I have a triangular base plate (for a 10-ft pylon) with 3 anchor bolts at 2-3/4" embedment on an exiting slab. We just found out that because of rebars and conduits in the slab, we can't have the required 2-3/4" embedment at all 3 locations. One of the anchors will have to have a 1-1/2" embedment. Hilti does not have data on such shallow embedment. How do I analyze since no Hilti data for 1 anchor? Is embedment smaller than the Hilti specified data even recommended? Any recommendations, suggestions or solutions?
Hi Nelly,
Unfortunately, Hilti does not have any guidance regarding an anchor installed at a lower embedment depth than the specified minimum. You could use engineering judgement or on-site testing to account for variability in performance.
Hilti does have drop-in anchors that have shallow minimum embedments. Please note, there are other considerations (installation orientation, design method, etc) that must be taken into consideration in order to use these anchors.
Regards,
Ashley