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- To: <seaint(--nospam--at)seaint.org>
- Subject: foundation retrofit
- From: "akester" <akester(--nospam--at)cfl.rr.com>
- Date: Wed, 30 Mar 2005 10:15:11 -0500
Pretty simple one here, I have some ideas but want others:
Home addition built with 8ft tall CMU walls on 4" slab on grade, no TE or WF. Need to add probably a 16" wide by 12" deep TE.
My question is not a design issue, but how does a contractor install the bars and place the concrete without undermining the wall and cracking the slab or worse, causing a collapse? Remember, this is a residential property and not really high end, so no fancy solutions involving long steel beams, cranes, pressure grouting, etc... :)
My other thought was to treat the wall as a series of piers and openings, and only put pad ftgs under the piers. It still would be a means and methods issue of how to install a ftg under a bearing wall, but I feel a lot better removing a small 2' x 2' area under small segments of the ftg.
Thanks in advance.
Andrew Kester, PE
Structural Engineering Consultant
Lake Mary, FL
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