base plate with large moment
base plate with large moment
(OP)
i am designing a column base plate with large moment as per aisc design guide -1,
P = 2000 kn
Mu = 5000 kn-m
due to higher moment, i am getting very large base plate dimension to satisfy inequality eqn.
how to reduce it?
regards,
P = 2000 kn
Mu = 5000 kn-m
due to higher moment, i am getting very large base plate dimension to satisfy inequality eqn.
how to reduce it?
regards,






RE: base plate with large moment
adding stiffeners will help reduce the base plate thickness, depending on the arrangement. would recommend attaching a sketch to give a clearer picture
RE: base plate with large moment
guess you need a special base plate structure....not just a plate
best regards
Klaus
RE: base plate with large moment
But better than designing for it is changing your analysis so that the moment is reduced or goes away. Unless you have a cantilever, can you assume a pinned base and throw the moment elsewhere?
RE: base plate with large moment
RE: base plate with large moment
RE: base plate with large moment
BA
RE: base plate with large moment
You may please refer to the wide variety of suggested base plates appropriate for the mentioned range of heavy loading available in the Book titled "Design Of Welded Structures by Omer W. Blodgett" ...
Finally it should be a trade off between fabrication cost versus material cost, as adding stiffeners increases fabrication cost like anything.
Nevertheless, It would be prudent to perform one quick review of your analysis results, especially any feasible alternative which could have a bearing on your final joint reaction for instance adding a few braces here & there etc.
Regards,
SM