Night and day. A seismic separation is two completely independent structural assemblies built to within 4-8" of each other. The gap between them is masked at the walls/floors/ceilings but it's like two completely separate buildings. An expansion joint is just a place in a sub-assembly, such as a concrete slab or exterior stucco soffit, were a gap is left to allow expansion and contraction without cracking.
SL -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Todd Williams Sent: Wednesday, October 22, 2014 9:21 AM To: [email protected] Subject: Re: Expansion Joint vs. Seismic Expansion Joint Structurally, what is the difference between an expansion joint and a seismic separation? Todd G Williams, PE Fire Protection Design/Consulting Stonington, CT 860-535-2080 www.fpdc.com > On Oct 22, 2014, at 11:45 AM, Jamie Seidl <[email protected]> wrote: > > Thanks Roland, I will keep that in mind for future projects. > Jamie Seidl > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler .org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler .org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
