Bridge construction safety monitoring control device based on digital twinning and use method thereof

Abstract

The invention provides a bridge construction safety monitoring control device based on digital twinning and a use method thereof, and belongs to the technical field of bridge construction monitoring, the device comprises an upper concrete bridge, three groups of detection nodes are arranged between a U-shaped cover beam and the upper concrete bridge, and a magnetic position identification module is inserted into the side part of a pressure sensing monitoring module. According to the method, the digital twin model of the bridge structure is constructed by using model theory parameterization, a basis is provided for refined safety management and control of the subsequent bridge construction process, and bridge construction safety analysis is carried out based on the actual bridge structure digital twin model in combination with various monitoring data in the concrete bridge construction process; therefore, the safety risk source in the construction process is effectively identified, and the intelligent level of the bridge construction process is improved. Whether the bridge sinks or not, deformation cracks and the stress condition are effectively monitored through the magnetic position identification, the monitoring camera, the deformation monitoring semi-ring and the pressure sensing monitoring module, and convenience is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of bridge construction monitoring, and specifically relates to a bridge construction safety monitoring and control device based on digital twins and a use method thereof. Background Art

[0002] my country's highway bridge construction is developing at an unprecedented scale. Concrete bridges appeared in the 1930s and have made great progress since the 1950s. Bridges have broad application prospects due to their large span, light weight, high bearing capacity, economical and reasonable design, and less investment in temporary facilities.

[0003] In recent years, with the rapid development of my country's economy, technology and equipment manufacturing industry, the industrialization level of bridge construction in my country has been qualitatively improved. In the traditional bridge construction industry, human factors account for a large proportion of the quality. How to monitor and control the bridge construction situation during the bridge construction process and adjust the construction plan in time has become a problem.

[0004] Digital twins make full use of physical models, sensor updates, operation history and other data, integrate multi-disciplinary, multi-physical quantity, multi-scale, and multi-probability simulation processes, complete mapping in virtual space, and thus reflect the entire life cycle of the corresponding physical equipment.

[0005] With the maturity of the concept of digital twins and the development of technology, a digital twin world is being continuously constructed, from components to complete machines, from products to production lines, from production to services, from static to dynamic. Digital twins transfer entity data to virtual space in real time, providing a virtual foundation for realizing a digital, intelligent, and networked industrial model, and providing an increasingly clear exploration path for human imagination of the future. Digital twin technology is also widely used in bridge construction.

[0006] The patent application with publication number CN117387559B provides a concrete bridge monitoring system and method based on digital twins. The system updates the model in real time by collecting the bridge structure parameters of each detection node on the concrete bridge in real time, and monitors the deformation of the concrete bridge by collecting the site monitoring parameters. Simulation models are established respectively and then linked to the digital twin model. The information interaction function of the digital twin model is used to correct the simulation model in a more timely and accurate manner according to the feedback deformation data, thereby realizing the function of artificial intelligence-assisted safety prediction and providing quality assurance for construction. The present invention links the bridge information model to the digital twin, simulates the influence of the internal force of the bridge through the algorithm prediction model, and the digital twin model provides real-time feedback and regulation for the entire construction process, thereby improving the information utilization rate in construction operations, ensuring the project quality to a certain extent, and providing convenience for bridge construction management and control.

[0007] The patent application with publication number CN114925562A provides a digital twin system and method for prefabricated bridges, including five types of modules: physical entity module, digital twin, perception control module, data management module, and application service module. This type of technology is aimed at the full assembly of piers, beams, foundations, crash barriers, wet joints, bearings, and bridge deck pavement. From the factory to the on-site assembly, component-level, part-level, and system-level digital twins are established. The above construction process is monitored based on the Internet of Things technology, and the monitoring results are transmitted to the digital twin in real time to obtain a digital twin system of the physical entity. On this basis, predictions and scientific decisions are made for the construction process of prefabricated and assembled bridges. The present invention provides a program guidance for the intelligent construction of prefabricated and assembled bridges.

[0008] The patent application with publication number CN202582472U provides a prestressed concrete box girder shrinkage creep self-identification monitoring system, including a data measurement unit for measuring the shrinkage strain of the prestressed concrete box girder and the strain of the prestressed concrete, and simultaneously measuring the temperature value of the measurement point; a data acquisition unit for collecting the data measured by the data measurement unit and transmitting it to the data control and creep identification unit; a data control and creep identification unit for processing the data collected by the data acquisition unit, automatically separating the shrinkage and creep strain increments of the concrete, and giving the creep strain value accordingly. The variable data measured by the data measurement unit collected by the data acquisition unit is processed by the data control and creep identification unit to obtain the creep strain value of the concrete changing with time, thereby giving the development law of the measured shrinkage and creep strain of the bridge superstructure concrete, and realizing accurate prediction of the long-term creep deformation of the long-span prestressed concrete box girder bridge.

[0009] Although the above technical solutions can facilitate bridge monitoring to a certain extent, there are still certain problems. First, it is impossible to effectively control the safety of bridge construction; second, the monitoring equipment is inconvenient to operate and cannot be effectively monitored in real time.

[0010] In summary, it is of great significance to carry out research on the technology of bridge construction safety monitoring and control devices based on digital twins. Summary of the invention

[0011] In order to comprehensively solve the above problems, especially to address the shortcomings of the prior art, the present invention provides a bridge construction safety monitoring and control device based on digital twins and its use method, which can comprehensively solve the problems of inability to effectively control bridge construction safety, inconvenient operation of monitoring equipment, and inability to effectively monitor in real time.

[0012] To achieve the above purpose, the present invention adopts the following technical means: In the first aspect, the present invention provides a bridge construction safety monitoring and control device based on digital twins, including a concrete upper bridge, a group of U-shaped cap beams are provided at the lower position between two groups of the concrete upper bridges, three groups of cylindrical piers are installed at the lower part of the U-shaped cap beams, and the cylindrical piers are installed on the ground, three groups of detection nodes are provided between the U-shaped cap beams and the concrete upper bridge, and a group of pressure sensing monitoring modules are installed on each node, a magnetic position identification module is plugged into the side of the pressure sensing monitoring module, a lifting module is provided at the lower part of the magnetic position identification module, and a deformation monitoring semi-ring module is provided at the lower part of the lifting module, and the two groups of deformation monitoring semi-ring modules are combined together to form a circular ring to enclose the cylindrical pier in the middle, and a monitoring camera module is installed on the ground on the side of the cylindrical pier.

[0013] The pressure sensing monitoring module is used to collect the force change data during the construction of the U-shaped cap beam and the cylindrical pier. The deformation monitoring semi-ring module is provided with an ultrasonic sensing unit, which is used to collect deformation crack data in the cylindrical pier. The monitoring camera module monitors the position information of the magnetic position identification module in real time.

[0014] A first wireless transmitter is installed inside the pressure sensing monitoring module, and a second wireless transmitter is installed inside the deformation monitoring semi-ring module 6. The information monitored by the pressure sensing monitoring module, the deformation monitoring semi-ring module and the monitoring camera module is transmitted to the receiving module in the external digital twin model optimization module, and simulation analysis is performed through the digital twin model optimization module.

[0015] Optionally, a pressure sensor is nested in the middle of the pressure sensing monitoring module, a first wireless transmitter is provided on the upper part of one side of the pressure sensor, a socket is provided on the side of the pressure sensing monitoring module, the material of the shell of the pressure sensing monitoring module is a metal material that can be adsorbed by the magnetic position identification module, and fixing bolts are provided at the four corners of the pressure sensing monitoring module, and the pressure sensing monitoring module is installed to the upper part of the U-shaped cap beam through the fixing bolts.

[0016] Optionally, a mounting frame is provided on the upper portion of the magnetic position identification module, a magnetic socket is provided at the front end of the mounting frame, and a controller is installed in the mounting frame.

[0017] Optionally, a lifting module is fixedly installed at the bottom of the mounting frame, and the lifting module is at the rear of the magnetic position identification module. A first driving motor is installed at the top of the lifting module, a screw rod is installed at the output end of the first driving motor, a lifting slide is sleeved on the screw rod, a first hydraulic pump is provided at the bottom of the lifting slide, and a first hydraulic telescopic frame is provided at the bottom of the first hydraulic pump.

[0018] Optionally, a first frame plate is installed at the bottom of the first hydraulic telescopic frame, and a first connecting frame and a second connecting frame are symmetrically installed on both sides of the first frame plate, the other end of the first connecting frame is connected to the deformation monitoring semi-ring module, and the other end of the second connecting frame is connected to a power box.

[0019] Optionally, an arc-shaped slide rail is provided inside the deformation monitoring semi-ring module, a lubricating oil tank is provided on the side of the arc-shaped slide rail, a pressure pump is provided on the side of the lubricating oil tank, and an oil hole is provided between the lubricating oil tank and the arc-shaped slide rail.

[0020] Optionally, a half-ring gear is slidably connected in the arc-shaped slide rail, a slider seat is provided on the inner ring of the half-ring gear, an ultrasonic sensing unit is installed on the outside of the slider seat, a second wireless transmitter is installed on the upper end of the side of the ultrasonic sensing unit, and a locator is provided in the middle position of the side of the ultrasonic sensing unit.

[0021] The side of the deformation monitoring semi-ring module is connected to the power box, and a second drive motor is provided at the bottom of the power box. The output end of the second drive motor is connected to a rotating shaft, and a linkage gear is installed on the upper part of the rotating shaft. The linkage gear is meshed and connected with the semi-ring gear.

[0022] Optionally, a laser sensor is installed on the upper part of the inner ring of the deformation monitoring semi-ring module, a second hydraulic pump is installed on the bottom of the inner ring of the deformation monitoring semi-ring module, a second hydraulic telescopic frame is provided at the front end of the second hydraulic pump, a second frame plate is installed at the front end of the second hydraulic telescopic frame, a connecting rod is provided at the front end of the second frame plate, a supporting moving wheel is installed at the front end of the connecting rod, and a group of fixed frames are provided at each end of the deformation monitoring semi-ring module. The two groups of fixed frames at both ends of the deformation monitoring semi-ring module are fixed together by external screw columns after docking.

[0023] In a second aspect, the present invention provides a method for using the digital twin-based bridge construction safety monitoring and control device according to the first aspect, comprising the following steps: S1. Bridge construction preparation: input bridge design and construction related information into the external digital twin model optimization module; S2. Installing pressure sensing modules: During the bridge construction process, after the U-shaped cap beam and cylindrical bridge piers are built, a set of pressure sensing monitoring modules is installed on each of the three nodes on the U-shaped cap beam, and then the pressure sensing monitoring modules are installed synchronously at the transversely symmetrical positions of the U-shaped cap beam, for a total of six sets of pressure sensing monitoring modules; S3, installing magnetic position identification modules: installing a set of magnetic position identification modules on the side of each set of pressure sensing monitoring modules, inserting them into the sockets through magnetic sockets, and the magnetic sockets are adsorbed in the sockets by their own magnetism; S4. Assembling deformation monitoring semi-ring modules: lowering the deformation monitoring semi-ring modules to the bottom along the cylindrical bridge pier, and the operators assemble the corresponding two sets of deformation monitoring semi-ring modules together by fixing them together with the fixing frames at both ends; S5. Installing cameras: A monitoring camera module is installed on the ground between the two sets of U-shaped cap beams; S6. Data reception and analysis: Start various monitoring modules, image sensing monitoring of the monitoring camera module, manually fill in construction information during the construction process, and the receiving module of the digital twin model optimization module receives relevant data for analysis. The digital twin model of the bridge structure is constructed parameterized by Tekla software. The digital twin model optimization module provides a basis for the refined safety management and control of the subsequent bridge construction process.

[0024] Compared with the prior art, the present invention has the following beneficial effects: 1. Construction safety control. The present invention uses model theory to parameterize and construct a digital twin model of the bridge structure, providing a basis for the refined safety control of the subsequent bridge construction process. Based on the digital twin model of the actual bridge structure and combined with various monitoring data during the concrete bridge construction process, the bridge construction safety analysis is carried out, thereby effectively identifying the safety risk sources during the construction process and improving the intelligence level of the bridge construction process.

[0025] 2. Convenient bridge construction monitoring. The present invention effectively monitors whether the bridge sinks, deformation cracks and stress conditions through magnetic position identification and monitoring camera, deformation monitoring semi-ring and pressure sensing monitoring module, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a structural schematic diagram of a bridge construction safety monitoring and control device based on digital twin in one embodiment of the present invention; Figure 2 It is a front view of a bridge construction safety monitoring and control device based on digital twin in one embodiment of the present invention; Figure 3 It is a left view of a bridge construction safety monitoring and control device based on digital twin in one embodiment of the invention; Figure 4 is a schematic diagram of a bridge substructure in a bridge construction safety monitoring and control device based on digital twins in one embodiment of the present invention; Figure 5 It is a schematic diagram of the local structure of a bridge monitoring device in a bridge construction safety monitoring and control device based on digital twin in one embodiment of the present invention; Figure 6 is an assembly diagram of a bridge construction safety monitoring and control device based on digital twin in one embodiment of the present invention; Figure 7It is a schematic diagram of opening each monitoring module in a bridge construction safety monitoring and control device based on digital twin in one embodiment of the present invention; Figure 8 is a structural schematic diagram of a pressure sensing monitoring module in a bridge construction safety monitoring and control device based on digital twins in one embodiment of the present invention; Fig. 9 It is a structural schematic diagram of a magnetic position identification module in a bridge construction safety monitoring and control device based on digital twin in one embodiment of the present invention; Fig.10 is a structural schematic diagram of a deformation monitoring semi-ring module in a bridge construction safety monitoring and control device based on digital twin in one embodiment of the present invention; Fig.11 It is a front view of a deformation monitoring semi-ring module in a bridge construction safety monitoring and control device based on digital twin in one embodiment of the present invention; Fig.12 is a cross-sectional view of a deformation monitoring semi-ring module in a bridge construction safety monitoring and control device based on digital twin in one embodiment of the present invention; Fig.13 is a top view of a cross-sectional view of a deformation monitoring semi-ring module in a bridge construction safety monitoring and control device based on digital twin in one embodiment of the present invention; Fig.14 It is a flow chart of the method of using the bridge construction safety monitoring and control device based on digital twin of the present invention.

[0027] In the figure: 1. Concrete bridge; 2. U-shaped cap beam; 3. Cylindrical pier; 4. Ground; 5. Magnetic position identification module; 6. Deformation monitoring semi-ring module; 7. Monitoring camera module; 8. Pressure sensing monitoring module; 9. Lifting module; 10. Digital twin model optimization module; 51. Mounting frame; 52. Magnetic socket; 53. Controller; 61. Arc slide rail; 62. Semi-ring gear; 63. Slider seat; 64. Ultrasonic sensing unit; 65. Power box; 66. Laser sensor; 67. Support moving wheel; 68. Fixed frame; 81. Pressure sensor; 82. Socket; 83. First no wireless transmitter; 84, fixing bolt; 91, first drive motor; 92, screw rod; 93, lifting slide; 94, first hydraulic pump; 95, first hydraulic telescopic frame; 96, first frame plate; 97, second connecting frame; 98, first connecting frame; 101, receiving module; 611, lubricating oil tank; 612, booster pump; 613, oil hole; 641, second wireless transmitter; 642, positioner; 651, second drive motor; 652, rotating shaft; 653, linkage gear; 671, second hydraulic pump; 672, second hydraulic telescopic frame; 673, second frame plate; 674, connecting rod. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings. Example

[0029] like Figures 1 to 6 to Figure 8 and Fig.13 As shown, in one embodiment of the present invention, a bridge construction safety monitoring and control device based on digital twins includes a concrete upper bridge 1, a group of U-shaped cap beams 2 are provided at the lower position between two groups of the concrete upper bridges 1, three groups of cylindrical piers 3 are installed at the lower part of the U-shaped cap beam 2, and the cylindrical piers 3 are installed on the ground 4, three groups of detection nodes are provided between the U-shaped cap beam 2 and the concrete upper bridge 1, and a group of pressure sensing monitoring modules 8 are installed on each node, and a magnetic position identification module 5 is plugged into the side of the pressure sensing monitoring module 8, a lifting module 9 is provided at the lower part of the magnetic position identification module 5, and a deformation monitoring semi-ring module 6 is provided at the lower part of the lifting module 9, and the two groups of deformation monitoring semi-ring modules 6 are combined together to form a circular ring to enclose the cylindrical pier 3 in the middle, and a monitoring camera module 7 is installed on the ground 4 on the side of the cylindrical pier 3.

[0030] A first wireless transmitter 83 is installed inside the pressure sensing monitoring module 8, and a second wireless transmitter 641 is installed inside the deformation monitoring semi-ring module 6. The information monitored by the pressure sensing monitoring module 8, the deformation monitoring semi-ring module 6 and the monitoring camera module 7 is transmitted to the receiving module 101 in the external digital twin model optimization module 10, and simulation analysis is performed through the digital twin model optimization module 10.

[0031] like Figures 7 and 8 As shown, a pressure sensor 81 is nested in the middle of the pressure sensing monitoring module 8, a first wireless transmitter 83 is provided on the upper part of one side of the pressure sensor 81, a socket 82 is provided on the side of the pressure sensing monitoring module 8, the shell of the pressure sensing monitoring module 8 is made of metal material that can be adsorbed by the magnetic position identification module 5, and fixing bolts 84 are provided at the four corners of the pressure sensing monitoring module 8, and the pressure sensing monitoring module 8 is installed to the upper part of the U-shaped cap beam 2 through the fixing bolts 84.

[0032] A mounting frame 51 is disposed on the upper portion of the magnetic position identification module 5 , a magnetic socket 52 is disposed at the front end of the mounting frame 51 , and a controller 53 is installed in the mounting frame 51 .

[0033] like Figures 9 to 11As shown, a lifting module 9 is fixedly installed at the bottom of the mounting frame 51, and the lifting module 9 is at the rear of the magnetic position identification module 5. A first driving motor 91 is installed at the top of the lifting module 9, and a screw rod 92 is installed at the output end of the first driving motor 91. A lifting slide 93 is sleeved on the screw rod 92. A first hydraulic pump 94 is provided at the bottom of the lifting slide 93, and a first hydraulic telescopic frame 95 is provided at the bottom of the first hydraulic pump 94.

[0034] A first frame plate 96 is installed at the bottom of the first hydraulic telescopic frame 95, and a first connecting frame 98 and a second connecting frame 97 are symmetrically installed on both sides of the first frame plate 96. The other end of the first connecting frame 98 is connected to the deformation monitoring half-ring module 6, and the other end of the second connecting frame 97 is connected to the power box 65.

[0035] Further, such as Figures 8 to 10 As shown, after a group of three cylindrical piers 3 are built, a group of U-shaped cap beams 2 are installed on the upper part thereof, and then a group of pressure sensing monitoring modules 8 are fixedly installed on each of the three nodes on the U-shaped cap beam 2 by fixing bolts 84, and then the pressure sensing monitoring modules 8 are synchronously installed at the transversely symmetrical positions of the U-shaped cap beam 2, for a total of six groups of pressure sensing monitoring modules 8.

[0036] Furthermore, a group of magnetic position identification modules 5 are inserted into the socket 82 on the side of each group of pressure sensing monitoring modules 8, and the magnetic socket 52 of the magnetic position identification module 5 is inserted into the socket 82, and the magnetic socket 52 is adsorbed in the socket 82 by its own magnetism, and then the first drive motor 91 is started, and the first drive motor 91 drives the screw rod 92 to rotate, and the screw rod 92 drives the lifting slide 93 to move downward, and when the lifting slide 93 moves to the bottom of the lifting module 9, the first hydraulic pump 94 is started, and the first hydraulic pump 94 drives the first hydraulic telescopic frame 95 to be fully unfolded, so that the deformation monitoring semi-ring module 6 is lowered to the bottom along the cylindrical pier 3, and the operating personnel fix the corresponding two groups of deformation monitoring semi-ring modules 6 together through the fixing frames 68 at both ends, and then install the monitoring camera module 7 on the ground 4 between the two groups of U-shaped cap beams 2. Example

[0037] like Figures 8 to 13 As shown, in one embodiment of the present invention, a bridge construction safety monitoring and control device based on digital twin, on the basis of Example 1, an arc-shaped slide rail 61 is provided inside the deformation monitoring semi-ring module 6, a lubricating oil tank 611 is provided on the side of the arc-shaped slide rail 61, a pressure pump 612 is provided on the side of the lubricating oil tank 611, and an oil hole 613 is provided between the lubricating oil tank 611 and the arc-shaped slide rail 61.

[0038] A semi-ring gear 62 is slidably connected in the arc-shaped slide rail 61, a slider seat 63 is provided in the inner ring of the semi-ring gear 62, an ultrasonic sensing unit 64 is installed outside the slider seat 63, a second wireless transmitter 641 is installed at the upper end of the side of the ultrasonic sensing unit 64, and a positioner 642 is provided in the middle position of the side of the ultrasonic sensing unit 64.

[0039] The side of the deformation monitoring semi-ring module 6 is connected to a power box 65, and a second drive motor 651 is provided at the bottom of the power box 65. The output end of the second drive motor 651 is connected to a rotating shaft 652, and a linkage gear 653 is installed on the upper part of the rotating shaft 652. The linkage gear 653 is meshed and connected with the semi-ring gear 62.

[0040] A laser sensor 66 is installed on the upper part of the inner ring of the deformation monitoring semi-ring module 6, and a second hydraulic pump 671 is installed on the bottom of the inner ring of the deformation monitoring semi-ring module 6. A second hydraulic telescopic frame 672 is provided at the front end of the second hydraulic pump 671, and a second frame plate 673 is installed at the front end of the second hydraulic telescopic frame 672. A connecting rod 674 is provided at the front end of the second frame plate 673, and a supporting moving wheel 67 is installed at the front end of the connecting rod 674. A group of fixed frames 68 are respectively provided at both ends of the deformation monitoring semi-ring module 6. The two groups of fixed frames 68 at both ends of the deformation monitoring semi-ring module 6 are fixed together by external screw columns after docking.

[0041] Furthermore, various monitoring modules are started and construction information is manually reported during the construction process. During monitoring, the monitoring camera module 7 uses image sensing to monitor the position information of the magnetic position identification module 5 to determine the subsidence situation. The ultrasonic sensing unit 64 in the deformation monitoring semi-ring module 6 is used to collect deformation crack data in the cylindrical pier 3. The laser sensor 66 senses the distance information from the cylindrical pier 3 in real time to determine whether it is tilted.

[0042] Further, such as Figure 12 to Figure 14 As shown, during the detection, the first drive motor 91 and the first hydraulic pump 94 are started to control the deformation monitoring semi-ring module 6 to move up and down along the cylindrical bridge pier 3. During the movement, the second drive motor 651 in the power box 65 is started, the second drive motor 651 drives the rotating shaft 652 to rotate, the rotating shaft 652 drives the linkage gear 653 to rotate, the linkage gear 653 drives the semi-ring gear 62 to mesh and rotate, the semi-ring gear 62 drives the ultrasonic sensing unit 64 to rotate, and the ultrasonic sensing unit 64 starts operation monitoring. The external computer receives the relevant data for analysis, and the digital twin model of the bridge structure is constructed by parameterization of the Tekla software, and the digital twin model optimization module 10 provides a basis for the subsequent refined safety control of the bridge construction process.

[0043] Furthermore, during the operation monitoring process, the pressure pump 612 of the lubricating oil tank 611 intermittently pressurizes the lubricating oil in the lubricating oil tank 611 to inject the lubricating oil into the arc-shaped slide rail 61 to lubricate the semi-ring gear 62, thereby improving the operation efficiency.

[0044] Working principle: The operator inputs the information related to the bridge design and construction into the external digital twin model optimization module 10.

[0045] During the bridge construction process, after a group of three cylindrical piers 3 are built, a group of U-shaped cap beams 2 are installed on the top thereof, and then a group of pressure sensing monitoring modules 8 are fixedly installed on each of the three nodes on the U-shaped cap beam 2 by fixing bolts 84, and then the pressure sensing monitoring modules 8 are synchronously installed at the transversely symmetrical positions of the U-shaped cap beam 2, for a total of six groups of pressure sensing monitoring modules 8.

[0046] Then, a group of magnetic position identification modules 5 are inserted into the socket 82 on the side of each group of pressure sensing monitoring modules 8, and the magnetic socket 52 of the magnetic position identification module 5 is inserted into the socket 82, and the magnetic socket 52 is adsorbed in the socket 82 by its own magnetism, and then the first drive motor 91 is started, and the first drive motor 91 drives the screw rod 92 to rotate, and the screw rod 92 drives the lifting slide 93 to move downward, and when the lifting slide 93 moves to the bottom of the lifting module 9, the first hydraulic pump 94 is started, and the first hydraulic pump 94 drives the first hydraulic telescopic frame 95 to be fully unfolded, so that the deformation monitoring semi-ring module 6 is lowered to the bottom along the cylindrical pier 3, and the operating personnel fix the corresponding two groups of deformation monitoring semi-ring modules 6 together through the fixing frames 68 at both ends, and then install the monitoring camera module 7 on the ground 4 between the two groups of U-shaped cap beams 2.

[0047] Start various monitoring modules and manually fill in construction information during the construction process. When monitoring, the monitoring camera module 7 uses image sensing to monitor the position information of the magnetic position identification module 5 to determine the subsidence situation. The ultrasonic sensing unit 64 in the deformation monitoring semi-ring module 6 is used to collect deformation crack data in the cylindrical pier 3. The laser sensor 66 senses the distance information from the cylindrical pier 3 in real time to determine whether it is tilted.

[0048] During detection, the first drive motor 91 and the first hydraulic pump 94 are started to control the deformation monitoring semi-ring module 6 to move up and down along the cylindrical pier 3. During the movement, the second drive motor 651 in the power box 65 is started, the second drive motor 651 drives the rotating shaft 652 to rotate, the rotating shaft 652 drives the linkage gear 653 to rotate, the linkage gear 653 drives the semi-ring gear 62 to engage and rotate, the semi-ring gear 62 drives the ultrasonic sensing unit 64 to rotate, and the ultrasonic sensing unit 64 starts operation monitoring.

[0049] The receiving module 101 of the digital twin model optimization module 10 receives relevant data for analysis, and parametrically constructs a digital twin model of the bridge structure through Tekla software, thereby providing a basis for refined safety management and control of the subsequent bridge construction process by relying on the digital twin model optimization module 10.

[0050] During the operation monitoring process, the pressure pump 612 of the lubricating oil tank 611 intermittently pressurizes the lubricating oil in the lubricating oil tank 611 and injects the lubricating oil into the arc-shaped slide rail 61 to lubricate the semi-ring gear 62, thereby improving the operation efficiency. Example

[0051] This embodiment provides a method for using the bridge construction safety monitoring and control device based on digital twins described in Embodiment 1 or Embodiment 2, and the steps are as follows: S1, bridge construction preparation, inputting bridge design and construction related information into the external digital twin model optimization module 10; S2, installing pressure sensing modules. During the bridge construction process, after the U-shaped cap beam 2 and the cylindrical pier 3 are built, a set of pressure sensing monitoring modules 8 is installed on each of the three nodes on the U-shaped cap beam 2, and then the pressure sensing monitoring modules 8 are synchronously installed at the transversely symmetrical positions of the U-shaped cap beam 2, for a total of six sets of pressure sensing monitoring modules 8; S3, installing a magnetic position identification module, installing a set of magnetic position identification modules 5 on the side of each set of pressure sensing monitoring modules 8, inserting them into the socket 82 through the magnetic socket 52, and the magnetic socket 52 is adsorbed in the socket 82 by its own magnetism; S4, assembling the deformation monitoring semi-ring module, lowering the deformation monitoring semi-ring module 6 to the bottom along the cylindrical pier 3, and the operator assembles the corresponding two sets of deformation monitoring semi-ring modules 6 together by fixing frames 68 at both ends thereof; S5, installing a camera, a monitoring camera module 7 is installed on the ground 4 between the two sets of U-shaped cap beams 2; S6. Data reception and analysis: start various monitoring modules, image sensing monitoring of the monitoring camera module 7, manually fill in construction information during the construction process, and the receiving module 101 of the digital twin model optimization module 10 receives relevant data for analysis. The digital twin model of the bridge structure is constructed parameterized by Tekla software, and the digital twin model optimization module 10 provides a basis for the refined safety management and control of the subsequent bridge construction process.

[0052] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bridge construction safety monitoring and control device based on digital twin, comprising a concrete upper bridge (1), a group of U-shaped cap beams (2) are arranged at the lower position between two groups of the concrete upper bridges (1), three groups of cylindrical bridge piers (3) are arranged at the lower part of the U-shaped cap beams (2), and the cylindrical bridge piers (3) are installed on the ground (4), characterized in that: Three groups of detection nodes are arranged between the U-shaped cap beam (2) and the concrete upper bridge (1), and a group of pressure sensing monitoring modules (8) are installed on each node, a magnetic position identification module (5) is plugged into the side of the pressure sensing monitoring module (8), a lifting module (9) is arranged at the bottom of the magnetic position identification module (5), and a deformation monitoring semi-ring module (6) is arranged at the bottom of the lifting module (9), two groups of deformation monitoring semi-ring modules (6) are combined together to form a circular ring with the cylindrical bridge pier (3) in the middle, and a monitoring camera module (7) is installed on the ground (4) on the side of the cylindrical bridge pier (3); The pressure sensing monitoring module (8) is used to collect force change data of the U-shaped cap beam (2) and the cylindrical bridge pier (3) during the construction process; the deformation monitoring semi-ring module (6) is provided with an ultrasonic sensing unit (64); the ultrasonic sensing unit (64) is used to collect deformation crack data in the cylindrical bridge pier (3); the monitoring camera module (7) monitors the position information of the magnetic position identification module (5) in real time; The pressure sensing monitoring module (8) is internally installed with a first wireless transmitter (83), and the deformation monitoring semi-ring module (6) is internally installed with a second wireless transmitter (641). Information monitored by the pressure sensing monitoring module (8), the deformation monitoring semi-ring module (6), and the monitoring camera module (7) is transmitted to a receiving module (101) in an external digital twin model optimization module (10), and simulation analysis is performed through the digital twin model optimization module (10).

2. The bridge construction safety monitoring and control device based on digital twin according to claim 1 is characterized in that: A pressure sensor (81) is nested in the middle of the pressure sensing monitoring module (8), a first wireless transmitter (83) is provided on the upper part of one side of the pressure sensor (81), a socket (82) is provided on the side of the pressure sensing monitoring module (8), the shell of the pressure sensing monitoring module (8) is made of a metal material that can be adsorbed by the magnetic position identification module (5), and fixing bolts (84) are provided at the four corners of the pressure sensing monitoring module (8), and the pressure sensing monitoring module (8) is installed on the upper part of the U-shaped cap beam (2) through the fixing bolts (84).

3. The bridge construction safety monitoring and control device based on digital twin according to claim 2 is characterized in that: A mounting frame (51) is provided on the upper portion of the magnetic position identification module (5), a magnetic socket (52) is provided at the front end of the mounting frame (51), and a controller (53) is installed in the mounting frame (51).

4. The bridge construction safety monitoring and control device based on digital twin according to claim 3 is characterized in that: A lifting module (9) is fixedly mounted at the bottom of the mounting frame (51), and the lifting module (9) is at the rear of the magnetic position identification module (5). A first drive motor (91) is mounted at the top of the lifting module (9). A screw rod (92) is mounted at the output end of the first drive motor (91). A lifting slide (93) is sleeved on the screw rod (92). A first hydraulic pump (94) is disposed at the bottom of the lifting slide (93). A first hydraulic telescopic frame (95) is disposed at the bottom of the first hydraulic pump (94).

5. The bridge construction safety monitoring and control device based on digital twin according to claim 4 is characterized in that: A first frame plate (96) is mounted at the bottom of the first hydraulic telescopic frame (95), a first connecting frame (98) and a second connecting frame (97) are symmetrically mounted on both sides of the first frame plate (96), the other end of the first connecting frame (98) is connected to the deformation monitoring semi-ring module (6), and the other end of the second connecting frame (97) is connected to a power box (65).

6. The bridge construction safety monitoring and control device based on digital twin according to claim 5 is characterized in that: An arc-shaped slide rail (61) is provided inside the deformation monitoring semi-ring module (6), a lubricating oil tank (611) is provided on the side of the arc-shaped slide rail (61), a pressure pump (612) is provided on the side of the lubricating oil tank (611), and an oil hole (613) is provided between the lubricating oil tank (611) and the arc-shaped slide rail (61).

7. The bridge construction safety monitoring and control device based on digital twin according to claim 6 is characterized in that: A semi-ring gear (62) is slidably connected in the arc-shaped slide rail (61), a slider seat (63) is provided on the inner ring of the semi-ring gear (62), an ultrasonic sensing unit (64) is installed on the outside of the slider seat (63), a second wireless transmitter (641) is installed on the upper end of the side of the ultrasonic sensing unit (64), and a positioner (642) is provided in the middle position of the side of the ultrasonic sensing unit (64).

8. The bridge construction safety monitoring and control device based on digital twin according to claim 7 is characterized in that: The side of the deformation monitoring semi-ring module (6) is connected to a power box (65); a second drive motor (651) is provided at the bottom of the power box (65); an output end of the second drive motor (651) is connected to a rotating shaft (652); a linkage gear (653) is installed on the upper part of the rotating shaft (652); and the linkage gear (653) is meshingly connected to the semi-ring gear (62).

9. The bridge construction safety monitoring and control device based on digital twin according to claim 8 is characterized in that: A laser sensor (66) is installed on the upper part of the inner ring of the deformation monitoring semi-ring module (6). The laser sensor (66) senses the distance information from the cylindrical pier (3) in real time to determine whether it is tilted. A second hydraulic pump (671) is installed at the bottom of the inner ring of the deformation monitoring semi-ring module (6). A second hydraulic telescopic frame (672) is installed at the front end of the second hydraulic pump (671). A second frame plate (673) is installed at the front end of the second hydraulic telescopic frame (672). A connecting rod (674) is installed at the front end of the second frame plate (673). A supporting moving wheel (67) is installed at the front end of the connecting rod (674). A set of fixing frames (68) are respectively provided at both ends of the deformation monitoring semi-ring module (6). The fixing frames (68) at both ends of the two sets of deformation monitoring semi-ring modules (6) are fixed together by external screw columns after docking.

10. A method for using the digital twin-based bridge construction safety monitoring and control device according to claim 9, characterized in that: The steps include: S1. Bridge construction preparation: inputting bridge design and construction related information into the external digital twin model optimization module (10); S2, installing the pressure sensing module: during the bridge construction process, after the U-shaped cap beam (2) and the cylindrical bridge pier (3) are constructed, a set of pressure sensing monitoring modules (8) are installed at three nodes on the U-shaped cap beam (2), and then the pressure sensing monitoring modules (8) are installed at the positions of the U-shaped cap beam (2) in a symmetrical manner, for a total of six sets of pressure sensing monitoring modules (8); S3, installing a magnetic position identification module: installing a set of magnetic position identification modules (5) on the side of each set of pressure sensing monitoring modules (8), inserting the magnetic socket (52) into the socket (82), and the magnetic socket (52) is adsorbed in the socket (82) by its own magnetism; S4, assembling the deformation monitoring semi-ring module: lowering the deformation monitoring semi-ring module (6) along the cylindrical bridge pier (3) to the bottom, and the operator assembles the corresponding two sets of deformation monitoring semi-ring modules (6) together by fixing them together through the fixing frames (68) at both ends; S5, installing a camera; a monitoring camera module (7) is installed on the ground (4) between the two sets of U-shaped cap beams (2); S6. Data reception and analysis: Start various monitoring modules, manually fill in construction information during the construction process, and the receiving module (101) of the digital twin model optimization module (10) receives relevant data for analysis. The digital twin model of the bridge structure is parametrically constructed through Tekla software, and the digital twin model optimization module (10) provides a basis for the refined safety management and control of the subsequent bridge construction process.

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