Floor Load Distribution
Floor Load Distribution
(OP)
I have a configuration similar to vertical vessel with skirt. My problem is floor load distribution. I need to provide a base that will have sufficient area for load distribution. My problem is to determine how far beyond vessel OD base ring can project? Is there a method to calculate area that I can use based on ring thickness (or vice versa, to determine a thickness based on base ring diameter)?
Thank you
Thank you





RE: Floor Load Distribution
Why read? Reading and hand calc is over-rated, just buy a vessel design software and you're done. :)
RE: Floor Load Distribution
Sorry I didn't answer your original question and that is you can have as wide a base ring as you want to spread the load to the foundation/floor. However, you will need to provide gussets to reinforce your steel base ring because if you don't the ring will only have a certain fraction of its width to be effective in passing the load. You will what I mean when you read the books I reference above or in the AISC handbook. If you don't use gussets then I can assure you that you will have a very thick base ring; which does not make sense. Your choice and your money.
RE: Floor Load Distribution
RE: Floor Load Distribution
As far as I know, there is no design book on this but rather use good engineering. A rule of thumb formula to get started on a thickness I've used in the past is for tanks is:
t = 5.169xSqr(W) where W = load in kg/mm with a limitation that the plate width be less than 610mm. Then I would use Roark & Young's formula for plate in bending to double check the case. Of course, I would then get a Civil Structural Eng to verify.
If your project permits, you should provide a flare on your vessel skirt so that you can enlarge the base ring to properly spread the load. That is the proper thing to do and that is how it is done on the mechanical engineering side most of the time. My opionin only, but I feel that using a bearing plate is a cover your butt solution and Senior guys will see right through it.
You're welcome.
RE: Floor Load Distribution
Thank you for the input.
RE: Floor Load Distribution
RE: Floor Load Distribution
I do not how hard would be to adjust forum to upload a sketch, but that would be great help as it is not always easy to explain a problem.