SCEC Community Workshop: SCEC Ground Motion Simulation Validation Workshop
Convener: Nico Luco, Paul Somerville
Dates: January 10, 2011 (10am-5:30pm)
Location: SCEC Boardroom, University of Southern California
SUMMARY: SCEC is establishing a Technical Activity Group (TAG) focused on Ground Motion Simulation Validation (GMSV) in order to develop and implement testing/rating methodologies via collaboration between ground motion modelers and engineering users. The main purpose of the planning workshop will be to enumerate and prioritize work that should be conducted within the GSMV TAG. SCEC will only be able to fund relatively few projects per year that contribute to the GMSV TAG, so prioritization is particularly important. General ideas for work that could be conducted within the GMSV TAG include:
- Research on important ground motion or structural (e.g., building) response parameters and statistics that should be used in comparing simulated versus recorded seismograms.
- Comparisons of simulated ground motions with empirical ground motion prediction equations, in terms of both median predictions and the variability about them. Note that simulations for the CyberShake Project aim to accurately represent both the median and variability of ground motions.
- Compilation of representative nonlinear structural models of different types for which the responses to simulated versus recorded seismograms can be compared.
- Comprehensive analysis and documentation of the sensitivity of simulated ground motions to model input parameters and their interactions and uncertainties.
- Development of testing and/or rating metrics for simulated ground motions, perhaps considering testing concepts from the Collaboratory for the Study of Earthquake Predictability.
- Implementation of testing/rating methodologies into the SCEC Broadband Strong Motion Simulation Platform.
AGENDA:
10:00 – 10:05 | Welcome and GMSV Technical Activity Group Background | T. Jordan |
10:05 – 10:10 | Overview of Agenda | N. Luco |
What Ground Motion Simulations/Models to Validate? | ||
10:15 – 10:30 | SCEC Broadband Simulation Platform and Cybershake | R. Graves |
10:30 – 10:45 | Puente Hills, ShakeOut, 1906, and Hayward Simulations | B. Aagaard |
10:45 – 11:00 | Summary of Other GM Simulation Models | P. Somerville / Y. Zeng |
11:00 – 11:25 | Discussion | All |
What Validation Methodologies? What Engineering Applications? | ||
11:30 – 11:45 | Goodness-of-Fit Criteria | K. Olsen |
11:45 – 12:00 | Elastic and Inelastic Response Spectra Properties | J. Baker |
12:00 – 12:15 | Spatial Correlation of Spectral Accelerations | P. Bazzurro / N. Jayaram |
12:15 – 13:15 | Lunch | |
13:15 – 13:30 | Attenuation of Spectral Accelerations | J. Stewart |
13:30 – 13:45 | Tall Building Response | N. Jayaram |
13:45 – 14:00 | Summary of Other Validation Methodologies/Applications | N. Luco |
14:00 – 14:25 | Discussion | All |
Initial Priorities for GMSV Technical Activity Group (TAG)? | ||
14:30 – 14:50 | What Engineering Applications? | All |
14:50 – 15:10 | What Validation Methodologies? | All |
15:10 – 15:30 | What Ground Motion Simulations/Models to Validate? | All |
15:30 – 15:50 | Break | |
15:50 – 16:10 | Archiving/Distribution of GM Simulations? | All |
16:10 – 16:30 | Implementation of Validation Methodologies? | All |
16:30 – 16:50 | TAG Organization/Approach? | All |
16:50 – 17:10 | Summary of Priorities | P. Somerville / N. Luco |
17:30 | Adjourn |