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@article{205935,
        author = {Shaik Abdullah and Md Imtiyaz Qureshi},
        title = {Seismic Performance Evaluation of G+15 Soft Storey RC Buildings: A Comparative Study of Confined Masonry Infill Walls and RC Shear Walls Using Nonlinear Time History Analysis},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {13},
        number = {1},
        pages = {9052-9062},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=205935},
        abstract = {Soft storey buildings with open ground floors represent one of the most seismically hazardous structural configurations in Indian urban areas. This study presents a comprehensive seismic performance evaluation of a G+15 reinforced concrete moment-resisting frame building with confined masonry infill walls in Storeys 1–15 and an open ground storey, located in Seismic Zone V per IS 1893 (Part 1): 2016 on Type II medium soil. Three-dimensional finite element models are developed in ETABS v21, and Nonlinear Time History Analysis (NLTHA) is performed using five PEER NGA-West2 ground motion records scaled to the IS 1893 design spectrum. Two configurations are compared: Model A (confined masonry infill, soft storey) and Model B (perimeter RC shear walls with confined openings). Model A exhibits ground storey drift ratios of 0.6747% exceeding the IS 1893 limit of 0.4% by 68.7%. Model B reduces peak roof displacement by 36.2% and ground storey drift by 97.5%, achieving full IS 1893 compliance across all storeys with a 110% increase in base shear. The study conclusively demonstrates that RC shear walls with properly confined openings are an effective retrofitting strategy eliminating all drift violations.},
        keywords = {Confined masonry infill, ETABS, G+15 RC building, inter-storey drift, IS 1893, NGA-West2, nonlinear time history analysis, RC shear walls, seismic performance, soft storey.},
        month = {June},
        }