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Re[2]: Pretensioning Of Anchor Bolts

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     As the person who started the thread on the pretensioning of anchor 
     bolts, I have been very interested in all the comments, especially 
     those by Harold and Charlie, who have grasped the reason for raising 
     the issue in the first place.
     The petrochemical industry (and others) have used pretensioning of 
     anchor bolts for many "nonbuilding" strcutures for years.  In fact in 
     the recently published "Anchor Bolt Design For Petrochemical 
     Facilities", 1997, ASCE uses 5 pages to talk about pretensioning of 
     anchor bolt procedures, including applications, methods, and 
     tightening sequences.  That is why I was curious about another 
     reputable engineering organization, AISC recommending against it in 
     the LRFD Commentary.
     As a member of both AISC and ASCE (as well as SEAOSC and EERI), I am 
     trying to resolve the conflicting viewpoints.
     Rick Drake, SE
     Fluor Daniel, Inc.