The second paragraph of 8.6.5.2.1 tells us that if you have a solid continuous obstruction you go back to 8.6.5.1. (so that nixes taking the structural get out of jail card). It 2010 that’s all the standard said so if you had a duct and its top was 5 inches below the deflector, it still sent you back treating its like a beam. In 2013, it was added that it applies when the TOP of the obstructions is level with or above the deflector.
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 Jan 14, 2017, at 4:39 PM, Travis Mack <[email protected]> wrote: > > ll get it fixed. I just wanted to confirm that I couldn't use the "structural > members only" exclusion for this. It seems the general consensus is that it > needs arm overs or sprigs. No exceptions.
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