DESIGN OF STRUCTURES 1-2
Learning outcomes of the course unit
Knowledge and understanding:
At the end of the course the student will learn the theoretical bases and the fundamental methodologies for the design and verification of the structural elements of a masonry building subjected to static and seismic actions. The students will learn the basic behavior of the materials (wood, reinforced concrete, masonry) and how to conceive structural details.
Applying knowledge and understanding
The student should acquire all those skills which are the basis of a conscious design and will be able in a systematic way to fit within the building process. In particular a good ability in the structural concepts of new civil buildings subject to seismic action should be obtained.
The student will govern the procedure adopted in the current design practice, with a constant link between the theoretical knowledge and the practical applications.
The confidence gained through a constant connection between theoretical knowledge and applications, will allow the student to possess the necessary skills for results presentation.
The student will be able to design the structural elements of a masonry building.
The courses of Statics, Structural mechanics, and Structural Engineering are helpful.
Course contents summary
The course aims to provide the fundamentals for the structural design under static and seismic loads of several parts of a masonry building with wood or reinforced concrete diaphragms. The contents of the course are listed below:
1. Preliminary concepts of civil engineering seismology and methods of measurement of seismic motion;
2. Spectral response analysis: example of static and dynamic analysis for 2D frames;
3. Capacity design approach;
4. Combination of the seismic action with other actions, limit state verifications;
5. Seismic behaviour of masonry structures;
6. Design and detailing of masonry buildings: theory and applications;
7. Out-of-plane failure mechanisms in masonry buildings: theory and applications;
8. Current codes and calculation reports in compliance with national and regional norms.
1. Design of masonry walls under static loads: simplified dimensioning. Verification of unreinforced masonry walls subjected to mainly vertical loading. Masonry walls subjected to shear loading. Masonry walls subjected to lateral loading. Unreinforced masonry walls subjected to combined vertical and lateral loading. Method using φ factor.
2. Design criteria for horizontal diaphragms, and for link structures, in particular:
- Characterization of the most used structural materials: concrete, steel, wood.
- Construction techniques of diaphragms: floors in reinforced concrete, steel, or wood.
- Reinforced concrete floors: dimensioning, structural details, design and verifications.
- Wooden floors: typologies, dimensioning, design and verifications.
- Timber roofs: typologies, dimensioning, design and verifications.
- Stairs: structural schemes, dimensioning, design and verifications.
- GHERSI, A. e LENZA P., Edifici antisismici in cemento armato, DARIO FLACCOVIO EDITORE, 2010.
- GHERSI, A., LENZA P. e CALDERONI, B., Edifici in muratura alla luce della nuova normativa sismica, DARIO FLACCOVIO EDITORE, 2011.
- Iacobelli F., "Progetto e verifica delle costruzioni in muratura in zona sismica", EPC libri.
- Carbone I.V., Fiore A., Pistone G., "Le costruzioni in muratura", Hoepli.
- Piazza M., Tomasi R., Modena R., "Strutture in legno", Hoepli.
- Cosenza E., Manfredi G., Pecce M., "Strutture in cemento armato - Le basi della progettazione", Hoepli.
- Lenza P., Ghersi A., Calderoni B., "Edifici in muratura alla luce della nuova normativa sismica", Dario Flaccovio Editore
All the teaching material is available via the portal “Web LEArning in Ateneo” (LEA UNIPR).
The course is composed of traditional frontal lectures, also with Powerpoint presentations.
Theoretical concepts are applied during the course by carrying out the step-by-step design of a masonry/wood building.
Assessment methods and criteria
The written examination consists in the calculation reports and an oral discussion with the teacher. The level of student learning can be measured as follows:
10% conceptual design;
5% % analysis of actions;
5% masse centroid and stiffness centroid evaluation;
15% linear static analysis;
15% in-plane and out of plane seismic verification of masonry walls;
20% masonry walls static verifications;
10% reinforced concrete floors design;
15% timber roof elements design;
5% stair design.
As for all the laboratories, attending the courses is required.