Transfer Columns and Slabs
Transfer Columns and Slabs
(OP)
I was reading about staggered trusses in AISC's Steelwise article (see attached), and came across a paragraph regarding column transfers. The author mentions that 3 to 4ft thick transfer slabs are often required.
I have never heard of this and wondered if these thicknesses were to transfer lateral shear into a vertically discontinuous lateral system. I also pictured the columns bearing on a transfer truss, while the lateral forces were resolved with a horizontal transfer truss. is this not the case, typically?
for those in the know, i would appreciate your comments.
Details or articles would be really helpful!
I have never heard of this and wondered if these thicknesses were to transfer lateral shear into a vertically discontinuous lateral system. I also pictured the columns bearing on a transfer truss, while the lateral forces were resolved with a horizontal transfer truss. is this not the case, typically?
for those in the know, i would appreciate your comments.
Details or articles would be really helpful!






RE: Transfer Columns and Slabs
There's also the issue of way of construction to find the maximum load for the "transfer" beam. For if you allow the whole upper frame to be built upon temporary columns, you may then make such upper frame later as a full height vierendeel-like framing (or braced, if allowed), then of course minimizing the required sizes of the beams at the "transfer" level. But this is usually not chosen because brings the shadow of the doubt on how at the moment of putting the whole frame in its definitive way of behaviour what in place will be affected (not that it can't be analyzed).
Respect lateral transfer systems were not critical at the midrise (here, say just 10 to 12 stories above ground) buildings this practice refer. But if significant it is clear they will have to sort the discontinuity either piercing it or by transfer with rigidities of the same order provided in whatever the way.
RE: Transfer Columns and Slabs
As for the parking layout, angled parking would cut the 60' span down to approx 55' or less.
Steel requires fire proofing and, unless well detailed and protected, will exhibit unseemly corrosion in a parking deck.
RE: Transfer Columns and Slabs