unequal leg angle design - at a skew
unequal leg angle design - at a skew
(OP)
Does anyone on here have experience with this type of single angle design (please see attachment)? My client is storming reams of aluminum coil stock on this storage rack and the angle serve two purposes, 1) to keep the reams from rolling and 2) to carry the load out to the support channels. My angle design experience has been strictly orthogonal, so this is bit challenging. Looking for any tips, advice, design lit., etc. Chapter F in the AISC doesn't really give much information on the matter. Thank you in advance.






RE: unequal leg angle design - at a skew
I think you also have plenty of additional margin because the span of those angles are so short compared to their leg dimensions.
RE: unequal leg angle design - at a skew
storming = storing, right?
Why unequal leg angles? Equal leg angles would be easier to calculate and would seem to accomplish the same result.
BA
RE: unequal leg angle design - at a skew
The advantage of the unequal leg angles is that they carry a smaller dia. coil at a preferred bearing location/line closer to the vert. axis through the center of the coil. While the equal leg angle will cause the preferred bearing lines to be at about 45̊ on either side of the vert. axis. And, this increases the radial load on the coil to carry its weight. If an aluminum, copper or brass coil, thin enough steel coil too, bears on one of the sharp edges of the angles it will get creased, a number of layers deep. You want the max. dia. variation of the coils to bear on the flat surface of the angle legs. All he has to do is take the load on the angle, and convert it to load components about x-x and y-y axes on the angle and treat it as a combined stress problem on the angle. As for a design improvement, I would bolt a pine 2x6 to the flat bearing faces of the angles, to treat the coil stock even a bit more gently.
RE: unequal leg angle design - at a skew
RE: unequal leg angle design - at a skew
RE: unequal leg angle design - at a skew
This is not like designing a major transfer girder in a high-rise, after all. To me, it is a minor design and can be done quickly, and being conservative won't create a lot of unnecessary tonnage of steel.