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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 106
PROCEEDINGS OF THE TWELFTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by:
Paper 224
On the Vulnerability of Low-rise Residential Buildings based on Observations B. Bessason1 and J.Ö. Bjarnason2
1Faculty of Civil and Environmental Engineering, University of Iceland, Reykjavik, Iceland
, "On the Vulnerability of Low-rise Residential Buildings based on Observations", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 224, 2014. doi:10.4203/ccp.106.224
Keywords: vulnerability assessment, fragility curves, non-structural damage, reinforced concrete buildings, timber buildings, monetary loss..
Summary
In May 2008 a shallow Mw6.3 earthquake occurred in South Iceland with its
epicentre close to two small towns in the area. The maximum PGA was registered as
0.88g. A great deal of damage occurred but fortunately there was no loss of life or
serious injuries. Insurance against natural disasters is obligatory for all buildings in
Iceland. After the earthquake a field survey was carried out that covered every
damaged structure in the affected area. The damage data was linked to the official
land registry database, which contains detailed information on all buildings in
Iceland. The data was used to develop probabilistic vulnerability functions and
fragility curves for five types of low-rise building classes, which covers the majority
of all properties in the region. Four intensity levels were used in the analysis. The
damage data was classified into structural and non-structural damage categories and
furthermore listed in a number of subcategories. The main findings were that these
buildings have relatively good earthquake resistance and that the structural damage
was low. Most of the monetary loss was related to non-structural cosmetic damage
of interior walls that needed small repairs and paintwork and flooring that required
replacement.
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