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Section 2
2-73
2.15 Design per American Cold Formed Steel
Code
General
Provisions of the AISI Specification for the Design of Cold-
Formed Steel Structural Members, 1996 Edition have been
implemented. The program allows design of single (non-
composite) members in tension, compression, bending, shear, as
well as their combinations using the LRFD Method. For flexural
members, the Nominal Section Strength is calculated on the basis
of initiation of yielding in the effective section (Procedure I).
Strength increase from Cold Work of Forming is a user selectable
option.
Cross-Sectional Properties
The user specifies the geometry of the cross-section by choosing
one of the section shape designations from the STAAD Steel
Tables for cold-formed sections, which mirror the Gross Section
Property Tables published in the "Cold- Formed Steel Design
Manual", AISI, 1996 Edition.
The Tables are currently available for the following shapes:
• Channel with Lips
• Channel without Lips
• Angle with Lips
• Angle without Lips
• Z with Lips
• Z without Lips
• Hat
Shape selection may be done using the member property pages of
the graphical user interface (GUI) or by specifying the section