Ground Motion Selection & Scaling for Nonlinear Time History Analysis in EE-UQ

Dr. Kuanshi Zhong | October 29, 2021
Recorded ground motions from past earthquake events are commonly used in nonlinear time history analysis to estimate structural responses, which is also an essential step in structural performance evaluation in seismic design. While the recorded ground motions used in analysis need to be selected and scaled so that they could represent the seismic hazard and ground motion characteristics at the building site. This LET will introduce the implementation of ground motion selection and scaling as well as the streamlined workflow of structural analysis in SimCenter EE-UQ application. The available target spectra, scaling methods, and physical constraints (e.g., earthquake magnitude, ground motion duration) in the application will be illustrated along with an example case study investigating duration effects on reinforcing bar fatigue damage in a bridge column.
About the Presenter:
Dr. Kuanshi Zhong is a Postdoctoral Research Fellow at Stanford University and NSF/NHERI SimCenter. He received Ph.D. and Master of Civil and Environmental Engineering from Stanford University and Bachelor of Civil Engineering from Tongji University. His research interests include the behavior and critical failure modes of reinforced concrete structures, surrogate modeling using statistical learning techniques, and methods for assessing and enhancing community resilience to multi-hazards.