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- Subject: Re: Napa Earthquake
- From: Abolhassan ASTANEH-ASL <astaneh(--nospam--at)berkeley.edu>
- Date: Sat, 20 Sep 2014 13:10:13 -0700
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Hi Bill, You haven't missed much since this really was not a big earthquake. My team of 5 have spent so far 400+ work-hours in the field investigation and an equal hours in the office. We were mainly looking at bridges and other structures as well as buildings, but, buildings did not take much to see. Brides were interesting since even though this quake hardly got much of the structures beyond their elastic limit, two reinforced concrete bridges had very serious structural damage. On September 15th , EERI/PEER had a Briefing on the Napa Quake and presented a summary of what actually happened (disclosure: I did the bridge briefing). Excluding mine, I thought other presenters did an excellent job of gathering information and presenting important items on almost all aspects of this 'moderate" quake. . The video is or will be posted on www.eeri.org. While in the field on Sunday August 24th investigating the damage, I only took one interview call and the interviewer was asking why retrofitted buildings got damaged? I gave an explanation of how you cannot answer such question only few hours after the quake without studying the building and what was retrofit etc and it is a fact that even engineers, who are not really familiar with that particular building, cannot look at a damaged building and say that this was a retrofitted building and the retrofit failed. It will be only speculation. So, after that I gave a few minutes of explanation of Magnitudes and why this earthquake was a "moderate" quake. Best wishes as always. Hassan On Wed, Sep 17, 2014 at 7:49 AM, T. William (Bill) Allen, S.E. < bill(--nospam--at)allendesigns.com> wrote: > After the earthquake, I watched several news reports in which it was cited > that several retrofitted URM buildings were no better off than > non-retrofitted > URMs. > > I was expecting to hear quite a bit from the engineering community but I > haven't. Have I been having too much fun and just missed it or was it > something > else? > > Thank you, > > T. William (Bill) Allen, S.E. (CA 2607) > A L L E N D E S I G N S > Consulting Structural Engineers > 33171 Paseo Cerveza, Suite 221 > San Juan Capistrano, CA 92675 > V (949) 248-8588 * C (949) 374-1536 > www.AllenDesigns.com -- Abolhassan ASTANEH-ASL, Ph.D., P.E., Professor 2013 Minner Faculty Fellow in Engineering Ethics and Social/Professional Responsibility and 2013-14 U.S. Fulbright Senior Research Scholar Department of Civil and Environmental Engineering 781 Davis Hall, MC 1710 University of California, Berkeley, CA 94720-1710, USA Web: www.ce.berkeley.edu/~astaneh Web: www.astaneh.net Phone; (510) 642-4528 ------------------------------------------------------------------------- Post your message to the list by sending it to: SEAINT-SEAOSC(--nospam--at)mail-list.com. The email messages sent to the list will be saved in an archive on the World Wide Web. These archives are located at: http://archive.mail-list.com/SEAINT-SEAOSC To contact the list owner, send your message to: SEAINT-SEAOSC-list-owner(--nospam--at)mail-list.com. Sponsored By: Pacific Structural & Forensic Engineers Group, Inc. (PSFEG) To unsubscribe, switch to/from digest, get on/off vacation, or change your email address, click here. <http://cgi.mail-list.com/u?ln=seaint-seaosc&nm=seaintma%40euken.net>
- Napa Earthquake
- From: T. William (Bill) Allen, S.E.
- Napa Earthquake
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