AISC requirement for fully tensioned bolts
AISC requirement for fully tensioned bolts
(OP)
Section J1-12 of the AISC specification requires the use of fully-tensioned high strength bolts for specific connections.
What is the basis for this requirement? It appears to have originally noted in the 6th edition of the Manual of Steel Construction and been carried through each subsequent edition.
Please advise if there is any research or analysis to substantiate the need to fully tension these bolts.
Thanks
What is the basis for this requirement? It appears to have originally noted in the 6th edition of the Manual of Steel Construction and been carried through each subsequent edition.
Please advise if there is any research or analysis to substantiate the need to fully tension these bolts.
Thanks





RE: AISC requirement for fully tensioned bolts
RE: AISC requirement for fully tensioned bolts
RE: AISC requirement for fully tensioned bolts
One past ACI president said that in revisions if the elaborating parties knew not why something was in the code better leave the thing in, for it was placed in the past in the code to prevent some problems known to occur. To me, more impact than fatigue.
RE: AISC requirement for fully tensioned bolts
RE: AISC requirement for fully tensioned bolts
RE: AISC requirement for fully tensioned bolts
Then, I was referring to wind as one main source of dynamic solicitation...all dynamic ones concurr in the ability to help at least to loosen the bolts, then produce unaccounted for or unwanted solicitations.
It is natural that the less stringent snug tight-...-fully tensioned-slip critical bolting be used, for economy so demands. There are variegate criteria in other codes other thing that AISC demand respect bolts for even same structures, and even wider must be the range of engineering judgements about.
I frankly doubt that nor AISC nor anyone can prove that for any of the solutions something occurs at 125 ft tall buildings that can not occur in a 100 ft tall building, I meaning here that of course such clause is to me a conventional one aiming to deliver proper -in the thought of the code elaborators- safety standard to the over 125 ft tall structures.
RE: AISC requirement for fully tensioned bolts