Although historically it would be defined as one fire area, I believe podium assemblies are being viewed a little differently (I’ll leave it to the code folks to be more specific). Nonetheless, I’ll point out that under IBC 510, you can have HORIZONTAL separation of one structure into multiple buildings.
The closest criteria that I can quickly find is in NFPA 14 for single buildings where the upper floors are smaller (so 3 standpipes through the 10 floor and 2 standpipes for 11th and above). You do two calculations using 1,000 gpm for the 10th floor and 750 gpm for the highest floors (see 7.10.1.2.1.1 and .2). Roland Huggins, PE - Senior VP Engineering American Fire Sprinkler Assn. Dallas, TX http://www.firesprinkler.org <http://www.firesprinkler.org/> Fire Sprinklers Saves Lives > On Jun 28, 2018, at 10:44 AM, James Litvak <[email protected]> wrote: > > I've got a building that is two towers with a parking garage in between. One > tower is 11 floors and is a high rise, with two standpipes. The other tower > is 9 floors and isn't a high rise, with three standpipes. The AHJ has said > that because the towers and garage are all connected, the tower that isn't a > high rise is considered a high rise with respect to standpipe calculations. I > had originally considered my calc to be 750 gpm for the two standpipes in the > high rise, them being automatic wet, and 1000 gpm for the three in the > non-high rise, them being manual wet. Does it make sense that the AHJ has > said it is one building with 5 standpipes, and to do a 1000 gpm calc with the > two standpipes in the high rise and one in the non-high rise (the fire pump > is in the non-high rise)? > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
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