VULNERABILITY ANALYSIS OF THE HISTORICAL BUILDINGS IN SEISMIC AREA BY A MULTILEVEL APPROACH

An investigation procedure is proposed by the authors to study the vulnerability of the diffuse historic building patrimony in seismic area previously considered as minor, but meaningful testimonies of cultural heritage. The research suggests a "minimal" investigation program, which can support the designers in their projects. The knowledge of existing buildings is approached by considering different analysis levels: history, materials, structural morphology of the wall section, observed damage mechanisms, effectiveness of retrofitting techniques. The methodology, calibrated on four historic centres situated in Umbria (Italy), allowed to define an abacus of the typical collapse mechanisms. This procedure is useful to define the seismic vulnerability also for other similar centres and to critically evaluate the past and future repair techniques.

[1]  Maria Rosa Valluzzi,et al.  Analysis of the seismic vulnerability of masonry buildings in historical centres and intervention proposals , 2004 .

[2]  Antonella Saisi,et al.  INVESTIGATION PROCEDURES FOR THE DIAGNOSIS OF HISTORIC MASONRIES , 2000 .

[3]  Giuliana Cardani.  La vulnerabilità sismica dei centri storici: il caso di Campi Alto di Norcia, Linee guida per la diagnosi finalizzata alla scelta delle tecniche di intervento per la prevenzione dei danni. , 2004 .

[4]  Antonella Saisi,et al.  Guidelines for restoration and improvement of historical centers in seismic regions: the Umbria experience , 2004 .

[5]  G. Cardani,et al.  Seismic vulnerability methods for masonry buildings in historical centres: validation and application for prediction analyses and intervention proposals , 2006 .

[6]  Antonella Saisi,et al.  Historic Masonry Buildings: Necessity of a Classification of Structures and Masonries for the Adequate Choice of Analytical Model , 2003 .

[7]  D. PENAZZI,et al.  Repair and strengthening of historic masonry building in seismic area , 2001 .

[8]  Antonella Saisi,et al.  Multilevel Approach to the Analysis of the Historical Buildings: Application to Four Centers in Seismic Area Finalised to the Evaluation of the Repair and Strengthening Techniques , 2004 .

[9]  C. Modena,et al.  Modellazione del comportamento di edifici in muratura sotto azioni sismiche: l’esperienza Umbria –Marche , 2001 .

[10]  Antonella Saisi,et al.  Performance of some repair and strengthening techniques applied to historical stone masonries in seismic areas , 2003 .