Impact of retrofitting work on vulnerability reduction of local buildings in Kabul, Afghanistan

Jàmbá: Journal of Disaster Risk Studies

 
 
Field Value
 
Title Impact of retrofitting work on vulnerability reduction of local buildings in Kabul, Afghanistan
 
Creator Mohammadi, Mohsen Fujimi, Toshio
 
Subject — retrofitting; non-engineered buildings; training; local masons; Kabul; damage ratio; behaviour modifier factor; vulnerability index.
Description Rapid urbanisation of Afghan cities without proper construction regulation has exposed their population to a high risk of damage from disasters such as earthquakes. With the growing construction of local non-engineered buildings and an existing level of hazard of 0.8 g, a high risk of casualties and building damage threatens Kabul in the event of a disaster. This study reports and evaluates a recent retrofitting project in Kabul City by ‘Project for City Resilience’, carried out under the supervision of the United Nation Human Settlements Program (UN-Habitat) for 48 retrofitted sun-dried clay brick masonry buildings in Kabul. The project was executed by local masons and welders who were trained as a part of the project, and the main tasks included installation of an additional steel frame, additional reinforced concrete foundation ring, ceiling replacement and wall strengthening (via mesh and plaster). After a visual assessment of retrofitted buildings considering the original retrofitting design and actual work done, a vulnerability index for retrofitted buildings was developed based on a behaviour modifier factor, which was assigned to each retrofitting activity using a combination of values and a proportion of scores for each retrofitting activity. The results indicate that training of local masons and welders to undertake retrofitting activities could decrease the damage ratio by 15% – 20% for peak ground acceleration values of 0.3 g and higher. The methods mentioned in this study can be used to make existing sun-dried clay brick masonry buildings sufficiently resistant to earthquakes of moderate-to-severe intensity.
 
Publisher AOSIS
 
Contributor
Date 2021-06-24
 
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion — —
Format text/html application/epub+zip text/xml application/pdf application/pdf
Identifier 10.4102/jamba.v13i1.1062
 
Source Jàmbá: Journal of Disaster Risk Studies; Vol 13, No 1 (2021); 13 pages 1996-1421 2072-845X
 
Language eng
 
Relation
The following web links (URLs) may trigger a file download or direct you to an alternative webpage to gain access to a publication file format of the published article:

https://jamba.org.za/index.php/jamba/article/view/1062/1951 https://jamba.org.za/index.php/jamba/article/view/1062/1952 https://jamba.org.za/index.php/jamba/article/view/1062/1953 https://jamba.org.za/index.php/jamba/article/view/1062/1964 https://jamba.org.za/index.php/jamba/article/view/1062/1954
 
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Rights Copyright (c) 2021 Mohsen Mohammadi, Toshio Fujimi https://creativecommons.org/licenses/by/4.0
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