SCEC Award Number 16169 View PDF
Proposal Category Workshop Proposal
Proposal Title Organizational Meetings for the SCEC Utilization of Ground-Motion Simulations (UGMS) Committee
Investigator(s)
Name Organization
Thomas Jordan University of Southern California C.B. Crouse AECOM
Other Participants UGMS committee members: Norm Abrahamson (PG&E/UCB), John Anderson (UNR), Bob Bachman (R.E. Bachman Consulting Structural Engineers), Jack Baker (Stanford), Jacobo Bielak (CMU), C.B. Crouse (AECOM) – Chair of Committee, Art Frankel (USGS), Rob Graves (USGS), Ron Hamburger (SGH), Curt Haselton (CSUC), John Hooper (MKA), Marty Hudson (AMEC), Charlie Kircher (Kircher & Associates Marshall Lew (AMEC), Nico Luco (USGS), Farzad Naeim (Farzad Naeim, Inc.) and Paul Somerville (AECOM)
SCEC Priorities 6e SCEC Groups EEII, GMP, GMSV
Report Due Date 03/15/2017 Date Report Submitted 07/07/2017
Project Abstract
 During its May 2016 meeting, the UGMS committee finalized the approach to combine the results from the NGA West2 GMPE’s with those from CyberShake in order to determine MCER response spectra for southern California, per the procedures in the ASCE 7-16 standard. The approach is illustrated in the logic tree shown in Figure 3 of the Crouse et al. (2016) publication attached to the 2016 UGMS report.
Intellectual Merit The UGMS work has taken advantage of the SCEC research on the use of 3-D physics based numerical simulations of ground motion to improve the ground motions used for design of long period structures (e.g., tall buildings, base-isolated buildings, long span bridges)in southern California.
Broader Impacts In 2016 the UGMS broadened its outreach to the Structural Engineers Association of California (SEAOC) and the Structural Engineers Association of Southern California (SEAOSC), which have been promoting the UGMS work to practicing structural engineers.
Exemplary Figure Figure 2. PSV MCER response spectra at PAS, CCP, LADT, and COO sites.
Linked Publications

Add missing publication or edit citation shown. Enter the SCEC project ID to link publication.