Modern societies understand built cultural heritage as a landmark of culture anddiversity. Only during the last decades the idea that ancient buildings could be conserved andreused became appealing. Still, a large part of this heritage is affected by structural problemswhich menace the safety of buildings and people. The developments in the areas of inspection,non-destructive testing, monitoring and structural analysis of historical constructions, togetherwith recent guidelines for reuse and conservation, allow for safer, economical and more adequateremedial measures. The paper addresses the issues of the methodology to adopt for thefabric of historic buildings, of the recent research and of some research needs, and of differentcases studies
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