$P_L=30k$

$P_L=20k$

Problem $3$ Design a rectangular section for the beam,

loads, and $$ value shown. The beam weight is not included

in the loads shown. Show a sketch of the cross section,

including bar sizes, arrangement, and spacing. Assume

concrete weighs $150l\frac{b}{f}{t}^3,f_y=60,000,$ and $f_c^{\text{'}}=4000$

psi.

Use $=\frac{1}{2}{}_{\text{m}\text{a}\text{x}}$