PONTI E GRANDI STRUTTURE

The course aims to provide a knowledge on the main theoretical models to be applied to the structural analysis of the bridge, also for long span, as well as about the most appropriate design techniques to different tipolgie the deck, iaccording to the italian codes Student acquires the ability to identify the resistant mechanisms, design loads. We will examine the methods of calculation, the design criteria of the deck structures, substructures and accessory devices.

During the Course, the design of a presteressed bridge will be developed (Exam of codes, choice of the materials, analysis of the static behaviour, the structural detailing

1. introduction. Role of a bridge. Bridge typologies. Reinforced and prestressed concrete bridges. Composite and steel bridges. Sectional geometries: grillage slabs, voided slabs, box girders. Arch bridges. Cable stayed and suspended bridges. Construction methods. Cast-in-place and precast prestressed bridges. Span by span construction. Prestressed segmental bridges.
2. Highway and railway bridge loads. Serviceability and limit state design. International codes of practice.
3. Influence lines theory. Influence surfaces theory (Pucher, Homberg). Analysis of the local effects on deck slabs and on deck slab cantilevers.
4. Bridge deck analysis. Orthotropic plate analysis. Grillage and space frame analysis. Voided slab decks. Special methods of analysis. Transversal load distribution theories. Engesser-Courbon and Massonnet methods.
5. Box girder bridges.
6. Long span bridges.
7. Bridge piers.
8. Cable theory. Mechanical properties. Non linear behaviour of the cables. Catenary. Parabola. Comparison of cable shapes. Influence of the sag on the cable stiffness. Dischinger-Ernst E-modulus.
9. Suspended bridges. General background. Construction techniques. Rankine, Melan and Timoshenko theories. Analytical solutions. Numerical modelization.
10. Abutments. Foundations. Approaching slabs. Bearing supports. Antiseismic devices. Detailing.

This course builds on your knowledge of statics and structural mechanics and steel structures. You will learn to apply structural analysis tools such as computer software combined with self-checking procedures in designing concrete building structures according to Italian design practices code and processes. You will use these skills to analyse and design complex structures in later years of your program.

1. Ioannis Vayas,AristidisIliopoulos. Design of Steel-Composite Bridges to Eurocodes. CRC Press, Taylor & Francis Group. 2014. ISBN 978-1-4665-5744-4

2. Raithel Aldo.Ponti a travata - volume primo -Liguori Editore-Napoli 1978

3. Petrangeli Mario Paolo. Progettazione e Costruzione di Ponti-Masson

4. De Miranda Fabrizio. I Ponti Strallati di Grande Luce – Edizioni Scientifiche Cremonese – Roma

5. PriestleyM.J.N., SeibleF., CalviG.M. Seismic Design and Retrofit of Bridges; John Wiley & Sons; 1996. ISBN: 978-0-471-57998-4

Gimsing, Niels, J., Cable Supported Bridges, Editore: John Wiley & Sons, Anno edizione: 1983, ISBN: 0-471-90130-X

6. Hambly, Edmund, C., Bridge Deck Behaviour, Editore: Chapmann and Hall, London, Anno edizione: 1991, ISBN: 0-419-17260-2

7. Martinez y Cabrera, Francesco - Malerba Pier Giorgio - Gentile, Carmelo, Ponti e Viadotti: Concezione, Progetto, Analisi, Gestione, Editore: Pitagora Editrice Bologna, Anno edizione: 2000, ISBN: 88-371-1209-2

8. O'Connor, Colin, Design of Bridge Superstructures, Editore: Wiley-Interscience, Anno edizione: 1971, ISBN: 0-471-65245-8

9. Troitsky, M., S., Cable Stayed Bridges. Theory and Design, Editore: BSP Professional Books, Blackwell Sc. Publications, Anno edizione: 1977

10. Normative Tecniche in vigore (D.M.14/01/2008 e ss.mm.ii, Circolare 2/2/2009, Eurocodici)