Temporary Wall Support
Temporary Wall Support
(OP)
I have a project in which a client wants to cut an opening in a concrete wall between two existing structures. The wall supports second floor and roof structures, so it carries a pretty good load. The plan is to place a steel support beam in the opening(s), however, I am looking for suggestions on how to temporarily support the wall during demolition and beam installation.
The wall is approx 8" thick.
I was thinking that the wall could be partially cut with a conc. saw on both sides, steel angles inserted and supported with steel posts placed every 2 - 3' (what ever calcs out) which angle away from the base to allow room to demo and ultimately place the beam under the angles.
I am looking for simpler or better ideas.
r2k
The wall is approx 8" thick.
I was thinking that the wall could be partially cut with a conc. saw on both sides, steel angles inserted and supported with steel posts placed every 2 - 3' (what ever calcs out) which angle away from the base to allow room to demo and ultimately place the beam under the angles.
I am looking for simpler or better ideas.
r2k






RE: Temporary Wall Support
I've seen your first method done in the field and it works. You must size the angles for the loading and span. The 2'-3' column spacing seems to close to me, I think you could compute a 4'-6' spacing, depending on loading.
The alternative is to install "needle" beams perpedicular through the wall supported on columns at a spacing of 4'-6'. Again, sized to meet the loading and span.
RE: Temporary Wall Support
The opening is to be 30 or 40 feet dependent upon the clients decision on paying extra for cost of material and/or buildability (heavy steel beam to span that distance).
RE: Temporary Wall Support
Explain this to the architect.
RE: Temporary Wall Support
Does the opening have to be clear span? As flamby notes, it would take a BIG beam and you would also have to deal with support for the beam end reactions. It is possible to do it, but the question to ask your architect is, is it worth the $$$$$?
RE: Temporary Wall Support
r2k
RE: Temporary Wall Support
Be careful you know the original intent of the concrete wall. Could it be there for a diaphragm brace of the building? If so, your new framing would need to take the loading.
JJF
RE: Temporary Wall Support