Todd M posted:michel posted:In the construction industry when we need to raise a steel column we raise the column with nuts under the column threaded on your anchor stud and then we use structural dry pack which is actually "wet"underneath the plate. works on huge loads for multiple story buildings. You probably can Google the process. We of course put nuts on top as you would usually do. Best of luck.
How funny. I am a land surveyor and we set one of the those nuts on each column at the bottom base plate elevation for cantilever and bridge signs. I should have explained that this installation uses concrete anchor sleeves and bolts. No anchor studs here.
It's the same principle. Just get longer bolts, Put a correct sleeve/ bushing under plate and pack it.