Civil Engineering Association

The main goal of the base-isolated technology is to shift the natural period of structure away from the dominant period of earthquake excitation. Using a linear one-degree-of-freedom model for structure with fixed base and a non-linear one-degree-of-freedom model for base-isolated structure one presents some remarks for optimum choice of the isolated natural period taking into account the non-linear characteristics of the devices and materials from isolator layer and from site materials.

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