UFC 4-023-03
25 January 2005
8-3.1.2
Combined Axial and Bending Resistance of Cold-Formed Steel.
The acceptability criteria for elements undergoing combined axial and
bending loads is based on the interaction equations in Chapter C5 of
AISI/COS/NASPEC 2001, using the appropriate strength reduction factor Φ and over-
strength factor Ω. If the element violates the criteria, remove the element and
redistribute the loads associated with the element per Section 3-2.4.3.
8-3.1.3
Shear Resistance of Cold-Formed Steel.
The acceptability criteria for shear is based on the shear design strength of
the cross-section, per Chapter C3 of AISI/COS/NASPEC 2001, using the appropriate
strength reduction factor Φ and over-strength factor Ω. If the element violates the
criteria, remove the element and redistribute the loads associated with the element per
Section 3-2.4.3.
8-3.1.4
Connections.
Calculate design strengths for connections per AISI/COS/NASPEC 2001,
using the appropriate strength reduction factor Φ and over-strength factor Ω. If the
connection violates the criteria, remove it from the model. If both connections at the
ends of an element fail, remove the element and redistribute the loads associated with
the element per Section 3-2.4.3
8-3.2
Deformation Limits for Cold-Formed Steel.
The Deformation Limits are given in Table 8-3. Note that Table 8-3 does not
contain deformation limits for connections; thus, the deformation limits are applied only
to the structural elements.
8-7
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