Within the framework of the EC-funded REEDS Project, innovative energy dissipators aimed at reducing seismic response in city buildings and industrial plants, have been designed, produced and tested. This paper presents the main features of steel hysteretic torsional dampers (SYTDs) designed by FIP Industriale. A particular application of these dampers studied within the REEDS project is their use as part of the base isolation system of a Liquefied Natural Gas storage tank. A scale mock-up of such a structure (4 m diameter, 172 kN weight including 1 m level of liquid) was built and subjected to shake table tests. The development of SYTDs encompassed many tests on both full scale and scaled prototypes using different shapes and materials. Test results showed optimal performance for these device; particularly, in terms of fatigue life and energy dissipation (greater than 70 % efficiency).

Implementation and Validation of Finite Element Models of Steel Hysteretic Torsional Energy Dissipators

Martelli, A.;Forni, M.
2000-01-01

Abstract

Within the framework of the EC-funded REEDS Project, innovative energy dissipators aimed at reducing seismic response in city buildings and industrial plants, have been designed, produced and tested. This paper presents the main features of steel hysteretic torsional dampers (SYTDs) designed by FIP Industriale. A particular application of these dampers studied within the REEDS project is their use as part of the base isolation system of a Liquefied Natural Gas storage tank. A scale mock-up of such a structure (4 m diameter, 172 kN weight including 1 m level of liquid) was built and subjected to shake table tests. The development of SYTDs encompassed many tests on both full scale and scaled prototypes using different shapes and materials. Test results showed optimal performance for these device; particularly, in terms of fatigue life and energy dissipation (greater than 70 % efficiency).
Sistemi antisismici innovativi
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.12079/5995
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