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Re: Question on Staad Pro 2006

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I can not help you with your STAAD PRO question but I would assume it should be an easy item to find in their HELP menu.  That aside, Washington State is currently using the 2006 IBC/ASCE 7-05 so you really should not be using ASCE 7-02.  ASCE 7-05 has a complete new and extensive Chapter 15 that covers non-building structures and your boss is right in that ASCE 7-05 Section 15.4.4 requires that you actually calculate your structure period (i.e. you can not use the approximate formula from Section for buildings).

Thomas Hunt, S.E.

"Micayas, Julius" <JMicayas(--nospam--at)>
03/12/2009 02:15 PM
Please respond to seaint
"seaint(--nospam--at)" <seaint(--nospam--at)>
Question on Staad Pro 2006

I got this project (Washington State) that fits on section 9.14 pp.186 of ASCE-7-02 (non building structure). I did a calculation using mathcad for the T value  however, my chief engineer asked me if Staad pro has that capability. I checked on it and there is but  don’t know how to it.
Is anybody out there that can guide me on how to determine a fundamental period of the structure (T) using a STAAD Pro 2006?
Engr. Julius Micayas
P.E. license no.32969
Project Manager/Sr Lead Structural Engineer
River Consulting LLC.
#5 Sanctuary Blvd., Suite 101
Mandeville, Louisiana 70471
Phone - 985-624-1314 (direct)
985 624-1300 (office)
Fax - 985-624-1399
E-mail: jmicayas(--nospam--at)
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