Influence of Geometric Configuration on the Seismic Response of T-Shaped Reinforced Concrete Shear Walls in Steel High-Rise Buildings

Document Type : Original Article

Authors

School of Civil Engineering, College of Engineering, University of Tehran, Tehran, Iran

Abstract

T-shaped shear walls, due to their three-dimensional behavior, effectively enhance seismic resistance in both principal directions of high-rise buildings. Their performance is strongly influenced by geometric parameters, particularly the flange length-to-thickness ratio and web position. In this study, the seismic behavior of steel high-rise buildings equipped with reinforced concrete T-shaped shear walls was investigated for various flange length-to-thickness ratios, and a comparative assessment with ┼-shaped shear walls was conducted. Linear dynamic response spectrum analysis was performed on 10-, 20-, and 30-story buildings. Maximum story displacements and inter-story drifts were evaluated. The results indicate that with an increase in the flange length-to-thickness ratio, maximum story displacement decreases by 7–22%, and with a further increase in the ratio, the reduction reaches 20–44% compared to the baseline model across different building heights. Furthermore, T-shaped shear walls consistently outperform ┼-shaped configurations, reducing maximum story displacement by 30, 33, and 43% for 10-, 20-, and 30-story buildings, respectively. These findings highlight the significant influence of geometric parameters on seismic performance and provide practical guidance for preliminary design and optimization of shear walls in high-rise steel structures.

Keywords

Main Subjects

References

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Civil Engineering and Applied Solutions
Volume 3, Issue 1
Issue in Progress
January 2027
Pages 37-50

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History

  • Receive Date: 28 January 2026
  • Revise Date: 23 February 2026
  • Accept Date: 12 May 2026
  • First Publish Date: 18 May 2026

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