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Numerical Simulation for Seismic Response of Soil-Foundation-Structure Interaction on Seismic Design of High-Rise RC Building

Aayush Kumar*, Shriram Chaurasia **

*-** Department of Civil Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur, Uttar Pradesh, India.

Periodicity:March - May'2021
DOI : https://doi.org/10.26634/jce.11.2.18040

Abstract

This paper attempts to present a simplistic approach for estimating the effects of soil-foundation-structure-interaction (SFSI) for high-rise buildings constructed over different foundation conditions, to simulate the dynamic response of buildings comparatively with the fixed base condition. In this paper, a nonlinear time history and response spectrum analysis has been carried out using computer code SAP2000 while considering the soil-foundation flexibility to examine the variation in spectral acceleration (SA), spectral displacement (SD), storey displacement, storey drift, base shear obtained according to the seismic regulation in the Indian standard code. Various foundations has been consistently compared and discussed with respect to fixed base founded structure to amplify effects on seismic performance of high-rise building. The study illustrates that the value of base shear and storey displacement is increased with a significant increase in stiffness of superstructure and soil flexibility. It additionally founded that the spectral displacement (SD) and spectral acceleration (SA) are a better trend in the flexible base model with an isolated foundation on medium soil, which offers us evidence that spectral responses of a structure are related to soil condition and foundation types. We can infer that SFSI is relevant for tall buildings resting on medium soil.

Keywords

Nonlinear Time History, Response Spectrum, Soil-Foundation-Structure Interaction, Spectral Acceleration (SA), Spectral Displacement (SD).

How to Cite this Article?

Kumar, A., and Chaurasia, S. (2021). Numerical Simulation for Seismic Response of Soil-Foundation-Structure Interaction on Seismic Design of High-Rise RC Building. i-manager's Journal on Civil Engineering, 11(2), 8-22. https://doi.org/10.26634/jce.11.2.18040

References

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Numerical Simulation for Seismic Response of Soil-Foundation-Structure Interaction on Seismic Design of High-Rise RC Building

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