Problem $16\mathrm{.}2.$A$.$ Using concrete with a design strength of $2000$ psi $[13\mathrm{.}8$ MPa$]$ and grade $40$ bars with a yield strength of $40$ksi $[276$MPa, design a wall footing for the following data: wall thickness $=10in.254mm$; dead load on footing $=5000l\frac{b}{f}t[73k\frac{N}{m}]$ and live load $=7000l\frac{b}{f}t[102k\frac{N}{m}]$; and maximum soil pressure $=2000psf[96k\frac{N}{m^2}].$

Problem $16\mathrm{.}2.$B$.$ Same as Problem $16\mathrm{.}2.$A$,$ except wall is $15in.]$ thick, dead load is $6000l\frac{b}{f}t[87\mathrm{.}5k\frac{N}{m}$ and live load is $8000l\frac{b}{f}t[117k\frac{N}{m}],$ and maximum soil pressure is $3000psf[144k\frac{N}{m^2}].$