Comparison of the collapse frequency and failure probability of buildings

In a previous study, the collapse frequencies and associated mortalities of buildings were compiled based on various publications. The investigation showed a considerable scattering of collapse frequencies depending on the countries. In this paper, the collapse frequencies determined for buildings a...

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Main Authors: Dirk Proske, Michael Schmid
Format: Article
Language:English
Published: CTU Central Library 2022-08-01
Series:Acta Polytechnica CTU Proceedings
Subjects:
Online Access:https://ojs.cvut.cz/ojs/index.php/APP/article/view/8414
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author Dirk Proske
Michael Schmid
author_facet Dirk Proske
Michael Schmid
author_sort Dirk Proske
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description In a previous study, the collapse frequencies and associated mortalities of buildings were compiled based on various publications. The investigation showed a considerable scattering of collapse frequencies depending on the countries. In this paper, the collapse frequencies determined for buildings are compared with the results of probabilistic calculations. Such comparisons have already been carried out for bridges, dams, tunnels and retaining walls including the consideration of central estimators and standard deviations. In order to limit the scatter, the probabilities of failure for buildings were subdivided into the different causes of failure, and collapse frequencies were subdivided into different countries and geographical regions. Overall, the comparison shows that the probabilities of failure are on overage larger than the observed collapse frequencies. Furthermore, the comparison shows are large span, which is unusual for other types of structures. Of concern are the high observed collapse frequencies in various developing countries. Human error, lack of training, etc. are often cited as the cause. Should this correspond to the facts, the basic safety concept of modern building standards, which generally excludes human error, would only be applicable in these regions to a limited extent. However, the investigation includes some limitations, such as different safety targets in different standards and different years of constructions, which are not considered. Further work is required.
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spelling doaj.art-1722443125d143d9ae5c8cbd332a3baa2022-12-22T04:04:48ZengCTU Central LibraryActa Polytechnica CTU Proceedings2336-53822022-08-013616116610.14311/APP.2022.36.01615654Comparison of the collapse frequency and failure probability of buildingsDirk Proske0Michael Schmid1Bern University of Applied Science, School of Architecture, Wood and Civil Engineering, Pestalozzistrasse 20, 3401 Burgdorf, SwitzerlandRothpletz, Lienhard + Cie AG Projektierende Bauingenieure SIA, Blumenberggasse 50, 3013 Bern, SwitzerlandIn a previous study, the collapse frequencies and associated mortalities of buildings were compiled based on various publications. The investigation showed a considerable scattering of collapse frequencies depending on the countries. In this paper, the collapse frequencies determined for buildings are compared with the results of probabilistic calculations. Such comparisons have already been carried out for bridges, dams, tunnels and retaining walls including the consideration of central estimators and standard deviations. In order to limit the scatter, the probabilities of failure for buildings were subdivided into the different causes of failure, and collapse frequencies were subdivided into different countries and geographical regions. Overall, the comparison shows that the probabilities of failure are on overage larger than the observed collapse frequencies. Furthermore, the comparison shows are large span, which is unusual for other types of structures. Of concern are the high observed collapse frequencies in various developing countries. Human error, lack of training, etc. are often cited as the cause. Should this correspond to the facts, the basic safety concept of modern building standards, which generally excludes human error, would only be applicable in these regions to a limited extent. However, the investigation includes some limitations, such as different safety targets in different standards and different years of constructions, which are not considered. Further work is required.https://ojs.cvut.cz/ojs/index.php/APP/article/view/8414buildingscollapsecollapse frequencyprobability of failure
spellingShingle Dirk Proske
Michael Schmid
Comparison of the collapse frequency and failure probability of buildings
Acta Polytechnica CTU Proceedings
buildings
collapse
collapse frequency
probability of failure
title Comparison of the collapse frequency and failure probability of buildings
title_full Comparison of the collapse frequency and failure probability of buildings
title_fullStr Comparison of the collapse frequency and failure probability of buildings
title_full_unstemmed Comparison of the collapse frequency and failure probability of buildings
title_short Comparison of the collapse frequency and failure probability of buildings
title_sort comparison of the collapse frequency and failure probability of buildings
topic buildings
collapse
collapse frequency
probability of failure
url https://ojs.cvut.cz/ojs/index.php/APP/article/view/8414
work_keys_str_mv AT dirkproske comparisonofthecollapsefrequencyandfailureprobabilityofbuildings
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