CN114577102A - Bridge multipoint synchronous movement real-time monitoring method and system and readable storage medium - Google Patents
Bridge multipoint synchronous movement real-time monitoring method and system and readable storage medium Download PDFInfo
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Abstract
The invention discloses a method and a system for monitoring multipoint synchronous movement of a bridge in real time and a readable storage medium, wherein firstly, a non-synchronous movement early warning value of a bridge body displacement control point is determined by carrying out finite element analysis on a stress behavior in the movement process of a bridge body; then, mounting a displacement sensor at each displacement control point of the bridge body, and measuring to obtain displacement monitoring data of each displacement control point; and finally, monitoring and early warning the multipoint synchronous movement of the bridge in real time through the displacement monitoring data and the asynchronous movement early warning value. The invention can monitor the synchronous movement in the bridge construction process in real time, master the change condition of the bridge body in different step displacements in real time, and timely take corresponding measures when the bridge body is abnormal so as to ensure the construction quality and the structure safety. The invention has the characteristics of all weather, automation, no need of communication between monitoring points and the like, and can realize continuous, high-precision, full-automatic and visual bridge multi-point synchronous movement monitoring.
Description
Technical Field
The invention belongs to the technical field of bridge construction monitoring, and particularly relates to a bridge multipoint synchronous movement real-time monitoring method and system and design of a readable storage medium.
Background
The bridge is constructed in a sliding, pushing and other moving way, the traffic under the bridge is not influenced during construction, large-scale hoisting equipment is not needed, and high-altitude operation is not needed, so that the method is particularly suitable for construction of super-large span bridges, long-line approach bridges or three-dimensional crossing of urban bridges; because the beam section is constructed on the fixed site periodically, the construction quality and the construction progress are easy to guarantee.
The bridge moving construction is a dynamic process, and along with the continuous movement, the bridge may be asynchronously pulled to cause distortion risk; in addition, in the moving process, if the action of the longitudinal limiting device on one side fails, the problem that the longitudinal deviation of the bridge is overlarge and the like can be caused. Therefore, the moving synchronism of the construction machine needs to be monitored in real time, and corresponding measures are taken in time when the movement synchronism is abnormal so as to ensure the construction quality and the structure safety.
At present, the traditional mobile monitoring method is mostly adopted in the bridge mobile construction process, for example, a theodolite or a total station is adopted, a prism is installed at a target position, and the mobile monitoring of the bridge is carried out by adopting an intersection method or a coordinate method.
Disclosure of Invention
The invention aims to solve the problems of low precision and insufficient real-time performance of the traditional bridge movement monitoring method, and provides a bridge multipoint synchronous movement real-time monitoring method, a system and a readable storage medium.
The technical scheme of the invention is as follows: the bridge multipoint synchronous movement real-time monitoring method comprises the following steps:
and S1, determining asynchronous movement early warning values of the bridge body displacement control points by carrying out finite element analysis on the stress behaviors of the bridge body in the movement process.
And S2, mounting displacement sensors at the displacement control points of the bridge body, and measuring to obtain displacement monitoring data of the displacement control points.
And S3, monitoring and early warning the multipoint synchronous movement of the bridge in real time through the displacement monitoring data and the asynchronous movement early warning value.
The invention has the beneficial effects that: the invention provides a method for monitoring the synchronous movement of multiple points of a bridge in real time, which can monitor the synchronous movement in the bridge construction process in real time, grasp the change condition of different step displacements of a bridge body in real time, and timely take corresponding measures when the bridge body is abnormal so as to ensure the construction quality and the structure safety.
Further, the multi-point synchronous movement of the bridge comprises the transverse movement of the bridge body along the direction vertical to the axis of the bridge body, the longitudinal movement of the bridge body along the axis of the bridge body and the vertical movement of the bridge body along the direction vertical to the ground.
The beneficial effects of the above further scheme are: the bridge multipoint synchronous movement real-time monitoring method provided by the invention can be applied to real-time monitoring of transverse movement, longitudinal movement and vertical movement of the bridge, and can be used for real-time monitoring of synchronous movement in any one of xyz three directions in the bridge construction process.
Furthermore, the displacement control point is a temporary supporting point in the synchronous moving process of the bridge body.
The beneficial effects of the above further scheme are: in the process of synchronous movement of the bridge body, each temporary supporting point is a stress point for applying a traction external force to the bridge body, the stress points are points needing to monitor displacement synchronism in real time, and the temporary supporting points are used as displacement control points, so that the temporary supporting points are matched with the points needing to monitor displacement actually on one hand, and on the other hand, the displacement control points do not need to be selected additionally, and the method flow is simplified.
Further, step S3 includes the following substeps:
and S31, automatically acquiring displacement monitoring data in real time, and transmitting the displacement monitoring data to a server side for display in a wired transmission mode.
S32, selecting one displacement control point as a reference displacement control point at the server end, calculating the displacement difference value of each of the rest displacement control points and the reference displacement control point, and generating an early warning signal when any one displacement difference value exceeds the asynchronous movement early warning value.
And S33, sending the displacement monitoring data and the early warning signal to a client terminal for display.
The beneficial effects of the above further scheme are: (1) the displacement monitoring data are transmitted to the server end in a wired transmission mode, and compared with a wireless transmission data transmission mode, the displacement monitoring data transmission method is higher in transmission rate, and meets the requirement of real-time monitoring on multi-point synchronous movement of the bridge.
(2) The invention has the characteristics of all weather, automation, no need of communication between monitoring points and the like, and can realize continuous, high-precision, full-automatic and visual bridge multi-point synchronous movement monitoring.
The invention also provides a bridge multipoint synchronous movement real-time monitoring system which comprises sensing equipment, data acquisition equipment, data transmission equipment, a server end and a client terminal which are sequentially in communication connection; the sensing equipment comprises a displacement sensor and a displacement sensor, wherein the displacement sensor is used for measuring displacement monitoring data of each displacement control point of the bridge body; the data acquisition equipment is used for automatically acquiring displacement monitoring data in real time; the data transmission equipment is used for transmitting the displacement monitoring data to the server side; the server side is used for displaying displacement monitoring data, setting asynchronous movement early warning values of the bridge beam displacement control points, selecting one displacement control point as a reference displacement control point according to the displacement monitoring data, calculating displacement difference values of the rest displacement control points and the reference displacement control point, generating an early warning signal when any one displacement difference value exceeds the asynchronous movement early warning value, and sending the displacement monitoring data and the early warning signal to the client terminal; and the client terminal is used for displaying the displacement monitoring data and the early warning signal.
The invention has the beneficial effects that: (1) the invention provides a bridge multipoint synchronous movement real-time monitoring system which can monitor synchronous movement in the bridge construction process in real time, grasp the change condition of different step displacements of a bridge body in real time and take corresponding measures in time when the bridge body is abnormal so as to ensure the construction quality and the structure safety.
(2) The invention has the characteristics of all weather, automation, no need of communication between monitoring points and the like, and can realize continuous, high-precision, full-automatic and visual bridge multi-point synchronous movement monitoring.
Further, the sensing equipment further comprises a strain sensor, a vibration sensor, a temperature and humidity sensor and an air speed and wind direction sensor.
The beneficial effects of the above further scheme are: (1) the sensing equipment provided by the invention can measure the displacement monitoring data of each displacement control point of the bridge body, and also can monitor the strain condition and the vibration acceleration of the bridge body, and when the strain condition or the vibration acceleration of the bridge body exceeds a preset threshold value, an early warning signal is also sent out, so that the distortion of the bridge body is effectively avoided from multiple dimensions.
(2) The sensing equipment can also monitor environmental data such as temperature, humidity, wind speed, wind direction and the like of the bridge construction environment, and timely feeds the data back to workers when extreme weather is encountered or the environment is not suitable for construction.
Furthermore, the data acquisition equipment comprises a power supply module, a main control module and a plurality of channel modules, wherein the power supply module is used for providing adaptive power supplies for the main control module and the channel modules, and each channel module works independently and is controlled by the main control module.
The beneficial effects of the above further scheme are: (1) the built-in power supply module of the data acquisition equipment can independently provide adaptive power supply for other modules of the data acquisition equipment, does not need an external power supply, and saves the energy consumption of the system.
(2) In the data acquisition equipment, the plurality of channel modules work independently, acquire data in parallel and are controlled by the same main control module, so that the working synchronism of each channel is ensured under the condition of ensuring the acquisition efficiency.
Further, the data transmission device comprises an RS-485 bus and a CAN bus optical fiber.
The beneficial effects of the above further scheme are: compared with a wireless transmission data transmission mode, the data transmission equipment has higher transmission rate and meets the requirement of monitoring the multipoint synchronous movement of the bridge in real time.
Further, the server side comprises an intelligent service platform and a monitoring and early warning platform, the intelligent service platform is used for displaying displacement monitoring data, the monitoring and early warning platform is used for setting asynchronous movement early warning values of the bridge body displacement control points, one displacement control point is selected as a reference displacement control point according to the displacement monitoring data, displacement difference values of all the rest displacement control points and the reference displacement control point are calculated, an early warning signal is generated when any one displacement difference value exceeds the asynchronous movement early warning value, and the displacement monitoring data and the early warning signal are sent to the client terminal.
The beneficial effects of the above further scheme are: (1) the intelligent service platform can process the displacement monitoring data into a form of a curve graph, a report form or a chart for visual display, so that non-professionals can also visually know the displacement monitoring data of the bridge body, and the intelligent service platform has higher practicability.
(2) The monitoring and early warning platform can realize real-time monitoring and early warning of synchronous movement in the bridge construction process, and once the displacement of different steps exceeds an early warning value, an early warning signal is sent out immediately, and the subsequent movement is continued after the displacement error is adjusted, so that the structural stability and safety of the bridge body in the movement process are ensured.
The invention also provides a computer readable storage medium, wherein a computer program is stored in the computer readable storage medium, and when the computer program is executed, part or all of the steps of the bridge multipoint synchronous movement real-time monitoring method are realized.
Drawings
Fig. 1 is a flowchart of a bridge multipoint synchronous movement real-time monitoring method provided in embodiment 1 of the present invention.
Fig. 2 is a schematic diagram illustrating a lateral movement of a bridge according to embodiment 2 of the present invention.
Fig. 3 is a schematic view illustrating longitudinal movement of a bridge according to embodiment 2 of the present invention.
Fig. 4 is a schematic view illustrating vertical movement of a bridge according to embodiment 2 of the present invention.
Fig. 5 is a flowchart showing the substeps of providing step S3 according to embodiment 4 of the present invention.
Fig. 6 is a block diagram illustrating a structure of a bridge multipoint synchronous movement real-time monitoring system provided in embodiments 5 to 9 of the present invention.
Detailed Description
Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It is to be understood that the embodiments shown and described in the drawings are merely exemplary and are intended to illustrate the principles and spirit of the invention, not to limit the scope of the invention.
Example 1:
the embodiment of the invention provides a bridge multipoint synchronous movement real-time monitoring method, which comprises the following steps of S1-S3 as shown in FIG. 1:
and S1, determining asynchronous movement early warning values of the bridge body displacement control points by carrying out finite element analysis on the stress behaviors of the bridge body in the movement process.
In the embodiment of the invention, the finite element analysis of the stress behavior of the bridge body in the moving process can be realized by finite element analysis software, such as Maydas, bridge doctor, ANSYS, ABAQUS and the like, and the selection of the specific finite element software is determined according to the actual moving condition of the bridge body.
And S2, mounting displacement sensors at the displacement control points of the bridge body, and measuring to obtain displacement monitoring data of the displacement control points.
And S3, monitoring and early warning the multipoint synchronous movement of the bridge in real time through the displacement monitoring data and the asynchronous movement early warning value.
The bridge multipoint synchronous movement real-time monitoring method provided by the embodiment of the invention can be used for monitoring synchronous movement in the bridge construction process in real time, mastering the change conditions of different step displacements of a bridge body in real time, and timely taking corresponding measures when the bridge body is abnormal so as to ensure the construction quality and the structure safety.
Example 2:
aiming at the multipoint synchronous movement of the bridge in the embodiment 1, the multipoint synchronous movement comprises the transverse movement (referred to as transverse movement for short, as shown in fig. 2) of the bridge body along the direction perpendicular to the axis, the longitudinal movement (referred to as longitudinal movement for short, as shown in fig. 3) of the bridge body along the direction perpendicular to the axis, and the vertical movement (referred to as vertical movement for short, as shown in fig. 4) of the bridge body along the direction perpendicular to the ground.
The bridge multipoint synchronous movement real-time monitoring method provided by the invention can be applied to real-time monitoring of transverse movement, longitudinal movement and vertical movement of the bridge, and can be used for real-time monitoring of synchronous movement in any one of xyz three directions in the bridge construction process.
Example 3:
aiming at the displacement control point in the embodiment 1, the embodiment of the invention selects a temporary supporting point in the synchronous moving process of the bridge body as the displacement control point.
Because the bridge girder body is at synchronous motion's in-process, each interim strong point is promptly to pull the stress point that external force acted on the bridge girder body, and these stress points are exactly the point that need carry out real-time supervision to the displacement synchronism, and arbitrary two adjacent interim strong points displacement is asynchronous all can cause the distortion of bridge girder body, consequently in case discover arbitrary two adjacent interim strong points of support and appear great asynchronization displacement, alright in time propose the early warning. The temporary supporting points are used as displacement control points, on one hand, the temporary supporting points are matched with points which need to monitor displacement actually, on the other hand, the displacement control points do not need to be selected additionally, and the method flow is simplified.
Example 4:
as for step S3 in embodiment 1, as shown in fig. 5, the method includes the following substeps S31 to S33:
and S31, automatically acquiring displacement monitoring data in real time, and transmitting the displacement monitoring data to a server side for display in a wired transmission mode.
The displacement monitoring data are transmitted to the server end in a wired transmission mode, and compared with a wireless transmission data transmission mode, the displacement monitoring data transmission method is higher in transmission rate, and meets the requirement of real-time monitoring on multi-point synchronous movement of the bridge.
S32, selecting one displacement control point as a reference displacement control point at the server end, calculating the displacement difference value of each of the rest displacement control points and the reference displacement control point, and generating an early warning signal when any one displacement difference value exceeds the asynchronous movement early warning value.
In the embodiment of the invention, 4 displacement control points are assumed, the initial displacement value of each displacement control point is 0, and the displacement monitoring values of the 4 displacement control points measured by the displacement sensor at a certain moment are respectively L1、L2、L3And L4If the first displacement control point is selected as the reference displacement control point, the displacement difference between the second displacement control point and the reference displacement control point is DeltaL12＝|L1-L2L, the displacement difference between the third displacement control point and the reference displacement control point is delta L13＝|L1-L3I, the displacement difference between the fourth displacement control point and the reference displacement control point is delta L14＝|L1-L4If is when Δ L12,ΔL13,ΔL14When any displacement difference value exceeds asynchronous movement early warning value delta LmaxThen, an early warning signal is generated.
And S33, sending the displacement monitoring data and the early warning signal to a client terminal for display.
The invention has the characteristics of all weather, automation, no need of communication between monitoring points and the like, and can realize continuous, high-precision, full-automatic and visual bridge multi-point synchronous movement monitoring.
Example 5:
the embodiment of the invention provides a bridge multipoint synchronous movement real-time monitoring system, which comprises a sensing device, a data acquisition device, a data transmission device, a server and a client terminal which are sequentially in communication connection, as shown in fig. 6.
The sensing equipment comprises a displacement sensor and a control device, wherein the displacement sensor is used for measuring displacement monitoring data of each displacement control point of the bridge body; the data acquisition equipment is used for automatically acquiring displacement monitoring data in real time; the data transmission equipment is used for transmitting the displacement monitoring data to the server side; the server side is used for displaying displacement monitoring data, setting asynchronous movement early warning values of the bridge beam displacement control points, selecting one displacement control point as a reference displacement control point according to the displacement monitoring data, calculating displacement difference values of the rest displacement control points and the reference displacement control point, generating an early warning signal when any one displacement difference value exceeds the asynchronous movement early warning value, and sending the displacement monitoring data and the early warning signal to the client terminal; and the client terminal is used for displaying the displacement monitoring data and the early warning signal.
In the embodiment of the invention, the displacement sensor adopts a pull-wire type displacement sensor or a laser displacement sensor, wherein the pull-wire type displacement sensor measures displacement by utilizing a high-flexibility composite steel wire, the steel wire is wound on a roller through a spring, so that the displacement is converted into rotary motion, the roller is directly connected with a precise rotary encoder, and the displacement is converted into current, voltage or digital pulse form for output. The laser displacement sensor can accurately measure the position, the displacement and other changes of a measured object in a non-contact manner, and is mainly applied to measurement of geometric quantities of the object such as displacement, thickness, vibration, distance, diameter and the like. According to the measurement principle, the laser displacement sensor can be divided into a laser triangulation method and a laser echo analysis method, the laser triangulation method is generally suitable for high-precision short-distance measurement, and the laser echo analysis method is used for long-distance measurement. The embodiment of the invention summarizes and selects the displacement monitoring data of each displacement control point of the bridge body measured by a laser triangulation method.
In the embodiment of the invention, the asynchronous movement early warning value of the bridge body displacement control point is generally set to be centimeter level, and the measurement precision of the selected displacement sensor is generally smaller by one order of magnitude than the asynchronous movement early warning value, so that the control precision of the whole bridge multipoint synchronous movement real-time monitoring system can be ensured to reach 1 mm.
The bridge multipoint synchronous movement real-time monitoring system provided by the embodiment of the invention can be used for monitoring synchronous movement in the bridge construction process in real time, and mastering the change condition of different step displacements of a bridge body in real time, so that corresponding measures can be taken in time when the bridge body is abnormal, and the construction quality and the construction safety are ensured. Meanwhile, the bridge multipoint synchronous movement real-time monitoring system provided by the embodiment of the invention has the characteristics of all weather, automation, no need of communication among monitoring points and the like, and can realize continuous, high-precision, full-automatic and visual bridge multipoint synchronous movement monitoring.
Example 6:
as for the sensing device in embodiment 5, in addition to the displacement sensor, as shown in fig. 6, the sensing device further includes a strain sensor, a vibration sensor, a temperature and humidity sensor, and an air speed and wind direction sensor.
Wherein, strain sensor and vibration sensor set up on the truss girder of bridge and the key component of removal slide, can monitor the strain condition and the vibration acceleration of bridge girder body, send early warning signal when the strain condition or the vibration acceleration of bridge girder body surpass predetermined threshold value equally, effectively avoid the distortion of bridge girder body in the follow multiple dimension.
The temperature and humidity sensor and the wind speed and direction sensor can monitor environmental data such as temperature, humidity, wind speed and wind direction of the bridge construction environment, and can feed back the data to workers in time when extreme weather or the environment is not suitable for construction.
In the embodiment of the invention, various sensors in the sensing equipment adopt intelligent memory chips with built-in unique codes, parameters of the sensors can be memorized and stored, the sensor connecting line is frequently dug, cut or pressed to be broken in the construction process, if the connecting line is broken and then reconnected, the sensors can be identified and the parameter information of the sensors can be read again, and waste caused by the fact that the sensors cannot be identified after the connecting line is broken can be avoided.
Example 7:
as for the data acquisition device in embodiment 5, as shown in fig. 6, it includes a power supply module, a main control module, and a channel module.
The power supply module is used for providing adaptive power supplies for the main control module and the channel module, the power supply module in the embodiment of the invention adopts the AC UPS solar power supply module, and the adaptive power supplies are independently provided for the main control module and the channel module in the data acquisition equipment through solar energy without an external power supply, so that the energy consumption of a system is saved.
The channel modules are arranged in a plurality of numbers, the channel modules work independently, collect data in parallel and are controlled by the same main control module, the working synchronism of each channel is guaranteed under the condition that the collection efficiency is guaranteed, and data collection and transmission can be carried out on all the channel modules at the minimum interval of 2s in real time.
In the embodiment of the invention, the data acquisition equipment can measure the vibration wire type signals, the standard voltage/current/resistance signals and the signals of instruments such as sensors of various communication protocols. The data acquisition equipment can be connected with sensors of various different channels in a mixed mode, each channel module is connected with one type of sensor like a mode of plugging and unplugging a computer memory bank, and measurement of 30 channels connected with a single data acquisition equipment can be realized at most by installing a plurality of channel modules.
Example 8:
for the data transmission device in embodiment 5, the embodiment of the present invention includes a wired transmission device such as an RS-485 bus, a CAN bus optical fiber, and a wireless transmission module such as a GPRS module, a 3G/4G module, and a WIFI module. In order to ensure real-time monitoring of the system of the present invention, as shown in fig. 6, the data transmission device in the embodiment of the present invention preferably uses wired transmission devices such as RS-485 bus and CAN bus optical fiber, and transmits the displacement monitoring data to the server end in a wired transmission manner.
Example 9:
for the server in embodiment 5, as shown in fig. 6, it includes an intelligent service platform and a monitoring and early warning platform.
In the embodiment of the invention, the intelligent service platform adopts a BI (business intelligence) business intelligent service platform and is used for displaying the displacement monitoring data. The BI business intelligent service platform comprises three independent cloud service platforms of an SSIS data integration service, an SSRS report service and an SSAS analysis service.
The SSIS data integration service runs a DW data warehouse, and carries out classification, data preprocessing, data secondary processing, data fusion and data storage backup on the original data acquired by the data acquisition equipment. The data preprocessing and the data secondary processing comprise signal conditioning, signal amplification, signal filtering, analog-to-digital conversion and the like.
The SSRS report service provides a report portal site and performs pushing, outputting, downloading and printing of various curve graphs, reports and charts.
The SSAS analysis service can realize a data analysis function and a processing function, and secondary development is carried out aiming at the customized user.
The intelligent service platform can process the displacement monitoring data into a curve graph, a report or a chart for visual display, so that non-professionals can also visually know the displacement monitoring data of the bridge body, and the intelligent service platform has higher practicability.
The monitoring and early warning platform is used for setting asynchronous movement early warning values of bridge body displacement control points, selecting one displacement control point as a reference displacement control point according to displacement monitoring data, calculating displacement difference values of all the other displacement control points and the reference displacement control point, generating early warning signals when any one displacement difference value exceeds the asynchronous movement early warning value, and sending the displacement monitoring data and the early warning signals to a client terminal. The monitoring and early warning platform can realize real-time monitoring and early warning on synchronous movement in the bridge construction process, and once displacement at different steps exceeds an early warning value, an early warning signal is immediately sent out, and subsequent movement is continued after displacement errors are adjusted, so that the structural stability and safety of the bridge body in the movement process are ensured.
In the embodiment of the invention, the monitoring and early warning platform can provide functions of GIS map navigation, data acquisition control, data analysis processing, online early warning, a user interface and the like, wherein the data acquisition control function and the data acquisition equipment are realized together, the data analysis processing and online early warning function and a BI business intelligent service platform are realized together, the user interface function is realized on a data analysis and browsing server provided by Aliskiu, the user interface is responsible for providing a man-machine conversation function, software is compiled by adopting a B/S (browser/server) architecture, and a user can inquire and browse through a terminal device which is on the Internet at any time and place.
For the client terminal in embodiment 5, the embodiment of the present invention employs a mobile phone equipped with a monitoring APP, which is used to implement data sharing and display with a monitoring and early warning platform, and is convenient for a user to check data and early warning information in real time, and has functions of a project list, a stationing list, a data curve graph query, an early warning prompt, and the like.
Example 10:
the embodiment of the invention provides a computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, and when the computer program is executed, part or all of the steps of any one of the bridge multipoint synchronous movement real-time monitoring methods described in the embodiments 1 to 4 of the invention are realized.
In embodiments of the present invention, the computer-readable storage medium may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk, etc., and may be any available medium that can be accessed by a general purpose or special purpose computer. A readable storage medium is coupled to the processor such that the processor can read information from, and write information to, the readable storage medium, which may also be an integral part of the processor, the processor and the readable storage medium may reside in an Application Specific Integrated Circuit (ASIC), and the processor and the readable storage medium may also reside as discrete components in the bridge multipoint synchronous mobile real-time monitoring system.
It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention and are to be construed as being without limitation to such specifically recited embodiments and examples. Those skilled in the art can make various other specific changes and combinations based on the teachings of the present invention without departing from the spirit of the invention, and these changes and combinations are within the scope of the invention.
Claims (10)
1. The bridge multipoint synchronous movement real-time monitoring method is characterized by comprising the following steps:
s1, determining asynchronous movement early warning values of the bridge body displacement control points by carrying out finite element analysis on the stress behaviors of the bridge body in the movement process;
s2, mounting displacement sensors at each displacement control point of the bridge body, and measuring to obtain displacement monitoring data of each displacement control point;
and S3, monitoring and early warning the multipoint synchronous movement of the bridge in real time through the displacement monitoring data and the asynchronous movement early warning value.
2. The bridge multipoint synchronous movement real-time monitoring method according to claim 1, wherein the bridge multipoint synchronous movement comprises transverse movement of the bridge beam body in a direction perpendicular to the axis of the bridge beam body, longitudinal movement of the bridge beam body in the direction perpendicular to the axis of the bridge beam body, and vertical movement of the bridge beam body in a direction perpendicular to the ground.
3. The bridge multipoint synchronous movement real-time monitoring method according to claim 1, wherein the displacement control point is a temporary supporting point in a bridge body synchronous movement process.
4. The bridge multipoint synchronous mobile real-time monitoring method according to claim 1, wherein said step S3 includes the following sub-steps:
s31, automatically acquiring the displacement monitoring data in real time, and transmitting the displacement monitoring data to a server side for display in a wired transmission mode;
s32, selecting one displacement control point as a reference displacement control point at the server end, calculating the displacement difference value of each of the rest displacement control points and the reference displacement control point, and generating an early warning signal when any one displacement difference value exceeds the asynchronous movement early warning value;
and S33, sending the displacement monitoring data and the early warning signal to a client terminal for display.
5. The bridge multipoint synchronous mobile real-time monitoring system is characterized by comprising sensing equipment, data acquisition equipment, data transmission equipment, a server and a client terminal which are sequentially in communication connection;
the sensing equipment comprises a displacement sensor and a displacement sensor, wherein the displacement sensor is used for measuring displacement monitoring data of each displacement control point of the bridge body;
the data acquisition equipment is used for automatically acquiring the displacement monitoring data in real time;
the data transmission equipment is used for transmitting the displacement monitoring data to a server end;
the server end is used for displaying the displacement monitoring data, setting asynchronous movement early warning values of the displacement control points of the bridge body, selecting one displacement control point as a reference displacement control point according to the displacement monitoring data, calculating displacement difference values of the rest displacement control points and the reference displacement control point, generating an early warning signal when any displacement difference value exceeds the asynchronous movement early warning value, and sending the displacement monitoring data and the early warning signal to a client terminal;
and the client terminal is used for displaying the displacement monitoring data and the early warning signal.
6. The bridge multipoint synchronous movement real-time monitoring system according to claim 5, wherein the sensing equipment further comprises a strain sensor, a vibration sensor, a temperature and humidity sensor and an air speed and wind direction sensor.
7. The bridge multipoint synchronous mobile real-time monitoring system according to claim 5, wherein the data acquisition device comprises a power supply module, a master control module and a plurality of channel modules, the power supply module is used for providing adaptive power supplies for the master control module and the channel modules, and each channel module works independently and is controlled by the master control module.
8. The bridge multipoint synchronous mobile real-time monitoring system according to claim 5, wherein said data transmission device comprises an RS-485 bus and a CAN bus fiber.
9. The bridge multipoint synchronous moving real-time monitoring system according to claim 5, wherein the server comprises an intelligent service platform and a monitoring and early warning platform, the intelligent service platform is used for displaying the displacement monitoring data, the monitoring and early warning platform is used for setting asynchronous movement early warning values of bridge beam displacement control points, selecting one displacement control point as a reference displacement control point according to the displacement monitoring data, calculating displacement difference values of each of the rest displacement control points and the reference displacement control point, generating an early warning signal when any one of the displacement difference values exceeds the asynchronous movement early warning value, and sending the displacement monitoring data and the early warning signal to a client terminal.
10. A computer-readable storage medium, in which a computer program is stored, wherein the steps of the bridge multipoint synchronous mobile real-time monitoring method according to any one of claims 1 to 4 are implemented when the computer program is executed.
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