Comparative Study Of Reinforced Concrete Oblique Columns And Y-shaped Columns For High-rise Structures By Using Etabs

Abstract

This Study Presents A Comparative Analysis Of High-rise Reinforced Concrete (RC) Structures Incorporating Regular Columns, Oblique Columns, And Y-shaped Columns Using ETABS. With The Growing Demand For Innovative Architectural Forms And Efficient Structural Systems, Unconventional Column Configurations Are Being Explored To Enhance Both Functionality And Aesthetics. The Research Focuses On A G+20 Storied RC Structure Analyzed Under Seismic Loading Conditions As Per IS Codes. Three Structural Models—regular, Y-shaped, And Oblique—were Developed And Evaluated For Critical Performance Parameters, Including Displacement, Storey Drift, Base Shear, Time Period, And Frequency. The Analysis Results Reveal That The Oblique Column System (diagrid) Exhibits Superior Stiffness And Lateral Stability, Demonstrated By Reduced Displacements And Shorter Time Periods. The Y-shaped Column System Provided Balanced Performance, Offering Effective Control Of Storey Drift With Moderate Stiffness, Making It A Practical Alternative For Seismic Resistance. In Contrast, The Regular Column System Exhibited Higher Displacements And Longer Time Periods, Indicating Lower Seismic Efficiency. Overall, The Findings Emphasize That Adopting Oblique And Y-shaped Column Systems Can Significantly Enhance The Seismic Performance, Stability, And Architectural Flexibility Of High-rise Structures, Thereby Offering Promising Alternatives To Conventional Vertical Column Systems In Modern Construction.

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