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Performance of High-Rise RC Building with Re-Entrant Corner in High Seismic Zone

Aruna Kote *, Sushma C. K.**

*-** Department of Civil Engineering, Dayananda Sagar College of Engineering, Bengaluru, Karnataka, India.

Periodicity:September - November'2020
DOI : https://doi.org/10.26634/jste.9.3.17565

Abstract

Irregular configuration and multi-storey buildings are becoming necessary to accomplish one of the basic requirements of growing population. Nevertheless, the irregular configuration of the buildings poses design challenges when subjected to earthquake. Study of former seismic actions has disclosed that plan irregular buildings exposes to critical damage due to immoderate torsion and stress accumulation. This paper presents a performance study on high-rise RC building with reentrant corner, which is a form of plan irregularity, in high seismic zone by varying the plan aspect ratio. Four buildings of Lshape, Plus-shape, I-shape and T-shape with 30 stories are analyzed by carrying out pushover analysis using ETABS17 software. Parameters such as ductility ratio, displacement, storey drift, base shear and stiffness are considered for the performance evaluation. In this paper a detailed study of the ductility ratio has been made and it can be concluded that the I-shape building is more ductile compared to all the other shape buildings.

Keywords

High-Rise, Plan Irregularity, Pushover Analysis, Global Ductility.

How to Cite this Article?

Kote, A., and Sushma, C. K. (2020). Performance of High-Rise RC Building with Re-Entrant Corner in High Seismic Zone. i-manager's Journal on Structural Engineering, 9(3), 28-36. https://doi.org/10.26634/jste.9.3.17565

References

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