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<p>The diagrid framework is frequently used in tall buildings because it is structurally sound, can withstand high stress, and is aesthetically pleasing. Currently, research is ongoing to develop diagrid layouts with improved performance in the lateral direction. This study includes a comprehensive parametric analysis of a 60-storey steel diagrid structure, focusing on the effects of inclination angle and secondary X-bracing on lateral stiffness and stability. Unlike previous studies that only examined diagrids without internal modifications, this research incorporates secondary X-type bracing across the core region and evaluates its impact through static, wind, and seismic analyses. The findings indicate that a diagrid configuration with θ = 67.38º and 32 diagonal elements reduced lateral displacement by 19.11% and story drift by 40.75%. Similarly, using 16 diagonal elements yields comparable results; it reduces lateral displacement and storey drift by 15.19% and 37.95%, respectively. The study determines the optimal angle range for the diagrid (71.56º to 67.38º) that maximizes the structure’s performance.</p>

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Optimizing lateral performance of a 60-story diagrid steel structure: influence of diagonal configuration and bracing strategies

  • 期刊论文

  • 发表日期：

    2025年10月6日

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  • Aditya Kumar Tiwary,
  • Sandeep Singh,
  • Jose Ravindra Raj B,
  • Indrajeet Sahu,
  • Kanwarpreet Singh,
  • Abhishek Sharma,
  • R. Padmapriya,
  • Priyadarshi Das,
  • Vinod Balmiki

摘要

The diagrid framework is frequently used in tall buildings because it is structurally sound, can withstand high stress, and is aesthetically pleasing. Currently, research is ongoing to develop diagrid layouts with improved performance in the lateral direction. This study includes a comprehensive parametric analysis of a 60-storey steel diagrid structure, focusing on the effects of inclination angle and secondary X-bracing on lateral stiffness and stability. Unlike previous studies that only examined diagrids without internal modifications, this research incorporates secondary X-type bracing across the core region and evaluates its impact through static, wind, and seismic analyses. The findings indicate that a diagrid configuration with θ = 67.38º and 32 diagonal elements reduced lateral displacement by 19.11% and story drift by 40.75%. Similarly, using 16 diagonal elements yields comparable results; it reduces lateral displacement and storey drift by 15.19% and 37.95%, respectively. The study determines the optimal angle range for the diagrid (71.56º to 67.38º) that maximizes the structure’s performance.