Detection, analysis and supervision method for bridge safety

Abstract

The invention relates to the technical field of bridge safety detection, analysis and supervision, and discloses a bridge safety detection, analysis and supervision method. If inspection unit personnel discover equipment abnormity for a bridge, the inspection unit personnel can start the bridge safety detection, analysis and supervision unit through the power supply template, and accurately measure three-dimensional coordinates of the surface of the bridge through the bridge safety scanning unit by utilizing a laser radar technology and emitting laser pulses and receiving reflected signals of the laser pulses. Meanwhile, the data collection layer module collects physical quantities such as basic information, structural parameters, operation states and environmental factors of the bridge in real time through a plurality of sensors such as a stress sensor, a displacement sensor, a vibration sensor and a temperature sensor; and the data dynamic and static analysis module is used for efficiently and accurately transmitting collected real-time or regular data such as bridge structure state, environment change and traffic flow to the data analysis unit in a wired or wireless manner.

Description

Technical Field

[0001] The present invention relates to the technical field of detection, analysis and supervision of bridge safety, and in particular to a detection, analysis and supervision method for bridge safety. Background Art

[0002] At present, bridge management is mostly implemented by traditional means and methods. Traditional methods have great individual differences, which makes it difficult to standardize bridge management. A bridge safety detection, analysis and supervision method is a comprehensive process aimed at ensuring the safety and durability of bridge structures.

[0003] Compared with existing technologies, it is impossible to detect damage, cracks, corrosion and other problems of bridge structures in a timely manner. These problems may gradually worsen and eventually lead to the sudden collapse or failure of the bridge, posing a serious safety threat to passing vehicles and pedestrians. In the absence of effective detection, analysis and supervision, bridge maintenance can often only rely on passive response, that is, repairs are carried out only after problems occur. This method is not only inefficient, but also costly to repair, because large-scale repairs or even reconstruction may be required at this time.

[0004] Therefore, a detection, analysis and supervision method for bridge safety is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a method for detecting, analyzing and supervising bridge safety to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A method for detecting, analyzing and supervising bridge safety comprises the following steps;

[0007] Step 1: If the inspection unit personnel find any abnormality in the bridge equipment, they can start the bridge safety detection and analysis supervision unit through the power supply template, and use the laser radar technology through the bridge safety scanning unit to accurately measure the three-dimensional coordinates of the bridge surface by emitting laser pulses and receiving their reflected signals, and capture the geometric shape and structural details of the bridge. At the same time, the data collection layer module uses stress sensors, displacement sensors, vibration sensors, temperature sensors and other sensors to collect the basic information, structural parameters, operating status and environmental factors of the bridge in real time. The physical quantities, such as the collected real-time or regular data on the bridge structure status, environmental changes, traffic flow, etc., are efficiently and accurately transmitted to the data dynamic and static analysis module of the data analysis unit through wired or wireless methods;

[0008] Step 2: The real-time or periodic data collected, such as the bridge structure status, environmental changes, and traffic flow, are efficiently and accurately transmitted to the data dynamic and static analysis module of the data analysis unit through wired or wireless means. First, the geometric dimensions, material properties, cross-sectional properties and other structural parameters of the bridge are statically analyzed to understand the basic structure and physical properties of the bridge. Then, the dynamic response of the bridge under the action of external factors (such as vehicle load, wind load, temperature change) such as vibration and displacement is monitored in real time through the installed high-precision sensors (such as acceleration sensors and vibration sensors). These dynamic monitoring data are processed and analyzed, and the dynamic characteristic parameters of the bridge (such as vibration frequency, damping ratio, vibration mode) are calculated to perform dynamic analysis.

[0009] Step three: By entering the corresponding data and related information and passing it to the evaluation unit, the bridge information entry module records in detail the key information of the bridge, such as the structural type, span layout, main materials, design load, etc., to provide basic data for subsequent evaluation. The bridge information comparison module compares the measured data of the bridge with the theoretical calculated value, evaluates the degree of compliance between the actual performance of the bridge and the design expectations, identifies possible deviations or problems, and comprehensively evaluates the structural safety, durability, stability and ability to cope with various loads and environmental factors of the bridge based on the static analysis, dynamic analysis results and bridge information comparison results of the bridge. According to the evaluation results, potential safety hazards can be discovered in time, providing a scientific basis for the maintenance, reinforcement or renovation of the bridge.

[0010] Preferably, the bridge safety scanning unit involved in step 1 comprises a scanning layer module, which uses a laser radar to measure the distance and shape of the target object by emitting laser pulses and receiving their reflected signals;

[0011] Laser scanning technology can obtain the precise three-dimensional coordinates of the bridge surface, which is more accurate than traditional measurement methods and helps to detect minor structural changes or damage.

[0012] Preferably, the data collection layer module collects the basic information, structural parameters, operating status, and environmental factors of the bridge by utilizing stress sensors, displacement sensors, vibration sensors, temperature sensors, etc., so as to capture the changes of various physical quantities of the bridge in real time.

[0013] Preferably, the data analysis unit involved in step 2 includes a data transmission module, which is connected to the data collection layer module, and the collected real-time or periodic data such as bridge structure status, environmental changes, traffic flow, etc. are transmitted to the data dynamic and static analysis module via wired or wireless means.

[0014] Preferably, the data dynamic and static analysis module, as an important component of the system, undertakes the key task of data analysis. The data dynamic and static analysis module measures and analyzes structural parameters such as geometric dimensions, material properties, and cross-sectional properties of the bridge to understand the basic structure and physical properties of the bridge and make a static analysis.

[0015] The data dynamic and static analysis module installs high-precision sensors such as accelerometers and vibration sensors to monitor the dynamic responses of the bridge such as vibration and displacement under the influence of external factors such as vehicle load, wind load, and temperature change in real time. The dynamic monitoring data is processed and analyzed, and the dynamic characteristic parameters such as the vibration frequency, damping ratio, and vibration mode of the bridge are calculated to perform dynamic analysis.

[0016] Preferably, the evaluation unit involved in the step three includes a bridge information entry module, which is communicatively connected to the data dynamic and static analysis module, and records in detail the structural type of the bridge (such as beam bridge, arch bridge, cable-stayed bridge, suspension bridge, etc.), span arrangement, main materials (such as steel, concrete, etc.), design load, etc., which are of great significance for understanding the mechanical properties of the bridge and evaluating its bearing capacity.

[0017] Preferably, the bridge information comparison module compares the measured data of the bridge with the theoretical calculated values ​​to evaluate the degree of compliance between the actual performance of the bridge and the design expectations. If there is a large deviation between the measured data and the theoretical calculated values, the design or construction of the bridge may need to be reviewed and inspected.

[0018] Preferably, the bridge safety assessment module is intended to comprehensively assess the structural safety, durability, stability and ability of the bridge to cope with various loads and environmental factors.

[0019] Compared with the prior art, the invention has the following beneficial effects: the detection, analysis and supervision method for bridge safety is

[0020] (1) If the inspection unit finds any abnormality in the bridge equipment, the bridge safety detection and analysis supervision unit can be started through the power supply template. The bridge safety scanning unit uses laser radar technology to accurately measure the three-dimensional coordinates of the bridge surface by emitting laser pulses and receiving their reflected signals, capturing the geometric shape and structural details of the bridge. At the same time, the data collection layer module uses stress sensors, displacement sensors, vibration sensors, temperature sensors and other sensors to collect basic information, structural parameters, operating status, environmental factors and other physical quantities of the bridge in real time. The collected real-time or periodic data such as the bridge structure status, environmental changes, traffic flow, etc. are efficiently and accurately transmitted to the data dynamic and static analysis module of the data analysis unit through wired or wireless methods, thereby ensuring the accuracy of the scan.

[0021] (2) The real-time or periodic data collected, such as the structural status of the bridge, environmental changes, and traffic flow, are efficiently and accurately transmitted to the data dynamic and static analysis module of the data analysis unit through wired or wireless means. First, the geometric dimensions, material properties, cross-sectional properties and other structural parameters of the bridge are statically analyzed to understand the basic structure and physical properties of the bridge. Then, the dynamic response of the bridge under the influence of external factors (such as vehicle loads, wind loads, and temperature changes), such as vibration and displacement, is monitored in real time through the installed high-precision sensors (such as accelerometers and vibration sensors). These dynamic monitoring data are processed and analyzed, and the dynamic characteristic parameters of the bridge (such as vibration frequency, damping ratio, and vibration mode) are calculated. Dynamic analysis is then performed to improve the efficiency and accuracy of data processing and analysis.

[0022] (3) By entering the corresponding data and related information and passing it to the evaluation unit, the bridge information entry module records in detail the key information of the bridge, such as the structural type, span arrangement, main materials, and design load, to provide basic data for subsequent evaluation. The bridge information comparison module compares the measured data of the bridge with the theoretical calculated value, evaluates the degree of conformity between the actual performance of the bridge and the design expectations, identifies possible deviations or problems, and comprehensively evaluates the structural safety, durability, stability, and ability to cope with various loads and environmental factors of the bridge based on the static analysis and dynamic analysis results of the bridge and the bridge information comparison results. Based on the evaluation results, potential safety hazards can be discovered in a timely manner, providing a scientific basis for the maintenance, reinforcement or renovation of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional schematic diagram of the detection, analysis and supervision structure of the bridge safety of the present invention;

[0024] Figure 2 It is a three-dimensional schematic diagram of the structure of the bridge safety scanning unit of the present invention;

[0025] Figure 3 It is a three-dimensional schematic diagram of the data analysis structure of the present invention;

[0026] Figure 4 It is a three-dimensional schematic diagram of the evaluation unit structure of the present invention. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1:

[0029] See also Figure 1-Figure 4 ,The present invention provides a technical solution: a method for detecting, analyzing and supervising bridge safety, comprising the following steps;

[0030] Step 1: If the inspection unit personnel find any abnormality in the bridge equipment, they can start the bridge safety detection and analysis supervision unit through the power supply template, and use the laser radar technology through the bridge safety scanning unit to accurately measure the three-dimensional coordinates of the bridge surface by emitting laser pulses and receiving their reflected signals, and capture the geometric shape and structural details of the bridge. At the same time, the data collection layer module uses stress sensors, displacement sensors, vibration sensors, temperature sensors and other sensors to collect the basic information, structural parameters, operating status and environmental factors of the bridge in real time. The physical quantities, such as the collected real-time or regular data on the bridge structure status, environmental changes, traffic flow, etc. are efficiently and accurately transmitted to the data dynamic and static analysis module of the data analysis unit through wired or wireless methods;

[0031] Step 2: The real-time or periodic data collected, such as the bridge structure status, environmental changes, and traffic flow, are efficiently and accurately transmitted to the data dynamic and static analysis module of the data analysis unit through wired or wireless means. First, the geometric dimensions, material properties, cross-sectional properties and other structural parameters of the bridge are statically analyzed to understand the basic structure and physical properties of the bridge. Then, the dynamic response of the bridge under the action of external factors (such as vehicle load, wind load, and temperature change) such as vibration and displacement is monitored in real time through the installed high-precision sensors (such as accelerometers and vibration sensors). These dynamic monitoring data are processed and analyzed, and the dynamic characteristic parameters of the bridge (such as vibration frequency, damping ratio, and vibration mode) are calculated to perform dynamic analysis.

[0032] Step three: By entering the corresponding data and related information and passing it to the evaluation unit, the bridge information entry module records in detail the key information of the bridge, such as the structural type, span layout, main materials, design load, etc., to provide basic data for subsequent evaluation. The bridge information comparison module compares the measured data of the bridge with the theoretical calculated value, evaluates the degree of compliance between the actual performance of the bridge and the design expectations, identifies possible deviations or problems, and comprehensively evaluates the structural safety, durability, stability and ability to cope with various loads and environmental factors of the bridge based on the static analysis, dynamic analysis results and bridge information comparison results of the bridge. According to the evaluation results, potential safety hazards can be discovered in time, providing a scientific basis for the maintenance, reinforcement or renovation of the bridge.

[0033] The bridge safety scanning unit involved in step 1 includes a scanning layer module, which uses a laser radar to measure the distance and shape of the target object by emitting laser pulses and receiving their reflected signals;

[0034] Laser scanning technology can obtain the precise three-dimensional coordinates of the bridge surface, which is more accurate than traditional measurement methods and helps to detect minor structural changes or damage.

[0035] The data collection layer module collects the basic information, structural parameters, operating status, and environmental factors of the bridge by utilizing stress sensors, displacement sensors, vibration sensors, temperature sensors, etc., so as to capture the changes of various physical quantities of the bridge in real time.

[0036] The data analysis unit involved in step 2 includes a data transmission module, which is connected to the data collection layer module. The collected real-time or periodic data such as bridge structure status, environmental changes, traffic flow, etc. are transmitted to the data dynamic and static analysis module via wired or wireless means.

[0037] The data dynamic and static analysis module, as an important part of the system, undertakes the key task of data analysis. The data dynamic and static analysis module measures and analyzes the structural parameters of the bridge, such as geometric dimensions, material properties, and cross-sectional properties, to understand the basic structure and physical properties of the bridge and make a static analysis.

[0038] The data dynamic and static analysis module installs high-precision sensors such as accelerometers and vibration sensors to monitor the dynamic responses of the bridge such as vibration and displacement under the influence of external factors such as vehicle load, wind load, and temperature change in real time. The dynamic monitoring data is processed and analyzed, and the dynamic characteristic parameters such as the vibration frequency, damping ratio, and vibration mode of the bridge are calculated to perform dynamic analysis.

[0039] The evaluation unit involved in the step three includes a bridge information entry module, which is communicated with the data dynamic and static analysis module to record in detail the structural type of the bridge (such as beam bridge, arch bridge, cable-stayed bridge, suspension bridge, etc.), span arrangement, main materials (such as steel, concrete, etc.), design load, etc., which are of great significance for understanding the mechanical properties of the bridge and evaluating its bearing capacity.

[0040] The bridge information comparison module compares the measured data of the bridge with the theoretical calculated values, and can evaluate the degree of conformity between the actual performance of the bridge and the design expectations. If there is a large deviation between the measured data and the theoretical calculated values, the design or construction of the bridge may need to be reviewed and inspected.

[0041] The bridge safety assessment module is designed to comprehensively assess the structural safety, durability, stability and ability of a bridge to cope with various loads and environmental factors.

[0042] The bridge safety scanning unit uses lidar technology to accurately measure the three-dimensional coordinates of the bridge surface. Compared with traditional measurement methods, it has higher accuracy and can detect tiny structural changes or damage, improving the accuracy and reliability of detection. Through stress sensors, displacement sensors, vibration sensors, temperature sensors and other sensors, various physical quantity data of the bridge are collected in real time, including structural status, environmental changes, traffic flow, etc., to ensure the real-time and comprehensiveness of the data.

[0043] The data analysis unit uses wired or wireless methods to efficiently and accurately transmit data to ensure that the data can reach the data analysis unit in a timely manner, providing a basis for rapid analysis and evaluation. The data dynamic and static analysis module performs static analysis on the geometric dimensions, material properties, cross-sectional properties and other structural parameters of the bridge. At the same time, it monitors the dynamic response of the bridge under the influence of external factors in real time, calculates the dynamic characteristic parameters, and realizes a comprehensive analysis of the bridge.

[0044] The bridge information entry module of the evaluation unit records the key information of the bridge in detail. The bridge information comparison module compares the measured data with the theoretical calculated value to evaluate the degree of compliance between the actual performance of the bridge and the design expectations, and promptly discovers potential safety hazards, providing a scientific basis for the maintenance, reinforcement or renovation of the bridge, and may notify relevant personnel in advance through the early warning system.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bridge analysis and supervision method for bridge safety, characterized by: The following steps are involved: Step 1: If the inspection unit personnel find any abnormality in the bridge equipment, they can start the bridge safety detection and analysis supervision unit through the power supply template, and use the laser radar technology through the bridge safety scanning unit to accurately measure the three-dimensional coordinates of the bridge surface by emitting laser pulses and receiving their reflected signals, and capture the geometric shape and structural details of the bridge. At the same time, the data collection layer module uses stress sensors, displacement sensors, vibration sensors, temperature sensors and other sensors to collect the basic information, structural parameters, operating status and environmental factors of the bridge in real time. The physical quantities such as environmental factors, etc. are efficiently and accurately transmitted to the data dynamic and static analysis module of the data analysis unit through wired or wireless methods. Step 2: The real-time or periodic data collected, such as the bridge structure status, environmental changes, and traffic flow, are efficiently and accurately transmitted to the data dynamic and static analysis module of the data analysis unit through wired or wireless means. First, the geometric dimensions, material properties, cross-sectional properties and other structural parameters of the bridge are statically analyzed to understand the basic structure and physical properties of the bridge. Then, the dynamic response of the bridge under the action of external factors (such as vehicle load, wind load, temperature change) such as vibration and displacement is monitored in real time through the installed high-precision sensors (such as acceleration sensors and vibration sensors). These dynamic monitoring data are processed and analyzed, and the dynamic characteristic parameters of the bridge (such as vibration frequency, damping ratio, vibration mode) are calculated to perform dynamic analysis. Step three: By entering the corresponding data and related information and passing it to the evaluation unit, the bridge information entry module records in detail the key information of the bridge, such as the structural type, span layout, main materials, design load, etc., to provide basic data for subsequent evaluation. The bridge information comparison module compares the measured data of the bridge with the theoretical calculated value, evaluates the degree of compliance between the actual performance of the bridge and the design expectations, identifies possible deviations or problems, and comprehensively evaluates the structural safety, durability, stability and ability to cope with various loads and environmental factors of the bridge based on the static analysis, dynamic analysis results and bridge information comparison results of the bridge. According to the evaluation results, potential safety hazards can be discovered in time, providing a scientific basis for the maintenance, reinforcement or renovation of the bridge.

2. A bridge safety detection, analysis and supervision method according to claim 1, characterized in that: The bridge safety scanning unit involved in step 1 includes a scanning layer module, which uses a laser radar to measure the distance and shape of the target object by emitting laser pulses and receiving their reflected signals; Laser scanning technology can obtain the precise three-dimensional coordinates of the bridge surface, which is more accurate than traditional measurement methods and helps to detect minor structural changes or damage.

3. A bridge safety detection, analysis and supervision method according to claim 1, characterized in that: The data collection layer module collects the basic information, structural parameters, operating status, and environmental factors of the bridge by utilizing stress sensors, displacement sensors, vibration sensors, temperature sensors, etc., so as to capture the changes of various physical quantities of the bridge in real time.

4. A bridge safety detection, analysis and supervision method according to claim 1, characterized in that: The data analysis unit involved in step 2 includes a data transmission module, which is connected to the data collection layer module. The collected real-time or periodic data such as bridge structure status, environmental changes, traffic flow, etc. are transmitted to the data dynamic and static analysis module via wired or wireless means.

5. The method for detecting, analyzing and supervising bridge safety according to claim 1 is characterized by: The data dynamic and static analysis module, as an important part of the system, undertakes the key task of data analysis. The data dynamic and static analysis module measures and analyzes the structural parameters of the bridge, such as geometric dimensions, material properties, and cross-sectional properties, to understand the basic structure and physical properties of the bridge and make a static analysis. The data dynamic and static analysis module installs high-precision sensors such as accelerometers and vibration sensors to monitor the dynamic responses of the bridge such as vibration and displacement under the influence of external factors such as vehicle load, wind load, and temperature change in real time. The dynamic monitoring data is processed and analyzed, and the dynamic characteristic parameters such as the vibration frequency, damping ratio, and vibration mode of the bridge are calculated to perform dynamic analysis.

6. A bridge safety detection, analysis and supervision method according to claim 1, characterized in that: The evaluation unit involved in the step three includes a bridge information entry module, which is communicated with the data dynamic and static analysis module to record in detail the structural type of the bridge (such as beam bridge, arch bridge, cable-stayed bridge, suspension bridge, etc.), span arrangement, main materials (such as steel, concrete, etc.), design load, etc., which are of great significance for understanding the mechanical properties of the bridge and evaluating its bearing capacity.

7. A bridge safety detection, analysis and supervision method according to claim 1, characterized in that: The bridge information comparison module compares the measured data of the bridge with the theoretical calculated values ​​to evaluate the degree of compliance between the actual performance of the bridge and the design expectations. If there is a large deviation between the measured data and the theoretical calculated values, the design or construction of the bridge may need to be reviewed and inspected.

8. The method for detecting, analyzing and supervising bridge safety according to claim 1 is characterized by: The bridge safety assessment module is designed to comprehensively assess the structural safety, durability, stability and ability of a bridge to cope with various loads and environmental factors.

Images