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Re: IBC 2009/ASCE 7-05 Allowable Stress Increase

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Yes per the ASCE7-05, the allowable stress increase of 1.2 can be used for
load combinations with over strength factor (5,6 and 8) as listed in

Himanshu Goyal

On Thu, Jul 31, 2014 at 5:32 PM, Michel Blangy <mblangy(--nospam--at)>

> I've been chasing my tail with this for a couple days, and am finally
> turning
> to the list. I am looking for interpretations of ASCE 7-05
> Allowable
> Stress Increase for Load Combinations with Overstrength, specifically
> whether
> or not the 1.2 factor may be used with Load Combinations with Overstrength 
> of section I typically design my wood shearwalls using the Basic 
> Load Combinations 16-12, 16-13, and 16-15, including vertical effects, and 
> then check any beams supporting discontinuous shearwalls using,
> applying the 1.2 factor. I think this is wrong though (or is the code
> that's
> screwed up still?)  Somehow I got lost along the way and attempted to
> retrace
> the my steps through the history of IBC 1605.4, which is fascinating and
> all, but at this point I wish I just had an answer as to what the bleep 
> is going on ....  sigh.
> Thanks!

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