wavelength of the reflected light from the internal grating. This change is also transmitted to the integrated calculator via a data line for calculation. Finally, the collected data is sent to the terminal device in real time via a signal transmitter. During the crossbeam's deformation, the mounting base connected to the top deforms synchronously. The distance between the main control rod and the controlled rod shortens with deformation. This shortening compresses the hydraulic rod, driving the reinforcing plate to rise through the internal hydraulic oil flow until the crossbeam excessively deforms and contacts the reinforcing plate, thus achieving an auxiliary connection effect.

2. The real-time monitoring device for load and deformation of a high-altitude Bailey bridge according to claim 1, characterized in that: The mounting clip has a reinforcing rib fixedly installed on its side, and a through hole is opened on the side of the mounting clip, and a fastening bolt is installed in the through hole.

3. The real-time monitoring device for load and deformation of a high-altitude Bailey bridge according to claim 2, characterized in that: A connector is fixedly installed on the top of the grating detector, and the connector is used to fix the test end of the grating detector to the bottom of the cross frame by bolts.

4. A monitoring method for the real-time monitoring device for load and deformation of a high-altitude Bailey bridge according to claim 3, characterized in that: Includes the following steps: S1. Select test points based on the equipment's load-bearing structure; S2. Clamp the mounting bracket on both sides of the supporting crossbeam and reinforce and limit its position using a fastening bolt structure; S3. Fix the positioning seat to the center of the cross frame with bolts, and then clamp and fix the auxiliary connecting assembly to the side of the cross frame with bolts. S4. Pull out the strain gauge used to detect the load by opening the cover and attach the strain gauge to the side of the cross frame. Before attaching, ensure that the test points of the cross frame are clean. Then, fix the grating detector used to detect deformation to the bottom position in the middle of the cross frame with bolts. Push the main control rod by actively controlling the electric push rod. The main control rod presses the hydraulic rod. The hydraulic rod will drive the reinforcement plate to rise through the internal hydraulic oil flow, thereby controlling the pressure between the reinforcement plate and the cross frame. S5. When the crossbeam deforms due to overload, the strain gauges will stretch or compress along with the crossbeam's deformation. At this time, the resistance of the strain gauges changes, and the resistance data is input to the integrated calculator through the coil to calculate the load on the crossbeam. Since the test end of the grating detector is fixedly connected to the bottom of the crossbeam, after deformation, the two sides of the grating detector are pulled, and the wavelength of the reflected light from the internal grating shifts. The changed data is also transmitted to the integrated calculator through the data line for calculation. Finally, the collected data is sent to the terminal device in real time through the signal transmitter. During the deformation of the crossbeam, the mounting base connected to the top deforms synchronously. The distance between the main control rod and the controlled rod shortens with the deformation. The shortening will compress the hydraulic rod and drive the reinforcing plate to rise through the internal hydraulic oil flow until the crossbeam is excessively deformed and contacts the reinforcing plate, thereby achieving the auxiliary connection effect.

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