摘要
本文提出采用高采样率GPS动态测量的手段监测大型桥梁的摆动情况,并且用小波分析的方法进行观测数据的消噪以及摆动特征的提取等。将该方法应用到上海市某大桥上进行试验,结果表明,本文所提出的方法是行之有效的,能够提取到桥梁摆动的特征,并且可对观测数据的精度进行估计,说明该方法在桥梁摆动安全监测方面具有较好的实用性和参考价值。
This paper puts forward the monitoring of large scale bridge swing, in which high sampling rate GPS dynamic measurement, de -noise of observation data and extraction of swing features are used. This method has been tested for a large scale bridge in Shanghai city. The result indicates that this method is very useful. It can extract swing features, estimate the precision of observation data, and give reference value in brideg swing monitoring.
出处
《工程勘察》
CSCD
北大核心
2008年第10期55-58,共4页
Geotechnical Investigation & Surveying
关键词
动态测量
桥梁摆动
小波分析
消噪
特征提取
精度评定
dynamic measurement
bride swing
wavelet analysis
de-noise
feature extraction
precision estimation
