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A Bridge Health Monitoring Method Using the Hilbert-Huang Transform: A Case StudyWe have developed a new method for nondestructive instrument method to monitor the health of a bridge. This new method is based on a transient test load and simple data collection. The nuclear of the method is the new invented nonstationary and nonlinear time series analysis method, the Empirical Mode Decomposition and Hilbert Spectral Analysis. The final decision on the health of the bridge structure is based on the nonlinear characteristic of the data, and on the comparison between the free and the forced vibration frequencies. Thus this alternative method enjoys many advantages: (1) no a priori data required, (2) simple data collection, and (3) minimum traffic disruption. Results from a case study of the Shing-Nan Bridge in Hou-Wei will be reported.
Document ID
20000116141
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Huang, Norden E.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Chiang, Weiling
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Busalacchi, Antonio J.
Date Acquired
August 19, 2013
Publication Date
January 1, 2000
Subject Category
Quality Assurance And Reliability
Meeting Information
Meeting: International Bridge Conference
Location: Taipei
Country: Taiwan, Province of China
Start Date: September 13, 2000
End Date: September 15, 2000
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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