A Comparatives Study On Seismic Analysis Of A (G+9) 10 Storied Residential Bulding For Different Zones In Bangladesh Using Etabs According To BNBC 2020

Abstract

The earthquake, which has the greatest impact on both human life and built infrastructure, is the most devastating and unpredictably occurring natural occurrence. A structure can suffer severe damage as a result of seismic forces brought on by earthquakes, which frequently result in structural collapse. Since the day it became a reality, earthquakes have today become a threat to human advancement. According to previous earthquakes, a significant number of structures have unquestionably suffered damage as a result of earthquakes. Due to the spread of earthquake-prone regions, earthquake analysis is now one of the most important factors in the planning of any structure. Bangladesh is especially vulnerable to earthquake activity. Because of this, it is now crucial to choose seismic reactions over constructions in various zones. This study examines the design and analysis of a (G+9) 10 storied residential structure that is situated in Bangladesh's Zone I, Zone II, Zone III, and Zone IV seismic zones. In this study, BNBC 2020 and ETABS 2018 are used to analyze the seismic response and stability of residential buildings against extreme earthquakes or seismic conditions. This research defined the base shear, torsional irregularity, story drift, and story displacement of various seismic zones in Bangladesh and presents the comparative analysis. The highest story drift, story displacement and base shear were found in Zone IV (Habiganj), then Zone II (Dhaka), then Zone III (Tangail), then Zone I (Pirojpur). Torsion irregularity was same and normal for all zones. The design was ok for all seismic zones in Bangladesh. According to research, whenever the seismic coefficients increase, the seismic effects also increase. Eventually alternative things are happened due to other coefficients such as Zone II (Dhaka). Finally, we can state that the research work helps to solidify our understanding of the analysis and design of structures under seismic influences.