To study and understand the philosophy and the basic principles and design requirements of prestressed concrete, the methods and the materials of prestressing, practical applications and technical requirements, and to be able to analyze and design statically determinate and indeterminate members in bending for the serviceability and ultimate limit states.
Principles and basic philosophy of prestressing. Practical applications. Methods and concepts applied to explain and analyze the basic behavior and the stresses induced in a prestressed section. Methods of prestressing, classification and types of prestressed structures. Design principles, limit states, design loads. Materials and material properties, permissible stresses. Prestressing and post tensioning. Prestress losses. Analysis if section in flexure. Moment-curvature analysis. Comparison and contrast between ordinary reinforced concrete and prestressed concrete section. Relevant benefits of presstressed and ordinary reinforced concrete arising from sectional behavior. Analysis of determinate prestressed members. Straight and draped tendons, parabolic tendons. Graphical representation of prestress force and eccentricity. Design of prestress for flexure for the serviceability and ultimate limit states. Deflection calculations. Shear design and design of end block. Design of additional regular reinforcement. Analysis of indeterminate flexural members. Secondary indeterminate moments and shears. Compression C-line. Load balancing in determinate and indeterminate members. Equivalent prestress loads. Linear transformation of tendons and concordant cables.
