design of circular base plates for columns
see entry answer in alike question in civil eng forum.
try looking at references that cover design of base plate and anchor chairs for vessels and stacks. here is one of the better references:
"process equipment design" - brownell and young
i believe that this book is out of print, so if you want me to send an electronic copy of this section please give me your email address.
there is a program to design base plates for cylindrical sections at my website