BOSCATO, GIOSUE 1; CERAVOLO, ROSARIO2; IENTILE, SILVIA3; ECORELLI, MARICA LEONARDA4; QUATTRONE, ANTONINO5; RUSSO, SALVATORE6; ZANOTTI FRAGONARA, LUCA7

1) Dr., IUAV University of Venice, Laboratory of Strength of Materials, gboscato@iuav.it

2) Prof., Politecnico di Torino, Department of Structural, Building and Geotechnical, rosario.ceravolo@polito.it, corresponding author

3) Ms., IUAV University of Venice, Laboratory of Strength of Materials, s.ientile1@stud.iuav.it

4) Ms., Politecnico di Torino, Department of Structural, Building and Geotechnical, marica.pecorelli@polito.it

5) Dr., Politecnico di Torino, Department of Structural, Building and Geotechnical, antonino.quattrone@polito.it

6) Prof., IUAV University of Venice, Laboratory of Strength of Materials, russo@iuav.it

7) Dr., Politecnico di Torino, Department of Structural, Building and Geotechnical, luca.zanottifragonara@polito.it

After the seismic events of May 20th and 29th 2012 in Emilia, an important number of monumental buildings underwent severe damage. In a few structures, partial collapse mechanisms have been observed (i.e. facade tilting, out-of-plane overturning of panels ..). In this paper, the Chiesa del Gesu and the cathedral of Santa Maria Maggiore, both located in Mirandola (Italy), have been selected in order to study typical post-earthquake safety interventions. Indeed, the real effectiveness of seismic repair and rehabilitation is difficult to evaluate because of the intrinsic complexity of post-earthquake scenarios. In order to validate the efficacy of the interventions, dynamic tests have been performed in the pre-intervention and post-intervention conditions, and calibrated FE models have been used as testing tools for assessing the safety levels achieved.

Keywords: post-earthquake safety intervention, Emilia earthquake, model updating, structural identification, cultural heritage