| dc.description.abstract | The rapid urban growth is causing further deterioration and increasing the vulnerability
of human lives, economy and infrastructures. When natural hazard like earthquake will
hit this large metropolitan city, it may create catastrophe and the whole country may
suffer. One of the major challenges is to reduce the vulnerability caused by earthquake
by taking necessary steps. At the same time, it is very much essential to develop an
effective earthquake risk management plan, which requires long-term plan of action
and involves multidisciplinary contribution. Considering this situation this paper is
about the comparison of vulnerability of different seismic zones in Bangladesh. The
properties of beams and columns are used from BNBC-2020 in ETABS model. The
building's base shear design is compared to the earthquake base shear design. The
global response of the structure is also examined for estimating the safety of the
building under demand earthquake loading in terms of capacity curve, hinge placement,
and ductility ratio. The current practice of seismic design is limited to demand
estimation and analysis and thus cannot guarantee that the design structure meets the
initial objectives.
According to BNBC-2020, Bangladesh is divided in four different seismic zones. The
behaviors of earthquake forces have been analyzed for both shear wall and without
shear wall RCC buildings by ETABS in four different seismic zones. The study shows
shear wall buildings performs well than without shear wall buildings in different
seismic zones. The base shear, base moment and drifts are higher in zone-4 comparing
zone-1, zone-2 and zone-3 | en_US |
