Seismic Evaluation of Multistorey Building with Soft Storey at Different Level: A Comparative Study

  • Unique Paper ID: 182883
  • Volume: 12
  • Issue: 2
  • PageNo: 3605-3615
  • Abstract:
  • The seismic performance of multistorey buildings with soft storeys at different levels is a crucial factor in structural safety, particularly in earthquake-prone regions. Soft storeys, characterized by reduced lateral stiffness relative to adjacent floors, lead to significant seismic vulnerabilities, including excessive inter-storey drifts, plastic hinge formation, and potential structural failure. This study investigates the dynamic behavior of such buildings using nonlinear static and dynamic analyses, considering various configurations where soft storeys are located at the base, intermediate, and upper levels. The impact of shear wall reinforcements at critical locations is also evaluated to determine their effectiveness in mitigating seismic risks. Results indicate that soft storeys, regardless of their position within the structure, exacerbate torsional effects and amplify displacement demands, increasing the risk of localized damage and progressive collapse. The findings emphasize the necessity of advanced design approaches, including optimized reinforcement strategies and the minimization of vertical irregularities, to enhance the seismic resilience of buildings with soft storeys.

Copyright & License

Copyright © 2025 Authors retain the copyright of this article. This article is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

BibTeX

@article{182883,
        author = {Jay V. Shah and S. A. Rasal and Radhika Jadhav},
        title = {Seismic Evaluation of Multistorey Building with Soft Storey at Different Level: A Comparative Study},
        journal = {International Journal of Innovative Research in Technology},
        year = {2025},
        volume = {12},
        number = {2},
        pages = {3605-3615},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=182883},
        abstract = {The seismic performance of multistorey buildings with soft storeys at different levels is a crucial factor in structural safety, particularly in earthquake-prone regions. Soft storeys, characterized by reduced lateral stiffness relative to adjacent floors, lead to significant seismic vulnerabilities, including excessive inter-storey drifts, plastic hinge formation, and potential structural failure. This study investigates the dynamic behavior of such buildings using nonlinear static and dynamic analyses, considering various configurations where soft storeys are located at the base, intermediate, and upper levels. The impact of shear wall reinforcements at critical locations is also evaluated to determine their effectiveness in mitigating seismic risks. Results indicate that soft storeys, regardless of their position within the structure, exacerbate torsional effects and amplify displacement demands, increasing the risk of localized damage and progressive collapse. The findings emphasize the necessity of advanced design approaches, including optimized reinforcement strategies and the minimization of vertical irregularities, to enhance the seismic resilience of buildings with soft storeys.},
        keywords = {Soft storey, Earthquake, Storey drift, Displacement, Stiffness},
        month = {July},
        }

Cite This Article

  • ISSN: 2349-6002
  • Volume: 12
  • Issue: 2
  • PageNo: 3605-3615

Seismic Evaluation of Multistorey Building with Soft Storey at Different Level: A Comparative Study

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