Earthquake Isolation Method with Variable Natural Frequency: With Introductory Notes on the Seismic Isolation Methodology / Con Note Introduttive sulla Metodologia dell'Isolamento Sismico

This monographic study is interested in ‘Earthquake Isolation’, which represents – as everybody knows – a well specify and also considerable technical aspect of Seismic Engineering. I wish to point out that the motivation, for which I decided to publish this essay, is not only of popular nature, but also and above all of concrete applicability. In fact, as far as the described method was already for several times proposed to International Conferences on Earthquake Engineering – both as a summary and as a paper, receiving the widest assent to the presentation and to the publication in the relative congress Acts from the Experts’ Committees for the evaluation – however it remained ‘anchored’ at the pages of the Acts without emerging in order to one’s prerogatives of effectiveness, simplicity and operating concreteness. So I hope that, with the current publication, destined for obvious cultural reason to a well selected class of specialists in the field of the Earthquake Isolation, the described method can reach the desirable aim, that is to come out of the ambit tightly of stalemate in which it has been for several years for aspiring to the reaching of its fundamental purpose, that is the application for public usefulness. The above, however, not without submitting the method of proposed isolation to further analytical checks and, above all, to indispensable experimental tests.