$9\mathrm{.}2.$ The structure shown in Fig. P$9\mathrm{.}2$ a requires tall slender columns at the left It is fully braced by shear walls on the right. All columns are $400400m$ shown in Fig. P$9\mathrm{.}2$b$,$ and all beams are $600450mm$ with $150mm$ monol floor slab, as in Fig. P$9\mathrm{.}2$c$.$ Trial calculations call for column reinforceme shown. Alternate load analysis indicates the critical condition with colum bent in single curvature, and service loads and moments as follows: dead loads, $P=600kN,M_{\text{i}\text{o}\text{p}}=81kN-m,M_{\text{b}\text{o}\text{c}}=55kN-m$; from li $\frac{2}{3}P=401kN,M_{\text{i}\text{o}\text{p}}=55kN-m,M_{\text{b}\text{o}\text{t}}=36kN-m.$ Material strengths are $f_e^{\text{'}}=28$ and $f_y=420$MPa. Is the proposed column, reinforced as shown, satisfat for this load condition? Use Eq$.(9\mathrm{.}18)$ to calculate $EI$ for the column.

$($a$)$

$($b$)$