Evaluation of Seismic Response of 3D Building Frame with and without Base Isolation Using Finite Element Analysis †
Abstract
:1. Introduction
2. Methodology
3. Ground Motion Time History
4. Seismic Response
5. Conclusions
- In comparison to a fixed-base frame, the frame with base isolation shows a significant decrease in story displacement, i.e., by 85.9%; a story drift of 94.5%; and story shear, which is 80.7% because of the reduction in seismic effect after the provision of lead rubber base isolators.
- The results indicate that for earthquakes of relatively lower magnitudes, base isolators have been proven to be very effective and important, especially for buildings which have not been designed according to the seismic demand.
- This study demonstrates that base isolation can be successfully used in mid-rise buildings to mitigate the effects of earthquakes and can be used for retrofitting to prevent structural damage.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Lead Rubber Isolator (LRB) Properties | |
---|---|
Rotational inertia | 0.009721 kN/m |
Effective stiffness (Linear) | 889,950.58 kN/m |
Effective stiffness (Non-linear) | 889.95 kN/m |
Effective damping (Non-linear) | 5% |
Stiffness (Non-linear) | 8201 kN/m |
Yield strength (Non-linear) | 26.27 kN |
Post yield strength ratio | 0.1 |
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Ali, F.; Azam, H.; Habib, M. Evaluation of Seismic Response of 3D Building Frame with and without Base Isolation Using Finite Element Analysis. Eng. Proc. 2023, 44, 10. https://doi.org/10.3390/engproc2023044010
Ali F, Azam H, Habib M. Evaluation of Seismic Response of 3D Building Frame with and without Base Isolation Using Finite Element Analysis. Engineering Proceedings. 2023; 44(1):10. https://doi.org/10.3390/engproc2023044010
Chicago/Turabian StyleAli, Fahad, Hammad Azam, and Muhammad Habib. 2023. "Evaluation of Seismic Response of 3D Building Frame with and without Base Isolation Using Finite Element Analysis" Engineering Proceedings 44, no. 1: 10. https://doi.org/10.3390/engproc2023044010
APA StyleAli, F., Azam, H., & Habib, M. (2023). Evaluation of Seismic Response of 3D Building Frame with and without Base Isolation Using Finite Element Analysis. Engineering Proceedings, 44(1), 10. https://doi.org/10.3390/engproc2023044010