Problem $6$

Design concrete foundation wall using the ACl empirical equation to support a set of

precast concrete roof beam $7\text{'}$ on center. The wall height is ${16}^{\text{'}}$ and the bearing width of

each beam is $10".$ The wall is considered to be laterally restrained top and bottom and is

further assumed to be restrained against rotation at the footing; thus $k=0\mathrm{.}8.f^{\text{'}}c=5000$psi, fy $=60,000$ psi. Beam reaction $D=30k,L=18$ kips.