I think the difference he is concerned with is from 18 to 48, not 24.
24 is what he comes up with by hand, but the code says 48 works…. 18 is what he’s always understood the min to be
From: Gerard Madden, SE [mailto:gmse4603@gmail.com]
Sent: Thursday, September 03, 2009 4:23 PM
To: seaint@seaint.org
Subject: Re: bar spacing
If this is a track home, yeah, but a one off house, what $ are they really saving going to 24"o.c. versus 18".
Just put the bars in.
-gm
On Thu, Sep 3, 2009 at 12:58 PM, Jeff Hedman <jeff_h@lrpope.com> wrote:
I have a hard time believing parts of the IRC as well. Especially the basement wall stuff. I wouldn’t sleep at night using that or our state amendment basement wall stuff, and now this ICF stuff. The walls are experiencing the same wind, seismic, or soil loads whether they are in commercial construction or not. To me you are just living inside the factor or safety more if you follow the IRC, then designing by IBC. Pretty hard to do when it’s your own license. I don’t do too much stuff without calculation, it’s too hard to trust a table over calculation. Be sure to get your fingers in a bucket of ice, you don’t want them to be sore tomorrow.