1. IMPLEMENTATION OF SCEC RESEARCH IN EARTHQUAKE ENGINEERING ONGOING PROJECTS SCEC PROPOSAL TO NSF SCEC 2004 RFP

6. Source and Path Effects Distance and magnitude scaling Footwall/hanging wall Style of faulting Directivity Buried vs. surface faulting Static stress drop (ruptured area) and other (dynamic) stress parameters Other fault properties 3-D basin

7. Simulation of Rock Motion Extrapolation beyond data Use of numerical simulations to guide the extrapolation Rock

8. Final Product (Integration of Individual Research) Attenuation models for spectral acceleration (5% Damped), PGA, PGV, and PGD –Horizontal components (fault normal, fault parallel, and average components) –Shallow crustal earthquakes in CA –Magnitude range: M5 - M8.5 –Distance range: 0 - 200 km –Period range: 0.0 (PGA) - 10 seconds

9. Stakeholders Caltrans PG&E Bay Area Rapid Transit (BART) East Bay Municipal Utility District (EBMUD) Southern California Edison California Department of Water Resources Division of Safety of Dams (DSOD) Federal Energy Regulatory Commission (FERC) U.S. Bureau of Reclamation

10. Improved Intensity Measures Criteria: Efficiency(to reduce dispersion) Sufficiency(incorporate all relevant aspects of earthquake hazard, M-R + ???) Scalar or Vector Intensity Measures IM versus Improved Record Selection Ref: H. Krawinkler

11. Ground Motions Intensity Measure Ref: H. Krawinkler

12. Improved IM …Vector IMs ? S a (T 1 ) S d,inelastic T p (for NF) Duration Ref: H. Krawinkler S a (T 2 … ) PGV or S v (T 1 )

13. Alternative Hazard IM: S a R  Sa Sa(T 1 ) Sa(T * 1 ) Sa(T 1 ) Sa(T * 1 ) IDR max S a (T 1 ) S a R sa  R sa  S a (T 1 ) / S a (T1*) T1

14. Vector Valued Seismic Hazard (SCEC – PEER Collaborative Project) Frequency of simultaneous occurrence of more than one ground motion parameter Current work: 2 parameters: Response spectral acceleration at the fundamental and first higher mode of a building; now extending to more than two parameters Future work: 2 parameters: Period and peak velocity of the rupture directivity pulse

15. Scalar and Vector Engineering Demand Parameters at Van Nuys Hotel

16. IMPLEMENTATION OF SCEC RESEARCH IN EARTHQUAKE ENGINEERING – NSF Proposal for 2004 Task 1. Ground Motion Time Histories for use in Performance-Based Earthquake Engineering Task 2. PEER-Lifelines/SCEC/USGS Next Generation Attenuation (NGA) Program Task 3. Seismic Hazard Analysis Task 4. Ground-Motion and Structural Simulations for Scenario Earthquakes in Los Angeles