Projects : Task Order 09

SUMMARY

Improved Procedures for Selecting and Scaling Earthquake Ground Motions for Performing Time-History Analyses

The primary objective of this task is to develop guidance for selecting, generating, and scaling earthquake ground motions for effective use in performing response history analyses, such that ground motion uncertainties do not dominate the accuracies of these analyses. The project should also identify areas of research that are needed to further improve the guidance that is developed.

Project Director:
Andrew Whittaker, State University of New York at Buffalo

Project Technical Committee:
• Ground motion/risk researcher from the Pacific Earthquake Engineering Research (PEER) Center Ground Motion Selection and Modification (GMSM) Program – Jack Baker, Stanford University, Stanford, California

• Geotechnical researcher from the Pacific Earthquake Engineering Research (PEER) Center Ground Motion Selection and Modification (GMSM) Program – Jonathan Bray, University of California, Berkeley, California

• Ground motion researcher from the Central and Eastern U.S. – Gail Atkinson, University of Western Ontario

• Representative from ASCE 7 Standards Committee on Minimum Design Loads for Buildings and other Structures – Ron Hamburger, SGH, San Francisco, California

• Structural practitioner with extensive experience in conducting nonlinear response history analyses – Damian Grant, ARUP, New York, New York

• Geotechnical practitioner with extensive experience in simulated motions and ground motion selection and scaling – Paul Somerville, URS Corporation, Los Angeles, California

Project Review Panel:
• Engineer/researcher with extensive experience in conducting nonlinear response history analyses – Jack Moehle, University of California, Berkeley

• Geotechnical practitioner with extensive experience in ground motion selection and scaling – John Egan, Geomatrix, Oakland, California

• Risk analysis expert – Robin McGuire, Risk Engineering Inc., Boulder, Colorado

• Representative from ASCE 4 Standards Committee on Seismic Analysis of Safety-Related Nuclear Structures – Robert Kennedy, RPK Structural Mechanics Consulting, Inc., Escondido, California

• Representative from the United States Geological Survey – Nicolas Luco, USGS, Denver, Colorado

• Structural practitioner – Charles Kircher, Kircher & Associates, Palo Alto, California

• Structural practitioner (2) – Michael Wilford, ARUP, San Francisco, California