California MODEL CALIBRATION OF A BASE-ISOLATED REINFORCED CONCRETE BUILDING

Modelling the behavior of base-isolated buildings is crucial to evaluating their performance, identifying damage mechanisms, and developing retrofit strategies. For the modelling to be of practical value, it is essential that the dynamic behavior of the numerical model resembles that of the real building. However, this can be hard to achieve, especially for large-scale structures. In this study, system identification is performed to identify the dynamic properties of a four-story baseisolated RC building which was tested at E-defense Laboratory (part of Japan’s National Research Institute for Earth Science and Disaster Resilience), and numerical models are developed and calibrated to match the dynamic properties of the real building. 1 Graduate Research Assistant, Sonny Astani Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, CA 90089-2531, USA (email: yutianha@usc.edu) 2 Professor, Sonny Astani Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, CA 90089-2531, USA 3 Formerly, Viterbi Postdoctoral Fellow, Sonny Astani Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, CA 90089-2531, USA 4 Professor, Department of Civil and Environmental Engineering, University of Connecticut, Storrs, CT 06269-2037, USA Yu T, Johnson EA, Brewick PT, Christenson RE. Model Calibration of a Base-isolated Reinforced Concrete Building. Proceedings of the 11 National Conference in Earthquake Engineering, Earthquake Engineering Research Institute, Los Angeles, CA. 2018 Eleventh U.S. National Conference on Earthquake Engineering Integrating Science, Engineering & Policy June 25-29, 2018 Los Angeles, California Model Calibration of a Base-isolated Reinforced Concrete Building T. Yu, E. A. Johnson, P. T. Brewick, and R. E. Christenson