SCEC Award Number 12058 View PDF
Proposal Category Individual Proposal (Integration and Theory)
Proposal Title Validation of elastic spectral correlations and inelastic spectra from ground motion simulations
Investigator(s)
Name Organization
Jack Baker Stanford University
Other Participants Lynne Burks (PhD student)
SCEC Priorities 6e SCEC Groups GMSV, EEII
Report Due Date 03/15/2013 Date Report Submitted N/A
Project Abstract
 We have performed validation studies using simulated ground motions from the SCEC Broadband platform, and produced a number of new tests of those simulations from an engineering perspective. The categories of study we have pursued include:
1. Computation of elastic spectra correlations, at pairs of spectral periods, within a given motion.
2. Computation of polarization of elastic spectra, as measured by variation in the spectrum at a given period as the horizontal orientation of interest varies.
3. Detection of velocity pulses in near-fault simulations, for comparison with pulses observed from comparable recordings.
4. Computation of dynamic response of a three-dimensional structural model, when subjected to simulated and recorded ground motions with equivalent response spectra.
Intellectual Merit This work helps identify properties of simulated ground motions of engineering interest that may need further validation efforts.
Broader Impacts We are contributing to the education of engineers regarding the state-of-the-art in ground motion simulation, and how this science can benefit engineering practic.
Exemplary Figure Figure 4