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RE: Shear studs

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AWS D1.1:2000, Section 7.4.6 -Arc Shield Removal. After welding, arc shields
shall be broken free from studs to be embedded in concrete, and, where
practical, from all other studs.

I would assume the ferrule would affect the behavior of the cone beneath the
head of the stud, but can't cite testing.

Bob Shaw
Steel Structures Technology Center
www.steelstructures.com

-----Original Message-----
From: BILL PULYER [mailto:WPULYER(--nospam--at)steelfab-inc.com]
Sent: Wednesday, November 15, 2000 7:47 AM
To: 'SEAINT List'
Subject: Shear studs


Welded shear studs are a commonly used in composite construction.  During
installation ceramic ferrules are used for application and reamain after the
stud is placed.  Is it required that these ferrules need to be removed prior
to pouring the concrete?  What affect does the ferrule have on the
performance if left in place?

William Pulyer PE
Charlotte, NC