PERFORMANCE-BASED DESIGN OF A SKYSCRAPER USING ETABS

The present study evaluated the seismic and structural performance of a G+24 reinforced concrete skyscraper using the Performance-Based Design approach in ETABS. The building was analysed under gravity, wind, and earthquake loading conditions in accordance with the relevant Indian Standard codes. The analytical results indicated satisfactory structural behaviour, with storey displacement and storey drift remaining within the permissible limits. The incorporation of reinforced concrete moment-resisting frames and a central shear wall system significantly enhanced the lateral stiffness and stability of the structure. Overall, the study demonstrates that the adopted structural configuration is capable of providing safe and efficient performance under the considered loading conditions and is suitable for modern high-rise construction. The study also demonstrates that the use of ETABS software provides an efficient and reliable platform for the modelling, analysis, and performance evaluation of high-rise reinforced concrete buildings. The adoption of Performance-Based Design enables engineers to assess the expected structural response under different loading conditions and to make informed design decisions at an early stage. The findings of this research may serve as a useful reference for future studies on tall building design and contribute to the development of safer and more sustainable urban infrastructure. The results obtained from the present study demonstrate that the adopted structural configuration provides satisfactory performance under gravity, wind, and seismic loading conditions. The integration of reinforced concrete moment-resisting frames with a centrally located shear wall system effectively improves the lateral stiffness and overall stability of the building. The evaluated response parameters indicate that the proposed design satisfies the requirements of the relevant Indian Standard codes and is suitable for high-rise construction. The implementation of the Performance-Based Design approach enables a more comprehensive assessment of structural behaviour compared to conventional design methods. By evaluating key performance parameters such as storey displacement, inter-storey drift, and structural stability, the study confirms that ETABS is an efficient tool for the analysis and design of modern skyscrapers. The outcomes of this research may serve as a valuable reference for structural engineers and researchers involved in the design and evaluation of tall reinforced concrete buildings.

[1] Bureau of Indian Standards, IS 456:2000, Plain and Reinforced Concrete – Code of Practice, New Delhi, India, 2000. [2] Bureau of Indian Standards, IS 1893 (Part 1):2016, Criteria for Earthquake Resistant Design of Structures, New Delhi, India, 2016. [3] Bureau of Indian Standards, IS 875 (Parts 1, 2 & 3), Code of Practice for Design Loads (Other than Earthquake) for Buildings and Structures, New Delhi, India. [4] Bureau of Indian Standards, IS 16700:2023, Criteria for Structural Safety of Tall Concrete Buildings, New Delhi, India, 2023. [5] Patil, S., and Patil, N. S., "Dynamic and Serviceability Performance of a 70 m RC Building Using ETABS." [6] Kuriakose, J., et al., "Design and Analysis of High Rise Buildings Using ETABS." [7] Chopra, A. K., Dynamics of Structures: Theory and Applications to Earthquake Engineering, 5th Edition, Pearson Education, 2017. [8] Gunay, M. S., and Mosalam, K. M., "PEER Performance-Based Earthquake Engineering Methodology," Journal of Structural Engineering, ASCE, 2013. [9] Computers and Structures Inc., ETABS – Integrated Building Design Software, User Guide, Berkeley, California, USA.