Design an efficient rectangular singly$-$reinforced beam section for mid$-$span. Iterate until

the design strength, $,$ is within approximately $20\%$ of $.$ Provide a drawing of the

section design that clearly shows the location of the longitudinal reinforcement $($you can

assume No$.4$ stirrups are used$).$ Be sure to show the section complies with all relevant

Code requirements $(,,$ bar spacing, clear cover, $,,$ etc.$)$