Authors :
Ibnul Warah; Arifujjaman; Ashraful Alam; Mohaiminul Hassan; Syed Ahmed Tasnim
Volume/Issue :
Volume 9 - 2024, Issue 1 - January
Google Scholar :
http://tinyurl.com/mryd6vkj
Scribd :
http://tinyurl.com/ymznxrkz
DOI :
https://doi.org/10.5281/zenodo.10539128
Abstract :
Bangladesh is a moderately seismic active
region in the world. Due to the unplanned pattern of
construction, many buildings have been built without
proper seismic consideration. In this situation, it is
necessary to evaluate the seismic performance of the
existing buildings.
The study aims to evaluate the seismic performance
of Reinforced Concrete (RC) frame buildings considering
the effect of infill brick masonry designed by the previous
code. In Bangladesh, the load-bearing capacity of
masonry walls is not considered during structural design.
But masonry infills have a vital role in the seismic
performance of RC frame buildings. This study compares
the building performance of infilled walls using non-
linear static pushover and response history analysis using
STERA software. RC structures are considered to get
analytical results of story drift due to the application of
artificial ground motions. Also, capacity spectrum
method is conducted after considering the hysteresis
damping effect to determine the performance point.
Therefore, all the simulations and analyses have been
performed as per both previous and updated seismic
codes.
From this study, it was obtained that the quality of
masonry infill walls significantly affects building
performance. Instead of being a brittle element, the infill
masonry walls change the seismic behavior and influences
the seismic capacity, story drift, and displacement.
Therefore, consideration of masonry walls is advisable for
both the new design of buildings and the assessment of
existing structures.
Keywords :
Seismic Performance, Masonry Infill, Seismic Code, Artificial Ground Motion.
Bangladesh is a moderately seismic active
region in the world. Due to the unplanned pattern of
construction, many buildings have been built without
proper seismic consideration. In this situation, it is
necessary to evaluate the seismic performance of the
existing buildings.
The study aims to evaluate the seismic performance
of Reinforced Concrete (RC) frame buildings considering
the effect of infill brick masonry designed by the previous
code. In Bangladesh, the load-bearing capacity of
masonry walls is not considered during structural design.
But masonry infills have a vital role in the seismic
performance of RC frame buildings. This study compares
the building performance of infilled walls using non-
linear static pushover and response history analysis using
STERA software. RC structures are considered to get
analytical results of story drift due to the application of
artificial ground motions. Also, capacity spectrum
method is conducted after considering the hysteresis
damping effect to determine the performance point.
Therefore, all the simulations and analyses have been
performed as per both previous and updated seismic
codes.
From this study, it was obtained that the quality of
masonry infill walls significantly affects building
performance. Instead of being a brittle element, the infill
masonry walls change the seismic behavior and influences
the seismic capacity, story drift, and displacement.
Therefore, consideration of masonry walls is advisable for
both the new design of buildings and the assessment of
existing structures.
Keywords :
Seismic Performance, Masonry Infill, Seismic Code, Artificial Ground Motion.
