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Basic parts of base isolation system
Base isolation system consists of isolation units with or without isolation components, where:
1. Isolation units are the basic elements of base isolation system which provide the mentioned separation effect to a building structure.
2. Isolation components are the connections between isolation units and other parts of the building having no separation effect of their own.
Famous base-isolated buildings
Pasadena City Hall, California
San Francisco City Hall, California
Salt Lake City and County Building, Utah
From the very beginning, the theory of base isolation rested on two pillars: heavy damping and frequency separation. Unfortunately, nobody paid any attention that the heavy damping was a sort of a strong connection between a substructure and superstructure, and that the idea of decoupling them with the help of such connections was of no good. Anyway, to virtually test-drive any design concept of base isolation, some online help is available now.