Bollard Foundation Design and Detailing
Bollard Foundation Design and Detailing
(OP)
I have a question regarding the design of bollard foundations for an ATM. The ATM is sitting on top of a 2'-6" thick slab that is 9'-0" x 5'-0". Based on the recommended location of the bollards show in the vendor data, the bollards will be located in the slab.
I am thinking that it would be best to have reinforced concrete blocks or piers located underneath each of the bollards and have them tie into the slab. I would make the depth of the block or piers 1/3 the height of the bollard. I don't think have the bollards embedded into the 2'-6" slab is enough.
Is this typical? Is there anything else I need to consider? Open to suggestions and comments.
I am thinking that it would be best to have reinforced concrete blocks or piers located underneath each of the bollards and have them tie into the slab. I would make the depth of the block or piers 1/3 the height of the bollard. I don't think have the bollards embedded into the 2'-6" slab is enough.
Is this typical? Is there anything else I need to consider? Open to suggestions and comments.






RE: Bollard Foundation Design and Detailing
We found some previously tested products online - specifically government designs for terrorism resistance.
For an ATM - I'd suggest just the psych barrier unless the client wants to positively stop moving vehicles from impacting the unit.
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RE: Bollard Foundation Design and Detailing
RE: Bollard Foundation Design and Detailing
From the vendor drawing, it callas for 4" diameter bollards. The vendor drawing does not call out the height of the bollards, but I think 3'-0" would be a good assumption. Using 1/3 of the height, I would get 1'-0" embedment for the psych barrier/bollards into the 2'-6" slab.
This would eliminate the need for piers underneath/attached to the slab.
Does this seem adequate and/or typical?
RE: Bollard Foundation Design and Detailing