UFC 4-023-03
25 January 2005
Table 5-3 Deformation Limits for Structural Steel
AP for Medium and
AP for Low LOP
High LOP
Rotation,
Rotation,
Component
Degrees
Degrees
()
()
(θ)
(θ)
Beams--Seismic SectionA
20
12
10
6
Beams--Compact SectionA
5
-
3
-
Beams--Non-Compact SectionA
1.2
-
1
-
Plates
40
12
20
6
Columns and Beam-Columns
3
-
2
-
Steel Frame Connections; Fully
Restrained
Welded Beam Flange or
-
2.0
-
1.5
Coverplated (all types)B
Reduced Beam SectionB
-
2.6
-
2
Steel Frame Connections; Partially
Restrained
Limit State governed by rivet
shear or flexural yielding
-
2.0
-
1.5
of plate, angle or T-sectionB
Limit State governed by high
strength bolt shear, tension
-
1.3
-
0.9
failure of rivet or bolt, or tension
failure of plate, angle or T-sectionB
A
As defined in AISC 341-02.
B
See Appendix B.
5-10
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