Casualty Estimation Through Assessment Of Volume Loss And External Debris Spread In Building Collapse
View / Open Files
Conference Name
16th European Conference on Earthquake Engineering
Type
Conference Object
Metadata
Show full item recordCitation
So, E., Baker, H., & Spence, R. Casualty Estimation Through Assessment Of Volume Loss And External Debris Spread In Building Collapse. 16th European Conference on Earthquake Engineering. https://doi.org/10.17863/CAM.30162
Abstract
The paper proposes a new approach to the estimation of casualties in buildings damaged in earthquakes, based on an understanding of the volume loss within the building and the spread of debris beyond the envelope of the building. The study starts by developing a set of estimated relationships between lethality rates and volume loss for different common building types, derived from expert judgement based on reported casualty rates worldwide, and on experience of the causative collapse mechanisms, and the associated volume loss. Three datasets have then been compiled based on worldwide earthquakes. Firstly, a dataset of the causes of death and injury for more than 8300 earthquake victims has been assembled. The dataset records, for each affected individual, the type, level and location of injury, the type of building and its damage state. Secondly, using an earthquake damage photographic database, a subset of more than 450 heavily damaged buildings has been selected and these have been analysed to estimate the volume loss, and to associate volume loss for buildings with very heavy damage and collapse with different construction types and collapse mechanisms. Lastly, to assess potential casualties from external falling hazards (chimneys, parapets etc.), a further study of 361 severely damaged buildings recorded in the photographic database was carried out, to identify the extent and type of external debris generated, and its relationship to building type, damage state and damage mechanism. In conclusion, the paper discusses how volume loss and debris characteristics could be estimated as a standard component of fragility estimation in order to improve reliability of human casualty estimation in earthquake loss models.
Identifiers
External DOI: https://doi.org/10.17863/CAM.30162
This record's URL: https://www.repository.cam.ac.uk/handle/1810/282798
Rights
Licence:
http://www.rioxx.net/licenses/all-rights-reserved
Statistics
Total file downloads (since January 2020). For more information on metrics see the
IRUS guide.
Recommended or similar items
The current recommendation prototype on the Apollo Repository will be turned off on 03 February 2023. Although the pilot has been fruitful for both parties, the service provider IKVA is focusing on horizon scanning products and so the recommender service can no longer be supported. We recognise the importance of recommender services in supporting research discovery and are evaluating offerings from other service providers. If you would like to offer feedback on this decision please contact us on: support@repository.cam.ac.uk