Effective Positioning of Shear Wall in Asymmetrical Building on Sloping Ground

The present study focuses on the effective positioning of shear walls in asymmetrical buildings constructed on sloping ground. A multi-storey reinforced cement concrete (RCC) building (G+7) with a slope angle of 15° is considered for analysis. The structural modelling and analysis are carried out using STAAD Pro software. Different shear wall configurations, namely C-shaped, L-shaped, and T-shaped shear walls, are incorporated into the building model to evaluate their influence on structural performance. The analysis is performed using linear static analysis and response spectrum analysis as per relevant Indian Standard codes. Key structural parameters such as storey displacement, storey drift, base reaction, bending moment, shear force, and axial force are evaluated and compared for all models. The results are presented in tabular and graphical forms for better understanding. The results of the study indicate that the inclusion of shear walls significantly improves the seismic performance of the structure by increasing stiffness and reducing lateral displacement. Among the different configurations, the L-shaped shear wall is found to be the most effective in controlling displacement and drift, while the T-shaped shear wall attracts higher internal forces due to increased stiffness. The C-shaped shear wall shows comparatively lower stiffness and performance. The study concludes that proper selection and positioning of shear walls play a crucial role in enhancing the stability and safety of buildings constructed on sloping ground. The findings of this study can be useful for structural engineers in designing efficient and earthquake-resistant structures in hilly regions.