Ricerc@Sapienza

The Leaning Bell Tower of Pisa (Italy) – built between 1173 and 1370 – is included within the list of the World Heritage Sites by UNESCO since 1987. In the past years, the Tower and the underlying soil have undergone many interventions in the attempt to reduce and stop definitely its inclination. The Tower was also equipped with a sensor network in-tended for seismic monitoring, which recorded the dynamic response of the monument un-der some far-field earthquakes.

The protection of historical monuments from road and subway traffic vibrations is an important responsibility for the administrations of many cities. The structural health of monuments is threatened both by the effects of short-term vibrations due to construction activities and by the consequences of long-term vibrations induced by vehicles and subways. The most important historical constructions are often endowed with monitoring systems to measure and analyze these effects.