Base isolation

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Shake-table testing of two building models at CSUN. The right one is equipped with a base isolation [1].

Base isolation or seismic isolation is a collection of special units in a building resting on its foundation to provide separation of the building from the shaking ground thus improving its seismic performance. Base isolation takes 7 months to build. [1].

Basic parts of base isolation system[edit | edit source]

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[edit | edit source]

History[edit | edit source]

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 [2]. Anyway, to virtually test-drive any design concept of base isolation, some online help is available now [3].

Wikibooks has a book on the topic of Seismic fitness.

Other websites[edit | edit source]

Look up Base isolation in
Wiktionary, the free dictionary.

References[edit | edit source]