- Analytically Derived Fragility Curves for Unreinforced Masonry Buildings in Urban Contexts
- D. D’Ayala ; E. Kishali
- Book Title / Journal: Proceedings of the 15th World Conference on Earthquake Engineering, Lisbon, Portugal
- Year: 2012 , Volume: , Series:
- Earthquake engineering
- Keywords: Vulnerability functions ; masonry ; performance based assessment
- Description
- Masonry buildings are the most common form of dwelling worldwide and at the same time one of the most vulnerable to seismic action. Large numbers of casualties and substantial economic losses are associated with masonry building partial and total collapses in urban and rural areas. Usually studies of vulnerability of masonry structures are conducted within an empirical framework, based on past observation and historic damage data. However empirical approaches have limitation in terms of regional applicability and comparison among different
typological and geographical context. The paper presents an analytical approach, FaMIVE, based on limit state analysis, which allows defining capacity curves and performance points for masonry structures. The analytical development of the procedure from derivation of the ultimate capacity to the identification of the damage states in terms of drift, to the convolution of the capacity and spectral curves to identify performance points for given level of shaking is presented. Fragility curves are then derived. An application to masonry structures in Turkey shows the advantages of this approach. This work was carried out within the framework of the WHE-PAGER project (http://pager.world-housing.net/)
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