Author(s)

C. Ceccoli, C. Mazzotti & M. Savoia

Abstract

Seismic analysis of isolated plane R. C. frame structures is performed in the nonlinear range. R. C. structural elements (beam/columns) is divided in subelements, and an hysteretic model is developed. Isolators are modeled as shear-deformable elements with curvilinear branches for loading/unloading. Dissipated energy is evaluated in order to estimate structural damage. The numerical results are compared with those obtained from an extensive experimental dynamic campaign performed on shaking-table on a base-isolated 1/3-scale three-story R. C. building. 1 Introduction Base-isolation is a very promising strategy for the protection of buildings subject to earthquakes and represents a leading field for both theoretical and applied research. In Italy, elastomeric isolators are extensively used for

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