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RE: A question about UBC seismic

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UBC does not explicitly state any requirements for Seismic Zone 0 - it
basically exempts Zone 0 from seismic analysis solely by its lack of stated
requirements for Zone 0.  (Not a good way to write a code!)  Thus, I do not
perform any seismic analyses for structures in UBC Zone 0.  (BOCA does have
some minimum requirements for ties/ anchorage for minimal seismic forces
even for its lowest Seismic Performance Category A.)
 From: Scott Maxwell [mailto:SMAXWELL(--nospam--at)]
Subject: A question about UBC seismic

This is in reference to the 1997 UBC.  If you are in seismic zone 0 (zero),
do you have to do any seismic lateral load analysis for the entire building
(i.e. simplified static lateral force procedure or static lateral force
procedure)?  I have read through the code and see nothing that says that no
calculations are necessary, but then there is no seismic zone factor (Z)
listed in table 16-I for a seismic zone of 0.