Stress monitoring system for steel box girder cable-stayed bridge

Abstract

The invention relates to the technical field of cable-stayed bridge monitoring, and discloses a stress monitoring system for a steel box girder cable-stayed bridge, which comprises a data processing center, a data acquisition module, a data analysis module, an on-site monitoring module and a storage database, the data processing center is electrically connected with a data acquisition module, a data analysis module, an on-site monitoring module and a storage database; the data acquisition module is used for acquiring the stress condition of the cable-stayed bridge, the stress condition is analyzed through the data analysis module, and risk evaluation is made; the on-site monitoring module is used for monitoring on-site pictures of the cable-stayed bridge, and the storage database is used for storing monitoring data; according to the monitoring system provided by the invention, the stress state of the cable-stayed bridge can be monitored, the risk state of the cable-stayed bridge can be judged through monitoring, and when an abnormal state occurs, the situation can be known in advance, alarm reminding and timely processing can be carried out, so that the occurrence of unforeseen circumstances is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of cable-stayed bridge monitoring, and more specifically, to a force monitoring system for a steel box girder cable-stayed bridge. Background Art

[0002] As a cable-stayed system, the cable-stayed bridge has a larger span capacity than the beam bridge and is the main type of long-span bridge. A cable-stayed bridge is a bridge in which the beam is pulled on the tower column by several cable-stayed cables. It consists of three parts: beam, cable-stayed cable and tower column. A cable-stayed bridge is a self-anchored system, and the horizontal force of the cable-stayed cable is borne by the beam. In addition to being supported on the pier, the beam is also supported on the cable-stayed cable led from the tower column. According to the different materials used for the beam, it can be divided into steel cable-stayed bridge, combined beam cable-stayed bridge and concrete beam cable-stayed bridge. At present, the bridge health monitoring system that has been put into use has the following problems for force monitoring: there are few types of monitoring sensors, and the installation position is unreasonable, which cannot accurately and effectively perform health monitoring. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a force monitoring system for a steel box girder cable-stayed bridge, which has the advantage of more precise operation.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a force monitoring system for a steel box girder cable-stayed bridge, comprising: a data processing center, a data acquisition module, a data analysis module, a field monitoring module and a storage database, wherein the data processing center is electrically connected to the data acquisition module, the data analysis module, the field monitoring module and the storage database; the data acquisition module is used to collect the force condition of the cable-stayed bridge, and the force condition is analyzed by the data analysis module to make a risk assessment; the field monitoring module is used to monitor the on-site picture of the cable-stayed bridge, and the storage database is used to save the monitoring data.

[0005] As a preferred technical solution of the present invention, the data acquisition module is provided with an anchor cable monitoring module, and the anchor cable monitoring module is provided with a plurality of groups of sensors arranged on the anchor cable body for collecting the stress state of the anchor cable.

[0006] As a preferred technical solution of the present invention, the sensor types in the anchor cable monitoring module include but are not limited to vibrating wire strain sensors, servo accelerometers, anchor cable force rings, cable force acceleration sensors, and pressure transmitters.

[0007] As a preferred technical solution of the present invention, the data acquisition module regularly feeds back monitoring information to the data processing center, and after receiving the information, the data processing center organizes the information and sends it to the data analysis module for analysis and processing.

[0008] As a preferred technical solution of the present invention, a data integration unit is provided in the data analysis module, and the data integration unit classifies the data types in the monitoring information, adds time stamps and then feeds back to the data analysis module.

[0009] As a preferred technical solution of the present invention, the data analysis module is further provided with a risk judgment unit, which compares the data in the received monitoring information with the limit threshold of the anchor cable, and determines it as abnormal when the data range exceeds the limit threshold.

[0010] As a preferred technical solution of the present invention, the on-site monitoring module is provided with a digital camera, and multiple groups of the digital cameras are arranged at the cable-stayed bridge site to comprehensively cover the cable-stayed bridge site.

[0011] As a preferred technical solution of the present invention, the on-site monitoring module is provided with an audible and visual alarm, and the audible and visual alarm performs audible and visual alarm after the data analysis module analyzes abnormal data.

[0012] As a preferred technical solution of the present invention, the data processing center is provided with a data transmission module, and the data transmission module is provided with a remote user terminal.

[0013] As a preferred technical solution of the present invention, the remote user terminal is any one of a smart phone, a laptop computer, a desktop computer, a tablet computer, and a smart screen, and the connection method between the data transmission module and the remote user terminal includes but is not limited to wireless connection, wired connection, Bluetooth connection, and zigbee connection.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the monitoring system provided by the present invention can monitor the stress state of the cable-stayed bridge, determine the risk state of the cable-stayed bridge through monitoring, and be able to know the situation in advance when an abnormal state occurs, issue an alarm, and handle it in time to reduce the occurrence of accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] In the figure: 1. Data processing center; 2. Data acquisition module; 3. Data analysis module; 4. On-site monitoring module; 5. Storage database; 6. Data transmission module; 7. Remote user terminal; 8. Anchor monitoring module; 9. Risk judgment unit; 10. Data integration unit; 11. Digital camera; 12. Sound and light alarm. DETAILED DESCRIPTION

[0017] 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.

[0018] like Figure 1 As shown, the present invention provides a stress monitoring system for a steel box girder cable-stayed bridge, comprising: a data processing center 1, a data acquisition module 2, a data analysis module 3, a field monitoring module 4 and a storage database 5, wherein the data processing center 1 is electrically connected to the data acquisition module 2, the data analysis module 3, the field monitoring module 4 and the storage database 5; the data acquisition module 2 is used to collect the stress condition of the cable-stayed bridge, and the stress condition is analyzed by the data analysis module 3 to make a risk assessment; the field monitoring module 4 is used to monitor the on-site picture of the cable-stayed bridge, and the storage database 5 is used to save the monitoring data.

[0019] The data acquisition module 2 is provided with an anchor cable monitoring module 8, and the anchor cable monitoring module 8 is provided with a plurality of groups of sensors arranged on the anchor cable body for collecting the stress state of the anchor cable.

[0020] Among them, the sensor types in the anchor cable monitoring module 8 include but are not limited to vibrating string strain sensors, servo accelerometers, anchor cable force rings, cable force acceleration sensors, and pressure transmitters.

[0021] The data acquisition module 2 regularly feeds back monitoring information to the data processing center 1. After receiving the information, the data processing center 1 organizes the information and sends it to the data analysis module 3 for analysis and processing.

[0022] The data analysis module 3 is provided with a data integration unit 10 , which classifies the data types in the monitoring information, adds time stamps and then feeds back to the data analysis module 3 .

[0023] The data analysis module 3 is further provided with a risk judgment unit 9, which compares the data in the received monitoring information with the limit threshold of the anchor cable, and determines it as abnormal when the data range exceeds the limit threshold.

[0024] The on-site monitoring module 4 is provided with a digital camera 11 , and a plurality of digital cameras 11 are provided at the cable-stayed bridge site to comprehensively cover the cable-stayed bridge site.

[0025] The on-site monitoring module 4 is provided with an audible and visual alarm 12 , and the audible and visual alarm 12 performs audible and visual alarm after the data analysis module 3 analyzes abnormal data.

[0026] The data processing center 1 is provided with a data transmission module 6 , and the data transmission module 6 is provided with a remote user terminal 7 .

[0027] Among them, the remote user terminal 7 is any one of a smart phone, a laptop computer, a desktop computer, a tablet computer, and a smart screen, and the connection method between the data transmission module 6 and the remote user terminal 7 includes but is not limited to wireless connection, wired connection, Bluetooth connection, and zigbee connection.

[0028] Working principle:

[0029] The data acquisition module 2 is used to collect the stress condition of the cable-stayed bridge. The sensor in the anchor cable monitoring module 8 is set on the anchor cable body to collect the stress state of the anchor cable. The collected data is fed back to the data processing center 1 at a regular interval. After receiving the information, the data processing center 1 organizes the information and sends it to the data analysis module 3 for analysis and processing. The data analysis module 3 classifies the data types in the monitoring information through the data integration unit 10, and adds a time mark to compare the data in the received monitoring information with the limit threshold of the anchor cable using the risk judgment unit 9. When the data range exceeds the limit threshold, it is judged to be abnormal. The on-site monitoring module 4 is provided with a digital camera 11 and an audible and visual alarm 12, which are used to obtain images and issue an alarm when an abnormality occurs. The data processing center 1 is connected to the remote user terminal 7 through the data transmission module 6 for remote management.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] 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 force monitoring system for a steel box girder cable-stayed bridge, characterized in that: The invention comprises: a data processing center (1), a data acquisition module (2), a data analysis module (3), an on-site monitoring module (4) and a storage database (5); the data processing center (1) is electrically connected to the data acquisition module (2), the data analysis module (3), the on-site monitoring module (4) and the storage database (5); the data acquisition module (2) is used to acquire the stress condition of the cable-stayed bridge, and the stress condition is analyzed by the data analysis module (3) to make a risk assessment; the on-site monitoring module (4) is used to monitor the on-site picture of the cable-stayed bridge, and the storage database (5) is used to save the monitoring data.

2. The force monitoring system for a steel box girder cable-stayed bridge according to claim 1, characterized in that: The data acquisition module (2) is provided with an anchor cable monitoring module (8), and the anchor cable monitoring module (8) is provided with a plurality of groups of sensors, which are arranged on the anchor cable body and are used to collect the stress state of the anchor cable.

3. The force monitoring system for a steel box girder cable-stayed bridge according to claim 2, characterized in that: The sensor types in the anchor cable monitoring module (8) include, but are not limited to, vibrating wire strain sensors, servo accelerometers, anchor cable force rings, cable force acceleration sensors, and pressure transmitters.

4. The force monitoring system for a steel box girder cable-stayed bridge according to claim 1, characterized in that: The data acquisition module (2) regularly feeds back monitoring information to the data processing center (1), and after receiving the information, the data processing center (1) organizes the information and sends it to the data analysis module (3) for analysis and processing.

5. The force monitoring system for a steel box girder cable-stayed bridge according to claim 1, characterized in that: The data analysis module (3) is provided with a data integration unit (10), and the data integration unit (10) classifies the data types in the monitoring information, adds a time mark, and then feeds the information back to the data analysis module (3).

6. The force monitoring system for a steel box girder cable-stayed bridge according to claim 1, characterized in that: The data analysis module (3) is also provided with a risk judgment unit (9), which compares the data in the received monitoring information with the limit threshold of the anchor cable, and determines it as abnormal when the data range exceeds the limit threshold.

7. The force monitoring system for a steel box girder cable-stayed bridge according to claim 1, characterized in that: The on-site monitoring module (4) is provided with a digital camera (11), and a plurality of groups of the digital cameras (11) are provided at the cable-stayed bridge site to comprehensively cover the cable-stayed bridge site.

8. The force monitoring system for a steel box girder cable-stayed bridge according to claim 1, characterized in that: The on-site monitoring module (4) is provided with an audible and visual alarm (12), and the audible and visual alarm (12) generates an audible and visual alarm after the data analysis module (3) analyzes abnormal data.

9. The force monitoring system for a steel box girder cable-stayed bridge according to claim 1, characterized in that: The data processing center (1) is provided with a data transmission module (6), and the data transmission module (6) is provided with a remote user terminal (7).

10. The force monitoring system for a steel box girder cable-stayed bridge according to claim 1, characterized in that: The remote user terminal (7) is any one of a smart phone, a laptop computer, a desktop computer, a tablet computer, and a smart screen. The connection method between the data transmission module (6) and the remote user terminal (7) includes but is not limited to wireless connection, wired connection, Bluetooth connection, and Zigbee connection.

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