A Comparative Study between RC Frame with Shear Wall and Composite Structure with Respect to RC Frame Using ETABS

Abstract

This study investigates the seismic
performance of three high-rise building
structural systems using ETABS software.
These systems have distinct features and
implications in seismic-prone areas.
The first system is a shear wall-less
Reinforced Concrete (RC) structure, favored
in low seismic regions for its cost-efficiency
but of concern in earthquake-prone areas due
to its limited seismic resilience. The second
system involves a strategically designed RC
building with shear walls at structural
corners, enhancing its ability to withstand
lateral seismic forces and reduce potential
structural damage. The third system is a
Composite structure with composite beams
and columns known for their strength and
flexibility. They efficiently distribute seismic
forces, minimizing structural failure risk
during earthquakes.
The seismic analysis subjects these systems to
simulated seismic forces, examining
performance metrics like lateral
displacement, inter-storey drift. A notable
finding emphasizes the significance of shear
walls in high-rise building design. Data
reveals that the RC structure with
strategically placed shear walls exhibits better
seismic performance, particularly in high
seismic risk areas.
Adherence to the Bangladesh National
Building Code of 2020 standards is crucial for
ensuring seismic compliance and
safeguarding lives and structural integrity
during earthquakes. This research
significantly contributes to enhancing seismic
resilience in high-rise buildings, offering
valuable insights for architects and engineers.
It plays a crucial role in creating safer, more
resilient urban environments by advancing
structural designs and construction practices.
In summary, this study underscores the
critical importance of seismic analysis in
high-rise building design and construction,
highlighting the pivotal role of shear walls in
seismic performance, especially in high-risk
regions. Compliant with the Bangladesh
National Building Code of 2020, this research
advances understanding of seismic resilience
and provides practical guidance for architects
and engineers in high-rise construction within
seismic-prone areas, fostering safer urban
landscapes.