It would be good to get a correlation between using the FEA to the assumption of perfectly rigid plate, is it 10%?. Using proof stress of 1.1 x ULS load, saw that in the anchor bolt guidance. I have also specified a pullout test load on of 3% of the total number just in case. It appears that the general consensus is that the Hilti method is reliable provided the inputs are correct. RE: is hilti anchor bolts capacity software reliable? msquared48 (Structural) 27 Jan 16 I have set up a meet with Hilti to discuss my concerns. This is fine for most cases, but I have had to deal with some unique/high load cases in which I needed to model my baseplate in FEA in order to determine the loads on the anchor bolts. Hilti does a very good job of testing their products, and you can contact them if you would like these reports as I did.Īs far as how the loads are distributed to the anchor bolts, Hilti assumes a perfectly rigid baseplate. I was able to reconcile this with the fact, that ACI states that other values may be used if certain tests have been completed. I have checked their anchor bolt (epoxy and mechanical) capacities to my hand checks using ACI Appendiz D, and there were situations where they were using higher modification factors yielding a higher capacity than what I had calculated. I agree that Hilti is very helpful, you should be able to address any concerns with them.Ī couple of findings from my limited experience:
