Advances in Structural Engineering
Complementi di Tecnica delle Costruzioni
Teachers: Fabrizio Paolacci
The course aims at providing students additional knowledge with respect to what already acquired in previous courses. Emphasis is paid on structures that require an adequate specialization: prestressed concrete structures and composite steel-concrete. The student will learn the theoretical and analytical-numerical tools for the design and testing of such a structures, with reference to the current national code and Eurocodes. Moreover, an introduction to design methods for D-regions will be provided. To complete the learning activity the analysis of framed steel and r.c. structures will be treated as well as the design of horizontal bracing systems.
PRESTRESSED REINFORCED CONCRETE STRUCTURES: technology and prestressing methods, elastic calculus of the tensions in a p.r.c beam, ultimate strength of a p.r.c beam. Dimensioning of p.r.c sections, designing of the p.r.c. sections for full or limited prestressing level, the cables positioning, Resultant cable, Guyon fuse, equivalent load system, calculus of the hyperstatic reactions due to prestressing, c-line determination, Guyon theorem and concordant cable, anchorage of the prestressing forces, local details.
STEEL STRUCTURES: Modeling, design and checks of the structural elements of steel buildings. Typical structural schemes and static behavior under vertical and horizontal loading conditions. Structural steel connections: bolted welded connections. Flexural and Flexural-Torsional Instability problems.
DEISGN OF D-REGIONS: Introduction to the modeling of D-Regions. Empirical methods based on photo elasticity and analytical models. Construction of Strut & Tie models. Depth beams and corbels. The diffusion of the prestressing forces
STEEL-CONCRETE COMPOSITE STRUCTURES: the beams, technology, typical composite structures, statics of the sections in elastic and ultimate conditions, constructive phases, the influence of the supports. BEHAVIOUR OF THE FRAME STRUCTURES: the behavior under vertical and horizontal loads, shear type frames, deformable beams frames, the ductility concept, local and global ductility.
DESIGN OF LATERAL FORCE-RESISTINTING ELEMENTS: distribution of the horizontal forces in the elastic case: center of stiffness, evaluation of translational and rotational stiffness, elevator core, calculus of single or coupled walls, evaluation of stresses in walls with rigid or deformable transversal beams.
The exam consists of an oral test on topics covered during the lectures.
CTC LESSONS PLAN 19-20
Fabrizio Paolacci, La ripartizione dei carichi nelle strutture intelaiate (appunti dalle lezioni)
Fabrizio Paolacci, Progetto di Travi in cemento armato precompresso (appunti dalle lezioni)
AICAP – Guida all’uso dell’Eurocodice 2 – Vol 1
Ghersi, Il Cemento Armato, Dario Flaccovio Ed.
Walther R. Miehlbradt, Progettare in calcestruzzo armato, Ed. Hoepli,1994.
Antonini T., Cemento armato precompresso, Ed. Masson, 1986.
Elio Giangreco, Teoria e Tecnica delle Costruzioni. Liguori editore
E.F.Radogna – Tecnica delle Costruzioni Vol. 2 – Masson editoriale ESA 1995
Claudio Bernuzzi, Progetto e Verifica delle strutture in Acciaio. Seconda Edizione, Hopli
In questa sezione viene fornito il materiale didattico del corso.
APPUNTI DALLE LEZIONI
STRUTTURE IN ACCIAIO E COMPOSTE:
SOFTWARE ARCELOR MITTAL: https://constructalia.arcelormittal.com/en/tools/software