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Teoria e Progetto dei Ponti
Bridge Theory and Design
Luigino Dezi

Seat Ingegneria
A.A. 2016/2017
Credits 9
Hours 72
Period II
Language ENG

Prerequisites
Fundamentals of structural engineering are considered as assumed knowledge.

Learning outcomes
KNOWLEDGE AND UNDERSTANDING:
The course aims to provide students with theoretical basis and practical skills for the modelling, analysis and design of reinforced concrete and steel-concrete composite bridges, in order to amplify the student’s knowledge in the field of civil engineering.
CAPACITY TO APPLY KNOWLEDGE AND UNDERSTANDING:
The student develops modelling capabilities, as well as design and analysis skills, of reinforced concrete and steel-concrete composite bridges. These skills are gained through lectures and a designing exercise, developed in working groups, which implies the drafting of technical executive documents.
TRANSVERSAL SKILLS:
The designing exercise, which is developed in working group and requires the use of specific software for the solution of practical problems, contributes to improve the student’s capability of identifying, formulating and solving problems, as well as the communicative skill, necessary for the teamwork.

Program
Contents of lectures (56 hours) Structural typologies and construction techniques: decks with precast prestressed concrete girders or box-girders; steel-concrete composite decks; arch bridges; cable stayed bridges; substructures (piers, abutments and bearings). Influence lines: generalised Betti’s theorem and related theorems; the influence lines of displacements and internal stress resultants due to moving loads and deformations. Loads on bridges: traffic loads, wind loads, thermal loadings, etc. Transverse loading distribution: orthotropic plates and beam grids; simplified methods by Engesser and Courbon-Albenga. Box-girders: effects due to non-uniform torsion and transverse deformability. Creep and shrinkage effects: continuous steel-concrete composite beams, continuous decks with postponed restraints and variable static scheme. Classroom tutorials (16 hours) design of a bridge with a steel-concrete composite deck.

Development of the examination
LEARNING EVALUATION METHODS
The evalulation of student learning is based on an oral exam consisting in a discussion of the design project and in some theoretical questions on the topics covered during the course. To access the oral exam the student is required to have completed the project.

LEARNING EVALUATION CRITERIA
Through the design project and the oral exam the student must demonstrate to have learned the topics covered during the course, such as analysis and design methods of structural bridge typologies studied in the course.

LEARNING MEASUREMENT CRITERIA
The evaluation is expressed in thirtieths.

FINAL MARK ALLOCATION CRITERIA
During the oral exam a mark is attributed to the design project and the final mark of the course will be calculated as the average of the marks received for the oral exam and for the design project. The 'lode' will be awarded to students who, having correctly completed the three assessments, show an outstanding understanding in the subject.

Recommended reading
Petrangeli M.P., Progettazione e costruzione di ponti, Masson Ed. ESA. (in Italian) Raithel A., Costruzione di ponti, Liguori Editore. (in Italian)

Courses

• Ingegneria Civile (Corso di Laurea Magistrale (DM 270/04))