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http://dx.doi.org/10.5000/EESK.2002.6.6.007

Seismic Damage Assessment and Nonlinear Structural Identification Using Measured Seismic Responses  

이형진 (창원대학교 토목공학과)
김남식 (현대건설 기술연구소)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.6, no.6, 2002 , pp. 7-15 More about this Journal
Abstract
In this paper, the nonlinear parameter estimation method using the estimated hysteresis of each structural members was studied for the purpose of efficient seismic damage prediction and estimation of MDOF nonlinear structural model in the shaking table test. The hysteresis of each structural members can be obtained by the conversion of measured response histories into relative motions of each structural members and member forces. These hysteresis can be used to evaluate various kinds of damage indices of each structural members. The MDOF nonlinear structural model for further analysis(re-analysis) can be easily reconstructed using estimated nonlinear structural parameters of each structural members. To demonstrate the proposed techniques, several numerical and experimental example analyses are carried out. The results indicate that the proposed method can be very useful to assess local seismic damages of structures.
Keywords
seismic damage; hysteresis; nonlinear parameter estimation; structural re-analysis;
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