Chowdhury, S., Banerjee, A. and Adhikari, S. (2023) Optimal design of inertial amplifier base isolators for dynamic response control of multi-storey buildings. International Journal of Structural Stability and Dynamics, 23(5), 2350047. (doi: 10.1142/s0219455423500475)
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280455.pdf - Accepted Version 8MB |
Abstract
The optimal design of inertial amplifier base isolators (IABI) for dynamic response mitigation of multi-storey buildings subjected to base excitations has been studied in this paper. In order to achieve the closed-form expressions for optimal design parameters of IABI, H2 optimization method has been employed. The effectiveness of the closed-form expressions for optimal design parameters was evaluated by determining the isolated structures’ frequency and time domain responses and comparing them to the corresponding responses obtained from equivalent uncontrolled structures. A numerical study employing the Newmark-beta method is conducted to obtain time-domain responses using near-field earthquake base excitation. The response reduction capacity (%) of the optimum inertial amplifier base isolator is compared to the response reduction capacity (%) of the optimum traditional base isolators, demonstrating that inertial amplifiers have increased the vibration reduction performance of traditional base isolators by 50% to 60%. All the outcomes from the study are mathematically accurate and also feasible for practical design purposes.
Item Type: | Articles |
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Additional Information: | The authors’ would like to acknowledge the Inspire faculty grant, grant number DST/ INSPIRE/04/2018/000052 for partial financial support for the project. SC would like to acknowledge the MHRD grant received from IIT Delhi during the period of this research work. |
Keywords: | Applied Mathematics, Mechanical Engineering, Ocean Engineering, Aerospace Engineering, Building and Construction, Civil and Structural Engineering |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Adhikari, Professor Sondipon |
Authors: | Chowdhury, S., Banerjee, A., and Adhikari, S. |
College/School: | College of Science and Engineering > School of Engineering > Infrastructure and Environment |
Journal Name: | International Journal of Structural Stability and Dynamics |
Publisher: | World Scientific Pub Co Pte Ltd |
ISSN: | 0219-4554 |
ISSN (Online): | 1793-6764 |
Published Online: | 15 September 2022 |
Copyright Holders: | Copyright © 2022 World Scientific Publishing Company |
First Published: | First published in International Journal of Structural Stability and Dynamics 23(5): 2350047 |
Publisher Policy: | Reproduced in accordance under a Creative Commons License |
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