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RE: FEMA Publications

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It makes me wonder when things get that detailed if we aren't kidding 
ourselves a bit.  Such information for researchers provides good 
information to understand the various earthquake phenomena.  For the 
practicing structural engineer however, even with Performance Based Design 
concepts, it seems like we are trying to determine the forces to a knats 
rear end when the actual certainty in the force levels is not that good.  I 
think it gives people a false sense of security.  We should be teaching our 
young engineering colleagues concepts like redundancy, ductility, tieing 
structures together, load paths and the like.  There should also be 
required studies in accuracy v. precision.

Bill Cain, S.E.
Oakland, CA

Roger Turk wrote:
-----Original Message-----
Yes, there are ***32*** NEHRP Maps, two to a sheet, folded and stacked, 
are ****4-1/4 inches**** high.

Seismic criteria are improving, if you live on the correct side of the 

A. Roger Turk, P.E.(Structural)
Tucson, Arizona