Draw moment and shear diagrams for the frame structure shown below.

Partial answers: (1) at A, shear = VAB= 20 k, moment = MAB = 120 k-ft (bottom in compression); (2) at D, shear (left)= VDC = 10 k, moment: MDc = 40 k-ft (top in compression), MDF = 80 k-ft (right side in compression).