CN212779344U - Bridge safety real-time monitoring system - Google Patents
Bridge safety real-time monitoring system Download PDFInfo
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- CN212779344U CN212779344U CN202021141530.5U CN202021141530U CN212779344U CN 212779344 U CN212779344 U CN 212779344U CN 202021141530 U CN202021141530 U CN 202021141530U CN 212779344 U CN212779344 U CN 212779344U
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Abstract
The utility model discloses a bridge safety real-time monitoring system, belonging to the technical field of bridge safety monitoring, comprising a meteorological station, a sensor group and a base station; the sensor group is used for data acquisition and monitoring; the base station is used for receiving and processing the data of the bridge attributes acquired by the sensor group; the sensor group comprises a linear displacement sensor, an accelerometer, a strain gauge sensor and an inclinometer which are respectively connected with the base station. The utility model discloses a bridge safety structure monitoring system is through the control and the aassessment to the bridge structure situation, for the bridge send early warning signal under special weather, traffic conditions or when the bridge operation situation is unusual serious, for the maintenance and the management decision-making of bridge provide the foundation and guide, and be applicable to in the bridge of various classification.
Description
Technical Field
The utility model belongs to the technical field of bridge safety monitoring, especially, relate to a bridge safety real-time monitoring system.
Background
In the process of construction and use of the bridge, due to the erosion of environment and harmful substances, the effects of vehicles, earthquakes, fatigue, human factors and the like and the continuous degradation of the performance of materials, all parts of the structure are damaged and deteriorated to different degrees before the design life is reached. If the damage cannot be detected and maintained in time, the driving safety is influenced and the service life of the bridge is shortened, and the bridge is damaged and collapsed suddenly.
The existing public road bridge in China with more than 5000 seats has the total length of 130 kilometers, and bridges above 1/3 all have structural defects, damage in different degrees and hidden dangers of functional failure. In recent years, China has seen a number of serious bridge accidents in succession. These accidents are related to many factors, but the lack of effective monitoring measures and the necessary maintenance and repair measures are among the important reasons. These eye-catching accidents have led to a growing concern about the quality and longevity of modern bridges. Quality detection and health monitoring of bridge structures have become a hotspot in the research of academic and engineering communities at home and abroad.
The traditional bridge detection depends on the experience of managers and technicians to a great extent, a scientific system method is lacked, the conditions of bridges, particularly large bridges, are often lacked of comprehensive grasp and understanding, and information cannot be fed back in time. If the damage estimation on the bridge is insufficient, the best maintenance time is probably lost, the bridge damage process is accelerated, and the service life of the bridge is shortened. If the damage estimation to the bridge is too high, unnecessary fund waste is caused, so that the bearing capacity of the bridge cannot be fully exerted.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: to the problem that exists, the utility model provides a can carry out safety monitoring's bridge safety real-time supervision system to two preceding in real time.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a bridge safety real-time monitoring system comprises a meteorological station, a sensor group and a base station;
the sensor group is used for data acquisition and monitoring; the base station is used for receiving and processing the data of the bridge attributes acquired by the sensor group;
the sensor group comprises a linear displacement sensor, an accelerometer, a strain gauge sensor and an inclinometer which are respectively connected with the base station.
Furthermore, the sensor group also comprises a plurality of wind speed sensors, and each wind speed sensor is provided with a digital serial number.
Further, the model of the wind speed sensor is CMS-SW-C.
Further, the base station is a base station with the model of CMC-100-GE or CMC-50-GE.
Further, the soil pressure sensor is a vibrating wire pressure gauge.
Further, the sensor group further comprises an anchor force sensor and a soil pressure sensor.
Further, the sensor group further comprises a tension meter.
Further, the accelerometer is CMS-3A-C.
Further, the model of the strain gauge sensor is CMS-SG-C-XX.
Furthermore, an interface module with the model of CMS-SG-CM-C is arranged on the strain sensor.
The beneficial effects of the utility model reside in that:
the utility model discloses a bridge safety structure monitoring system is through the control and the aassessment to the bridge structure situation, for the bridge send early warning signal under special weather, traffic conditions or when the bridge operation situation is unusual serious, for the maintenance and the management decision-making of bridge provide the foundation and guide, and be applicable to in the bridge of various classification.
Drawings
Fig. 1 is a schematic diagram of the system structure of the present invention.
Fig. 2 is a schematic structural view of the present invention installed on a common bridge.
Fig. 3 is a schematic structural view of the present invention installed on a suspension bridge.
In the figure: the method comprises the following steps of 1-base station, 2-anchor force sensor, 3-strain type sensor, 4-accelerometer, 5-meteorological station, 6-linear displacement sensor, 7-inclinometer, 8-bridge pier, 9-soil pressure sensor, 10-soil layer, 11-mast lock and 12-tensiometer.
Detailed Description
The technical solutions of the present invention are further described below, but the scope of protection claimed is not limited thereto.
Example 1:
as shown in fig. 1 and 2, a bridge safety real-time monitoring system comprises a weather station 5, a sensor group and a base station 1;
the sensor group is used for data acquisition and monitoring; the base station 1 is used for receiving and processing data of the bridge attributes acquired by the sensor group;
the sensor group comprises a linear displacement sensor 6, an accelerometer 4, a strain gauge sensor 3 and an inclinometer 7 which are respectively connected with the base station 1.
The sensor group also comprises a plurality of wind speed sensors, and each wind speed sensor is provided with a digital serial number. The wind speed sensors measure temperature and wind speed and direction by ultrasonic technology, each sensor having a digital serial number for identifying the respective unit in the network.
The model of the wind speed sensor is CMS-SW-C.
The base station 1 adopts a base station 1 with the model of CMC-100-GE or CMC-50-GE.
The sensor group also comprises an anchor force sensor and a soil pressure sensor
The soil pressure sensor 9 is a vibrating wire pressure gauge. The frequency output of the vibrating wire device of the electric pressure gauge of the vibrating wire pressure gauge is not interfered by external electric noise, and the vibrating wire device can work under the wet cloth wire environment of geotechnical engineering.
The accelerometer 4 is of the type CMS-3A-C.
The strain gauge sensor 3 is of the type CMS-SG-C-XX. The multipoint pressure measuring character string allows a plurality of vibrating wire pressure gauges to be connected to a single cable, so that the installation of a plurality of strain sensors 3 in the whole process is facilitated, the single cable prevents vertical holes, a polyurethane sheath, Kevlar steel bars and non-stretching cables to ensure complete water resistance and reduce leakage, and the common conductor-free strain sensor can achieve the maximization of the independent reliability of each strain sensor 3.
And an interface module with the model of CMS-SG-CM-C is arranged on the strain sensor 3. The interface module is designed to work as a strain sensor 3, and when a circuit module in the interface module is a microprocessor unit for information processing in a dual-channel mode, the information processing of a dual-channel scheme of the circuit module and the microprocessor unit is executed; allowing the simultaneous connection of one or two-axis strain gauge sensors or of two single-axis strain gauges, the solution adopted provides high noise immunity, reduces the stability problems of the output signal due to time and temperature variations to be transmitted to a remote device for the collection of processing information, the design features of the strain gauge sensors allow them to be easily integrated into weighing systems ensuring high reliability of incorporation, the strain gauge sensors 3 being able to operate in any environment.
The strain type sensor is mainly installed on a common bridge in the embodiment, wherein the inclinometers 7 are respectively installed on the piers 8, and the strain type sensors 3 are respectively installed on the piers 8 and the bottom of the bridge.
Example 2:
as shown in fig. 1 and 3, a bridge safety real-time monitoring system includes a weather station 5, a sensor group and a base station 1;
the sensor group is used for data acquisition and monitoring; the base station 1 is used for receiving and processing data of the bridge attributes acquired by the sensor group;
the sensor group comprises a linear displacement sensor 6, an accelerometer 4, a strain gauge sensor 3 and an inclinometer 7 which are respectively connected with the base station 1.
The sensor group also comprises a plurality of wind speed sensors, and each wind speed sensor is provided with a digital serial number. The wind speed sensors measure temperature and wind speed and direction by ultrasonic technology, each sensor having a digital serial number for identifying the respective unit in the network.
The model of the wind speed sensor is CMS-SW-C.
The base station 1 adopts a base station 1 with the model of CMC-100-GE or CMC-50-GE.
The sensor set also includes a tension gauge 12. The strain gauge 12 unit measures the bending position of the cross elastic element of the mast cable for measuring the tension degree of the bridge mast lock 11 and has the design characteristic of high precision strain gauge which is easy to integrate, thus ensuring high reliability of doping.
The accelerometer 4 is of the type CMS-3A-C.
The strain gauge sensor 3 is of the type CMS-SG-C-XX. The multipoint pressure measuring character string allows a plurality of vibrating wire pressure gauges to be connected to a single cable, so that the installation of a plurality of strain sensors 3 in the whole process is facilitated, the single cable prevents vertical holes, a polyurethane sheath, Kevlar steel bars and non-stretching cables to ensure complete water resistance and reduce leakage, and the common conductor-free strain sensor can achieve the maximization of the independent reliability of each strain sensor 3.
And an interface module with the model of CMS-SG-CM-C is arranged on the strain sensor 3. The interface module is designed to work as a strain sensor 3, and when a circuit module in the interface module is a microprocessor unit for information processing in a dual-channel mode, the information processing of a dual-channel scheme of the circuit module and the microprocessor unit is executed; allowing the simultaneous connection of one or two-axis strain gauge sensors or of two single-axis strain gauges, the solution adopted provides high noise immunity, reduces the stability problems of the output signal due to time and temperature variations to be transmitted to a remote device for the collection of processing information, the design features of the strain gauge sensors allow them to be easily integrated into weighing systems ensuring high reliability of incorporation, the strain gauge sensors 3 being able to operate in any environment.
The difference between the embodiment 2 and the embodiment 1 is that the inclination measuring device is mounted on a suspension bridge, wherein the inclinometer 7 and the meteorological station 5 are mounted at the top end of a vertical column of the suspension bridge, a tension meter is arranged at the bottom end of a mast lock, and an accelerometer is arranged on the mast lock.
In the two embodiments, the sensor group is connected with the base station 1 through a cable or a router, wherein data such as temperature, humidity, wind speed, wind direction and the like are provided for the base station 1 through the meteorological station 5 and the wind speed sensor in the sensor group, load monitoring, deformation monitoring, strain monitoring and vibration monitoring can be carried out on the bridge through the linear displacement sensor 6, the accelerometer 4, the strain sensor 3, the anchor force sensor 2, the inclinometer 7 and the soil pressure sensor 9, the safety of the bridge is monitored and evaluated in real time, an early warning signal is sent out when the bridge is in special climates and traffic conditions or the operation condition of the bridge is abnormal and serious, and basis and guidance are provided for maintenance and management decisions of the bridge.
Claims (7)
1. The utility model provides a bridge safety real-time monitoring system which characterized in that: comprises a weather station (5), a sensor group and a base station (1);
the sensor group is used for data acquisition and monitoring; the base station (1) is used for receiving and processing data of the bridge attributes acquired by the sensor group;
the sensor group comprises a linear displacement sensor (6), an accelerometer (4), a strain gauge sensor (3) and an inclinometer (7) which are respectively connected with the base station (1); wherein the inclinometers (7) are respectively arranged on the piers (8), and the strain sensors (3) are respectively arranged at the piers (8) and the bridge bottoms;
the sensor group also comprises an anchor force sensor (2) and a soil pressure sensor (9); the soil pressure sensor (9) is a vibrating wire pressure gauge; the frequency output of a vibrating wire device of an electric manometer of the vibrating wire type pressure gauge is not interfered by external electric noise and can work under the wet cloth wire environment of geotechnical engineering;
the sensor group further comprises a tensiometer (12); the tension meter (12) is arranged at the bottom end of the mast lock, and the accelerometer (4) is arranged on the mast lock.
2. The bridge safety real-time monitoring system according to claim 1, characterized in that: the sensor group also comprises a plurality of wind speed sensors, and each wind speed sensor is provided with a digital serial number.
3. The bridge safety real-time monitoring system according to claim 2, characterized in that: the model of the wind speed sensor is CMS-SW-C.
4. The bridge safety real-time monitoring system according to claim 1, characterized in that: the base station (1) adopts a base station (1) with the model of CMC-100-GE or CMC-50-GE.
5. The bridge safety real-time monitoring system according to claim 1, characterized in that: the accelerometer (4) is CMS-3A-C.
6. The bridge safety real-time monitoring system according to claim 1, characterized in that: the strain gauge sensor (3) is CMS-SG-C-XX.
7. The bridge safety real-time monitoring system of claim 6, wherein: and an interface module with the model of CMS-SG-CM-C is arranged on the strain sensor (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021141530.5U CN212779344U (en) | 2020-06-18 | 2020-06-18 | Bridge safety real-time monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021141530.5U CN212779344U (en) | 2020-06-18 | 2020-06-18 | Bridge safety real-time monitoring system |
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| CN212779344U true CN212779344U (en) | 2021-03-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024056148A1 (en) | 2022-09-12 | 2024-03-21 | Vsl International Ag | Sensing system for measuring physical parameters of a stay cable and method thereof |
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2020
- 2020-06-18 CN CN202021141530.5U patent/CN212779344U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024056148A1 (en) | 2022-09-12 | 2024-03-21 | Vsl International Ag | Sensing system for measuring physical parameters of a stay cable and method thereof |
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