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Re: Anchor Studs in Concrete in Seismic

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Yes, they are included in the Seismic load combinations. Now, CBC Chapter 19A which is much more restrictive than Chapter 19, gives some exceptions that make a lot of sense, see 1908A.1.47.
I hope that these exceptions are incorporated in the std. part of the CBC.
----- Original Message -----
Sent: Friday, August 15, 2008 10:02 AM
Subject: Anchor Studs in Concrete in Seismic

When designing embed plates with HAS?s in a high seismic zone, in lieu of ductility requirements, ASCE 7-05 allows a design strength 2.5 times the factored forces.  My understanding, if correct, is that the 2.5 factor is applied to the seismic load combinations.  My question is does it also apply to DL and LL within those combinations or just the earthquake values?  Yes, No?



Joe Grill