Bridge health monitoring system based on acoustic emission technology

A technology of bridge health monitoring and acoustic emission technology, applied in the direction of material analysis using acoustic emission technology, can solve problems such as bridge health detection/monitoring technology defects, bridge collapse, etc., to solve the problems of bridge health monitoring, and the system has high sensitivity Effect

Inactive Publication Date: 2014-05-07
SHANGHAI BOOM FIBER SENSING TECH
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Problems solved by technology

However, accidents such as bridge collapses also emerge in endlessly, some are caused by human factors such as cutting corners, and some are caused by technical defects in bridge health inspection / monitoring
At present, there is no technology that can effectively detect / monitor bridge health problems and monitor the health of bridges in real time

Method used

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  • Bridge health monitoring system based on acoustic emission technology
  • Bridge health monitoring system based on acoustic emission technology
  • Bridge health monitoring system based on acoustic emission technology

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Embodiment Construction

[0023] The invention is mainly used for monitoring the health status of the cable-stayed bridge, and the cable-stayed bridge is mainly composed of a cable tower, a main girder, a cable-stayed lock, a bridge pier and a bridge deck. Acoustic emission sensors are arranged on the cable tower, main girder, each cable-stayed lock and each pier of the cable-stayed bridge. The number of acoustic emission sensors installed at each part depends on the site conditions, and one or more can be flexibly installed.

[0024] A bridge health monitoring system based on acoustic emission technology, characterized in that: the monitoring system includes a plurality of acoustic emission data collectors 1, an acoustic emission signal processor 2, a monitoring platform system 3, a CAN bus 4 and the Internet 5, the acoustic emission The emission data collector 1 is connected in series to one end of the CAN bus 4 , the other end of the CAN bus 4 is connected to the acoustic emission signal processor 2 ...

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Abstract

The invention discloses a bridge health monitoring system based on an acoustic emission technology. The bridge health monitoring system comprises a plurality of acoustic emission data acquirers, an acoustic emission signal processor, a monitoring platform system, a CAN bus and the internet, wherein the acoustic emission data acquirers are connected to one end of the CAN bus in series; the other end of the CAN bus is connected with the acoustic emission signal processor; the acoustic emission signal processor is connected with the monitoring platform system through the internet; each acoustic emission data acquirer consists of an acoustic emission sensor, a signal acquirer and a CAN bus transceiver, the output end of the acoustic emission sensor is connected with the input end of the signal acquirer, the output end of the signal acquirer is connected with the input end of the CAN bus transceiver, and the output end of the CAN bus transceiver is connected with the CAN bus. The bridge health monitoring system has the advantages that with adoption of the acoustic emission sensors, the safety health condition of each main part of a bridge can be monitored in real time, any potential safety hazards about the fatigue of the bridge is early warned, the bridge can be timely maintained, and the problem about health monitoring of the bridge is relatively well solved.

Description

technical field [0001] The invention relates to the technical field of bridge health monitoring, and in particular to a bridge health monitoring system based on acoustic emission technology. Background technique [0002] In recent years, the country has invested heavily in infrastructure construction, and the construction of various types of bridges has been fully developed, such as highway bridges and high-speed railway bridges. However, accidents such as bridge collapses also emerge in endlessly, some are caused by human factors such as cutting corners, and some are caused by technical defects in bridge health inspection / monitoring. At present, there is no technology that can effectively detect / monitor bridge health problems and monitor the health status of bridges in real time. Therefore, how to design a system that can effectively monitor the health of bridges, so that when an accident occurs, an early warning can be generated, so as to avoid the occurrence of casualtie...

Claims

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Application Information

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IPC IPC(8): G01N29/14
Inventor 黄正
Owner SHANGHAI BOOM FIBER SENSING TECH
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