Go with as thick a member as you can. All those rules about local
buckling apply. For example, instead of a L4x4x1/4, use an L2.5
x2.5x3/8 and instead of MC10x8.4, use the heaviest 6" or 8" standard
channel, you can get. The lighter members will end up looking like a
krinkle potato chip--not that there is anything wrong with krinkle
potato chips.
You can google Hodgson Custom Rolling for further advice although I am
sure there are other rolling suppliers. If you buy something, then my
brother will buy me a beer.
Gary
Gerard Madden, SE wrote:
> I've got a curved CMU wall with a tight radius (5.5 ft) that I need to
> provide a ledger for metal deck w/ concrete fill (on inside of curve)
>
> The CMU wall continues up above the slab to form a parapet/guardrail
> (it's a landing on an exterior stairwell).
>
> I was thinking that radius-ing an angle would be difficult (to
> maintain flatness) since it's not doubly symmetric, but maybe it's
> done all the time???
>
> What about radius-in a MC10x8.4 with the toes going toward the center
> of the radius?
>
> TIA
>
> --
> -gm
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