What is the maximum oversize bolt hole diameter for a base plate subject to
uplift? AISC allows 1-5/16" diameter holes for a 3/4" diameter bolt. This is
larger than the dimension across the flat of a 3/4" diameter bolt of
1-1/8", and would seem to have a significant impact on the capacity of the
connection. Limiting hole diameter to 1/16" oversize seems overly
restrictive for field fit up with anchor bolts. How effective are hardened
washers to transfer upfilt forces?
Paul Franceschi, S.E.