The author presents a simplified approach for the design of partially prestressed concrete structures. It is shown that partial prestressing, together with supplemental nonprestressed reinforcement, offers a better solution (as compared to fully prestressed sections) with regard to dimensioning and shaping of members, simplification of reinforcement, deflection and crack control, and redistribution of stresses. The proposed design procedure is illustrated with examples of box girder bridges; beams, double tees, and flat slabs for buildings; river tunnels; storage tanks; and other structures. Some of the examples pertain to precast pretensioned members.
