Optimal filtering methods to structural damage estimation under ground excitation

Chien Shu Hsieh*, Der-Cherng Liaw, Tzu Hsuan Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

This paper considers the problem of shear building damage estimation subject to earthquake ground excitation using the Kalman filtering approach. The structural damage is assumed to take the form of reduced elemental stiffness. Two damage estimation algorithms are proposed: one is the multiple model approach via the optimal two-stage Kalman estimator (OTSKE), and the other is the robust two-stage Kalman filter (RTSKF), an unbiased minimum-variance filtering approach to determine the locations and extents of the damage stiffness. A numerical example of a six-storey shear plane frame structure subject to base excitation is used to illustrate the usefulness of the proposed results.

Original languageEnglish
Article number528109
JournalThe Scientific World Journal
Volume2013
DOIs
StatePublished - 1 Dec 2013

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