Problem $3$

Given

$8$#$6$ Longitudinal bars

$$ #$4$ ties @ $6$ o$.$c$.$

$$ f$$c $=3500$ psi

$$ fy $=60$ ksi

$$ Ec $=57,000$f$$c

$$ Es $=29,000$ ksi

$$ dagg $=1$

Determine

$1.$ The maximum axial section strength of the column $(\backslash$Phi Pn$,$max$).$