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Riya Khanna
Independent Researcher
India
Abstract
This study investigates the seismic performance of reinforced concrete (RC) structures equipped with base isolation systems. Base isolation is a proven technique to mitigate seismic forces, thereby improving structural resilience during earthquakes. The manuscript provides a comprehensive analysis using dynamic time-history response simulations of RC structures both with and without base isolation. The performance parameters such as displacement, acceleration, base shear, and inter-story drift are evaluated under different seismic intensity levels. Results demonstrate that base isolation significantly reduces seismic responses, enhancing safety and serviceability. The study concludes with design recommendations and highlights future research directions to optimize base isolation in RC structures.
Keywords
Seismic performance, reinforced concrete structures, base isolation systems, earthquake engineering, dynamic analysis
REFERENCES
- Skinner, R. I., Robinson, W. H., & McVerry, G. H. (1993). An introduction to seismic isolation. Wiley. google.com
- Kelly, J. M. (1997). Earthquake-resistant design with rubber bearings. Springer. com
- Buckle, I. G., & Mayes, R. L. (1990). Seismic isolation: history, application, and performance—a world overview. Earthquake Spectra, 6(2), 161–202. rice.edu
- Kelly, J. M. (1986). Aseismic base isolation: review and bibliography. Soil Dynamics and Earthquake Engineering, 5(4), 202–217. rice.edu
- Constantinou, M. C., Mokha, A., & Reinhorn, A. M. (1990). Teflon bearings in base isolation I: Testing. Journal of Structural Engineering, 116(2), 438–454. rice.edu
- Constantinou, M. C., Mokha, A., & Reinhorn, A. M. (1990). Teflon bearings in base isolation II: Modeling. Journal of Structural Engineering, 116(2), 455–474. rice.edu
- Nagarajaiah, S., Reinhorn, A. M., & Constantinou, M. C. (1991). Nonlinear dynamic analysis of three-dimensional base-isolated structures. Journal of Structural Engineering, 117(7), 2035–2052. rice.edu
- Ceccoli, C., Mazzotti, C., & Savoia, M. (1999). Non-linear seismic analysis of base-isolated RC frame structures. Earthquake Engineering & Structural Dynamics, 28(6), 633–653. wiley.com
- Cancellara, D., & De Angelis, F. (2016). Assessment and dynamic nonlinear analysis of different base isolation systems for a multi-storey RC building irregular in plan. Computers & Structures, 180, 1–12. https://doi.org/10.1016/j.compstruc.2016.02.012 net
- Su, L., Ahmadi, G., & Tadjbakhsh, I. G. (1989). A comparative study of performance of various base isolation systems, Part I: Shear beam structures. Earthquake Engineering & Structural Dynamics, 18(1), 11–32. rice.edu