Author(s)

S. Chiostrini, L. Galano, M. Rosi

Abstract

Performance of a distributed base isolation system for masonry buildings S. Chiostrini', L. Galano' & M. Rosi^ ^Department of Civil Engineering, University of Florence, Italy. * Civil Engineer, Florence, Italy. Abstract The paper presents results from a research study on a new distributed base isolation system for masonry buildings. This system consists of a layer of mortar interposed between the top face of foundations and the shear walls base. The mortar layer is reinforced with vertical mild steel bars, anchored both to masonry walls and to subside concrete of foundations. The proposed system is simple and inexpensive and it is capable of high degree of protection. To demonstrate its effectiveness, the seismic response of a masonry building is investigated by simplified 2 DOFs mathematical model performing numerical analyses in the time domain. Parameters involved in this study were: the fixed-base natural period of the building, the mass ratio, the isolation degree and, th

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