A column which is a part of an UNBRACED frame, supported as shown, is subjected to the service end couples (bending about the strong axis) and the service axial load as shown. Lateral support is provided only the ends. Neglect the weight of the beam and investigate this member as a beam-column. Effective length factors are
K_(x)=1.0for braced case and
K_(x)=1.2for unbraced case and
K_(y)=1.0Use of Manual/Tables Permitted for any calculations. Use
F_(y)=50ksi. ( 25 points
