Shims under a tall vertical vessel

[cooksumrice]

Hi,

I have a 180 foot stack, with total vertical load of 350 kips. There is a 10 inch grout circle around the anchor bolts and the vessel is 15 feet in diameter. My question is how to design the shim plates to level it. Do I put them midspan of the bolts or on each side of the bolt?

Thanks,

 

[BAretired]

Would leveling nuts be a better choice?

BA

 

[racookpe1978]

How many anchor bolts do you propose using?

What are your seismic and wind (hurricane) limits/requirements?

 

[JStephen]

Check concrete bearing under the shims if you haven't, you may need more of them than you think.
If I located them, I'd probably put them near the anchor bolts.

 

[cooksumrice]

I cant use leveling nuts since they only want 1.5 inches of grout. There will be 24 anchor bolts. Seismic shear is 10 kips with 6000 kip ft moment. Wind has 70 kips shear with 9000 kip ft moment

 

[rjenyoy12]

Install the levelling plates/shim plates placed near the anchor bolts but not for each bolts. Also, check concrete bearing under the plates if the number of these suffice using erection load of the vessel/stack.