Analytical Study on Seismic Behaviour of Shear Wall with Parametric Study of Boundary Element on Sloping Ground
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Analytical Study on Seismic Behaviour of Shear Wall with Parametric Study of Boundary Element on Sloping Ground
Shaikh Mudassir Khajamoinoddin1, Rohit S. Gunjal2
1MTech Student, Department of Civil Engineering, Chh. Shahu College of Engineering, Chhatrapati Sambhajinagar
2Assistant Professor, Department of Civil Engineering, Chh. Shahu College of Engineering, Chhatrapati Sambhajinagar
Corresponding Author: shaikhmudassir002@gmail.com
ABSTRACT
This study presents a comprehensive analytical investigation into the seismic behaviour of reinforced concrete shear walls incorporating boundary elements under varying slope inclinations. Buildings situated on sloping ground experience irregular mass and stiffness distributions that amplify torsional effects, inter-storey drift, and base shear during earthquakes. The study aims to evaluate how the parametric variation of boundary element configurations specifically their length, reinforcement ratio, and confinement detailing influences seismic performance indicators such as base shear, displacement, and ductility. Using advanced finite element modeling tools like ETABS and ANSYS, the analysis was carried out for different slope angles (10°, 20°, and 30°) following the provisions of IS 1893:2016 and IS 13920:2016. Comparative simulations revealed that optimized boundary elements significantly enhance lateral stiffness, reduce displacement by up to 35%, and improve energy dissipation, ensuring a more ductile failure mechanism. The findings further demonstrate that while slope irregularities increase vulnerability, proper wall placement and boundary confinement can effectively mitigate seismic demands. The research thus contributes to developing a slope-responsive seismic design framework for shear wall systems, bridging the existing gap between analytical modeling and practical design applications in hilly regions. This work serves as a foundation for future experimental and machine learning–based optimization of boundary element configurations for enhanced structural resilience.
Keywords: Shear wall, Sloping ground, Boundary elements, Seismic performance, Parametric study, Ductility, ETABS analysis, Finite element modeling.
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