Strain modal parameter identification for bridge structures based on stochastic subspace and stabilization diagram methods

Author

Liu, Hanbing ; Wu, Chunli

Author_Institution

Coll. of Transp., Jilin Univ., Changchun, China

fYear

2011

fDate

24-26 June 2011

Firstpage

3477

Lastpage

3480

Abstract

Vibration-based bridge structural health monitoring usually needs to extract the modal parameters from vibration measurements before damage identification and condition assessment. Stochastic subspace identification and stabilization diagram methods are novel methods developed recent years. An example of a simple bridge has proved that strain modal parameter identification based on stochastic subspace and stabilization diagram methods is very effective.

Keywords

bridges (structures); condition monitoring; mechanical stability; parameter estimation; stochastic processes; strain sensors; structural engineering; vibration measurement; condition assessment; damage identification; stabilization diagram methods; stochastic subspace; strain modal parameter identification; vibration based bridge structural health monitoring; vibration measurements; Bridges; Covariance matrix; Finite element methods; Mathematical model; Stochastic processes; Strain; Vibrations; bridge structures; parameter identification; stabilization diagram; stochastic subspace; strain modal;

fLanguage

English

Publisher

ieee

Conference_Titel

Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-9172-8

Type

conf

DOI

10.1109/RSETE.2011.5965060

Filename

5965060