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Internet back to front these days.  Got your reply.  Thanks

-----Original Message-----
From: seaint-seaosc(--nospam--at) [mailto:seaint-seaosc(--nospam--at)] On 
Behalf Of Bill Polhemus Sent: May-09-14 3:02 PM
To: seaint-seaosc(--nospam--at)
Subject: Re: [SEAINT-SEAOSC] SMACNA Manual

Check your email.

William L. Polhemus, Jr. P.E.


> On May 9, 2014, at 4:39 PM, "Thor Tandy" <vicpeng(--nospam--at)> wrote:
> Hi
> I'm looking for the "Ip" factor for ducting seismic load calcs.  We
> don't have that factor here unless it's an importance factor but it is
> in ASCE-7 to which the SMANCNA manual pledges loyalty.
> I don't have a copy of ASCE-7 so would a kind soul, pretty please, be
> able to send me the appropriate clauses etc for ducting calcs?
> Thor A. Tandy P.Eng, C.Eng, Struct.Eng, MIStructE, FEC Victoria, BC

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