Abstract:
Structural engineers are facing the challenge of striving for the most efficient and economical
design solution. While ensuring that the final design of a building must be serviceable for its
intended function, habitable for its occupants and safe over its design life-time. As the our
country is the fastest growing country across the globe And need of shelter with higher land
cost in major cities like Dhaka where further horizontal expansion is not much possible due
to space shortage, we are left with the solution of vertical expansion. Engineers, designers
and builders are trying to use different materials to their best advantage Keeping in view the
unique properties of each material structurally robust and aesthetically pleasing building Are
being constructed by combining the best properties at individual material & at the same time
meeting Specific requirements of large span, building load, soil condition, time, flexibility &
economy high rise buildings Are best suited solution.
Considering this situation this paper is about the comparison of vulnerability of different
seismic zones in Bangladesh. According to BNBC-1993, Bangladesh is divided in three
different seismic zones. The behaviors of earthquake forces have been analyzed for both
shear wall and without shear wall RCC buildings by ETABS in three 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-3
comparing zone-1 and zone-2.
The Pushover analysis in present study is performed on multistoried frame structures by
using ETABS 2009. To achieve this objective, four buildings (2, 3, 4 and 5) stories were
analyzed. The result are satisfactory for perfectly designed building.
