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@article{207483,
        author = {Mohammed Abdul Azeem and Mohammed Ibrahim and Dr.A.Swetha and Dr.Mir Iqbal Faheem},
        title = {Seismic Behavior of Outrigger Structural System on Hill Slope Buildings With Variations in Slope},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {13},
        number = {3},
        pages = {1262-1272},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=207483},
        abstract = {High-rise buildings constructed on hill slopes are highly vulnerable to seismic forces due to structural irregularities such as short-column effects, stiffness variation, and torsional response. This study evaluates the seismic performance of a G+20 reinforced concrete building located on a 10° hill slope in Guwahati (Seismic Zone V) by comparing a conventional shear wall system with a dual outrigger–shear wall system. Three-dimensional models were developed in ETABS and analyzed using Equivalent Static Analysis, Response Spectrum Analysis, and Nonlinear Time History Analysis in accordance with IS 1893:2016 and other relevant Indian Standards. Structural performance was assessed using storey displacement, inter-storey drift, storey shear, and dynamic response parameters. A supplementary parametric study for 15°, 20°, and 25° hill slopes was also carried out to evaluate the influence of terrain inclination. The results indicate that the dual outrigger–shear wall system significantly improves lateral stiffness, reduces displacement and drift, and enhances the overall seismic performance of high-rise buildings on sloping terrain. The study provides practical guidance for the seismic design of tall reinforced concrete buildings in hilly regions.},
        keywords = {},
        month = {August},
        }