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RE: Factors

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I think those two factors are seismic factors.  Ss (= 2.6 g) is the mapped 
short-period spectral response acceleration.  Maybe those factors are used 
to calculate seismic load for roof top unit curb anchorage.


> From: vicpeng(--nospam--at)
> Date: Fri, 20 Feb 2015 08:51:13 -0800
> Subject: [SEAINT-SEAOSC] Factors
> To: seaint-seaosc(--nospam--at)
> I am reviewing a (US-supplied) roof top unit curb.
> The supplier has given two factors I am not familiar with.
> Ip (importance) = 1.5 and Ss (source) = 2.6
> Importance I understand but in Canada, "1.5" represents "post-disaster"
> The source factor I do not know . with regard to review of non-structural
> elements what is Ss and what do these two factors tell me?
> Hoping to align with Canadian factors . apples with oranges J
> Thanks


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