Research Article
Comparative Analysis of Seismic Performance of RC Buildings with Variation of Column Size and Orientation
Issue:
Volume 13, Issue 1, February 2025
Pages:
1-9
Received:
16 December 2024
Accepted:
26 December 2024
Published:
14 January 2025
DOI:
10.11648/j.ajce.20251301.11
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Abstract: Enhancement of the seismic performance of RC structures plays an essential role in a country like Bangladesh, which is among the world's most tectonically active regions. In this study, G+5 storey residential building is chosen, which is situated in Rangpur City. This structure is modified into four categories based on the column size and orientation like B1 for original building, B2 for all the column are of same dimension, B3 for orientation in X direction and B4 for orientation in Y direction. For simplification, linear time history analysis is considered in dynamic analysis for all the buildings where the ground motion is taken ‘El Centro earthquake’ from the PEER Ground Motion Database. The result is evaluated based on lateral displacement, storey drift and base shear. In terms of lateral displacement and storey drift, the building B3, showed the least value for the X component of both earthquake EQx and EQy. On the other hand, the same building B3 showed the largest value for the Y component, while building B2 showed the least. This can be because of the increased rigidity of all the columns for the highest dimension in building B2 in the Y direction. Also, the same response is observed in peak-to-peak displacement. But for the base shear, building B2 showed the highest value for all cases due to the increase in building weight by 2.64%. The research showed building B2 showing optimum seismic performance against earthquake force from any direction. Also increace in seismic weight for building B2 helps in earthquake resistivity.
Abstract: Enhancement of the seismic performance of RC structures plays an essential role in a country like Bangladesh, which is among the world's most tectonically active regions. In this study, G+5 storey residential building is chosen, which is situated in Rangpur City. This structure is modified into four categories based on the column size and orientati...
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,
Md. Robiul Awall
