UFC 4-023-03
25 January 2005
As detailed in AISC LRFD 2003, consider multiple limit states for the connections. If a
connection violates one of the limit states 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.
5-3.2
Deformation Limits for Structural Steel.
The Deformation Limits are given in Table 5-3. The definitions for Fully
Restrained and Partially Restrained connections are given in Appendix B. Note that
testing in accordance with Appendix S of AISC 341-02 can be used to verify and
quantify the rotational capacities of connections that are not listed in Appendix B.
5-4
ADDITIONAL DUCTILITY REQUIREMENTS.
For MLOP and HLOP structures, design all perimeter ground floor columns
and load-bearing walls such that the lateral uniform load which defines the shear
capacity is greater than the load associated with the flexural capacity, including
compression membrane effects where appropriate. Methods for calculating the
compression membrane effects can be found in Reinforced Concrete Slabs (Park and
Gamble 1999) and UFC 3-340-01.
5-9
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