Evaluating earthquake vulnerability using Analytical Hierarchy Process (AHP) and social appraisal of retrofitting in Lalmatia, Dhaka

Scientific paper - Original scientific paper

• Author: Tanzila Shawon Aktar
• Author: Akter Mahmud
• Author: Mohammad Mizanur Rahman
• Author: Michio Ubaura
• Author: Masudur Rashied
• Author's institution: University of Zagreb; Faculty of Civil Engineering
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering

Abstract (english)

Bangladesh is one of the most earthquake vulnerable countries in the world. As Bangladesh is
located near to the boundary of two active plates (Indian plate in the west and Eurasian plate in
the east and north) the country has invariably been under threat of an earthquake that may be
so harmful that may kill people to less than a moment. With the frequency of earthquakes on the
increase, it is natural for people to be scared as specialists consider them to be warning of what lies
ahead. Vulnerability of Lalmatia against earthquakes is stressed using Analytical Hierarchy Process
(AHP) and multi-criterion analysis in this study. The APH allows decision-makers to model a complex
problem in a hierarchical structure showing the relationship of the goal, objectives (criteria), subobjectives, and alternatives. In this method six affecting factors against earthquake vulnerability in
five subcategories has been considered as like as construction year, population, road width, building
use, area of parcel and building vulnerability. The Analytical Hierarchical Process (AHP) model is also
applying for determining the weight and priority of the vulnerability factors contribution to the lives
of individuals. This research finally reveals some buildings that are “very high” vulnerable and refers
to detail assessment for first step plan and some buildings are “high” vulnerable and also refers
to detail assessment in the second step plan. Rest of the buildings are considered less vulnerable
for the screening process. The retrofitting of structural components is conducted for not only an
individual component or groups of components. The good performance of the entire structural
system must be ensured. Retrofitting strategy is determined based on the results of technical
assessment. The indicators and model of this study has contributed in the vulnerability assessment
as well as initiate mitigation efforts against earthquake of Dhaka city.

• Keywords (english): Analytical Hierarchy process (AHP), assessment, earthquake, retrofit, social appraisal, vulnerability
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Unknown
• Publication version: Published version
• Publication title: 1st Croatian Conference on Earthquake Engineering 1CroCEE
• Numbering: pp. 145-156
• p-ISSN: 3043-8071
• DOI: https://doi.org/10.5592/CO/1CroCEE.2021.199
• URN:NBN: urn:nbn:hr:237:114850
• Publication: 2021-03
• Conference: Title: st Croatian Conference on Earthquake Engineering; Location: Zagreb, Croatia; Start date: 2021-03-22; End date: 2021-03-24; Assembly type: Lecture
• Type of resource: Text
• Publisher: Sveučilište u Zagrebu Građevinski fakultet
• Access conditions: Open access
• Created on: 2024-09-02 06:09:34