(Solved): Problem. A RC Column section w/6-22 mm vertical bars shown is subjected to DL=1420KN Required: (1) ...

Problem. A RC Column section w/6-22 $$\mathrm{mm}$$ vertical bars shown is subjected to $$\mathrm{DL}=1420\mathrm{KN}$$ Required: (1) By Theoretical Method, solve the following: (a) eb \& Pnb @ balance conditions; (b) Pn when e=310mm; (c) Maximum Live Load it can carry; and (2) By ACI Interaction Diagram, solve for (b) \& (c) in requirement (1). Use interpolation if necessary in the Interaction diagram. Use USD-NSCP 2010, $$f{c}^{?}=20.7\mathrm{MPa};fy=413\mathrm{Mpa}$$