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RE: seaint Digest for 14 Jun 2003

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Please see AISC, Connections, Volume II, page C-1. There is a definition for
eccentricity "e" and a definition for "supports". I hope that will help.

Regards,

IGOR KHARITONOFF, SE
DES Architects + Engineers 
399 Bradford Street 
Redwood City, CA 94063 
T: 650.364.6453 ext. 433 
F: 650.364.2618 
ikharitonoff(--nospam--at)des-ae.com 
www.des-ae.com 



-----Original Message-----
From: admin [mailto:admin(--nospam--at)seausa.org]
Sent: Sunday, June 15, 2003 12:00 AM
To: ikharitonoff(--nospam--at)des-ae.com
Subject: seaint Digest for 14 Jun 2003



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                       seaint Digest for 14 Jun 2003

Topics covered in this issue include:

   1: Eccentricity in Single plate shear connections.
             by G Vishwanath <gvshwnth(--nospam--at)yahoo.com>



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From: G Vishwanath <gvshwnth(--nospam--at)yahoo.com>
Subject: Eccentricity in Single plate shear connections.
To: seaint(--nospam--at)seaint.org

Consider a Steel beam connected to the flange or web
of a column using a single shear plate.

While determining the number of bolts required, the
eccentricity must be taken into account.
This is understandable.

I would like to believe the eccentricity must be
measured between the bolt line and the weld line.
This would normally be about 2 1/2 " or thereabouts.

But the Aisc Ninth edition Vol I in the chapter on
Single plate shear Connections, instructs us to
consider eccentricity  based on the number of rows of
bolts. (n x 1 inches) (See page 4-52)

What has the number of rows of bolts got to do with
eccentricity?

In deep beams we may provide 9 or 10 rows of bolts.
Must we consider 9" or 10" eccentricity ? Even if the
shear plate is only about 4" wide?

Any opinions or advice is welcome.
Charlie, are you there?

Regards
G Vishwanath




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