seismic fragility curves for the european building maio, georgios tsionis review and evaluation of...

Download Seismic fragility curves for the European building   Maio, Georgios Tsionis Review and evaluation of analytical fragility curves Seismic fragility curves for the European building stock 2015

Post on 11-Mar-2018

217 views

Category:

Documents

2 download

Embed Size (px)

TRANSCRIPT

  • Rui Maio, Georgios Tsionis

    Review and evaluation of

    analytical fragility curves

    Seismic fragility curves for the European building stock

    2015

    EUR 27635 EN

  • Seismic fragility curves for the European building stock

  • i

    This publication is a Technical report by the Joint Research Centre, the European Commissions in-house science

    service. It aims to provide evidence-based scientific support to the European policy-making process. The scientific

    output expressed does not imply a policy position of the European Commission. Neither the European

    Commission nor any person acting on behalf of the Commission is responsible for the use that might be made of

    this publication.

    Contact information

    Name: Georgios Tsionis

    Address: Joint Research Centre, Via E. Fermi 2749, Ispra (VA) 21027, Italy

    E-mail: georgios.tsionis@jrc.ec.europa.eu

    Tel.: 39 03 32 78 94 84

    JRC Science Hub

    https://ec.europa.eu/jrc

    JRC99561

    EUR 27635 EN

    ISBN 978-92-79-54136-0 (PDF)

    ISBN 978-92-79-54137-7 (print)

    ISSN 1831-9424 (online)

    ISSN 1018-5593 (print)

    doi:10.2788/586263 (online)

    doi:10.2788/798152 (print)

    European Union, 2015

    Reproduction is authorised provided the source is acknowledged.

    How to cite: Maio R and Tsionis G (2016) Seismic fragility curves for the European building stock: review and

    evaluation of analytical fragility curves. EUR 27635 EN. doi:10.2788/586263.

  • ii

  • iii

    Table of contents

    1. Introduction .................................................................................................... 1

    1.1. Background ............................................................................................... 1

    1.2. Objectives and motivation ........................................................................... 2

    1.3. Outline of the report ................................................................................... 3

    2. Overview of existing fragility curves ................................................................... 5

    2.1. Analytical approaches ................................................................................. 5

    2.2. Empirical approaches .................................................................................. 6

    2.3. Expert judgment elicitation approaches ......................................................... 7

    2.4. Hybrid approaches ...................................................................................... 8

    3. Review of analytical fragility assessment methodologies ..................................... 11

    3.1. Structural system ..................................................................................... 14

    3.2. Components for response analysis .............................................................. 15

    3.3. The selection of the analysis type ............................................................... 17

    3.3.1. Nonlinear Dynamic Analysis .................................................................. 17

    3.3.2. Nonlinear Static Analysis ...................................................................... 19

    3.3.3. Simplified Mechanism Models ............................................................... 20

    3.3.3.1. FaMIVE method ............................................................................. 21

    3.3.3.2. DBELA method .............................................................................. 22

    3.3.3.3. SP-BELA method ........................................................................... 23

    3.3.3.4. VULNUS method ............................................................................ 25

    3.4. The selection of the model type .................................................................. 25

    3.4.1. MDoF models ...................................................................................... 26

    3.4.2. Reduced MDoF models ......................................................................... 27

    3.4.3. SDoF models ...................................................................................... 27

    3.5. Shear failure ............................................................................................ 28

    3.6. Out-of-plane response of masonry buildings ................................................ 29

    3.7. Horizontal diaphragms in masonry buildings ................................................ 30

    3.8. Geometrical irregularities........................................................................... 30

    3.9. Seismic demand and site-specific records .................................................... 31

    3.10. Definition of EDP values at damage thresholds ............................................. 31

    3.11. Form of relation ....................................................................................... 32

    3.12. Intensity Measure ..................................................................................... 33

    3.13. Sampling method and sample size .............................................................. 33

    3.14. Summary table of the reviewed fragility curves ............................................ 35

    4. Criteria and evaluation of fragility curves .......................................................... 41

    4.1. Capacity .................................................................................................. 42

  • iv

    4.2. Demand .................................................................................................. 43

    4.3. Fragility curve (derivation method) ............................................................. 43

    4.4. Treatment of uncertainty ........................................................................... 44

    5. Current trends in seismic fragility curves ........................................................... 49

    6. Concluding remarks ........................................................................................ 55

  • v

    Acknowledgements

    The work herein presented entitled Seismic fragility curves for the European building

    stock: review and evaluation of analytical fragility curves, was carried out under the

    European Commission traineeship job contract no. 228449 at the European Laboratory

    for Structural Assessment of the Joint Research Centre, in the framework of the of the

    RESURBAN institutional project, which deals with the resilience of the buildings in urban

    areas across the European Union. This was not only a quite challenging but also a very

    motivating research topic since seismic fragility assessment has becoming an issue of

    growing interest worldwide. However, without the support from many sides it would not

    have been possible to accomplish this outcome and therefore I would like to use this

    occasion to express my gratitude.

    First of all I would like to thank my traineeship advisor, Georgios Tsionis, for his support

    and understanding, and also for his remarkable comments and suggestions throughout

    the traineeship, which were definitely decisive to improve the overall quality of this

    report. I would like also to thank Lusa Sousa and Artur Pinto for their support and

    willingness to help solving whatever situation, either work-related or everyday life

    unexpected difficulties, and Professor Serena Cattari, for her interest, expertise and kind

    collaboration on writing the foreword of the present report.

    I would like to address a special word of thanks to the Board of Studies of my PhD

    Program Infrarisk- Analysis and Mitigation of risks in Infrastructures, in particular to

    Professor Carlos Sousa Oliveira, for his support and receptiveness regarding this

    traineeship opportunity at the Joint Research Centre.

    I would also like to thank my PhD supervisor, Professor Romeu Vicente, for his

    motivation and positivism that keeps me interested following a research career, and also

    for his help and support on overcoming all the institutional and bureaucratic hurdles.

    Last but not least, I would like to thank all the extraordinary people that I had the

    chance to meet here at the Joint Research Centre, namely to Traineeland. Within this

    unofficial community of trainees I have met the most highly talented young individuals

    who taught me among other things, to be more tolerant, open-minded and to always

    think on the positive side of things.

    Rui Maio

    PhD Student of the Infrarisk- Doctoral Programme

    DECivil-UA, Department of Civil Engineering

    RISCO Aveiro Research Centre of Risks and Sustainability in Construction

    University of Aveiro

  • vi

  • vii

    Foreword

    Seismic risk is defined as the potential of negative consequences of hazardous events

    that may occur in a specific area and period of time and is obtained by the probabilistic

    convolution of three main components, the hazard, vulnerability and exposure. The

    concept of negative consequences can belong to different categories such as: physical

    damage to buildings, casualties, direct cost of damage, indirect economic impacts (loss

    of productivity and business interruption), loss of function in lifelines and critical facilities

    and also social, organizational and institutional impacts. In recent years a growing

    attention in research has been paid on how to consider all these contri

Recommended

View more >