Column loaded on its web only
Column loaded on its web only
(OP)
A W10x49 x 25' tall column is loaded concentrically but the load is applied only to the column web. The load is 40 kips unfactored. Does the column web need to be analyzed as a slender plate subject to axial load? Or, can it be assumed that the load will find its way into the entire cross section of the column? Thanks.






RE: Column loaded on its web only
RE: Column loaded on its web only
RE: Column loaded on its web only
RE: Column loaded on its web only
The load is applied via a "shoe" for two jacks. The shoe is in the shape of an inverted U. The top of the inverted U bears on the column web. At the bottom of the legs of the U are stiffened seats for the jacks to sit on. One jack on each side of the column web.
RE: Column loaded on its web only
RE: Column loaded on its web only
from your last post, i had a really clear picture in my mind for what you were describing ... only my picture was a beam, with the inverted Us [no, not ewes] being simple supports ?
maybe a pic ??
RE: Column loaded on its web only
Never happens.
Mike Halloran
Pembroke Pines, FL, USA
RE: Column loaded on its web only
I agree, but...
there are some pretty sophisticated jacking systems these days that can get you pretty damn close.
We have used some pancake jacks for very heavy lifts and the things were amazingly accurate.
RE: Column loaded on its web only
instead of two small jacks, maybe one big one ?
is the column braced laterally, so that imbalance between the jacks can be reacted ?
RE: Column loaded on its web only
I wondered the exact same thing but figured there had to be a reason...