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| Titel |
Rockfall vulnerability assessment for reinforced concrete buildings |
| VerfasserIn |
O. Mavrouli, J. Corominas |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 10, no. 10 ; Nr. 10, no. 10 (2010-10-06), S.2055-2066 |
| Datensatznummer |
250008440
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| Publikation (Nr.) |
 copernicus.org/nhess-10-2055-2010.pdf |
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| Zusammenfassung |
| The vulnerability of buildings to the impact of rockfalls is a topic that
has recently attracted increasing attention in the scientific literature. The quantification of the vulnerability, when based on empirical or
heuristic approaches requires data recorded from historical rockfalls, which
are not always available. This is the reason why appropriate alternatives
are required. The use of analytical and numerical models can be one of them.
In this paper, a methodology is proposed for the analytical evaluation of
the vulnerability of reinforced concrete buildings. The vulnerability is
included in the risk equation by incorporating the uncertainty of the impact
location of the rock block and the subsequent damage level. The output is a
weighted vulnerability that ranges from 0 to 1 and expresses the potential
damage that a rock block causes to a building in function of its velocity
and size. The vulnerability is calculated by the sum of the products of the
probability of block impact on each element of the building and its
associated damage state, the latter expressed in relative recovery cost
terms. The probability of exceeding a specific damage state such as
non-structural, local, partial, extensive or total collapse is also
important for the quantification of risk and to this purpose, several sets
of fragility curves for various rock diameters and increasing velocities
have been prepared. An example is shown for the case of a simple reinforced
concrete building and impact energies from 0 to 4075 kJ. |
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