Conservation criteria of Masonry CUltural HEritage Structures (MCUHESs) are often not compatible with correct antiseismic requirements. In fact, the use of conventional methods leads, in most cases, to retrofitting interventions excessively invasive or ineffective. This conflict has been unfortunately demonstrated by the relevant damage found in a large amount of MCUHESs, restored after earthquakes but again seriously struck by subsequent seismic events. Due to those simple statements, a different approach to the question has been pointed out, addressing to the use of modern antiseismic techniques; they can reduce the dynamic actions transmitted by the earthquake, rather than improve the structural resistance. After a detailed diagnostics and monitoring campaign, the Romanesque church of San Giovanni Battista at Apagni (Sellano, Perugia) has been selected as a pilot application of Seismic Isolation (SI) by means of a specific subfoundation system, in order to respect as better as possible the building original features. This paper shows the main steps of the preliminary work and the design proposal.
INNOVATIVE RESTORATION OF THE APAGNI ROMANESQUE CHURCH, DAMAGED BY THE 1997 MARCHE-UMBRIA EARTHQUAKE
VISKOVIC, Alberto;
2004-01-01
Abstract
Conservation criteria of Masonry CUltural HEritage Structures (MCUHESs) are often not compatible with correct antiseismic requirements. In fact, the use of conventional methods leads, in most cases, to retrofitting interventions excessively invasive or ineffective. This conflict has been unfortunately demonstrated by the relevant damage found in a large amount of MCUHESs, restored after earthquakes but again seriously struck by subsequent seismic events. Due to those simple statements, a different approach to the question has been pointed out, addressing to the use of modern antiseismic techniques; they can reduce the dynamic actions transmitted by the earthquake, rather than improve the structural resistance. After a detailed diagnostics and monitoring campaign, the Romanesque church of San Giovanni Battista at Apagni (Sellano, Perugia) has been selected as a pilot application of Seismic Isolation (SI) by means of a specific subfoundation system, in order to respect as better as possible the building original features. This paper shows the main steps of the preliminary work and the design proposal.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
