# Bridge design IΙ

## Course Description:

Selection of bridge type, design and calculation of superstructures - infrastructures of reinforced concrete bridges. Contemporary construction methods and earthquake resistant design. Systems for bridging large spans - Special issues on repair and retrofitting of bridges.

### Prerequisite Knowledge

Knowledge of Mechanics, Structural analysis, Earthquake resistant design, Structures from reinforced concrete and steel

### Course Units

# Title Description Hours
1 Introduction Examples of application of actions and calculation of superstructure and piers response. Brief presentation of basic pre-tensioning concepts. 3x2=6
2 Superstructure Design Criteria and Type Selection. Supporting systems. Simulation instructions. Methods of analysis of characteristic types (Beams - Slabs - Girders). Influence of the method and the construction stages in the calculation of the response. 3x4=12
3 Pier and retaining systems Abutments, Piers and retaining walls 1x4=4
4 Mechanized construction methods Pre-casting beams. Balanced Cantilever method. Incremental Launching Movable Scaffolding System. Span by span segmental. 3x4=12
5 Methods of bridging large spans Cable, lifted and arch-type bridges 1x4=4
6 Earthquake resistant design Design methods. Assessment of the seismic actions. Seismic isolation 3x4=12
7 Special Issues Repair - retrofitting 1x2=2

### Learning Objectives

With the successful completion of the course, the students will know:

1. To recognize the design principles of bridge superstructure, infrastructure and foundation;
2. To select the type and design reinforced concrete bridges;
3. To determine the loads of highway bridges according to Eurocodes;
4. Modern construction methods;
5. How to perform the preliminary design of simple bridges.

### Teaching Methods

 Teaching methods Lectures in class. Presentation of the solution of exercises in class. Blackboard. PowerPoint presentations. Visit to construction sites (if possible). 8 exercises to be solved in class and 8 homework assignments Students solve and deliver the homeworks, on which they are examined at the end of the semester. Presentation of significant bridges

### Student Assessment

• Final written exam: 70%
• Assignments (projects, reports): 30%

### Textbooks - Bibliography

1. Class notes (uploaded on the site of the course)
2. C. Menn: “Prestressed Concrete Bridges” (Birkhäuser)
3. F. Leonhardt: “Bridges” (Greek Translation M.Giourdas)
4. EN 1990: Basis of Structural Design
5. EN 1991: Actions on Structures
6. EN 1992-1: Design of Concrete Structures
7. EN 1992-2: Design of Concrete Structures – Concrete Bridges
8. EN 1998-1: Design of structures for earthquake resistance - Part 1 : General rules, seismic actions and rules for buildings
9. EN 1998-1: Design of structures for earthquake resistance - Part 2 : Bridges

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