AISC J3.10 Question
AISC J3.10 Question
(OP)
In calculating Lc for use in the equations in AISC section J3.10 (Bearing Strength at Bolt Holes), would one use the nominal bolt hole diameter or the nominal bolt hole diameter plus 1/16"? I have notes from an AISC connection seminar (from 2001) wherein it states that for bearing and tearout calculations, the actual hole diameter is to be used. The seminar speaker was Dr. Tom Murrary. I can't find clear support for this practice in the AISC Specification or its Commentary. Using the nominal bolt hole diameter plus 1/16" would be the conservative approach but I am curious how others handles this.






RE: AISC J3.10 Question
Personally, I'm inclined to take out the extra 1/16".
RE: AISC J3.10 Question
for a 3/4" bolt, std hole is 13/16". But in some calcs one would consider an extra 1/16" for damaged material...or 7/8".
Is this what you are asking about?
RE: AISC J3.10 Question
RE: AISC J3.10 Question
does "nominal" = bolt dia. + 1/16?
I consider nominal hole diameter to be the bolt diameter.
I consider a "standard" hole to be 1/16th over
RE: AISC J3.10 Question
nominal bolt dia for 3/4" bolt = 3/4"
hole diameter with damage for rupture checks = nominal hole + 1/16" = bolt + 1/8"
RE: AISC J3.10 Question
RE: AISC J3.10 Question