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Bangladesh is situated in an earthquake-active region. It is necessary to identify structures at risk of damage and implement an effective safety standard. This evaluation requires methods beyond simplified linear-elastic approaches. As the number of high-rise buildings is increasing daily, there is an urgent need to design structures considering seismic loading. Although different procedures are possible, to assess how well a structure performs, the non-linear static analysis, also referred to as Pushover Analysis (or collapse analysis), is seen as a practical method. In the present study, four different shapes of multistoried buildings were analyzed according to BNBC 2020. At first, a model was prepared; loading was done and analysis was run using Etabs v16.2.1 (structural analysis and design software). The results show that the effect of lateral loads due to earthquakes is different in the case of different building shapes and how a building behaves during earthquakes is mostly influenced by its overall geometry and shape.
Siddik et al. (Thu,) studied this question.