Seismic Vulnerability Analysis of Masonry Churches in Piemonte after 2003 Valle Scrivia Earthquake: Post-event Screening and Situation 17 Years Later

ABSTRACT

The presented study aims to describe the seismic vulnerability of a sample made by 90 masonry one-nave churches, subjected to the Valle Scrivia Earthquake, 2003, Piemonte, Italy. In particular, the paper reports analyses performed looking at two different moments: (a) situation after the seismic event, identified through the data collection of the post-earthquake surveys; and (b) situation after 17 years, defined after new in-situ surveys on a subset made by 20 masonry churches. For the first part, damage and vulnerability analyses have been performed on a statistical basis, by employing macroseismic intensity and peak ground acceleration as intensity measures. For the second part, a comparison between the vulnerability states in the two periods investigated has been proposed, by focusing on the effects of detected interventions on site.

KEYWORDS:

• Masonry churches
• cultural heritage
• seismic damage
• vulnerability assessment
• post-earthquake interventions

Acknowledgments

The authors would like to thank the Piemonte Region for the data provided, the object of all the elaborations made and shown in this paper.

Disclosure statement

No potential conflict of interest was reported by the authors.