According to the data made available at the ASSISi 12th World Conference Seismic Isolation, Energy Dissipation and Active Vibrations Control of Structures (Sochi, Russian Federation, September 24-27, 2011) and to further recent information, more than 20,000 structures, located in over 30 countries, have been protected by passive anti-seismic (AS) systems, mainly by seismic isolation (SI) and energy dissipation (ED). In addition, considerable efforts are being devoted to the development of non-passive systems. The use of the AS systems is increasing everywhere, although its extent is strongly influenced by earthquake lessons and the features of the design rules used. As to the latter, SI is considered as an additional safety measure (with consequent additional construction costs) in some countries (Japan, USA, etc.), while, in others (including Italy), the codes allow to partly take into account the reduction of the seismic forces acting on the superstructure that is induced by SI. Applications of the AS systems have been developed for both new and existing structures of all kinds: bridges and viaducts, civil and industrial buildings, cultural heritage and industrial components and installations, including some high risk plants (e.g. nuclear reactors and some chemical installations). Those in a civil context already include not only strategic and public structures, but also residential buildings and even many small private houses. In Italy, the use of the AS systems has become more and more popular especially after the 2009 Abruzzo earthquake (nowadays over 400 building are seismically isolated). In its first part, the paper will summarize the state of the art of the development and application of the AS systems and devices in Italy, by devoting particular to SI and ED of buildings, in the context of recent seismic events (e.g. the 2002 Molise & Puglia, 2009 Abruzzo and 2012 Emilia quakes). Moreover, based on the Italian experience, this part of the paper will stress the conditions for the correct use of SI and will mention some recent initiatives of the Italian Parliament to ensure such a correct use and to widely extend it to the high risk chemical plants too (for which only very few applications already exist in Italy). The recent developments of non-passive systems will be outlined in the second part of the paper

DEVELOPMENT AND APPLICATION OF SEISMIC ISOLATION, ENERGY DISSIPATION AND OTHER VIBRATION CONTROL TECHNIQUES IN ITALY FOR THE PROTECTION OF CIVIL STRUCTURES, CULTURAL HERITAGE AND INDUSTRIAL PLANTS

SALVATORI, ANTONELLO
2013-01-01

Abstract

According to the data made available at the ASSISi 12th World Conference Seismic Isolation, Energy Dissipation and Active Vibrations Control of Structures (Sochi, Russian Federation, September 24-27, 2011) and to further recent information, more than 20,000 structures, located in over 30 countries, have been protected by passive anti-seismic (AS) systems, mainly by seismic isolation (SI) and energy dissipation (ED). In addition, considerable efforts are being devoted to the development of non-passive systems. The use of the AS systems is increasing everywhere, although its extent is strongly influenced by earthquake lessons and the features of the design rules used. As to the latter, SI is considered as an additional safety measure (with consequent additional construction costs) in some countries (Japan, USA, etc.), while, in others (including Italy), the codes allow to partly take into account the reduction of the seismic forces acting on the superstructure that is induced by SI. Applications of the AS systems have been developed for both new and existing structures of all kinds: bridges and viaducts, civil and industrial buildings, cultural heritage and industrial components and installations, including some high risk plants (e.g. nuclear reactors and some chemical installations). Those in a civil context already include not only strategic and public structures, but also residential buildings and even many small private houses. In Italy, the use of the AS systems has become more and more popular especially after the 2009 Abruzzo earthquake (nowadays over 400 building are seismically isolated). In its first part, the paper will summarize the state of the art of the development and application of the AS systems and devices in Italy, by devoting particular to SI and ED of buildings, in the context of recent seismic events (e.g. the 2002 Molise & Puglia, 2009 Abruzzo and 2012 Emilia quakes). Moreover, based on the Italian experience, this part of the paper will stress the conditions for the correct use of SI and will mention some recent initiatives of the Italian Parliament to ensure such a correct use and to widely extend it to the high risk chemical plants too (for which only very few applications already exist in Italy). The recent developments of non-passive systems will be outlined in the second part of the paper
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11697/38140
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