"Kern" for Round Footing/ Baseplate
"Kern" for Round Footing/ Baseplate
(OP)
I understand that the way the "kern" is found to be e=B/6 for a rectangular footing is by setting equal P/A = M/S and solving for "e" (where e=M/P)
Can the same be done for a round footing or baseplate?
I am asking because I have a round baseplate with a very large OT moment and low axial load. I am trying to determine home much of the plate is in bearing in order to design the thickness of the plate.
I am coming up with e=1/8d for the kern. d= diameter of plate.
Can the same be done for a round footing or baseplate?
I am asking because I have a round baseplate with a very large OT moment and low axial load. I am trying to determine home much of the plate is in bearing in order to design the thickness of the plate.
I am coming up with e=1/8d for the kern. d= diameter of plate.






RE: "Kern" for Round Footing/ Baseplate
RE: "Kern" for Round Footing/ Baseplate
I guess what I am really after is determining the bearing area on the compression side so that I can accurately determine the anchor tension loads.
RE: "Kern" for Round Footing/ Baseplate
Has a very good method for anchor bolt tension and baseplate design
RE: "Kern" for Round Footing/ Baseplate
RE: "Kern" for Round Footing/ Baseplate
RE: "Kern" for Round Footing/ Baseplate
Below is the betst reference that I know of for the design of circular base plates. This was put together as a reference for monopole towers (used in the communcations industry). But, it assembles and summarizes the approach from a number of different sources (AISC, process industry practice for vertical vessel base plates, et cetera).
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Some of the discussion is for rectangular base plates supporting circular poles or equipment. But, it does get into circular base plates as well.