Journal
BULLETIN OF EARTHQUAKE ENGINEERING
Volume 11, Issue 5, Pages 1817-1840Publisher
SPRINGER
DOI: 10.1007/s10518-013-9441-8
Keywords
Cultural heritage; Seismic assessment; Risk mitigation technique; Isolation devices; Art objects
Funding
- Ministry of Cultural Heritage and Activities
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The opportunity and the advantages of applying base isolation technologies developed for civil structures to small objects are investigated and some considerations related to the scale effects are discussed. A series of experimental tests carried out at SRMD facility in San Diego are presented with the aim to investigate the dynamic response of a system designed to simulate a sculpture isolated by means of Double Concave Curved Surface Sliders. Such devices are specifically re-designed to fit the peculiar situation of light weight objects. In particular the samples used in the experimentation are designed with geometric and inertia characteristics fit for representing the Michelangelo's sculptures exposed at the Galleria dell'Accademia in Florence, Italy. Finally, the main aspects concerning the numerical simulation of the seismic response of the proposed isolated system are discussed, also to investigate the efficiency of the existing numerical models, which are developed for traditional devices, when they are applied on such small and particular objects. The results of the experimental/numerical campaign show a general efficiency of the isolation system in terms of limiting the transferred action. Further study is needed to understand more clearly some local unexpected phenomena emerged from the experimental tests.
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