Development of Innovative Anti-Seismic Systems for Civil and Industrial Structures: New Achievements of ENEA

2002 ◽  
Author(s):  
M. Forni ◽  
A. Martelli ◽  
A. Poggianti ◽  
B. Spadoni ◽  
G. Venturi ◽  
...  
Keyword(s):  
Energy Dissipation ◽  
Cultural Heritage ◽  
Active Control ◽  
Seismic Isolation ◽  
New Technology ◽  
Experimental Studies ◽  
Industrial Plants ◽  
Passive Energy Dissipation ◽  
Isolation Systems ◽  
Seismic Isolation Systems

As described at previous ASME-PVP Conferences, large efforts have been devoted by the Italian Agency for New Technology, Energy and the Environment (ENEA), with the cooperation of several further members of the Italian Working Group on Seismic Isolation (GLIS), to the development, validation and application of innovative anti-seismic (IAS) techniques since 1988. Considered have been base and floor seismic isolation systems, energy dissipation systems consisting of various types of passive devices (elastic-plastic, viscous, visco-elastic and electro-inductive dampers), hydraulic coupling systems using innovative shock transmitters, systems formed by shape memory alloy devices and more recently, semi-active control systems of vibrations. New activities at ENEA, which are in progress in the framework of both international and national collaborations, concern the development of new IAS systems of the aforesaid kinds to be applied to: • civil structures (bridges, viaducts and buildings of various types) and industrial plants, in both cases to be constructed or seismically retrofitted; • cultural heritage to be restored or reconstructed, or masterpieces to be seismically protected. This paper focuses on the progress of the studies concerning the first kind of structures (SPIDER, SPACE, ALGA-DECS and ISI Projects), while that for cultural heritage has been dealt with in a separate paper presented at this Conference. In addition, some new projects involving ENEA, which were recently proposed to the European Commission and Italian Ministry for the Environment, are mentioned. The ENEA activities being performed for the above-mentioned projects take advantage of the collaboration of the Universities of Bologna and Ancona and “Studio Antonucci” consulting office. The most recent results of the numerical and experimental studies confirm the adequacy and benefits of the proposed systems for the construction or retrofit the various types of considered structures. Finally, it is worthwhile stressing that two further separate papers presented at this Conference deal with the main features and results of the 7th International Seminar on Seismic Isolation, Passive Energy Dissipation and Active Control of Vibrations of Structures (Assisi, Italy, October 2–5, 2001), which was organized by GLIS with the support of ENEA, and the series of films on the IAS techniques which have been produced in the framework of the MUSICA Project.

Overview: The 7th International Seminar on Seismic Isolation, Passive Energy Dissipation and Active Control of Vibrations of Structures, Assisi, Italy, October 2–5, 2001 and Foundation of the Anti-Seismic Systems International Society (ASSISi)

2002 ◽  
Author(s):  
Alessandro Martelli ◽  
Giordano-Bruno Arato ◽  
Massimo Forni ◽  
Bruno Spadoni ◽  
Howard H. Chung
Keyword(s):  
Energy Dissipation ◽  
Active Control ◽  
International Society ◽  
Earthquake Engineering ◽  
Seismic Isolation ◽  
New Technology ◽  
Active Vibration Control ◽  
International Seminar ◽  
Passive Energy Dissipation ◽  
Group 5

This paper deals with the 7th International Seminar on Seismic Isolation, Passive Energy Dissipation and Active Control of Vibrations of Structures, held at Assisi (Italy) on October 2 to 5, 2001, which was jointly organized by the Italian Working Group on Seismic Isolation (GLIS) of the Italian National Association for Earthquake Engineering (ANIDIS) and Task Group 5 on Seismic Isolation of Structures (TG5) of the European Association for Earthquakes Engineering (EAEE) with the cooperation of several Institutions, associations and companies of a large number of countries, including the Italian Agency for New Technology, Energy and the Environment (ENEA) and the American Society of Mechanical Engineers (ASME). The background, scope, attendance, main technical and organizational features and conclusions of the Seminar and the associated international exhibition and technical meetings and visits are summarized. Some remarks are also reported on the foundation of the new world association on the innovative anti-seismic techniques (ASSISi – Anti-Seismic Systems International Society), which was decided during the Closing Panel of the Seminar, and on the purposes, site and main features of the next event, the 8th World Seminar on Seismic Isolation, Energy Dissipation and Active Vibration Control of Structures, to be held at Yerevan, the Capital of Armenia, in 2003: this is the first event which will be organized in the framework of those officially involving ASSISi.

Development and Application of Innovative Anti-Seismic Systems for the Protection of Cultural Heritage: New Achievements of ENEA

2002 ◽  
Author(s):  
M. Indirli ◽  
M. Forni ◽  
A. Martelli ◽  
B. Spadoni ◽  
A. Dusi ◽  
...  
Keyword(s):  
Cultural Heritage ◽  
Seismic Isolation ◽  
New Technology ◽  
Three Dimensional ◽  
Ambient Vibration ◽  
Civil Structures ◽  
Industrial Plants ◽  
Marche Region ◽  
Passive Devices ◽  
New Development

As described in detail at previous ASME-PVP Conferences and also reminded by separate papers presented this year, large efforts have been devoted by the Italian Agency for New Technology, Energy and the Environment (ENEA), with the cooperation of several further members of the Italian Working Group on Seismic Isolation (GLIS), to the development, validation and application of innovative anti-seismic (IAS) techniques since 1988. To date, considered have been base and floor seismic isolation (SI), energy dissipation through various types of passive devices, hydraulic coupling by means of innovative shock transmitters, systems formed by shape memory alloy devices and more recently, semi-active control of vibrations. New activities at ENEA, which are in progress in the framework of both international and national collaborations, concern the development of new IAS techniques of the aforesaid kinds to be applied to: • civil structures and industrial plants; • cultural heritage structures (CUHESs) to be restored or reconstructed, or masterpieces to be seismically protected. Progress of the work performed for civil and industrial structures has been separately presented at this Conference, while this paper deals with the new development, validation and application activities concerning the IAS techniques applicable to the seismic protection of CUHESs, to which particular attention has been devoted by ENEA for several years. The ongoing activities for CUHESs are being performed in the framework of: • PROSEESM, a national project which foresees pilot applications of the IAS techniques to the restoration of CUHESs damaged by the 1997–98 Marche and Umbria earthquakes; • a feasibilily study for the reconstruction in the original site, with SI and the original masonry materials, of Mevale di Visso, a village in the Marche Region destroyed by the aforesaid event; • a study for the design and application of an innovative three-dimensional SI system for seismic and ambient vibration protection of a roman ship excavated at Ercolano, near Naples.

scholarly journals Comparing Rubber Bearings and Eradi-Quake System for Seismic Isolation of Bridges

Materials ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5247
Author(s):  
Chang Beck Cho ◽  
Young Jin Kim ◽  
Won Jong Chin ◽  
Jin-Young Lee
Keyword(s):  
Seismic Isolation ◽  
New Technology ◽  
Isolation System ◽  
Seismic Safety ◽  
Response Characteristics ◽  
Rubber Bearing ◽  
Seismic Force ◽  
Isolation Systems ◽  
Rubber Bearings ◽  
Seismic Isolation Systems

Seismic isolation systems have been used worldwide in bridge structures to reduce vibration and avoid collapse. The seismic isolator, damper, and Shock Transmission Unit (SUT) are generally adopted in the seismic design of bridges to improve their seismic safety with economic efficiency. There are several seismic isolation systems, such as Natural Rubber Bearing (NRB), Lead Rubber Bearing (LRB), and the Eradi-Quake System (EQS). EQS as a new technology is expected to effectively reduce both seismic force and displacement, but there is still some need to verify whether it might provide an economical and practical strategy for a bridge isolation system. Moreover, it is important to guarantee consistent performance of the isolators by quality control. A comparative evaluation of the basic properties of the available seismic isolators is thus necessary to achieve a balance between cost-effectiveness and the desired performance of the bridge subjected to extreme loading. Accordingly, in this study, the seismic response characteristics of the seismic isolation systems for bridges were investigated by conducting compressive test and compressive-shear test on NRB, LRB, and EQS.

Analyses of Seismic Isolation Systems in Kyrgyzstan

2002 ◽  
Author(s):  
Tynymbek O. Ormonbekov ◽  
Ulugbek T. Begaliev
Keyword(s):  
Active Zone ◽  
Seismic Isolation ◽  
Seismic Protection ◽  
Kyrgyz Republic ◽  
Isolation Systems ◽  
Seismic Isolation Systems

The purpose of the present work is the analysis of existing methods of seismoisolation in the Kyrgyz Republic at which 95% of territory has seismically active zone with intensity 8, 9 and more. Also an opportunity of application of system seismic protection as rubber-metal bearings.

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