Università Roma Tre

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: 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 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.

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