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Re: "It's not in our culture"[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaint(--nospam--at)seaint.org
- Subject: Re: "It's not in our culture"
- From: "sscholl2(--nospam--at)juno.com" <sscholl2(--nospam--at)juno.com>
- Date: Thu, 9 Apr 2009 16:13:16 GMT
I have tried to keep track of the path of seismic design upgrade over the years, going from 0.1W in 1933 to 0.133 in the 1960s to 0.187 to about 0.2-0.5 now, depending on the type of member and materials and geology, etc. But I also recall a seismic meeting in San Francisco in the 1960s in a smoke filled room in which realtors and bankers' lobbyists forced the engineers to only increase seismic factors a small amount - from 0.133 to 0.187 W whereas we all know that seismic forces can be as high as 0.9W.
Stan Scholl, P.E.
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