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ESTD Year: 2017 | Impact Factor: 6.9
DOI Prefix: 10.47001/IRJIET
ESTD Year: 2017 | Impact Factor: 6.9
DOI Prefix: 10.47001/IRJIET
Vol 10 No 7 (2026): Volume 10, Issue 7, July 2026 | Pages: 36-47
International Research Journal of Innovations in Engineering and Technology
OPEN ACCESS | Research Article | Published Date: 13-07-2026
The increasing demand for high-rise buildings in urban settings requires effective structural systems capable of enduring significant lateral forces from wind and seismic events. This study analyses and compares the performance of tall structures using outrigger systems to those lacking such systems. The primary aim is to understand the behaviour of different structural configurations specifically typical bare frames, frames with core walls, and those featuring outrigger and belt truss systems under lateral forces. The study entails thorough modelling and dynamic analysis of established design codes to determine displacement, drift, stiffness, and stability for the evaluation of overall structural effectiveness.
A model of a 50-story reinforced concrete edifice is developed for four separate situations, preserving a uniform plan and elevation design. Each case is analysed using both comparable static and response spectrum methods for seismic evaluation, with wind loads applied per IS 875 Part 3. The strategic implementation of outriggers is analysed for their efficacy in reducing top story displacement and inter-story drifts. Comparative studies indicate that outrigger systems markedly improve the lateral stiffness and performance of tall structures by effectively dispersing moments and shear stresses throughout structural sections, hence reducing overall deformation under lateral loads.
The research indicates that while bare frames and core walls offer no resistance to considerable lateral stresses, the incorporation of outriggers and belt trusses significantly enhances structural stability and serviceability. Such systems are particularly beneficial in regions prone to seismic activity or strong winds, where controlling displacement and drift is crucial. The findings improve the understanding of optimal structural configurations for skyscrapers and offer practical recommendations for future high-rise designs, promoting both safety and structural effectiveness.
Tall Buildings, Lateral Load Resistance. Outrigger Systems, Non-Outrigger Systems. Structural Stability, Seismic activity.
Swarsha Rani, Dr. V.K Saini, & Dr. S.K Chandel. (2026). Structural Behaviour of High-Rise Buildings with Different Outrigger Configurations under Dynamic Loading. International Research Journal of Innovations in Engineering and Technology - IRJIET, 10(7), 36-47. Article DOI https://doi.org/10.47001/IRJIET/2026.107005
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