Performance assessment of various seismic resistant systems for a multistory structure in different seismic zones of Bangladesh
Journal of Engineering, Design and Technology
ISSN: 1726-0531
Article publication date: 17 February 2022
Issue publication date: 23 April 2024
Abstract
Purpose
This study aims to present the variations of optimal seismic control of reinforced cement concrete (RCC) structure using different structural systems. Different third-dimensional mathematical models are used to examine the responses of multistory flexibly connected frames subjected to earthquake excitations.
Design/methodology/approach
This paper examined a G + 50 multi-storied high-rise structure, which is analyzed using different combinations of moment resistant frames, shear walls, seismic outrigger systems and seismic dampers to observe the effectiveness during ground motion against soft soil conditions. The damping coefficients of added dampers, providing both upper and lower levels are taken into consideration. A finite element modeling and analysis is generated. Then the nature of the structure exposed to ground motion is captured with response spectrum analysis, using BNBC-2020 for four different seismic zones in Bangladesh.
Findings
The response of the structure is investigated according to the amplitude of the displacements, drifts, base shear, stiffness and torsion. The numerical results indicate that adding dampers at the base level can be the most effective against seismic control. However, placing an outrigger bracing system at the middle and top end with shear wall can be the most effective for controlling displacements and drifts.
Originality/value
The response of high-rise structures to seismic forces in Bangladesh’s soft soil conditions is examined at various levels in this study. This study is an original research which contributes to the knowledge to build earthquake resisting high-rises in Bangladesh.
Keywords
Acknowledgements
The overall analysis of the paper was carried out with the high-speed computer in BIM laboratory in the Department of Building Engineering and Construction Management, Khulna University of Engineering and Technology, Khulna – 9203, Bangladesh.
The authors would like to show gratitude to the laboratory assistant of the BIM laboratory and other associates for supporting during modeling and simulation.
Conflict of interest: On behalf of all authors, the corresponding author states that there is no conflict of interest.
Citation
Sobuz, M.H.R., Meraz, M.M., Saha, A., Akid, A.S.M., Hasan, N.M.S., Rahman, M. and Safayet, M.A. (2024), "Performance assessment of various seismic resistant systems for a multistory structure in different seismic zones of Bangladesh", Journal of Engineering, Design and Technology, Vol. 22 No. 3, pp. 718-738. https://doi.org/10.1108/JEDT-11-2021-0656
Publisher
:Emerald Publishing Limited
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