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RE: seismic design manual - volume 1 - seaoc

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What is more conservative?  If you place the reinforcing in the center or
the wall, you will end up with more steel by assuming two simple spans.
Secondly, you would need to do a cracked analysis and take into account the
stiffness of each floor if you want a true continuous two span wall.  The
double simple span is not necessarily correct, just more conservative and
significantly easier to calc.

Jake Watson, P.E.
Salt Lake City, UT

-----Original Message-----
From: da [mailto:dadie(--nospam--at)sbcglobal.net]
Sent: Wednesday, September 10, 2003 9:15 PM
To: seaint(--nospam--at)seaint.org
Subject: seismic design manual - volume 1 - seaoc


don't have it in front of me so going from memory...

the single story example showing how to apply the out of plane lateral
seismic forces makes sense to me.  the two story example that immediately
follows confuses me.  they don't specifically show the shear and moment
diagrams (conveniently) but they do show reactions.  these reactions look
like two adjacent simple span beams - right?  shouldn't this model be a
continuous beam with full height continuity?

tia


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