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Calculating Sign Foundations
Hi All,
Just wondering if there is a simple formula available for calculating what size concrete foundations are required to support a sign of a certain size?
I have to quote for a modular aluminium monolith sign of approx. 1.3m (w) x 4m (h) x 120mm to be fixed with M16 chemical anchors onto a concrete base of which the top will be approx. 500m above ground level. So I’m trying to establish approx. amount of concrete required.
Thanks
Myles
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3 Replies
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Thanks for that John, but not sure if it’s the same principle is it when not sinking posts into the concrete but rather mounting the sign with a plinth base plate onto the top of a precast concrete slab. Also the fact that the concrete base is required to project upwards of ground level by 500mm. So basically a hole will be excavated & then shuttering built around it to 500mm above ground level.
Myles
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Hi Myles
I would allow for a cubic square metre of concrete per post. That said, whoever is constructing your monolith should be able to best advise.
they should have the correct wind-load calculations for them making the structure and the base cage. there is software for this type of thing but I haven’t found anything simplified for our industry as such.
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