International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 08 | Aug 2025
p-ISSN: 2395-0072
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COMPARATIVE SEISMIC ANALYSIS OF MULTISTOREY BUILDING USING STEEL BEAM AND CONCRETE COLUMN IN ETABS Pathan Irshad Khan A Naseer Khan1, Prof. S.S. Manal2 1M. Tech Student, Department of Civil Engineering, (CSMSS)Chh.Shahu College of Engineering Chh.Sambhajinagar,
Maharashtra, India
2Professor, Department of Civil Engineering, (CSMSS)Chh.Shahu College of Engineering Chh.Sambhajinagar,
Maharashtra, India ---------------------------------------------------------------------***--------------------------------------------------------------------footprint. The taller a building climbs, the more pronounced Abstract - In structural engineering, the pursuit of
the challenges become, ranging from wind and seismic forces to vertical transportation logistics and environmental considerations. Traditional construction materials and methods, while effective, often necessitate substantial resources and exhibit limitations in addressing these challenges. It is within the context of these challenges that innovative structural solutions emerge as essential catalysts for high-rise building evolution. As buildings strive to touch the sky while adhering to stringent safety, sustainability, and economic requirements, the spotlight turns to new paradigms in structural engineering. In the realm of structural engineering, the quest for innovative solutions that harmonize performance, efficiency, and sustainability remains an ongoing pursuit. As the demands placed upon our built environment become increasingly diverse and complex, traditional construction methods and materials often fall short in meeting the evolving needs of modern society. It is within this context that the concept of steelconcrete hybrid structures emerges as a compelling avenue for exploration and advancement. The inherent strengths and weaknesses of steel and concrete have long been acknowledged in the construction industry. Steel possesses exceptional tensile strength, enabling it to bear significant loads across extended spans. Conversely, concrete excels in compressive strength and durability, providing resilience against environmental and fire-related challenges. The convergence of these attributes opens up a world of possibilities for combining these materials in ways that transcend their individual limitations. 1 Standing at the intersection of tradition and innovation, the investigation into steel-concrete hybrid structures exceeds the domain of academic pursuit, evolving into a pragmatic response to the contemporary challenges of our time. The pursuit of this knowledge bears the potential to revolutionize the conceptualization, design, and construction of structures, driving humanity towards a future wherein the built environment seamlessly integrates with the natural world, all the while catering to the demands of an adaptable and evolving society. Through this report, we aim to shed light on the principles, benefits, and challenges of steel-concrete hybrid structures, contributing to the collective pool of knowledge that drives the evolution of structural engineering. In the dynamic landscape of high-rise
innovative solutions that balance performance, efficiency, and sustainability continues to evolve. Within the context of highrise construction, hybrid structural systems have gained attention for their potential to combine the strengths of different materials. One promising approach is the integration of steel beams with concrete columns, leveraging the advantages of both materials to form a unified and adaptable high-rise structure. This study investigates the seismic performance of a G+20 multistorey building using the Response Spectrum Method and Linear Time History Analysis based on the Bhuj earthquake. Four structural models were developed for comparison. Model 1 represents a conventional RCC frame, serving as a baseline. In Model 2, internal RC beams (between shear walls and columns) are replaced with steel beams. Model 3 involves the substitution of external RC beams (between peripheral columns) with steel beams. In Model 4, all RC beams throughout the structure are replaced with steel beams. Key parameters such as storey stiffness, storey displacement, storey drift, storey shear, and overturning moment were evaluated across the models. The results indicate that substituting RC beams with steel significantly enhances structural stiffness, leading to noticeable reductions in storey displacement, drift, base shear, and overturning moment. Additionally, the higher strength-to-weight ratio of steel contributes to a substantial decrease in the overall dead load of the structure. Key Words: Seismic Analysis, Steel beam, concrete column, Response Spectrum Method, Multi-story Buildings, Comparative Analysis.
1.INTRODUCTION The rise of urbanization has directed in an era where towering skyscrapers dominate city skylines, symbolizing human progress and achievement. High-rise buildings have become representative of modern architectural prowess, reshaping urban landscapes and accommodating the growing global population. However, the construction and engineering challenges associated with erecting these colossal structures are equally formidable. The very essence of a high-rise building's design revolves around optimizing space, functionality, and efficiency within a confined vertical
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