Next Generation Attenuation (NGA) Relationships Workshop - 2006

Monday, September 25

• 9:00 AM - Welcome and Overview: Mark Petersen
• 9:20 AM - Charge to Workshop Participants: Rob Wesson
• 9:30 AM - NGA Developer Presentations
  • Ken Campbell and Yousef Bozorgnia
  • Brian Chiou and Bob Youngs
  • Dave Boore and Gail Atkinson
  • Norm Abrahamson and Walt Silva
  • I.M. Idriss
• 12:00 Noon - Lunch
• 1:00 PM - Potential User Reactions
  • Topic 1 - Uncertainty
  • Rob Graves - Potential Bias in Recorded Ground Motions
  • Steve Harmsen - Comparisons with Previous Attenuation Relations
  • Mike Reichle
  • Bob Youngs

  Topic 2 - Directivity

  • Jennie Watson-Lamprey
  • Paul Spudich

  Topic 3 - Soils

  • Tianqing Cao - Soil Amplification

  Topic 4 - Brief Discussion of Approaches to Weighting

  • Mark Petersen

  Topic 5 - Building Code Concerns

  • Possible building code spokesperson

  Topic 6 - Other Concerns
• 4:00 PM - Initial Reactions of Workshop Participants
• 5:30 PM - Response of Developers
• 6:30 PM - Close

Tuesday September 26

• 9:00 AM - Presentations of Reactions/Recommendations by Workshop Participants
• 11:00 AM - Discussion
• 12:00 Noon - Lunch
• 1:00 PM - Discussion
• 2:00 PM - Preparation of written recommendations by Workshop Participants on the use of NGA in the revision of National Hazards Maps
• 5:00 PM - Close