You can download "Seismic Behaviour and Design of Gusset Plates" by Abholhassan Astaneh-Asl from AISC's website: http://www.aisc.org/engineering.asp?ar=17&co=44
It has a very comprehensive and up-to-date description of gusset plate design, including discussion of the "Whitmore section".
Gunnar Hafsteinn Isleifsson
From: Sherman, William [mailto:ShermanWC(--nospam--at)cdm.com]
Sent: Thursday, February 01, 2001 20:37
To: SeaInt Listserver (E-mail)
Subject: Steel gusset plate design
Can anyone suggest a good reference for design of a steel gusset plate for a
AISC Seismic Provisions for Structural Steel Buildings Section 14.3d states
that "The design of gusset plates shall include consideration of buckling."
AISC Volume II Connections, Example 19 (ASD) on page 7-138 calculates a
buckling capacity of the gusset plate using "the length of the Whitmore
section" - but no reference or explanation is given for how to determine the
Whitmore section. LRFD Volume II Connections on page 11-27 states
"Additionally, the gusset must be checked on the Whitmore Section for
yielding and for column buckling under compressive brace loads." - but no
reference is given. I've looked thru a number of steel design references but
cannot find anything on the "Whitmore section" nor a description of how to
check buckling due to compressive brace loads.
William C. Sherman
Camp Dresser & McKee, Inc.