Seismic Early Warning Systems for Strategic Infrastructures and Cuhes

Abstract eng:
The research activities described in this paper have been oriented to increase the capability of early detection and identification of extreme natural events of Geological, Atmospheric and Hydro-geological origin like earthquake, storms, floods and fires. The scope of this research1 was to increase the protection of relevant Cultural Heritage goods or strategic infrastructures through the development of advanced monitoring technologies of Seismic Early Warning and new anti seismic devices activated by the SEW signals. A demonstration program with prototypical applications has defined to assess the paradigmatic architecture and standards for the innovative integration of different capability, technologies and disciplines to prove the operational effectiveness of the early protection for the selected relevant infrastructures and CUHES. The limit state verification of the structural response for existing or new constructions is a well defined task of the anti seismic standards and regulations. However, for some relevant strategic infrastructure and CUHES the serviceability level design should be inadequate with respect the absolute value of some relevant works of art, specially when is imperative to protect them against any, even small, damage to avoid catastrophic consequences or preserve to the future generations. The David of Michelangelo in Firenze, Italy is a typical example of “relevant” statue necessitating 100% seismic protection. Also some gas pipeline infrastructures could request the maximum level of seismic protection. The objective of this research is to study the possible configuration of Seismic Early Warning to protect those types of structures. The nesting of dedicated net of single-station monitoring systems for the selected infrastructures within the regional early warning sensors network is analyzed to activate the protection devices of a statue like the David of Michelangelo and the fire protection system of oil extraction fields and pipeline in Val D’Agri, Basilicata, Italy. A new dedicated system of devices to protect the “David di Michelangelo” based on the use of very low dissipative ceramic antiseismic devices activated by a SEW system has been developed.

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