Prob. 2.2-8. A column in a two-story building is fabricated from square structural tubing having the cross-sectional di- mensions shown in Fig. P2.2-8b. Axial loads PA = 200 kN and Pg 350 kN are applied to the column at levels A and B, as shown in Fig. P2.2-8a. Determine the axial stress σ in segment AB of the column and the axial stress or in segment BC of the column. Neglect the weight of the column itself. PA-200 kN A 150 mm (1) 4₁ = 12 mm 150 mm PR=350 kN (a) B C 1₂ = 15 mm 200 mm 200 mm (b)