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Offline Data Mining from First Year Health Monitoring Measurement ofDonghai Bridge

机译:东海大桥第一年健康监测量测离线数据挖掘

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Donghai Bridges is a linkage connecting the Luchao Port in Shanghai and the Yangshan Island deepwater Port in Zhejiang Province. A structural health monitoring system (SHMS) for Donghai Bridgewas designed to be able to automatically collect the data of displacement, force, stress and so on ofthe structure through the sensors embedded in or installed on the surface of the structure. Since theformal opening to use on December 10th 2005, Donghai Bridge has operated normally for almosttwo years. The SHMS installed on the bridge has collected millions of valuable data to describe thehealthy condition of the bridge under different types of loadings (wind, ground motion, wave andetc), different types of environmental variations (such as temperature, moisture and etc). It is thusthe time to conduct data mining on the signal, and accumulate the baseline knowledge about thebridge. In this paper, some statistical data mining and knowledge discovery techniques arepresented. These techniques were adopted to process the downloaded 8-months (from January 1st2007 to August 31st 2007) structural monitoring data from the SHMS of Donghai Bridge to discoverthe baseline information about the variation of the modal characteristics of the bridge. Some resultsare presented in this paper.
机译:东海大桥是连接上海芦潮港和洋山岛深处的桥梁 浙江省水上港口。东海大桥结构健康监测系统(SHMS) 被设计为能够自动收集位移,力,应力等数据 通过嵌入或安装在结构表面上的传感器来检测结构。自从 东海大桥于2005年12月10日正式开放使用, 两年安装在桥上的SHMS已收集了数百万个有价值的数据,以描述 在不同类型的载荷(风,地震动,波浪和振动)下桥梁的健康状况 等),不同类型的环境变化(例如温度,湿度等)。因此 在信号上进行数据挖掘并累积有关信号的基线知识的时间 桥。在本文中,一些统计数据挖掘和知识发现技术是 提出了。这些技术被用来处理下载的8个月(从1月1日开始) 2007年至2007年8月31日)从东海大桥的SHMS进行结构监测数据以发现 有关桥梁模态特性变化的基线信息。一些结果 本文介绍。

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