Continuous time parameter estimation of multi-story buildings

David Ma; Ning-Shou Xu

doi:10.1117/12.715326

10 April 2007 Continuous time parameter estimation of multi-story buildings

David Ma, Ning-Shou Xu

Proceedings Volume 6529, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2007; 65291V (2007) https://doi.org/10.1117/12.715326
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2007, San Diego, California, United States

Abstract

Two parameter estimation approaches have been developed for system modeling and health monitoring of multi-story buildings based on structural vibration responses under seismic excitation and/or applied forces. In the first approach, parameter estimation is performed in a decentralized fashion, i.e. parameters are estimated for each story individually, while in the second approach, the parameters are estimated in a centralized manner for the entire structure. In order to reduce the effect of random noise, drift with D.C. off-set as well as low-frequency disturbances in the measured data, three kinds of filter (i.e., high-pass filter, moving average filter and Kalman filter) have been used for data preprocessing. Numerical simulations based on lumped parameter models and a finite element model of a realistic building have been conducted. The results show that, the performance of the decentralized approach is better than the centralized one in the cases studied.

Citation Download Citation

David Ma and Ning-Shou Xu "Continuous time parameter estimation of multi-story buildings", Proc. SPIE 6529, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2007, 65291V (10 April 2007); https://doi.org/10.1117/12.715326

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