N ext G eneration A ttenuation for Central & Eastern US (NGA-East): Introduction
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Yousef Bozorgnia, Ph.D., P.E. PEER Associate Director University of California, Berkeley Next Generation Attenuation for Central & Eastern US (NGA-East): Introduction
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N ext G eneration A ttenuation for Central & Eastern US (NGA-East): Introduction. Yousef Bozorgnia , Ph.D., P.E. PEER Associate Director University of California, Berkeley. NGA- East. Goal: To develop next generation GMPEs for Central & eastern US. Sponsors: NRC, USGS, EPRI, DOE. - PowerPoint PPT Presentation
Transcript of N ext G eneration A ttenuation for Central & Eastern US (NGA-East): Introduction
Yousef Bozorgnia, Ph.D., P.E.
PEER Associate DirectorUniversity of California, Berkeley
Next Generation Attenuation for Central & Eastern US (NGA-East): Introduction
NGA- East
Goal: To develop next generation GMPEs for Central & eastern US.
Sponsors: NRC, USGS, EPRI, DOE
NGA-East Supporting R&D Topics…
Database: Compile a database of recorded
motions from CEUS and other Stable Continental Regions (SCRs)
Data are being processed uniformly, reviewed, and QA’d
PGA, PGV, PGD, and response spectra for periods 0.01 to 10 sec
Source Rupture Characterization
Source-Site Path
Site Effects
Physical Constraints on GMPEs
Ground Motion Simulation
NGA-East Supporting R&D Topics…
GMPEs Develop GMPEs applicable to
magnitude 4-8, distances 0-1000 km
Horizontal and Vertical components
Demonstrate agreement of new models with observed data in CEUS and other SCRs
NGA-East Supporting R&D Topics
Organization of Project
Sigma Meeting TodayTo explore the issues related to aleatory and epistemic uncertainties in GMPEs
To make a list of action items for the short and intermediate terms
This will be followed by Another invitational workshop early next
year with more participants A public workshop to pass the progress and
obtain feedback
Sigma meeting: Agenda
