SED 19 (ePDF) Seismic Isolation and Response Control

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The seismic resilience of new and existing structures is a key priority for the protection of human lives and the reduction of economic losses in earthquake prone areas. The modern seismic codes have focused on the upgrade of the structural performance of the new and existing structures. However, in many cases it is preferrable to mitigate the effects of the earthquakes by reducing the induced loads in the structures using seismic isolation and response control devices. The selection of the appropriate system and the limited expertise on the design of these systems for new and existing structures are the main challenges for the extensive use of seismic isolation and response control systems in practice.

This document aims to provide a practical guide by presenting a collection of the most commonly used seismic isolation and response control systems and a critical evaluation of the main characteristics of these systems. Comparisons of the key parameters of the design processes for new buildings with seismic isolation are presented, while the application of seismic isolation systems and response control systems for the retrofitting of existing structures is also examined, followed by various case studies from Greece, Japan Mexico New Zealand, and Turkey.

 

eISBN: 978-3-85748-179-6 (PDF)


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Description

The first part of this document is focused on the collection of the most commonly
used seismic isolation and response control systems and the critical evaluation of the
main characteristics of these systems. Then a comparison of the key parameters of the
design processes for the design of new buildings with seismic isolation is presented, followed
by four case studies from New Zealand, Greece, and Mexico and one case study
on response control systems from Japan. The application of seismic isolation systems and
response control systems for the retrofitting of existing structures were also examined.
Two case studies on the application of seismic isolation systems in Turkey and Greece are
presented, followed by three case studies on the application of response control systems
in existing structures in Japan, Turkey and New Zealand. Finally, post-earthquake survey
observations from seismic isolated structures are described to evaluate the efficiency of
the application of these systems.
The main aim of this document is to provide a practical guide for the selection of
seismic isolation and response control systems and explain the main steps of the design
and application process. This work has been conducted as one of the main tasks of IABSE
Task Group 1.1 ‘Improving Seismic Resilience of Reinforced Concrete Structures’, which
is part of Commission 1 ‘Performance and Requirements’.
This work was coordinated by the IABSE Task Group 1.1 Chairman Dr Andreas
Lampropoulos (Editor) and presents a teamwork of the following members (listed in
alphabetical order): Dr Eftychia Apostolidi, Professor Stephanos Dritsos, Mr Christos
Giarlelis, Professor Jose Jara. Professor Fatih Sutcu, Professor Toru Takeuchi and Dr Joe
White.
Chapter 1 (Introduction) was led by Professor Stephanos Dritsos and Chapters 2
(Seismic Isolation and Response Control Systems), 3.1 (Design of New Buildings with
Seismic Isolation), and 3.2 (Basics of Seismic Isolation Design) were led by Professor
Fatih Sutcu, Professor Toru Takeuchi and Mr Christos Giarlelis. Mr Christos Giarlelis
also led the preparation of the three case studies in Greece. Professor Jose Jara led the
preparation of the case study in Mexico. Professor Fatih Sutcu led the preparation of the
two case studies in Turkey. Professor Toru Takeuchi led the preparation of the two case
studies in Japan. Dr Joe White led the preparation of the two case studies in New Zealand.
Dr Eftychia Apostolidi worked on the enhancement and completeness of the main part of
the document. All the authors of the list contributed to various sections of this document
which represents the outcome of a collective effort.
The Editor would like to express his appreciation and sincere thanks to the reviewers,
Prof. Fabrizio Palmisano (Chief Reviewer, Editorial Board), Prof. Alberto Pavese and Asst.
Prof. Bahadir Sadan, for their comprehensive and valuable comments and suggestions.
Finally, the Editor would like to express his gratitude to the Chair of IABSE Commission
1, Mr Niels Peter Hoj, and the Chair of the Bulletin Board, Dr Harsha Subbarao, for
their continuous encouragement and support during the preparation of this document.