Seismic Vulnerability Assessment Of Residential Building At Dhaka City , Bangladesh Using FEMA 154

Abstract

The seismic performance of private residential buildings is of high importance because of their exceptional occupancy and their significant role after any natural disaster. Bangladesh is highly vulnerable to earthquakes because of its proximity to the boundary of tectonic plates and fault lines. Dhaka is a major leading city and business capital of Bangladesh which is positioned in the south-eastern part of the country and falls in the moderate seismic zone according to Bangladesh building code (BNBC, 2015 draft) with a seismic zone coefficient of 0.28 g based on 2% probability in 50 years. In this city, most of the private residential buildings were built before the implementation of the seismic code. Therefore, it is necessary to investigate the seismic performance of existing buildings in private residential buildings in Dhaka City. In the present study, a structural record of existing private residential building buildings in the Dhaka City Corporation area has been developed. The seismic vulnerability of these buildings has been evaluated by using FEMA 154. The result of the study shows that a total 30 buildings of private residential buildings in Dhaka City Corporation are safe against probable earthquakes and 216 buildings require more specified analysis to evaluate the level of actual risk