Introduction To Dynamics Of Structures And Earthquake Engineering - Cimellaro Gian Paolo; Marasco Sebastiano | Libro Springer 04/2018 - HOEPLI.it


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cimellaro gian paolo; marasco sebastiano - introduction to dynamics of structures and earthquake engineering

Introduction to Dynamics of Structures and Earthquake Engineering

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Genere:Libro
Lingua: Inglese
Editore:

Springer

Pubblicazione: 04/2018
Edizione: 1st ed. 2018





Sommario

Part I Dynamics of Structures
1 Introduction 
1.1 Idealization of the structures
1.2 Degrees of freedom 
1.3 Stiffness 
1.4 Mass 
1.5 Damping 
1.6 Equations of motion 
1.6.1 Free vibrations 
1.6.2 External excitations 
2 SDOF Systems 
2.1 Linear SDOF Systems
2.1.1 Free vibrations 
2.2 Response to harmonic excitations 
2.2.1 Undamped systems
2.2.2 Viscously damped systems 
2.3 Response to an impulsive excitation 
2.4 Response to a periodic excitation 
2.5 Earthquake response
2.6 Transmissibility function 
2.7 Nonlinear system response 
3 Methods of solution of the equation of motion 
3.1 Analytical methods
3.2 Duhamel’s integral 
3.3 Fourier series
3.4 Numerical methods
3.4.1 Explicit methods 
3.4.2 Implicit methods 
xiii
xiv Contents
3.4.3 Comparison between the different numerical methods
3.4.4 Numerical methods for nonlinear problems 
4 MDOF systems
4.1 Discretization 
4.2 Shear Type and Bending Type Frames
4.3 Mass, Stiffness and Damping Matrix 
4.3.1 Bending Type Frames
4.3.2 Shear Type Frames
4.4 Reduction of DOFs 
4.5 Modal Analysis 
4.5.1 Vibrational Modes Response
4.5.2 Modal Expansion Of Displacements 
4.5.3 Energetic Considerations
4.6 Free Vibrations 
4.6.1 Undamped Systems 
4.6.2 Damped Systems 
4.7 Response to Harmonic Excitation
4.7.1 Undamped Systems
4.7.2 Viscously Damped Systems 
4.8 Earthquake response 
4.8.1 Numerical example
4.9 3D MDOF multistory buildings 
5 Energy dissipation 
5.1 Damping energy
5.2 Plastic energy
6 Damping on structures 
7 Distributed mass and elasticity systems
7.1 Vibrational Modes Analysis 
7.2 Vibrational Modes Analysis of Forced Systems
8 Generalized SDOF systems 
8.1 Lagrangian approach
8.2 Approximated solution
8.2.1 Example 1: system with distributed mass and elasticity
8.2.2 Example 2: system with distributed elasticity and lumped
mass 
8.2.3 Example 3: general systems 
Part II Introduction to Earthquake Engineering
Contents xv
9 Seismology and Earthquakes 
9.1 Basic concepts of seismology
9.1.1 Earthquake Genesis 
9.1.2 Seismological Parameters 
9.1.3 Waves Propagation 
9.1.4 Attenuation Relationship
9.2 Ground motion parameters 
9.2.1 Peak Parameters 
9.2.2 Frequency and energetic content 
9.2.3 Duration
9.2.4 Other parameters 
10 Major seismic events that occurred in Italy and in the world 
10.1 Introduction
10.2 Earthquakes occurred in Italy in the past 150 years
10.3 Earthquakes occurred in the World from 1960 to the present day
11 Seismic Hazard Analysis
11.1 Deterministic Seismic Hazard Analysis (DSHA) 
11.2 Probabilistic Seismic Hazard Analysis (PSHA)
12 Earthquake prediction
12.1 General aspects 
12.2 Prediction methods
12.2.1 Animal behavior 
12.2.2 Changes in VP/VS
12.2.3 Radon emission 
12.2.4 Electromagnetic variations
12.2.5 Precursory seismicity patterns 
12.3 Earthquake prediction and time-dependent seismic hazard scenarios
12.3.1 Algorithms for intermediate-term middle range earthquake
prediction
12.3.2 Neo-deterministic time-dependent seismic hazard
scenarios for the Italian territory 
12.4 Notable predictions 
12.4.1 Haicheng (China, 1975) 
12.4.2 Parkfield (USA, 1985-1993) 
12.4.3 Loma Prieta (USA, 1989)
12.4.4 L’Aquila (Italy, 2009) 
13 Seismic Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
13.1 Brief History of Italian Seismic Standards . . . . . . . . . . . . . . . . . . . . . . 285
13.2 Elastic Response Spectra . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
13.3 Uniform Hazard Spectrum (UHS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
13.4 Design Response Spectrum (DS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
13.4.1 Design Response spectrum according to NTC08 and EC8 . . 292
xvi Contents
13.4.2 Conditional Mean Spectrum (CMS) . . . . . . . . . . . . . . . . . . . . . 300
13.5 Use of Acceleration time histories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
13.5.1 Ground Motion Selection and Modification . . . . . . . . . . . . . . 304
13.5.2 Available Databases for Signal Processing and Ground
Motion Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
14 Opensignal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
14.1 State of Art . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
14.2 Structure of the software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
14.3 Strong Motion Databases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
14.4 Signal Processing and Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
14.4.1 Response Spectra Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
14.5 Seismic Records Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316
14.6 Approximated Site Response Analysis . . . . . . . . . . . . . . . . . . . . . . . . . 318
14.7 Case Study . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321
15 Methods of analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
15.1 Linear Static Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
15.2 Linear Dynamic Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
15.3 Nonlinear Static Analysis - Pushover . . . . . . . . . . . . . . . . . . . . . . . . . . 334
15.3.1 Capacity spectrum analysis method . . . . . . . . . . . . . . . . . . . . . 339
15.3.2 N2 method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
15.4 Direct displacement-based seismic design procedure . . . . . . . . . . . . . 343
15.5 Nonlinear Dynamic Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346
Part III Seismic Design of Buildings
16 Brief introduction to SAP2000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
16.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
16.1.1 Files Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
16.1.2 Coordinate System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
16.1.3 Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
16.1.4 Materials and Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
16.1.5 Loads . . . .




Trama

This work is an elementary but comprehensive textbook which provides the latest updates in the fields of Earthquake Engineering, Dynamics of Structures, Seismology and Seismic Design, introducing relevant new topics to the fields such as the Neodeterministic method. Its main purpose is to illustrate the application of energy methods and the analysis in the frequency domain with the corresponding visualization in the Gauss-Argant plan. However, emphasis is also given to the applications of numerical methods for the solution of the equation of motion and to the ground motion selection to be used in time history analysis of structures. As supplementary materials, this book provides “OPENSIGNAL", a rare and unique software for ground motion selection and processing that can be used by professionals to select the correct earthquake records that would run in the nonlinear analysis. 

The book contains clear illustrations and figures to describe the subject in an intuitive way. It uses simple language and terminology and the math is limited only to cases where it is essential to understand the physical meaning of the system. 
Therefore, it is suitable also for those readers who approach these subjects for the first time and who only have a basic understanding of mathematics (linear algebra) and static analysis of structures.







Autore

Gian Paolo Cimellaro is currently Associate Professor at the Politecnico di Torino. He has been recently Visiting Professor at the University of California Berkeley (2014-2016). He obtained his M.S. (2005) and Ph.D. (2008) from the University at Buffalo (SUNY) in USA.  Graduated cum laude in Civil Engineering, University of Rome La Sapienza (2001). He is the Chair of the ASCE Committee on “Disaster Resilience of Structures, Infrastructures and Communities” in USA. In 2011, he has received the Fib Achievement Award for Young Engineers, sponsored by fib - the international federation for structural concrete. In 2015, he has received the Seed Grant Award from the Siebel Energy Institute of UC Berkeley. Prof. Cimellaro current research interests address earthquake engineering with emphasis to community resilience to natural disasters such as earthquakes. He has been awarded a grant of 1.3 M € by the European Research Council for the research project "IDEAL RESCUE: Integrated Design and control of sustainable communities During emergencies" ERC-2014-StG (2015-2019). This is the most prestigious prize assigned in Europe to researchers, performing high-risk and high-gain ground-breaking research.

Sebastiano Marasco is currently Ph.D. student at the Politecnico di Torino (Italy). He received his master degree in Civil Engineering from the Politecnico di Torino in 2014. His thesis focused on the signal processing of earthquake records and he has implemented a software called Opensignal for earthquake record processing and selection adopted in both practice and  academic field.  His expertise is in the advanced software programming, in the seismic design of reinforced concrete buildings and in the F.E.M. analysis. His research under the supervision of Professor Gian Paolo Cimellaro is focused on the assessment of resilience in a urban environment. This research is part of project IDEal reSCUE founded by the European Research Council. As a part of this research, he has collected the building’s data within a virtual city and developed an algorithm for estimating the capacity of each building under a seismic event.








Altre Informazioni

ISBN:

9783319725406

Condizione: Nuovo
Collana: Geotechnical, Geological and Earthquake Engineering
Dimensioni: 235 x 155 mm Ø 1379 gr
Formato: Copertina rigida
Illustration Notes:361 Illustrations, black and white
Pagine Arabe: 598
Pagine Romane: xxiii





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