Dipartimento di Architettura

Obiettivi

Setting up and developing the project of the structures, starting from the needs and objectives of the project, up to evaluating the alternatives in terms of impact and sustainability: aesthetic, functional, economic and safety. Insights into the behavior and verification of structural elements and structures as a whole, including foundations, with reference to the actions, including seismic action, and the required performance also with reference to current legislation. Interaction of structural design with other design aspects, as the design should involve all aspects. Qualitative and quantitative evaluation from the conception to the development of the project and to the realization of the work.

Canali

CANALE I

LAVORATO DAVIDE

scheda docente | materiale didattico

Programma

1 THE SEISMIC RESPONSE OF STRUCTURES:

1.1 Response of Structures in the linear field

1.1.1. 1-degree-of-freedom systems:

- Simple oscillator,
- Free oscillations with and without damping,
- Forced oscillations with and without damping,
- Response of a simple oscillator subject to a generic forcer,
- Definition of Elastic Response Spectra (acceleration, velocity, displacement),
- Calculation of seismic forces on the simple oscillator using the elastic response spectrum of accelerations.

1.1.2. Multi-degree-of-freedom systems:

- Concentrated mass models,
- Free oscillations,
- Modal analysis,
- Seismic actions,
- Seismic analysis by acceleration response spectrum,
- Simplified approaches.

1.2. Seismic response of structures in the nonlinear field:

- Ductility (material, section, element, structure),
- Simple oscillator with elastoplastic behavior,
- Nonlinear response spectra (design spectra),
- Coefficient of structure.

2. CONSTRUCTION ENGINEERING RECALLS AND INSIGHTS.

- Mechanical characterization of materials and simplified bonds according to standards (NTC and Eurocode No.2 and No.8),
- Recalls for design and verification according to ultimate limit states (ULS; normal stress, bending, buckling, and shear),
- Recalls for design and verification according to service limit states (SLS; bending),
- Design and verification at ULS for deflected presso bending stresses,
- Design and verification at ULS: construction of M-N strength domains for presso-flexed r.c. elements,
- Design and verification at ULS r.c. elements for torsion stress,
- ULS design and verification of r.c. slabs and plates,
- ULS design and verification for r.c. surface foundations.

3. THE DESIGN OF STRUCTURES IN THE SEISMIC ZONE

- Insights into seismic action,
- Structural concept and Criteria for good design of ca structures in a seismic zone,
- Introductions to possible design strategies in the seismic zone (elastic design, ductility design, seismic isolation design, etc),
- Structural modeling in a seismic zone,
- Standards for structural design (Technical Construction Standards in Italy, Eurocodes in Europe, international standards),
- Hints on Foundation Design.

4. DESIGN APPLICATION: R.C. STRUCTURE DESIGNED IN SEISMIC ZONE

4.1. Design and verification of floors:

- Choice of Structural Type,
- Technical standards for design and verification,
- Definition of the Structural System (section geometries, texture, etc.),
- Analysis of elementary loads and their combinations,
- Analytical modeling of the floor,
- Numerical modeling of the floor (F.E.M. software),
- Design and verification,
- Construction details,
- Structural design drawings.

4.2. Design and verification of a reinforced concrete ( r.c. ) structure:

- Definition of seismic action,
- Analysis and combinations of elementary loads,
- Definition of the Structural System,
- Technical standards for structural design (Italian NTC and Eurocode No.2 and No.8).
- Analytical modeling,
- Numerical modeling using F.E.M. software,
- Study of structural behavior,
- Modal analysis,
- Infills,
- Secondary elements,
- Design and verification of elements according to the hierarchy of strengths,
- Analysis by acceleration response spectrum according to Technical Standards,
- Design and verification of structural elements SLS and ULS (beams, slabs, plates, piers, septa, nodes, and stairs),
- Hints of geotechnics: soil bearing capacity, creep verification,
- Design and verification of surface foundations (punching, bending reinforcement),
- Construction details,
- Preparation of structural design drawings.

5. INSIGHTS ON STRUCTURES IN SEISMIC ZONE

- Seismic retrofitting or improvement of existing structures,
- Sustainable structural design,
- Innovative construction techniques.

Testi Adottati

Dispense del corso distribuite dal docente attraverso i canali ufficiali (Teams).

Libri di testo:

Quaderno aicap N.2 PROGETTO DI UN EDIFICIO IN C.A. CON E SENZA ISOLAMENTO SISMICO ALLA BASE
aicap - Associazione Italiana Calcestruzzo Armato e Precompresso

DETTAGLI COSTRUTTIVI di STRUTTURE in CALCESTRUZZO ARMATO
aicap - Associazione Italiana Calcestruzzo Armato e Precompresso

PROGETTAZIONE DI STRUTTURE IN CALCESTRUZZO ARMATO
GUIDA ALL’USO dell’EUROCODICE 2 con riferimento alle Norme Tecniche D.M. 14.1.2008
aicap - Associazione Italiana Calcestruzzo Armato e Precompresso

PROGETTAZIONE SISMICA DI EDIFICI IN CALCESTRUZZO ARMATO
GUIDA ALL’USO dell’EUROCODICE 2 con riferimento alle Norme Tecniche D.M. 14.1.2008
aicap - Associazione Italiana Calcestruzzo Armato e Precompresso

Bibliografia Di Riferimento

Bibliografia per approfondimenti: MINISTERO DELLE INFRASTRUTTURE E DEI TRASPORTI, DECRETO 17 gennaio 2018. Aggiornamento delle «Norme tecniche per le costruzioni». Supplemento ordinario alla Gazzetta Ufficiale n. 42 del 20 febbraio 2018 - Serie generale. MINISTERO DELLE INFRASTRUTTURE E DEI TRASPORTI, CIRCOLARE n. 7 del 21 gennaio 2019, pubblicata in Gazzetta Ufficiale n. 35/2019, con oggetto: Istruzioni per l’applicazione dell’aggiornamento delle norme tecniche per le costruzioni di cui al decreto ministeriale 17 gennaio 2018. EN 1998-1:2004 Eurocode 8: Design of structures for earthquake resistance – Part 1: General rules, seismic actions, and rules for buildings. CHOPRA, A. K. (1995). Dynamics of structures: theory and applications to earthquake engineering. Englewood Cliffs, N.J., Prentice-Hall. PAULAY, T, PRIESTLEY, M.J.N. (1992) Seismic Design of Reinforced Concrete and Masonry Buildings, John Wiley and Sons, New York, USA

Modalità Erogazione

The course includes: - frontal lessons, - classroom exercises, - development of classroom projects (single or group work), - attend seminars and/or conferences organized as part of the course, - visit the research laboratory “Laboratorio Prove e Ricerca su Strutture e Materiali (PRiSMa)” of the Department of Architecture (Roma Tre University) where the experimental activities related to the course topics are described and shown. The course includes the analysis and in-depth study of the case studies analyzed in previous courses in architectural design. The teacher uses assistants for teaching support (exercises and development of classroom projects).

Modalità Frequenza

Attendance is required for at least 75% of the lessons

Modalità Valutazione

Design and verification of an RC structure. Complete structural drawings and technical reports. Oral exam with theoretical questions and discussion of the project carried out during the course. In the event of an extension of the health emergency from COVID-19, all the provisions that regulate the methods of carrying out teaching activities and student assessment will be implemented. In particular, the following methods will apply: - the electronic submission of the files relating to the structural drawings and the technical report (all the documents necessary to carry out the project); The submission must take place at least 7 days before the exam date, - the exam includes an oral test with theoretical questions and a discussion of the project carried out during the course, - the platform for carrying out the distance exams will be the official Teams platform already used by the students to follow the university courses.

CANALE II