Ken, 15 says go to 13 so yes it needs bracing if either.
On Mon, Apr 21, 2008 at 12:00 PM, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > Craig, > > Are you sure about the importance factor (Ip) being 1.0? In most of the > work I've seen regarding fire sprinkler systems that value is 1.5. > > Also, what does the latest edition of NFPA-15 say? I'm just jumping to the > conclusion of course that it's a fixed waterspray system. > > Interesting to be sure. > PARSLEY CONSULTING > Ken Wagoner, SET > 760.745.6181 voice > 760.745.0537 fax > [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> e-mail > www.ParsleyConsulting.com <http://www.ParsleyConsulting.com> website > > > > [EMAIL PROTECTED] wrote: > > > I have a tank farm with deluge sprinkler protection on the vessels, > > steel pipe rack and supporting steel. The debate that has arisen is > > whether this type of arrangement really needs to be seismically braced. > > The issue is that it is not a structure, and not occupied. However the > > materials within the tanks are flammable/combustible. > > Now to what degree of seismic resistance the structural steel and tank > > supports are designed to is unknown. > > Is there an exemption for this type of installation? Based on the > > information provided by structural, the occupied buildings would be > > braced, no question there. But for exterior vessels, that is the > > question. > > Soil Site Class = D > > Occ. Class. = I > > Seis. Des. Cat. = D > > Structure Ip = 1.0 but might be argued to be 1.25 (Occ. Class II) > > > > Craig L. Prahl, CET Fire Protection Group > > Mechanical Department > > CH2MHILL > > Lockwood Greene > > 1500 International Drive > > PO Box 491, Spartanburg, SC 29304-0491 > > Direct - 864.599.4102 > > Fax - 864.599.8439 > > [EMAIL PROTECTED] > > http://www.ch2m.com > > _______________________________________________ > > Sprinklerforum mailing list > > [email protected] > > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > > > To Unsubscribe, send an email to:[EMAIL PROTECTED] > > (Put the word unsubscribe in the subject field) > > > > > > > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > To Unsubscribe, send an email to:[EMAIL PROTECTED] > (Put the word unsubscribe in the subject field) > -- Ron Greenman at home.... _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
