Identification of Soil-Structure Interaction System Using Earthquake Response Data

This paper demonstrates how system identification techniques can be successfully applied to a soil–structure interaction system using the earthquake response data. The parameters identified are the shear moduli of several near-field soil regions and Young’s moduli of the shell sections of the structure. The soil–structure interaction system is modeled by the finite element method combined with the infinite element formulation for the unbounded layered soil medium. The simulated earthquake responses using the identified parameters are shown to be in excellent agreement with the observed response data. Prediction of the responses is also carried out for a larger earthquake event using the identified parameters as the initial properties in the equivalent linearization procedure. It has been found that the predicted responses are also compared very well with the measured responses.
Publisher
American Society of Civil Engineers
Issue Date
2004-07
Keywords

Soil-structure interaction; Earthquakes; Data analysis; Seismic design

Citation

Journal of Engineering Mechanics, Vol.130, No.7, pp.753-761

ISSN
0733-9399
URI
http://hdl.handle.net/10203/10444
Appears in Collection
CE-Journal Papers(저널논문)
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