| dc.description.abstract | Bangladesh is located in a seismically active region and the ground shakes during an
earthquake. As a result, the base of a building experiences movement. Therefore, it is necessary
to ensure that structures are adequately designed to resist horizontal loads. By following BNBC
guidelines the risk of failure in newly built infrastructure due to wind and earthquake loads can
be minimized. According to the latest Bangladesh National Building Code 2020 (BNBC 2020),
the country has been divided into four seismic zones: Zone-I (low seismic intensity), Zone-II
(moderate), Zone-III (severe) and Zone-IV (very severe). Each zone has a different seismic
coefficient. This paper compares seismic zone analysis of a multi-story (G+9) residential
building across all four seismic zones, both with and without shear walls. The main objective
is to examine how the building responds to earthquakes under the updated seismic zoning and
to evaluate the effects of shear wall placement. Four locations representing the four seismic
zones are considered: Rajshahi (Zone-I), Dhaka (Zone-II), Rangpur (Zone-III) and Sylhet
(Zone-IV). Structural analysis is carried out using ETABS (Extended Three-Dimensional
Analysis of Building Systems), focusing on story displacement, drift, stiffness and other key
parameters. The results show that incorporating shear walls has a significant effect on building
design, reducing displacement and improving overall structural stability. | en_US |
