Dynamic Structural Monitoring Using the Kinematic Positioning of a Robotic Total Station
Many laboratory or indoor tests have revealed the advantages of the kinematic positioning of robotic tachemoeteric systems (RTS),and outdoor applications of the RTS kinematic positioning in the high dynamic tracking are still in study. An ambient vibration test with a Leica TCA2003 total station was conducted to study the feasibility in measuring the dynamic characteristics of cable-stayed bridges. Dynamic data were acquired by using the single-way precise trigonometric leveling method with the automatic tracking model in a 3Hz data rate. Pretreatments (e.g.,trend item elimination,smoothing and low-pass frequency filter) and the Power Spectral Density (PSD) approach were employed to obtain the vertical natural frequency of the box girder. The results agree well with the predicted values by the finite element model (FEM) analysis.
TCA2003 cable-stayed bridge Power Spectral Density natural frequency
Xu Chang Hu Qunge
Zhejiang Water Conservancy and Hydropower College Hangzhou,310018,China
国际会议
2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)
北京
英文
1146-1150
2009-08-16（万方平台首次上网日期，不代表论文的发表时间）