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Vulnerability assessment of Hassan Bey’s Mansion in Rhodes


The paper presents the vulnerability assessment of the Hassan Bey’s Mansion, located in the Medieval City of Rhodes in Greece. To this aim, the procedure developed in PERPETUATE project for the seismic assessment at scale of a single monument is adopted: it follows the performance—based concept making use of nonlinear static analyses. The main outcome of the assessment is presented in the paper in terms of maximum seismic intensity measure (the one selected as the most representative for the examined asset) compatible to various performance levels: it is used to address also the rehabilitation decisions. Within this context, the attention of this paper is focused on the use of sensitivity analysis for the identification of the main parameters that affect the structural response. Uncertainties considered in this application are both aleatory and epistemic. The epistemic uncertainties concern the effectiveness of the infilled openings: in fact, this feature strongly characterizes this building that has been subjected to many transformations along its life. Moreover, seven random variables have been considered to account for the aleatory uncertainties: they involve the material properties, the material constitutive law as well as floor rigidity. A total of 60 nonlinear static analyses have been performed for the sensitivity analysis, which represents a powerful tool for setting-up a possible investigation plan and addresses the final assessment. The resulting safety factor, computed in terms of return period, varies from 0.20 to 0.27, highlighting that the structure is not able to satisfy the target performance levels. Possible rehabilitation measures are proposed afterwards, in particular by quantitatively assessing the effect associated to the stiffening of diaphragms (very flexible in the original state).

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The research leading to these results has received funding from the European Community’s Seventh Framework Programme (FP7/2007–2013) under grant agreement \(\hbox {n}^{\circ }244229\) ( The authors are grateful to ”Foundation for the Financial Administration and Realization of Archaeological Projects” of Ministry of Cultures of Greece, and to Dr. Georgios Ntellas and Emmanuil Kallioudakis for supporting and providing data for the monuments of the Medieval City of Rhodes in Greece.

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Cattari, S., Lagomarsino, S., Karatzetzou, A. et al. Vulnerability assessment of Hassan Bey’s Mansion in Rhodes. Bull Earthquake Eng 13, 347–368 (2015).

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  • Performance-based assessment
  • Masonry
  • Sensitivity analysis
  • Nonlinear analyses