Detection and correction system and method for bridge pier column

Abstract

The invention discloses a detection and correction system and method for a bridge pier stud, and the system comprises a sensor module, a data collection and transmission module, a data processing and analysis module and a correction execution module, and the detection and correction method comprises the steps: starting to collect the inclination, strain and displacement data of the pier stud according to a preset collection frequency; collected data are sent to the data processing center through the data transmission module. In the data processing center, the data is preprocessed, and noise and abnormal values are removed; specific problems of the pier column are determined through data analysis, and a correction scheme is formulated according to an analysis result; and starting a correction execution module according to the formulated correction scheme. The pier stud is continuously and effectively monitored and corrected in time, it is ensured that the pier stud structure is always in a good state, and the risk that traffic is interrupted due to bridge sudden failures caused by the pier stud structure problem is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge construction, and in particular to a detection and correction system and method for bridge piers. Background Art

[0002] As a key component of transportation infrastructure, bridges play a vital role in connecting different regions, promoting economic development and facilitating people's travel. As one of the main load-bearing structures of bridges, the stability and safety of bridge piers are directly related to the safe operation of the entire bridge. With the continuous increase in traffic flow, the continuous increase in vehicle load and the influence of the natural environment, bridge piers are facing various potential risks and challenges.

[0003] Traditional detection methods often rely on manual inspections and simple measuring tools, such as levels and theodolites. These methods are not only inefficient, but also have limited detection accuracy, making it difficult to accurately detect small tilt, strain and displacement changes in piers. For example, for some high-rise bridge piers, when manually measuring the tilt angle using a level, large measurement errors may occur due to the long observation distance and the fact that the line of sight is greatly affected by environmental factors. Although some existing automated detection equipment has improved detection efficiency to a certain extent, it is still insufficient in terms of accuracy. For example, the accuracy of some displacement sensors may only reach the millimeter level, which cannot meet the needs of high-precision detection for some bridge piers that have very strict deformation requirements.

[0004] Therefore, there is an urgent need for a technology to replace the existing sensor detection method for bridges in order to solve the problem of how to improve detection accuracy and improve bridge stability. Summary of the invention

[0005] The embodiment of the present application provides a detection and correction system and method for bridge piers, thereby solving the problems of improving detection accuracy and improving bridge stability in the related art.

[0006] According to one aspect of the embodiment of the present application, a detection and correction system for bridge piers is provided, comprising: a sensor module, a data acquisition module, a data transmission module, a data processing module, a data analysis module and a correction execution module;

[0007] The sensor module is used to monitor the inclination angle, strain and displacement data of the pier column in real time;

[0008] The data acquisition module is used to collect various data acquired by the sensor module;

[0009] The data transmission module is used to transmit the collected data to the data processing module;

[0010] The data processing module is used to preprocess the received data, including data filtering, amplification, and normalization operations;

[0011] The data analysis module is used to deeply analyze the pier-related data after collection and preprocessing, and accurately evaluate the structural state of the pier;

[0012] The data analysis module uses finite element analysis software to establish an accurate finite element model of the pier, inputs the collected and preprocessed data into the finite element model, and sets a safety threshold range X, where X > 0;

[0013] The analyzed safety state data includes tilt angle, strain condition, and displacement data;

[0014] Record the safety state data as Ai, where i = 1, 2, 3;

[0015] The safety state data Ai is the safety value of the i-th data to be analyzed, including: tilt angle A1, strain condition A2, and displacement data A3;

[0016] When Ai < X, it is determined that there are no abnormal problems with the detected bridge pier;

[0017] When Ai ≥ X, it is determined that there are abnormal problems with the detected bridge pier;

[0018] When there are abnormal problems with the bridge pier, calculate the internal force of the bridge pier through Hooke's law. Suppose the calculated internal force of the bridge pier is Δσ and the designed bearing capacity is σ0;

[0019] When Δσ < σ0, the pier has no overload risk;

[0020] When Δσ ≥ σ0, the pier faces an overload risk;

[0021] According to the internal force results and surface characteristics of the bridge pier with abnormal problems analyzed, formulate a correction plan;

[0022] The correction execution module is used to implement specific correction measures for the bridge pier with problems.

[0023] Furthermore, the sensor module includes a tilt sensor, a strain sensor, and a displacement sensor. The sensitive element inside the tilt sensor can sense the change in the angle between the gravity direction and the sensor reference direction and convert it into an electrical signal for output; the strain sensor is used to monitor the strain condition of the pier under the action of factors such as vehicle load, wind load, and temperature change and convert it into an electrical signal for output; the displacement sensor is used to measure the displacement of the pier in the vertical and horizontal directions and convert it into an electrical signal for output.

[0024] Furthermore, the data acquisition module has multiple data acquisition channels, the number and type of these channels match the number and type of sensors, and the priority and sampling order of the acquisition channels are set. The sensor channel with the highest degree of direct correlation with the safety of the bridge pier is usually given the highest priority. The tilt sensor channel is sampled first to obtain the latest tilt data of the pier, and then the displacement sensor and strain sensor channels are sampled in turn.

[0025] Furthermore, the data normalization operation is to convert data of different dimensions and ranges into a unified standard range. The normalization method is maximum-minimum normalization, and its formula is:

[0026]

[0027] Among them, x is the original data;

[0028] x max and x min are the minimum and maximum values ​​in the original data respectively;

[0029] x nex is the new data after normalization;

[0030] This allows data collected by different sensors to be compared and analyzed in the same dimension.

[0031] Furthermore, the data analysis module also uses modal analysis technology to analyze the pier column, and extracts the vibration modal parameters of the pier column by processing the vibration data collected by the displacement sensor, and assumes that the extracted vibration modal parameters of the pier column are ΔV, and the inherent vibration modal parameters of the pier column are V0;

[0032] When ΔV>V0 or ΔV shows obvious abnormality, it can be inferred that the structural integrity of the pier is affected.

[0033] Furthermore, the correction execution module includes a hydraulic jack system, a prestressed tensioning system and a control system.

[0034] Furthermore, the control system is used to monitor multiple key parameters of the pier in real time during the correction process. The control system will compare and analyze the data fed back by the sensor with the preset correction target. When there is a deviation between the monitoring data and the target value, the control system will adjust the working parameters of the correction equipment.

[0035] Furthermore, the hydraulic jack system components include a hydraulic jack, an oil pump, an oil pipe and a control valve; when an instruction to correct the tilt or displacement is received, the oil pump starts to transport the hydraulic oil through the oil pipe to the oil cylinder of the hydraulic jack, and the pressure of the hydraulic oil will push the piston of the jack upward, thereby applying a vertical upward force to the pier column. The control system can accurately adjust the flow and pressure of the hydraulic oil by controlling the control valve, thereby controlling the lifting speed and lifting force of the jack; when the pier column tilts to one side, the jack can be placed at the bottom on the other side of the tilt direction, and the tilt of the pier column can be corrected by controlling the lifting of the jack.

[0036] Furthermore, the prestressed tensioning system components include tensioning jacks, oil pumps, prestressed tendons and anchors; when an instruction to correct the deformation of concrete is received, the oil pump is started to cause the tensioning jacks to apply tension to the prestressed tendons, and the elongation of the prestressed tendons is proportional to the applied tension. The control system accurately controls the tension of the tensioning jacks to cause the prestressed tendons to produce a certain elongation, thereby applying pre-compression stress to the pier to correct the deformation of the pier.

[0037] The present application embodiment provides another detection and correction method for bridge piers, comprising the following steps:

[0038] A100: Start various sensors installed on bridge piers to monitor relevant physical quantities of the piers in real time, ensuring that the sensors are in a stable working state during the monitoring process and are not excessively disturbed by external factors;

[0039] A200: Set reasonable data collection frequency and other relevant collection parameters based on factors such as the importance of the bridge, the environment in which it is located, and the structural characteristics of the piers;

[0040] A300: The data processing center pre-processes the received data, including filtering, amplification, and normalization operations;

[0041] A400: Use professional structural analysis software and algorithms to analyze the processed data. By building a finite element model of the bridge pier, input the measured strain, displacement and tilt data into the model, compare and analyze with the theoretical model, and design a correction plan;

[0042] A500: Start the corresponding equipment in the calibration execution module according to the formulated calibration plan;

[0043] A600: During the calibration process, the control system monitors multiple key parameters of the pier in real time. The control system compares and analyzes the data fed back by the sensors with the preset calibration targets. When there is a deviation between the monitoring data and the target value, the control system adjusts the working parameters of the calibration equipment.

[0044] Compared with the prior art, the beneficial effects of this application are:

[0045] 1. The sensor module monitors the inclination angle, strain and displacement data of the pier column in real time, and comprehensively reflects the status of the pier column from multiple angles. Compared with the traditional single detection method, it can more accurately capture the changes of the pier column under different conditions and discover potential problems in time.

[0046] 2. Develop personalized correction plans based on the analysis of the internal force results and surface characteristics of bridge piers with abnormal problems. Different pier problems may require different correction measures. The system can develop the most appropriate plan for specific problems and improve the correction effect.

[0047] The technical solution of the present application is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0049] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0050] Figure 1 This is a structural block diagram of a detection and correction system for bridge piers proposed in this application;

[0051] Figure 2 This is a flow chart of a detection and correction method for bridge piers proposed in this application. DETAILED DESCRIPTION

[0052] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0053] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0054] The following description of at least one exemplary embodiment is merely illustrative in nature and is not intended to limit the present application, its application, or uses.

[0055] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0056] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0057] In addition, the technical solutions between the various embodiments of the present application can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0058] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0059] Combine the following Figure 1 To describe a detection and correction system for bridge piers according to an exemplary embodiment of the present application. It should be noted that the following application scenarios are only shown to facilitate understanding of the spirit and principles of the present application, and the embodiments of the present application are not limited in this regard. On the contrary, the embodiments of the present application can be applied to any applicable scenario.

[0060] According to one aspect of the embodiment of the present application, a detection and correction system for bridge piers is provided, comprising: a sensor module, a data acquisition module, a data transmission module, a data processing module, a data analysis module and a correction execution module;

[0061] The sensor module is used to monitor the pier column inclination angle, strain and displacement data in real time;

[0062] The data acquisition module is used to collect various data obtained by the sensor module;

[0063] The data transmission module is used to transmit the collected data to the data processing module;

[0064] The data processing module is used to pre-process the received data, including data filtering, amplification and normalization operations;

[0065] The data analysis module is used to conduct in-depth analysis on the collected and pre-processed pier-related data and accurately evaluate the structural status of the pier;

[0066] The data analysis module uses finite element analysis software to establish an accurate finite element model of the pier column, inputs the collected and pre-processed data into the finite element model, and sets the safety threshold range X, X>0;

[0067] Analyzing safety status data includes tilt angle, strain condition, and displacement data;

[0068] Denote the safety status data as Ai, where i = 1, 2, 3;

[0069] The safety status data Ai is the safety value of the i-th data to be analyzed, including: tilt angle A1, strain condition A2, and displacement data A3;

[0070] When Ai < X, it is determined that there are no abnormal problems with the detected bridge pier;

[0071] When Ai ≥ X, it is determined that there are abnormal problems with the detected bridge pier;

[0072] When there are abnormal problems with the bridge pier, calculate the internal force of the bridge pier through Hooke's law. Suppose the calculated internal force of the bridge pier is Δσ and the design bearing capacity is σ0;

[0073] When Δσ < σ0, the pier has no overload risk;

[0074] When Δσ ≥ σ0, the pier faces an overload risk;

[0075] Based on the internal force results and surface characteristics of the bridge pier with abnormal problems analyzed, formulate a correction plan;

[0076] The correction execution module is used to implement specific correction measures for the bridge piers with problems.

[0077] Specifically, the data processing module performs preprocessing operations on the received data, including filtering, amplification, and normalization. Remove noise interference in the data through filtering, improve the signal strength of the data through amplification, and convert data with different dimensions to a unified standard range through normalization, facilitating subsequent analysis and comparison.

[0078] The data analysis module uses finite element analysis software to establish an accurate finite element model of the pier and inputs the collected and preprocessed data into the model for analysis. According to the set safety threshold range X, determine whether there are abnormal problems with the pier. If there are abnormal problems, calculate the internal force of the pier through Hooke's law and compare it with the design bearing capacity to determine whether the pier faces an overload risk.

[0079] Specifically, according to the results of data analysis, a correction plan for bridge piers with abnormal problems is formulated. The correction plan should comprehensively consider the internal force results, surface characteristics and actual conditions of the piers, and select appropriate correction measures. During the correction process, the state changes of the piers should be monitored in real time to ensure the safety and effectiveness of the correction process. For example, when using hydraulic jacks for correction, the size and speed of the lifting force should be controlled to avoid secondary damage to the piers; when using prestressed tensioning for correction, the tensioning stress and elongation should be strictly controlled to ensure that the correction effect meets the requirements.

[0080] It can be understood that the system can automatically determine whether there are abnormal problems with the piers and issue early warnings in a timely manner, which improves the timeliness and reliability of detection. The correction execution module can implement specific correction measures on bridge piers with problems to ensure the structural safety and stability of the piers.

[0081] Specifically, the sensor module includes a tilt sensor, a strain sensor and a displacement sensor. The sensitive element inside the tilt sensor can sense the change in the angle between the gravity direction and the sensor reference direction, and convert it into an electrical signal output; the strain sensor is used to monitor the strain of the pier under the influence of vehicle load, wind load, and temperature change, and convert it into an electrical signal output; the displacement sensor is used to measure the displacement of the pier in the vertical and horizontal directions, and convert it into an electrical signal output.

[0082] It is understandable that the sensor module monitors the inclination angle, strain and displacement data of the pier column in real time, which can fully reflect the status of the pier column from multiple angles. Compared with the traditional single detection method, it can more accurately capture the changes of the pier column under different conditions.

[0083] Specifically, the data acquisition module has multiple data acquisition channels, the number and type of these channels match the number and type of sensors, and the priority and sampling order of the acquisition channels are set. The sensor channel with the highest degree of direct correlation with the safety of the bridge piers is usually given the highest priority. The tilt sensor channel is sampled first to obtain the latest tilt data of the pier, and then the displacement sensor and strain sensor channels are sampled in turn.

[0084] Specifically, the tilt sensor channel is sampled to obtain the latest tilt data of the pier column. Then the displacement sensor and strain sensor channels are sampled in turn. This ensures that the most important data can be obtained first in each acquisition cycle, and when resources are limited, the acquisition of key data is prioritized.

[0085] It is understandable that giving the highest priority to the sensor channel that is most directly related to the safety of the bridge pier and sampling it first can ensure that the most critical data, that is, the tilt data of the pier, is obtained in the first place. The tilt of the pier directly reflects the stability of its structure. Once a large tilt occurs, it may quickly endanger the overall safety of the bridge. By giving priority to collecting tilt data, the key status information of the pier can be grasped in the shortest time, providing a basis for subsequent instant analysis and possible emergency treatment.

[0086] Specifically, the data normalization operation is to convert data of different dimensions and ranges into a unified standard range. The normalization method is maximum-minimum normalization, and its formula is

[0087]

[0088] Among them, x is the original data;

[0089] x max and x min are the minimum and maximum values ​​in the original data respectively;

[0090] x nex is the new data after normalization;

[0091] This allows data collected by different sensors to be compared and analyzed in the same dimension.

[0092] Specifically, the data analysis module also uses modal analysis technology to analyze the pier column, and extracts the vibration modal parameters of the pier column by processing the vibration data collected by the displacement sensor. The extracted vibration modal parameters of the pier column are set as ΔV, and the inherent vibration modal parameters of the pier column are set as V0;

[0093] When ΔV>V0 or ΔV shows obvious abnormality, it can be inferred that the structural integrity of the pier is affected.

[0094] It is understood that the vibration modal parameters can reflect the overall structural characteristics of the pier, including stiffness and mass distribution. Compared with single tilt, strain or displacement data, modal analysis provides a more comprehensive perspective to evaluate the structural integrity of the pier. By analyzing multiple vibration modal parameters, the vibration characteristics of the pier in different directions and the overall dynamic response of the structure can be understood.

[0095] Specifically, the correction execution module includes a hydraulic jack system, a prestressing tensioning system and a control system.

[0096] Specifically, the control system is used to monitor multiple key parameters of the pier in real time during the correction process. The control system will compare and analyze the data fed back by the sensors with the preset correction targets. When there is a deviation between the monitoring data and the target value, the control system will adjust the working parameters of the correction equipment.

[0097] Specifically, the components of the hydraulic jack system include a hydraulic jack, an oil pump, an oil pipe and a control valve; when an instruction to correct tilt or displacement is received, the oil pump starts and transports the hydraulic oil through the oil pipe to the oil cylinder of the hydraulic jack. The pressure of the hydraulic oil will push the piston of the jack upward, thereby exerting a vertical upward force on the pier column. The control system can accurately adjust the flow and pressure of the hydraulic oil by controlling the control valve, thereby controlling the lifting speed and lifting force of the jack; when the pier column tilts to one side, the jack can be placed at the bottom on the other side of the tilt direction, and the tilt of the pier column can be corrected by controlling the lifting of the jack.

[0098] Specifically, the components of the prestressed tensioning system include tensioning jacks, oil pumps, prestressed tendons and anchors. When receiving an instruction to correct the deformation of the concrete, the oil pump is started to cause the tensioning jacks to apply tension to the prestressed tendons. The elongation of the prestressed tendons is proportional to the applied tension. The control system precisely controls the tension of the tensioning jacks to cause the prestressed tendons to elongate to a certain extent, thereby applying pre-compression stress to the pier column to correct the deformation of the pier column.

[0099] It is understandable that the correction execution module includes different correction methods such as hydraulic jack system and prestressed tensioning system, which can implement specific and targeted correction measures for different types of problems that occur in bridge piers. For example, for the problem of pier tilt or displacement caused by external forces and other factors, the hydraulic jack system can be used for jacking correction; and for the deformation of piers caused by concrete shrinkage, creep or prestress loss, the prestress can be applied by the prestressed tensioning system. This diversified correction method can more effectively solve the structural anomalies of piers under various working conditions and ensure that the pier structure returns to normal.

[0100] Specifically, a control system is equipped to monitor and control the correction process in real time to ensure the accuracy and effectiveness of the correction execution process. By comparing and analyzing the data fed back by the sensor with the preset correction target, and adjusting the working parameters of the correction equipment in time according to the deviation, the correction operation can accurately achieve the expected effect. For example, during the hydraulic jacking correction, the lifting speed and lifting force can be accurately controlled to avoid affecting the structural stability of the pier due to excessive or insufficient correction; in the prestressed tensioning correction, the tensioning stress and elongation are strictly controlled to ensure that the prestress applied to the pier meets the requirements, thereby effectively correcting the deformation of the pier and improving the quality and accuracy of the correction.

[0101] Combination Figure 2 Another detection and correction method for bridge piers is described according to an embodiment of the present application, comprising the following steps:

[0102] S100: Start various sensors installed on the bridge piers to enable them to monitor relevant physical quantities of the piers in real time, ensuring that the sensors are in a stable working state during the monitoring process and are not excessively disturbed by external factors;

[0103] S200: Set reasonable data collection frequency and other relevant collection parameters according to factors such as the importance of the bridge, the environment in which it is located, and the structural characteristics of the piers;

[0104] S300: The data processing center pre-processes the received data, including filtering, amplification, normalization and other operations;

[0105] S400: Use professional structural analysis software and algorithms to analyze the processed data. By building a finite element model of the bridge pier, the measured strain, displacement and tilt data are input into the model, compared with the theoretical model, and a correction plan is designed;

[0106] S500: according to the formulated correction scheme, start the corresponding equipment in the correction execution module;

[0107] S600: During the calibration process, the control system monitors multiple key parameters of the pier in real time. The control system compares and analyzes the data fed back by the sensors with the preset calibration targets. When there is a deviation between the monitoring data and the target value, the control system adjusts the working parameters of the calibration equipment.

[0108] It is understandable that the above-mentioned image-based appearance assessment method and system for bridge pier detection have the same beneficial effects, which will not be described in detail here.

[0109] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0110] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A detection and correction system for bridge piers, characterized in that: Including: A sensor module, a data acquisition module, a data transmission module, a data processing module, a data analysis module, and a correction execution module; The sensor module is used to monitor the inclination angle, strain condition, and displacement data of the pier column in real time; The data acquisition module is used to collect various data obtained by the sensor module; The data transmission module is used to transmit the collected data to the data processing module; The data processing module is used to preprocess the received data, including operations such as data filtering, amplification, and normalization; The data analysis module is used to deeply analyze the pier column-related data after acquisition and preprocessing, and accurately evaluate the structural state of the pier column; The data analysis module uses finite element analysis software to establish an accurate finite element model of the pier column, inputs the acquired and preprocessed data into the finite element model, and sets a safety threshold range X, where X > 0; Analyze the safety state data including the inclination angle, strain condition, and displacement data; Record the safety state data as Ai, where i = 1, 2, 3; The safety state data Ai is the safety value of the i-th data to be analyzed, including: inclination angle A1, strain condition A2, displacement data A3; When Ai < X, it is determined that there are no abnormal problems with the detected bridge pier column; When Ai ≥ X, it is determined that there are abnormal problems with the detected bridge pier column; When there are abnormal problems with the bridge pier column, calculate the internal force of the bridge pier column through Hooke's law. Suppose the calculated internal force of the bridge pier column is Δσ and the design bearing capacity is σ0; When Δσ < σ0, the pier column has no overload risk; When Δσ ≥ σ0, the pier column faces an overload risk; According to the internal force results and surface characteristics of the bridge pier column with analyzed abnormal problems, formulate a correction plan; The correction execution module is used to implement specific correction measures for the bridge pier column with problems.

2. The detection and correction system for bridge pier columns according to claim 1, characterized in that The sensor module includes an inclination sensor, a strain sensor, and a displacement sensor. The sensitive element inside the inclination sensor can sense the change in the angle between the gravity direction and the sensor reference direction and convert it into an electrical signal for output; the strain sensor is used to monitor the strain condition of the pier column under the action of factors such as vehicle load, wind load, and temperature change and convert it into an electrical signal for output; the displacement sensor is used to measure the displacement of the pier column in the vertical and horizontal directions and convert it into an electrical signal for output.

3. The detection and correction system for bridge pier columns according to claim 1, characterized in that The data acquisition module has multiple data acquisition channels. The number and type of these channels match the number and type of sensors. Set the priority and sampling order of the acquisition channels. Usually, the sensor channel with the highest direct correlation with the safety of the bridge pier column is given the highest priority. First, sample the inclination sensor channel to obtain the latest inclination data of the pier column, and then sequentially sample the displacement sensor and strain sensor channels.

4. The detection and correction system for bridge pier columns according to claim 1, characterized in that The data normalization operation is to convert data of different dimensions and ranges into a unified standard range. The normalization method is maximum-minimum normalization, and its formula is: Among them, x is the original data; x max and x min are the minimum and maximum values ​​in the original data respectively; x new is the new data after normalization.

5. The bridge pier detection and correction system according to claim 1, characterized in that: The data analysis module also uses modal analysis technology to analyze the pier column, and extracts the vibration modal parameters of the pier column by processing the vibration data collected by the displacement sensor, and assumes that the extracted vibration modal parameters of the pier column are ΔV, and the inherent vibration modal parameters of the pier column are V0; When ΔV>V0 and ΔV is obviously abnormal, the structural integrity of the pier is affected.

6. The bridge pier detection and correction system according to claim 1, characterized in that: The correction execution module includes a hydraulic jack system, a prestressed tensioning system and a control system.

7. The bridge pier detection and correction system according to claim 6, characterized in that: The control system is used to monitor multiple key parameters of the pier in real time during the correction process. The control system will compare and analyze the data fed back by the sensor with the preset correction target. When there is a deviation between the monitoring data and the target value, the control system will adjust the working parameters of the correction equipment.

8. The bridge pier detection and correction system according to claim 6, characterized in that: The hydraulic jack system components include a hydraulic jack, an oil pump, an oil pipe and a control valve; when an instruction to correct the tilt or displacement is received, the oil pump starts to transport the hydraulic oil through the oil pipe to the oil cylinder of the hydraulic jack, and the pressure of the hydraulic oil will push the piston of the jack upward, thereby applying a vertical upward force to the pier column. The control system can accurately adjust the flow and pressure of the hydraulic oil by controlling the control valve, thereby controlling the lifting speed and lifting force of the jack; when the pier column tilts to one side, the jack can be placed at the bottom on the other side of the tilt direction, and the tilt of the pier column can be corrected by controlling the lifting of the jack.

9. The bridge pier detection and correction system according to claim 6, characterized in that: The prestressed tensioning system components include tensioning jacks, oil pumps, prestressed tendons and anchors; when an instruction to correct the deformation of concrete is received, the oil pump is started to cause the tensioning jacks to apply tension to the prestressed tendons, and the elongation of the prestressed tendons is proportional to the applied tension. The control system accurately controls the tension of the tensioning jacks to cause the prestressed tendons to produce a certain elongation, thereby applying pre-compression stress to the pier column to correct the deformation of the pier column.

10. A method for detecting and correcting bridge piers, characterized in that: The following steps are involved: A100: Start various sensors installed on bridge piers to monitor relevant physical quantities of the piers in real time, ensuring that the sensors are in a stable working state during the monitoring process and are not excessively disturbed by external factors; A200: Set reasonable data collection frequency and other relevant collection parameters based on factors such as the importance of the bridge, the environment in which it is located, and the structural characteristics of the piers; A300: The data processing center pre-processes the received data, including filtering, amplification, and normalization operations; A400: Use professional structural analysis software and algorithms to analyze the processed data. By building a finite element model of the bridge pier, input the measured strain, displacement and tilt data into the model, compare and analyze with the theoretical model, and design a correction plan; A500: Start the corresponding equipment in the calibration execution module according to the formulated calibration plan; A600: During the calibration process, the control system monitors multiple key parameters of the pier in real time. The control system compares and analyzes the data fed back by the sensors with the preset calibration targets. When there is a deviation between the monitoring data and the target value, the control system adjusts the working parameters of the calibration equipment.

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