Comparative Analysis of Different Locations of the Shear Wall in Multi-storey Rc Building on Sloping Ground With Flat Ground

Abstract This research investigates the seismic behavior of G + 15-story reinforced concrete (RC) buildings, emphasizing the impact of shear wall location on buildings situated on both level and sloping sites. Shear walls offer lateral stability and seismic force resistance in high-rise structures. This study assesses the effectiveness of several shear wall structures in various geological settings. There are differences in the centers of mass and rigidity due to the stiffness and mass distribution in these buildings along the vertical and horizontal directions. Increased seismic damage may result from this inconsistency, particularly in buildings situated on sloping terrain where torsional reactions are more noticeable. Such structures often experience greater displacements and base shear forces, with shorter columns being particularly vulnerable to stress and damage. Additionally, buildings with setbacks, where the floors step back toward the hillside, may exhibit unique seismic vulnerabilities. This study analyzes various shear wall placements and compares the performance of structures on flat ground to those on slopes of 10°, 20°, and 30°. The analysis used the Equivalent Static Method and Response Spectrum Method with ETABS 19.1.0 software. The key metrics were story displacement, story stiffness, and base shear values. The findings provide insights into optimizing shear wall placement to improve seismic resilience under diverse terrain conditions.