Speakers
Description
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), sub-objectives, 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 | Analytical Hierarchy Process, Assessment, Earthquake, Retrofit, Social Appraisal, Vu |
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DOI | https://doi.org/10.5592/CO/1CroCEE.2021.199 |