Smart technologies in the seismic protection of existing buildings - Part 2 : applications

Abstract

Some solutions concerning smart intervention techniques for dissipate a share of the input seismic energy compatible with the preservation of existing buildings are presented herein. Typical schemes of long-bay box-like masonry building fitted with dissipative floating roof and r.c. braced frame are analyzed. In this context, the effectiveness of the system can be maximized by means of active or semi-active devices implemented in the floating roof as well as in the braces, leading to a significant reduction of the seismic impact on the building compared with non-controlled or simply passively controlled structure. In the examined cases a wide numerical simulation analysis has shown the achievement of a very satisfying performance. The results prove the remarkable increase of the energy dissipation capability of the system, as well as the potential reduction of structural damage, independently of any specific strengthening intervention.