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Vibration Remote Monitoring System of Continuous Steel Truss girder for the Wuhu Yangtze River Bridge

机译：芜湖长江大桥连续钢桁梁振动远程监测系统。

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摘要

Important significance of vibration monitoring in bridge structure health monitoring is briefly introduced first in this paper. The software of ANSYS is adopted to establish the finite model of the Wuhu Yangtze River Bridge, and the detailed structure analysis and sensor optimization layout are proposed. The vibration monitoring ideas and practical plans for the Wuhu Yangtze River Bridge are proposed. The vibration monitoring subsystem which includes monitoring contents, layout of measuring points, transducers, amplifiers and methods of signal analysis and processing etc is significantly investigated. The vibration monitoring mode is designed and it divides into two types, one is real-time trigger acquisition, the other is cyclical acquisition. A set of software, which can realize the remote data acquisition, reception, analysis, real-time display, alarm and data save, is developed with the use of the advanced software platform LabVIEW. And a set of perfect vibration remote monitoring and state evaluation system is established. The structural safety monitoring and state evaluation system can realize the monitoring of the structural responses and working conditions in real time, and it can analyze the structural working state and assess the structural reliability using the information obtained from the monitoring system for the Wuhu Yangtze River Bridge. It would be able to provide the scientific decision-making bases for the bridge management and maintenance.
机译：首先简要介绍了振动监测在桥梁结构健康监测中的重要意义。采用ANSYS软件建立了芜湖长江大桥的有限元模型，并提出了详细的结构分析和传感器优化布局。提出了芜湖长江大桥的振动监测思路和实际方案。振动监测子系统包括监测内容，测量点布局，换能器，放大器以及信号分析和处理方法等。设计了振动监测模式，分为两种类型，一种是实时触发采集，另一种是周期性采集。利用先进的软件平台LabVIEW，开发了一套可以实现远程数据采集，接收，分析，实时显示，报警和数据保存的软件。建立了一套完善的振动远程监测与状态评估系统。结构安全监测与状态评估系统可以实现对结构响应和工作状态的实时监测，并可以利用从芜湖长江大桥监测系统获得的信息来分析结构的工作状态并评估结构的可靠性。 。它将为桥梁的管理和维护提供科学的决策依据。

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