DocumentCode
433973
Title
Nonlinear restoring force estimation in civil structures using a high gain observer
Author
Garrido, R. ; Rivero-Angeles, J. ; Martinez-Guerra, R. ; Gomez-Gonzalez, B. ; Martinez-Garcia, J.C.
Author_Institution
Dept. of Autom. Control, CINVESTAV-IPN, Mexico City, Mexico
Volume
3
fYear
2004
fDate
20-23 July 2004
Firstpage
1621
Abstract
Strong ground motions may cause damage to structural elements by cracking or yielding. Hysteresis cycles are a measure of this damage. The present paper uses a class of integral high gain observers to estimate the unknown nonlinear restoring force of a single-degree-of-freedom structure. Simulations are carried out using the Mexico City at SCT (1985) and the El Centro (1940) time history acceleration records as ground motion inputs. Encouraging results are obtained for the state and nonlinear restoring force estimation.
Keywords
hysteresis; nonlinear estimation; observers; parameter estimation; structural engineering; El Centro; Mexico City; acceleration records; civil structures; ground motion; high gain observer; hysteresis cycle; nonlinear restoring force estimation; Cities and towns; Damping; Energy dissipation; Hysteresis; Motion estimation; Noise measurement; Nonlinear systems; Observers; State estimation; Vectors;
fLanguage
English
Publisher
ieee
Conference_Titel
Control Conference, 2004. 5th Asian
Conference_Location
Melbourne, Victoria, Australia
Print_ISBN
0-7803-8873-9
Type
conf
Filename
1426883
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