anchor bolts in drilled piers

huangyhg

anchor bolts in drilled piers
why is there no allowance for the shearing of ties in the concrete breakout strength, in app. d?  if you have a pier or pedastal with shear ties, don't the ties have to shear first before the concrete breaks out.   

the analysis of most of appendix d assumes concrete only,  reinforcement can be used if the concrete fails.  see d.6.2.9.
in aci 05 it only goes to d.6.2.7