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Fundamentals of Seismic Design a.y. 2020/21

Programma

The course will start with a brief review on the main aspects of the dynamic behaviour of linear and nonlinear single-degree-of-freedom systems, which represents the basis to understand seismic design. Afterwards, the conceptual seismic design of structures will be addressed. The core of the course will be the discussion of (largely enforced) force-based and (developing) displacement-based seismic design philosophies, focusing on the tools and steps required for their employment and verification. Capacity design principles, necessary to ensure a target hierarchy of ductile inelastic deformations will be explained with emphasis on the design and detailing of reinforced concrete structures with the adoption of Eurocode 8, amongst other codes and guidelines. Further attention will also be paid to the characterisation of the force-deformation behaviour of reinforced concrete structural elements as well as the modelling and analysis of reinforced concrete structures with nonlinear finite element approaches. Four homework assignments are foreseen, which will address the characterization of the seismic input and the seismic design and detailing of a reinforced concrete structural wall building.

Software
At least two specific types of software will be necessary:

[SECTION ANALYSIS]
• Bentz E.: “Response 2000”. User Manual. Department of Civil Engineering, University of Toronto, Canada. Toronto, March 2001. (http://www.ecf.utoronto.ca/~bentz/r2k.htm)
[STRUCTURAL ANALYSIS]
• Seismosoft: “SeismoStruct - A computer program for static and dynamic nonlinear analysis of framed structures”. 2018. (http://www.seismosoft.com/seismostruct)
• Mazzoni et al.: “OpenSEES - The open system for earthquake engineering simulation”, PEER, UC Berkeley, 2006. (http://opensees.berkeley.edu)

Svolgimento

Date

Tutorial

Lecture

Subject

Homework

14/06

 

 

 

 

15/06

 

14:30 - 17:30

  1. Introduction
  2. Force-deformation characteristics of RC elements
    • Material properties of concrete and steel
    • Section analysis

 

16/06

10:30 - 13:30

14:30 - 17:30

Tutorial HW1

  1. Elastic and inelastic response spectra
    • Elastic response spectra
    • Strength and ductility

 

 

HW1 set

17/06

10:30 - 13:30

14:30 - 17:30

  1. Elastic and inelastic response spectra
    • Inelastic response spectra
    • Linear equivalent SDOF systems; overdamped spectra

 

18/06

10:30 - 13:30

 

Tutorial HW2

HW2 set

21/06

 

 

 

 

22/06

 

14:30 - 17:30

  1. Seismic design methods
    • Possible force-based design methods
    • Equivalent lateral force method

 

23/06

10:30 - 13:30

14:30 - 17:30

Tutorial HW3

  1. Seismic design methods
    • Response spectrum method
    • Considerations on force-based seismic design

 

HW3 set (HW1 due)

24/06

10:30 - 13:30

14:30 - 17:30

  1. Seismic design methods
    • Performance-based seismic design
    • Direct displacement-based seismic design (DDBD)

 

25/06

10:30 - 13:30

 

Tutorial HW3

 

28/06

 

 

 

 

29/06

 

14:30 - 17:30

5. Seismic design methods

- Direct displacement-based seismic design (DDBD)

(HW2 due)

30/06

10:30 - 13:30

14:30 - 17:30

Tutorial HW4

6. Conceptual seismic design

HW4 set

01/07

10:30 - 13:30

14:30 - 17:30

  1. Capacity design
    • Introduction and principles
    • Code-based capacity design steps
    • Section detailing

 

02/07

10:30 - 13:30

 

 

(HW3 due)

05/07

 

 

 

 

06/07

10:30 - 13:30

14:30 - 17:30

  1. Inelastic analysis and seismic assessment methods
    • Pushover analysis
    • Nonlinear static procedures
    • Nonlinear dynamic analysis

 

07/07

10:30 - 13:30

14:30 - 17:30

9. Additional aspects in seismic design

- Seismic loss assessment

 

08/07

 

 

 

(HW4 due)

09/07

 

14:30 - 17:30

Final Exam

 

Bibliografia

In addition to specific papers and handouts indicated/delivered during classes, the following general textbooks are recommended.

[STRUCTURAL DYNAMICS]
• Chopra A., “Dynamics of Structures”, Prentice Hall, Third Edition, 2007
• Clough R.W., Penzien J., "Dynamics of structures", Computers & Structures Inc, 2003 [SEISMIC RESPONSE AND DESIGN]
• Priestley, M.J.N., “Myths and Fallacies in Earthquake Engineering, Revisited”, Rose School, Pavia, 2003
• Paulay, T. and Priestley, M.J.N., “Seismic Design of Reinforced Concrete and Masonry Buildings”, Wiley, 1992
• Priestley, M.J.N., Calvi G.M. and Kowalsky, M.J., “Displacement-Based Seismic Design of Structures”, IUSS Press, 2007

Ciclo :  XXXIII, XXXIV, XXXV, XXXVI

Tipologia corso : Caratterizzante

Curriculum : Ingegneria Sismica e Sismologia

Periodo: Semestre II

Anno accademico: 2020-2021

Luogo : on line