Select #$3$ stirrups for the beam shown below, for which $w_D=3\mathrm{.}4ki\frac{p}{f}t,$ including its own weight, and $w_L=5\mathrm{.}6ki\frac{p}{f}t.$ Place the live load to produce maximum shear at the beam ends and at the center line. Determine where to increase the spacing to twice the spacing close to the supports, or to the maximum spacing allowed. Sketch your final stirrup design indicating your bar selection and proper distances and spacing. Do all necessary checks to achieve a good design. Use $f_c^{\text{'}}=4\mathrm{.}8$ ksi and $f_y=60$ ksi.