Problem $1(30$ Points$)$

Simply supported beam of span length $=18ft$ has Two$-$point load system of magnitude P$.$ Compute the Flexural Moment $($FMn$).$

Cross$-$section Dimension: $b=13",h=18",A_s=6$#$8$ rebar's $($Use $2-$layers for Tension rebar$),$

$A_s^{\text{'}}=2$#$7$ rebar, $d^{\text{'}}=2.$Needto

determine centroid cover.

$f_y=60,000,f_c^{\text{'}}=4000,E_s=$

$29,000$ksi.

Figure $1$: C$/$S of doubly Reinforced beam