Abstract
The post-earthquake assessment and rehabilitation of damaged struc- tures, as also pre-emptive retrofitting of existing vulnerable buildings to resist a future earthquake, call for a systematic engineering approach, involving phases of detailed examination, computer model analyses, evaluation of material behavior and the development of suitable structural upgrading techniques. The task becomes more difficult when irreplaceable and monumental historic structures of antiquity must be made seismically secure. The present paper investigates the challenges posed by, and solutions needed, to ensure the structural longevity of historic struc- tures. Case studies are described where principles stated in the context of achieving longevity for ancient monuments have been implemented.
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