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AISI
Publishes Direct Strength Method Design Guide
 On
September 18, AISI announced that it has published the Direct
Strength Method Design Guide, which offers an innovative
new approach to the design of cold-formed steel members. Benjamin
Schafer, Ph.D., who developed the Direct Strength Method,
wrote the guide.
"The
Direct Strength Method will redefine the way that engineers
design with cold-formed steel," said Delbert F. Boring,
AISI's vice president of construction market development.
"Previously, there were no provisions for designing cold-formed
members with complex cross-sections without performing tests.
The Direct Strength Method considers elastic buckling behaviors
and enables engineers to predict strength for virtually any
configuration of prismatic cold-formed steel members. This
method will significantly improve the design of cold-formed
steel members."
The guide
provides practical and detailed instruction on the use of
the Direct Strength Method. It includes a tutorial to help
engineers interpret elastic buckling analysis results, and
provides prescriptive guidelines and examples for developing
beam and column charts. It also includes extensive design
examples covering 14 different cold-formed steel cross-sections,
under a variety of different loading and boundary conditions,
which allow engineers to directly compare results between
the Direct Strength Method and conventional design. The guide
also provides instruction on how to handle unique situations
in the elastic buckling analysis of cold-formed steel members.
The Direct
Strength Method Design Guide is available in both print
and electronic formats and can be purchased on AISI's e-store
at www.steel.org. Four
recommended companion resources are also available via the
AISI e-store:
- Supplement
2004 to the North American Specification for the Design
of Cold-Formed Steel Structural Members, 2001 Edition,
- North
American Specification for the Design of Cold-Formed Steel
Structural Members, 2001 Edition,
- AISI
Cold-Formed Steel Design Manual, 2002 Edition, and
- Finite
Strip Method Software.
For more
information, contact Helen
Chen.
For
additional articles in this issue, click here
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