A question was raised by a project structural engineer about the NFPA 13 seismic joint detail shown in Fig. A.9.3.3(a), 2016 edition for reference. Does anyone know if this configuration has ever been tested/measured? Has it been verified as an acceptable OMNI-DIRECTIONAL solution? The engineer in question is looking at the detail and in his judgement, it's only a 2D solution. There are lateral and longitudinal movements shown, but not a vertical one. If there are installation or hanger/bracing committee people who can chime in, I'm wondering if this figure has been vetted and that's why it's still in the standard. Bottom line: Is Fig. A.9.3.3(a) equivalent to a listed seismic loop?
Steve Leyton, President Protection Design and Consulting T | 619.255.8964 x 102 | www.protectiondesign.com<http://www.protectiondesign.com/> 2851 Camino Del Rio South | Suite 210 | San Diego, CA 92108 Fire Protection System Design | Consulting | Planning | Training _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
