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RE: House Leveling[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: <seaint(--nospam--at)seaint.org>
- Subject: RE: House Leveling
- From: "Donald Bruckman" <bruckmandesign(--nospam--at)verizon.net>
- Date: Tue, 01 Apr 2008 12:40:54 -0700
I actually raised a building up in the air with a similar method, cribbed it and then built a new CMU and concrete ground floor underneath it to house an H-2 occupancy. The day they raised the building up was fun to watch. It was all done pneumatically with a system similar to what Gerald describes, except the existing building was a slab on grade so the company cut off the anchor bolts and raised it using the what amounted to 4x clamps bolted together on either side of the bearing walls supported with the WFs that blew through the walls under the clamps and spanned the width of the building various intervals . The jacks were all interconnected and keep the thing level as it went. Up….up….up the dang thing went, with guys adding cribbing as it went. Took about 3 or 4 hours. This was no average GC company we had doing it, though. They were building movers.
From: Gerard Madden,
The way I've seen it done
is for a contractor to slip wide flange beams to the underside of the lower
floor framing inserted from each end at some regular spacing along the
longitudinal side of the house (WF span the short direction of the house). Then
they either provide interior supports for jacks (if they can get in there) or
create a moment splice in the beams they insert from either end and jack only
from outside the building. These are for houses with crawlspaces or basements.
On Tue, Apr 1, 2008 at 11:23 AM, Gaines, David <David.Gaines(--nospam--at)hdrinc.com> wrote:
As a highly qualified, well educated professional engineer you probably should not recommend means and methods of construction. I know a contractor or two who may be qualified to do the job, but I wouldn't stick my neck out to tell them how it's done.
If you do find out how this is done and what to recommend, I'd be interested in hearing it. I need to level the floors in my old Craftsman home too.
Dave Gaines, P.E.
Structural Project Engineer
Jerry Coombs wrote:
Yes. A lot a variables. What sort of piers in what type of soil. In stable circumstances it can be as simple as shims, but some types of houses need more "gentle" treatment. One needs to know exacty *why* it's unlevel first.
I'm specifically interested in the "means and methods"
typically used in the "jacking" process, rather than the finished
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