OVERVIEW

The whole Italian territory is potentially subject to seismic events and the study of the actions and effects of the earthquake is an essential phase of structural design. In this context, the seismic design of the building should be looked at as a necessary step of the architectural and structural design, accounting also of proper structural morphology and regularity

AIMS AND CONTENT

LEARNING OUTCOMES

The module addresses the issues related to the structural design in seismic areas. It discusses the techniques of analysis and design of seismic resistant organisms, by addressing the structural design, modeling of actions, seismic analysis and structural calculation.

LEARNING OUTCOMES (FURTHER INFO)

At the end of the course the student will know the basic fundamentals of seismic design and will be able to approach the study of the seismic excited structures establishing a correct modeling of the structure and the action and assessing the most appropriate analytical procedures

TEACHING METHODS

The course is conducted through lectures given by the teacher and numerical exercises at the computer center. The teacher also provides in advance the track of the lesson through AulaWeb.

SYLLABUS/CONTENT

• basic of seismology, origin of earthquakes, measure of the earthquake, seismic risk.
• seismic analysis of linear sdof systems. Response spectrum, equivalent static action
• seismic analysis of non-linear sdof systems. Non linear oscillator, ductility, anelastic response spectrum, behaviour factor.
• Seismic action and design. Seismic codes and standards, performance based design, seismic zones.
• Seismic analysis of NDOF systems. Equivalent static analysis,Dynamic seismic analysis; vibration modes, effective seismic mass. 
• Non linear static analysis. Seismic demand, ADRS spectrum, push over curve, capacity spectrum, N2 technique.
• Seismic design of structures. Concept of the aseismic design, seismic rtesistant structure, structural morphology, mass and stiffness center, distribution of the seismic forces on the bracing system, ductility and capacity design, behaviour factor.
• Seismic design of buildings. Simplified static model, force distribution on the floors.
• Ductility of RC and steel structural systems. Ductility of the material, members and bracing systems, , structural details, overview of structural collapses.
• Seismic behaviour of the ground. Effect of the seismic action over the bearing capacity of the ground, seismic load on the retaining walls, local amplification
• Seismic design of a rc building. Load and weights, static equivalent analysis, dynamic analysis. Seismic design of the structural members

RECOMMENDED READING/BIBLIOGRAPHY

handouts of Constructions (prof. Solari), Structural Dynamics (prof. Piccardo), Seismic Engineering (prof. Pagnini)

Eurocode 8 “Design provisions for earthquake resistance of structures, Part 1: General rules”, ENV 1993-2-1, European Committee for Standardization, 1994;Fajfar, P. (1999), ‘Capacity Spectrum method based on inelastic demand spectra’, earthquake engineering and structural dynamic, 28, 979-993;

Park, T., Priestley M.J.N. “Seismic design of reinforced concrete and masonry buildings”. Wiley, NY, 1992;

Aicap “Progettazione di strutture in calcestruzzo armato, guida all’uso del’Eurocodice 2

con riferimento alle Norme Tecniche D.M. 14.1.2008”, Vol. 1, Edizione Pubblicemento, Roma, 2008

Aicap, “Progettazione sismica di edifici in calcestruzzo armato, guida all’uso dell’Eurocodice 2 con riferimento alle Norme Tecniche D.M. 14.1.2008”, Vol.2, Edizione Pubblicemento, Roma, 2008

TEACHERS AND EXAM BOARD

Exam Board

LUISA PAGNINI (President)

GIUSEPPE PICCARDO (President)

MARIA PIA REPETTO

LESSONS

EXAMS

EXAM DESCRIPTION

oral exam

ASSESSMENT METHODS

Students are requested to discuss the report and to aswer two questions inherent the subjects illustrated during the lessons. Questions may also concern the seismic analysis of a structure, focusing in particular with the choice of the structural model, of the procedure for the representation of the seismic action and with main aspects of the design of the structural elements

Exam schedule