huangyhg

anchor bolts...do i need them.
hey;
is it stated any where in a code that a structure must be anchored down, specifically, anchored with anchor bolts to a foundation? i have a small shack (40ft long x 12ft wide x 12ft high, approximatly 41,000 lbs heavy.). do i need to anchor it to the foundation per any codes in canada even if wind loads cannot move it. there will be no issue for uplift since wind can not get underneath the shack.
thanks,
m.
what stops it sliding horizontally
how do they erect the columns with no anchor bolts?
it can still tip over. it is like pushing a box, you can still have upflift when it rotates.
never, but never question engineer's judgement
wind doesn't have to get underneath to lift. suction can do the job. but if your "shack" truly weighs 41000 pounds, that is about 85 psf, so it shouldn't blow away.
jmho:
why would you want to be the guy who goes out on the limb? a few well place anchor bolts would be of neglible cost, and would provide a lot of piece of mind.
also, keep in mind, if there is a problem, it might be hard to prove that you followed a 'standard of care' consistant with what other engineers would do, as i believe most engineers would put in some anchor bolts.
jmho.
not being an american, but what about osha? iirc, there was a requirement about 4 bolts and a minimal load on top.
mike
i agree with the others.
why take the risk?
mark,
note that i am not "the others". if your structure is as heavy as you say it is, it doesn't need to be anchored.
are you a structural engineer?
ucfse,
to whom is your question directed?
mark, the op.

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