Learning objectives
To present basic concepts and tools for structural design of reinforced concrete members on the basis of methods proposed in the Eurocode 2 and in the recent technical literature
Prerequisites
Scienza delle Costruzioni, Tecnica delle Costruzioni
Course unit content
<br /> <br />Mechanical properties. Concrete: compressie and tensilestrenght, modulus of elasticity, combined stress behavior. Steel reinforcement: monotonic stress-strain law, yield stress, bond characteristics.<br />Design methods. Allowable Stress Design, Ultimate Strenght Design and Limit States Design. Characteristic and design actions, partial safety factor, load combinations<br />USL for flexure and axial load. Strain diagram at ultimate limite state. Ultimate tensile and compression axial load. Members subjected to flexure. M-N interaction diagrams. Biaxial bending and axial force. <br />USL for shear. Member not requiring shear reinforcement, standard method, variable strut inclination method. Dimensioning of web reinforcement and detals.<br />USL for torsion. Behaviour of solid and thin-walled cross-section, variable angle truss mode, combined shear and torsion.<br />Serviceability limit states. Control of stress. Cracking axial load and bending moment. Stabilized cracking and crack spacing. Tension stiffening. Control of cracking and evaluation of crack width. Bending moment-curvature diagram, checking deflection.<br />Detailing of reinforcement. Spacing bars, anchorage of reinforcement, laps and mechanical couplers. Bundled bars.<br />Detailing of members. Minumum reinforcement, details of anchorage, regions with discontinuity in geometry and action. Columns, beams, slabs, walls, deep beams, footings.
Bibliography
<br />- Documentation provided by the teacher<br />- R. Walther , M. Miehlbradt Progettare in calcestruzzo armato , Milano, Hoepli.<br />- A. Migliacci, F. Mola, Progetto agli stati limite delle strutture in cemento armato , Milano, Masson, 1996. <br />- R. Calzona, C. Cestelli Guidi. “Il calcolo del C.A.”. Hoepli Editore, Milano<br />- G. Toniolo. “Cemento armato. Calcolo agli stati limite”. Masson Editore
