Comparative Analysis of Lightweight and Normal Concrete RC Buildings Under Seismic Loads in Zone-II And Zone-V Using ETABS

  • Unique Paper ID: 207057
  • Volume: 13
  • Issue: 2
  • PageNo: 3868-3876
  • Abstract:
  • The increasing demand for earthquake-resistant and sustainable buildings has encouraged the use of lightweight concrete in structural engineering. This study presents a comparative analysis of a G+5 reinforced concrete building constructed using conventional concrete and lightweight concrete under seismic loading. Both models were developed in ETABS with identical geometry and loading conditions and analyzed for Seismic Zone II and Zone V in accordance with relevant Indian Standard codes. The structural performance was evaluated based on base shear, storey displacement, and storey drift. The results indicate that the lightweight concrete building experienced significantly lower base shear due to its reduced self-weight, while only a slight increase in storey displacement and drift was observed. All response parameters remained within acceptable design limits. The findings demonstrate that lightweight concrete can effectively reduce seismic forces without compromising structural safety, making it a suitable alternative for medium-rise reinforced concrete buildings in earthquake-prone regions. This study highlights the potential of lightweight concrete to improve seismic performance while promoting sustainable construction practices.

Copyright & License

Copyright © 2026 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{207057,
        author = {RAJKUMAR S and Dr.G.ARUNKUMAR},
        title = {Comparative Analysis of Lightweight and Normal Concrete RC Buildings Under Seismic Loads in Zone-II And Zone-V Using ETABS},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {13},
        number = {2},
        pages = {3868-3876},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=207057},
        abstract = {The increasing demand for earthquake-resistant and sustainable buildings has encouraged the use of lightweight concrete in structural engineering. This study presents a comparative analysis of a G+5 reinforced concrete building constructed using conventional concrete and lightweight concrete under seismic loading. Both models were developed in ETABS with identical geometry and loading conditions and analyzed for Seismic Zone II and Zone V in accordance with relevant Indian Standard codes. The structural performance was evaluated based on base shear, storey displacement, and storey drift. The results indicate that the lightweight concrete building experienced significantly lower base shear due to its reduced self-weight, while only a slight increase in storey displacement and drift was observed. All response parameters remained within acceptable design limits. The findings demonstrate that lightweight concrete can effectively reduce seismic forces without compromising structural safety, making it a suitable alternative for medium-rise reinforced concrete buildings in earthquake-prone regions. This study highlights the potential of lightweight concrete to improve seismic performance while promoting sustainable construction practices.},
        keywords = {Lightweight Concrete; Reinforced Concrete Building; ETABS; Seismic Analysis; Base Shear; Storey Drift; Storey Displacement; Earthquake Resistant Design},
        month = {July},
        }

Cite This Article

S, R., & Dr.G.ARUNKUMAR, (2026). Comparative Analysis of Lightweight and Normal Concrete RC Buildings Under Seismic Loads in Zone-II And Zone-V Using ETABS. International Journal of Innovative Research in Technology (IJIRT), 13(2), 3868–3876.

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