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Re: Enlarging a footing[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: <seaint(--nospam--at)seaint.org>
- Subject: Re: Enlarging a footing
- From: "Seth W. Cutler" <seth(--nospam--at)rlmorrisonengr.com>
- Date: Mon, 08 Sep 2003 14:14:45 -0700
This is what we've done in the past. We typically drop it the add'l 6" and call out a 3" projection under the existing. Normally, this isn't an issue getting the add'l 1-1/2" because the live load isn't applied while this is going on. There for reduced bearing area required. And we still epoxy the horizontal dowels into the existing.
At 01:36 PM 9/8/2003, you wrote:
Instead of developing shear into the sides of the existing footing, how about making the new footings a few inches deeper [say 6"] than the existing, with a small continuous projection [say 1-1/2"] under the edges of the existing. You would still need dowels into or through the existing footing to develop the moment due to the extension, but the surface preparation on the sides could be avoided.
South San Gabriel, CA
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