$3.$ A concrete structure must be designed to hoist materials out of a deep trench. The trench is $30"$ across at its widest point. Design a simply supported reinforced concrete beam to support a guide rail and hoist to do the job. Check all ACI code criteria you have learned. REMEMBER: The beam must also support its own self$-$weight. Use rules of thumb for preliminary sizing. Specify beam cross$-$section dimensions and bending & shear reinforcing. Assume the beam is simply supported. Sketch your final design. $(20$ Points$)302$ tons LOADS: Guide rail $-210$ lbs$/$ft Hoist wt$.=1250$ lbs Materials container$=2$ ton $($max$)$ MATERIALS: few $4$ ksi, ty $=60$ ksi Design the following concrete beams for bending and shear. Use all ACI code criteria you have leamed. For full credit you must show all calculations. Your calculations must be presented in a professional manner, and demonstrate good engineering problem solving techniques. Combine all pdfs$.$ Have a summary page in the beginning of your assignment with the required answers and sketches. Also summarize all answers at the completion of each problem on a labeled sketch of the beam cross section. Sketch $($Question $3)$

IF YOU COULD PLEASE SOLVE IN KIPS$-$FT instead of KN$-$M it would be highly appreciated $!$