| dc.description.abstract | This thesis presents a comparative structural analysis of a 45-storey mixed-use
(residential-commercial) reinforced concrete building, designed according to two
versions of the Bangladesh National Building Code—BNBC 2006 and BNBC 2020.
The building consists of commercial spaces at the front portion and residential units at
the rear. The study aims to evaluate the structural design differences between the two
codes, particularly in terms of seismic performance, load requirements, and overall
safety. Using ETABS software, both models were analyzed with consistent building
geometry, material properties, and load combinations. The results reveal that BNBC
2020 incorporates more rigorous seismic and structural guidelines, resulting in
increased base shear, larger structural members, and potentially higher construction
costs. Nevertheless, these changes significantly improve structural integrity and
occupant safety. This research underscores the importance of adopting the updated
code for the safe and efficient design of high-rise mixed-use buildings in Bangladesh. | en_US |
