05

2EgIg LgRkF

4EgIg

LgRkF

4Egh\ LgRkN J

3EgIg\

LgRkN )

2EgIg LgRkF

EgIg Lg ) RkNRkF

RkN and RkF are the tangent stiffnesses of a semirigid connection at buckling. ASCE Task Committee on Effective Length (1997) provides a detailed discussion of frame stability with PR connection.

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