On-line response and damage estimation of a shear wall structure tested on a shake table using Bayesian filtering

Kalil Erazo; Satish Nagarajaiah

doi:10.1117/12.2527936

27 March 2019 On-line response and damage estimation of a shear wall structure tested on a shake table using Bayesian filtering

Kalil Erazo, Satish Nagarajaiah

Author Affiliations +

Proceedings Volume 10970, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2019; 1097032 (2019) https://doi.org/10.1117/12.2527936
Event: SPIE Smart Structures + Nondestructive Evaluation, 2019, Denver, Colorado, United States

Abstract

This paper presents the application of a probabilistic method to estimate the complete dynamic response and state of damage of a large-scale structural system subjected to strong base excitations. The structure considered consists of a sevenstory slice of a shear wall building tested at the George E. Brown Jr. Network for Earthquake Engineering Simulation site at the University of California at San Diego. The acceleration response measured at limited locations is combined with a nonlinear model to estimate the complete dynamic response at unmeasured degrees of freedom. To improve the predicting capability of the mathematical model a subset of the parameters is jointly estimated with the response, a strategy known as joint state-parameter estimation or augmented state estimation. The estimated response is used to compute a damage index as a quantitative measure of damage.

Citation Download Citation

Kalil Erazo and Satish Nagarajaiah "On-line response and damage estimation of a shear wall structure tested on a shake table using Bayesian filtering", Proc. SPIE 10970, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2019, 1097032 (27 March 2019); https://doi.org/10.1117/12.2527936

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