fundation for new (old) silo 1

[Martin Rusten]

Hello
i need to mount a new (old) silo 11 meter high including 3 meter legs (4 of them) diameter of silo is 3.4 meter
when full its about 60 tonn

to mount it i need to make a fundation for it, is there any kind engineer here that could tell me the dimmentions required for that fundation?
it wil be made from concrete.

or is there any calculator for this online somwhere?

thank you all

 

[oldestguy]

The technical name for that engineer in the USA is Geotechnical Engineer. Otherwise a civil engineer specializing in foundations, soil support, or construction would be likely. They may use a computer, but usually test borings that measure soil shear strength, density, etc. are required. Thus the geotechnical engineer uses a test boring contractor or has them on his staff for this purpose. Sometimes laboratory tests on soil samples are required. It would be useful that the engineer has professional engineer license,(PE) issued by his government.

 

[Martin Rusten]

im not located in usa and im replacing another silo that is a bit smaller, thats why i need a new fundament.

and its private nothing official.

so i was asking here to make the best safest solution.

i just need the fundament size in regular ground with rocks.

im most worried of the silo to tip over in winds, its not going ti sink down in the ground no matter what fundation bechause of rocky ground and not far to mountain

 

[Ron]

You will need local engineering help for this. It is not something that can be designed over the internet. As OG noted, first a geotechnical engineer and then a structural engineer. We do not know your soil conditions and do not have information on the actual silo and its dimensions, nor do we know your wind or seismic conditions....all of which will influence your foundation design.

 

[Martin Rusten]

thank you.

 

[oldestguy]

A final note from the USA. Both Ron and I have had many years engineering experience. What we advise is only after seeing what can happen if you do not have experienced help.

 

[fattdad]

if there was a silo there in the past, the ground has seen some of that stress in the past. So, that's a good thing!

Do you know if the ground includes soil then rock? Do you know where the site is located - i.e., next to an ocean, swamp, rock quarry, volcano??

The dead load of a silo is typically trivial. I mean empty it's just a foundation supporting a shell. The failure mode is when filled. That areal load will cause the problems! Often the harvest (if it's crop) will vary from season to season. So, first year, you may not know the performance.

Please recall that the foundation settlements will really depend on whether the silo contents cause the soil to settle. If so, the foundation will go for a ride.

Have fun!

f-d

ípapß gordo ainÆt no madre flaca!